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, 0x311e), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
172 /* Atheros AR5BBU12 with sflash firmware */
173 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
175 /* Atheros AR5BBU12 with sflash firmware */
176 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
179 /* Broadcom BCM2035 */
180 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
181 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
182 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
184 /* Broadcom BCM2045 */
185 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
186 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
188 /* IBM/Lenovo ThinkPad with Broadcom chip */
189 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
190 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
192 /* HP laptop with Broadcom chip */
193 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
195 /* Dell laptop with Broadcom chip */
196 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
198 /* Dell Wireless 370 and 410 devices */
199 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
200 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
202 /* Belkin F8T012 and F8T013 devices */
203 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
204 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
206 /* Asus WL-BTD202 device */
207 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
209 /* Kensington Bluetooth USB adapter */
210 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
212 /* RTX Telecom based adapters with buggy SCO support */
213 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
214 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
216 /* CONWISE Technology based adapters with buggy SCO support */
217 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
219 /* Digianswer devices */
220 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
221 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
223 /* CSR BlueCore Bluetooth Sniffer */
224 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
226 /* Frontline ComProbe Bluetooth Sniffer */
227 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
229 /* Intel Bluetooth device */
230 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
231 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
233 { } /* Terminating entry */
236 #define BTUSB_MAX_ISOC_FRAMES 10
238 #define BTUSB_INTR_RUNNING 0
239 #define BTUSB_BULK_RUNNING 1
240 #define BTUSB_ISOC_RUNNING 2
241 #define BTUSB_SUSPENDING 3
242 #define BTUSB_DID_ISO_RESUME 4
245 struct hci_dev *hdev;
246 struct usb_device *udev;
247 struct usb_interface *intf;
248 struct usb_interface *isoc;
254 struct work_struct work;
255 struct work_struct waker;
257 struct usb_anchor tx_anchor;
258 struct usb_anchor intr_anchor;
259 struct usb_anchor bulk_anchor;
260 struct usb_anchor isoc_anchor;
261 struct usb_anchor deferred;
265 struct usb_endpoint_descriptor *intr_ep;
266 struct usb_endpoint_descriptor *bulk_tx_ep;
267 struct usb_endpoint_descriptor *bulk_rx_ep;
268 struct usb_endpoint_descriptor *isoc_tx_ep;
269 struct usb_endpoint_descriptor *isoc_rx_ep;
273 unsigned int sco_num;
278 static int inc_tx(struct btusb_data *data)
283 spin_lock_irqsave(&data->txlock, flags);
284 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
286 data->tx_in_flight++;
287 spin_unlock_irqrestore(&data->txlock, flags);
292 static void btusb_intr_complete(struct urb *urb)
294 struct hci_dev *hdev = urb->context;
295 struct btusb_data *data = hci_get_drvdata(hdev);
298 BT_DBG("%s urb %p status %d count %d", hdev->name,
299 urb, urb->status, urb->actual_length);
301 if (!test_bit(HCI_RUNNING, &hdev->flags))
304 if (urb->status == 0) {
305 hdev->stat.byte_rx += urb->actual_length;
307 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
308 urb->transfer_buffer,
309 urb->actual_length) < 0) {
310 BT_ERR("%s corrupted event packet", hdev->name);
315 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
318 usb_mark_last_busy(data->udev);
319 usb_anchor_urb(urb, &data->intr_anchor);
321 err = usb_submit_urb(urb, GFP_ATOMIC);
323 /* -EPERM: urb is being killed;
324 * -ENODEV: device got disconnected */
325 if (err != -EPERM && err != -ENODEV)
326 BT_ERR("%s urb %p failed to resubmit (%d)",
327 hdev->name, urb, -err);
328 usb_unanchor_urb(urb);
332 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
334 struct btusb_data *data = hci_get_drvdata(hdev);
340 BT_DBG("%s", hdev->name);
345 urb = usb_alloc_urb(0, mem_flags);
349 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
351 buf = kmalloc(size, mem_flags);
357 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
359 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
360 btusb_intr_complete, hdev,
361 data->intr_ep->bInterval);
363 urb->transfer_flags |= URB_FREE_BUFFER;
365 usb_anchor_urb(urb, &data->intr_anchor);
367 err = usb_submit_urb(urb, mem_flags);
369 if (err != -EPERM && err != -ENODEV)
370 BT_ERR("%s urb %p submission failed (%d)",
371 hdev->name, urb, -err);
372 usb_unanchor_urb(urb);
380 static void btusb_bulk_complete(struct urb *urb)
382 struct hci_dev *hdev = urb->context;
383 struct btusb_data *data = hci_get_drvdata(hdev);
386 BT_DBG("%s urb %p status %d count %d", hdev->name,
387 urb, urb->status, urb->actual_length);
389 if (!test_bit(HCI_RUNNING, &hdev->flags))
392 if (urb->status == 0) {
393 hdev->stat.byte_rx += urb->actual_length;
395 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
396 urb->transfer_buffer,
397 urb->actual_length) < 0) {
398 BT_ERR("%s corrupted ACL packet", hdev->name);
403 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
406 usb_anchor_urb(urb, &data->bulk_anchor);
407 usb_mark_last_busy(data->udev);
409 err = usb_submit_urb(urb, GFP_ATOMIC);
411 /* -EPERM: urb is being killed;
412 * -ENODEV: device got disconnected */
413 if (err != -EPERM && err != -ENODEV)
414 BT_ERR("%s urb %p failed to resubmit (%d)",
415 hdev->name, urb, -err);
416 usb_unanchor_urb(urb);
420 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
422 struct btusb_data *data = hci_get_drvdata(hdev);
426 int err, size = HCI_MAX_FRAME_SIZE;
428 BT_DBG("%s", hdev->name);
430 if (!data->bulk_rx_ep)
433 urb = usb_alloc_urb(0, mem_flags);
437 buf = kmalloc(size, mem_flags);
443 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
445 usb_fill_bulk_urb(urb, data->udev, pipe,
446 buf, size, btusb_bulk_complete, hdev);
448 urb->transfer_flags |= URB_FREE_BUFFER;
450 usb_mark_last_busy(data->udev);
451 usb_anchor_urb(urb, &data->bulk_anchor);
453 err = usb_submit_urb(urb, mem_flags);
455 if (err != -EPERM && err != -ENODEV)
456 BT_ERR("%s urb %p submission failed (%d)",
457 hdev->name, urb, -err);
458 usb_unanchor_urb(urb);
466 static void btusb_isoc_complete(struct urb *urb)
468 struct hci_dev *hdev = urb->context;
469 struct btusb_data *data = hci_get_drvdata(hdev);
472 BT_DBG("%s urb %p status %d count %d", hdev->name,
473 urb, urb->status, urb->actual_length);
475 if (!test_bit(HCI_RUNNING, &hdev->flags))
478 if (urb->status == 0) {
479 for (i = 0; i < urb->number_of_packets; i++) {
480 unsigned int offset = urb->iso_frame_desc[i].offset;
481 unsigned int length = urb->iso_frame_desc[i].actual_length;
483 if (urb->iso_frame_desc[i].status)
486 hdev->stat.byte_rx += length;
488 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
489 urb->transfer_buffer + offset,
491 BT_ERR("%s corrupted SCO packet", hdev->name);
497 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
500 usb_anchor_urb(urb, &data->isoc_anchor);
502 err = usb_submit_urb(urb, GFP_ATOMIC);
504 /* -EPERM: urb is being killed;
505 * -ENODEV: device got disconnected */
506 if (err != -EPERM && err != -ENODEV)
507 BT_ERR("%s urb %p failed to resubmit (%d)",
508 hdev->name, urb, -err);
509 usb_unanchor_urb(urb);
513 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
517 BT_DBG("len %d mtu %d", len, mtu);
519 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
520 i++, offset += mtu, len -= mtu) {
521 urb->iso_frame_desc[i].offset = offset;
522 urb->iso_frame_desc[i].length = mtu;
525 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
526 urb->iso_frame_desc[i].offset = offset;
527 urb->iso_frame_desc[i].length = len;
531 urb->number_of_packets = i;
534 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
536 struct btusb_data *data = hci_get_drvdata(hdev);
542 BT_DBG("%s", hdev->name);
544 if (!data->isoc_rx_ep)
547 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
551 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
552 BTUSB_MAX_ISOC_FRAMES;
554 buf = kmalloc(size, mem_flags);
560 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
562 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
563 hdev, data->isoc_rx_ep->bInterval);
565 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
567 __fill_isoc_descriptor(urb, size,
568 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
570 usb_anchor_urb(urb, &data->isoc_anchor);
572 err = usb_submit_urb(urb, mem_flags);
574 if (err != -EPERM && err != -ENODEV)
575 BT_ERR("%s urb %p submission failed (%d)",
576 hdev->name, urb, -err);
577 usb_unanchor_urb(urb);
585 static void btusb_tx_complete(struct urb *urb)
587 struct sk_buff *skb = urb->context;
588 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
589 struct btusb_data *data = hci_get_drvdata(hdev);
591 BT_DBG("%s urb %p status %d count %d", hdev->name,
592 urb, urb->status, urb->actual_length);
594 if (!test_bit(HCI_RUNNING, &hdev->flags))
598 hdev->stat.byte_tx += urb->transfer_buffer_length;
603 spin_lock(&data->txlock);
604 data->tx_in_flight--;
605 spin_unlock(&data->txlock);
607 kfree(urb->setup_packet);
612 static void btusb_isoc_tx_complete(struct urb *urb)
614 struct sk_buff *skb = urb->context;
615 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
617 BT_DBG("%s urb %p status %d count %d", hdev->name,
618 urb, urb->status, urb->actual_length);
620 if (!test_bit(HCI_RUNNING, &hdev->flags))
624 hdev->stat.byte_tx += urb->transfer_buffer_length;
629 kfree(urb->setup_packet);
634 static int btusb_open(struct hci_dev *hdev)
636 struct btusb_data *data = hci_get_drvdata(hdev);
639 BT_DBG("%s", hdev->name);
641 err = usb_autopm_get_interface(data->intf);
645 data->intf->needs_remote_wakeup = 1;
647 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
650 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
653 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
657 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
659 usb_kill_anchored_urbs(&data->intr_anchor);
663 set_bit(BTUSB_BULK_RUNNING, &data->flags);
664 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
667 usb_autopm_put_interface(data->intf);
671 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
672 clear_bit(HCI_RUNNING, &hdev->flags);
673 usb_autopm_put_interface(data->intf);
677 static void btusb_stop_traffic(struct btusb_data *data)
679 usb_kill_anchored_urbs(&data->intr_anchor);
680 usb_kill_anchored_urbs(&data->bulk_anchor);
681 usb_kill_anchored_urbs(&data->isoc_anchor);
684 static int btusb_close(struct hci_dev *hdev)
686 struct btusb_data *data = hci_get_drvdata(hdev);
689 BT_DBG("%s", hdev->name);
691 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
694 cancel_work_sync(&data->work);
695 cancel_work_sync(&data->waker);
697 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
698 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
699 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
701 btusb_stop_traffic(data);
702 err = usb_autopm_get_interface(data->intf);
706 data->intf->needs_remote_wakeup = 0;
707 usb_autopm_put_interface(data->intf);
710 usb_scuttle_anchored_urbs(&data->deferred);
714 static int btusb_flush(struct hci_dev *hdev)
716 struct btusb_data *data = hci_get_drvdata(hdev);
718 BT_DBG("%s", hdev->name);
720 usb_kill_anchored_urbs(&data->tx_anchor);
725 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
727 struct btusb_data *data = hci_get_drvdata(hdev);
728 struct usb_ctrlrequest *dr;
733 BT_DBG("%s", hdev->name);
735 if (!test_bit(HCI_RUNNING, &hdev->flags))
738 skb->dev = (void *) hdev;
740 switch (bt_cb(skb)->pkt_type) {
741 case HCI_COMMAND_PKT:
742 urb = usb_alloc_urb(0, GFP_ATOMIC);
746 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
752 dr->bRequestType = data->cmdreq_type;
756 dr->wLength = __cpu_to_le16(skb->len);
758 pipe = usb_sndctrlpipe(data->udev, 0x00);
760 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
761 skb->data, skb->len, btusb_tx_complete, skb);
766 case HCI_ACLDATA_PKT:
767 if (!data->bulk_tx_ep)
770 urb = usb_alloc_urb(0, GFP_ATOMIC);
774 pipe = usb_sndbulkpipe(data->udev,
775 data->bulk_tx_ep->bEndpointAddress);
777 usb_fill_bulk_urb(urb, data->udev, pipe,
778 skb->data, skb->len, btusb_tx_complete, skb);
783 case HCI_SCODATA_PKT:
784 if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
787 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
791 pipe = usb_sndisocpipe(data->udev,
792 data->isoc_tx_ep->bEndpointAddress);
794 usb_fill_int_urb(urb, data->udev, pipe,
795 skb->data, skb->len, btusb_isoc_tx_complete,
796 skb, data->isoc_tx_ep->bInterval);
798 urb->transfer_flags = URB_ISO_ASAP;
800 __fill_isoc_descriptor(urb, skb->len,
801 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
812 usb_anchor_urb(urb, &data->deferred);
813 schedule_work(&data->waker);
819 usb_anchor_urb(urb, &data->tx_anchor);
821 err = usb_submit_urb(urb, GFP_ATOMIC);
823 if (err != -EPERM && err != -ENODEV)
824 BT_ERR("%s urb %p submission failed (%d)",
825 hdev->name, urb, -err);
826 kfree(urb->setup_packet);
827 usb_unanchor_urb(urb);
829 usb_mark_last_busy(data->udev);
837 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
839 struct btusb_data *data = hci_get_drvdata(hdev);
841 BT_DBG("%s evt %d", hdev->name, evt);
843 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
844 data->sco_num = hci_conn_num(hdev, SCO_LINK);
845 schedule_work(&data->work);
849 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
851 struct btusb_data *data = hci_get_drvdata(hdev);
852 struct usb_interface *intf = data->isoc;
853 struct usb_endpoint_descriptor *ep_desc;
859 err = usb_set_interface(data->udev, 1, altsetting);
861 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
865 data->isoc_altsetting = altsetting;
867 data->isoc_tx_ep = NULL;
868 data->isoc_rx_ep = NULL;
870 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
871 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
873 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
874 data->isoc_tx_ep = ep_desc;
878 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
879 data->isoc_rx_ep = ep_desc;
884 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
885 BT_ERR("%s invalid SCO descriptors", hdev->name);
892 static void btusb_work(struct work_struct *work)
894 struct btusb_data *data = container_of(work, struct btusb_data, work);
895 struct hci_dev *hdev = data->hdev;
899 if (data->sco_num > 0) {
900 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
901 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
903 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
904 usb_kill_anchored_urbs(&data->isoc_anchor);
908 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
911 if (hdev->voice_setting & 0x0020) {
912 static const int alts[3] = { 2, 4, 5 };
913 new_alts = alts[data->sco_num - 1];
915 new_alts = data->sco_num;
918 if (data->isoc_altsetting != new_alts) {
919 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
920 usb_kill_anchored_urbs(&data->isoc_anchor);
922 if (__set_isoc_interface(hdev, new_alts) < 0)
926 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
927 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
928 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
930 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
933 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
934 usb_kill_anchored_urbs(&data->isoc_anchor);
936 __set_isoc_interface(hdev, 0);
937 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
938 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
942 static void btusb_waker(struct work_struct *work)
944 struct btusb_data *data = container_of(work, struct btusb_data, waker);
947 err = usb_autopm_get_interface(data->intf);
951 usb_autopm_put_interface(data->intf);
954 static int btusb_setup_bcm92035(struct hci_dev *hdev)
959 BT_DBG("%s", hdev->name);
961 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
963 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
970 static int btusb_setup_csr(struct hci_dev *hdev)
972 struct hci_rp_read_local_version *rp;
976 BT_DBG("%s", hdev->name);
978 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
981 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
982 return -PTR_ERR(skb);
985 rp = (struct hci_rp_read_local_version *) skb->data;
988 if (le16_to_cpu(rp->manufacturer) != 10) {
989 /* Clear the reset quirk since this is not an actual
990 * early Bluetooth 1.1 device from CSR.
992 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
994 /* These fake CSR controllers have all a broken
995 * stored link key handling and so just disable it.
997 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1002 ret = -bt_to_errno(rp->status);
1009 struct intel_version {
1022 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1023 struct intel_version *ver)
1025 const struct firmware *fw;
1029 snprintf(fwname, sizeof(fwname),
1030 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1031 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1032 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1033 ver->fw_build_ww, ver->fw_build_yy);
1035 ret = request_firmware(&fw, fwname, &hdev->dev);
1037 if (ret == -EINVAL) {
1038 BT_ERR("%s Intel firmware file request failed (%d)",
1043 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1044 hdev->name, fwname, ret);
1046 /* If the correct firmware patch file is not found, use the
1047 * default firmware patch file instead
1049 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1050 ver->hw_platform, ver->hw_variant);
1051 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1052 BT_ERR("%s failed to open default Intel fw file: %s",
1053 hdev->name, fwname);
1058 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1063 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1064 const struct firmware *fw,
1065 const u8 **fw_ptr, int *disable_patch)
1067 struct sk_buff *skb;
1068 struct hci_command_hdr *cmd;
1069 const u8 *cmd_param;
1070 struct hci_event_hdr *evt = NULL;
1071 const u8 *evt_param = NULL;
1072 int remain = fw->size - (*fw_ptr - fw->data);
1074 /* The first byte indicates the types of the patch command or event.
1075 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1076 * in the current firmware buffer doesn't start with 0x01 or
1077 * the size of remain buffer is smaller than HCI command header,
1078 * the firmware file is corrupted and it should stop the patching
1081 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1082 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1088 cmd = (struct hci_command_hdr *)(*fw_ptr);
1089 *fw_ptr += sizeof(*cmd);
1090 remain -= sizeof(*cmd);
1092 /* Ensure that the remain firmware data is long enough than the length
1093 * of command parameter. If not, the firmware file is corrupted.
1095 if (remain < cmd->plen) {
1096 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1100 /* If there is a command that loads a patch in the firmware
1101 * file, then enable the patch upon success, otherwise just
1102 * disable the manufacturer mode, for example patch activation
1103 * is not required when the default firmware patch file is used
1104 * because there are no patch data to load.
1106 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1109 cmd_param = *fw_ptr;
1110 *fw_ptr += cmd->plen;
1111 remain -= cmd->plen;
1113 /* This reads the expected events when the above command is sent to the
1114 * device. Some vendor commands expects more than one events, for
1115 * example command status event followed by vendor specific event.
1116 * For this case, it only keeps the last expected event. so the command
1117 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1118 * last expected event.
1120 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1124 evt = (struct hci_event_hdr *)(*fw_ptr);
1125 *fw_ptr += sizeof(*evt);
1126 remain -= sizeof(*evt);
1128 if (remain < evt->plen) {
1129 BT_ERR("%s Intel fw corrupted: invalid evt len",
1134 evt_param = *fw_ptr;
1135 *fw_ptr += evt->plen;
1136 remain -= evt->plen;
1139 /* Every HCI commands in the firmware file has its correspond event.
1140 * If event is not found or remain is smaller than zero, the firmware
1141 * file is corrupted.
1143 if (!evt || !evt_param || remain < 0) {
1144 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1148 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1149 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1151 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1152 hdev->name, cmd->opcode, PTR_ERR(skb));
1153 return PTR_ERR(skb);
1156 /* It ensures that the returned event matches the event data read from
1157 * the firmware file. At fist, it checks the length and then
1158 * the contents of the event.
1160 if (skb->len != evt->plen) {
1161 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1162 le16_to_cpu(cmd->opcode));
1167 if (memcmp(skb->data, evt_param, evt->plen)) {
1168 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1169 hdev->name, le16_to_cpu(cmd->opcode));
1178 static int btusb_setup_intel(struct hci_dev *hdev)
1180 struct sk_buff *skb;
1181 const struct firmware *fw;
1184 struct intel_version *ver;
1186 const u8 mfg_enable[] = { 0x01, 0x00 };
1187 const u8 mfg_disable[] = { 0x00, 0x00 };
1188 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1189 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1191 BT_DBG("%s", hdev->name);
1193 /* The controller has a bug with the first HCI command sent to it
1194 * returning number of completed commands as zero. This would stall the
1195 * command processing in the Bluetooth core.
1197 * As a workaround, send HCI Reset command first which will reset the
1198 * number of completed commands and allow normal command processing
1201 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1203 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1204 hdev->name, PTR_ERR(skb));
1205 return PTR_ERR(skb);
1209 /* Read Intel specific controller version first to allow selection of
1210 * which firmware file to load.
1212 * The returned information are hardware variant and revision plus
1213 * firmware variant, revision and build number.
1215 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1217 BT_ERR("%s reading Intel fw version command failed (%ld)",
1218 hdev->name, PTR_ERR(skb));
1219 return PTR_ERR(skb);
1222 if (skb->len != sizeof(*ver)) {
1223 BT_ERR("%s Intel version event length mismatch", hdev->name);
1228 ver = (struct intel_version *)skb->data;
1230 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1233 return -bt_to_errno(ver->status);
1236 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1237 hdev->name, ver->hw_platform, ver->hw_variant,
1238 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1239 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1242 /* fw_patch_num indicates the version of patch the device currently
1243 * have. If there is no patch data in the device, it is always 0x00.
1244 * So, if it is other than 0x00, no need to patch the deivce again.
1246 if (ver->fw_patch_num) {
1247 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1248 hdev->name, ver->fw_patch_num);
1253 /* Opens the firmware patch file based on the firmware version read
1254 * from the controller. If it fails to open the matching firmware
1255 * patch file, it tries to open the default firmware patch file.
1256 * If no patch file is found, allow the device to operate without
1259 fw = btusb_setup_intel_get_fw(hdev, ver);
1266 /* This Intel specific command enables the manufacturer mode of the
1269 * Only while this mode is enabled, the driver can download the
1270 * firmware patch data and configuration parameters.
1272 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1274 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1275 hdev->name, PTR_ERR(skb));
1276 release_firmware(fw);
1277 return PTR_ERR(skb);
1281 u8 evt_status = skb->data[0];
1282 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1283 hdev->name, evt_status);
1285 release_firmware(fw);
1286 return -bt_to_errno(evt_status);
1292 /* The firmware data file consists of list of Intel specific HCI
1293 * commands and its expected events. The first byte indicates the
1294 * type of the message, either HCI command or HCI event.
1296 * It reads the command and its expected event from the firmware file,
1297 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1298 * the returned event is compared with the event read from the firmware
1299 * file and it will continue until all the messages are downloaded to
1302 * Once the firmware patching is completed successfully,
1303 * the manufacturer mode is disabled with reset and activating the
1306 * If the firmware patching fails, the manufacturer mode is
1307 * disabled with reset and deactivating the patch.
1309 * If the default patch file is used, no reset is done when disabling
1312 while (fw->size > fw_ptr - fw->data) {
1315 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1318 goto exit_mfg_deactivate;
1321 release_firmware(fw);
1324 goto exit_mfg_disable;
1326 /* Patching completed successfully and disable the manufacturer mode
1327 * with reset and activate the downloaded firmware patches.
1329 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1330 mfg_reset_activate, HCI_INIT_TIMEOUT);
1332 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1333 hdev->name, PTR_ERR(skb));
1334 return PTR_ERR(skb);
1338 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1344 /* Disable the manufacturer mode without reset */
1345 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1348 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1349 hdev->name, PTR_ERR(skb));
1350 return PTR_ERR(skb);
1354 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1357 exit_mfg_deactivate:
1358 release_firmware(fw);
1360 /* Patching failed. Disable the manufacturer mode with reset and
1361 * deactivate the downloaded firmware patches.
1363 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1364 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1366 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1367 hdev->name, PTR_ERR(skb));
1368 return PTR_ERR(skb);
1372 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1378 static int btusb_probe(struct usb_interface *intf,
1379 const struct usb_device_id *id)
1381 struct usb_endpoint_descriptor *ep_desc;
1382 struct btusb_data *data;
1383 struct hci_dev *hdev;
1386 BT_DBG("intf %p id %p", intf, id);
1388 /* interface numbers are hardcoded in the spec */
1389 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1392 if (!id->driver_info) {
1393 const struct usb_device_id *match;
1394 match = usb_match_id(intf, blacklist_table);
1399 if (id->driver_info == BTUSB_IGNORE)
1402 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1405 if (ignore_csr && id->driver_info & BTUSB_CSR)
1408 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1411 if (id->driver_info & BTUSB_ATH3012) {
1412 struct usb_device *udev = interface_to_usbdev(intf);
1414 /* Old firmware would otherwise let ath3k driver load
1415 * patch and sysconfig files */
1416 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1420 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1424 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1425 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1427 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1428 data->intr_ep = ep_desc;
1432 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1433 data->bulk_tx_ep = ep_desc;
1437 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1438 data->bulk_rx_ep = ep_desc;
1443 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1446 data->cmdreq_type = USB_TYPE_CLASS;
1448 data->udev = interface_to_usbdev(intf);
1451 spin_lock_init(&data->lock);
1453 INIT_WORK(&data->work, btusb_work);
1454 INIT_WORK(&data->waker, btusb_waker);
1455 spin_lock_init(&data->txlock);
1457 init_usb_anchor(&data->tx_anchor);
1458 init_usb_anchor(&data->intr_anchor);
1459 init_usb_anchor(&data->bulk_anchor);
1460 init_usb_anchor(&data->isoc_anchor);
1461 init_usb_anchor(&data->deferred);
1463 hdev = hci_alloc_dev();
1467 hdev->bus = HCI_USB;
1468 hci_set_drvdata(hdev, data);
1472 SET_HCIDEV_DEV(hdev, &intf->dev);
1474 hdev->open = btusb_open;
1475 hdev->close = btusb_close;
1476 hdev->flush = btusb_flush;
1477 hdev->send = btusb_send_frame;
1478 hdev->notify = btusb_notify;
1480 if (id->driver_info & BTUSB_BCM92035)
1481 hdev->setup = btusb_setup_bcm92035;
1483 if (id->driver_info & BTUSB_INTEL) {
1484 usb_enable_autosuspend(data->udev);
1485 hdev->setup = btusb_setup_intel;
1488 /* Interface numbers are hardcoded in the specification */
1489 data->isoc = usb_ifnum_to_if(data->udev, 1);
1492 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1494 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1495 if (!disable_scofix)
1496 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1499 if (id->driver_info & BTUSB_BROKEN_ISOC)
1502 if (id->driver_info & BTUSB_DIGIANSWER) {
1503 data->cmdreq_type = USB_TYPE_VENDOR;
1504 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1507 if (id->driver_info & BTUSB_CSR) {
1508 struct usb_device *udev = data->udev;
1509 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
1511 /* Old firmware would otherwise execute USB reset */
1512 if (bcdDevice < 0x117)
1513 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1515 /* Fake CSR devices with broken commands */
1516 if (bcdDevice <= 0x100)
1517 hdev->setup = btusb_setup_csr;
1520 if (id->driver_info & BTUSB_SNIFFER) {
1521 struct usb_device *udev = data->udev;
1523 /* New sniffer firmware has crippled HCI interface */
1524 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1525 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1531 err = usb_driver_claim_interface(&btusb_driver,
1539 err = hci_register_dev(hdev);
1545 usb_set_intfdata(intf, data);
1550 static void btusb_disconnect(struct usb_interface *intf)
1552 struct btusb_data *data = usb_get_intfdata(intf);
1553 struct hci_dev *hdev;
1555 BT_DBG("intf %p", intf);
1561 usb_set_intfdata(data->intf, NULL);
1564 usb_set_intfdata(data->isoc, NULL);
1566 hci_unregister_dev(hdev);
1568 if (intf == data->isoc)
1569 usb_driver_release_interface(&btusb_driver, data->intf);
1570 else if (data->isoc)
1571 usb_driver_release_interface(&btusb_driver, data->isoc);
1577 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1579 struct btusb_data *data = usb_get_intfdata(intf);
1581 BT_DBG("intf %p", intf);
1583 if (data->suspend_count++)
1586 spin_lock_irq(&data->txlock);
1587 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1588 set_bit(BTUSB_SUSPENDING, &data->flags);
1589 spin_unlock_irq(&data->txlock);
1591 spin_unlock_irq(&data->txlock);
1592 data->suspend_count--;
1596 cancel_work_sync(&data->work);
1598 btusb_stop_traffic(data);
1599 usb_kill_anchored_urbs(&data->tx_anchor);
1604 static void play_deferred(struct btusb_data *data)
1609 while ((urb = usb_get_from_anchor(&data->deferred))) {
1610 err = usb_submit_urb(urb, GFP_ATOMIC);
1614 data->tx_in_flight++;
1616 usb_scuttle_anchored_urbs(&data->deferred);
1619 static int btusb_resume(struct usb_interface *intf)
1621 struct btusb_data *data = usb_get_intfdata(intf);
1622 struct hci_dev *hdev = data->hdev;
1625 BT_DBG("intf %p", intf);
1627 if (--data->suspend_count)
1630 if (!test_bit(HCI_RUNNING, &hdev->flags))
1633 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1634 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1636 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1641 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1642 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1644 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1648 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1651 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1652 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1653 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1655 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1658 spin_lock_irq(&data->txlock);
1659 play_deferred(data);
1660 clear_bit(BTUSB_SUSPENDING, &data->flags);
1661 spin_unlock_irq(&data->txlock);
1662 schedule_work(&data->work);
1667 usb_scuttle_anchored_urbs(&data->deferred);
1669 spin_lock_irq(&data->txlock);
1670 clear_bit(BTUSB_SUSPENDING, &data->flags);
1671 spin_unlock_irq(&data->txlock);
1677 static struct usb_driver btusb_driver = {
1679 .probe = btusb_probe,
1680 .disconnect = btusb_disconnect,
1682 .suspend = btusb_suspend,
1683 .resume = btusb_resume,
1685 .id_table = btusb_table,
1686 .supports_autosuspend = 1,
1687 .disable_hub_initiated_lpm = 1,
1690 module_usb_driver(btusb_driver);
1692 module_param(ignore_dga, bool, 0644);
1693 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1695 module_param(ignore_csr, bool, 0644);
1696 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1698 module_param(ignore_sniffer, bool, 0644);
1699 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1701 module_param(disable_scofix, bool, 0644);
1702 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1704 module_param(force_scofix, bool, 0644);
1705 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1707 module_param(reset, bool, 0644);
1708 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1710 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1711 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1712 MODULE_VERSION(VERSION);
1713 MODULE_LICENSE("GPL");