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(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
152 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
153 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
154 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
155 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
157 /* Atheros AR9285 Malbec with sflash firmware */
158 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
160 /* Atheros 3012 with sflash firmware */
161 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
210 /* Atheros AR5BBU12 with sflash firmware */
211 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
213 /* Atheros AR5BBU12 with sflash firmware */
214 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
217 /* Broadcom BCM2035 */
218 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
219 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
220 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
222 /* Broadcom BCM2045 */
223 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
224 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
226 /* IBM/Lenovo ThinkPad with Broadcom chip */
227 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
228 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
230 /* HP laptop with Broadcom chip */
231 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
233 /* Dell laptop with Broadcom chip */
234 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
236 /* Dell Wireless 370 and 410 devices */
237 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
238 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
240 /* Belkin F8T012 and F8T013 devices */
241 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
242 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
244 /* Asus WL-BTD202 device */
245 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
247 /* Kensington Bluetooth USB adapter */
248 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
250 /* RTX Telecom based adapters with buggy SCO support */
251 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
252 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
254 /* CONWISE Technology based adapters with buggy SCO support */
255 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
257 /* Digianswer devices */
258 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
259 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
261 /* CSR BlueCore Bluetooth Sniffer */
262 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
264 /* Frontline ComProbe Bluetooth Sniffer */
265 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
267 { } /* Terminating entry */
270 #define BTUSB_MAX_ISOC_FRAMES 10
272 #define BTUSB_INTR_RUNNING 0
273 #define BTUSB_BULK_RUNNING 1
274 #define BTUSB_ISOC_RUNNING 2
275 #define BTUSB_SUSPENDING 3
276 #define BTUSB_DID_ISO_RESUME 4
279 struct hci_dev *hdev;
280 struct usb_device *udev;
281 struct usb_interface *intf;
282 struct usb_interface *isoc;
288 struct work_struct work;
289 struct work_struct waker;
291 struct usb_anchor tx_anchor;
292 struct usb_anchor intr_anchor;
293 struct usb_anchor bulk_anchor;
294 struct usb_anchor isoc_anchor;
295 struct usb_anchor deferred;
299 struct usb_endpoint_descriptor *intr_ep;
300 struct usb_endpoint_descriptor *bulk_tx_ep;
301 struct usb_endpoint_descriptor *bulk_rx_ep;
302 struct usb_endpoint_descriptor *isoc_tx_ep;
303 struct usb_endpoint_descriptor *isoc_rx_ep;
307 unsigned int sco_num;
312 static int inc_tx(struct btusb_data *data)
317 spin_lock_irqsave(&data->txlock, flags);
318 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
320 data->tx_in_flight++;
321 spin_unlock_irqrestore(&data->txlock, flags);
326 static void btusb_intr_complete(struct urb *urb)
328 struct hci_dev *hdev = urb->context;
329 struct btusb_data *data = hdev->driver_data;
332 BT_DBG("%s urb %p status %d count %d", hdev->name,
333 urb, urb->status, urb->actual_length);
335 if (!test_bit(HCI_RUNNING, &hdev->flags))
338 if (urb->status == 0) {
339 hdev->stat.byte_rx += urb->actual_length;
341 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
342 urb->transfer_buffer,
343 urb->actual_length) < 0) {
344 BT_ERR("%s corrupted event packet", hdev->name);
347 } else if (urb->status == -ENOENT) {
348 /* Avoid suspend failed when usb_kill_urb */
352 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
355 usb_mark_last_busy(data->udev);
356 usb_anchor_urb(urb, &data->intr_anchor);
358 err = usb_submit_urb(urb, GFP_ATOMIC);
360 /* -EPERM: urb is being killed;
361 * -ENODEV: device got disconnected */
362 if (err != -EPERM && err != -ENODEV)
363 BT_ERR("%s urb %p failed to resubmit (%d)",
364 hdev->name, urb, -err);
365 usb_unanchor_urb(urb);
369 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
371 struct btusb_data *data = hdev->driver_data;
377 BT_DBG("%s", hdev->name);
382 urb = usb_alloc_urb(0, mem_flags);
386 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
388 buf = kmalloc(size, mem_flags);
394 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
396 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
397 btusb_intr_complete, hdev,
398 data->intr_ep->bInterval);
400 urb->transfer_flags |= URB_FREE_BUFFER;
402 usb_anchor_urb(urb, &data->intr_anchor);
404 err = usb_submit_urb(urb, mem_flags);
406 BT_ERR("%s urb %p submission failed (%d)",
407 hdev->name, urb, -err);
408 usb_unanchor_urb(urb);
416 static void btusb_bulk_complete(struct urb *urb)
418 struct hci_dev *hdev = urb->context;
419 struct btusb_data *data = hdev->driver_data;
422 BT_DBG("%s urb %p status %d count %d", hdev->name,
423 urb, urb->status, urb->actual_length);
425 if (!test_bit(HCI_RUNNING, &hdev->flags))
428 if (urb->status == 0) {
429 hdev->stat.byte_rx += urb->actual_length;
431 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
432 urb->transfer_buffer,
433 urb->actual_length) < 0) {
434 BT_ERR("%s corrupted ACL packet", hdev->name);
437 } else if (urb->status == -ENOENT) {
438 /* Avoid suspend failed when usb_kill_urb */
442 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
445 usb_anchor_urb(urb, &data->bulk_anchor);
446 usb_mark_last_busy(data->udev);
448 err = usb_submit_urb(urb, GFP_ATOMIC);
450 /* -EPERM: urb is being killed;
451 * -ENODEV: device got disconnected */
452 if (err != -EPERM && err != -ENODEV)
453 BT_ERR("%s urb %p failed to resubmit (%d)",
454 hdev->name, urb, -err);
455 usb_unanchor_urb(urb);
459 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
461 struct btusb_data *data = hdev->driver_data;
465 int err, size = HCI_MAX_FRAME_SIZE;
467 BT_DBG("%s", hdev->name);
469 if (!data->bulk_rx_ep)
472 urb = usb_alloc_urb(0, mem_flags);
476 buf = kmalloc(size, mem_flags);
482 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
484 usb_fill_bulk_urb(urb, data->udev, pipe,
485 buf, size, btusb_bulk_complete, hdev);
487 urb->transfer_flags |= URB_FREE_BUFFER;
489 usb_mark_last_busy(data->udev);
490 usb_anchor_urb(urb, &data->bulk_anchor);
492 err = usb_submit_urb(urb, mem_flags);
494 BT_ERR("%s urb %p submission failed (%d)",
495 hdev->name, urb, -err);
496 usb_unanchor_urb(urb);
504 static void btusb_isoc_complete(struct urb *urb)
506 struct hci_dev *hdev = urb->context;
507 struct btusb_data *data = hdev->driver_data;
510 BT_DBG("%s urb %p status %d count %d", hdev->name,
511 urb, urb->status, urb->actual_length);
513 if (!test_bit(HCI_RUNNING, &hdev->flags))
516 if (urb->status == 0) {
517 for (i = 0; i < urb->number_of_packets; i++) {
518 unsigned int offset = urb->iso_frame_desc[i].offset;
519 unsigned int length = urb->iso_frame_desc[i].actual_length;
521 if (urb->iso_frame_desc[i].status)
524 hdev->stat.byte_rx += length;
526 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
527 urb->transfer_buffer + offset,
529 BT_ERR("%s corrupted SCO packet", hdev->name);
533 } else if (urb->status == -ENOENT) {
534 /* Avoid suspend failed when usb_kill_urb */
538 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
541 usb_anchor_urb(urb, &data->isoc_anchor);
543 err = usb_submit_urb(urb, GFP_ATOMIC);
545 /* -EPERM: urb is being killed;
546 * -ENODEV: device got disconnected */
547 if (err != -EPERM && err != -ENODEV)
548 BT_ERR("%s urb %p failed to resubmit (%d)",
549 hdev->name, urb, -err);
550 usb_unanchor_urb(urb);
554 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
558 BT_DBG("len %d mtu %d", len, mtu);
560 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
561 i++, offset += mtu, len -= mtu) {
562 urb->iso_frame_desc[i].offset = offset;
563 urb->iso_frame_desc[i].length = mtu;
566 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
567 urb->iso_frame_desc[i].offset = offset;
568 urb->iso_frame_desc[i].length = len;
572 urb->number_of_packets = i;
575 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
577 struct btusb_data *data = hdev->driver_data;
583 BT_DBG("%s", hdev->name);
585 if (!data->isoc_rx_ep)
588 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
592 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
593 BTUSB_MAX_ISOC_FRAMES;
595 buf = kmalloc(size, mem_flags);
601 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
603 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
604 hdev, data->isoc_rx_ep->bInterval);
606 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
608 __fill_isoc_descriptor(urb, size,
609 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
611 usb_anchor_urb(urb, &data->isoc_anchor);
613 err = usb_submit_urb(urb, mem_flags);
615 BT_ERR("%s urb %p submission failed (%d)",
616 hdev->name, urb, -err);
617 usb_unanchor_urb(urb);
625 static void btusb_tx_complete(struct urb *urb)
627 struct sk_buff *skb = urb->context;
628 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
629 struct btusb_data *data = hdev->driver_data;
631 BT_DBG("%s urb %p status %d count %d", hdev->name,
632 urb, urb->status, urb->actual_length);
634 if (!test_bit(HCI_RUNNING, &hdev->flags))
638 hdev->stat.byte_tx += urb->transfer_buffer_length;
643 spin_lock(&data->txlock);
644 data->tx_in_flight--;
645 spin_unlock(&data->txlock);
647 kfree(urb->setup_packet);
652 static void btusb_isoc_tx_complete(struct urb *urb)
654 struct sk_buff *skb = urb->context;
655 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
657 BT_DBG("%s urb %p status %d count %d", hdev->name,
658 urb, urb->status, urb->actual_length);
660 if (!test_bit(HCI_RUNNING, &hdev->flags))
664 hdev->stat.byte_tx += urb->transfer_buffer_length;
669 kfree(urb->setup_packet);
674 static int btusb_open(struct hci_dev *hdev)
676 struct btusb_data *data = hdev->driver_data;
679 BT_DBG("%s", hdev->name);
681 err = usb_autopm_get_interface(data->intf);
685 data->intf->needs_remote_wakeup = 1;
687 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
690 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
693 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
697 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
699 usb_kill_anchored_urbs(&data->intr_anchor);
703 set_bit(BTUSB_BULK_RUNNING, &data->flags);
704 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
707 usb_autopm_put_interface(data->intf);
711 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
712 clear_bit(HCI_RUNNING, &hdev->flags);
713 usb_autopm_put_interface(data->intf);
717 static void btusb_stop_traffic(struct btusb_data *data)
719 usb_kill_anchored_urbs(&data->intr_anchor);
720 usb_kill_anchored_urbs(&data->bulk_anchor);
721 usb_kill_anchored_urbs(&data->isoc_anchor);
724 static int btusb_close(struct hci_dev *hdev)
726 struct btusb_data *data = hdev->driver_data;
729 BT_DBG("%s", hdev->name);
731 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
734 cancel_work_sync(&data->work);
735 cancel_work_sync(&data->waker);
737 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
738 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
739 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
741 btusb_stop_traffic(data);
742 err = usb_autopm_get_interface(data->intf);
746 data->intf->needs_remote_wakeup = 0;
747 usb_autopm_put_interface(data->intf);
750 usb_scuttle_anchored_urbs(&data->deferred);
754 static int btusb_flush(struct hci_dev *hdev)
756 struct btusb_data *data = hdev->driver_data;
758 BT_DBG("%s", hdev->name);
760 usb_kill_anchored_urbs(&data->tx_anchor);
765 static int btusb_send_frame(struct sk_buff *skb)
767 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
768 struct btusb_data *data = hdev->driver_data;
769 struct usb_ctrlrequest *dr;
774 BT_DBG("%s", hdev->name);
776 if (!test_bit(HCI_RUNNING, &hdev->flags))
779 switch (bt_cb(skb)->pkt_type) {
780 case HCI_COMMAND_PKT:
781 urb = usb_alloc_urb(0, GFP_ATOMIC);
785 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
791 dr->bRequestType = data->cmdreq_type;
795 dr->wLength = __cpu_to_le16(skb->len);
797 pipe = usb_sndctrlpipe(data->udev, 0x00);
799 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
800 skb->data, skb->len, btusb_tx_complete, skb);
805 case HCI_ACLDATA_PKT:
806 if (!data->bulk_tx_ep)
809 urb = usb_alloc_urb(0, GFP_ATOMIC);
813 pipe = usb_sndbulkpipe(data->udev,
814 data->bulk_tx_ep->bEndpointAddress);
816 usb_fill_bulk_urb(urb, data->udev, pipe,
817 skb->data, skb->len, btusb_tx_complete, skb);
822 case HCI_SCODATA_PKT:
823 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
826 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
830 pipe = usb_sndisocpipe(data->udev,
831 data->isoc_tx_ep->bEndpointAddress);
833 usb_fill_int_urb(urb, data->udev, pipe,
834 skb->data, skb->len, btusb_isoc_tx_complete,
835 skb, data->isoc_tx_ep->bInterval);
837 urb->transfer_flags = URB_ISO_ASAP;
839 __fill_isoc_descriptor(urb, skb->len,
840 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
851 usb_anchor_urb(urb, &data->deferred);
852 schedule_work(&data->waker);
858 usb_anchor_urb(urb, &data->tx_anchor);
860 err = usb_submit_urb(urb, GFP_ATOMIC);
862 BT_ERR("%s urb %p submission failed", hdev->name, urb);
863 kfree(urb->setup_packet);
864 usb_unanchor_urb(urb);
866 usb_mark_last_busy(data->udev);
874 static void btusb_destruct(struct hci_dev *hdev)
876 struct btusb_data *data = hdev->driver_data;
878 BT_DBG("%s", hdev->name);
883 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
885 struct btusb_data *data = hdev->driver_data;
887 BT_DBG("%s evt %d", hdev->name, evt);
889 if (hdev->conn_hash.sco_num != data->sco_num) {
890 data->sco_num = hdev->conn_hash.sco_num;
891 schedule_work(&data->work);
895 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
897 struct btusb_data *data = hdev->driver_data;
898 struct usb_interface *intf = data->isoc;
899 struct usb_endpoint_descriptor *ep_desc;
905 err = usb_set_interface(data->udev, 1, altsetting);
907 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
911 data->isoc_altsetting = altsetting;
913 data->isoc_tx_ep = NULL;
914 data->isoc_rx_ep = NULL;
916 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
917 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
919 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
920 data->isoc_tx_ep = ep_desc;
924 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
925 data->isoc_rx_ep = ep_desc;
930 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
931 BT_ERR("%s invalid SCO descriptors", hdev->name);
938 static void btusb_work(struct work_struct *work)
940 struct btusb_data *data = container_of(work, struct btusb_data, work);
941 struct hci_dev *hdev = data->hdev;
944 if (hdev->conn_hash.sco_num > 0) {
945 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
946 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
948 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
949 usb_kill_anchored_urbs(&data->isoc_anchor);
953 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
955 if (data->isoc_altsetting != 2) {
956 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
957 usb_kill_anchored_urbs(&data->isoc_anchor);
959 if (__set_isoc_interface(hdev, 2) < 0)
963 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
964 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
965 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
967 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
970 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
971 usb_kill_anchored_urbs(&data->isoc_anchor);
973 __set_isoc_interface(hdev, 0);
974 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
975 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
979 static void btusb_waker(struct work_struct *work)
981 struct btusb_data *data = container_of(work, struct btusb_data, waker);
984 err = usb_autopm_get_interface(data->intf);
988 usb_autopm_put_interface(data->intf);
991 static int btusb_probe(struct usb_interface *intf,
992 const struct usb_device_id *id)
994 struct usb_endpoint_descriptor *ep_desc;
995 struct btusb_data *data;
996 struct hci_dev *hdev;
999 BT_DBG("intf %p id %p", intf, id);
1001 /* interface numbers are hardcoded in the spec */
1002 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1005 if (!id->driver_info) {
1006 const struct usb_device_id *match;
1007 match = usb_match_id(intf, blacklist_table);
1012 if (id->driver_info == BTUSB_IGNORE)
1015 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1018 if (ignore_csr && id->driver_info & BTUSB_CSR)
1021 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1024 if (id->driver_info & BTUSB_ATH3012) {
1025 struct usb_device *udev = interface_to_usbdev(intf);
1027 /* Old firmware would otherwise let ath3k driver load
1028 * patch and sysconfig files */
1029 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1033 data = kzalloc(sizeof(*data), GFP_KERNEL);
1037 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1038 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1040 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1041 data->intr_ep = ep_desc;
1045 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1046 data->bulk_tx_ep = ep_desc;
1050 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1051 data->bulk_rx_ep = ep_desc;
1056 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1061 data->cmdreq_type = USB_TYPE_CLASS;
1063 data->udev = interface_to_usbdev(intf);
1066 spin_lock_init(&data->lock);
1068 INIT_WORK(&data->work, btusb_work);
1069 INIT_WORK(&data->waker, btusb_waker);
1070 spin_lock_init(&data->txlock);
1072 init_usb_anchor(&data->tx_anchor);
1073 init_usb_anchor(&data->intr_anchor);
1074 init_usb_anchor(&data->bulk_anchor);
1075 init_usb_anchor(&data->isoc_anchor);
1076 init_usb_anchor(&data->deferred);
1078 hdev = hci_alloc_dev();
1084 hdev->bus = HCI_USB;
1085 hdev->driver_data = data;
1089 SET_HCIDEV_DEV(hdev, &intf->dev);
1091 hdev->open = btusb_open;
1092 hdev->close = btusb_close;
1093 hdev->flush = btusb_flush;
1094 hdev->send = btusb_send_frame;
1095 hdev->destruct = btusb_destruct;
1096 hdev->notify = btusb_notify;
1098 hdev->owner = THIS_MODULE;
1100 if (id->driver_info & BTUSB_INTEL_BOOT)
1101 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1103 /* Interface numbers are hardcoded in the specification */
1104 data->isoc = usb_ifnum_to_if(data->udev, 1);
1107 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1109 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1110 if (!disable_scofix)
1111 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1114 if (id->driver_info & BTUSB_BROKEN_ISOC)
1117 if (id->driver_info & BTUSB_DIGIANSWER) {
1118 data->cmdreq_type = USB_TYPE_VENDOR;
1119 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1122 if (id->driver_info & BTUSB_CSR) {
1123 struct usb_device *udev = data->udev;
1125 /* Old firmware would otherwise execute USB reset */
1126 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1127 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1130 if (id->driver_info & BTUSB_SNIFFER) {
1131 struct usb_device *udev = data->udev;
1133 /* New sniffer firmware has crippled HCI interface */
1134 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1135 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1140 if (id->driver_info & BTUSB_BCM92035) {
1141 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1142 struct sk_buff *skb;
1144 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1146 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1147 skb_queue_tail(&hdev->driver_init, skb);
1152 err = usb_driver_claim_interface(&btusb_driver,
1161 err = hci_register_dev(hdev);
1168 usb_set_intfdata(intf, data);
1173 static void btusb_disconnect(struct usb_interface *intf)
1175 struct btusb_data *data = usb_get_intfdata(intf);
1176 struct hci_dev *hdev;
1178 BT_DBG("intf %p", intf);
1185 __hci_dev_hold(hdev);
1187 usb_set_intfdata(data->intf, NULL);
1190 usb_set_intfdata(data->isoc, NULL);
1192 hci_unregister_dev(hdev);
1194 if (intf == data->isoc)
1195 usb_driver_release_interface(&btusb_driver, data->intf);
1196 else if (data->isoc)
1197 usb_driver_release_interface(&btusb_driver, data->isoc);
1199 __hci_dev_put(hdev);
1205 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1207 struct btusb_data *data = usb_get_intfdata(intf);
1209 BT_DBG("intf %p", intf);
1211 if (data->suspend_count++)
1214 spin_lock_irq(&data->txlock);
1215 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1216 set_bit(BTUSB_SUSPENDING, &data->flags);
1217 spin_unlock_irq(&data->txlock);
1219 spin_unlock_irq(&data->txlock);
1220 data->suspend_count--;
1224 cancel_work_sync(&data->work);
1226 btusb_stop_traffic(data);
1227 usb_kill_anchored_urbs(&data->tx_anchor);
1232 static void play_deferred(struct btusb_data *data)
1237 while ((urb = usb_get_from_anchor(&data->deferred))) {
1238 err = usb_submit_urb(urb, GFP_ATOMIC);
1242 data->tx_in_flight++;
1244 usb_scuttle_anchored_urbs(&data->deferred);
1247 static int btusb_resume(struct usb_interface *intf)
1249 struct btusb_data *data = usb_get_intfdata(intf);
1250 struct hci_dev *hdev = data->hdev;
1253 BT_DBG("intf %p", intf);
1255 if (--data->suspend_count)
1258 if (!test_bit(HCI_RUNNING, &hdev->flags))
1261 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1262 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1264 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1269 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1270 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1272 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1276 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1279 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1280 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1281 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1283 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1286 spin_lock_irq(&data->txlock);
1287 play_deferred(data);
1288 clear_bit(BTUSB_SUSPENDING, &data->flags);
1289 spin_unlock_irq(&data->txlock);
1290 schedule_work(&data->work);
1295 usb_scuttle_anchored_urbs(&data->deferred);
1297 spin_lock_irq(&data->txlock);
1298 clear_bit(BTUSB_SUSPENDING, &data->flags);
1299 spin_unlock_irq(&data->txlock);
1305 static struct usb_driver btusb_driver = {
1307 .probe = btusb_probe,
1308 .disconnect = btusb_disconnect,
1310 .suspend = btusb_suspend,
1311 .resume = btusb_resume,
1313 .id_table = btusb_table,
1314 .supports_autosuspend = 1,
1317 static int __init btusb_init(void)
1319 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1321 return usb_register(&btusb_driver);
1324 static void __exit btusb_exit(void)
1326 usb_deregister(&btusb_driver);
1329 module_init(btusb_init);
1330 module_exit(btusb_exit);
1332 module_param(ignore_dga, bool, 0644);
1333 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1335 module_param(ignore_csr, bool, 0644);
1336 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1338 module_param(ignore_sniffer, bool, 0644);
1339 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1341 module_param(disable_scofix, bool, 0644);
1342 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1344 module_param(force_scofix, bool, 0644);
1345 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1347 module_param(reset, bool, 0644);
1348 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1350 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1351 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1352 MODULE_VERSION(VERSION);
1353 MODULE_LICENSE("GPL");