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(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
174 /* Atheros AR5BBU12 with sflash firmware */
175 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
177 /* Atheros AR5BBU12 with sflash firmware */
178 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
181 /* Broadcom BCM2035 */
182 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
183 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
184 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
186 /* Broadcom BCM2045 */
187 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
188 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
190 /* IBM/Lenovo ThinkPad with Broadcom chip */
191 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
192 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
194 /* HP laptop with Broadcom chip */
195 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
197 /* Dell laptop with Broadcom chip */
198 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
200 /* Dell Wireless 370 and 410 devices */
201 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
202 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
204 /* Belkin F8T012 and F8T013 devices */
205 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
206 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
208 /* Asus WL-BTD202 device */
209 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
211 /* Kensington Bluetooth USB adapter */
212 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
214 /* RTX Telecom based adapters with buggy SCO support */
215 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
216 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
218 /* CONWISE Technology based adapters with buggy SCO support */
219 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
221 /* Digianswer devices */
222 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
223 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
225 /* CSR BlueCore Bluetooth Sniffer */
226 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
228 /* Frontline ComProbe Bluetooth Sniffer */
229 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
231 { } /* Terminating entry */
234 #define BTUSB_MAX_ISOC_FRAMES 10
236 #define BTUSB_INTR_RUNNING 0
237 #define BTUSB_BULK_RUNNING 1
238 #define BTUSB_ISOC_RUNNING 2
239 #define BTUSB_SUSPENDING 3
240 #define BTUSB_DID_ISO_RESUME 4
243 struct hci_dev *hdev;
244 struct usb_device *udev;
245 struct usb_interface *intf;
246 struct usb_interface *isoc;
252 struct work_struct work;
253 struct work_struct waker;
255 struct usb_anchor tx_anchor;
256 struct usb_anchor intr_anchor;
257 struct usb_anchor bulk_anchor;
258 struct usb_anchor isoc_anchor;
259 struct usb_anchor deferred;
263 struct usb_endpoint_descriptor *intr_ep;
264 struct usb_endpoint_descriptor *bulk_tx_ep;
265 struct usb_endpoint_descriptor *bulk_rx_ep;
266 struct usb_endpoint_descriptor *isoc_tx_ep;
267 struct usb_endpoint_descriptor *isoc_rx_ep;
271 unsigned int sco_num;
276 static int inc_tx(struct btusb_data *data)
281 spin_lock_irqsave(&data->txlock, flags);
282 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
284 data->tx_in_flight++;
285 spin_unlock_irqrestore(&data->txlock, flags);
290 static void btusb_intr_complete(struct urb *urb)
292 struct hci_dev *hdev = urb->context;
293 struct btusb_data *data = hdev->driver_data;
296 BT_DBG("%s urb %p status %d count %d", hdev->name,
297 urb, urb->status, urb->actual_length);
299 if (!test_bit(HCI_RUNNING, &hdev->flags))
302 if (urb->status == 0) {
303 hdev->stat.byte_rx += urb->actual_length;
305 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
306 urb->transfer_buffer,
307 urb->actual_length) < 0) {
308 BT_ERR("%s corrupted event packet", hdev->name);
311 } else if (urb->status == -ENOENT) {
312 /* Avoid suspend failed when usb_kill_urb */
316 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
319 usb_mark_last_busy(data->udev);
320 usb_anchor_urb(urb, &data->intr_anchor);
322 err = usb_submit_urb(urb, GFP_ATOMIC);
324 /* -EPERM: urb is being killed;
325 * -ENODEV: device got disconnected */
326 if (err != -EPERM && err != -ENODEV)
327 BT_ERR("%s urb %p failed to resubmit (%d)",
328 hdev->name, urb, -err);
329 usb_unanchor_urb(urb);
333 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
335 struct btusb_data *data = hdev->driver_data;
341 BT_DBG("%s", hdev->name);
346 urb = usb_alloc_urb(0, mem_flags);
350 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
352 buf = kmalloc(size, mem_flags);
358 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
360 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
361 btusb_intr_complete, hdev,
362 data->intr_ep->bInterval);
364 urb->transfer_flags |= URB_FREE_BUFFER;
366 usb_anchor_urb(urb, &data->intr_anchor);
368 err = usb_submit_urb(urb, mem_flags);
370 BT_ERR("%s urb %p submission failed (%d)",
371 hdev->name, urb, -err);
372 usb_unanchor_urb(urb);
380 static void btusb_bulk_complete(struct urb *urb)
382 struct hci_dev *hdev = urb->context;
383 struct btusb_data *data = hdev->driver_data;
386 BT_DBG("%s urb %p status %d count %d", hdev->name,
387 urb, urb->status, urb->actual_length);
389 if (!test_bit(HCI_RUNNING, &hdev->flags))
392 if (urb->status == 0) {
393 hdev->stat.byte_rx += urb->actual_length;
395 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
396 urb->transfer_buffer,
397 urb->actual_length) < 0) {
398 BT_ERR("%s corrupted ACL packet", hdev->name);
401 } else if (urb->status == -ENOENT) {
402 /* Avoid suspend failed when usb_kill_urb */
406 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
409 usb_anchor_urb(urb, &data->bulk_anchor);
410 usb_mark_last_busy(data->udev);
412 err = usb_submit_urb(urb, GFP_ATOMIC);
414 /* -EPERM: urb is being killed;
415 * -ENODEV: device got disconnected */
416 if (err != -EPERM && err != -ENODEV)
417 BT_ERR("%s urb %p failed to resubmit (%d)",
418 hdev->name, urb, -err);
419 usb_unanchor_urb(urb);
423 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
425 struct btusb_data *data = hdev->driver_data;
429 int err, size = HCI_MAX_FRAME_SIZE;
431 BT_DBG("%s", hdev->name);
433 if (!data->bulk_rx_ep)
436 urb = usb_alloc_urb(0, mem_flags);
440 buf = kmalloc(size, mem_flags);
446 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
448 usb_fill_bulk_urb(urb, data->udev, pipe,
449 buf, size, btusb_bulk_complete, hdev);
451 urb->transfer_flags |= URB_FREE_BUFFER;
453 usb_mark_last_busy(data->udev);
454 usb_anchor_urb(urb, &data->bulk_anchor);
456 err = usb_submit_urb(urb, mem_flags);
458 BT_ERR("%s urb %p submission failed (%d)",
459 hdev->name, urb, -err);
460 usb_unanchor_urb(urb);
468 static void btusb_isoc_complete(struct urb *urb)
470 struct hci_dev *hdev = urb->context;
471 struct btusb_data *data = hdev->driver_data;
474 BT_DBG("%s urb %p status %d count %d", hdev->name,
475 urb, urb->status, urb->actual_length);
477 if (!test_bit(HCI_RUNNING, &hdev->flags))
480 if (urb->status == 0) {
481 for (i = 0; i < urb->number_of_packets; i++) {
482 unsigned int offset = urb->iso_frame_desc[i].offset;
483 unsigned int length = urb->iso_frame_desc[i].actual_length;
485 if (urb->iso_frame_desc[i].status)
488 hdev->stat.byte_rx += length;
490 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
491 urb->transfer_buffer + offset,
493 BT_ERR("%s corrupted SCO packet", hdev->name);
497 } else if (urb->status == -ENOENT) {
498 /* Avoid suspend failed when usb_kill_urb */
502 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
505 usb_anchor_urb(urb, &data->isoc_anchor);
507 err = usb_submit_urb(urb, GFP_ATOMIC);
509 /* -EPERM: urb is being killed;
510 * -ENODEV: device got disconnected */
511 if (err != -EPERM && err != -ENODEV)
512 BT_ERR("%s urb %p failed to resubmit (%d)",
513 hdev->name, urb, -err);
514 usb_unanchor_urb(urb);
518 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
522 BT_DBG("len %d mtu %d", len, mtu);
524 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
525 i++, offset += mtu, len -= mtu) {
526 urb->iso_frame_desc[i].offset = offset;
527 urb->iso_frame_desc[i].length = mtu;
530 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
531 urb->iso_frame_desc[i].offset = offset;
532 urb->iso_frame_desc[i].length = len;
536 urb->number_of_packets = i;
539 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
541 struct btusb_data *data = hdev->driver_data;
547 BT_DBG("%s", hdev->name);
549 if (!data->isoc_rx_ep)
552 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
556 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
557 BTUSB_MAX_ISOC_FRAMES;
559 buf = kmalloc(size, mem_flags);
565 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
567 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
568 hdev, data->isoc_rx_ep->bInterval);
570 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
572 __fill_isoc_descriptor(urb, size,
573 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
575 usb_anchor_urb(urb, &data->isoc_anchor);
577 err = usb_submit_urb(urb, mem_flags);
579 BT_ERR("%s urb %p submission failed (%d)",
580 hdev->name, urb, -err);
581 usb_unanchor_urb(urb);
589 static void btusb_tx_complete(struct urb *urb)
591 struct sk_buff *skb = urb->context;
592 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
593 struct btusb_data *data = hdev->driver_data;
595 BT_DBG("%s urb %p status %d count %d", hdev->name,
596 urb, urb->status, urb->actual_length);
598 if (!test_bit(HCI_RUNNING, &hdev->flags))
602 hdev->stat.byte_tx += urb->transfer_buffer_length;
607 spin_lock(&data->txlock);
608 data->tx_in_flight--;
609 spin_unlock(&data->txlock);
611 kfree(urb->setup_packet);
616 static void btusb_isoc_tx_complete(struct urb *urb)
618 struct sk_buff *skb = urb->context;
619 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
621 BT_DBG("%s urb %p status %d count %d", hdev->name,
622 urb, urb->status, urb->actual_length);
624 if (!test_bit(HCI_RUNNING, &hdev->flags))
628 hdev->stat.byte_tx += urb->transfer_buffer_length;
633 kfree(urb->setup_packet);
638 static int btusb_open(struct hci_dev *hdev)
640 struct btusb_data *data = hdev->driver_data;
643 BT_DBG("%s", hdev->name);
645 err = usb_autopm_get_interface(data->intf);
649 data->intf->needs_remote_wakeup = 1;
651 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
654 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
657 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
661 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
663 usb_kill_anchored_urbs(&data->intr_anchor);
667 set_bit(BTUSB_BULK_RUNNING, &data->flags);
668 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
671 usb_autopm_put_interface(data->intf);
675 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
676 clear_bit(HCI_RUNNING, &hdev->flags);
677 usb_autopm_put_interface(data->intf);
681 static void btusb_stop_traffic(struct btusb_data *data)
683 usb_kill_anchored_urbs(&data->intr_anchor);
684 usb_kill_anchored_urbs(&data->bulk_anchor);
685 usb_kill_anchored_urbs(&data->isoc_anchor);
688 static int btusb_close(struct hci_dev *hdev)
690 struct btusb_data *data = hdev->driver_data;
693 BT_DBG("%s", hdev->name);
695 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
698 cancel_work_sync(&data->work);
699 cancel_work_sync(&data->waker);
701 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
702 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
703 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
705 btusb_stop_traffic(data);
706 err = usb_autopm_get_interface(data->intf);
710 data->intf->needs_remote_wakeup = 0;
711 usb_autopm_put_interface(data->intf);
714 usb_scuttle_anchored_urbs(&data->deferred);
718 static int btusb_flush(struct hci_dev *hdev)
720 struct btusb_data *data = hdev->driver_data;
722 BT_DBG("%s", hdev->name);
724 usb_kill_anchored_urbs(&data->tx_anchor);
729 static int btusb_send_frame(struct sk_buff *skb)
731 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
732 struct btusb_data *data = hdev->driver_data;
733 struct usb_ctrlrequest *dr;
738 BT_DBG("%s", hdev->name);
740 if (!test_bit(HCI_RUNNING, &hdev->flags))
743 switch (bt_cb(skb)->pkt_type) {
744 case HCI_COMMAND_PKT:
745 urb = usb_alloc_urb(0, GFP_ATOMIC);
749 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
755 dr->bRequestType = data->cmdreq_type;
759 dr->wLength = __cpu_to_le16(skb->len);
761 pipe = usb_sndctrlpipe(data->udev, 0x00);
763 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
764 skb->data, skb->len, btusb_tx_complete, skb);
769 case HCI_ACLDATA_PKT:
770 if (!data->bulk_tx_ep)
773 urb = usb_alloc_urb(0, GFP_ATOMIC);
777 pipe = usb_sndbulkpipe(data->udev,
778 data->bulk_tx_ep->bEndpointAddress);
780 usb_fill_bulk_urb(urb, data->udev, pipe,
781 skb->data, skb->len, btusb_tx_complete, skb);
786 case HCI_SCODATA_PKT:
787 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
790 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
794 pipe = usb_sndisocpipe(data->udev,
795 data->isoc_tx_ep->bEndpointAddress);
797 usb_fill_int_urb(urb, data->udev, pipe,
798 skb->data, skb->len, btusb_isoc_tx_complete,
799 skb, data->isoc_tx_ep->bInterval);
801 urb->transfer_flags = URB_ISO_ASAP;
803 __fill_isoc_descriptor(urb, skb->len,
804 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
815 usb_anchor_urb(urb, &data->deferred);
816 schedule_work(&data->waker);
822 usb_anchor_urb(urb, &data->tx_anchor);
824 err = usb_submit_urb(urb, GFP_ATOMIC);
826 BT_ERR("%s urb %p submission failed", hdev->name, urb);
827 kfree(urb->setup_packet);
828 usb_unanchor_urb(urb);
830 usb_mark_last_busy(data->udev);
838 static void btusb_destruct(struct hci_dev *hdev)
840 struct btusb_data *data = hdev->driver_data;
842 BT_DBG("%s", hdev->name);
847 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
849 struct btusb_data *data = hdev->driver_data;
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 = hdev->driver_data;
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;
908 if (hdev->conn_hash.sco_num > 0) {
909 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
910 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
912 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
913 usb_kill_anchored_urbs(&data->isoc_anchor);
917 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
919 if (data->isoc_altsetting != 2) {
920 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
921 usb_kill_anchored_urbs(&data->isoc_anchor);
923 if (__set_isoc_interface(hdev, 2) < 0)
927 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
928 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
929 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
931 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
934 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
935 usb_kill_anchored_urbs(&data->isoc_anchor);
937 __set_isoc_interface(hdev, 0);
938 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
939 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
943 static void btusb_waker(struct work_struct *work)
945 struct btusb_data *data = container_of(work, struct btusb_data, waker);
948 err = usb_autopm_get_interface(data->intf);
952 usb_autopm_put_interface(data->intf);
955 static int btusb_probe(struct usb_interface *intf,
956 const struct usb_device_id *id)
958 struct usb_endpoint_descriptor *ep_desc;
959 struct btusb_data *data;
960 struct hci_dev *hdev;
963 BT_DBG("intf %p id %p", intf, id);
965 /* interface numbers are hardcoded in the spec */
966 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
969 if (!id->driver_info) {
970 const struct usb_device_id *match;
971 match = usb_match_id(intf, blacklist_table);
976 if (id->driver_info == BTUSB_IGNORE)
979 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
982 if (ignore_csr && id->driver_info & BTUSB_CSR)
985 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
988 if (id->driver_info & BTUSB_ATH3012) {
989 struct usb_device *udev = interface_to_usbdev(intf);
991 /* Old firmware would otherwise let ath3k driver load
992 * patch and sysconfig files */
993 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
997 data = kzalloc(sizeof(*data), GFP_KERNEL);
1001 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1002 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1004 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1005 data->intr_ep = ep_desc;
1009 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1010 data->bulk_tx_ep = ep_desc;
1014 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1015 data->bulk_rx_ep = ep_desc;
1020 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1025 data->cmdreq_type = USB_TYPE_CLASS;
1027 data->udev = interface_to_usbdev(intf);
1030 spin_lock_init(&data->lock);
1032 INIT_WORK(&data->work, btusb_work);
1033 INIT_WORK(&data->waker, btusb_waker);
1034 spin_lock_init(&data->txlock);
1036 init_usb_anchor(&data->tx_anchor);
1037 init_usb_anchor(&data->intr_anchor);
1038 init_usb_anchor(&data->bulk_anchor);
1039 init_usb_anchor(&data->isoc_anchor);
1040 init_usb_anchor(&data->deferred);
1042 hdev = hci_alloc_dev();
1048 hdev->bus = HCI_USB;
1049 hdev->driver_data = data;
1053 SET_HCIDEV_DEV(hdev, &intf->dev);
1055 hdev->open = btusb_open;
1056 hdev->close = btusb_close;
1057 hdev->flush = btusb_flush;
1058 hdev->send = btusb_send_frame;
1059 hdev->destruct = btusb_destruct;
1060 hdev->notify = btusb_notify;
1062 hdev->owner = THIS_MODULE;
1064 /* Interface numbers are hardcoded in the specification */
1065 data->isoc = usb_ifnum_to_if(data->udev, 1);
1068 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1070 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1071 if (!disable_scofix)
1072 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1075 if (id->driver_info & BTUSB_BROKEN_ISOC)
1078 if (id->driver_info & BTUSB_DIGIANSWER) {
1079 data->cmdreq_type = USB_TYPE_VENDOR;
1080 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1083 if (id->driver_info & BTUSB_CSR) {
1084 struct usb_device *udev = data->udev;
1086 /* Old firmware would otherwise execute USB reset */
1087 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1088 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1091 if (id->driver_info & BTUSB_SNIFFER) {
1092 struct usb_device *udev = data->udev;
1094 /* New sniffer firmware has crippled HCI interface */
1095 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1096 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1101 if (id->driver_info & BTUSB_BCM92035) {
1102 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1103 struct sk_buff *skb;
1105 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1107 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1108 skb_queue_tail(&hdev->driver_init, skb);
1113 err = usb_driver_claim_interface(&btusb_driver,
1122 err = hci_register_dev(hdev);
1129 usb_set_intfdata(intf, data);
1134 static void btusb_disconnect(struct usb_interface *intf)
1136 struct btusb_data *data = usb_get_intfdata(intf);
1137 struct hci_dev *hdev;
1139 BT_DBG("intf %p", intf);
1146 __hci_dev_hold(hdev);
1148 usb_set_intfdata(data->intf, NULL);
1151 usb_set_intfdata(data->isoc, NULL);
1153 hci_unregister_dev(hdev);
1155 if (intf == data->isoc)
1156 usb_driver_release_interface(&btusb_driver, data->intf);
1157 else if (data->isoc)
1158 usb_driver_release_interface(&btusb_driver, data->isoc);
1160 __hci_dev_put(hdev);
1166 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1168 struct btusb_data *data = usb_get_intfdata(intf);
1170 BT_DBG("intf %p", intf);
1172 if (data->suspend_count++)
1175 spin_lock_irq(&data->txlock);
1176 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1177 set_bit(BTUSB_SUSPENDING, &data->flags);
1178 spin_unlock_irq(&data->txlock);
1180 spin_unlock_irq(&data->txlock);
1181 data->suspend_count--;
1185 cancel_work_sync(&data->work);
1187 btusb_stop_traffic(data);
1188 usb_kill_anchored_urbs(&data->tx_anchor);
1193 static void play_deferred(struct btusb_data *data)
1198 while ((urb = usb_get_from_anchor(&data->deferred))) {
1199 err = usb_submit_urb(urb, GFP_ATOMIC);
1203 data->tx_in_flight++;
1205 usb_scuttle_anchored_urbs(&data->deferred);
1208 static int btusb_resume(struct usb_interface *intf)
1210 struct btusb_data *data = usb_get_intfdata(intf);
1211 struct hci_dev *hdev = data->hdev;
1214 BT_DBG("intf %p", intf);
1216 if (--data->suspend_count)
1219 if (!test_bit(HCI_RUNNING, &hdev->flags))
1222 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1223 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1225 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1230 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1231 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1233 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1237 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1240 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1241 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1242 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1244 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1247 spin_lock_irq(&data->txlock);
1248 play_deferred(data);
1249 clear_bit(BTUSB_SUSPENDING, &data->flags);
1250 spin_unlock_irq(&data->txlock);
1251 schedule_work(&data->work);
1256 usb_scuttle_anchored_urbs(&data->deferred);
1258 spin_lock_irq(&data->txlock);
1259 clear_bit(BTUSB_SUSPENDING, &data->flags);
1260 spin_unlock_irq(&data->txlock);
1266 static struct usb_driver btusb_driver = {
1268 .probe = btusb_probe,
1269 .disconnect = btusb_disconnect,
1271 .suspend = btusb_suspend,
1272 .resume = btusb_resume,
1274 .id_table = btusb_table,
1275 .supports_autosuspend = 1,
1278 static int __init btusb_init(void)
1280 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1282 return usb_register(&btusb_driver);
1285 static void __exit btusb_exit(void)
1287 usb_deregister(&btusb_driver);
1290 module_init(btusb_init);
1291 module_exit(btusb_exit);
1293 module_param(ignore_dga, bool, 0644);
1294 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1296 module_param(ignore_csr, bool, 0644);
1297 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1299 module_param(ignore_sniffer, bool, 0644);
1300 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1302 module_param(disable_scofix, bool, 0644);
1303 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1305 module_param(force_scofix, bool, 0644);
1306 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1308 module_param(reset, bool, 0644);
1309 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1311 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1312 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1313 MODULE_VERSION(VERSION);
1314 MODULE_LICENSE("GPL");