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, 0x311e), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
179 /* Atheros AR5BBU12 with sflash firmware */
180 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
182 /* Atheros AR5BBU12 with sflash firmware */
183 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
186 /* Broadcom BCM2035 */
187 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
188 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
189 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
191 /* Broadcom BCM2045 */
192 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
193 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
195 /* IBM/Lenovo ThinkPad with Broadcom chip */
196 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
199 /* HP laptop with Broadcom chip */
200 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
202 /* Dell laptop with Broadcom chip */
203 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* Dell Wireless 370 and 410 devices */
206 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
207 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
209 /* Belkin F8T012 and F8T013 devices */
210 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
211 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
213 /* Asus WL-BTD202 device */
214 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* Kensington Bluetooth USB adapter */
217 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
219 /* RTX Telecom based adapters with buggy SCO support */
220 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
221 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
223 /* CONWISE Technology based adapters with buggy SCO support */
224 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
226 /* Digianswer devices */
227 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
228 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
230 /* CSR BlueCore Bluetooth Sniffer */
231 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
233 /* Frontline ComProbe Bluetooth Sniffer */
234 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
236 { } /* Terminating entry */
239 #define BTUSB_MAX_ISOC_FRAMES 10
241 #define BTUSB_INTR_RUNNING 0
242 #define BTUSB_BULK_RUNNING 1
243 #define BTUSB_ISOC_RUNNING 2
244 #define BTUSB_SUSPENDING 3
245 #define BTUSB_DID_ISO_RESUME 4
248 struct hci_dev *hdev;
249 struct usb_device *udev;
250 struct usb_interface *intf;
251 struct usb_interface *isoc;
257 struct work_struct work;
258 struct work_struct waker;
260 struct usb_anchor tx_anchor;
261 struct usb_anchor intr_anchor;
262 struct usb_anchor bulk_anchor;
263 struct usb_anchor isoc_anchor;
264 struct usb_anchor deferred;
268 struct usb_endpoint_descriptor *intr_ep;
269 struct usb_endpoint_descriptor *bulk_tx_ep;
270 struct usb_endpoint_descriptor *bulk_rx_ep;
271 struct usb_endpoint_descriptor *isoc_tx_ep;
272 struct usb_endpoint_descriptor *isoc_rx_ep;
276 unsigned int sco_num;
281 static int inc_tx(struct btusb_data *data)
286 spin_lock_irqsave(&data->txlock, flags);
287 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
289 data->tx_in_flight++;
290 spin_unlock_irqrestore(&data->txlock, flags);
295 static void btusb_intr_complete(struct urb *urb)
297 struct hci_dev *hdev = urb->context;
298 struct btusb_data *data = hdev->driver_data;
301 BT_DBG("%s urb %p status %d count %d", hdev->name,
302 urb, urb->status, urb->actual_length);
304 if (!test_bit(HCI_RUNNING, &hdev->flags))
307 if (urb->status == 0) {
308 hdev->stat.byte_rx += urb->actual_length;
310 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
311 urb->transfer_buffer,
312 urb->actual_length) < 0) {
313 BT_ERR("%s corrupted event packet", hdev->name);
316 } else if (urb->status == -ENOENT) {
317 /* Avoid suspend failed when usb_kill_urb */
321 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
324 usb_mark_last_busy(data->udev);
325 usb_anchor_urb(urb, &data->intr_anchor);
327 err = usb_submit_urb(urb, GFP_ATOMIC);
329 /* -EPERM: urb is being killed;
330 * -ENODEV: device got disconnected */
331 if (err != -EPERM && err != -ENODEV)
332 BT_ERR("%s urb %p failed to resubmit (%d)",
333 hdev->name, urb, -err);
334 usb_unanchor_urb(urb);
338 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
340 struct btusb_data *data = hdev->driver_data;
346 BT_DBG("%s", hdev->name);
351 urb = usb_alloc_urb(0, mem_flags);
355 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
357 buf = kmalloc(size, mem_flags);
363 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
365 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
366 btusb_intr_complete, hdev,
367 data->intr_ep->bInterval);
369 urb->transfer_flags |= URB_FREE_BUFFER;
371 usb_anchor_urb(urb, &data->intr_anchor);
373 err = usb_submit_urb(urb, mem_flags);
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 = hdev->driver_data;
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 = hdev->driver_data;
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 BT_ERR("%s urb %p submission failed (%d)",
464 hdev->name, urb, -err);
465 usb_unanchor_urb(urb);
473 static void btusb_isoc_complete(struct urb *urb)
475 struct hci_dev *hdev = urb->context;
476 struct btusb_data *data = hdev->driver_data;
479 BT_DBG("%s urb %p status %d count %d", hdev->name,
480 urb, urb->status, urb->actual_length);
482 if (!test_bit(HCI_RUNNING, &hdev->flags))
485 if (urb->status == 0) {
486 for (i = 0; i < urb->number_of_packets; i++) {
487 unsigned int offset = urb->iso_frame_desc[i].offset;
488 unsigned int length = urb->iso_frame_desc[i].actual_length;
490 if (urb->iso_frame_desc[i].status)
493 hdev->stat.byte_rx += length;
495 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
496 urb->transfer_buffer + offset,
498 BT_ERR("%s corrupted SCO packet", hdev->name);
502 } else if (urb->status == -ENOENT) {
503 /* Avoid suspend failed when usb_kill_urb */
507 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
510 usb_anchor_urb(urb, &data->isoc_anchor);
512 err = usb_submit_urb(urb, GFP_ATOMIC);
514 /* -EPERM: urb is being killed;
515 * -ENODEV: device got disconnected */
516 if (err != -EPERM && err != -ENODEV)
517 BT_ERR("%s urb %p failed to resubmit (%d)",
518 hdev->name, urb, -err);
519 usb_unanchor_urb(urb);
523 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
527 BT_DBG("len %d mtu %d", len, mtu);
529 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
530 i++, offset += mtu, len -= mtu) {
531 urb->iso_frame_desc[i].offset = offset;
532 urb->iso_frame_desc[i].length = mtu;
535 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
536 urb->iso_frame_desc[i].offset = offset;
537 urb->iso_frame_desc[i].length = len;
541 urb->number_of_packets = i;
544 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
546 struct btusb_data *data = hdev->driver_data;
552 BT_DBG("%s", hdev->name);
554 if (!data->isoc_rx_ep)
557 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
561 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
562 BTUSB_MAX_ISOC_FRAMES;
564 buf = kmalloc(size, mem_flags);
570 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
572 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
573 hdev, data->isoc_rx_ep->bInterval);
575 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
577 __fill_isoc_descriptor(urb, size,
578 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
580 usb_anchor_urb(urb, &data->isoc_anchor);
582 err = usb_submit_urb(urb, mem_flags);
584 BT_ERR("%s urb %p submission failed (%d)",
585 hdev->name, urb, -err);
586 usb_unanchor_urb(urb);
594 static void btusb_tx_complete(struct urb *urb)
596 struct sk_buff *skb = urb->context;
597 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
598 struct btusb_data *data = hdev->driver_data;
600 BT_DBG("%s urb %p status %d count %d", hdev->name,
601 urb, urb->status, urb->actual_length);
603 if (!test_bit(HCI_RUNNING, &hdev->flags))
607 hdev->stat.byte_tx += urb->transfer_buffer_length;
612 spin_lock(&data->txlock);
613 data->tx_in_flight--;
614 spin_unlock(&data->txlock);
616 kfree(urb->setup_packet);
621 static void btusb_isoc_tx_complete(struct urb *urb)
623 struct sk_buff *skb = urb->context;
624 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
626 BT_DBG("%s urb %p status %d count %d", hdev->name,
627 urb, urb->status, urb->actual_length);
629 if (!test_bit(HCI_RUNNING, &hdev->flags))
633 hdev->stat.byte_tx += urb->transfer_buffer_length;
638 kfree(urb->setup_packet);
643 static int btusb_open(struct hci_dev *hdev)
645 struct btusb_data *data = hdev->driver_data;
648 BT_DBG("%s", hdev->name);
650 err = usb_autopm_get_interface(data->intf);
654 data->intf->needs_remote_wakeup = 1;
656 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
659 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
662 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
666 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
668 usb_kill_anchored_urbs(&data->intr_anchor);
672 set_bit(BTUSB_BULK_RUNNING, &data->flags);
673 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
676 usb_autopm_put_interface(data->intf);
680 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
681 clear_bit(HCI_RUNNING, &hdev->flags);
682 usb_autopm_put_interface(data->intf);
686 static void btusb_stop_traffic(struct btusb_data *data)
688 usb_kill_anchored_urbs(&data->intr_anchor);
689 usb_kill_anchored_urbs(&data->bulk_anchor);
690 usb_kill_anchored_urbs(&data->isoc_anchor);
693 static int btusb_close(struct hci_dev *hdev)
695 struct btusb_data *data = hdev->driver_data;
698 BT_DBG("%s", hdev->name);
700 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
703 cancel_work_sync(&data->work);
704 cancel_work_sync(&data->waker);
706 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
707 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
708 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
710 btusb_stop_traffic(data);
711 err = usb_autopm_get_interface(data->intf);
715 data->intf->needs_remote_wakeup = 0;
716 usb_autopm_put_interface(data->intf);
719 usb_scuttle_anchored_urbs(&data->deferred);
723 static int btusb_flush(struct hci_dev *hdev)
725 struct btusb_data *data = hdev->driver_data;
727 BT_DBG("%s", hdev->name);
729 usb_kill_anchored_urbs(&data->tx_anchor);
734 static int btusb_send_frame(struct sk_buff *skb)
736 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
737 struct btusb_data *data = hdev->driver_data;
738 struct usb_ctrlrequest *dr;
743 BT_DBG("%s", hdev->name);
745 if (!test_bit(HCI_RUNNING, &hdev->flags))
748 switch (bt_cb(skb)->pkt_type) {
749 case HCI_COMMAND_PKT:
750 urb = usb_alloc_urb(0, GFP_ATOMIC);
754 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
760 dr->bRequestType = data->cmdreq_type;
764 dr->wLength = __cpu_to_le16(skb->len);
766 pipe = usb_sndctrlpipe(data->udev, 0x00);
768 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
769 skb->data, skb->len, btusb_tx_complete, skb);
774 case HCI_ACLDATA_PKT:
775 if (!data->bulk_tx_ep)
778 urb = usb_alloc_urb(0, GFP_ATOMIC);
782 pipe = usb_sndbulkpipe(data->udev,
783 data->bulk_tx_ep->bEndpointAddress);
785 usb_fill_bulk_urb(urb, data->udev, pipe,
786 skb->data, skb->len, btusb_tx_complete, skb);
791 case HCI_SCODATA_PKT:
792 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
795 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
799 pipe = usb_sndisocpipe(data->udev,
800 data->isoc_tx_ep->bEndpointAddress);
802 usb_fill_int_urb(urb, data->udev, pipe,
803 skb->data, skb->len, btusb_isoc_tx_complete,
804 skb, data->isoc_tx_ep->bInterval);
806 urb->transfer_flags = URB_ISO_ASAP;
808 __fill_isoc_descriptor(urb, skb->len,
809 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
820 usb_anchor_urb(urb, &data->deferred);
821 schedule_work(&data->waker);
827 usb_anchor_urb(urb, &data->tx_anchor);
829 err = usb_submit_urb(urb, GFP_ATOMIC);
831 BT_ERR("%s urb %p submission failed", hdev->name, urb);
832 kfree(urb->setup_packet);
833 usb_unanchor_urb(urb);
835 usb_mark_last_busy(data->udev);
843 static void btusb_destruct(struct hci_dev *hdev)
845 struct btusb_data *data = hdev->driver_data;
847 BT_DBG("%s", hdev->name);
852 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
854 struct btusb_data *data = hdev->driver_data;
856 BT_DBG("%s evt %d", hdev->name, evt);
858 if (hdev->conn_hash.sco_num != data->sco_num) {
859 data->sco_num = hdev->conn_hash.sco_num;
860 schedule_work(&data->work);
864 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
866 struct btusb_data *data = hdev->driver_data;
867 struct usb_interface *intf = data->isoc;
868 struct usb_endpoint_descriptor *ep_desc;
874 err = usb_set_interface(data->udev, 1, altsetting);
876 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
880 data->isoc_altsetting = altsetting;
882 data->isoc_tx_ep = NULL;
883 data->isoc_rx_ep = NULL;
885 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
886 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
888 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
889 data->isoc_tx_ep = ep_desc;
893 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
894 data->isoc_rx_ep = ep_desc;
899 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
900 BT_ERR("%s invalid SCO descriptors", hdev->name);
907 static void btusb_work(struct work_struct *work)
909 struct btusb_data *data = container_of(work, struct btusb_data, work);
910 struct hci_dev *hdev = data->hdev;
913 if (hdev->conn_hash.sco_num > 0) {
914 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
915 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
917 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
918 usb_kill_anchored_urbs(&data->isoc_anchor);
922 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
924 if (data->isoc_altsetting != 2) {
925 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
926 usb_kill_anchored_urbs(&data->isoc_anchor);
928 if (__set_isoc_interface(hdev, 2) < 0)
932 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
933 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
934 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
936 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
939 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
940 usb_kill_anchored_urbs(&data->isoc_anchor);
942 __set_isoc_interface(hdev, 0);
943 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
944 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
948 static void btusb_waker(struct work_struct *work)
950 struct btusb_data *data = container_of(work, struct btusb_data, waker);
953 err = usb_autopm_get_interface(data->intf);
957 usb_autopm_put_interface(data->intf);
960 static int btusb_probe(struct usb_interface *intf,
961 const struct usb_device_id *id)
963 struct usb_endpoint_descriptor *ep_desc;
964 struct btusb_data *data;
965 struct hci_dev *hdev;
968 BT_DBG("intf %p id %p", intf, id);
970 /* interface numbers are hardcoded in the spec */
971 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
974 if (!id->driver_info) {
975 const struct usb_device_id *match;
976 match = usb_match_id(intf, blacklist_table);
981 if (id->driver_info == BTUSB_IGNORE)
984 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
987 if (ignore_csr && id->driver_info & BTUSB_CSR)
990 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
993 if (id->driver_info & BTUSB_ATH3012) {
994 struct usb_device *udev = interface_to_usbdev(intf);
996 /* Old firmware would otherwise let ath3k driver load
997 * patch and sysconfig files */
998 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1002 data = kzalloc(sizeof(*data), GFP_KERNEL);
1006 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1007 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1009 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1010 data->intr_ep = ep_desc;
1014 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1015 data->bulk_tx_ep = ep_desc;
1019 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1020 data->bulk_rx_ep = ep_desc;
1025 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1030 data->cmdreq_type = USB_TYPE_CLASS;
1032 data->udev = interface_to_usbdev(intf);
1035 spin_lock_init(&data->lock);
1037 INIT_WORK(&data->work, btusb_work);
1038 INIT_WORK(&data->waker, btusb_waker);
1039 spin_lock_init(&data->txlock);
1041 init_usb_anchor(&data->tx_anchor);
1042 init_usb_anchor(&data->intr_anchor);
1043 init_usb_anchor(&data->bulk_anchor);
1044 init_usb_anchor(&data->isoc_anchor);
1045 init_usb_anchor(&data->deferred);
1047 hdev = hci_alloc_dev();
1053 hdev->bus = HCI_USB;
1054 hdev->driver_data = data;
1058 SET_HCIDEV_DEV(hdev, &intf->dev);
1060 hdev->open = btusb_open;
1061 hdev->close = btusb_close;
1062 hdev->flush = btusb_flush;
1063 hdev->send = btusb_send_frame;
1064 hdev->destruct = btusb_destruct;
1065 hdev->notify = btusb_notify;
1067 hdev->owner = THIS_MODULE;
1069 /* Interface numbers are hardcoded in the specification */
1070 data->isoc = usb_ifnum_to_if(data->udev, 1);
1073 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1075 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1076 if (!disable_scofix)
1077 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1080 if (id->driver_info & BTUSB_BROKEN_ISOC)
1083 if (id->driver_info & BTUSB_DIGIANSWER) {
1084 data->cmdreq_type = USB_TYPE_VENDOR;
1085 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1088 if (id->driver_info & BTUSB_CSR) {
1089 struct usb_device *udev = data->udev;
1091 /* Old firmware would otherwise execute USB reset */
1092 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1093 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1096 if (id->driver_info & BTUSB_SNIFFER) {
1097 struct usb_device *udev = data->udev;
1099 /* New sniffer firmware has crippled HCI interface */
1100 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1101 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1106 if (id->driver_info & BTUSB_BCM92035) {
1107 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1108 struct sk_buff *skb;
1110 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1112 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1113 skb_queue_tail(&hdev->driver_init, skb);
1118 err = usb_driver_claim_interface(&btusb_driver,
1127 err = hci_register_dev(hdev);
1134 usb_set_intfdata(intf, data);
1139 static void btusb_disconnect(struct usb_interface *intf)
1141 struct btusb_data *data = usb_get_intfdata(intf);
1142 struct hci_dev *hdev;
1144 BT_DBG("intf %p", intf);
1151 __hci_dev_hold(hdev);
1153 usb_set_intfdata(data->intf, NULL);
1156 usb_set_intfdata(data->isoc, NULL);
1158 hci_unregister_dev(hdev);
1160 if (intf == data->isoc)
1161 usb_driver_release_interface(&btusb_driver, data->intf);
1162 else if (data->isoc)
1163 usb_driver_release_interface(&btusb_driver, data->isoc);
1165 __hci_dev_put(hdev);
1171 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1173 struct btusb_data *data = usb_get_intfdata(intf);
1175 BT_DBG("intf %p", intf);
1177 if (data->suspend_count++)
1180 spin_lock_irq(&data->txlock);
1181 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1182 set_bit(BTUSB_SUSPENDING, &data->flags);
1183 spin_unlock_irq(&data->txlock);
1185 spin_unlock_irq(&data->txlock);
1186 data->suspend_count--;
1190 cancel_work_sync(&data->work);
1192 btusb_stop_traffic(data);
1193 usb_kill_anchored_urbs(&data->tx_anchor);
1198 static void play_deferred(struct btusb_data *data)
1203 while ((urb = usb_get_from_anchor(&data->deferred))) {
1204 err = usb_submit_urb(urb, GFP_ATOMIC);
1208 data->tx_in_flight++;
1210 usb_scuttle_anchored_urbs(&data->deferred);
1213 static int btusb_resume(struct usb_interface *intf)
1215 struct btusb_data *data = usb_get_intfdata(intf);
1216 struct hci_dev *hdev = data->hdev;
1219 BT_DBG("intf %p", intf);
1221 if (--data->suspend_count)
1224 if (!test_bit(HCI_RUNNING, &hdev->flags))
1227 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1228 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1230 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1235 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1236 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1238 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1242 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1245 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1246 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1247 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1249 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1252 spin_lock_irq(&data->txlock);
1253 play_deferred(data);
1254 clear_bit(BTUSB_SUSPENDING, &data->flags);
1255 spin_unlock_irq(&data->txlock);
1256 schedule_work(&data->work);
1261 usb_scuttle_anchored_urbs(&data->deferred);
1263 spin_lock_irq(&data->txlock);
1264 clear_bit(BTUSB_SUSPENDING, &data->flags);
1265 spin_unlock_irq(&data->txlock);
1271 static struct usb_driver btusb_driver = {
1273 .probe = btusb_probe,
1274 .disconnect = btusb_disconnect,
1276 .suspend = btusb_suspend,
1277 .resume = btusb_resume,
1279 .id_table = btusb_table,
1280 .supports_autosuspend = 1,
1283 static int __init btusb_init(void)
1285 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1287 return usb_register(&btusb_driver);
1290 static void __exit btusb_exit(void)
1292 usb_deregister(&btusb_driver);
1295 module_init(btusb_init);
1296 module_exit(btusb_exit);
1298 module_param(ignore_dga, bool, 0644);
1299 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1301 module_param(ignore_csr, bool, 0644);
1302 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1304 module_param(ignore_sniffer, bool, 0644);
1305 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1307 module_param(disable_scofix, bool, 0644);
1308 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1310 module_param(force_scofix, bool, 0644);
1311 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1313 module_param(reset, bool, 0644);
1314 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1316 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1317 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1318 MODULE_VERSION(VERSION);
1319 MODULE_LICENSE("GPL");