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
58 #define BTUSB_INTEL_BOOT 0x200
60 static struct usb_device_id btusb_table[] = {
61 /* Generic Bluetooth USB device */
62 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
64 /* Apple-specific (Broadcom) devices */
65 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
67 /* MediaTek MT76x0E */
68 { USB_DEVICE(0x0e8d, 0x763f) },
70 /* Broadcom SoftSailing reporting vendor specific */
71 { USB_DEVICE(0x0a5c, 0x21e1) },
73 /* Apple MacBookPro 7,1 */
74 { USB_DEVICE(0x05ac, 0x8213) },
77 { USB_DEVICE(0x05ac, 0x8215) },
79 /* Apple MacBookPro6,2 */
80 { USB_DEVICE(0x05ac, 0x8218) },
82 /* Apple MacBookAir3,1, MacBookAir3,2 */
83 { USB_DEVICE(0x05ac, 0x821b) },
85 /* Apple MacBookAir4,1 */
86 { USB_DEVICE(0x05ac, 0x821f) },
88 /* Apple MacBookPro8,2 */
89 { USB_DEVICE(0x05ac, 0x821a) },
91 /* Apple MacMini5,1 */
92 { USB_DEVICE(0x05ac, 0x8281) },
94 /* AVM BlueFRITZ! USB v2.0 */
95 { USB_DEVICE(0x057c, 0x3800) },
97 /* Bluetooth Ultraport Module from IBM */
98 { USB_DEVICE(0x04bf, 0x030a) },
100 /* ALPS Modules with non-standard id */
101 { USB_DEVICE(0x044e, 0x3001) },
102 { USB_DEVICE(0x044e, 0x3002) },
104 /* Ericsson with non-standard id */
105 { USB_DEVICE(0x0bdb, 0x1002) },
107 /* Canyon CN-BTU1 with HID interfaces */
108 { USB_DEVICE(0x0c10, 0x0000) },
110 /* Broadcom BCM20702A0 */
111 { USB_DEVICE(0x0489, 0xe042) },
112 { USB_DEVICE(0x04ca, 0x2003) },
113 { USB_DEVICE(0x0b05, 0x17b5) },
114 { USB_DEVICE(0x0b05, 0x17cb) },
115 { USB_DEVICE(0x413c, 0x8197) },
117 /* Foxconn - Hon Hai */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
120 /* Broadcom devices with vendor specific id */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
123 /* ASUSTek Computer - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
126 /* Belkin F8065bf - Broadcom based */
127 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
129 /* IMC Networks - Broadcom based */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
132 /* Intel Bluetooth USB Bootloader (RAM module) */
133 { USB_DEVICE(0x8087, 0x0a5a),
134 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
136 { } /* Terminating entry */
139 MODULE_DEVICE_TABLE(usb, btusb_table);
141 static struct usb_device_id blacklist_table[] = {
142 /* CSR BlueCore devices */
143 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
145 /* Broadcom BCM2033 without firmware */
146 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
148 /* Atheros 3011 with sflash firmware */
149 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
150 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
151 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
152 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
153 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
154 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
156 /* Atheros AR9285 Malbec with sflash firmware */
157 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
159 /* Atheros 3012 with sflash firmware */
160 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
196 /* Atheros AR5BBU12 with sflash firmware */
197 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
199 /* Atheros AR5BBU12 with sflash firmware */
200 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
203 /* Broadcom BCM2035 */
204 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
205 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
206 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
208 /* Broadcom BCM2045 */
209 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
210 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
212 /* IBM/Lenovo ThinkPad with Broadcom chip */
213 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
214 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* HP laptop with Broadcom chip */
217 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
219 /* Dell laptop with Broadcom chip */
220 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
222 /* Dell Wireless 370 and 410 devices */
223 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
224 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
226 /* Belkin F8T012 and F8T013 devices */
227 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
228 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
230 /* Asus WL-BTD202 device */
231 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
233 /* Kensington Bluetooth USB adapter */
234 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
236 /* RTX Telecom based adapters with buggy SCO support */
237 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
238 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
240 /* CONWISE Technology based adapters with buggy SCO support */
241 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
243 /* Digianswer devices */
244 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
245 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
247 /* CSR BlueCore Bluetooth Sniffer */
248 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
250 /* Frontline ComProbe Bluetooth Sniffer */
251 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
253 { } /* Terminating entry */
256 #define BTUSB_MAX_ISOC_FRAMES 10
258 #define BTUSB_INTR_RUNNING 0
259 #define BTUSB_BULK_RUNNING 1
260 #define BTUSB_ISOC_RUNNING 2
261 #define BTUSB_SUSPENDING 3
262 #define BTUSB_DID_ISO_RESUME 4
265 struct hci_dev *hdev;
266 struct usb_device *udev;
267 struct usb_interface *intf;
268 struct usb_interface *isoc;
274 struct work_struct work;
275 struct work_struct waker;
277 struct usb_anchor tx_anchor;
278 struct usb_anchor intr_anchor;
279 struct usb_anchor bulk_anchor;
280 struct usb_anchor isoc_anchor;
281 struct usb_anchor deferred;
285 struct usb_endpoint_descriptor *intr_ep;
286 struct usb_endpoint_descriptor *bulk_tx_ep;
287 struct usb_endpoint_descriptor *bulk_rx_ep;
288 struct usb_endpoint_descriptor *isoc_tx_ep;
289 struct usb_endpoint_descriptor *isoc_rx_ep;
293 unsigned int sco_num;
298 static int inc_tx(struct btusb_data *data)
303 spin_lock_irqsave(&data->txlock, flags);
304 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
306 data->tx_in_flight++;
307 spin_unlock_irqrestore(&data->txlock, flags);
312 static void btusb_intr_complete(struct urb *urb)
314 struct hci_dev *hdev = urb->context;
315 struct btusb_data *data = hdev->driver_data;
318 BT_DBG("%s urb %p status %d count %d", hdev->name,
319 urb, urb->status, urb->actual_length);
321 if (!test_bit(HCI_RUNNING, &hdev->flags))
324 if (urb->status == 0) {
325 hdev->stat.byte_rx += urb->actual_length;
327 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
328 urb->transfer_buffer,
329 urb->actual_length) < 0) {
330 BT_ERR("%s corrupted event packet", hdev->name);
333 } else if (urb->status == -ENOENT) {
334 /* Avoid suspend failed when usb_kill_urb */
338 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
341 usb_mark_last_busy(data->udev);
342 usb_anchor_urb(urb, &data->intr_anchor);
344 err = usb_submit_urb(urb, GFP_ATOMIC);
346 /* -EPERM: urb is being killed;
347 * -ENODEV: device got disconnected */
348 if (err != -EPERM && err != -ENODEV)
349 BT_ERR("%s urb %p failed to resubmit (%d)",
350 hdev->name, urb, -err);
351 usb_unanchor_urb(urb);
355 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
357 struct btusb_data *data = hdev->driver_data;
363 BT_DBG("%s", hdev->name);
368 urb = usb_alloc_urb(0, mem_flags);
372 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
374 buf = kmalloc(size, mem_flags);
380 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
382 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
383 btusb_intr_complete, hdev,
384 data->intr_ep->bInterval);
386 urb->transfer_flags |= URB_FREE_BUFFER;
388 usb_anchor_urb(urb, &data->intr_anchor);
390 err = usb_submit_urb(urb, mem_flags);
392 BT_ERR("%s urb %p submission failed (%d)",
393 hdev->name, urb, -err);
394 usb_unanchor_urb(urb);
402 static void btusb_bulk_complete(struct urb *urb)
404 struct hci_dev *hdev = urb->context;
405 struct btusb_data *data = hdev->driver_data;
408 BT_DBG("%s urb %p status %d count %d", hdev->name,
409 urb, urb->status, urb->actual_length);
411 if (!test_bit(HCI_RUNNING, &hdev->flags))
414 if (urb->status == 0) {
415 hdev->stat.byte_rx += urb->actual_length;
417 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
418 urb->transfer_buffer,
419 urb->actual_length) < 0) {
420 BT_ERR("%s corrupted ACL packet", hdev->name);
423 } else if (urb->status == -ENOENT) {
424 /* Avoid suspend failed when usb_kill_urb */
428 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
431 usb_anchor_urb(urb, &data->bulk_anchor);
432 usb_mark_last_busy(data->udev);
434 err = usb_submit_urb(urb, GFP_ATOMIC);
436 /* -EPERM: urb is being killed;
437 * -ENODEV: device got disconnected */
438 if (err != -EPERM && err != -ENODEV)
439 BT_ERR("%s urb %p failed to resubmit (%d)",
440 hdev->name, urb, -err);
441 usb_unanchor_urb(urb);
445 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
447 struct btusb_data *data = hdev->driver_data;
451 int err, size = HCI_MAX_FRAME_SIZE;
453 BT_DBG("%s", hdev->name);
455 if (!data->bulk_rx_ep)
458 urb = usb_alloc_urb(0, mem_flags);
462 buf = kmalloc(size, mem_flags);
468 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
470 usb_fill_bulk_urb(urb, data->udev, pipe,
471 buf, size, btusb_bulk_complete, hdev);
473 urb->transfer_flags |= URB_FREE_BUFFER;
475 usb_mark_last_busy(data->udev);
476 usb_anchor_urb(urb, &data->bulk_anchor);
478 err = usb_submit_urb(urb, mem_flags);
480 BT_ERR("%s urb %p submission failed (%d)",
481 hdev->name, urb, -err);
482 usb_unanchor_urb(urb);
490 static void btusb_isoc_complete(struct urb *urb)
492 struct hci_dev *hdev = urb->context;
493 struct btusb_data *data = hdev->driver_data;
496 BT_DBG("%s urb %p status %d count %d", hdev->name,
497 urb, urb->status, urb->actual_length);
499 if (!test_bit(HCI_RUNNING, &hdev->flags))
502 if (urb->status == 0) {
503 for (i = 0; i < urb->number_of_packets; i++) {
504 unsigned int offset = urb->iso_frame_desc[i].offset;
505 unsigned int length = urb->iso_frame_desc[i].actual_length;
507 if (urb->iso_frame_desc[i].status)
510 hdev->stat.byte_rx += length;
512 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
513 urb->transfer_buffer + offset,
515 BT_ERR("%s corrupted SCO packet", hdev->name);
519 } else if (urb->status == -ENOENT) {
520 /* Avoid suspend failed when usb_kill_urb */
524 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
527 usb_anchor_urb(urb, &data->isoc_anchor);
529 err = usb_submit_urb(urb, GFP_ATOMIC);
531 /* -EPERM: urb is being killed;
532 * -ENODEV: device got disconnected */
533 if (err != -EPERM && err != -ENODEV)
534 BT_ERR("%s urb %p failed to resubmit (%d)",
535 hdev->name, urb, -err);
536 usb_unanchor_urb(urb);
540 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
544 BT_DBG("len %d mtu %d", len, mtu);
546 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
547 i++, offset += mtu, len -= mtu) {
548 urb->iso_frame_desc[i].offset = offset;
549 urb->iso_frame_desc[i].length = mtu;
552 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
553 urb->iso_frame_desc[i].offset = offset;
554 urb->iso_frame_desc[i].length = len;
558 urb->number_of_packets = i;
561 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
563 struct btusb_data *data = hdev->driver_data;
569 BT_DBG("%s", hdev->name);
571 if (!data->isoc_rx_ep)
574 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
578 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
579 BTUSB_MAX_ISOC_FRAMES;
581 buf = kmalloc(size, mem_flags);
587 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
589 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
590 hdev, data->isoc_rx_ep->bInterval);
592 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
594 __fill_isoc_descriptor(urb, size,
595 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
597 usb_anchor_urb(urb, &data->isoc_anchor);
599 err = usb_submit_urb(urb, mem_flags);
601 BT_ERR("%s urb %p submission failed (%d)",
602 hdev->name, urb, -err);
603 usb_unanchor_urb(urb);
611 static void btusb_tx_complete(struct urb *urb)
613 struct sk_buff *skb = urb->context;
614 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
615 struct btusb_data *data = hdev->driver_data;
617 BT_DBG("%s urb %p status %d count %d", hdev->name,
618 urb, urb->status, urb->actual_length);
620 if (!test_bit(HCI_RUNNING, &hdev->flags))
624 hdev->stat.byte_tx += urb->transfer_buffer_length;
629 spin_lock(&data->txlock);
630 data->tx_in_flight--;
631 spin_unlock(&data->txlock);
633 kfree(urb->setup_packet);
638 static void btusb_isoc_tx_complete(struct urb *urb)
640 struct sk_buff *skb = urb->context;
641 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
643 BT_DBG("%s urb %p status %d count %d", hdev->name,
644 urb, urb->status, urb->actual_length);
646 if (!test_bit(HCI_RUNNING, &hdev->flags))
650 hdev->stat.byte_tx += urb->transfer_buffer_length;
655 kfree(urb->setup_packet);
660 static int btusb_open(struct hci_dev *hdev)
662 struct btusb_data *data = hdev->driver_data;
665 BT_DBG("%s", hdev->name);
667 err = usb_autopm_get_interface(data->intf);
671 data->intf->needs_remote_wakeup = 1;
673 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
676 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
679 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
683 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
685 usb_kill_anchored_urbs(&data->intr_anchor);
689 set_bit(BTUSB_BULK_RUNNING, &data->flags);
690 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
693 usb_autopm_put_interface(data->intf);
697 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
698 clear_bit(HCI_RUNNING, &hdev->flags);
699 usb_autopm_put_interface(data->intf);
703 static void btusb_stop_traffic(struct btusb_data *data)
705 usb_kill_anchored_urbs(&data->intr_anchor);
706 usb_kill_anchored_urbs(&data->bulk_anchor);
707 usb_kill_anchored_urbs(&data->isoc_anchor);
710 static int btusb_close(struct hci_dev *hdev)
712 struct btusb_data *data = hdev->driver_data;
715 BT_DBG("%s", hdev->name);
717 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
720 cancel_work_sync(&data->work);
721 cancel_work_sync(&data->waker);
723 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
724 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
725 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
727 btusb_stop_traffic(data);
728 err = usb_autopm_get_interface(data->intf);
732 data->intf->needs_remote_wakeup = 0;
733 usb_autopm_put_interface(data->intf);
736 usb_scuttle_anchored_urbs(&data->deferred);
740 static int btusb_flush(struct hci_dev *hdev)
742 struct btusb_data *data = hdev->driver_data;
744 BT_DBG("%s", hdev->name);
746 usb_kill_anchored_urbs(&data->tx_anchor);
751 static int btusb_send_frame(struct sk_buff *skb)
753 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
754 struct btusb_data *data = hdev->driver_data;
755 struct usb_ctrlrequest *dr;
760 BT_DBG("%s", hdev->name);
762 if (!test_bit(HCI_RUNNING, &hdev->flags))
765 switch (bt_cb(skb)->pkt_type) {
766 case HCI_COMMAND_PKT:
767 urb = usb_alloc_urb(0, GFP_ATOMIC);
771 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
777 dr->bRequestType = data->cmdreq_type;
781 dr->wLength = __cpu_to_le16(skb->len);
783 pipe = usb_sndctrlpipe(data->udev, 0x00);
785 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
786 skb->data, skb->len, btusb_tx_complete, skb);
791 case HCI_ACLDATA_PKT:
792 if (!data->bulk_tx_ep)
795 urb = usb_alloc_urb(0, GFP_ATOMIC);
799 pipe = usb_sndbulkpipe(data->udev,
800 data->bulk_tx_ep->bEndpointAddress);
802 usb_fill_bulk_urb(urb, data->udev, pipe,
803 skb->data, skb->len, btusb_tx_complete, skb);
808 case HCI_SCODATA_PKT:
809 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
812 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
816 pipe = usb_sndisocpipe(data->udev,
817 data->isoc_tx_ep->bEndpointAddress);
819 usb_fill_int_urb(urb, data->udev, pipe,
820 skb->data, skb->len, btusb_isoc_tx_complete,
821 skb, data->isoc_tx_ep->bInterval);
823 urb->transfer_flags = URB_ISO_ASAP;
825 __fill_isoc_descriptor(urb, skb->len,
826 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
837 usb_anchor_urb(urb, &data->deferred);
838 schedule_work(&data->waker);
844 usb_anchor_urb(urb, &data->tx_anchor);
846 err = usb_submit_urb(urb, GFP_ATOMIC);
848 BT_ERR("%s urb %p submission failed", hdev->name, urb);
849 kfree(urb->setup_packet);
850 usb_unanchor_urb(urb);
852 usb_mark_last_busy(data->udev);
860 static void btusb_destruct(struct hci_dev *hdev)
862 struct btusb_data *data = hdev->driver_data;
864 BT_DBG("%s", hdev->name);
869 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
871 struct btusb_data *data = hdev->driver_data;
873 BT_DBG("%s evt %d", hdev->name, evt);
875 if (hdev->conn_hash.sco_num != data->sco_num) {
876 data->sco_num = hdev->conn_hash.sco_num;
877 schedule_work(&data->work);
881 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
883 struct btusb_data *data = hdev->driver_data;
884 struct usb_interface *intf = data->isoc;
885 struct usb_endpoint_descriptor *ep_desc;
891 err = usb_set_interface(data->udev, 1, altsetting);
893 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
897 data->isoc_altsetting = altsetting;
899 data->isoc_tx_ep = NULL;
900 data->isoc_rx_ep = NULL;
902 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
903 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
905 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
906 data->isoc_tx_ep = ep_desc;
910 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
911 data->isoc_rx_ep = ep_desc;
916 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
917 BT_ERR("%s invalid SCO descriptors", hdev->name);
924 static void btusb_work(struct work_struct *work)
926 struct btusb_data *data = container_of(work, struct btusb_data, work);
927 struct hci_dev *hdev = data->hdev;
930 if (hdev->conn_hash.sco_num > 0) {
931 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
932 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
934 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
935 usb_kill_anchored_urbs(&data->isoc_anchor);
939 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
941 if (data->isoc_altsetting != 2) {
942 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
943 usb_kill_anchored_urbs(&data->isoc_anchor);
945 if (__set_isoc_interface(hdev, 2) < 0)
949 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
950 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
951 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
953 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
956 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
957 usb_kill_anchored_urbs(&data->isoc_anchor);
959 __set_isoc_interface(hdev, 0);
960 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
961 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
965 static void btusb_waker(struct work_struct *work)
967 struct btusb_data *data = container_of(work, struct btusb_data, waker);
970 err = usb_autopm_get_interface(data->intf);
974 usb_autopm_put_interface(data->intf);
977 static int btusb_probe(struct usb_interface *intf,
978 const struct usb_device_id *id)
980 struct usb_endpoint_descriptor *ep_desc;
981 struct btusb_data *data;
982 struct hci_dev *hdev;
985 BT_DBG("intf %p id %p", intf, id);
987 /* interface numbers are hardcoded in the spec */
988 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
991 if (!id->driver_info) {
992 const struct usb_device_id *match;
993 match = usb_match_id(intf, blacklist_table);
998 if (id->driver_info == BTUSB_IGNORE)
1001 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1004 if (ignore_csr && id->driver_info & BTUSB_CSR)
1007 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1010 if (id->driver_info & BTUSB_ATH3012) {
1011 struct usb_device *udev = interface_to_usbdev(intf);
1013 /* Old firmware would otherwise let ath3k driver load
1014 * patch and sysconfig files */
1015 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1019 data = kzalloc(sizeof(*data), GFP_KERNEL);
1023 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1024 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1026 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1027 data->intr_ep = ep_desc;
1031 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1032 data->bulk_tx_ep = ep_desc;
1036 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1037 data->bulk_rx_ep = ep_desc;
1042 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1047 data->cmdreq_type = USB_TYPE_CLASS;
1049 data->udev = interface_to_usbdev(intf);
1052 spin_lock_init(&data->lock);
1054 INIT_WORK(&data->work, btusb_work);
1055 INIT_WORK(&data->waker, btusb_waker);
1056 spin_lock_init(&data->txlock);
1058 init_usb_anchor(&data->tx_anchor);
1059 init_usb_anchor(&data->intr_anchor);
1060 init_usb_anchor(&data->bulk_anchor);
1061 init_usb_anchor(&data->isoc_anchor);
1062 init_usb_anchor(&data->deferred);
1064 hdev = hci_alloc_dev();
1070 hdev->bus = HCI_USB;
1071 hdev->driver_data = data;
1075 SET_HCIDEV_DEV(hdev, &intf->dev);
1077 hdev->open = btusb_open;
1078 hdev->close = btusb_close;
1079 hdev->flush = btusb_flush;
1080 hdev->send = btusb_send_frame;
1081 hdev->destruct = btusb_destruct;
1082 hdev->notify = btusb_notify;
1084 hdev->owner = THIS_MODULE;
1086 if (id->driver_info & BTUSB_INTEL_BOOT)
1087 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1089 /* Interface numbers are hardcoded in the specification */
1090 data->isoc = usb_ifnum_to_if(data->udev, 1);
1093 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1095 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1096 if (!disable_scofix)
1097 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1100 if (id->driver_info & BTUSB_BROKEN_ISOC)
1103 if (id->driver_info & BTUSB_DIGIANSWER) {
1104 data->cmdreq_type = USB_TYPE_VENDOR;
1105 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1108 if (id->driver_info & BTUSB_CSR) {
1109 struct usb_device *udev = data->udev;
1111 /* Old firmware would otherwise execute USB reset */
1112 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1113 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1116 if (id->driver_info & BTUSB_SNIFFER) {
1117 struct usb_device *udev = data->udev;
1119 /* New sniffer firmware has crippled HCI interface */
1120 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1121 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1126 if (id->driver_info & BTUSB_BCM92035) {
1127 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1128 struct sk_buff *skb;
1130 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1132 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1133 skb_queue_tail(&hdev->driver_init, skb);
1138 err = usb_driver_claim_interface(&btusb_driver,
1147 err = hci_register_dev(hdev);
1154 usb_set_intfdata(intf, data);
1159 static void btusb_disconnect(struct usb_interface *intf)
1161 struct btusb_data *data = usb_get_intfdata(intf);
1162 struct hci_dev *hdev;
1164 BT_DBG("intf %p", intf);
1171 __hci_dev_hold(hdev);
1173 usb_set_intfdata(data->intf, NULL);
1176 usb_set_intfdata(data->isoc, NULL);
1178 hci_unregister_dev(hdev);
1180 if (intf == data->isoc)
1181 usb_driver_release_interface(&btusb_driver, data->intf);
1182 else if (data->isoc)
1183 usb_driver_release_interface(&btusb_driver, data->isoc);
1185 __hci_dev_put(hdev);
1191 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1193 struct btusb_data *data = usb_get_intfdata(intf);
1195 BT_DBG("intf %p", intf);
1197 if (data->suspend_count++)
1200 spin_lock_irq(&data->txlock);
1201 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1202 set_bit(BTUSB_SUSPENDING, &data->flags);
1203 spin_unlock_irq(&data->txlock);
1205 spin_unlock_irq(&data->txlock);
1206 data->suspend_count--;
1210 cancel_work_sync(&data->work);
1212 btusb_stop_traffic(data);
1213 usb_kill_anchored_urbs(&data->tx_anchor);
1218 static void play_deferred(struct btusb_data *data)
1223 while ((urb = usb_get_from_anchor(&data->deferred))) {
1224 err = usb_submit_urb(urb, GFP_ATOMIC);
1228 data->tx_in_flight++;
1230 usb_scuttle_anchored_urbs(&data->deferred);
1233 static int btusb_resume(struct usb_interface *intf)
1235 struct btusb_data *data = usb_get_intfdata(intf);
1236 struct hci_dev *hdev = data->hdev;
1239 BT_DBG("intf %p", intf);
1241 if (--data->suspend_count)
1244 if (!test_bit(HCI_RUNNING, &hdev->flags))
1247 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1248 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1250 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1255 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1256 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1258 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1262 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1265 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1266 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1267 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1269 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1272 spin_lock_irq(&data->txlock);
1273 play_deferred(data);
1274 clear_bit(BTUSB_SUSPENDING, &data->flags);
1275 spin_unlock_irq(&data->txlock);
1276 schedule_work(&data->work);
1281 usb_scuttle_anchored_urbs(&data->deferred);
1283 spin_lock_irq(&data->txlock);
1284 clear_bit(BTUSB_SUSPENDING, &data->flags);
1285 spin_unlock_irq(&data->txlock);
1291 static struct usb_driver btusb_driver = {
1293 .probe = btusb_probe,
1294 .disconnect = btusb_disconnect,
1296 .suspend = btusb_suspend,
1297 .resume = btusb_resume,
1299 .id_table = btusb_table,
1300 .supports_autosuspend = 1,
1303 static int __init btusb_init(void)
1305 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1307 return usb_register(&btusb_driver);
1310 static void __exit btusb_exit(void)
1312 usb_deregister(&btusb_driver);
1315 module_init(btusb_init);
1316 module_exit(btusb_exit);
1318 module_param(ignore_dga, bool, 0644);
1319 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1321 module_param(ignore_csr, bool, 0644);
1322 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1324 module_param(ignore_sniffer, bool, 0644);
1325 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1327 module_param(disable_scofix, bool, 0644);
1328 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1330 module_param(force_scofix, bool, 0644);
1331 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1333 module_param(reset, bool, 0644);
1334 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1336 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1337 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1338 MODULE_VERSION(VERSION);
1339 MODULE_LICENSE("GPL");