3 * Generic Bluetooth USB driver
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/types.h>
29 #include <linux/sched.h>
30 #include <linux/errno.h>
31 #include <linux/skbuff.h>
33 #include <linux/usb.h>
35 #include <net/bluetooth/bluetooth.h>
36 #include <net/bluetooth/hci_core.h>
40 static int ignore_dga;
41 static int ignore_csr;
42 static int ignore_sniffer;
43 static int disable_scofix;
44 static int force_scofix;
48 static struct usb_driver btusb_driver;
50 #define BTUSB_IGNORE 0x01
51 #define BTUSB_DIGIANSWER 0x02
52 #define BTUSB_CSR 0x04
53 #define BTUSB_SNIFFER 0x08
54 #define BTUSB_BCM92035 0x10
55 #define BTUSB_BROKEN_ISOC 0x20
56 #define BTUSB_WRONG_SCO_MTU 0x40
57 #define BTUSB_ATH3012 0x80
59 static struct usb_device_id btusb_table[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
63 /* Apple-specific (Broadcom) devices */
64 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
66 /* MediaTek MT76x0E */
67 { USB_DEVICE(0x0e8d, 0x763f) },
69 /* Broadcom SoftSailing reporting vendor specific */
70 { USB_DEVICE(0x0a5c, 0x21e1) },
72 /* Apple MacBookPro 7,1 */
73 { USB_DEVICE(0x05ac, 0x8213) },
76 { USB_DEVICE(0x05ac, 0x8215) },
78 /* Apple MacBookPro6,2 */
79 { USB_DEVICE(0x05ac, 0x8218) },
81 /* Apple MacBookAir3,1, MacBookAir3,2 */
82 { USB_DEVICE(0x05ac, 0x821b) },
84 /* Apple MacBookAir4,1 */
85 { USB_DEVICE(0x05ac, 0x821f) },
87 /* Apple MacBookPro8,2 */
88 { USB_DEVICE(0x05ac, 0x821a) },
90 /* Apple MacMini5,1 */
91 { USB_DEVICE(0x05ac, 0x8281) },
93 /* AVM BlueFRITZ! USB v2.0 */
94 { USB_DEVICE(0x057c, 0x3800) },
96 /* Bluetooth Ultraport Module from IBM */
97 { USB_DEVICE(0x04bf, 0x030a) },
99 /* ALPS Modules with non-standard id */
100 { USB_DEVICE(0x044e, 0x3001) },
101 { USB_DEVICE(0x044e, 0x3002) },
103 /* Ericsson with non-standard id */
104 { USB_DEVICE(0x0bdb, 0x1002) },
106 /* Canyon CN-BTU1 with HID interfaces */
107 { USB_DEVICE(0x0c10, 0x0000) },
109 /* Broadcom BCM20702A0 */
110 { USB_DEVICE(0x0b05, 0x17b5) },
111 { USB_DEVICE(0x0b05, 0x17cb) },
112 { USB_DEVICE(0x04ca, 0x2003) },
113 { USB_DEVICE(0x0489, 0xe042) },
114 { USB_DEVICE(0x413c, 0x8197) },
116 /* Foxconn - Hon Hai */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
119 /*Broadcom devices with vendor specific id */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
122 /* Belkin F8065bf - Broadcom based */
123 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
125 { } /* Terminating entry */
128 MODULE_DEVICE_TABLE(usb, btusb_table);
130 static struct usb_device_id blacklist_table[] = {
131 /* CSR BlueCore devices */
132 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
134 /* Broadcom BCM2033 without firmware */
135 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
137 /* Atheros 3011 with sflash firmware */
138 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
139 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
140 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
141 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
142 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
143 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
145 /* Atheros AR9285 Malbec with sflash firmware */
146 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
148 /* Atheros 3012 with sflash firmware */
149 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x300b), .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 },
174 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
176 /* Atheros AR5BBU12 with sflash firmware */
177 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
179 /* Atheros AR5BBU12 with sflash firmware */
180 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
183 /* Broadcom BCM2035 */
184 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
185 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
186 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
188 /* Broadcom BCM2045 */
189 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
190 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
192 /* IBM/Lenovo ThinkPad with Broadcom chip */
193 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
194 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
196 /* HP laptop with Broadcom chip */
197 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
199 /* Dell laptop with Broadcom chip */
200 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
202 /* Dell Wireless 370 and 410 devices */
203 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
204 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
206 /* Belkin F8T012 and F8T013 devices */
207 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
208 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
210 /* Asus WL-BTD202 device */
211 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
213 /* Kensington Bluetooth USB adapter */
214 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* RTX Telecom based adapters with buggy SCO support */
217 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
218 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
220 /* CONWISE Technology based adapters with buggy SCO support */
221 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
223 /* Digianswer devices */
224 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
225 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
227 /* CSR BlueCore Bluetooth Sniffer */
228 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
230 /* Frontline ComProbe Bluetooth Sniffer */
231 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
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 = hdev->driver_data;
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);
313 } else if (urb->status == -ENOENT) {
314 /* Avoid suspend failed when usb_kill_urb */
318 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
321 usb_mark_last_busy(data->udev);
322 usb_anchor_urb(urb, &data->intr_anchor);
324 err = usb_submit_urb(urb, GFP_ATOMIC);
326 /* -EPERM: urb is being killed;
327 * -ENODEV: device got disconnected */
328 if (err != -EPERM && err != -ENODEV)
329 BT_ERR("%s urb %p failed to resubmit (%d)",
330 hdev->name, urb, -err);
331 usb_unanchor_urb(urb);
335 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
337 struct btusb_data *data = hdev->driver_data;
343 BT_DBG("%s", hdev->name);
348 urb = usb_alloc_urb(0, mem_flags);
352 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
354 buf = kmalloc(size, mem_flags);
360 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
362 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
363 btusb_intr_complete, hdev,
364 data->intr_ep->bInterval);
366 urb->transfer_flags |= URB_FREE_BUFFER;
368 usb_anchor_urb(urb, &data->intr_anchor);
370 err = usb_submit_urb(urb, mem_flags);
372 BT_ERR("%s urb %p submission failed (%d)",
373 hdev->name, urb, -err);
374 usb_unanchor_urb(urb);
382 static void btusb_bulk_complete(struct urb *urb)
384 struct hci_dev *hdev = urb->context;
385 struct btusb_data *data = hdev->driver_data;
388 BT_DBG("%s urb %p status %d count %d", hdev->name,
389 urb, urb->status, urb->actual_length);
391 if (!test_bit(HCI_RUNNING, &hdev->flags))
394 if (urb->status == 0) {
395 hdev->stat.byte_rx += urb->actual_length;
397 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
398 urb->transfer_buffer,
399 urb->actual_length) < 0) {
400 BT_ERR("%s corrupted ACL packet", hdev->name);
403 } else if (urb->status == -ENOENT) {
404 /* Avoid suspend failed when usb_kill_urb */
408 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
411 usb_anchor_urb(urb, &data->bulk_anchor);
412 usb_mark_last_busy(data->udev);
414 err = usb_submit_urb(urb, GFP_ATOMIC);
416 /* -EPERM: urb is being killed;
417 * -ENODEV: device got disconnected */
418 if (err != -EPERM && err != -ENODEV)
419 BT_ERR("%s urb %p failed to resubmit (%d)",
420 hdev->name, urb, -err);
421 usb_unanchor_urb(urb);
425 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
427 struct btusb_data *data = hdev->driver_data;
431 int err, size = HCI_MAX_FRAME_SIZE;
433 BT_DBG("%s", hdev->name);
435 if (!data->bulk_rx_ep)
438 urb = usb_alloc_urb(0, mem_flags);
442 buf = kmalloc(size, mem_flags);
448 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
450 usb_fill_bulk_urb(urb, data->udev, pipe,
451 buf, size, btusb_bulk_complete, hdev);
453 urb->transfer_flags |= URB_FREE_BUFFER;
455 usb_mark_last_busy(data->udev);
456 usb_anchor_urb(urb, &data->bulk_anchor);
458 err = usb_submit_urb(urb, mem_flags);
460 BT_ERR("%s urb %p submission failed (%d)",
461 hdev->name, urb, -err);
462 usb_unanchor_urb(urb);
470 static void btusb_isoc_complete(struct urb *urb)
472 struct hci_dev *hdev = urb->context;
473 struct btusb_data *data = hdev->driver_data;
476 BT_DBG("%s urb %p status %d count %d", hdev->name,
477 urb, urb->status, urb->actual_length);
479 if (!test_bit(HCI_RUNNING, &hdev->flags))
482 if (urb->status == 0) {
483 for (i = 0; i < urb->number_of_packets; i++) {
484 unsigned int offset = urb->iso_frame_desc[i].offset;
485 unsigned int length = urb->iso_frame_desc[i].actual_length;
487 if (urb->iso_frame_desc[i].status)
490 hdev->stat.byte_rx += length;
492 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
493 urb->transfer_buffer + offset,
495 BT_ERR("%s corrupted SCO packet", hdev->name);
499 } else if (urb->status == -ENOENT) {
500 /* Avoid suspend failed when usb_kill_urb */
504 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
507 usb_anchor_urb(urb, &data->isoc_anchor);
509 err = usb_submit_urb(urb, GFP_ATOMIC);
511 /* -EPERM: urb is being killed;
512 * -ENODEV: device got disconnected */
513 if (err != -EPERM && err != -ENODEV)
514 BT_ERR("%s urb %p failed to resubmit (%d)",
515 hdev->name, urb, -err);
516 usb_unanchor_urb(urb);
520 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
524 BT_DBG("len %d mtu %d", len, mtu);
526 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
527 i++, offset += mtu, len -= mtu) {
528 urb->iso_frame_desc[i].offset = offset;
529 urb->iso_frame_desc[i].length = mtu;
532 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
533 urb->iso_frame_desc[i].offset = offset;
534 urb->iso_frame_desc[i].length = len;
538 urb->number_of_packets = i;
541 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
543 struct btusb_data *data = hdev->driver_data;
549 BT_DBG("%s", hdev->name);
551 if (!data->isoc_rx_ep)
554 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
558 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
559 BTUSB_MAX_ISOC_FRAMES;
561 buf = kmalloc(size, mem_flags);
567 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
569 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
570 hdev, data->isoc_rx_ep->bInterval);
572 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
574 __fill_isoc_descriptor(urb, size,
575 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
577 usb_anchor_urb(urb, &data->isoc_anchor);
579 err = usb_submit_urb(urb, mem_flags);
581 BT_ERR("%s urb %p submission failed (%d)",
582 hdev->name, urb, -err);
583 usb_unanchor_urb(urb);
591 static void btusb_tx_complete(struct urb *urb)
593 struct sk_buff *skb = urb->context;
594 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
595 struct btusb_data *data = hdev->driver_data;
597 BT_DBG("%s urb %p status %d count %d", hdev->name,
598 urb, urb->status, urb->actual_length);
600 if (!test_bit(HCI_RUNNING, &hdev->flags))
604 hdev->stat.byte_tx += urb->transfer_buffer_length;
609 spin_lock(&data->txlock);
610 data->tx_in_flight--;
611 spin_unlock(&data->txlock);
613 kfree(urb->setup_packet);
618 static void btusb_isoc_tx_complete(struct urb *urb)
620 struct sk_buff *skb = urb->context;
621 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
623 BT_DBG("%s urb %p status %d count %d", hdev->name,
624 urb, urb->status, urb->actual_length);
626 if (!test_bit(HCI_RUNNING, &hdev->flags))
630 hdev->stat.byte_tx += urb->transfer_buffer_length;
635 kfree(urb->setup_packet);
640 static int btusb_open(struct hci_dev *hdev)
642 struct btusb_data *data = hdev->driver_data;
645 BT_DBG("%s", hdev->name);
647 err = usb_autopm_get_interface(data->intf);
651 data->intf->needs_remote_wakeup = 1;
653 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
656 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
659 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
663 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
665 usb_kill_anchored_urbs(&data->intr_anchor);
669 set_bit(BTUSB_BULK_RUNNING, &data->flags);
670 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
673 usb_autopm_put_interface(data->intf);
677 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
678 clear_bit(HCI_RUNNING, &hdev->flags);
679 usb_autopm_put_interface(data->intf);
683 static void btusb_stop_traffic(struct btusb_data *data)
685 usb_kill_anchored_urbs(&data->intr_anchor);
686 usb_kill_anchored_urbs(&data->bulk_anchor);
687 usb_kill_anchored_urbs(&data->isoc_anchor);
690 static int btusb_close(struct hci_dev *hdev)
692 struct btusb_data *data = hdev->driver_data;
695 BT_DBG("%s", hdev->name);
697 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
700 cancel_work_sync(&data->work);
701 cancel_work_sync(&data->waker);
703 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
704 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
705 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
707 btusb_stop_traffic(data);
708 err = usb_autopm_get_interface(data->intf);
712 data->intf->needs_remote_wakeup = 0;
713 usb_autopm_put_interface(data->intf);
716 usb_scuttle_anchored_urbs(&data->deferred);
720 static int btusb_flush(struct hci_dev *hdev)
722 struct btusb_data *data = hdev->driver_data;
724 BT_DBG("%s", hdev->name);
726 usb_kill_anchored_urbs(&data->tx_anchor);
731 static int btusb_send_frame(struct sk_buff *skb)
733 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
734 struct btusb_data *data = hdev->driver_data;
735 struct usb_ctrlrequest *dr;
740 BT_DBG("%s", hdev->name);
742 if (!test_bit(HCI_RUNNING, &hdev->flags))
745 switch (bt_cb(skb)->pkt_type) {
746 case HCI_COMMAND_PKT:
747 urb = usb_alloc_urb(0, GFP_ATOMIC);
751 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
757 dr->bRequestType = data->cmdreq_type;
761 dr->wLength = __cpu_to_le16(skb->len);
763 pipe = usb_sndctrlpipe(data->udev, 0x00);
765 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
766 skb->data, skb->len, btusb_tx_complete, skb);
771 case HCI_ACLDATA_PKT:
772 if (!data->bulk_tx_ep)
775 urb = usb_alloc_urb(0, GFP_ATOMIC);
779 pipe = usb_sndbulkpipe(data->udev,
780 data->bulk_tx_ep->bEndpointAddress);
782 usb_fill_bulk_urb(urb, data->udev, pipe,
783 skb->data, skb->len, btusb_tx_complete, skb);
788 case HCI_SCODATA_PKT:
789 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
792 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
796 pipe = usb_sndisocpipe(data->udev,
797 data->isoc_tx_ep->bEndpointAddress);
799 usb_fill_int_urb(urb, data->udev, pipe,
800 skb->data, skb->len, btusb_isoc_tx_complete,
801 skb, data->isoc_tx_ep->bInterval);
803 urb->transfer_flags = URB_ISO_ASAP;
805 __fill_isoc_descriptor(urb, skb->len,
806 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
817 usb_anchor_urb(urb, &data->deferred);
818 schedule_work(&data->waker);
824 usb_anchor_urb(urb, &data->tx_anchor);
826 err = usb_submit_urb(urb, GFP_ATOMIC);
828 BT_ERR("%s urb %p submission failed", hdev->name, urb);
829 kfree(urb->setup_packet);
830 usb_unanchor_urb(urb);
832 usb_mark_last_busy(data->udev);
840 static void btusb_destruct(struct hci_dev *hdev)
842 struct btusb_data *data = hdev->driver_data;
844 BT_DBG("%s", hdev->name);
849 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
851 struct btusb_data *data = hdev->driver_data;
853 BT_DBG("%s evt %d", hdev->name, evt);
855 if (hdev->conn_hash.sco_num != data->sco_num) {
856 data->sco_num = hdev->conn_hash.sco_num;
857 schedule_work(&data->work);
861 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
863 struct btusb_data *data = hdev->driver_data;
864 struct usb_interface *intf = data->isoc;
865 struct usb_endpoint_descriptor *ep_desc;
871 err = usb_set_interface(data->udev, 1, altsetting);
873 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
877 data->isoc_altsetting = altsetting;
879 data->isoc_tx_ep = NULL;
880 data->isoc_rx_ep = NULL;
882 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
883 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
885 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
886 data->isoc_tx_ep = ep_desc;
890 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
891 data->isoc_rx_ep = ep_desc;
896 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
897 BT_ERR("%s invalid SCO descriptors", hdev->name);
904 static void btusb_work(struct work_struct *work)
906 struct btusb_data *data = container_of(work, struct btusb_data, work);
907 struct hci_dev *hdev = data->hdev;
910 if (hdev->conn_hash.sco_num > 0) {
911 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
912 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
914 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
915 usb_kill_anchored_urbs(&data->isoc_anchor);
919 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
921 if (data->isoc_altsetting != 2) {
922 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
923 usb_kill_anchored_urbs(&data->isoc_anchor);
925 if (__set_isoc_interface(hdev, 2) < 0)
929 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
930 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
931 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
933 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
936 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
937 usb_kill_anchored_urbs(&data->isoc_anchor);
939 __set_isoc_interface(hdev, 0);
940 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
941 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
945 static void btusb_waker(struct work_struct *work)
947 struct btusb_data *data = container_of(work, struct btusb_data, waker);
950 err = usb_autopm_get_interface(data->intf);
954 usb_autopm_put_interface(data->intf);
957 static int btusb_probe(struct usb_interface *intf,
958 const struct usb_device_id *id)
960 struct usb_endpoint_descriptor *ep_desc;
961 struct btusb_data *data;
962 struct hci_dev *hdev;
965 BT_DBG("intf %p id %p", intf, id);
967 /* interface numbers are hardcoded in the spec */
968 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
971 if (!id->driver_info) {
972 const struct usb_device_id *match;
973 match = usb_match_id(intf, blacklist_table);
978 if (id->driver_info == BTUSB_IGNORE)
981 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
984 if (ignore_csr && id->driver_info & BTUSB_CSR)
987 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
990 if (id->driver_info & BTUSB_ATH3012) {
991 struct usb_device *udev = interface_to_usbdev(intf);
993 /* Old firmware would otherwise let ath3k driver load
994 * patch and sysconfig files */
995 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
999 data = kzalloc(sizeof(*data), GFP_KERNEL);
1003 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1004 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1006 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1007 data->intr_ep = ep_desc;
1011 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1012 data->bulk_tx_ep = ep_desc;
1016 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1017 data->bulk_rx_ep = ep_desc;
1022 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1027 data->cmdreq_type = USB_TYPE_CLASS;
1029 data->udev = interface_to_usbdev(intf);
1032 spin_lock_init(&data->lock);
1034 INIT_WORK(&data->work, btusb_work);
1035 INIT_WORK(&data->waker, btusb_waker);
1036 spin_lock_init(&data->txlock);
1038 init_usb_anchor(&data->tx_anchor);
1039 init_usb_anchor(&data->intr_anchor);
1040 init_usb_anchor(&data->bulk_anchor);
1041 init_usb_anchor(&data->isoc_anchor);
1042 init_usb_anchor(&data->deferred);
1044 hdev = hci_alloc_dev();
1050 hdev->bus = HCI_USB;
1051 hdev->driver_data = data;
1055 SET_HCIDEV_DEV(hdev, &intf->dev);
1057 hdev->open = btusb_open;
1058 hdev->close = btusb_close;
1059 hdev->flush = btusb_flush;
1060 hdev->send = btusb_send_frame;
1061 hdev->destruct = btusb_destruct;
1062 hdev->notify = btusb_notify;
1064 hdev->owner = THIS_MODULE;
1066 /* Interface numbers are hardcoded in the specification */
1067 data->isoc = usb_ifnum_to_if(data->udev, 1);
1070 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1072 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1073 if (!disable_scofix)
1074 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1077 if (id->driver_info & BTUSB_BROKEN_ISOC)
1080 if (id->driver_info & BTUSB_DIGIANSWER) {
1081 data->cmdreq_type = USB_TYPE_VENDOR;
1082 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1085 if (id->driver_info & BTUSB_CSR) {
1086 struct usb_device *udev = data->udev;
1088 /* Old firmware would otherwise execute USB reset */
1089 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1090 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1093 if (id->driver_info & BTUSB_SNIFFER) {
1094 struct usb_device *udev = data->udev;
1096 /* New sniffer firmware has crippled HCI interface */
1097 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1098 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1103 if (id->driver_info & BTUSB_BCM92035) {
1104 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1105 struct sk_buff *skb;
1107 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1109 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1110 skb_queue_tail(&hdev->driver_init, skb);
1115 err = usb_driver_claim_interface(&btusb_driver,
1124 err = hci_register_dev(hdev);
1131 usb_set_intfdata(intf, data);
1136 static void btusb_disconnect(struct usb_interface *intf)
1138 struct btusb_data *data = usb_get_intfdata(intf);
1139 struct hci_dev *hdev;
1141 BT_DBG("intf %p", intf);
1148 __hci_dev_hold(hdev);
1150 usb_set_intfdata(data->intf, NULL);
1153 usb_set_intfdata(data->isoc, NULL);
1155 hci_unregister_dev(hdev);
1157 if (intf == data->isoc)
1158 usb_driver_release_interface(&btusb_driver, data->intf);
1159 else if (data->isoc)
1160 usb_driver_release_interface(&btusb_driver, data->isoc);
1162 __hci_dev_put(hdev);
1168 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1170 struct btusb_data *data = usb_get_intfdata(intf);
1172 BT_DBG("intf %p", intf);
1174 if (data->suspend_count++)
1177 spin_lock_irq(&data->txlock);
1178 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1179 set_bit(BTUSB_SUSPENDING, &data->flags);
1180 spin_unlock_irq(&data->txlock);
1182 spin_unlock_irq(&data->txlock);
1183 data->suspend_count--;
1187 cancel_work_sync(&data->work);
1189 btusb_stop_traffic(data);
1190 usb_kill_anchored_urbs(&data->tx_anchor);
1195 static void play_deferred(struct btusb_data *data)
1200 while ((urb = usb_get_from_anchor(&data->deferred))) {
1201 err = usb_submit_urb(urb, GFP_ATOMIC);
1205 data->tx_in_flight++;
1207 usb_scuttle_anchored_urbs(&data->deferred);
1210 static int btusb_resume(struct usb_interface *intf)
1212 struct btusb_data *data = usb_get_intfdata(intf);
1213 struct hci_dev *hdev = data->hdev;
1216 BT_DBG("intf %p", intf);
1218 if (--data->suspend_count)
1221 if (!test_bit(HCI_RUNNING, &hdev->flags))
1224 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1225 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1227 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1232 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1233 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1235 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1239 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1242 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1243 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1244 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1246 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1249 spin_lock_irq(&data->txlock);
1250 play_deferred(data);
1251 clear_bit(BTUSB_SUSPENDING, &data->flags);
1252 spin_unlock_irq(&data->txlock);
1253 schedule_work(&data->work);
1258 usb_scuttle_anchored_urbs(&data->deferred);
1260 spin_lock_irq(&data->txlock);
1261 clear_bit(BTUSB_SUSPENDING, &data->flags);
1262 spin_unlock_irq(&data->txlock);
1268 static struct usb_driver btusb_driver = {
1270 .probe = btusb_probe,
1271 .disconnect = btusb_disconnect,
1273 .suspend = btusb_suspend,
1274 .resume = btusb_resume,
1276 .id_table = btusb_table,
1277 .supports_autosuspend = 1,
1280 static int __init btusb_init(void)
1282 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1284 return usb_register(&btusb_driver);
1287 static void __exit btusb_exit(void)
1289 usb_deregister(&btusb_driver);
1292 module_init(btusb_init);
1293 module_exit(btusb_exit);
1295 module_param(ignore_dga, bool, 0644);
1296 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1298 module_param(ignore_csr, bool, 0644);
1299 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1301 module_param(ignore_sniffer, bool, 0644);
1302 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1304 module_param(disable_scofix, bool, 0644);
1305 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1307 module_param(force_scofix, bool, 0644);
1308 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1310 module_param(reset, bool, 0644);
1311 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1313 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1314 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1315 MODULE_VERSION(VERSION);
1316 MODULE_LICENSE("GPL");