3 * Generic Bluetooth USB driver
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/types.h>
29 #include <linux/sched.h>
30 #include <linux/errno.h>
31 #include <linux/skbuff.h>
33 #include <linux/usb.h>
35 #include <net/bluetooth/bluetooth.h>
36 #include <net/bluetooth/hci_core.h>
40 static int ignore_dga;
41 static int ignore_csr;
42 static int ignore_sniffer;
43 static int disable_scofix;
44 static int force_scofix;
48 static struct usb_driver btusb_driver;
50 #define BTUSB_IGNORE 0x01
51 #define BTUSB_DIGIANSWER 0x02
52 #define BTUSB_CSR 0x04
53 #define BTUSB_SNIFFER 0x08
54 #define BTUSB_BCM92035 0x10
55 #define BTUSB_BROKEN_ISOC 0x20
56 #define BTUSB_WRONG_SCO_MTU 0x40
57 #define BTUSB_ATH3012 0x80
58 #define BTUSB_INTEL_BOOT 0x200
60 static struct usb_device_id btusb_table[] = {
61 /* Generic Bluetooth USB device */
62 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
64 /* Apple-specific (Broadcom) devices */
65 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
67 /* MediaTek MT76x0E */
68 { USB_DEVICE(0x0e8d, 0x763f) },
70 /* Broadcom SoftSailing reporting vendor specific */
71 { USB_DEVICE(0x0a5c, 0x21e1) },
73 /* Apple MacBookPro 7,1 */
74 { USB_DEVICE(0x05ac, 0x8213) },
77 { USB_DEVICE(0x05ac, 0x8215) },
79 /* Apple MacBookPro6,2 */
80 { USB_DEVICE(0x05ac, 0x8218) },
82 /* Apple MacBookAir3,1, MacBookAir3,2 */
83 { USB_DEVICE(0x05ac, 0x821b) },
85 /* Apple MacBookAir4,1 */
86 { USB_DEVICE(0x05ac, 0x821f) },
88 /* Apple MacBookPro8,2 */
89 { USB_DEVICE(0x05ac, 0x821a) },
91 /* Apple MacMini5,1 */
92 { USB_DEVICE(0x05ac, 0x8281) },
94 /* AVM BlueFRITZ! USB v2.0 */
95 { USB_DEVICE(0x057c, 0x3800) },
97 /* Bluetooth Ultraport Module from IBM */
98 { USB_DEVICE(0x04bf, 0x030a) },
100 /* ALPS Modules with non-standard id */
101 { USB_DEVICE(0x044e, 0x3001) },
102 { USB_DEVICE(0x044e, 0x3002) },
104 /* Ericsson with non-standard id */
105 { USB_DEVICE(0x0bdb, 0x1002) },
107 /* Canyon CN-BTU1 with HID interfaces */
108 { USB_DEVICE(0x0c10, 0x0000) },
110 /* Broadcom BCM20702A0 */
111 { USB_DEVICE(0x0489, 0xe042) },
112 { USB_DEVICE(0x04ca, 0x2003) },
113 { USB_DEVICE(0x0b05, 0x17b5) },
114 { USB_DEVICE(0x0b05, 0x17cb) },
115 { USB_DEVICE(0x413c, 0x8197) },
117 /* Foxconn - Hon Hai */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
120 /* Broadcom devices with vendor specific id */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
123 /* ASUSTek Computer - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
126 /* Belkin F8065bf - Broadcom based */
127 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
129 /* IMC Networks - Broadcom based */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
132 /* Intel Bluetooth USB Bootloader (RAM module) */
133 { USB_DEVICE(0x8087, 0x0a5a),
134 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
136 { } /* Terminating entry */
139 MODULE_DEVICE_TABLE(usb, btusb_table);
141 static struct usb_device_id blacklist_table[] = {
142 /* CSR BlueCore devices */
143 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
145 /* Broadcom BCM2033 without firmware */
146 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
148 /* Atheros 3011 with sflash firmware */
149 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
150 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
151 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
152 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
153 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
154 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
156 /* Atheros AR9285 Malbec with sflash firmware */
157 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
159 /* Atheros 3012 with sflash firmware */
160 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
194 /* Atheros AR5BBU12 with sflash firmware */
195 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
197 /* Atheros AR5BBU12 with sflash firmware */
198 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
201 /* Broadcom BCM2035 */
202 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
203 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
204 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
206 /* Broadcom BCM2045 */
207 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
208 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
210 /* IBM/Lenovo ThinkPad with Broadcom chip */
211 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
212 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
214 /* HP laptop with Broadcom chip */
215 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
217 /* Dell laptop with Broadcom chip */
218 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
220 /* Dell Wireless 370 and 410 devices */
221 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
222 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
224 /* Belkin F8T012 and F8T013 devices */
225 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
226 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
228 /* Asus WL-BTD202 device */
229 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
231 /* Kensington Bluetooth USB adapter */
232 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
234 /* RTX Telecom based adapters with buggy SCO support */
235 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
236 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
238 /* CONWISE Technology based adapters with buggy SCO support */
239 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
241 /* Digianswer devices */
242 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
243 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
245 /* CSR BlueCore Bluetooth Sniffer */
246 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
248 /* Frontline ComProbe Bluetooth Sniffer */
249 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
251 { } /* Terminating entry */
254 #define BTUSB_MAX_ISOC_FRAMES 10
256 #define BTUSB_INTR_RUNNING 0
257 #define BTUSB_BULK_RUNNING 1
258 #define BTUSB_ISOC_RUNNING 2
259 #define BTUSB_SUSPENDING 3
260 #define BTUSB_DID_ISO_RESUME 4
263 struct hci_dev *hdev;
264 struct usb_device *udev;
265 struct usb_interface *intf;
266 struct usb_interface *isoc;
272 struct work_struct work;
273 struct work_struct waker;
275 struct usb_anchor tx_anchor;
276 struct usb_anchor intr_anchor;
277 struct usb_anchor bulk_anchor;
278 struct usb_anchor isoc_anchor;
279 struct usb_anchor deferred;
283 struct usb_endpoint_descriptor *intr_ep;
284 struct usb_endpoint_descriptor *bulk_tx_ep;
285 struct usb_endpoint_descriptor *bulk_rx_ep;
286 struct usb_endpoint_descriptor *isoc_tx_ep;
287 struct usb_endpoint_descriptor *isoc_rx_ep;
291 unsigned int sco_num;
296 static int inc_tx(struct btusb_data *data)
301 spin_lock_irqsave(&data->txlock, flags);
302 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
304 data->tx_in_flight++;
305 spin_unlock_irqrestore(&data->txlock, flags);
310 static void btusb_intr_complete(struct urb *urb)
312 struct hci_dev *hdev = urb->context;
313 struct btusb_data *data = hdev->driver_data;
316 BT_DBG("%s urb %p status %d count %d", hdev->name,
317 urb, urb->status, urb->actual_length);
319 if (!test_bit(HCI_RUNNING, &hdev->flags))
322 if (urb->status == 0) {
323 hdev->stat.byte_rx += urb->actual_length;
325 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
326 urb->transfer_buffer,
327 urb->actual_length) < 0) {
328 BT_ERR("%s corrupted event packet", hdev->name);
331 } else if (urb->status == -ENOENT) {
332 /* Avoid suspend failed when usb_kill_urb */
336 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
339 usb_mark_last_busy(data->udev);
340 usb_anchor_urb(urb, &data->intr_anchor);
342 err = usb_submit_urb(urb, GFP_ATOMIC);
344 /* -EPERM: urb is being killed;
345 * -ENODEV: device got disconnected */
346 if (err != -EPERM && err != -ENODEV)
347 BT_ERR("%s urb %p failed to resubmit (%d)",
348 hdev->name, urb, -err);
349 usb_unanchor_urb(urb);
353 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
355 struct btusb_data *data = hdev->driver_data;
361 BT_DBG("%s", hdev->name);
366 urb = usb_alloc_urb(0, mem_flags);
370 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
372 buf = kmalloc(size, mem_flags);
378 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
380 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
381 btusb_intr_complete, hdev,
382 data->intr_ep->bInterval);
384 urb->transfer_flags |= URB_FREE_BUFFER;
386 usb_anchor_urb(urb, &data->intr_anchor);
388 err = usb_submit_urb(urb, mem_flags);
390 BT_ERR("%s urb %p submission failed (%d)",
391 hdev->name, urb, -err);
392 usb_unanchor_urb(urb);
400 static void btusb_bulk_complete(struct urb *urb)
402 struct hci_dev *hdev = urb->context;
403 struct btusb_data *data = hdev->driver_data;
406 BT_DBG("%s urb %p status %d count %d", hdev->name,
407 urb, urb->status, urb->actual_length);
409 if (!test_bit(HCI_RUNNING, &hdev->flags))
412 if (urb->status == 0) {
413 hdev->stat.byte_rx += urb->actual_length;
415 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
416 urb->transfer_buffer,
417 urb->actual_length) < 0) {
418 BT_ERR("%s corrupted ACL packet", hdev->name);
421 } else if (urb->status == -ENOENT) {
422 /* Avoid suspend failed when usb_kill_urb */
426 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
429 usb_anchor_urb(urb, &data->bulk_anchor);
430 usb_mark_last_busy(data->udev);
432 err = usb_submit_urb(urb, GFP_ATOMIC);
434 /* -EPERM: urb is being killed;
435 * -ENODEV: device got disconnected */
436 if (err != -EPERM && err != -ENODEV)
437 BT_ERR("%s urb %p failed to resubmit (%d)",
438 hdev->name, urb, -err);
439 usb_unanchor_urb(urb);
443 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
445 struct btusb_data *data = hdev->driver_data;
449 int err, size = HCI_MAX_FRAME_SIZE;
451 BT_DBG("%s", hdev->name);
453 if (!data->bulk_rx_ep)
456 urb = usb_alloc_urb(0, mem_flags);
460 buf = kmalloc(size, mem_flags);
466 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
468 usb_fill_bulk_urb(urb, data->udev, pipe,
469 buf, size, btusb_bulk_complete, hdev);
471 urb->transfer_flags |= URB_FREE_BUFFER;
473 usb_mark_last_busy(data->udev);
474 usb_anchor_urb(urb, &data->bulk_anchor);
476 err = usb_submit_urb(urb, mem_flags);
478 BT_ERR("%s urb %p submission failed (%d)",
479 hdev->name, urb, -err);
480 usb_unanchor_urb(urb);
488 static void btusb_isoc_complete(struct urb *urb)
490 struct hci_dev *hdev = urb->context;
491 struct btusb_data *data = hdev->driver_data;
494 BT_DBG("%s urb %p status %d count %d", hdev->name,
495 urb, urb->status, urb->actual_length);
497 if (!test_bit(HCI_RUNNING, &hdev->flags))
500 if (urb->status == 0) {
501 for (i = 0; i < urb->number_of_packets; i++) {
502 unsigned int offset = urb->iso_frame_desc[i].offset;
503 unsigned int length = urb->iso_frame_desc[i].actual_length;
505 if (urb->iso_frame_desc[i].status)
508 hdev->stat.byte_rx += length;
510 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
511 urb->transfer_buffer + offset,
513 BT_ERR("%s corrupted SCO packet", hdev->name);
517 } else if (urb->status == -ENOENT) {
518 /* Avoid suspend failed when usb_kill_urb */
522 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
525 usb_anchor_urb(urb, &data->isoc_anchor);
527 err = usb_submit_urb(urb, GFP_ATOMIC);
529 /* -EPERM: urb is being killed;
530 * -ENODEV: device got disconnected */
531 if (err != -EPERM && err != -ENODEV)
532 BT_ERR("%s urb %p failed to resubmit (%d)",
533 hdev->name, urb, -err);
534 usb_unanchor_urb(urb);
538 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
542 BT_DBG("len %d mtu %d", len, mtu);
544 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
545 i++, offset += mtu, len -= mtu) {
546 urb->iso_frame_desc[i].offset = offset;
547 urb->iso_frame_desc[i].length = mtu;
550 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
551 urb->iso_frame_desc[i].offset = offset;
552 urb->iso_frame_desc[i].length = len;
556 urb->number_of_packets = i;
559 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
561 struct btusb_data *data = hdev->driver_data;
567 BT_DBG("%s", hdev->name);
569 if (!data->isoc_rx_ep)
572 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
576 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
577 BTUSB_MAX_ISOC_FRAMES;
579 buf = kmalloc(size, mem_flags);
585 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
587 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
588 hdev, data->isoc_rx_ep->bInterval);
590 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
592 __fill_isoc_descriptor(urb, size,
593 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
595 usb_anchor_urb(urb, &data->isoc_anchor);
597 err = usb_submit_urb(urb, mem_flags);
599 BT_ERR("%s urb %p submission failed (%d)",
600 hdev->name, urb, -err);
601 usb_unanchor_urb(urb);
609 static void btusb_tx_complete(struct urb *urb)
611 struct sk_buff *skb = urb->context;
612 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
613 struct btusb_data *data = hdev->driver_data;
615 BT_DBG("%s urb %p status %d count %d", hdev->name,
616 urb, urb->status, urb->actual_length);
618 if (!test_bit(HCI_RUNNING, &hdev->flags))
622 hdev->stat.byte_tx += urb->transfer_buffer_length;
627 spin_lock(&data->txlock);
628 data->tx_in_flight--;
629 spin_unlock(&data->txlock);
631 kfree(urb->setup_packet);
636 static void btusb_isoc_tx_complete(struct urb *urb)
638 struct sk_buff *skb = urb->context;
639 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
641 BT_DBG("%s urb %p status %d count %d", hdev->name,
642 urb, urb->status, urb->actual_length);
644 if (!test_bit(HCI_RUNNING, &hdev->flags))
648 hdev->stat.byte_tx += urb->transfer_buffer_length;
653 kfree(urb->setup_packet);
658 static int btusb_open(struct hci_dev *hdev)
660 struct btusb_data *data = hdev->driver_data;
663 BT_DBG("%s", hdev->name);
665 err = usb_autopm_get_interface(data->intf);
669 data->intf->needs_remote_wakeup = 1;
671 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
674 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
677 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
681 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
683 usb_kill_anchored_urbs(&data->intr_anchor);
687 set_bit(BTUSB_BULK_RUNNING, &data->flags);
688 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
691 usb_autopm_put_interface(data->intf);
695 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
696 clear_bit(HCI_RUNNING, &hdev->flags);
697 usb_autopm_put_interface(data->intf);
701 static void btusb_stop_traffic(struct btusb_data *data)
703 usb_kill_anchored_urbs(&data->intr_anchor);
704 usb_kill_anchored_urbs(&data->bulk_anchor);
705 usb_kill_anchored_urbs(&data->isoc_anchor);
708 static int btusb_close(struct hci_dev *hdev)
710 struct btusb_data *data = hdev->driver_data;
713 BT_DBG("%s", hdev->name);
715 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
718 cancel_work_sync(&data->work);
719 cancel_work_sync(&data->waker);
721 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
722 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
723 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
725 btusb_stop_traffic(data);
726 err = usb_autopm_get_interface(data->intf);
730 data->intf->needs_remote_wakeup = 0;
731 usb_autopm_put_interface(data->intf);
734 usb_scuttle_anchored_urbs(&data->deferred);
738 static int btusb_flush(struct hci_dev *hdev)
740 struct btusb_data *data = hdev->driver_data;
742 BT_DBG("%s", hdev->name);
744 usb_kill_anchored_urbs(&data->tx_anchor);
749 static int btusb_send_frame(struct sk_buff *skb)
751 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
752 struct btusb_data *data = hdev->driver_data;
753 struct usb_ctrlrequest *dr;
758 BT_DBG("%s", hdev->name);
760 if (!test_bit(HCI_RUNNING, &hdev->flags))
763 switch (bt_cb(skb)->pkt_type) {
764 case HCI_COMMAND_PKT:
765 urb = usb_alloc_urb(0, GFP_ATOMIC);
769 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
775 dr->bRequestType = data->cmdreq_type;
779 dr->wLength = __cpu_to_le16(skb->len);
781 pipe = usb_sndctrlpipe(data->udev, 0x00);
783 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
784 skb->data, skb->len, btusb_tx_complete, skb);
789 case HCI_ACLDATA_PKT:
790 if (!data->bulk_tx_ep)
793 urb = usb_alloc_urb(0, GFP_ATOMIC);
797 pipe = usb_sndbulkpipe(data->udev,
798 data->bulk_tx_ep->bEndpointAddress);
800 usb_fill_bulk_urb(urb, data->udev, pipe,
801 skb->data, skb->len, btusb_tx_complete, skb);
806 case HCI_SCODATA_PKT:
807 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
810 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
814 pipe = usb_sndisocpipe(data->udev,
815 data->isoc_tx_ep->bEndpointAddress);
817 usb_fill_int_urb(urb, data->udev, pipe,
818 skb->data, skb->len, btusb_isoc_tx_complete,
819 skb, data->isoc_tx_ep->bInterval);
821 urb->transfer_flags = URB_ISO_ASAP;
823 __fill_isoc_descriptor(urb, skb->len,
824 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
835 usb_anchor_urb(urb, &data->deferred);
836 schedule_work(&data->waker);
842 usb_anchor_urb(urb, &data->tx_anchor);
844 err = usb_submit_urb(urb, GFP_ATOMIC);
846 BT_ERR("%s urb %p submission failed", hdev->name, urb);
847 kfree(urb->setup_packet);
848 usb_unanchor_urb(urb);
850 usb_mark_last_busy(data->udev);
858 static void btusb_destruct(struct hci_dev *hdev)
860 struct btusb_data *data = hdev->driver_data;
862 BT_DBG("%s", hdev->name);
867 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
869 struct btusb_data *data = hdev->driver_data;
871 BT_DBG("%s evt %d", hdev->name, evt);
873 if (hdev->conn_hash.sco_num != data->sco_num) {
874 data->sco_num = hdev->conn_hash.sco_num;
875 schedule_work(&data->work);
879 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
881 struct btusb_data *data = hdev->driver_data;
882 struct usb_interface *intf = data->isoc;
883 struct usb_endpoint_descriptor *ep_desc;
889 err = usb_set_interface(data->udev, 1, altsetting);
891 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
895 data->isoc_altsetting = altsetting;
897 data->isoc_tx_ep = NULL;
898 data->isoc_rx_ep = NULL;
900 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
901 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
903 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
904 data->isoc_tx_ep = ep_desc;
908 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
909 data->isoc_rx_ep = ep_desc;
914 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
915 BT_ERR("%s invalid SCO descriptors", hdev->name);
922 static void btusb_work(struct work_struct *work)
924 struct btusb_data *data = container_of(work, struct btusb_data, work);
925 struct hci_dev *hdev = data->hdev;
928 if (hdev->conn_hash.sco_num > 0) {
929 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
930 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
932 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
933 usb_kill_anchored_urbs(&data->isoc_anchor);
937 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
939 if (data->isoc_altsetting != 2) {
940 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
941 usb_kill_anchored_urbs(&data->isoc_anchor);
943 if (__set_isoc_interface(hdev, 2) < 0)
947 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
948 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
949 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
951 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
954 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
955 usb_kill_anchored_urbs(&data->isoc_anchor);
957 __set_isoc_interface(hdev, 0);
958 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
959 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
963 static void btusb_waker(struct work_struct *work)
965 struct btusb_data *data = container_of(work, struct btusb_data, waker);
968 err = usb_autopm_get_interface(data->intf);
972 usb_autopm_put_interface(data->intf);
975 static int btusb_probe(struct usb_interface *intf,
976 const struct usb_device_id *id)
978 struct usb_endpoint_descriptor *ep_desc;
979 struct btusb_data *data;
980 struct hci_dev *hdev;
983 BT_DBG("intf %p id %p", intf, id);
985 /* interface numbers are hardcoded in the spec */
986 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
989 if (!id->driver_info) {
990 const struct usb_device_id *match;
991 match = usb_match_id(intf, blacklist_table);
996 if (id->driver_info == BTUSB_IGNORE)
999 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1002 if (ignore_csr && id->driver_info & BTUSB_CSR)
1005 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1008 if (id->driver_info & BTUSB_ATH3012) {
1009 struct usb_device *udev = interface_to_usbdev(intf);
1011 /* Old firmware would otherwise let ath3k driver load
1012 * patch and sysconfig files */
1013 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1017 data = kzalloc(sizeof(*data), GFP_KERNEL);
1021 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1022 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1024 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1025 data->intr_ep = ep_desc;
1029 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1030 data->bulk_tx_ep = ep_desc;
1034 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1035 data->bulk_rx_ep = ep_desc;
1040 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1045 data->cmdreq_type = USB_TYPE_CLASS;
1047 data->udev = interface_to_usbdev(intf);
1050 spin_lock_init(&data->lock);
1052 INIT_WORK(&data->work, btusb_work);
1053 INIT_WORK(&data->waker, btusb_waker);
1054 spin_lock_init(&data->txlock);
1056 init_usb_anchor(&data->tx_anchor);
1057 init_usb_anchor(&data->intr_anchor);
1058 init_usb_anchor(&data->bulk_anchor);
1059 init_usb_anchor(&data->isoc_anchor);
1060 init_usb_anchor(&data->deferred);
1062 hdev = hci_alloc_dev();
1068 hdev->bus = HCI_USB;
1069 hdev->driver_data = data;
1073 SET_HCIDEV_DEV(hdev, &intf->dev);
1075 hdev->open = btusb_open;
1076 hdev->close = btusb_close;
1077 hdev->flush = btusb_flush;
1078 hdev->send = btusb_send_frame;
1079 hdev->destruct = btusb_destruct;
1080 hdev->notify = btusb_notify;
1082 hdev->owner = THIS_MODULE;
1084 if (id->driver_info & BTUSB_INTEL_BOOT)
1085 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1087 /* Interface numbers are hardcoded in the specification */
1088 data->isoc = usb_ifnum_to_if(data->udev, 1);
1091 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1093 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1094 if (!disable_scofix)
1095 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1098 if (id->driver_info & BTUSB_BROKEN_ISOC)
1101 if (id->driver_info & BTUSB_DIGIANSWER) {
1102 data->cmdreq_type = USB_TYPE_VENDOR;
1103 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1106 if (id->driver_info & BTUSB_CSR) {
1107 struct usb_device *udev = data->udev;
1109 /* Old firmware would otherwise execute USB reset */
1110 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1111 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1114 if (id->driver_info & BTUSB_SNIFFER) {
1115 struct usb_device *udev = data->udev;
1117 /* New sniffer firmware has crippled HCI interface */
1118 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1119 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1124 if (id->driver_info & BTUSB_BCM92035) {
1125 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1126 struct sk_buff *skb;
1128 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1130 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1131 skb_queue_tail(&hdev->driver_init, skb);
1136 err = usb_driver_claim_interface(&btusb_driver,
1145 err = hci_register_dev(hdev);
1152 usb_set_intfdata(intf, data);
1157 static void btusb_disconnect(struct usb_interface *intf)
1159 struct btusb_data *data = usb_get_intfdata(intf);
1160 struct hci_dev *hdev;
1162 BT_DBG("intf %p", intf);
1169 __hci_dev_hold(hdev);
1171 usb_set_intfdata(data->intf, NULL);
1174 usb_set_intfdata(data->isoc, NULL);
1176 hci_unregister_dev(hdev);
1178 if (intf == data->isoc)
1179 usb_driver_release_interface(&btusb_driver, data->intf);
1180 else if (data->isoc)
1181 usb_driver_release_interface(&btusb_driver, data->isoc);
1183 __hci_dev_put(hdev);
1189 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1191 struct btusb_data *data = usb_get_intfdata(intf);
1193 BT_DBG("intf %p", intf);
1195 if (data->suspend_count++)
1198 spin_lock_irq(&data->txlock);
1199 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1200 set_bit(BTUSB_SUSPENDING, &data->flags);
1201 spin_unlock_irq(&data->txlock);
1203 spin_unlock_irq(&data->txlock);
1204 data->suspend_count--;
1208 cancel_work_sync(&data->work);
1210 btusb_stop_traffic(data);
1211 usb_kill_anchored_urbs(&data->tx_anchor);
1216 static void play_deferred(struct btusb_data *data)
1221 while ((urb = usb_get_from_anchor(&data->deferred))) {
1222 err = usb_submit_urb(urb, GFP_ATOMIC);
1226 data->tx_in_flight++;
1228 usb_scuttle_anchored_urbs(&data->deferred);
1231 static int btusb_resume(struct usb_interface *intf)
1233 struct btusb_data *data = usb_get_intfdata(intf);
1234 struct hci_dev *hdev = data->hdev;
1237 BT_DBG("intf %p", intf);
1239 if (--data->suspend_count)
1242 if (!test_bit(HCI_RUNNING, &hdev->flags))
1245 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1246 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1248 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1253 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1254 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1256 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1260 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1263 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1264 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1265 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1267 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1270 spin_lock_irq(&data->txlock);
1271 play_deferred(data);
1272 clear_bit(BTUSB_SUSPENDING, &data->flags);
1273 spin_unlock_irq(&data->txlock);
1274 schedule_work(&data->work);
1279 usb_scuttle_anchored_urbs(&data->deferred);
1281 spin_lock_irq(&data->txlock);
1282 clear_bit(BTUSB_SUSPENDING, &data->flags);
1283 spin_unlock_irq(&data->txlock);
1289 static struct usb_driver btusb_driver = {
1291 .probe = btusb_probe,
1292 .disconnect = btusb_disconnect,
1294 .suspend = btusb_suspend,
1295 .resume = btusb_resume,
1297 .id_table = btusb_table,
1298 .supports_autosuspend = 1,
1301 static int __init btusb_init(void)
1303 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1305 return usb_register(&btusb_driver);
1308 static void __exit btusb_exit(void)
1310 usb_deregister(&btusb_driver);
1313 module_init(btusb_init);
1314 module_exit(btusb_exit);
1316 module_param(ignore_dga, bool, 0644);
1317 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1319 module_param(ignore_csr, bool, 0644);
1320 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1322 module_param(ignore_sniffer, bool, 0644);
1323 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1325 module_param(disable_scofix, bool, 0644);
1326 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1328 module_param(force_scofix, bool, 0644);
1329 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1331 module_param(reset, bool, 0644);
1332 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1334 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1335 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1336 MODULE_VERSION(VERSION);
1337 MODULE_LICENSE("GPL");