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(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
204 /* Atheros AR5BBU12 with sflash firmware */
205 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
207 /* Atheros AR5BBU12 with sflash firmware */
208 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
211 /* Broadcom BCM2035 */
212 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
213 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
214 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* Broadcom BCM2045 */
217 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
218 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
220 /* IBM/Lenovo ThinkPad with Broadcom chip */
221 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
222 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
224 /* HP laptop with Broadcom chip */
225 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
227 /* Dell laptop with Broadcom chip */
228 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
230 /* Dell Wireless 370 and 410 devices */
231 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
232 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
234 /* Belkin F8T012 and F8T013 devices */
235 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
236 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
238 /* Asus WL-BTD202 device */
239 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
241 /* Kensington Bluetooth USB adapter */
242 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
244 /* RTX Telecom based adapters with buggy SCO support */
245 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
246 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
248 /* CONWISE Technology based adapters with buggy SCO support */
249 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
251 /* Digianswer devices */
252 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
253 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
255 /* CSR BlueCore Bluetooth Sniffer */
256 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
258 /* Frontline ComProbe Bluetooth Sniffer */
259 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
261 { } /* Terminating entry */
264 #define BTUSB_MAX_ISOC_FRAMES 10
266 #define BTUSB_INTR_RUNNING 0
267 #define BTUSB_BULK_RUNNING 1
268 #define BTUSB_ISOC_RUNNING 2
269 #define BTUSB_SUSPENDING 3
270 #define BTUSB_DID_ISO_RESUME 4
273 struct hci_dev *hdev;
274 struct usb_device *udev;
275 struct usb_interface *intf;
276 struct usb_interface *isoc;
282 struct work_struct work;
283 struct work_struct waker;
285 struct usb_anchor tx_anchor;
286 struct usb_anchor intr_anchor;
287 struct usb_anchor bulk_anchor;
288 struct usb_anchor isoc_anchor;
289 struct usb_anchor deferred;
293 struct usb_endpoint_descriptor *intr_ep;
294 struct usb_endpoint_descriptor *bulk_tx_ep;
295 struct usb_endpoint_descriptor *bulk_rx_ep;
296 struct usb_endpoint_descriptor *isoc_tx_ep;
297 struct usb_endpoint_descriptor *isoc_rx_ep;
301 unsigned int sco_num;
306 static int inc_tx(struct btusb_data *data)
311 spin_lock_irqsave(&data->txlock, flags);
312 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
314 data->tx_in_flight++;
315 spin_unlock_irqrestore(&data->txlock, flags);
320 static void btusb_intr_complete(struct urb *urb)
322 struct hci_dev *hdev = urb->context;
323 struct btusb_data *data = hdev->driver_data;
326 BT_DBG("%s urb %p status %d count %d", hdev->name,
327 urb, urb->status, urb->actual_length);
329 if (!test_bit(HCI_RUNNING, &hdev->flags))
332 if (urb->status == 0) {
333 hdev->stat.byte_rx += urb->actual_length;
335 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
336 urb->transfer_buffer,
337 urb->actual_length) < 0) {
338 BT_ERR("%s corrupted event packet", hdev->name);
341 } else if (urb->status == -ENOENT) {
342 /* Avoid suspend failed when usb_kill_urb */
346 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
349 usb_mark_last_busy(data->udev);
350 usb_anchor_urb(urb, &data->intr_anchor);
352 err = usb_submit_urb(urb, GFP_ATOMIC);
354 /* -EPERM: urb is being killed;
355 * -ENODEV: device got disconnected */
356 if (err != -EPERM && err != -ENODEV)
357 BT_ERR("%s urb %p failed to resubmit (%d)",
358 hdev->name, urb, -err);
359 usb_unanchor_urb(urb);
363 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
365 struct btusb_data *data = hdev->driver_data;
371 BT_DBG("%s", hdev->name);
376 urb = usb_alloc_urb(0, mem_flags);
380 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
382 buf = kmalloc(size, mem_flags);
388 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
390 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
391 btusb_intr_complete, hdev,
392 data->intr_ep->bInterval);
394 urb->transfer_flags |= URB_FREE_BUFFER;
396 usb_anchor_urb(urb, &data->intr_anchor);
398 err = usb_submit_urb(urb, mem_flags);
400 BT_ERR("%s urb %p submission failed (%d)",
401 hdev->name, urb, -err);
402 usb_unanchor_urb(urb);
410 static void btusb_bulk_complete(struct urb *urb)
412 struct hci_dev *hdev = urb->context;
413 struct btusb_data *data = hdev->driver_data;
416 BT_DBG("%s urb %p status %d count %d", hdev->name,
417 urb, urb->status, urb->actual_length);
419 if (!test_bit(HCI_RUNNING, &hdev->flags))
422 if (urb->status == 0) {
423 hdev->stat.byte_rx += urb->actual_length;
425 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
426 urb->transfer_buffer,
427 urb->actual_length) < 0) {
428 BT_ERR("%s corrupted ACL packet", hdev->name);
431 } else if (urb->status == -ENOENT) {
432 /* Avoid suspend failed when usb_kill_urb */
436 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
439 usb_anchor_urb(urb, &data->bulk_anchor);
440 usb_mark_last_busy(data->udev);
442 err = usb_submit_urb(urb, GFP_ATOMIC);
444 /* -EPERM: urb is being killed;
445 * -ENODEV: device got disconnected */
446 if (err != -EPERM && err != -ENODEV)
447 BT_ERR("%s urb %p failed to resubmit (%d)",
448 hdev->name, urb, -err);
449 usb_unanchor_urb(urb);
453 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
455 struct btusb_data *data = hdev->driver_data;
459 int err, size = HCI_MAX_FRAME_SIZE;
461 BT_DBG("%s", hdev->name);
463 if (!data->bulk_rx_ep)
466 urb = usb_alloc_urb(0, mem_flags);
470 buf = kmalloc(size, mem_flags);
476 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
478 usb_fill_bulk_urb(urb, data->udev, pipe,
479 buf, size, btusb_bulk_complete, hdev);
481 urb->transfer_flags |= URB_FREE_BUFFER;
483 usb_mark_last_busy(data->udev);
484 usb_anchor_urb(urb, &data->bulk_anchor);
486 err = usb_submit_urb(urb, mem_flags);
488 BT_ERR("%s urb %p submission failed (%d)",
489 hdev->name, urb, -err);
490 usb_unanchor_urb(urb);
498 static void btusb_isoc_complete(struct urb *urb)
500 struct hci_dev *hdev = urb->context;
501 struct btusb_data *data = hdev->driver_data;
504 BT_DBG("%s urb %p status %d count %d", hdev->name,
505 urb, urb->status, urb->actual_length);
507 if (!test_bit(HCI_RUNNING, &hdev->flags))
510 if (urb->status == 0) {
511 for (i = 0; i < urb->number_of_packets; i++) {
512 unsigned int offset = urb->iso_frame_desc[i].offset;
513 unsigned int length = urb->iso_frame_desc[i].actual_length;
515 if (urb->iso_frame_desc[i].status)
518 hdev->stat.byte_rx += length;
520 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
521 urb->transfer_buffer + offset,
523 BT_ERR("%s corrupted SCO packet", hdev->name);
527 } else if (urb->status == -ENOENT) {
528 /* Avoid suspend failed when usb_kill_urb */
532 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
535 usb_anchor_urb(urb, &data->isoc_anchor);
537 err = usb_submit_urb(urb, GFP_ATOMIC);
539 /* -EPERM: urb is being killed;
540 * -ENODEV: device got disconnected */
541 if (err != -EPERM && err != -ENODEV)
542 BT_ERR("%s urb %p failed to resubmit (%d)",
543 hdev->name, urb, -err);
544 usb_unanchor_urb(urb);
548 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
552 BT_DBG("len %d mtu %d", len, mtu);
554 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
555 i++, offset += mtu, len -= mtu) {
556 urb->iso_frame_desc[i].offset = offset;
557 urb->iso_frame_desc[i].length = mtu;
560 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
561 urb->iso_frame_desc[i].offset = offset;
562 urb->iso_frame_desc[i].length = len;
566 urb->number_of_packets = i;
569 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
571 struct btusb_data *data = hdev->driver_data;
577 BT_DBG("%s", hdev->name);
579 if (!data->isoc_rx_ep)
582 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
586 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
587 BTUSB_MAX_ISOC_FRAMES;
589 buf = kmalloc(size, mem_flags);
595 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
597 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
598 hdev, data->isoc_rx_ep->bInterval);
600 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
602 __fill_isoc_descriptor(urb, size,
603 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
605 usb_anchor_urb(urb, &data->isoc_anchor);
607 err = usb_submit_urb(urb, mem_flags);
609 BT_ERR("%s urb %p submission failed (%d)",
610 hdev->name, urb, -err);
611 usb_unanchor_urb(urb);
619 static void btusb_tx_complete(struct urb *urb)
621 struct sk_buff *skb = urb->context;
622 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
623 struct btusb_data *data = hdev->driver_data;
625 BT_DBG("%s urb %p status %d count %d", hdev->name,
626 urb, urb->status, urb->actual_length);
628 if (!test_bit(HCI_RUNNING, &hdev->flags))
632 hdev->stat.byte_tx += urb->transfer_buffer_length;
637 spin_lock(&data->txlock);
638 data->tx_in_flight--;
639 spin_unlock(&data->txlock);
641 kfree(urb->setup_packet);
646 static void btusb_isoc_tx_complete(struct urb *urb)
648 struct sk_buff *skb = urb->context;
649 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
651 BT_DBG("%s urb %p status %d count %d", hdev->name,
652 urb, urb->status, urb->actual_length);
654 if (!test_bit(HCI_RUNNING, &hdev->flags))
658 hdev->stat.byte_tx += urb->transfer_buffer_length;
663 kfree(urb->setup_packet);
668 static int btusb_open(struct hci_dev *hdev)
670 struct btusb_data *data = hdev->driver_data;
673 BT_DBG("%s", hdev->name);
675 err = usb_autopm_get_interface(data->intf);
679 data->intf->needs_remote_wakeup = 1;
681 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
684 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
687 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
691 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
693 usb_kill_anchored_urbs(&data->intr_anchor);
697 set_bit(BTUSB_BULK_RUNNING, &data->flags);
698 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
701 usb_autopm_put_interface(data->intf);
705 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
706 clear_bit(HCI_RUNNING, &hdev->flags);
707 usb_autopm_put_interface(data->intf);
711 static void btusb_stop_traffic(struct btusb_data *data)
713 usb_kill_anchored_urbs(&data->intr_anchor);
714 usb_kill_anchored_urbs(&data->bulk_anchor);
715 usb_kill_anchored_urbs(&data->isoc_anchor);
718 static int btusb_close(struct hci_dev *hdev)
720 struct btusb_data *data = hdev->driver_data;
723 BT_DBG("%s", hdev->name);
725 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
728 cancel_work_sync(&data->work);
729 cancel_work_sync(&data->waker);
731 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
732 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
733 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
735 btusb_stop_traffic(data);
736 err = usb_autopm_get_interface(data->intf);
740 data->intf->needs_remote_wakeup = 0;
741 usb_autopm_put_interface(data->intf);
744 usb_scuttle_anchored_urbs(&data->deferred);
748 static int btusb_flush(struct hci_dev *hdev)
750 struct btusb_data *data = hdev->driver_data;
752 BT_DBG("%s", hdev->name);
754 usb_kill_anchored_urbs(&data->tx_anchor);
759 static int btusb_send_frame(struct sk_buff *skb)
761 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
762 struct btusb_data *data = hdev->driver_data;
763 struct usb_ctrlrequest *dr;
768 BT_DBG("%s", hdev->name);
770 if (!test_bit(HCI_RUNNING, &hdev->flags))
773 switch (bt_cb(skb)->pkt_type) {
774 case HCI_COMMAND_PKT:
775 urb = usb_alloc_urb(0, GFP_ATOMIC);
779 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
785 dr->bRequestType = data->cmdreq_type;
789 dr->wLength = __cpu_to_le16(skb->len);
791 pipe = usb_sndctrlpipe(data->udev, 0x00);
793 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
794 skb->data, skb->len, btusb_tx_complete, skb);
799 case HCI_ACLDATA_PKT:
800 if (!data->bulk_tx_ep)
803 urb = usb_alloc_urb(0, GFP_ATOMIC);
807 pipe = usb_sndbulkpipe(data->udev,
808 data->bulk_tx_ep->bEndpointAddress);
810 usb_fill_bulk_urb(urb, data->udev, pipe,
811 skb->data, skb->len, btusb_tx_complete, skb);
816 case HCI_SCODATA_PKT:
817 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
820 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
824 pipe = usb_sndisocpipe(data->udev,
825 data->isoc_tx_ep->bEndpointAddress);
827 usb_fill_int_urb(urb, data->udev, pipe,
828 skb->data, skb->len, btusb_isoc_tx_complete,
829 skb, data->isoc_tx_ep->bInterval);
831 urb->transfer_flags = URB_ISO_ASAP;
833 __fill_isoc_descriptor(urb, skb->len,
834 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
845 usb_anchor_urb(urb, &data->deferred);
846 schedule_work(&data->waker);
852 usb_anchor_urb(urb, &data->tx_anchor);
854 err = usb_submit_urb(urb, GFP_ATOMIC);
856 BT_ERR("%s urb %p submission failed", hdev->name, urb);
857 kfree(urb->setup_packet);
858 usb_unanchor_urb(urb);
860 usb_mark_last_busy(data->udev);
868 static void btusb_destruct(struct hci_dev *hdev)
870 struct btusb_data *data = hdev->driver_data;
872 BT_DBG("%s", hdev->name);
877 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
879 struct btusb_data *data = hdev->driver_data;
881 BT_DBG("%s evt %d", hdev->name, evt);
883 if (hdev->conn_hash.sco_num != data->sco_num) {
884 data->sco_num = hdev->conn_hash.sco_num;
885 schedule_work(&data->work);
889 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
891 struct btusb_data *data = hdev->driver_data;
892 struct usb_interface *intf = data->isoc;
893 struct usb_endpoint_descriptor *ep_desc;
899 err = usb_set_interface(data->udev, 1, altsetting);
901 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
905 data->isoc_altsetting = altsetting;
907 data->isoc_tx_ep = NULL;
908 data->isoc_rx_ep = NULL;
910 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
911 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
913 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
914 data->isoc_tx_ep = ep_desc;
918 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
919 data->isoc_rx_ep = ep_desc;
924 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
925 BT_ERR("%s invalid SCO descriptors", hdev->name);
932 static void btusb_work(struct work_struct *work)
934 struct btusb_data *data = container_of(work, struct btusb_data, work);
935 struct hci_dev *hdev = data->hdev;
938 if (hdev->conn_hash.sco_num > 0) {
939 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
940 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
942 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
943 usb_kill_anchored_urbs(&data->isoc_anchor);
947 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
949 if (data->isoc_altsetting != 2) {
950 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
951 usb_kill_anchored_urbs(&data->isoc_anchor);
953 if (__set_isoc_interface(hdev, 2) < 0)
957 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
958 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
959 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
961 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
964 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
965 usb_kill_anchored_urbs(&data->isoc_anchor);
967 __set_isoc_interface(hdev, 0);
968 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
969 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
973 static void btusb_waker(struct work_struct *work)
975 struct btusb_data *data = container_of(work, struct btusb_data, waker);
978 err = usb_autopm_get_interface(data->intf);
982 usb_autopm_put_interface(data->intf);
985 static int btusb_probe(struct usb_interface *intf,
986 const struct usb_device_id *id)
988 struct usb_endpoint_descriptor *ep_desc;
989 struct btusb_data *data;
990 struct hci_dev *hdev;
993 BT_DBG("intf %p id %p", intf, id);
995 /* interface numbers are hardcoded in the spec */
996 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
999 if (!id->driver_info) {
1000 const struct usb_device_id *match;
1001 match = usb_match_id(intf, blacklist_table);
1006 if (id->driver_info == BTUSB_IGNORE)
1009 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1012 if (ignore_csr && id->driver_info & BTUSB_CSR)
1015 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1018 if (id->driver_info & BTUSB_ATH3012) {
1019 struct usb_device *udev = interface_to_usbdev(intf);
1021 /* Old firmware would otherwise let ath3k driver load
1022 * patch and sysconfig files */
1023 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1027 data = kzalloc(sizeof(*data), GFP_KERNEL);
1031 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1032 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1034 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1035 data->intr_ep = ep_desc;
1039 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1040 data->bulk_tx_ep = ep_desc;
1044 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1045 data->bulk_rx_ep = ep_desc;
1050 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1055 data->cmdreq_type = USB_TYPE_CLASS;
1057 data->udev = interface_to_usbdev(intf);
1060 spin_lock_init(&data->lock);
1062 INIT_WORK(&data->work, btusb_work);
1063 INIT_WORK(&data->waker, btusb_waker);
1064 spin_lock_init(&data->txlock);
1066 init_usb_anchor(&data->tx_anchor);
1067 init_usb_anchor(&data->intr_anchor);
1068 init_usb_anchor(&data->bulk_anchor);
1069 init_usb_anchor(&data->isoc_anchor);
1070 init_usb_anchor(&data->deferred);
1072 hdev = hci_alloc_dev();
1078 hdev->bus = HCI_USB;
1079 hdev->driver_data = data;
1083 SET_HCIDEV_DEV(hdev, &intf->dev);
1085 hdev->open = btusb_open;
1086 hdev->close = btusb_close;
1087 hdev->flush = btusb_flush;
1088 hdev->send = btusb_send_frame;
1089 hdev->destruct = btusb_destruct;
1090 hdev->notify = btusb_notify;
1092 hdev->owner = THIS_MODULE;
1094 if (id->driver_info & BTUSB_INTEL_BOOT)
1095 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1097 /* Interface numbers are hardcoded in the specification */
1098 data->isoc = usb_ifnum_to_if(data->udev, 1);
1101 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1103 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1104 if (!disable_scofix)
1105 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1108 if (id->driver_info & BTUSB_BROKEN_ISOC)
1111 if (id->driver_info & BTUSB_DIGIANSWER) {
1112 data->cmdreq_type = USB_TYPE_VENDOR;
1113 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1116 if (id->driver_info & BTUSB_CSR) {
1117 struct usb_device *udev = data->udev;
1119 /* Old firmware would otherwise execute USB reset */
1120 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1121 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1124 if (id->driver_info & BTUSB_SNIFFER) {
1125 struct usb_device *udev = data->udev;
1127 /* New sniffer firmware has crippled HCI interface */
1128 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1129 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1134 if (id->driver_info & BTUSB_BCM92035) {
1135 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1136 struct sk_buff *skb;
1138 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1140 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1141 skb_queue_tail(&hdev->driver_init, skb);
1146 err = usb_driver_claim_interface(&btusb_driver,
1155 err = hci_register_dev(hdev);
1162 usb_set_intfdata(intf, data);
1167 static void btusb_disconnect(struct usb_interface *intf)
1169 struct btusb_data *data = usb_get_intfdata(intf);
1170 struct hci_dev *hdev;
1172 BT_DBG("intf %p", intf);
1179 __hci_dev_hold(hdev);
1181 usb_set_intfdata(data->intf, NULL);
1184 usb_set_intfdata(data->isoc, NULL);
1186 hci_unregister_dev(hdev);
1188 if (intf == data->isoc)
1189 usb_driver_release_interface(&btusb_driver, data->intf);
1190 else if (data->isoc)
1191 usb_driver_release_interface(&btusb_driver, data->isoc);
1193 __hci_dev_put(hdev);
1199 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1201 struct btusb_data *data = usb_get_intfdata(intf);
1203 BT_DBG("intf %p", intf);
1205 if (data->suspend_count++)
1208 spin_lock_irq(&data->txlock);
1209 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1210 set_bit(BTUSB_SUSPENDING, &data->flags);
1211 spin_unlock_irq(&data->txlock);
1213 spin_unlock_irq(&data->txlock);
1214 data->suspend_count--;
1218 cancel_work_sync(&data->work);
1220 btusb_stop_traffic(data);
1221 usb_kill_anchored_urbs(&data->tx_anchor);
1226 static void play_deferred(struct btusb_data *data)
1231 while ((urb = usb_get_from_anchor(&data->deferred))) {
1232 err = usb_submit_urb(urb, GFP_ATOMIC);
1236 data->tx_in_flight++;
1238 usb_scuttle_anchored_urbs(&data->deferred);
1241 static int btusb_resume(struct usb_interface *intf)
1243 struct btusb_data *data = usb_get_intfdata(intf);
1244 struct hci_dev *hdev = data->hdev;
1247 BT_DBG("intf %p", intf);
1249 if (--data->suspend_count)
1252 if (!test_bit(HCI_RUNNING, &hdev->flags))
1255 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1256 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1258 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1263 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1264 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1266 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1270 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1273 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1274 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1275 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1277 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1280 spin_lock_irq(&data->txlock);
1281 play_deferred(data);
1282 clear_bit(BTUSB_SUSPENDING, &data->flags);
1283 spin_unlock_irq(&data->txlock);
1284 schedule_work(&data->work);
1289 usb_scuttle_anchored_urbs(&data->deferred);
1291 spin_lock_irq(&data->txlock);
1292 clear_bit(BTUSB_SUSPENDING, &data->flags);
1293 spin_unlock_irq(&data->txlock);
1299 static struct usb_driver btusb_driver = {
1301 .probe = btusb_probe,
1302 .disconnect = btusb_disconnect,
1304 .suspend = btusb_suspend,
1305 .resume = btusb_resume,
1307 .id_table = btusb_table,
1308 .supports_autosuspend = 1,
1311 static int __init btusb_init(void)
1313 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1315 return usb_register(&btusb_driver);
1318 static void __exit btusb_exit(void)
1320 usb_deregister(&btusb_driver);
1323 module_init(btusb_init);
1324 module_exit(btusb_exit);
1326 module_param(ignore_dga, bool, 0644);
1327 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1329 module_param(ignore_csr, bool, 0644);
1330 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1332 module_param(ignore_sniffer, bool, 0644);
1333 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1335 module_param(disable_scofix, bool, 0644);
1336 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1338 module_param(force_scofix, bool, 0644);
1339 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1341 module_param(reset, bool, 0644);
1342 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1344 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1345 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1346 MODULE_VERSION(VERSION);
1347 MODULE_LICENSE("GPL");