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(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
206 /* Atheros AR5BBU12 with sflash firmware */
207 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
209 /* Atheros AR5BBU12 with sflash firmware */
210 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
213 /* Broadcom BCM2035 */
214 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
215 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
216 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
218 /* Broadcom BCM2045 */
219 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
220 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
222 /* IBM/Lenovo ThinkPad with Broadcom chip */
223 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
224 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
226 /* HP laptop with Broadcom chip */
227 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
229 /* Dell laptop with Broadcom chip */
230 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
232 /* Dell Wireless 370 and 410 devices */
233 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
234 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
236 /* Belkin F8T012 and F8T013 devices */
237 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
238 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
240 /* Asus WL-BTD202 device */
241 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* Kensington Bluetooth USB adapter */
244 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
246 /* RTX Telecom based adapters with buggy SCO support */
247 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
248 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
250 /* CONWISE Technology based adapters with buggy SCO support */
251 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
253 /* Digianswer devices */
254 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
255 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
257 /* CSR BlueCore Bluetooth Sniffer */
258 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
260 /* Frontline ComProbe Bluetooth Sniffer */
261 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
263 { } /* Terminating entry */
266 #define BTUSB_MAX_ISOC_FRAMES 10
268 #define BTUSB_INTR_RUNNING 0
269 #define BTUSB_BULK_RUNNING 1
270 #define BTUSB_ISOC_RUNNING 2
271 #define BTUSB_SUSPENDING 3
272 #define BTUSB_DID_ISO_RESUME 4
275 struct hci_dev *hdev;
276 struct usb_device *udev;
277 struct usb_interface *intf;
278 struct usb_interface *isoc;
284 struct work_struct work;
285 struct work_struct waker;
287 struct usb_anchor tx_anchor;
288 struct usb_anchor intr_anchor;
289 struct usb_anchor bulk_anchor;
290 struct usb_anchor isoc_anchor;
291 struct usb_anchor deferred;
295 struct usb_endpoint_descriptor *intr_ep;
296 struct usb_endpoint_descriptor *bulk_tx_ep;
297 struct usb_endpoint_descriptor *bulk_rx_ep;
298 struct usb_endpoint_descriptor *isoc_tx_ep;
299 struct usb_endpoint_descriptor *isoc_rx_ep;
303 unsigned int sco_num;
308 static int inc_tx(struct btusb_data *data)
313 spin_lock_irqsave(&data->txlock, flags);
314 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
316 data->tx_in_flight++;
317 spin_unlock_irqrestore(&data->txlock, flags);
322 static void btusb_intr_complete(struct urb *urb)
324 struct hci_dev *hdev = urb->context;
325 struct btusb_data *data = hdev->driver_data;
328 BT_DBG("%s urb %p status %d count %d", hdev->name,
329 urb, urb->status, urb->actual_length);
331 if (!test_bit(HCI_RUNNING, &hdev->flags))
334 if (urb->status == 0) {
335 hdev->stat.byte_rx += urb->actual_length;
337 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
338 urb->transfer_buffer,
339 urb->actual_length) < 0) {
340 BT_ERR("%s corrupted event packet", hdev->name);
343 } else if (urb->status == -ENOENT) {
344 /* Avoid suspend failed when usb_kill_urb */
348 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
351 usb_mark_last_busy(data->udev);
352 usb_anchor_urb(urb, &data->intr_anchor);
354 err = usb_submit_urb(urb, GFP_ATOMIC);
356 /* -EPERM: urb is being killed;
357 * -ENODEV: device got disconnected */
358 if (err != -EPERM && err != -ENODEV)
359 BT_ERR("%s urb %p failed to resubmit (%d)",
360 hdev->name, urb, -err);
361 usb_unanchor_urb(urb);
365 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
367 struct btusb_data *data = hdev->driver_data;
373 BT_DBG("%s", hdev->name);
378 urb = usb_alloc_urb(0, mem_flags);
382 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
384 buf = kmalloc(size, mem_flags);
390 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
392 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
393 btusb_intr_complete, hdev,
394 data->intr_ep->bInterval);
396 urb->transfer_flags |= URB_FREE_BUFFER;
398 usb_anchor_urb(urb, &data->intr_anchor);
400 err = usb_submit_urb(urb, mem_flags);
402 BT_ERR("%s urb %p submission failed (%d)",
403 hdev->name, urb, -err);
404 usb_unanchor_urb(urb);
412 static void btusb_bulk_complete(struct urb *urb)
414 struct hci_dev *hdev = urb->context;
415 struct btusb_data *data = hdev->driver_data;
418 BT_DBG("%s urb %p status %d count %d", hdev->name,
419 urb, urb->status, urb->actual_length);
421 if (!test_bit(HCI_RUNNING, &hdev->flags))
424 if (urb->status == 0) {
425 hdev->stat.byte_rx += urb->actual_length;
427 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
428 urb->transfer_buffer,
429 urb->actual_length) < 0) {
430 BT_ERR("%s corrupted ACL packet", hdev->name);
433 } else if (urb->status == -ENOENT) {
434 /* Avoid suspend failed when usb_kill_urb */
438 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
441 usb_anchor_urb(urb, &data->bulk_anchor);
442 usb_mark_last_busy(data->udev);
444 err = usb_submit_urb(urb, GFP_ATOMIC);
446 /* -EPERM: urb is being killed;
447 * -ENODEV: device got disconnected */
448 if (err != -EPERM && err != -ENODEV)
449 BT_ERR("%s urb %p failed to resubmit (%d)",
450 hdev->name, urb, -err);
451 usb_unanchor_urb(urb);
455 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
457 struct btusb_data *data = hdev->driver_data;
461 int err, size = HCI_MAX_FRAME_SIZE;
463 BT_DBG("%s", hdev->name);
465 if (!data->bulk_rx_ep)
468 urb = usb_alloc_urb(0, mem_flags);
472 buf = kmalloc(size, mem_flags);
478 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
480 usb_fill_bulk_urb(urb, data->udev, pipe,
481 buf, size, btusb_bulk_complete, hdev);
483 urb->transfer_flags |= URB_FREE_BUFFER;
485 usb_mark_last_busy(data->udev);
486 usb_anchor_urb(urb, &data->bulk_anchor);
488 err = usb_submit_urb(urb, mem_flags);
490 BT_ERR("%s urb %p submission failed (%d)",
491 hdev->name, urb, -err);
492 usb_unanchor_urb(urb);
500 static void btusb_isoc_complete(struct urb *urb)
502 struct hci_dev *hdev = urb->context;
503 struct btusb_data *data = hdev->driver_data;
506 BT_DBG("%s urb %p status %d count %d", hdev->name,
507 urb, urb->status, urb->actual_length);
509 if (!test_bit(HCI_RUNNING, &hdev->flags))
512 if (urb->status == 0) {
513 for (i = 0; i < urb->number_of_packets; i++) {
514 unsigned int offset = urb->iso_frame_desc[i].offset;
515 unsigned int length = urb->iso_frame_desc[i].actual_length;
517 if (urb->iso_frame_desc[i].status)
520 hdev->stat.byte_rx += length;
522 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
523 urb->transfer_buffer + offset,
525 BT_ERR("%s corrupted SCO packet", hdev->name);
529 } else if (urb->status == -ENOENT) {
530 /* Avoid suspend failed when usb_kill_urb */
534 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
537 usb_anchor_urb(urb, &data->isoc_anchor);
539 err = usb_submit_urb(urb, GFP_ATOMIC);
541 /* -EPERM: urb is being killed;
542 * -ENODEV: device got disconnected */
543 if (err != -EPERM && err != -ENODEV)
544 BT_ERR("%s urb %p failed to resubmit (%d)",
545 hdev->name, urb, -err);
546 usb_unanchor_urb(urb);
550 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
554 BT_DBG("len %d mtu %d", len, mtu);
556 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
557 i++, offset += mtu, len -= mtu) {
558 urb->iso_frame_desc[i].offset = offset;
559 urb->iso_frame_desc[i].length = mtu;
562 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
563 urb->iso_frame_desc[i].offset = offset;
564 urb->iso_frame_desc[i].length = len;
568 urb->number_of_packets = i;
571 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
573 struct btusb_data *data = hdev->driver_data;
579 BT_DBG("%s", hdev->name);
581 if (!data->isoc_rx_ep)
584 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
588 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
589 BTUSB_MAX_ISOC_FRAMES;
591 buf = kmalloc(size, mem_flags);
597 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
599 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
600 hdev, data->isoc_rx_ep->bInterval);
602 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
604 __fill_isoc_descriptor(urb, size,
605 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
607 usb_anchor_urb(urb, &data->isoc_anchor);
609 err = usb_submit_urb(urb, mem_flags);
611 BT_ERR("%s urb %p submission failed (%d)",
612 hdev->name, urb, -err);
613 usb_unanchor_urb(urb);
621 static void btusb_tx_complete(struct urb *urb)
623 struct sk_buff *skb = urb->context;
624 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
625 struct btusb_data *data = hdev->driver_data;
627 BT_DBG("%s urb %p status %d count %d", hdev->name,
628 urb, urb->status, urb->actual_length);
630 if (!test_bit(HCI_RUNNING, &hdev->flags))
634 hdev->stat.byte_tx += urb->transfer_buffer_length;
639 spin_lock(&data->txlock);
640 data->tx_in_flight--;
641 spin_unlock(&data->txlock);
643 kfree(urb->setup_packet);
648 static void btusb_isoc_tx_complete(struct urb *urb)
650 struct sk_buff *skb = urb->context;
651 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
653 BT_DBG("%s urb %p status %d count %d", hdev->name,
654 urb, urb->status, urb->actual_length);
656 if (!test_bit(HCI_RUNNING, &hdev->flags))
660 hdev->stat.byte_tx += urb->transfer_buffer_length;
665 kfree(urb->setup_packet);
670 static int btusb_open(struct hci_dev *hdev)
672 struct btusb_data *data = hdev->driver_data;
675 BT_DBG("%s", hdev->name);
677 err = usb_autopm_get_interface(data->intf);
681 data->intf->needs_remote_wakeup = 1;
683 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
686 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
689 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
693 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
695 usb_kill_anchored_urbs(&data->intr_anchor);
699 set_bit(BTUSB_BULK_RUNNING, &data->flags);
700 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
703 usb_autopm_put_interface(data->intf);
707 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
708 clear_bit(HCI_RUNNING, &hdev->flags);
709 usb_autopm_put_interface(data->intf);
713 static void btusb_stop_traffic(struct btusb_data *data)
715 usb_kill_anchored_urbs(&data->intr_anchor);
716 usb_kill_anchored_urbs(&data->bulk_anchor);
717 usb_kill_anchored_urbs(&data->isoc_anchor);
720 static int btusb_close(struct hci_dev *hdev)
722 struct btusb_data *data = hdev->driver_data;
725 BT_DBG("%s", hdev->name);
727 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
730 cancel_work_sync(&data->work);
731 cancel_work_sync(&data->waker);
733 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
734 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
735 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
737 btusb_stop_traffic(data);
738 err = usb_autopm_get_interface(data->intf);
742 data->intf->needs_remote_wakeup = 0;
743 usb_autopm_put_interface(data->intf);
746 usb_scuttle_anchored_urbs(&data->deferred);
750 static int btusb_flush(struct hci_dev *hdev)
752 struct btusb_data *data = hdev->driver_data;
754 BT_DBG("%s", hdev->name);
756 usb_kill_anchored_urbs(&data->tx_anchor);
761 static int btusb_send_frame(struct sk_buff *skb)
763 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
764 struct btusb_data *data = hdev->driver_data;
765 struct usb_ctrlrequest *dr;
770 BT_DBG("%s", hdev->name);
772 if (!test_bit(HCI_RUNNING, &hdev->flags))
775 switch (bt_cb(skb)->pkt_type) {
776 case HCI_COMMAND_PKT:
777 urb = usb_alloc_urb(0, GFP_ATOMIC);
781 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
787 dr->bRequestType = data->cmdreq_type;
791 dr->wLength = __cpu_to_le16(skb->len);
793 pipe = usb_sndctrlpipe(data->udev, 0x00);
795 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
796 skb->data, skb->len, btusb_tx_complete, skb);
801 case HCI_ACLDATA_PKT:
802 if (!data->bulk_tx_ep)
805 urb = usb_alloc_urb(0, GFP_ATOMIC);
809 pipe = usb_sndbulkpipe(data->udev,
810 data->bulk_tx_ep->bEndpointAddress);
812 usb_fill_bulk_urb(urb, data->udev, pipe,
813 skb->data, skb->len, btusb_tx_complete, skb);
818 case HCI_SCODATA_PKT:
819 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
822 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
826 pipe = usb_sndisocpipe(data->udev,
827 data->isoc_tx_ep->bEndpointAddress);
829 usb_fill_int_urb(urb, data->udev, pipe,
830 skb->data, skb->len, btusb_isoc_tx_complete,
831 skb, data->isoc_tx_ep->bInterval);
833 urb->transfer_flags = URB_ISO_ASAP;
835 __fill_isoc_descriptor(urb, skb->len,
836 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
847 usb_anchor_urb(urb, &data->deferred);
848 schedule_work(&data->waker);
854 usb_anchor_urb(urb, &data->tx_anchor);
856 err = usb_submit_urb(urb, GFP_ATOMIC);
858 BT_ERR("%s urb %p submission failed", hdev->name, urb);
859 kfree(urb->setup_packet);
860 usb_unanchor_urb(urb);
862 usb_mark_last_busy(data->udev);
870 static void btusb_destruct(struct hci_dev *hdev)
872 struct btusb_data *data = hdev->driver_data;
874 BT_DBG("%s", hdev->name);
879 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
881 struct btusb_data *data = hdev->driver_data;
883 BT_DBG("%s evt %d", hdev->name, evt);
885 if (hdev->conn_hash.sco_num != data->sco_num) {
886 data->sco_num = hdev->conn_hash.sco_num;
887 schedule_work(&data->work);
891 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
893 struct btusb_data *data = hdev->driver_data;
894 struct usb_interface *intf = data->isoc;
895 struct usb_endpoint_descriptor *ep_desc;
901 err = usb_set_interface(data->udev, 1, altsetting);
903 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
907 data->isoc_altsetting = altsetting;
909 data->isoc_tx_ep = NULL;
910 data->isoc_rx_ep = NULL;
912 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
913 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
915 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
916 data->isoc_tx_ep = ep_desc;
920 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
921 data->isoc_rx_ep = ep_desc;
926 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
927 BT_ERR("%s invalid SCO descriptors", hdev->name);
934 static void btusb_work(struct work_struct *work)
936 struct btusb_data *data = container_of(work, struct btusb_data, work);
937 struct hci_dev *hdev = data->hdev;
940 if (hdev->conn_hash.sco_num > 0) {
941 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
942 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
944 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
945 usb_kill_anchored_urbs(&data->isoc_anchor);
949 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
951 if (data->isoc_altsetting != 2) {
952 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
953 usb_kill_anchored_urbs(&data->isoc_anchor);
955 if (__set_isoc_interface(hdev, 2) < 0)
959 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
960 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
961 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
963 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
966 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
967 usb_kill_anchored_urbs(&data->isoc_anchor);
969 __set_isoc_interface(hdev, 0);
970 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
971 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
975 static void btusb_waker(struct work_struct *work)
977 struct btusb_data *data = container_of(work, struct btusb_data, waker);
980 err = usb_autopm_get_interface(data->intf);
984 usb_autopm_put_interface(data->intf);
987 static int btusb_probe(struct usb_interface *intf,
988 const struct usb_device_id *id)
990 struct usb_endpoint_descriptor *ep_desc;
991 struct btusb_data *data;
992 struct hci_dev *hdev;
995 BT_DBG("intf %p id %p", intf, id);
997 /* interface numbers are hardcoded in the spec */
998 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1001 if (!id->driver_info) {
1002 const struct usb_device_id *match;
1003 match = usb_match_id(intf, blacklist_table);
1008 if (id->driver_info == BTUSB_IGNORE)
1011 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1014 if (ignore_csr && id->driver_info & BTUSB_CSR)
1017 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1020 if (id->driver_info & BTUSB_ATH3012) {
1021 struct usb_device *udev = interface_to_usbdev(intf);
1023 /* Old firmware would otherwise let ath3k driver load
1024 * patch and sysconfig files */
1025 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1029 data = kzalloc(sizeof(*data), GFP_KERNEL);
1033 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1034 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1036 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1037 data->intr_ep = ep_desc;
1041 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1042 data->bulk_tx_ep = ep_desc;
1046 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1047 data->bulk_rx_ep = ep_desc;
1052 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1057 data->cmdreq_type = USB_TYPE_CLASS;
1059 data->udev = interface_to_usbdev(intf);
1062 spin_lock_init(&data->lock);
1064 INIT_WORK(&data->work, btusb_work);
1065 INIT_WORK(&data->waker, btusb_waker);
1066 spin_lock_init(&data->txlock);
1068 init_usb_anchor(&data->tx_anchor);
1069 init_usb_anchor(&data->intr_anchor);
1070 init_usb_anchor(&data->bulk_anchor);
1071 init_usb_anchor(&data->isoc_anchor);
1072 init_usb_anchor(&data->deferred);
1074 hdev = hci_alloc_dev();
1080 hdev->bus = HCI_USB;
1081 hdev->driver_data = data;
1085 SET_HCIDEV_DEV(hdev, &intf->dev);
1087 hdev->open = btusb_open;
1088 hdev->close = btusb_close;
1089 hdev->flush = btusb_flush;
1090 hdev->send = btusb_send_frame;
1091 hdev->destruct = btusb_destruct;
1092 hdev->notify = btusb_notify;
1094 hdev->owner = THIS_MODULE;
1096 if (id->driver_info & BTUSB_INTEL_BOOT)
1097 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1099 /* Interface numbers are hardcoded in the specification */
1100 data->isoc = usb_ifnum_to_if(data->udev, 1);
1103 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1105 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1106 if (!disable_scofix)
1107 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1110 if (id->driver_info & BTUSB_BROKEN_ISOC)
1113 if (id->driver_info & BTUSB_DIGIANSWER) {
1114 data->cmdreq_type = USB_TYPE_VENDOR;
1115 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1118 if (id->driver_info & BTUSB_CSR) {
1119 struct usb_device *udev = data->udev;
1121 /* Old firmware would otherwise execute USB reset */
1122 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1123 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1126 if (id->driver_info & BTUSB_SNIFFER) {
1127 struct usb_device *udev = data->udev;
1129 /* New sniffer firmware has crippled HCI interface */
1130 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1131 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1136 if (id->driver_info & BTUSB_BCM92035) {
1137 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1138 struct sk_buff *skb;
1140 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1142 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1143 skb_queue_tail(&hdev->driver_init, skb);
1148 err = usb_driver_claim_interface(&btusb_driver,
1157 err = hci_register_dev(hdev);
1164 usb_set_intfdata(intf, data);
1169 static void btusb_disconnect(struct usb_interface *intf)
1171 struct btusb_data *data = usb_get_intfdata(intf);
1172 struct hci_dev *hdev;
1174 BT_DBG("intf %p", intf);
1181 __hci_dev_hold(hdev);
1183 usb_set_intfdata(data->intf, NULL);
1186 usb_set_intfdata(data->isoc, NULL);
1188 hci_unregister_dev(hdev);
1190 if (intf == data->isoc)
1191 usb_driver_release_interface(&btusb_driver, data->intf);
1192 else if (data->isoc)
1193 usb_driver_release_interface(&btusb_driver, data->isoc);
1195 __hci_dev_put(hdev);
1201 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1203 struct btusb_data *data = usb_get_intfdata(intf);
1205 BT_DBG("intf %p", intf);
1207 if (data->suspend_count++)
1210 spin_lock_irq(&data->txlock);
1211 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1212 set_bit(BTUSB_SUSPENDING, &data->flags);
1213 spin_unlock_irq(&data->txlock);
1215 spin_unlock_irq(&data->txlock);
1216 data->suspend_count--;
1220 cancel_work_sync(&data->work);
1222 btusb_stop_traffic(data);
1223 usb_kill_anchored_urbs(&data->tx_anchor);
1228 static void play_deferred(struct btusb_data *data)
1233 while ((urb = usb_get_from_anchor(&data->deferred))) {
1234 err = usb_submit_urb(urb, GFP_ATOMIC);
1238 data->tx_in_flight++;
1240 usb_scuttle_anchored_urbs(&data->deferred);
1243 static int btusb_resume(struct usb_interface *intf)
1245 struct btusb_data *data = usb_get_intfdata(intf);
1246 struct hci_dev *hdev = data->hdev;
1249 BT_DBG("intf %p", intf);
1251 if (--data->suspend_count)
1254 if (!test_bit(HCI_RUNNING, &hdev->flags))
1257 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1258 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1260 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1265 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1266 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1268 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1272 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1275 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1276 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1277 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1279 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1282 spin_lock_irq(&data->txlock);
1283 play_deferred(data);
1284 clear_bit(BTUSB_SUSPENDING, &data->flags);
1285 spin_unlock_irq(&data->txlock);
1286 schedule_work(&data->work);
1291 usb_scuttle_anchored_urbs(&data->deferred);
1293 spin_lock_irq(&data->txlock);
1294 clear_bit(BTUSB_SUSPENDING, &data->flags);
1295 spin_unlock_irq(&data->txlock);
1301 static struct usb_driver btusb_driver = {
1303 .probe = btusb_probe,
1304 .disconnect = btusb_disconnect,
1306 .suspend = btusb_suspend,
1307 .resume = btusb_resume,
1309 .id_table = btusb_table,
1310 .supports_autosuspend = 1,
1313 static int __init btusb_init(void)
1315 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1317 return usb_register(&btusb_driver);
1320 static void __exit btusb_exit(void)
1322 usb_deregister(&btusb_driver);
1325 module_init(btusb_init);
1326 module_exit(btusb_exit);
1328 module_param(ignore_dga, bool, 0644);
1329 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1331 module_param(ignore_csr, bool, 0644);
1332 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1334 module_param(ignore_sniffer, bool, 0644);
1335 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1337 module_param(disable_scofix, bool, 0644);
1338 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1340 module_param(force_scofix, bool, 0644);
1341 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1343 module_param(reset, bool, 0644);
1344 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1346 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1347 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1348 MODULE_VERSION(VERSION);
1349 MODULE_LICENSE("GPL");