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
52 #define BTUSB_INTEL_BOOT 0x200
54 static struct usb_device_id btusb_table[] = {
55 /* Generic Bluetooth USB device */
56 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
58 /* Apple-specific (Broadcom) devices */
59 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
61 /* MediaTek MT76x0E */
62 { USB_DEVICE(0x0e8d, 0x763f) },
64 /* Broadcom SoftSailing reporting vendor specific */
65 { USB_DEVICE(0x0a5c, 0x21e1) },
67 /* Apple MacBookPro 7,1 */
68 { USB_DEVICE(0x05ac, 0x8213) },
71 { USB_DEVICE(0x05ac, 0x8215) },
73 /* Apple MacBookPro6,2 */
74 { USB_DEVICE(0x05ac, 0x8218) },
76 /* Apple MacBookAir3,1, MacBookAir3,2 */
77 { USB_DEVICE(0x05ac, 0x821b) },
79 /* Apple MacBookAir4,1 */
80 { USB_DEVICE(0x05ac, 0x821f) },
82 /* Apple MacBookPro8,2 */
83 { USB_DEVICE(0x05ac, 0x821a) },
85 /* Apple MacMini5,1 */
86 { USB_DEVICE(0x05ac, 0x8281) },
88 /* AVM BlueFRITZ! USB v2.0 */
89 { USB_DEVICE(0x057c, 0x3800) },
91 /* Bluetooth Ultraport Module from IBM */
92 { USB_DEVICE(0x04bf, 0x030a) },
94 /* ALPS Modules with non-standard id */
95 { USB_DEVICE(0x044e, 0x3001) },
96 { USB_DEVICE(0x044e, 0x3002) },
98 /* Ericsson with non-standard id */
99 { USB_DEVICE(0x0bdb, 0x1002) },
101 /* Canyon CN-BTU1 with HID interfaces */
102 { USB_DEVICE(0x0c10, 0x0000) },
104 /* Broadcom BCM20702A0 */
105 { USB_DEVICE(0x0b05, 0x17b5) },
106 { USB_DEVICE(0x0b05, 0x17cb) },
107 { USB_DEVICE(0x04ca, 0x2003) },
108 { USB_DEVICE(0x0489, 0xe042) },
109 { USB_DEVICE(0x413c, 0x8197) },
111 /* Foxconn - Hon Hai */
112 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
114 /*Broadcom devices with vendor specific id */
115 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
117 /* IMC Networks - Broadcom based */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
120 /* Intel Bluetooth USB Bootloader (RAM module) */
121 { USB_DEVICE(0x8087, 0x0a5a),
122 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
124 { } /* Terminating entry */
127 MODULE_DEVICE_TABLE(usb, btusb_table);
129 static struct usb_device_id blacklist_table[] = {
130 /* CSR BlueCore devices */
131 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
133 /* Broadcom BCM2033 without firmware */
134 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
136 /* Atheros 3011 with sflash firmware */
137 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
138 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
139 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
140 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
141 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
142 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
144 /* Atheros AR9285 Malbec with sflash firmware */
145 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
147 /* Atheros 3012 with sflash firmware */
148 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
175 /* Atheros AR5BBU12 with sflash firmware */
176 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
178 /* Atheros AR5BBU12 with sflash firmware */
179 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
182 /* Broadcom BCM2035 */
183 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
184 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
185 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
187 /* Broadcom BCM2045 */
188 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
189 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
191 /* IBM/Lenovo ThinkPad with Broadcom chip */
192 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
193 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
195 /* HP laptop with Broadcom chip */
196 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
198 /* Dell laptop with Broadcom chip */
199 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
201 /* Dell Wireless 370 and 410 devices */
202 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
203 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* Belkin F8T012 and F8T013 devices */
206 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
207 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
209 /* Asus WL-BTD202 device */
210 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
212 /* Kensington Bluetooth USB adapter */
213 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
215 /* RTX Telecom based adapters with buggy SCO support */
216 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
217 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
219 /* CONWISE Technology based adapters with buggy SCO support */
220 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
222 /* Digianswer devices */
223 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
224 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
226 /* CSR BlueCore Bluetooth Sniffer */
227 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
229 /* Frontline ComProbe Bluetooth Sniffer */
230 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
232 /* Intel Bluetooth device */
233 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
235 { } /* Terminating entry */
238 #define BTUSB_MAX_ISOC_FRAMES 10
240 #define BTUSB_INTR_RUNNING 0
241 #define BTUSB_BULK_RUNNING 1
242 #define BTUSB_ISOC_RUNNING 2
243 #define BTUSB_SUSPENDING 3
244 #define BTUSB_DID_ISO_RESUME 4
247 struct hci_dev *hdev;
248 struct usb_device *udev;
249 struct usb_interface *intf;
250 struct usb_interface *isoc;
256 struct work_struct work;
257 struct work_struct waker;
259 struct usb_anchor tx_anchor;
260 struct usb_anchor intr_anchor;
261 struct usb_anchor bulk_anchor;
262 struct usb_anchor isoc_anchor;
263 struct usb_anchor deferred;
267 struct usb_endpoint_descriptor *intr_ep;
268 struct usb_endpoint_descriptor *bulk_tx_ep;
269 struct usb_endpoint_descriptor *bulk_rx_ep;
270 struct usb_endpoint_descriptor *isoc_tx_ep;
271 struct usb_endpoint_descriptor *isoc_rx_ep;
275 unsigned int sco_num;
280 static int inc_tx(struct btusb_data *data)
285 spin_lock_irqsave(&data->txlock, flags);
286 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
288 data->tx_in_flight++;
289 spin_unlock_irqrestore(&data->txlock, flags);
294 static void btusb_intr_complete(struct urb *urb)
296 struct hci_dev *hdev = urb->context;
297 struct btusb_data *data = hci_get_drvdata(hdev);
300 BT_DBG("%s urb %p status %d count %d", hdev->name,
301 urb, urb->status, urb->actual_length);
303 if (!test_bit(HCI_RUNNING, &hdev->flags))
306 if (urb->status == 0) {
307 hdev->stat.byte_rx += urb->actual_length;
309 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
310 urb->transfer_buffer,
311 urb->actual_length) < 0) {
312 BT_ERR("%s corrupted event packet", hdev->name);
315 } else if (urb->status == -ENOENT) {
316 /* Avoid suspend failed when usb_kill_urb */
320 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
323 usb_mark_last_busy(data->udev);
324 usb_anchor_urb(urb, &data->intr_anchor);
326 err = usb_submit_urb(urb, GFP_ATOMIC);
328 /* -EPERM: urb is being killed;
329 * -ENODEV: device got disconnected */
330 if (err != -EPERM && err != -ENODEV)
331 BT_ERR("%s urb %p failed to resubmit (%d)",
332 hdev->name, urb, -err);
333 usb_unanchor_urb(urb);
337 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
339 struct btusb_data *data = hci_get_drvdata(hdev);
345 BT_DBG("%s", hdev->name);
350 urb = usb_alloc_urb(0, mem_flags);
354 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
356 buf = kmalloc(size, mem_flags);
362 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
364 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
365 btusb_intr_complete, hdev,
366 data->intr_ep->bInterval);
368 urb->transfer_flags |= URB_FREE_BUFFER;
370 usb_anchor_urb(urb, &data->intr_anchor);
372 err = usb_submit_urb(urb, mem_flags);
374 if (err != -EPERM && err != -ENODEV)
375 BT_ERR("%s urb %p submission failed (%d)",
376 hdev->name, urb, -err);
377 usb_unanchor_urb(urb);
385 static void btusb_bulk_complete(struct urb *urb)
387 struct hci_dev *hdev = urb->context;
388 struct btusb_data *data = hci_get_drvdata(hdev);
391 BT_DBG("%s urb %p status %d count %d", hdev->name,
392 urb, urb->status, urb->actual_length);
394 if (!test_bit(HCI_RUNNING, &hdev->flags))
397 if (urb->status == 0) {
398 hdev->stat.byte_rx += urb->actual_length;
400 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
401 urb->transfer_buffer,
402 urb->actual_length) < 0) {
403 BT_ERR("%s corrupted ACL packet", hdev->name);
406 } else if (urb->status == -ENOENT) {
407 /* Avoid suspend failed when usb_kill_urb */
411 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
414 usb_anchor_urb(urb, &data->bulk_anchor);
415 usb_mark_last_busy(data->udev);
417 err = usb_submit_urb(urb, GFP_ATOMIC);
419 /* -EPERM: urb is being killed;
420 * -ENODEV: device got disconnected */
421 if (err != -EPERM && err != -ENODEV)
422 BT_ERR("%s urb %p failed to resubmit (%d)",
423 hdev->name, urb, -err);
424 usb_unanchor_urb(urb);
428 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
430 struct btusb_data *data = hci_get_drvdata(hdev);
434 int err, size = HCI_MAX_FRAME_SIZE;
436 BT_DBG("%s", hdev->name);
438 if (!data->bulk_rx_ep)
441 urb = usb_alloc_urb(0, mem_flags);
445 buf = kmalloc(size, mem_flags);
451 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
453 usb_fill_bulk_urb(urb, data->udev, pipe,
454 buf, size, btusb_bulk_complete, hdev);
456 urb->transfer_flags |= URB_FREE_BUFFER;
458 usb_mark_last_busy(data->udev);
459 usb_anchor_urb(urb, &data->bulk_anchor);
461 err = usb_submit_urb(urb, mem_flags);
463 if (err != -EPERM && err != -ENODEV)
464 BT_ERR("%s urb %p submission failed (%d)",
465 hdev->name, urb, -err);
466 usb_unanchor_urb(urb);
474 static void btusb_isoc_complete(struct urb *urb)
476 struct hci_dev *hdev = urb->context;
477 struct btusb_data *data = hci_get_drvdata(hdev);
480 BT_DBG("%s urb %p status %d count %d", hdev->name,
481 urb, urb->status, urb->actual_length);
483 if (!test_bit(HCI_RUNNING, &hdev->flags))
486 if (urb->status == 0) {
487 for (i = 0; i < urb->number_of_packets; i++) {
488 unsigned int offset = urb->iso_frame_desc[i].offset;
489 unsigned int length = urb->iso_frame_desc[i].actual_length;
491 if (urb->iso_frame_desc[i].status)
494 hdev->stat.byte_rx += length;
496 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
497 urb->transfer_buffer + offset,
499 BT_ERR("%s corrupted SCO packet", hdev->name);
503 } else if (urb->status == -ENOENT) {
504 /* Avoid suspend failed when usb_kill_urb */
508 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
511 usb_anchor_urb(urb, &data->isoc_anchor);
513 err = usb_submit_urb(urb, GFP_ATOMIC);
515 /* -EPERM: urb is being killed;
516 * -ENODEV: device got disconnected */
517 if (err != -EPERM && err != -ENODEV)
518 BT_ERR("%s urb %p failed to resubmit (%d)",
519 hdev->name, urb, -err);
520 usb_unanchor_urb(urb);
524 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
528 BT_DBG("len %d mtu %d", len, mtu);
530 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
531 i++, offset += mtu, len -= mtu) {
532 urb->iso_frame_desc[i].offset = offset;
533 urb->iso_frame_desc[i].length = mtu;
536 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
537 urb->iso_frame_desc[i].offset = offset;
538 urb->iso_frame_desc[i].length = len;
542 urb->number_of_packets = i;
545 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
547 struct btusb_data *data = hci_get_drvdata(hdev);
553 BT_DBG("%s", hdev->name);
555 if (!data->isoc_rx_ep)
558 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
562 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
563 BTUSB_MAX_ISOC_FRAMES;
565 buf = kmalloc(size, mem_flags);
571 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
573 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
574 hdev, data->isoc_rx_ep->bInterval);
576 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
578 __fill_isoc_descriptor(urb, size,
579 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
581 usb_anchor_urb(urb, &data->isoc_anchor);
583 err = usb_submit_urb(urb, mem_flags);
585 if (err != -EPERM && err != -ENODEV)
586 BT_ERR("%s urb %p submission failed (%d)",
587 hdev->name, urb, -err);
588 usb_unanchor_urb(urb);
596 static void btusb_tx_complete(struct urb *urb)
598 struct sk_buff *skb = urb->context;
599 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
600 struct btusb_data *data = hci_get_drvdata(hdev);
602 BT_DBG("%s urb %p status %d count %d", hdev->name,
603 urb, urb->status, urb->actual_length);
605 if (!test_bit(HCI_RUNNING, &hdev->flags))
609 hdev->stat.byte_tx += urb->transfer_buffer_length;
614 spin_lock(&data->txlock);
615 data->tx_in_flight--;
616 spin_unlock(&data->txlock);
618 kfree(urb->setup_packet);
623 static void btusb_isoc_tx_complete(struct urb *urb)
625 struct sk_buff *skb = urb->context;
626 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
628 BT_DBG("%s urb %p status %d count %d", hdev->name,
629 urb, urb->status, urb->actual_length);
631 if (!test_bit(HCI_RUNNING, &hdev->flags))
635 hdev->stat.byte_tx += urb->transfer_buffer_length;
640 kfree(urb->setup_packet);
645 static int btusb_open(struct hci_dev *hdev)
647 struct btusb_data *data = hci_get_drvdata(hdev);
650 BT_DBG("%s", hdev->name);
652 err = usb_autopm_get_interface(data->intf);
656 data->intf->needs_remote_wakeup = 1;
658 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
661 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
664 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
668 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
670 usb_kill_anchored_urbs(&data->intr_anchor);
674 set_bit(BTUSB_BULK_RUNNING, &data->flags);
675 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
678 usb_autopm_put_interface(data->intf);
682 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
683 clear_bit(HCI_RUNNING, &hdev->flags);
684 usb_autopm_put_interface(data->intf);
688 static void btusb_stop_traffic(struct btusb_data *data)
690 usb_kill_anchored_urbs(&data->intr_anchor);
691 usb_kill_anchored_urbs(&data->bulk_anchor);
692 usb_kill_anchored_urbs(&data->isoc_anchor);
695 static int btusb_close(struct hci_dev *hdev)
697 struct btusb_data *data = hci_get_drvdata(hdev);
700 BT_DBG("%s", hdev->name);
702 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
705 cancel_work_sync(&data->work);
706 cancel_work_sync(&data->waker);
708 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
709 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
710 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
712 btusb_stop_traffic(data);
713 err = usb_autopm_get_interface(data->intf);
717 data->intf->needs_remote_wakeup = 0;
718 usb_autopm_put_interface(data->intf);
721 usb_scuttle_anchored_urbs(&data->deferred);
725 static int btusb_flush(struct hci_dev *hdev)
727 struct btusb_data *data = hci_get_drvdata(hdev);
729 BT_DBG("%s", hdev->name);
731 usb_kill_anchored_urbs(&data->tx_anchor);
736 static int btusb_send_frame(struct sk_buff *skb)
738 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
739 struct btusb_data *data = hci_get_drvdata(hdev);
740 struct usb_ctrlrequest *dr;
745 BT_DBG("%s", hdev->name);
747 if (!test_bit(HCI_RUNNING, &hdev->flags))
750 switch (bt_cb(skb)->pkt_type) {
751 case HCI_COMMAND_PKT:
752 urb = usb_alloc_urb(0, GFP_ATOMIC);
756 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
762 dr->bRequestType = data->cmdreq_type;
766 dr->wLength = __cpu_to_le16(skb->len);
768 pipe = usb_sndctrlpipe(data->udev, 0x00);
770 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
771 skb->data, skb->len, btusb_tx_complete, skb);
776 case HCI_ACLDATA_PKT:
777 if (!data->bulk_tx_ep)
780 urb = usb_alloc_urb(0, GFP_ATOMIC);
784 pipe = usb_sndbulkpipe(data->udev,
785 data->bulk_tx_ep->bEndpointAddress);
787 usb_fill_bulk_urb(urb, data->udev, pipe,
788 skb->data, skb->len, btusb_tx_complete, skb);
793 case HCI_SCODATA_PKT:
794 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
797 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
801 pipe = usb_sndisocpipe(data->udev,
802 data->isoc_tx_ep->bEndpointAddress);
804 usb_fill_int_urb(urb, data->udev, pipe,
805 skb->data, skb->len, btusb_isoc_tx_complete,
806 skb, data->isoc_tx_ep->bInterval);
808 urb->transfer_flags = URB_ISO_ASAP;
810 __fill_isoc_descriptor(urb, skb->len,
811 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
822 usb_anchor_urb(urb, &data->deferred);
823 schedule_work(&data->waker);
829 usb_anchor_urb(urb, &data->tx_anchor);
831 err = usb_submit_urb(urb, GFP_ATOMIC);
833 if (err != -EPERM && err != -ENODEV)
834 BT_ERR("%s urb %p submission failed (%d)",
835 hdev->name, urb, -err);
836 kfree(urb->setup_packet);
837 usb_unanchor_urb(urb);
839 usb_mark_last_busy(data->udev);
847 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
849 struct btusb_data *data = hci_get_drvdata(hdev);
851 BT_DBG("%s evt %d", hdev->name, evt);
853 if (hdev->conn_hash.sco_num != data->sco_num) {
854 data->sco_num = hdev->conn_hash.sco_num;
855 schedule_work(&data->work);
859 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
861 struct btusb_data *data = hci_get_drvdata(hdev);
862 struct usb_interface *intf = data->isoc;
863 struct usb_endpoint_descriptor *ep_desc;
869 err = usb_set_interface(data->udev, 1, altsetting);
871 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
875 data->isoc_altsetting = altsetting;
877 data->isoc_tx_ep = NULL;
878 data->isoc_rx_ep = NULL;
880 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
881 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
883 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
884 data->isoc_tx_ep = ep_desc;
888 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
889 data->isoc_rx_ep = ep_desc;
894 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
895 BT_ERR("%s invalid SCO descriptors", hdev->name);
902 static void btusb_work(struct work_struct *work)
904 struct btusb_data *data = container_of(work, struct btusb_data, work);
905 struct hci_dev *hdev = data->hdev;
909 if (hdev->conn_hash.sco_num > 0) {
910 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
911 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
913 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
914 usb_kill_anchored_urbs(&data->isoc_anchor);
918 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
921 if (hdev->voice_setting & 0x0020) {
922 static const int alts[3] = { 2, 4, 5 };
923 new_alts = alts[hdev->conn_hash.sco_num - 1];
925 new_alts = hdev->conn_hash.sco_num;
928 if (data->isoc_altsetting != new_alts) {
929 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
930 usb_kill_anchored_urbs(&data->isoc_anchor);
932 if (__set_isoc_interface(hdev, new_alts) < 0)
936 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
937 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
938 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
940 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
943 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
944 usb_kill_anchored_urbs(&data->isoc_anchor);
946 __set_isoc_interface(hdev, 0);
947 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
948 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
952 static void btusb_waker(struct work_struct *work)
954 struct btusb_data *data = container_of(work, struct btusb_data, waker);
957 err = usb_autopm_get_interface(data->intf);
961 usb_autopm_put_interface(data->intf);
964 static int btusb_setup_bcm92035(struct hci_dev *hdev)
969 BT_DBG("%s", hdev->name);
971 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
973 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
980 struct intel_version {
993 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
994 struct intel_version *ver)
996 const struct firmware *fw;
1000 snprintf(fwname, sizeof(fwname),
1001 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1002 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1003 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1004 ver->fw_build_ww, ver->fw_build_yy);
1006 ret = request_firmware(&fw, fwname, &hdev->dev);
1008 if (ret == -EINVAL) {
1009 BT_ERR("%s Intel firmware file request failed (%d)",
1014 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1015 hdev->name, fwname, ret);
1017 /* If the correct firmware patch file is not found, use the
1018 * default firmware patch file instead
1020 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1021 ver->hw_platform, ver->hw_variant);
1022 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1023 BT_ERR("%s failed to open default Intel fw file: %s",
1024 hdev->name, fwname);
1029 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1034 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1035 const struct firmware *fw,
1036 const u8 **fw_ptr, int *disable_patch)
1038 struct sk_buff *skb;
1039 struct hci_command_hdr *cmd;
1040 const u8 *cmd_param;
1041 struct hci_event_hdr *evt = NULL;
1042 const u8 *evt_param = NULL;
1043 int remain = fw->size - (*fw_ptr - fw->data);
1045 /* The first byte indicates the types of the patch command or event.
1046 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1047 * in the current firmware buffer doesn't start with 0x01 or
1048 * the size of remain buffer is smaller than HCI command header,
1049 * the firmware file is corrupted and it should stop the patching
1052 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1053 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1059 cmd = (struct hci_command_hdr *)(*fw_ptr);
1060 *fw_ptr += sizeof(*cmd);
1061 remain -= sizeof(*cmd);
1063 /* Ensure that the remain firmware data is long enough than the length
1064 * of command parameter. If not, the firmware file is corrupted.
1066 if (remain < cmd->plen) {
1067 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1071 /* If there is a command that loads a patch in the firmware
1072 * file, then enable the patch upon success, otherwise just
1073 * disable the manufacturer mode, for example patch activation
1074 * is not required when the default firmware patch file is used
1075 * because there are no patch data to load.
1077 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1080 cmd_param = *fw_ptr;
1081 *fw_ptr += cmd->plen;
1082 remain -= cmd->plen;
1084 /* This reads the expected events when the above command is sent to the
1085 * device. Some vendor commands expects more than one events, for
1086 * example command status event followed by vendor specific event.
1087 * For this case, it only keeps the last expected event. so the command
1088 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1089 * last expected event.
1091 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1095 evt = (struct hci_event_hdr *)(*fw_ptr);
1096 *fw_ptr += sizeof(*evt);
1097 remain -= sizeof(*evt);
1099 if (remain < evt->plen) {
1100 BT_ERR("%s Intel fw corrupted: invalid evt len",
1105 evt_param = *fw_ptr;
1106 *fw_ptr += evt->plen;
1107 remain -= evt->plen;
1110 /* Every HCI commands in the firmware file has its correspond event.
1111 * If event is not found or remain is smaller than zero, the firmware
1112 * file is corrupted.
1114 if (!evt || !evt_param || remain < 0) {
1115 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1119 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1120 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1122 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1123 hdev->name, cmd->opcode, PTR_ERR(skb));
1124 return PTR_ERR(skb);
1127 /* It ensures that the returned event matches the event data read from
1128 * the firmware file. At fist, it checks the length and then
1129 * the contents of the event.
1131 if (skb->len != evt->plen) {
1132 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1133 le16_to_cpu(cmd->opcode));
1138 if (memcmp(skb->data, evt_param, evt->plen)) {
1139 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1140 hdev->name, le16_to_cpu(cmd->opcode));
1149 static int btusb_setup_intel(struct hci_dev *hdev)
1151 struct sk_buff *skb;
1152 const struct firmware *fw;
1155 struct intel_version *ver;
1157 const u8 mfg_enable[] = { 0x01, 0x00 };
1158 const u8 mfg_disable[] = { 0x00, 0x00 };
1159 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1160 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1162 BT_DBG("%s", hdev->name);
1164 /* The controller has a bug with the first HCI command sent to it
1165 * returning number of completed commands as zero. This would stall the
1166 * command processing in the Bluetooth core.
1168 * As a workaround, send HCI Reset command first which will reset the
1169 * number of completed commands and allow normal command processing
1172 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1174 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1175 hdev->name, PTR_ERR(skb));
1176 return PTR_ERR(skb);
1180 /* Read Intel specific controller version first to allow selection of
1181 * which firmware file to load.
1183 * The returned information are hardware variant and revision plus
1184 * firmware variant, revision and build number.
1186 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1188 BT_ERR("%s reading Intel fw version command failed (%ld)",
1189 hdev->name, PTR_ERR(skb));
1190 return PTR_ERR(skb);
1193 if (skb->len != sizeof(*ver)) {
1194 BT_ERR("%s Intel version event length mismatch", hdev->name);
1199 ver = (struct intel_version *)skb->data;
1201 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1204 return -bt_to_errno(ver->status);
1207 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1208 hdev->name, ver->hw_platform, ver->hw_variant,
1209 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1210 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1213 /* fw_patch_num indicates the version of patch the device currently
1214 * have. If there is no patch data in the device, it is always 0x00.
1215 * So, if it is other than 0x00, no need to patch the deivce again.
1217 if (ver->fw_patch_num) {
1218 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1219 hdev->name, ver->fw_patch_num);
1224 /* Opens the firmware patch file based on the firmware version read
1225 * from the controller. If it fails to open the matching firmware
1226 * patch file, it tries to open the default firmware patch file.
1227 * If no patch file is found, allow the device to operate without
1230 fw = btusb_setup_intel_get_fw(hdev, ver);
1237 /* This Intel specific command enables the manufacturer mode of the
1240 * Only while this mode is enabled, the driver can download the
1241 * firmware patch data and configuration parameters.
1243 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1245 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1246 hdev->name, PTR_ERR(skb));
1247 release_firmware(fw);
1248 return PTR_ERR(skb);
1252 u8 evt_status = skb->data[0];
1253 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1254 hdev->name, evt_status);
1256 release_firmware(fw);
1257 return -bt_to_errno(evt_status);
1263 /* The firmware data file consists of list of Intel specific HCI
1264 * commands and its expected events. The first byte indicates the
1265 * type of the message, either HCI command or HCI event.
1267 * It reads the command and its expected event from the firmware file,
1268 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1269 * the returned event is compared with the event read from the firmware
1270 * file and it will continue until all the messages are downloaded to
1273 * Once the firmware patching is completed successfully,
1274 * the manufacturer mode is disabled with reset and activating the
1277 * If the firmware patching fails, the manufacturer mode is
1278 * disabled with reset and deactivating the patch.
1280 * If the default patch file is used, no reset is done when disabling
1283 while (fw->size > fw_ptr - fw->data) {
1286 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1289 goto exit_mfg_deactivate;
1292 release_firmware(fw);
1295 goto exit_mfg_disable;
1297 /* Patching completed successfully and disable the manufacturer mode
1298 * with reset and activate the downloaded firmware patches.
1300 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1301 mfg_reset_activate, HCI_INIT_TIMEOUT);
1303 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1304 hdev->name, PTR_ERR(skb));
1305 return PTR_ERR(skb);
1309 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1315 /* Disable the manufacturer mode without reset */
1316 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1319 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1320 hdev->name, PTR_ERR(skb));
1321 return PTR_ERR(skb);
1325 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1328 exit_mfg_deactivate:
1329 release_firmware(fw);
1331 /* Patching failed. Disable the manufacturer mode with reset and
1332 * deactivate the downloaded firmware patches.
1334 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1335 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1337 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1338 hdev->name, PTR_ERR(skb));
1339 return PTR_ERR(skb);
1343 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1349 static int btusb_probe(struct usb_interface *intf,
1350 const struct usb_device_id *id)
1352 struct usb_endpoint_descriptor *ep_desc;
1353 struct btusb_data *data;
1354 struct hci_dev *hdev;
1357 BT_DBG("intf %p id %p", intf, id);
1359 /* interface numbers are hardcoded in the spec */
1360 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1363 if (!id->driver_info) {
1364 const struct usb_device_id *match;
1365 match = usb_match_id(intf, blacklist_table);
1370 if (id->driver_info == BTUSB_IGNORE)
1373 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1376 if (ignore_csr && id->driver_info & BTUSB_CSR)
1379 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1382 if (id->driver_info & BTUSB_ATH3012) {
1383 struct usb_device *udev = interface_to_usbdev(intf);
1385 /* Old firmware would otherwise let ath3k driver load
1386 * patch and sysconfig files */
1387 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1391 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1395 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1396 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1398 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1399 data->intr_ep = ep_desc;
1403 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1404 data->bulk_tx_ep = ep_desc;
1408 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1409 data->bulk_rx_ep = ep_desc;
1414 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1417 data->cmdreq_type = USB_TYPE_CLASS;
1419 data->udev = interface_to_usbdev(intf);
1422 spin_lock_init(&data->lock);
1424 INIT_WORK(&data->work, btusb_work);
1425 INIT_WORK(&data->waker, btusb_waker);
1426 spin_lock_init(&data->txlock);
1428 init_usb_anchor(&data->tx_anchor);
1429 init_usb_anchor(&data->intr_anchor);
1430 init_usb_anchor(&data->bulk_anchor);
1431 init_usb_anchor(&data->isoc_anchor);
1432 init_usb_anchor(&data->deferred);
1434 hdev = hci_alloc_dev();
1438 hdev->bus = HCI_USB;
1439 hci_set_drvdata(hdev, data);
1443 SET_HCIDEV_DEV(hdev, &intf->dev);
1445 hdev->open = btusb_open;
1446 hdev->close = btusb_close;
1447 hdev->flush = btusb_flush;
1448 hdev->send = btusb_send_frame;
1449 hdev->notify = btusb_notify;
1451 if (id->driver_info & BTUSB_BCM92035)
1452 hdev->setup = btusb_setup_bcm92035;
1454 if (id->driver_info & BTUSB_INTEL)
1455 hdev->setup = btusb_setup_intel;
1457 if (id->driver_info & BTUSB_INTEL_BOOT)
1458 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1460 /* Interface numbers are hardcoded in the specification */
1461 data->isoc = usb_ifnum_to_if(data->udev, 1);
1464 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1466 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1467 if (!disable_scofix)
1468 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1471 if (id->driver_info & BTUSB_BROKEN_ISOC)
1474 if (id->driver_info & BTUSB_DIGIANSWER) {
1475 data->cmdreq_type = USB_TYPE_VENDOR;
1476 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1479 if (id->driver_info & BTUSB_CSR) {
1480 struct usb_device *udev = data->udev;
1482 /* Old firmware would otherwise execute USB reset */
1483 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1484 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1487 if (id->driver_info & BTUSB_SNIFFER) {
1488 struct usb_device *udev = data->udev;
1490 /* New sniffer firmware has crippled HCI interface */
1491 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1492 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1498 err = usb_driver_claim_interface(&btusb_driver,
1506 err = hci_register_dev(hdev);
1512 usb_set_intfdata(intf, data);
1517 static void btusb_disconnect(struct usb_interface *intf)
1519 struct btusb_data *data = usb_get_intfdata(intf);
1520 struct hci_dev *hdev;
1522 BT_DBG("intf %p", intf);
1528 usb_set_intfdata(data->intf, NULL);
1531 usb_set_intfdata(data->isoc, NULL);
1533 hci_unregister_dev(hdev);
1535 if (intf == data->isoc)
1536 usb_driver_release_interface(&btusb_driver, data->intf);
1537 else if (data->isoc)
1538 usb_driver_release_interface(&btusb_driver, data->isoc);
1544 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1546 struct btusb_data *data = usb_get_intfdata(intf);
1548 BT_DBG("intf %p", intf);
1550 if (data->suspend_count++)
1553 spin_lock_irq(&data->txlock);
1554 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1555 set_bit(BTUSB_SUSPENDING, &data->flags);
1556 spin_unlock_irq(&data->txlock);
1558 spin_unlock_irq(&data->txlock);
1559 data->suspend_count--;
1563 cancel_work_sync(&data->work);
1565 btusb_stop_traffic(data);
1566 usb_kill_anchored_urbs(&data->tx_anchor);
1571 static void play_deferred(struct btusb_data *data)
1576 while ((urb = usb_get_from_anchor(&data->deferred))) {
1577 err = usb_submit_urb(urb, GFP_ATOMIC);
1581 data->tx_in_flight++;
1583 usb_scuttle_anchored_urbs(&data->deferred);
1586 static int btusb_resume(struct usb_interface *intf)
1588 struct btusb_data *data = usb_get_intfdata(intf);
1589 struct hci_dev *hdev = data->hdev;
1592 BT_DBG("intf %p", intf);
1594 if (--data->suspend_count)
1597 if (!test_bit(HCI_RUNNING, &hdev->flags))
1600 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1601 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1603 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1608 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1609 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1611 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1615 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1618 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1619 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1620 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1622 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1625 spin_lock_irq(&data->txlock);
1626 play_deferred(data);
1627 clear_bit(BTUSB_SUSPENDING, &data->flags);
1628 spin_unlock_irq(&data->txlock);
1629 schedule_work(&data->work);
1634 usb_scuttle_anchored_urbs(&data->deferred);
1636 spin_lock_irq(&data->txlock);
1637 clear_bit(BTUSB_SUSPENDING, &data->flags);
1638 spin_unlock_irq(&data->txlock);
1644 static struct usb_driver btusb_driver = {
1646 .probe = btusb_probe,
1647 .disconnect = btusb_disconnect,
1649 .suspend = btusb_suspend,
1650 .resume = btusb_resume,
1652 .id_table = btusb_table,
1653 .supports_autosuspend = 1,
1654 .disable_hub_initiated_lpm = 1,
1657 module_usb_driver(btusb_driver);
1659 module_param(ignore_dga, bool, 0644);
1660 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1662 module_param(ignore_csr, bool, 0644);
1663 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1665 module_param(ignore_sniffer, bool, 0644);
1666 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1668 module_param(disable_scofix, bool, 0644);
1669 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1671 module_param(force_scofix, bool, 0644);
1672 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1674 module_param(reset, bool, 0644);
1675 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1677 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1678 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1679 MODULE_VERSION(VERSION);
1680 MODULE_LICENSE("GPL");