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, 0x3402), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
203 /* Atheros AR5BBU12 with sflash firmware */
204 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
206 /* Atheros AR5BBU12 with sflash firmware */
207 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
210 /* Broadcom BCM2035 */
211 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
212 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
213 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
215 /* Broadcom BCM2045 */
216 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
217 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
219 /* IBM/Lenovo ThinkPad with Broadcom chip */
220 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
221 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
223 /* HP laptop with Broadcom chip */
224 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
226 /* Dell laptop with Broadcom chip */
227 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
229 /* Dell Wireless 370 and 410 devices */
230 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
231 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
233 /* Belkin F8T012 and F8T013 devices */
234 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
235 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
237 /* Asus WL-BTD202 device */
238 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
240 /* Kensington Bluetooth USB adapter */
241 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* RTX Telecom based adapters with buggy SCO support */
244 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
245 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
247 /* CONWISE Technology based adapters with buggy SCO support */
248 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
250 /* Digianswer devices */
251 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
252 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
254 /* CSR BlueCore Bluetooth Sniffer */
255 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
257 /* Frontline ComProbe Bluetooth Sniffer */
258 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
260 { } /* Terminating entry */
263 #define BTUSB_MAX_ISOC_FRAMES 10
265 #define BTUSB_INTR_RUNNING 0
266 #define BTUSB_BULK_RUNNING 1
267 #define BTUSB_ISOC_RUNNING 2
268 #define BTUSB_SUSPENDING 3
269 #define BTUSB_DID_ISO_RESUME 4
272 struct hci_dev *hdev;
273 struct usb_device *udev;
274 struct usb_interface *intf;
275 struct usb_interface *isoc;
281 struct work_struct work;
282 struct work_struct waker;
284 struct usb_anchor tx_anchor;
285 struct usb_anchor intr_anchor;
286 struct usb_anchor bulk_anchor;
287 struct usb_anchor isoc_anchor;
288 struct usb_anchor deferred;
292 struct usb_endpoint_descriptor *intr_ep;
293 struct usb_endpoint_descriptor *bulk_tx_ep;
294 struct usb_endpoint_descriptor *bulk_rx_ep;
295 struct usb_endpoint_descriptor *isoc_tx_ep;
296 struct usb_endpoint_descriptor *isoc_rx_ep;
300 unsigned int sco_num;
305 static int inc_tx(struct btusb_data *data)
310 spin_lock_irqsave(&data->txlock, flags);
311 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
313 data->tx_in_flight++;
314 spin_unlock_irqrestore(&data->txlock, flags);
319 static void btusb_intr_complete(struct urb *urb)
321 struct hci_dev *hdev = urb->context;
322 struct btusb_data *data = hdev->driver_data;
325 BT_DBG("%s urb %p status %d count %d", hdev->name,
326 urb, urb->status, urb->actual_length);
328 if (!test_bit(HCI_RUNNING, &hdev->flags))
331 if (urb->status == 0) {
332 hdev->stat.byte_rx += urb->actual_length;
334 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
335 urb->transfer_buffer,
336 urb->actual_length) < 0) {
337 BT_ERR("%s corrupted event packet", hdev->name);
340 } else if (urb->status == -ENOENT) {
341 /* Avoid suspend failed when usb_kill_urb */
345 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
348 usb_mark_last_busy(data->udev);
349 usb_anchor_urb(urb, &data->intr_anchor);
351 err = usb_submit_urb(urb, GFP_ATOMIC);
353 /* -EPERM: urb is being killed;
354 * -ENODEV: device got disconnected */
355 if (err != -EPERM && err != -ENODEV)
356 BT_ERR("%s urb %p failed to resubmit (%d)",
357 hdev->name, urb, -err);
358 usb_unanchor_urb(urb);
362 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
364 struct btusb_data *data = hdev->driver_data;
370 BT_DBG("%s", hdev->name);
375 urb = usb_alloc_urb(0, mem_flags);
379 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
381 buf = kmalloc(size, mem_flags);
387 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
389 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
390 btusb_intr_complete, hdev,
391 data->intr_ep->bInterval);
393 urb->transfer_flags |= URB_FREE_BUFFER;
395 usb_anchor_urb(urb, &data->intr_anchor);
397 err = usb_submit_urb(urb, mem_flags);
399 BT_ERR("%s urb %p submission failed (%d)",
400 hdev->name, urb, -err);
401 usb_unanchor_urb(urb);
409 static void btusb_bulk_complete(struct urb *urb)
411 struct hci_dev *hdev = urb->context;
412 struct btusb_data *data = hdev->driver_data;
415 BT_DBG("%s urb %p status %d count %d", hdev->name,
416 urb, urb->status, urb->actual_length);
418 if (!test_bit(HCI_RUNNING, &hdev->flags))
421 if (urb->status == 0) {
422 hdev->stat.byte_rx += urb->actual_length;
424 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
425 urb->transfer_buffer,
426 urb->actual_length) < 0) {
427 BT_ERR("%s corrupted ACL packet", hdev->name);
430 } else if (urb->status == -ENOENT) {
431 /* Avoid suspend failed when usb_kill_urb */
435 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
438 usb_anchor_urb(urb, &data->bulk_anchor);
439 usb_mark_last_busy(data->udev);
441 err = usb_submit_urb(urb, GFP_ATOMIC);
443 /* -EPERM: urb is being killed;
444 * -ENODEV: device got disconnected */
445 if (err != -EPERM && err != -ENODEV)
446 BT_ERR("%s urb %p failed to resubmit (%d)",
447 hdev->name, urb, -err);
448 usb_unanchor_urb(urb);
452 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
454 struct btusb_data *data = hdev->driver_data;
458 int err, size = HCI_MAX_FRAME_SIZE;
460 BT_DBG("%s", hdev->name);
462 if (!data->bulk_rx_ep)
465 urb = usb_alloc_urb(0, mem_flags);
469 buf = kmalloc(size, mem_flags);
475 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
477 usb_fill_bulk_urb(urb, data->udev, pipe,
478 buf, size, btusb_bulk_complete, hdev);
480 urb->transfer_flags |= URB_FREE_BUFFER;
482 usb_mark_last_busy(data->udev);
483 usb_anchor_urb(urb, &data->bulk_anchor);
485 err = usb_submit_urb(urb, mem_flags);
487 BT_ERR("%s urb %p submission failed (%d)",
488 hdev->name, urb, -err);
489 usb_unanchor_urb(urb);
497 static void btusb_isoc_complete(struct urb *urb)
499 struct hci_dev *hdev = urb->context;
500 struct btusb_data *data = hdev->driver_data;
503 BT_DBG("%s urb %p status %d count %d", hdev->name,
504 urb, urb->status, urb->actual_length);
506 if (!test_bit(HCI_RUNNING, &hdev->flags))
509 if (urb->status == 0) {
510 for (i = 0; i < urb->number_of_packets; i++) {
511 unsigned int offset = urb->iso_frame_desc[i].offset;
512 unsigned int length = urb->iso_frame_desc[i].actual_length;
514 if (urb->iso_frame_desc[i].status)
517 hdev->stat.byte_rx += length;
519 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
520 urb->transfer_buffer + offset,
522 BT_ERR("%s corrupted SCO packet", hdev->name);
526 } else if (urb->status == -ENOENT) {
527 /* Avoid suspend failed when usb_kill_urb */
531 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
534 usb_anchor_urb(urb, &data->isoc_anchor);
536 err = usb_submit_urb(urb, GFP_ATOMIC);
538 /* -EPERM: urb is being killed;
539 * -ENODEV: device got disconnected */
540 if (err != -EPERM && err != -ENODEV)
541 BT_ERR("%s urb %p failed to resubmit (%d)",
542 hdev->name, urb, -err);
543 usb_unanchor_urb(urb);
547 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
551 BT_DBG("len %d mtu %d", len, mtu);
553 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
554 i++, offset += mtu, len -= mtu) {
555 urb->iso_frame_desc[i].offset = offset;
556 urb->iso_frame_desc[i].length = mtu;
559 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
560 urb->iso_frame_desc[i].offset = offset;
561 urb->iso_frame_desc[i].length = len;
565 urb->number_of_packets = i;
568 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
570 struct btusb_data *data = hdev->driver_data;
576 BT_DBG("%s", hdev->name);
578 if (!data->isoc_rx_ep)
581 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
585 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
586 BTUSB_MAX_ISOC_FRAMES;
588 buf = kmalloc(size, mem_flags);
594 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
596 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
597 hdev, data->isoc_rx_ep->bInterval);
599 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
601 __fill_isoc_descriptor(urb, size,
602 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
604 usb_anchor_urb(urb, &data->isoc_anchor);
606 err = usb_submit_urb(urb, mem_flags);
608 BT_ERR("%s urb %p submission failed (%d)",
609 hdev->name, urb, -err);
610 usb_unanchor_urb(urb);
618 static void btusb_tx_complete(struct urb *urb)
620 struct sk_buff *skb = urb->context;
621 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
622 struct btusb_data *data = hdev->driver_data;
624 BT_DBG("%s urb %p status %d count %d", hdev->name,
625 urb, urb->status, urb->actual_length);
627 if (!test_bit(HCI_RUNNING, &hdev->flags))
631 hdev->stat.byte_tx += urb->transfer_buffer_length;
636 spin_lock(&data->txlock);
637 data->tx_in_flight--;
638 spin_unlock(&data->txlock);
640 kfree(urb->setup_packet);
645 static void btusb_isoc_tx_complete(struct urb *urb)
647 struct sk_buff *skb = urb->context;
648 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
650 BT_DBG("%s urb %p status %d count %d", hdev->name,
651 urb, urb->status, urb->actual_length);
653 if (!test_bit(HCI_RUNNING, &hdev->flags))
657 hdev->stat.byte_tx += urb->transfer_buffer_length;
662 kfree(urb->setup_packet);
667 static int btusb_open(struct hci_dev *hdev)
669 struct btusb_data *data = hdev->driver_data;
672 BT_DBG("%s", hdev->name);
674 err = usb_autopm_get_interface(data->intf);
678 data->intf->needs_remote_wakeup = 1;
680 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
683 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
686 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
690 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
692 usb_kill_anchored_urbs(&data->intr_anchor);
696 set_bit(BTUSB_BULK_RUNNING, &data->flags);
697 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
700 usb_autopm_put_interface(data->intf);
704 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
705 clear_bit(HCI_RUNNING, &hdev->flags);
706 usb_autopm_put_interface(data->intf);
710 static void btusb_stop_traffic(struct btusb_data *data)
712 usb_kill_anchored_urbs(&data->intr_anchor);
713 usb_kill_anchored_urbs(&data->bulk_anchor);
714 usb_kill_anchored_urbs(&data->isoc_anchor);
717 static int btusb_close(struct hci_dev *hdev)
719 struct btusb_data *data = hdev->driver_data;
722 BT_DBG("%s", hdev->name);
724 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
727 cancel_work_sync(&data->work);
728 cancel_work_sync(&data->waker);
730 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
731 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
732 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
734 btusb_stop_traffic(data);
735 err = usb_autopm_get_interface(data->intf);
739 data->intf->needs_remote_wakeup = 0;
740 usb_autopm_put_interface(data->intf);
743 usb_scuttle_anchored_urbs(&data->deferred);
747 static int btusb_flush(struct hci_dev *hdev)
749 struct btusb_data *data = hdev->driver_data;
751 BT_DBG("%s", hdev->name);
753 usb_kill_anchored_urbs(&data->tx_anchor);
758 static int btusb_send_frame(struct sk_buff *skb)
760 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
761 struct btusb_data *data = hdev->driver_data;
762 struct usb_ctrlrequest *dr;
767 BT_DBG("%s", hdev->name);
769 if (!test_bit(HCI_RUNNING, &hdev->flags))
772 switch (bt_cb(skb)->pkt_type) {
773 case HCI_COMMAND_PKT:
774 urb = usb_alloc_urb(0, GFP_ATOMIC);
778 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
784 dr->bRequestType = data->cmdreq_type;
788 dr->wLength = __cpu_to_le16(skb->len);
790 pipe = usb_sndctrlpipe(data->udev, 0x00);
792 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
793 skb->data, skb->len, btusb_tx_complete, skb);
798 case HCI_ACLDATA_PKT:
799 if (!data->bulk_tx_ep)
802 urb = usb_alloc_urb(0, GFP_ATOMIC);
806 pipe = usb_sndbulkpipe(data->udev,
807 data->bulk_tx_ep->bEndpointAddress);
809 usb_fill_bulk_urb(urb, data->udev, pipe,
810 skb->data, skb->len, btusb_tx_complete, skb);
815 case HCI_SCODATA_PKT:
816 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
819 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
823 pipe = usb_sndisocpipe(data->udev,
824 data->isoc_tx_ep->bEndpointAddress);
826 usb_fill_int_urb(urb, data->udev, pipe,
827 skb->data, skb->len, btusb_isoc_tx_complete,
828 skb, data->isoc_tx_ep->bInterval);
830 urb->transfer_flags = URB_ISO_ASAP;
832 __fill_isoc_descriptor(urb, skb->len,
833 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
844 usb_anchor_urb(urb, &data->deferred);
845 schedule_work(&data->waker);
851 usb_anchor_urb(urb, &data->tx_anchor);
853 err = usb_submit_urb(urb, GFP_ATOMIC);
855 BT_ERR("%s urb %p submission failed", hdev->name, urb);
856 kfree(urb->setup_packet);
857 usb_unanchor_urb(urb);
859 usb_mark_last_busy(data->udev);
867 static void btusb_destruct(struct hci_dev *hdev)
869 struct btusb_data *data = hdev->driver_data;
871 BT_DBG("%s", hdev->name);
876 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
878 struct btusb_data *data = hdev->driver_data;
880 BT_DBG("%s evt %d", hdev->name, evt);
882 if (hdev->conn_hash.sco_num != data->sco_num) {
883 data->sco_num = hdev->conn_hash.sco_num;
884 schedule_work(&data->work);
888 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
890 struct btusb_data *data = hdev->driver_data;
891 struct usb_interface *intf = data->isoc;
892 struct usb_endpoint_descriptor *ep_desc;
898 err = usb_set_interface(data->udev, 1, altsetting);
900 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
904 data->isoc_altsetting = altsetting;
906 data->isoc_tx_ep = NULL;
907 data->isoc_rx_ep = NULL;
909 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
910 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
912 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
913 data->isoc_tx_ep = ep_desc;
917 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
918 data->isoc_rx_ep = ep_desc;
923 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
924 BT_ERR("%s invalid SCO descriptors", hdev->name);
931 static void btusb_work(struct work_struct *work)
933 struct btusb_data *data = container_of(work, struct btusb_data, work);
934 struct hci_dev *hdev = data->hdev;
937 if (hdev->conn_hash.sco_num > 0) {
938 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
939 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
941 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
942 usb_kill_anchored_urbs(&data->isoc_anchor);
946 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
948 if (data->isoc_altsetting != 2) {
949 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
950 usb_kill_anchored_urbs(&data->isoc_anchor);
952 if (__set_isoc_interface(hdev, 2) < 0)
956 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
957 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
958 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
960 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
963 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
964 usb_kill_anchored_urbs(&data->isoc_anchor);
966 __set_isoc_interface(hdev, 0);
967 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
968 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
972 static void btusb_waker(struct work_struct *work)
974 struct btusb_data *data = container_of(work, struct btusb_data, waker);
977 err = usb_autopm_get_interface(data->intf);
981 usb_autopm_put_interface(data->intf);
984 static int btusb_probe(struct usb_interface *intf,
985 const struct usb_device_id *id)
987 struct usb_endpoint_descriptor *ep_desc;
988 struct btusb_data *data;
989 struct hci_dev *hdev;
992 BT_DBG("intf %p id %p", intf, id);
994 /* interface numbers are hardcoded in the spec */
995 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
998 if (!id->driver_info) {
999 const struct usb_device_id *match;
1000 match = usb_match_id(intf, blacklist_table);
1005 if (id->driver_info == BTUSB_IGNORE)
1008 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1011 if (ignore_csr && id->driver_info & BTUSB_CSR)
1014 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1017 if (id->driver_info & BTUSB_ATH3012) {
1018 struct usb_device *udev = interface_to_usbdev(intf);
1020 /* Old firmware would otherwise let ath3k driver load
1021 * patch and sysconfig files */
1022 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1026 data = kzalloc(sizeof(*data), GFP_KERNEL);
1030 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1031 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1033 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1034 data->intr_ep = ep_desc;
1038 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1039 data->bulk_tx_ep = ep_desc;
1043 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1044 data->bulk_rx_ep = ep_desc;
1049 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1054 data->cmdreq_type = USB_TYPE_CLASS;
1056 data->udev = interface_to_usbdev(intf);
1059 spin_lock_init(&data->lock);
1061 INIT_WORK(&data->work, btusb_work);
1062 INIT_WORK(&data->waker, btusb_waker);
1063 spin_lock_init(&data->txlock);
1065 init_usb_anchor(&data->tx_anchor);
1066 init_usb_anchor(&data->intr_anchor);
1067 init_usb_anchor(&data->bulk_anchor);
1068 init_usb_anchor(&data->isoc_anchor);
1069 init_usb_anchor(&data->deferred);
1071 hdev = hci_alloc_dev();
1077 hdev->bus = HCI_USB;
1078 hdev->driver_data = data;
1082 SET_HCIDEV_DEV(hdev, &intf->dev);
1084 hdev->open = btusb_open;
1085 hdev->close = btusb_close;
1086 hdev->flush = btusb_flush;
1087 hdev->send = btusb_send_frame;
1088 hdev->destruct = btusb_destruct;
1089 hdev->notify = btusb_notify;
1091 hdev->owner = THIS_MODULE;
1093 if (id->driver_info & BTUSB_INTEL_BOOT)
1094 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1096 /* Interface numbers are hardcoded in the specification */
1097 data->isoc = usb_ifnum_to_if(data->udev, 1);
1100 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1102 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1103 if (!disable_scofix)
1104 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1107 if (id->driver_info & BTUSB_BROKEN_ISOC)
1110 if (id->driver_info & BTUSB_DIGIANSWER) {
1111 data->cmdreq_type = USB_TYPE_VENDOR;
1112 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1115 if (id->driver_info & BTUSB_CSR) {
1116 struct usb_device *udev = data->udev;
1118 /* Old firmware would otherwise execute USB reset */
1119 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1120 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1123 if (id->driver_info & BTUSB_SNIFFER) {
1124 struct usb_device *udev = data->udev;
1126 /* New sniffer firmware has crippled HCI interface */
1127 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1128 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1133 if (id->driver_info & BTUSB_BCM92035) {
1134 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1135 struct sk_buff *skb;
1137 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1139 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1140 skb_queue_tail(&hdev->driver_init, skb);
1145 err = usb_driver_claim_interface(&btusb_driver,
1154 err = hci_register_dev(hdev);
1161 usb_set_intfdata(intf, data);
1166 static void btusb_disconnect(struct usb_interface *intf)
1168 struct btusb_data *data = usb_get_intfdata(intf);
1169 struct hci_dev *hdev;
1171 BT_DBG("intf %p", intf);
1178 __hci_dev_hold(hdev);
1180 usb_set_intfdata(data->intf, NULL);
1183 usb_set_intfdata(data->isoc, NULL);
1185 hci_unregister_dev(hdev);
1187 if (intf == data->isoc)
1188 usb_driver_release_interface(&btusb_driver, data->intf);
1189 else if (data->isoc)
1190 usb_driver_release_interface(&btusb_driver, data->isoc);
1192 __hci_dev_put(hdev);
1198 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1200 struct btusb_data *data = usb_get_intfdata(intf);
1202 BT_DBG("intf %p", intf);
1204 if (data->suspend_count++)
1207 spin_lock_irq(&data->txlock);
1208 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1209 set_bit(BTUSB_SUSPENDING, &data->flags);
1210 spin_unlock_irq(&data->txlock);
1212 spin_unlock_irq(&data->txlock);
1213 data->suspend_count--;
1217 cancel_work_sync(&data->work);
1219 btusb_stop_traffic(data);
1220 usb_kill_anchored_urbs(&data->tx_anchor);
1225 static void play_deferred(struct btusb_data *data)
1230 while ((urb = usb_get_from_anchor(&data->deferred))) {
1231 err = usb_submit_urb(urb, GFP_ATOMIC);
1235 data->tx_in_flight++;
1237 usb_scuttle_anchored_urbs(&data->deferred);
1240 static int btusb_resume(struct usb_interface *intf)
1242 struct btusb_data *data = usb_get_intfdata(intf);
1243 struct hci_dev *hdev = data->hdev;
1246 BT_DBG("intf %p", intf);
1248 if (--data->suspend_count)
1251 if (!test_bit(HCI_RUNNING, &hdev->flags))
1254 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1255 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1257 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1262 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1263 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1265 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1269 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1272 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1273 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1274 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1276 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1279 spin_lock_irq(&data->txlock);
1280 play_deferred(data);
1281 clear_bit(BTUSB_SUSPENDING, &data->flags);
1282 spin_unlock_irq(&data->txlock);
1283 schedule_work(&data->work);
1288 usb_scuttle_anchored_urbs(&data->deferred);
1290 spin_lock_irq(&data->txlock);
1291 clear_bit(BTUSB_SUSPENDING, &data->flags);
1292 spin_unlock_irq(&data->txlock);
1298 static struct usb_driver btusb_driver = {
1300 .probe = btusb_probe,
1301 .disconnect = btusb_disconnect,
1303 .suspend = btusb_suspend,
1304 .resume = btusb_resume,
1306 .id_table = btusb_table,
1307 .supports_autosuspend = 1,
1310 static int __init btusb_init(void)
1312 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1314 return usb_register(&btusb_driver);
1317 static void __exit btusb_exit(void)
1319 usb_deregister(&btusb_driver);
1322 module_init(btusb_init);
1323 module_exit(btusb_exit);
1325 module_param(ignore_dga, bool, 0644);
1326 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1328 module_param(ignore_csr, bool, 0644);
1329 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1331 module_param(ignore_sniffer, bool, 0644);
1332 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1334 module_param(disable_scofix, bool, 0644);
1335 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1337 module_param(force_scofix, bool, 0644);
1338 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1340 module_param(reset, bool, 0644);
1341 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1343 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1344 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1345 MODULE_VERSION(VERSION);
1346 MODULE_LICENSE("GPL");