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 /* Belkin F8065bf - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
126 /* IMC Networks - Broadcom based */
127 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
129 /* Intel Bluetooth USB Bootloader (RAM module) */
130 { USB_DEVICE(0x8087, 0x0a5a),
131 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
133 { } /* Terminating entry */
136 MODULE_DEVICE_TABLE(usb, btusb_table);
138 static struct usb_device_id blacklist_table[] = {
139 /* CSR BlueCore devices */
140 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
142 /* Broadcom BCM2033 without firmware */
143 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
145 /* Atheros 3011 with sflash firmware */
146 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
147 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
148 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
149 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
150 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
151 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
153 /* Atheros AR9285 Malbec with sflash firmware */
154 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
156 /* Atheros 3012 with sflash firmware */
157 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
189 /* Atheros AR5BBU12 with sflash firmware */
190 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
192 /* Atheros AR5BBU12 with sflash firmware */
193 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
196 /* Broadcom BCM2035 */
197 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
198 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
199 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
201 /* Broadcom BCM2045 */
202 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
203 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* IBM/Lenovo ThinkPad with Broadcom chip */
206 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
207 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
209 /* HP laptop with Broadcom chip */
210 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
212 /* Dell laptop with Broadcom chip */
213 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
215 /* Dell Wireless 370 and 410 devices */
216 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
217 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
219 /* Belkin F8T012 and F8T013 devices */
220 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
221 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
223 /* Asus WL-BTD202 device */
224 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
226 /* Kensington Bluetooth USB adapter */
227 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
229 /* RTX Telecom based adapters with buggy SCO support */
230 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
231 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
233 /* CONWISE Technology based adapters with buggy SCO support */
234 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
236 /* Digianswer devices */
237 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
238 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
240 /* CSR BlueCore Bluetooth Sniffer */
241 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
243 /* Frontline ComProbe Bluetooth Sniffer */
244 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
246 { } /* Terminating entry */
249 #define BTUSB_MAX_ISOC_FRAMES 10
251 #define BTUSB_INTR_RUNNING 0
252 #define BTUSB_BULK_RUNNING 1
253 #define BTUSB_ISOC_RUNNING 2
254 #define BTUSB_SUSPENDING 3
255 #define BTUSB_DID_ISO_RESUME 4
258 struct hci_dev *hdev;
259 struct usb_device *udev;
260 struct usb_interface *intf;
261 struct usb_interface *isoc;
267 struct work_struct work;
268 struct work_struct waker;
270 struct usb_anchor tx_anchor;
271 struct usb_anchor intr_anchor;
272 struct usb_anchor bulk_anchor;
273 struct usb_anchor isoc_anchor;
274 struct usb_anchor deferred;
278 struct usb_endpoint_descriptor *intr_ep;
279 struct usb_endpoint_descriptor *bulk_tx_ep;
280 struct usb_endpoint_descriptor *bulk_rx_ep;
281 struct usb_endpoint_descriptor *isoc_tx_ep;
282 struct usb_endpoint_descriptor *isoc_rx_ep;
286 unsigned int sco_num;
291 static int inc_tx(struct btusb_data *data)
296 spin_lock_irqsave(&data->txlock, flags);
297 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
299 data->tx_in_flight++;
300 spin_unlock_irqrestore(&data->txlock, flags);
305 static void btusb_intr_complete(struct urb *urb)
307 struct hci_dev *hdev = urb->context;
308 struct btusb_data *data = hdev->driver_data;
311 BT_DBG("%s urb %p status %d count %d", hdev->name,
312 urb, urb->status, urb->actual_length);
314 if (!test_bit(HCI_RUNNING, &hdev->flags))
317 if (urb->status == 0) {
318 hdev->stat.byte_rx += urb->actual_length;
320 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
321 urb->transfer_buffer,
322 urb->actual_length) < 0) {
323 BT_ERR("%s corrupted event packet", hdev->name);
326 } else if (urb->status == -ENOENT) {
327 /* Avoid suspend failed when usb_kill_urb */
331 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
334 usb_mark_last_busy(data->udev);
335 usb_anchor_urb(urb, &data->intr_anchor);
337 err = usb_submit_urb(urb, GFP_ATOMIC);
339 /* -EPERM: urb is being killed;
340 * -ENODEV: device got disconnected */
341 if (err != -EPERM && err != -ENODEV)
342 BT_ERR("%s urb %p failed to resubmit (%d)",
343 hdev->name, urb, -err);
344 usb_unanchor_urb(urb);
348 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
350 struct btusb_data *data = hdev->driver_data;
356 BT_DBG("%s", hdev->name);
361 urb = usb_alloc_urb(0, mem_flags);
365 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
367 buf = kmalloc(size, mem_flags);
373 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
375 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
376 btusb_intr_complete, hdev,
377 data->intr_ep->bInterval);
379 urb->transfer_flags |= URB_FREE_BUFFER;
381 usb_anchor_urb(urb, &data->intr_anchor);
383 err = usb_submit_urb(urb, mem_flags);
385 BT_ERR("%s urb %p submission failed (%d)",
386 hdev->name, urb, -err);
387 usb_unanchor_urb(urb);
395 static void btusb_bulk_complete(struct urb *urb)
397 struct hci_dev *hdev = urb->context;
398 struct btusb_data *data = hdev->driver_data;
401 BT_DBG("%s urb %p status %d count %d", hdev->name,
402 urb, urb->status, urb->actual_length);
404 if (!test_bit(HCI_RUNNING, &hdev->flags))
407 if (urb->status == 0) {
408 hdev->stat.byte_rx += urb->actual_length;
410 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
411 urb->transfer_buffer,
412 urb->actual_length) < 0) {
413 BT_ERR("%s corrupted ACL packet", hdev->name);
416 } else if (urb->status == -ENOENT) {
417 /* Avoid suspend failed when usb_kill_urb */
421 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
424 usb_anchor_urb(urb, &data->bulk_anchor);
425 usb_mark_last_busy(data->udev);
427 err = usb_submit_urb(urb, GFP_ATOMIC);
429 /* -EPERM: urb is being killed;
430 * -ENODEV: device got disconnected */
431 if (err != -EPERM && err != -ENODEV)
432 BT_ERR("%s urb %p failed to resubmit (%d)",
433 hdev->name, urb, -err);
434 usb_unanchor_urb(urb);
438 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
440 struct btusb_data *data = hdev->driver_data;
444 int err, size = HCI_MAX_FRAME_SIZE;
446 BT_DBG("%s", hdev->name);
448 if (!data->bulk_rx_ep)
451 urb = usb_alloc_urb(0, mem_flags);
455 buf = kmalloc(size, mem_flags);
461 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
463 usb_fill_bulk_urb(urb, data->udev, pipe,
464 buf, size, btusb_bulk_complete, hdev);
466 urb->transfer_flags |= URB_FREE_BUFFER;
468 usb_mark_last_busy(data->udev);
469 usb_anchor_urb(urb, &data->bulk_anchor);
471 err = usb_submit_urb(urb, mem_flags);
473 BT_ERR("%s urb %p submission failed (%d)",
474 hdev->name, urb, -err);
475 usb_unanchor_urb(urb);
483 static void btusb_isoc_complete(struct urb *urb)
485 struct hci_dev *hdev = urb->context;
486 struct btusb_data *data = hdev->driver_data;
489 BT_DBG("%s urb %p status %d count %d", hdev->name,
490 urb, urb->status, urb->actual_length);
492 if (!test_bit(HCI_RUNNING, &hdev->flags))
495 if (urb->status == 0) {
496 for (i = 0; i < urb->number_of_packets; i++) {
497 unsigned int offset = urb->iso_frame_desc[i].offset;
498 unsigned int length = urb->iso_frame_desc[i].actual_length;
500 if (urb->iso_frame_desc[i].status)
503 hdev->stat.byte_rx += length;
505 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
506 urb->transfer_buffer + offset,
508 BT_ERR("%s corrupted SCO packet", hdev->name);
512 } else if (urb->status == -ENOENT) {
513 /* Avoid suspend failed when usb_kill_urb */
517 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
520 usb_anchor_urb(urb, &data->isoc_anchor);
522 err = usb_submit_urb(urb, GFP_ATOMIC);
524 /* -EPERM: urb is being killed;
525 * -ENODEV: device got disconnected */
526 if (err != -EPERM && err != -ENODEV)
527 BT_ERR("%s urb %p failed to resubmit (%d)",
528 hdev->name, urb, -err);
529 usb_unanchor_urb(urb);
533 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
537 BT_DBG("len %d mtu %d", len, mtu);
539 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
540 i++, offset += mtu, len -= mtu) {
541 urb->iso_frame_desc[i].offset = offset;
542 urb->iso_frame_desc[i].length = mtu;
545 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
546 urb->iso_frame_desc[i].offset = offset;
547 urb->iso_frame_desc[i].length = len;
551 urb->number_of_packets = i;
554 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
556 struct btusb_data *data = hdev->driver_data;
562 BT_DBG("%s", hdev->name);
564 if (!data->isoc_rx_ep)
567 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
571 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
572 BTUSB_MAX_ISOC_FRAMES;
574 buf = kmalloc(size, mem_flags);
580 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
582 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
583 hdev, data->isoc_rx_ep->bInterval);
585 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
587 __fill_isoc_descriptor(urb, size,
588 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
590 usb_anchor_urb(urb, &data->isoc_anchor);
592 err = usb_submit_urb(urb, mem_flags);
594 BT_ERR("%s urb %p submission failed (%d)",
595 hdev->name, urb, -err);
596 usb_unanchor_urb(urb);
604 static void btusb_tx_complete(struct urb *urb)
606 struct sk_buff *skb = urb->context;
607 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
608 struct btusb_data *data = hdev->driver_data;
610 BT_DBG("%s urb %p status %d count %d", hdev->name,
611 urb, urb->status, urb->actual_length);
613 if (!test_bit(HCI_RUNNING, &hdev->flags))
617 hdev->stat.byte_tx += urb->transfer_buffer_length;
622 spin_lock(&data->txlock);
623 data->tx_in_flight--;
624 spin_unlock(&data->txlock);
626 kfree(urb->setup_packet);
631 static void btusb_isoc_tx_complete(struct urb *urb)
633 struct sk_buff *skb = urb->context;
634 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
636 BT_DBG("%s urb %p status %d count %d", hdev->name,
637 urb, urb->status, urb->actual_length);
639 if (!test_bit(HCI_RUNNING, &hdev->flags))
643 hdev->stat.byte_tx += urb->transfer_buffer_length;
648 kfree(urb->setup_packet);
653 static int btusb_open(struct hci_dev *hdev)
655 struct btusb_data *data = hdev->driver_data;
658 BT_DBG("%s", hdev->name);
660 err = usb_autopm_get_interface(data->intf);
664 data->intf->needs_remote_wakeup = 1;
666 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
669 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
672 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
676 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
678 usb_kill_anchored_urbs(&data->intr_anchor);
682 set_bit(BTUSB_BULK_RUNNING, &data->flags);
683 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
686 usb_autopm_put_interface(data->intf);
690 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
691 clear_bit(HCI_RUNNING, &hdev->flags);
692 usb_autopm_put_interface(data->intf);
696 static void btusb_stop_traffic(struct btusb_data *data)
698 usb_kill_anchored_urbs(&data->intr_anchor);
699 usb_kill_anchored_urbs(&data->bulk_anchor);
700 usb_kill_anchored_urbs(&data->isoc_anchor);
703 static int btusb_close(struct hci_dev *hdev)
705 struct btusb_data *data = hdev->driver_data;
708 BT_DBG("%s", hdev->name);
710 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
713 cancel_work_sync(&data->work);
714 cancel_work_sync(&data->waker);
716 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
717 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
718 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
720 btusb_stop_traffic(data);
721 err = usb_autopm_get_interface(data->intf);
725 data->intf->needs_remote_wakeup = 0;
726 usb_autopm_put_interface(data->intf);
729 usb_scuttle_anchored_urbs(&data->deferred);
733 static int btusb_flush(struct hci_dev *hdev)
735 struct btusb_data *data = hdev->driver_data;
737 BT_DBG("%s", hdev->name);
739 usb_kill_anchored_urbs(&data->tx_anchor);
744 static int btusb_send_frame(struct sk_buff *skb)
746 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
747 struct btusb_data *data = hdev->driver_data;
748 struct usb_ctrlrequest *dr;
753 BT_DBG("%s", hdev->name);
755 if (!test_bit(HCI_RUNNING, &hdev->flags))
758 switch (bt_cb(skb)->pkt_type) {
759 case HCI_COMMAND_PKT:
760 urb = usb_alloc_urb(0, GFP_ATOMIC);
764 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
770 dr->bRequestType = data->cmdreq_type;
774 dr->wLength = __cpu_to_le16(skb->len);
776 pipe = usb_sndctrlpipe(data->udev, 0x00);
778 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
779 skb->data, skb->len, btusb_tx_complete, skb);
784 case HCI_ACLDATA_PKT:
785 if (!data->bulk_tx_ep)
788 urb = usb_alloc_urb(0, GFP_ATOMIC);
792 pipe = usb_sndbulkpipe(data->udev,
793 data->bulk_tx_ep->bEndpointAddress);
795 usb_fill_bulk_urb(urb, data->udev, pipe,
796 skb->data, skb->len, btusb_tx_complete, skb);
801 case HCI_SCODATA_PKT:
802 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
805 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
809 pipe = usb_sndisocpipe(data->udev,
810 data->isoc_tx_ep->bEndpointAddress);
812 usb_fill_int_urb(urb, data->udev, pipe,
813 skb->data, skb->len, btusb_isoc_tx_complete,
814 skb, data->isoc_tx_ep->bInterval);
816 urb->transfer_flags = URB_ISO_ASAP;
818 __fill_isoc_descriptor(urb, skb->len,
819 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
830 usb_anchor_urb(urb, &data->deferred);
831 schedule_work(&data->waker);
837 usb_anchor_urb(urb, &data->tx_anchor);
839 err = usb_submit_urb(urb, GFP_ATOMIC);
841 BT_ERR("%s urb %p submission failed", hdev->name, urb);
842 kfree(urb->setup_packet);
843 usb_unanchor_urb(urb);
845 usb_mark_last_busy(data->udev);
853 static void btusb_destruct(struct hci_dev *hdev)
855 struct btusb_data *data = hdev->driver_data;
857 BT_DBG("%s", hdev->name);
862 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
864 struct btusb_data *data = hdev->driver_data;
866 BT_DBG("%s evt %d", hdev->name, evt);
868 if (hdev->conn_hash.sco_num != data->sco_num) {
869 data->sco_num = hdev->conn_hash.sco_num;
870 schedule_work(&data->work);
874 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
876 struct btusb_data *data = hdev->driver_data;
877 struct usb_interface *intf = data->isoc;
878 struct usb_endpoint_descriptor *ep_desc;
884 err = usb_set_interface(data->udev, 1, altsetting);
886 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
890 data->isoc_altsetting = altsetting;
892 data->isoc_tx_ep = NULL;
893 data->isoc_rx_ep = NULL;
895 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
896 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
898 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
899 data->isoc_tx_ep = ep_desc;
903 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
904 data->isoc_rx_ep = ep_desc;
909 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
910 BT_ERR("%s invalid SCO descriptors", hdev->name);
917 static void btusb_work(struct work_struct *work)
919 struct btusb_data *data = container_of(work, struct btusb_data, work);
920 struct hci_dev *hdev = data->hdev;
923 if (hdev->conn_hash.sco_num > 0) {
924 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
925 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
927 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
928 usb_kill_anchored_urbs(&data->isoc_anchor);
932 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
934 if (data->isoc_altsetting != 2) {
935 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
936 usb_kill_anchored_urbs(&data->isoc_anchor);
938 if (__set_isoc_interface(hdev, 2) < 0)
942 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
943 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
944 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
946 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
949 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
950 usb_kill_anchored_urbs(&data->isoc_anchor);
952 __set_isoc_interface(hdev, 0);
953 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
954 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
958 static void btusb_waker(struct work_struct *work)
960 struct btusb_data *data = container_of(work, struct btusb_data, waker);
963 err = usb_autopm_get_interface(data->intf);
967 usb_autopm_put_interface(data->intf);
970 static int btusb_probe(struct usb_interface *intf,
971 const struct usb_device_id *id)
973 struct usb_endpoint_descriptor *ep_desc;
974 struct btusb_data *data;
975 struct hci_dev *hdev;
978 BT_DBG("intf %p id %p", intf, id);
980 /* interface numbers are hardcoded in the spec */
981 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
984 if (!id->driver_info) {
985 const struct usb_device_id *match;
986 match = usb_match_id(intf, blacklist_table);
991 if (id->driver_info == BTUSB_IGNORE)
994 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
997 if (ignore_csr && id->driver_info & BTUSB_CSR)
1000 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1003 if (id->driver_info & BTUSB_ATH3012) {
1004 struct usb_device *udev = interface_to_usbdev(intf);
1006 /* Old firmware would otherwise let ath3k driver load
1007 * patch and sysconfig files */
1008 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1012 data = kzalloc(sizeof(*data), GFP_KERNEL);
1016 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1017 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1019 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1020 data->intr_ep = ep_desc;
1024 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1025 data->bulk_tx_ep = ep_desc;
1029 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1030 data->bulk_rx_ep = ep_desc;
1035 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1040 data->cmdreq_type = USB_TYPE_CLASS;
1042 data->udev = interface_to_usbdev(intf);
1045 spin_lock_init(&data->lock);
1047 INIT_WORK(&data->work, btusb_work);
1048 INIT_WORK(&data->waker, btusb_waker);
1049 spin_lock_init(&data->txlock);
1051 init_usb_anchor(&data->tx_anchor);
1052 init_usb_anchor(&data->intr_anchor);
1053 init_usb_anchor(&data->bulk_anchor);
1054 init_usb_anchor(&data->isoc_anchor);
1055 init_usb_anchor(&data->deferred);
1057 hdev = hci_alloc_dev();
1063 hdev->bus = HCI_USB;
1064 hdev->driver_data = data;
1068 SET_HCIDEV_DEV(hdev, &intf->dev);
1070 hdev->open = btusb_open;
1071 hdev->close = btusb_close;
1072 hdev->flush = btusb_flush;
1073 hdev->send = btusb_send_frame;
1074 hdev->destruct = btusb_destruct;
1075 hdev->notify = btusb_notify;
1077 hdev->owner = THIS_MODULE;
1079 if (id->driver_info & BTUSB_INTEL_BOOT)
1080 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1082 /* Interface numbers are hardcoded in the specification */
1083 data->isoc = usb_ifnum_to_if(data->udev, 1);
1086 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1088 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1089 if (!disable_scofix)
1090 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1093 if (id->driver_info & BTUSB_BROKEN_ISOC)
1096 if (id->driver_info & BTUSB_DIGIANSWER) {
1097 data->cmdreq_type = USB_TYPE_VENDOR;
1098 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1101 if (id->driver_info & BTUSB_CSR) {
1102 struct usb_device *udev = data->udev;
1104 /* Old firmware would otherwise execute USB reset */
1105 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1106 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1109 if (id->driver_info & BTUSB_SNIFFER) {
1110 struct usb_device *udev = data->udev;
1112 /* New sniffer firmware has crippled HCI interface */
1113 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1114 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1119 if (id->driver_info & BTUSB_BCM92035) {
1120 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1121 struct sk_buff *skb;
1123 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1125 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1126 skb_queue_tail(&hdev->driver_init, skb);
1131 err = usb_driver_claim_interface(&btusb_driver,
1140 err = hci_register_dev(hdev);
1147 usb_set_intfdata(intf, data);
1152 static void btusb_disconnect(struct usb_interface *intf)
1154 struct btusb_data *data = usb_get_intfdata(intf);
1155 struct hci_dev *hdev;
1157 BT_DBG("intf %p", intf);
1164 __hci_dev_hold(hdev);
1166 usb_set_intfdata(data->intf, NULL);
1169 usb_set_intfdata(data->isoc, NULL);
1171 hci_unregister_dev(hdev);
1173 if (intf == data->isoc)
1174 usb_driver_release_interface(&btusb_driver, data->intf);
1175 else if (data->isoc)
1176 usb_driver_release_interface(&btusb_driver, data->isoc);
1178 __hci_dev_put(hdev);
1184 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1186 struct btusb_data *data = usb_get_intfdata(intf);
1188 BT_DBG("intf %p", intf);
1190 if (data->suspend_count++)
1193 spin_lock_irq(&data->txlock);
1194 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1195 set_bit(BTUSB_SUSPENDING, &data->flags);
1196 spin_unlock_irq(&data->txlock);
1198 spin_unlock_irq(&data->txlock);
1199 data->suspend_count--;
1203 cancel_work_sync(&data->work);
1205 btusb_stop_traffic(data);
1206 usb_kill_anchored_urbs(&data->tx_anchor);
1211 static void play_deferred(struct btusb_data *data)
1216 while ((urb = usb_get_from_anchor(&data->deferred))) {
1217 err = usb_submit_urb(urb, GFP_ATOMIC);
1221 data->tx_in_flight++;
1223 usb_scuttle_anchored_urbs(&data->deferred);
1226 static int btusb_resume(struct usb_interface *intf)
1228 struct btusb_data *data = usb_get_intfdata(intf);
1229 struct hci_dev *hdev = data->hdev;
1232 BT_DBG("intf %p", intf);
1234 if (--data->suspend_count)
1237 if (!test_bit(HCI_RUNNING, &hdev->flags))
1240 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1241 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1243 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1248 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1249 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1251 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1255 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1258 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1259 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1260 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1262 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1265 spin_lock_irq(&data->txlock);
1266 play_deferred(data);
1267 clear_bit(BTUSB_SUSPENDING, &data->flags);
1268 spin_unlock_irq(&data->txlock);
1269 schedule_work(&data->work);
1274 usb_scuttle_anchored_urbs(&data->deferred);
1276 spin_lock_irq(&data->txlock);
1277 clear_bit(BTUSB_SUSPENDING, &data->flags);
1278 spin_unlock_irq(&data->txlock);
1284 static struct usb_driver btusb_driver = {
1286 .probe = btusb_probe,
1287 .disconnect = btusb_disconnect,
1289 .suspend = btusb_suspend,
1290 .resume = btusb_resume,
1292 .id_table = btusb_table,
1293 .supports_autosuspend = 1,
1296 static int __init btusb_init(void)
1298 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1300 return usb_register(&btusb_driver);
1303 static void __exit btusb_exit(void)
1305 usb_deregister(&btusb_driver);
1308 module_init(btusb_init);
1309 module_exit(btusb_exit);
1311 module_param(ignore_dga, bool, 0644);
1312 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1314 module_param(ignore_csr, bool, 0644);
1315 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1317 module_param(ignore_sniffer, bool, 0644);
1318 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1320 module_param(disable_scofix, bool, 0644);
1321 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1323 module_param(force_scofix, bool, 0644);
1324 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1326 module_param(reset, bool, 0644);
1327 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1329 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1330 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1331 MODULE_VERSION(VERSION);
1332 MODULE_LICENSE("GPL");