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, 0x3007), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
171 /* Atheros AR5BBU12 with sflash firmware */
172 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
174 /* Atheros AR5BBU12 with sflash firmware */
175 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
178 /* Broadcom BCM2035 */
179 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
180 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
181 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
183 /* Broadcom BCM2045 */
184 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
185 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
187 /* IBM/Lenovo ThinkPad with Broadcom chip */
188 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
189 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
191 /* HP laptop with Broadcom chip */
192 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
194 /* Dell laptop with Broadcom chip */
195 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
197 /* Dell Wireless 370 and 410 devices */
198 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
199 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
201 /* Belkin F8T012 and F8T013 devices */
202 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
203 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* Asus WL-BTD202 device */
206 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
208 /* Kensington Bluetooth USB adapter */
209 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
211 /* RTX Telecom based adapters with buggy SCO support */
212 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
213 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
215 /* CONWISE Technology based adapters with buggy SCO support */
216 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
218 /* Digianswer devices */
219 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
220 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
222 /* CSR BlueCore Bluetooth Sniffer */
223 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
225 /* Frontline ComProbe Bluetooth Sniffer */
226 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
228 /* Intel Bluetooth device */
229 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
230 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
232 { } /* Terminating entry */
235 #define BTUSB_MAX_ISOC_FRAMES 10
237 #define BTUSB_INTR_RUNNING 0
238 #define BTUSB_BULK_RUNNING 1
239 #define BTUSB_ISOC_RUNNING 2
240 #define BTUSB_SUSPENDING 3
241 #define BTUSB_DID_ISO_RESUME 4
244 struct hci_dev *hdev;
245 struct usb_device *udev;
246 struct usb_interface *intf;
247 struct usb_interface *isoc;
253 struct work_struct work;
254 struct work_struct waker;
256 struct usb_anchor tx_anchor;
257 struct usb_anchor intr_anchor;
258 struct usb_anchor bulk_anchor;
259 struct usb_anchor isoc_anchor;
260 struct usb_anchor deferred;
264 struct usb_endpoint_descriptor *intr_ep;
265 struct usb_endpoint_descriptor *bulk_tx_ep;
266 struct usb_endpoint_descriptor *bulk_rx_ep;
267 struct usb_endpoint_descriptor *isoc_tx_ep;
268 struct usb_endpoint_descriptor *isoc_rx_ep;
272 unsigned int sco_num;
277 static int inc_tx(struct btusb_data *data)
282 spin_lock_irqsave(&data->txlock, flags);
283 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
285 data->tx_in_flight++;
286 spin_unlock_irqrestore(&data->txlock, flags);
291 static void btusb_intr_complete(struct urb *urb)
293 struct hci_dev *hdev = urb->context;
294 struct btusb_data *data = hci_get_drvdata(hdev);
297 BT_DBG("%s urb %p status %d count %d", hdev->name,
298 urb, urb->status, urb->actual_length);
300 if (!test_bit(HCI_RUNNING, &hdev->flags))
303 if (urb->status == 0) {
304 hdev->stat.byte_rx += urb->actual_length;
306 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
307 urb->transfer_buffer,
308 urb->actual_length) < 0) {
309 BT_ERR("%s corrupted event packet", hdev->name);
314 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
317 usb_mark_last_busy(data->udev);
318 usb_anchor_urb(urb, &data->intr_anchor);
320 err = usb_submit_urb(urb, GFP_ATOMIC);
322 /* -EPERM: urb is being killed;
323 * -ENODEV: device got disconnected */
324 if (err != -EPERM && err != -ENODEV)
325 BT_ERR("%s urb %p failed to resubmit (%d)",
326 hdev->name, urb, -err);
327 usb_unanchor_urb(urb);
331 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
333 struct btusb_data *data = hci_get_drvdata(hdev);
339 BT_DBG("%s", hdev->name);
344 urb = usb_alloc_urb(0, mem_flags);
348 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
350 buf = kmalloc(size, mem_flags);
356 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
358 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
359 btusb_intr_complete, hdev,
360 data->intr_ep->bInterval);
362 urb->transfer_flags |= URB_FREE_BUFFER;
364 usb_anchor_urb(urb, &data->intr_anchor);
366 err = usb_submit_urb(urb, mem_flags);
368 if (err != -EPERM && err != -ENODEV)
369 BT_ERR("%s urb %p submission failed (%d)",
370 hdev->name, urb, -err);
371 usb_unanchor_urb(urb);
379 static void btusb_bulk_complete(struct urb *urb)
381 struct hci_dev *hdev = urb->context;
382 struct btusb_data *data = hci_get_drvdata(hdev);
385 BT_DBG("%s urb %p status %d count %d", hdev->name,
386 urb, urb->status, urb->actual_length);
388 if (!test_bit(HCI_RUNNING, &hdev->flags))
391 if (urb->status == 0) {
392 hdev->stat.byte_rx += urb->actual_length;
394 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
395 urb->transfer_buffer,
396 urb->actual_length) < 0) {
397 BT_ERR("%s corrupted ACL packet", hdev->name);
402 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
405 usb_anchor_urb(urb, &data->bulk_anchor);
406 usb_mark_last_busy(data->udev);
408 err = usb_submit_urb(urb, GFP_ATOMIC);
410 /* -EPERM: urb is being killed;
411 * -ENODEV: device got disconnected */
412 if (err != -EPERM && err != -ENODEV)
413 BT_ERR("%s urb %p failed to resubmit (%d)",
414 hdev->name, urb, -err);
415 usb_unanchor_urb(urb);
419 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
421 struct btusb_data *data = hci_get_drvdata(hdev);
425 int err, size = HCI_MAX_FRAME_SIZE;
427 BT_DBG("%s", hdev->name);
429 if (!data->bulk_rx_ep)
432 urb = usb_alloc_urb(0, mem_flags);
436 buf = kmalloc(size, mem_flags);
442 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
444 usb_fill_bulk_urb(urb, data->udev, pipe,
445 buf, size, btusb_bulk_complete, hdev);
447 urb->transfer_flags |= URB_FREE_BUFFER;
449 usb_mark_last_busy(data->udev);
450 usb_anchor_urb(urb, &data->bulk_anchor);
452 err = usb_submit_urb(urb, mem_flags);
454 if (err != -EPERM && err != -ENODEV)
455 BT_ERR("%s urb %p submission failed (%d)",
456 hdev->name, urb, -err);
457 usb_unanchor_urb(urb);
465 static void btusb_isoc_complete(struct urb *urb)
467 struct hci_dev *hdev = urb->context;
468 struct btusb_data *data = hci_get_drvdata(hdev);
471 BT_DBG("%s urb %p status %d count %d", hdev->name,
472 urb, urb->status, urb->actual_length);
474 if (!test_bit(HCI_RUNNING, &hdev->flags))
477 if (urb->status == 0) {
478 for (i = 0; i < urb->number_of_packets; i++) {
479 unsigned int offset = urb->iso_frame_desc[i].offset;
480 unsigned int length = urb->iso_frame_desc[i].actual_length;
482 if (urb->iso_frame_desc[i].status)
485 hdev->stat.byte_rx += length;
487 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
488 urb->transfer_buffer + offset,
490 BT_ERR("%s corrupted SCO packet", hdev->name);
496 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
499 usb_anchor_urb(urb, &data->isoc_anchor);
501 err = usb_submit_urb(urb, GFP_ATOMIC);
503 /* -EPERM: urb is being killed;
504 * -ENODEV: device got disconnected */
505 if (err != -EPERM && err != -ENODEV)
506 BT_ERR("%s urb %p failed to resubmit (%d)",
507 hdev->name, urb, -err);
508 usb_unanchor_urb(urb);
512 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
516 BT_DBG("len %d mtu %d", len, mtu);
518 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
519 i++, offset += mtu, len -= mtu) {
520 urb->iso_frame_desc[i].offset = offset;
521 urb->iso_frame_desc[i].length = mtu;
524 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
525 urb->iso_frame_desc[i].offset = offset;
526 urb->iso_frame_desc[i].length = len;
530 urb->number_of_packets = i;
533 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
535 struct btusb_data *data = hci_get_drvdata(hdev);
541 BT_DBG("%s", hdev->name);
543 if (!data->isoc_rx_ep)
546 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
550 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
551 BTUSB_MAX_ISOC_FRAMES;
553 buf = kmalloc(size, mem_flags);
559 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
561 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
562 hdev, data->isoc_rx_ep->bInterval);
564 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
566 __fill_isoc_descriptor(urb, size,
567 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
569 usb_anchor_urb(urb, &data->isoc_anchor);
571 err = usb_submit_urb(urb, mem_flags);
573 if (err != -EPERM && err != -ENODEV)
574 BT_ERR("%s urb %p submission failed (%d)",
575 hdev->name, urb, -err);
576 usb_unanchor_urb(urb);
584 static void btusb_tx_complete(struct urb *urb)
586 struct sk_buff *skb = urb->context;
587 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
588 struct btusb_data *data = hci_get_drvdata(hdev);
590 BT_DBG("%s urb %p status %d count %d", hdev->name,
591 urb, urb->status, urb->actual_length);
593 if (!test_bit(HCI_RUNNING, &hdev->flags))
597 hdev->stat.byte_tx += urb->transfer_buffer_length;
602 spin_lock(&data->txlock);
603 data->tx_in_flight--;
604 spin_unlock(&data->txlock);
606 kfree(urb->setup_packet);
611 static void btusb_isoc_tx_complete(struct urb *urb)
613 struct sk_buff *skb = urb->context;
614 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
616 BT_DBG("%s urb %p status %d count %d", hdev->name,
617 urb, urb->status, urb->actual_length);
619 if (!test_bit(HCI_RUNNING, &hdev->flags))
623 hdev->stat.byte_tx += urb->transfer_buffer_length;
628 kfree(urb->setup_packet);
633 static int btusb_open(struct hci_dev *hdev)
635 struct btusb_data *data = hci_get_drvdata(hdev);
638 BT_DBG("%s", hdev->name);
640 err = usb_autopm_get_interface(data->intf);
644 data->intf->needs_remote_wakeup = 1;
646 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
649 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
652 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
656 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
658 usb_kill_anchored_urbs(&data->intr_anchor);
662 set_bit(BTUSB_BULK_RUNNING, &data->flags);
663 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
666 usb_autopm_put_interface(data->intf);
670 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
671 clear_bit(HCI_RUNNING, &hdev->flags);
672 usb_autopm_put_interface(data->intf);
676 static void btusb_stop_traffic(struct btusb_data *data)
678 usb_kill_anchored_urbs(&data->intr_anchor);
679 usb_kill_anchored_urbs(&data->bulk_anchor);
680 usb_kill_anchored_urbs(&data->isoc_anchor);
683 static int btusb_close(struct hci_dev *hdev)
685 struct btusb_data *data = hci_get_drvdata(hdev);
688 BT_DBG("%s", hdev->name);
690 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
693 cancel_work_sync(&data->work);
694 cancel_work_sync(&data->waker);
696 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
697 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
698 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
700 btusb_stop_traffic(data);
701 err = usb_autopm_get_interface(data->intf);
705 data->intf->needs_remote_wakeup = 0;
706 usb_autopm_put_interface(data->intf);
709 usb_scuttle_anchored_urbs(&data->deferred);
713 static int btusb_flush(struct hci_dev *hdev)
715 struct btusb_data *data = hci_get_drvdata(hdev);
717 BT_DBG("%s", hdev->name);
719 usb_kill_anchored_urbs(&data->tx_anchor);
724 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
726 struct btusb_data *data = hci_get_drvdata(hdev);
727 struct usb_ctrlrequest *dr;
732 BT_DBG("%s", hdev->name);
734 if (!test_bit(HCI_RUNNING, &hdev->flags))
737 skb->dev = (void *) hdev;
739 switch (bt_cb(skb)->pkt_type) {
740 case HCI_COMMAND_PKT:
741 urb = usb_alloc_urb(0, GFP_ATOMIC);
745 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
751 dr->bRequestType = data->cmdreq_type;
755 dr->wLength = __cpu_to_le16(skb->len);
757 pipe = usb_sndctrlpipe(data->udev, 0x00);
759 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
760 skb->data, skb->len, btusb_tx_complete, skb);
765 case HCI_ACLDATA_PKT:
766 if (!data->bulk_tx_ep)
769 urb = usb_alloc_urb(0, GFP_ATOMIC);
773 pipe = usb_sndbulkpipe(data->udev,
774 data->bulk_tx_ep->bEndpointAddress);
776 usb_fill_bulk_urb(urb, data->udev, pipe,
777 skb->data, skb->len, btusb_tx_complete, skb);
782 case HCI_SCODATA_PKT:
783 if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
786 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
790 pipe = usb_sndisocpipe(data->udev,
791 data->isoc_tx_ep->bEndpointAddress);
793 usb_fill_int_urb(urb, data->udev, pipe,
794 skb->data, skb->len, btusb_isoc_tx_complete,
795 skb, data->isoc_tx_ep->bInterval);
797 urb->transfer_flags = URB_ISO_ASAP;
799 __fill_isoc_descriptor(urb, skb->len,
800 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
811 usb_anchor_urb(urb, &data->deferred);
812 schedule_work(&data->waker);
818 usb_anchor_urb(urb, &data->tx_anchor);
820 err = usb_submit_urb(urb, GFP_ATOMIC);
822 if (err != -EPERM && err != -ENODEV)
823 BT_ERR("%s urb %p submission failed (%d)",
824 hdev->name, urb, -err);
825 kfree(urb->setup_packet);
826 usb_unanchor_urb(urb);
828 usb_mark_last_busy(data->udev);
836 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
838 struct btusb_data *data = hci_get_drvdata(hdev);
840 BT_DBG("%s evt %d", hdev->name, evt);
842 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
843 data->sco_num = hci_conn_num(hdev, SCO_LINK);
844 schedule_work(&data->work);
848 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
850 struct btusb_data *data = hci_get_drvdata(hdev);
851 struct usb_interface *intf = data->isoc;
852 struct usb_endpoint_descriptor *ep_desc;
858 err = usb_set_interface(data->udev, 1, altsetting);
860 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
864 data->isoc_altsetting = altsetting;
866 data->isoc_tx_ep = NULL;
867 data->isoc_rx_ep = NULL;
869 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
870 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
872 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
873 data->isoc_tx_ep = ep_desc;
877 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
878 data->isoc_rx_ep = ep_desc;
883 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
884 BT_ERR("%s invalid SCO descriptors", hdev->name);
891 static void btusb_work(struct work_struct *work)
893 struct btusb_data *data = container_of(work, struct btusb_data, work);
894 struct hci_dev *hdev = data->hdev;
898 if (data->sco_num > 0) {
899 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
900 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
902 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
903 usb_kill_anchored_urbs(&data->isoc_anchor);
907 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
910 if (hdev->voice_setting & 0x0020) {
911 static const int alts[3] = { 2, 4, 5 };
912 new_alts = alts[data->sco_num - 1];
914 new_alts = data->sco_num;
917 if (data->isoc_altsetting != new_alts) {
918 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
919 usb_kill_anchored_urbs(&data->isoc_anchor);
921 if (__set_isoc_interface(hdev, new_alts) < 0)
925 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
926 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
927 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
929 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
932 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
933 usb_kill_anchored_urbs(&data->isoc_anchor);
935 __set_isoc_interface(hdev, 0);
936 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
937 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
941 static void btusb_waker(struct work_struct *work)
943 struct btusb_data *data = container_of(work, struct btusb_data, waker);
946 err = usb_autopm_get_interface(data->intf);
950 usb_autopm_put_interface(data->intf);
953 static int btusb_setup_bcm92035(struct hci_dev *hdev)
958 BT_DBG("%s", hdev->name);
960 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
962 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
969 static int btusb_setup_csr(struct hci_dev *hdev)
971 struct hci_rp_read_local_version *rp;
975 BT_DBG("%s", hdev->name);
977 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
980 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
981 return -PTR_ERR(skb);
984 rp = (struct hci_rp_read_local_version *) skb->data;
987 if (le16_to_cpu(rp->manufacturer) != 10) {
988 /* Clear the reset quirk since this is not an actual
989 * early Bluetooth 1.1 device from CSR.
991 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
993 /* These fake CSR controllers have all a broken
994 * stored link key handling and so just disable it.
996 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1001 ret = -bt_to_errno(rp->status);
1008 struct intel_version {
1021 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1022 struct intel_version *ver)
1024 const struct firmware *fw;
1028 snprintf(fwname, sizeof(fwname),
1029 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1030 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1031 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1032 ver->fw_build_ww, ver->fw_build_yy);
1034 ret = request_firmware(&fw, fwname, &hdev->dev);
1036 if (ret == -EINVAL) {
1037 BT_ERR("%s Intel firmware file request failed (%d)",
1042 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1043 hdev->name, fwname, ret);
1045 /* If the correct firmware patch file is not found, use the
1046 * default firmware patch file instead
1048 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1049 ver->hw_platform, ver->hw_variant);
1050 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1051 BT_ERR("%s failed to open default Intel fw file: %s",
1052 hdev->name, fwname);
1057 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1062 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1063 const struct firmware *fw,
1064 const u8 **fw_ptr, int *disable_patch)
1066 struct sk_buff *skb;
1067 struct hci_command_hdr *cmd;
1068 const u8 *cmd_param;
1069 struct hci_event_hdr *evt = NULL;
1070 const u8 *evt_param = NULL;
1071 int remain = fw->size - (*fw_ptr - fw->data);
1073 /* The first byte indicates the types of the patch command or event.
1074 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1075 * in the current firmware buffer doesn't start with 0x01 or
1076 * the size of remain buffer is smaller than HCI command header,
1077 * the firmware file is corrupted and it should stop the patching
1080 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1081 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1087 cmd = (struct hci_command_hdr *)(*fw_ptr);
1088 *fw_ptr += sizeof(*cmd);
1089 remain -= sizeof(*cmd);
1091 /* Ensure that the remain firmware data is long enough than the length
1092 * of command parameter. If not, the firmware file is corrupted.
1094 if (remain < cmd->plen) {
1095 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1099 /* If there is a command that loads a patch in the firmware
1100 * file, then enable the patch upon success, otherwise just
1101 * disable the manufacturer mode, for example patch activation
1102 * is not required when the default firmware patch file is used
1103 * because there are no patch data to load.
1105 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1108 cmd_param = *fw_ptr;
1109 *fw_ptr += cmd->plen;
1110 remain -= cmd->plen;
1112 /* This reads the expected events when the above command is sent to the
1113 * device. Some vendor commands expects more than one events, for
1114 * example command status event followed by vendor specific event.
1115 * For this case, it only keeps the last expected event. so the command
1116 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1117 * last expected event.
1119 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1123 evt = (struct hci_event_hdr *)(*fw_ptr);
1124 *fw_ptr += sizeof(*evt);
1125 remain -= sizeof(*evt);
1127 if (remain < evt->plen) {
1128 BT_ERR("%s Intel fw corrupted: invalid evt len",
1133 evt_param = *fw_ptr;
1134 *fw_ptr += evt->plen;
1135 remain -= evt->plen;
1138 /* Every HCI commands in the firmware file has its correspond event.
1139 * If event is not found or remain is smaller than zero, the firmware
1140 * file is corrupted.
1142 if (!evt || !evt_param || remain < 0) {
1143 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1147 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1148 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1150 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1151 hdev->name, cmd->opcode, PTR_ERR(skb));
1152 return PTR_ERR(skb);
1155 /* It ensures that the returned event matches the event data read from
1156 * the firmware file. At fist, it checks the length and then
1157 * the contents of the event.
1159 if (skb->len != evt->plen) {
1160 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1161 le16_to_cpu(cmd->opcode));
1166 if (memcmp(skb->data, evt_param, evt->plen)) {
1167 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1168 hdev->name, le16_to_cpu(cmd->opcode));
1177 static int btusb_setup_intel(struct hci_dev *hdev)
1179 struct sk_buff *skb;
1180 const struct firmware *fw;
1183 struct intel_version *ver;
1185 const u8 mfg_enable[] = { 0x01, 0x00 };
1186 const u8 mfg_disable[] = { 0x00, 0x00 };
1187 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1188 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1190 BT_DBG("%s", hdev->name);
1192 /* The controller has a bug with the first HCI command sent to it
1193 * returning number of completed commands as zero. This would stall the
1194 * command processing in the Bluetooth core.
1196 * As a workaround, send HCI Reset command first which will reset the
1197 * number of completed commands and allow normal command processing
1200 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1202 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1203 hdev->name, PTR_ERR(skb));
1204 return PTR_ERR(skb);
1208 /* Read Intel specific controller version first to allow selection of
1209 * which firmware file to load.
1211 * The returned information are hardware variant and revision plus
1212 * firmware variant, revision and build number.
1214 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1216 BT_ERR("%s reading Intel fw version command failed (%ld)",
1217 hdev->name, PTR_ERR(skb));
1218 return PTR_ERR(skb);
1221 if (skb->len != sizeof(*ver)) {
1222 BT_ERR("%s Intel version event length mismatch", hdev->name);
1227 ver = (struct intel_version *)skb->data;
1229 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1232 return -bt_to_errno(ver->status);
1235 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1236 hdev->name, ver->hw_platform, ver->hw_variant,
1237 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1238 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1241 /* fw_patch_num indicates the version of patch the device currently
1242 * have. If there is no patch data in the device, it is always 0x00.
1243 * So, if it is other than 0x00, no need to patch the deivce again.
1245 if (ver->fw_patch_num) {
1246 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1247 hdev->name, ver->fw_patch_num);
1252 /* Opens the firmware patch file based on the firmware version read
1253 * from the controller. If it fails to open the matching firmware
1254 * patch file, it tries to open the default firmware patch file.
1255 * If no patch file is found, allow the device to operate without
1258 fw = btusb_setup_intel_get_fw(hdev, ver);
1265 /* This Intel specific command enables the manufacturer mode of the
1268 * Only while this mode is enabled, the driver can download the
1269 * firmware patch data and configuration parameters.
1271 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1273 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1274 hdev->name, PTR_ERR(skb));
1275 release_firmware(fw);
1276 return PTR_ERR(skb);
1280 u8 evt_status = skb->data[0];
1281 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1282 hdev->name, evt_status);
1284 release_firmware(fw);
1285 return -bt_to_errno(evt_status);
1291 /* The firmware data file consists of list of Intel specific HCI
1292 * commands and its expected events. The first byte indicates the
1293 * type of the message, either HCI command or HCI event.
1295 * It reads the command and its expected event from the firmware file,
1296 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1297 * the returned event is compared with the event read from the firmware
1298 * file and it will continue until all the messages are downloaded to
1301 * Once the firmware patching is completed successfully,
1302 * the manufacturer mode is disabled with reset and activating the
1305 * If the firmware patching fails, the manufacturer mode is
1306 * disabled with reset and deactivating the patch.
1308 * If the default patch file is used, no reset is done when disabling
1311 while (fw->size > fw_ptr - fw->data) {
1314 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1317 goto exit_mfg_deactivate;
1320 release_firmware(fw);
1323 goto exit_mfg_disable;
1325 /* Patching completed successfully and disable the manufacturer mode
1326 * with reset and activate the downloaded firmware patches.
1328 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1329 mfg_reset_activate, HCI_INIT_TIMEOUT);
1331 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1332 hdev->name, PTR_ERR(skb));
1333 return PTR_ERR(skb);
1337 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1343 /* Disable the manufacturer mode without reset */
1344 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1347 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1348 hdev->name, PTR_ERR(skb));
1349 return PTR_ERR(skb);
1353 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1356 exit_mfg_deactivate:
1357 release_firmware(fw);
1359 /* Patching failed. Disable the manufacturer mode with reset and
1360 * deactivate the downloaded firmware patches.
1362 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1363 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1365 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1366 hdev->name, PTR_ERR(skb));
1367 return PTR_ERR(skb);
1371 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1377 static int btusb_probe(struct usb_interface *intf,
1378 const struct usb_device_id *id)
1380 struct usb_endpoint_descriptor *ep_desc;
1381 struct btusb_data *data;
1382 struct hci_dev *hdev;
1385 BT_DBG("intf %p id %p", intf, id);
1387 /* interface numbers are hardcoded in the spec */
1388 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1391 if (!id->driver_info) {
1392 const struct usb_device_id *match;
1393 match = usb_match_id(intf, blacklist_table);
1398 if (id->driver_info == BTUSB_IGNORE)
1401 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1404 if (ignore_csr && id->driver_info & BTUSB_CSR)
1407 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1410 if (id->driver_info & BTUSB_ATH3012) {
1411 struct usb_device *udev = interface_to_usbdev(intf);
1413 /* Old firmware would otherwise let ath3k driver load
1414 * patch and sysconfig files */
1415 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1419 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1423 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1424 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1426 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1427 data->intr_ep = ep_desc;
1431 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1432 data->bulk_tx_ep = ep_desc;
1436 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1437 data->bulk_rx_ep = ep_desc;
1442 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1445 data->cmdreq_type = USB_TYPE_CLASS;
1447 data->udev = interface_to_usbdev(intf);
1450 spin_lock_init(&data->lock);
1452 INIT_WORK(&data->work, btusb_work);
1453 INIT_WORK(&data->waker, btusb_waker);
1454 spin_lock_init(&data->txlock);
1456 init_usb_anchor(&data->tx_anchor);
1457 init_usb_anchor(&data->intr_anchor);
1458 init_usb_anchor(&data->bulk_anchor);
1459 init_usb_anchor(&data->isoc_anchor);
1460 init_usb_anchor(&data->deferred);
1462 hdev = hci_alloc_dev();
1466 hdev->bus = HCI_USB;
1467 hci_set_drvdata(hdev, data);
1471 SET_HCIDEV_DEV(hdev, &intf->dev);
1473 hdev->open = btusb_open;
1474 hdev->close = btusb_close;
1475 hdev->flush = btusb_flush;
1476 hdev->send = btusb_send_frame;
1477 hdev->notify = btusb_notify;
1479 if (id->driver_info & BTUSB_BCM92035)
1480 hdev->setup = btusb_setup_bcm92035;
1482 if (id->driver_info & BTUSB_INTEL) {
1483 usb_enable_autosuspend(data->udev);
1484 hdev->setup = btusb_setup_intel;
1487 /* Interface numbers are hardcoded in the specification */
1488 data->isoc = usb_ifnum_to_if(data->udev, 1);
1491 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1493 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1494 if (!disable_scofix)
1495 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1498 if (id->driver_info & BTUSB_BROKEN_ISOC)
1501 if (id->driver_info & BTUSB_DIGIANSWER) {
1502 data->cmdreq_type = USB_TYPE_VENDOR;
1503 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1506 if (id->driver_info & BTUSB_CSR) {
1507 struct usb_device *udev = data->udev;
1508 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
1510 /* Old firmware would otherwise execute USB reset */
1511 if (bcdDevice < 0x117)
1512 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1514 /* Fake CSR devices with broken commands */
1515 if (bcdDevice <= 0x100)
1516 hdev->setup = btusb_setup_csr;
1519 if (id->driver_info & BTUSB_SNIFFER) {
1520 struct usb_device *udev = data->udev;
1522 /* New sniffer firmware has crippled HCI interface */
1523 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1524 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1530 err = usb_driver_claim_interface(&btusb_driver,
1538 err = hci_register_dev(hdev);
1544 usb_set_intfdata(intf, data);
1549 static void btusb_disconnect(struct usb_interface *intf)
1551 struct btusb_data *data = usb_get_intfdata(intf);
1552 struct hci_dev *hdev;
1554 BT_DBG("intf %p", intf);
1560 usb_set_intfdata(data->intf, NULL);
1563 usb_set_intfdata(data->isoc, NULL);
1565 hci_unregister_dev(hdev);
1567 if (intf == data->isoc)
1568 usb_driver_release_interface(&btusb_driver, data->intf);
1569 else if (data->isoc)
1570 usb_driver_release_interface(&btusb_driver, data->isoc);
1576 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1578 struct btusb_data *data = usb_get_intfdata(intf);
1580 BT_DBG("intf %p", intf);
1582 if (data->suspend_count++)
1585 spin_lock_irq(&data->txlock);
1586 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1587 set_bit(BTUSB_SUSPENDING, &data->flags);
1588 spin_unlock_irq(&data->txlock);
1590 spin_unlock_irq(&data->txlock);
1591 data->suspend_count--;
1595 cancel_work_sync(&data->work);
1597 btusb_stop_traffic(data);
1598 usb_kill_anchored_urbs(&data->tx_anchor);
1603 static void play_deferred(struct btusb_data *data)
1608 while ((urb = usb_get_from_anchor(&data->deferred))) {
1609 err = usb_submit_urb(urb, GFP_ATOMIC);
1613 data->tx_in_flight++;
1615 usb_scuttle_anchored_urbs(&data->deferred);
1618 static int btusb_resume(struct usb_interface *intf)
1620 struct btusb_data *data = usb_get_intfdata(intf);
1621 struct hci_dev *hdev = data->hdev;
1624 BT_DBG("intf %p", intf);
1626 if (--data->suspend_count)
1629 if (!test_bit(HCI_RUNNING, &hdev->flags))
1632 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1633 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1635 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1640 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1641 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1643 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1647 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1650 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1651 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1652 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1654 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1657 spin_lock_irq(&data->txlock);
1658 play_deferred(data);
1659 clear_bit(BTUSB_SUSPENDING, &data->flags);
1660 spin_unlock_irq(&data->txlock);
1661 schedule_work(&data->work);
1666 usb_scuttle_anchored_urbs(&data->deferred);
1668 spin_lock_irq(&data->txlock);
1669 clear_bit(BTUSB_SUSPENDING, &data->flags);
1670 spin_unlock_irq(&data->txlock);
1676 static struct usb_driver btusb_driver = {
1678 .probe = btusb_probe,
1679 .disconnect = btusb_disconnect,
1681 .suspend = btusb_suspend,
1682 .resume = btusb_resume,
1684 .id_table = btusb_table,
1685 .supports_autosuspend = 1,
1686 .disable_hub_initiated_lpm = 1,
1689 module_usb_driver(btusb_driver);
1691 module_param(ignore_dga, bool, 0644);
1692 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1694 module_param(ignore_csr, bool, 0644);
1695 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1697 module_param(ignore_sniffer, bool, 0644);
1698 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1700 module_param(disable_scofix, bool, 0644);
1701 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1703 module_param(force_scofix, bool, 0644);
1704 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1706 module_param(reset, bool, 0644);
1707 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1709 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1710 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1711 MODULE_VERSION(VERSION);
1712 MODULE_LICENSE("GPL");