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 bool ignore_dga;
41 static bool ignore_csr;
42 static bool ignore_sniffer;
43 static bool disable_scofix;
44 static bool force_scofix;
46 static bool reset = 1;
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
59 static struct usb_device_id btusb_table[] = {
60 /* Generic Bluetooth USB device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x05ac, 0x21e1) },
66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
70 { USB_DEVICE(0x05ac, 0x8215) },
72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
100 /* Canyon CN-BTU1 with HID interfaces */
101 { USB_DEVICE(0x0c10, 0x0000) },
103 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0a5c, 0x21e3) },
105 { USB_DEVICE(0x0a5c, 0x21e6) },
106 { USB_DEVICE(0x0a5c, 0x21f3) },
107 { USB_DEVICE(0x413c, 0x8197) },
109 { } /* Terminating entry */
112 MODULE_DEVICE_TABLE(usb, btusb_table);
114 static struct usb_device_id blacklist_table[] = {
115 /* CSR BlueCore devices */
116 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
118 /* Broadcom BCM2033 without firmware */
119 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
121 /* Atheros 3011 with sflash firmware */
122 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
123 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
124 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
125 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
127 /* Atheros AR9285 Malbec with sflash firmware */
128 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
130 /* Atheros 3012 with sflash firmware */
131 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
133 /* Atheros AR5BBU12 with sflash firmware */
134 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
136 /* Broadcom BCM2035 */
137 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
138 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
139 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
141 /* Broadcom BCM2045 */
142 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
143 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
145 /* IBM/Lenovo ThinkPad with Broadcom chip */
146 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
147 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
149 /* HP laptop with Broadcom chip */
150 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
152 /* Dell laptop with Broadcom chip */
153 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
155 /* Dell Wireless 370 and 410 devices */
156 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
157 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
159 /* Belkin F8T012 and F8T013 devices */
160 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
161 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
163 /* Asus WL-BTD202 device */
164 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
166 /* Kensington Bluetooth USB adapter */
167 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
169 /* RTX Telecom based adapters with buggy SCO support */
170 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
171 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
173 /* CONWISE Technology based adapters with buggy SCO support */
174 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
176 /* Digianswer devices */
177 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
178 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
180 /* CSR BlueCore Bluetooth Sniffer */
181 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
183 /* Frontline ComProbe Bluetooth Sniffer */
184 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
186 { } /* Terminating entry */
189 #define BTUSB_MAX_ISOC_FRAMES 10
191 #define BTUSB_INTR_RUNNING 0
192 #define BTUSB_BULK_RUNNING 1
193 #define BTUSB_ISOC_RUNNING 2
194 #define BTUSB_SUSPENDING 3
195 #define BTUSB_DID_ISO_RESUME 4
198 struct hci_dev *hdev;
199 struct usb_device *udev;
200 struct usb_interface *intf;
201 struct usb_interface *isoc;
207 struct work_struct work;
208 struct work_struct waker;
210 struct usb_anchor tx_anchor;
211 struct usb_anchor intr_anchor;
212 struct usb_anchor bulk_anchor;
213 struct usb_anchor isoc_anchor;
214 struct usb_anchor deferred;
218 struct usb_endpoint_descriptor *intr_ep;
219 struct usb_endpoint_descriptor *bulk_tx_ep;
220 struct usb_endpoint_descriptor *bulk_rx_ep;
221 struct usb_endpoint_descriptor *isoc_tx_ep;
222 struct usb_endpoint_descriptor *isoc_rx_ep;
226 unsigned int sco_num;
231 static int inc_tx(struct btusb_data *data)
236 spin_lock_irqsave(&data->txlock, flags);
237 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
239 data->tx_in_flight++;
240 spin_unlock_irqrestore(&data->txlock, flags);
245 static void btusb_intr_complete(struct urb *urb)
247 struct hci_dev *hdev = urb->context;
248 struct btusb_data *data = hci_get_drvdata(hdev);
251 BT_DBG("%s urb %p status %d count %d", hdev->name,
252 urb, urb->status, urb->actual_length);
254 if (!test_bit(HCI_RUNNING, &hdev->flags))
257 if (urb->status == 0) {
258 hdev->stat.byte_rx += urb->actual_length;
260 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
261 urb->transfer_buffer,
262 urb->actual_length) < 0) {
263 BT_ERR("%s corrupted event packet", hdev->name);
268 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
271 usb_mark_last_busy(data->udev);
272 usb_anchor_urb(urb, &data->intr_anchor);
274 err = usb_submit_urb(urb, GFP_ATOMIC);
276 /* -EPERM: urb is being killed;
277 * -ENODEV: device got disconnected */
278 if (err != -EPERM && err != -ENODEV)
279 BT_ERR("%s urb %p failed to resubmit (%d)",
280 hdev->name, urb, -err);
281 usb_unanchor_urb(urb);
285 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
287 struct btusb_data *data = hci_get_drvdata(hdev);
293 BT_DBG("%s", hdev->name);
298 urb = usb_alloc_urb(0, mem_flags);
302 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
304 buf = kmalloc(size, mem_flags);
310 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
312 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
313 btusb_intr_complete, hdev,
314 data->intr_ep->bInterval);
316 urb->transfer_flags |= URB_FREE_BUFFER;
318 usb_anchor_urb(urb, &data->intr_anchor);
320 err = usb_submit_urb(urb, mem_flags);
322 if (err != -EPERM && err != -ENODEV)
323 BT_ERR("%s urb %p submission failed (%d)",
324 hdev->name, urb, -err);
325 usb_unanchor_urb(urb);
333 static void btusb_bulk_complete(struct urb *urb)
335 struct hci_dev *hdev = urb->context;
336 struct btusb_data *data = hci_get_drvdata(hdev);
339 BT_DBG("%s urb %p status %d count %d", hdev->name,
340 urb, urb->status, urb->actual_length);
342 if (!test_bit(HCI_RUNNING, &hdev->flags))
345 if (urb->status == 0) {
346 hdev->stat.byte_rx += urb->actual_length;
348 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
349 urb->transfer_buffer,
350 urb->actual_length) < 0) {
351 BT_ERR("%s corrupted ACL packet", hdev->name);
356 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
359 usb_anchor_urb(urb, &data->bulk_anchor);
360 usb_mark_last_busy(data->udev);
362 err = usb_submit_urb(urb, GFP_ATOMIC);
364 /* -EPERM: urb is being killed;
365 * -ENODEV: device got disconnected */
366 if (err != -EPERM && err != -ENODEV)
367 BT_ERR("%s urb %p failed to resubmit (%d)",
368 hdev->name, urb, -err);
369 usb_unanchor_urb(urb);
373 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
375 struct btusb_data *data = hci_get_drvdata(hdev);
379 int err, size = HCI_MAX_FRAME_SIZE;
381 BT_DBG("%s", hdev->name);
383 if (!data->bulk_rx_ep)
386 urb = usb_alloc_urb(0, mem_flags);
390 buf = kmalloc(size, mem_flags);
396 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
398 usb_fill_bulk_urb(urb, data->udev, pipe,
399 buf, size, btusb_bulk_complete, hdev);
401 urb->transfer_flags |= URB_FREE_BUFFER;
403 usb_mark_last_busy(data->udev);
404 usb_anchor_urb(urb, &data->bulk_anchor);
406 err = usb_submit_urb(urb, mem_flags);
408 if (err != -EPERM && err != -ENODEV)
409 BT_ERR("%s urb %p submission failed (%d)",
410 hdev->name, urb, -err);
411 usb_unanchor_urb(urb);
419 static void btusb_isoc_complete(struct urb *urb)
421 struct hci_dev *hdev = urb->context;
422 struct btusb_data *data = hci_get_drvdata(hdev);
425 BT_DBG("%s urb %p status %d count %d", hdev->name,
426 urb, urb->status, urb->actual_length);
428 if (!test_bit(HCI_RUNNING, &hdev->flags))
431 if (urb->status == 0) {
432 for (i = 0; i < urb->number_of_packets; i++) {
433 unsigned int offset = urb->iso_frame_desc[i].offset;
434 unsigned int length = urb->iso_frame_desc[i].actual_length;
436 if (urb->iso_frame_desc[i].status)
439 hdev->stat.byte_rx += length;
441 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
442 urb->transfer_buffer + offset,
444 BT_ERR("%s corrupted SCO packet", hdev->name);
450 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
453 usb_anchor_urb(urb, &data->isoc_anchor);
455 err = usb_submit_urb(urb, GFP_ATOMIC);
457 /* -EPERM: urb is being killed;
458 * -ENODEV: device got disconnected */
459 if (err != -EPERM && err != -ENODEV)
460 BT_ERR("%s urb %p failed to resubmit (%d)",
461 hdev->name, urb, -err);
462 usb_unanchor_urb(urb);
466 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
470 BT_DBG("len %d mtu %d", len, mtu);
472 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
473 i++, offset += mtu, len -= mtu) {
474 urb->iso_frame_desc[i].offset = offset;
475 urb->iso_frame_desc[i].length = mtu;
478 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
479 urb->iso_frame_desc[i].offset = offset;
480 urb->iso_frame_desc[i].length = len;
484 urb->number_of_packets = i;
487 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
489 struct btusb_data *data = hci_get_drvdata(hdev);
495 BT_DBG("%s", hdev->name);
497 if (!data->isoc_rx_ep)
500 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
504 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
505 BTUSB_MAX_ISOC_FRAMES;
507 buf = kmalloc(size, mem_flags);
513 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
515 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
516 hdev, data->isoc_rx_ep->bInterval);
518 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
520 __fill_isoc_descriptor(urb, size,
521 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
523 usb_anchor_urb(urb, &data->isoc_anchor);
525 err = usb_submit_urb(urb, mem_flags);
527 if (err != -EPERM && err != -ENODEV)
528 BT_ERR("%s urb %p submission failed (%d)",
529 hdev->name, urb, -err);
530 usb_unanchor_urb(urb);
538 static void btusb_tx_complete(struct urb *urb)
540 struct sk_buff *skb = urb->context;
541 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
542 struct btusb_data *data = hci_get_drvdata(hdev);
544 BT_DBG("%s urb %p status %d count %d", hdev->name,
545 urb, urb->status, urb->actual_length);
547 if (!test_bit(HCI_RUNNING, &hdev->flags))
551 hdev->stat.byte_tx += urb->transfer_buffer_length;
556 spin_lock(&data->txlock);
557 data->tx_in_flight--;
558 spin_unlock(&data->txlock);
560 kfree(urb->setup_packet);
565 static void btusb_isoc_tx_complete(struct urb *urb)
567 struct sk_buff *skb = urb->context;
568 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
570 BT_DBG("%s urb %p status %d count %d", hdev->name,
571 urb, urb->status, urb->actual_length);
573 if (!test_bit(HCI_RUNNING, &hdev->flags))
577 hdev->stat.byte_tx += urb->transfer_buffer_length;
582 kfree(urb->setup_packet);
587 static int btusb_open(struct hci_dev *hdev)
589 struct btusb_data *data = hci_get_drvdata(hdev);
592 BT_DBG("%s", hdev->name);
594 err = usb_autopm_get_interface(data->intf);
598 data->intf->needs_remote_wakeup = 1;
600 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
603 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
606 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
610 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
612 usb_kill_anchored_urbs(&data->intr_anchor);
616 set_bit(BTUSB_BULK_RUNNING, &data->flags);
617 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
620 usb_autopm_put_interface(data->intf);
624 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
625 clear_bit(HCI_RUNNING, &hdev->flags);
626 usb_autopm_put_interface(data->intf);
630 static void btusb_stop_traffic(struct btusb_data *data)
632 usb_kill_anchored_urbs(&data->intr_anchor);
633 usb_kill_anchored_urbs(&data->bulk_anchor);
634 usb_kill_anchored_urbs(&data->isoc_anchor);
637 static int btusb_close(struct hci_dev *hdev)
639 struct btusb_data *data = hci_get_drvdata(hdev);
642 BT_DBG("%s", hdev->name);
644 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
647 cancel_work_sync(&data->work);
648 cancel_work_sync(&data->waker);
650 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
651 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
652 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
654 btusb_stop_traffic(data);
655 err = usb_autopm_get_interface(data->intf);
659 data->intf->needs_remote_wakeup = 0;
660 usb_autopm_put_interface(data->intf);
663 usb_scuttle_anchored_urbs(&data->deferred);
667 static int btusb_flush(struct hci_dev *hdev)
669 struct btusb_data *data = hci_get_drvdata(hdev);
671 BT_DBG("%s", hdev->name);
673 usb_kill_anchored_urbs(&data->tx_anchor);
678 static int btusb_send_frame(struct sk_buff *skb)
680 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
681 struct btusb_data *data = hci_get_drvdata(hdev);
682 struct usb_ctrlrequest *dr;
687 BT_DBG("%s", hdev->name);
689 if (!test_bit(HCI_RUNNING, &hdev->flags))
692 switch (bt_cb(skb)->pkt_type) {
693 case HCI_COMMAND_PKT:
694 urb = usb_alloc_urb(0, GFP_ATOMIC);
698 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
704 dr->bRequestType = data->cmdreq_type;
708 dr->wLength = __cpu_to_le16(skb->len);
710 pipe = usb_sndctrlpipe(data->udev, 0x00);
712 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
713 skb->data, skb->len, btusb_tx_complete, skb);
718 case HCI_ACLDATA_PKT:
719 if (!data->bulk_tx_ep)
722 urb = usb_alloc_urb(0, GFP_ATOMIC);
726 pipe = usb_sndbulkpipe(data->udev,
727 data->bulk_tx_ep->bEndpointAddress);
729 usb_fill_bulk_urb(urb, data->udev, pipe,
730 skb->data, skb->len, btusb_tx_complete, skb);
735 case HCI_SCODATA_PKT:
736 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
739 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
743 pipe = usb_sndisocpipe(data->udev,
744 data->isoc_tx_ep->bEndpointAddress);
746 usb_fill_int_urb(urb, data->udev, pipe,
747 skb->data, skb->len, btusb_isoc_tx_complete,
748 skb, data->isoc_tx_ep->bInterval);
750 urb->transfer_flags = URB_ISO_ASAP;
752 __fill_isoc_descriptor(urb, skb->len,
753 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
764 usb_anchor_urb(urb, &data->deferred);
765 schedule_work(&data->waker);
771 usb_anchor_urb(urb, &data->tx_anchor);
773 err = usb_submit_urb(urb, GFP_ATOMIC);
775 if (err != -EPERM && err != -ENODEV)
776 BT_ERR("%s urb %p submission failed (%d)",
777 hdev->name, urb, -err);
778 kfree(urb->setup_packet);
779 usb_unanchor_urb(urb);
781 usb_mark_last_busy(data->udev);
789 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
791 struct btusb_data *data = hci_get_drvdata(hdev);
793 BT_DBG("%s evt %d", hdev->name, evt);
795 if (hdev->conn_hash.sco_num != data->sco_num) {
796 data->sco_num = hdev->conn_hash.sco_num;
797 schedule_work(&data->work);
801 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
803 struct btusb_data *data = hci_get_drvdata(hdev);
804 struct usb_interface *intf = data->isoc;
805 struct usb_endpoint_descriptor *ep_desc;
811 err = usb_set_interface(data->udev, 1, altsetting);
813 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
817 data->isoc_altsetting = altsetting;
819 data->isoc_tx_ep = NULL;
820 data->isoc_rx_ep = NULL;
822 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
823 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
825 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
826 data->isoc_tx_ep = ep_desc;
830 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
831 data->isoc_rx_ep = ep_desc;
836 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
837 BT_ERR("%s invalid SCO descriptors", hdev->name);
844 static void btusb_work(struct work_struct *work)
846 struct btusb_data *data = container_of(work, struct btusb_data, work);
847 struct hci_dev *hdev = data->hdev;
850 if (hdev->conn_hash.sco_num > 0) {
851 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
852 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
854 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
855 usb_kill_anchored_urbs(&data->isoc_anchor);
859 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
861 if (data->isoc_altsetting != 2) {
862 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
863 usb_kill_anchored_urbs(&data->isoc_anchor);
865 if (__set_isoc_interface(hdev, 2) < 0)
869 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
870 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
871 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
873 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
876 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
877 usb_kill_anchored_urbs(&data->isoc_anchor);
879 __set_isoc_interface(hdev, 0);
880 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
881 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
885 static void btusb_waker(struct work_struct *work)
887 struct btusb_data *data = container_of(work, struct btusb_data, waker);
890 err = usb_autopm_get_interface(data->intf);
894 usb_autopm_put_interface(data->intf);
897 static int btusb_probe(struct usb_interface *intf,
898 const struct usb_device_id *id)
900 struct usb_endpoint_descriptor *ep_desc;
901 struct btusb_data *data;
902 struct hci_dev *hdev;
905 BT_DBG("intf %p id %p", intf, id);
907 /* interface numbers are hardcoded in the spec */
908 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
911 if (!id->driver_info) {
912 const struct usb_device_id *match;
913 match = usb_match_id(intf, blacklist_table);
918 if (id->driver_info == BTUSB_IGNORE)
921 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
924 if (ignore_csr && id->driver_info & BTUSB_CSR)
927 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
930 if (id->driver_info & BTUSB_ATH3012) {
931 struct usb_device *udev = interface_to_usbdev(intf);
933 /* Old firmware would otherwise let ath3k driver load
934 * patch and sysconfig files */
935 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
939 data = kzalloc(sizeof(*data), GFP_KERNEL);
943 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
944 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
946 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
947 data->intr_ep = ep_desc;
951 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
952 data->bulk_tx_ep = ep_desc;
956 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
957 data->bulk_rx_ep = ep_desc;
962 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
967 data->cmdreq_type = USB_TYPE_CLASS;
969 data->udev = interface_to_usbdev(intf);
972 spin_lock_init(&data->lock);
974 INIT_WORK(&data->work, btusb_work);
975 INIT_WORK(&data->waker, btusb_waker);
976 spin_lock_init(&data->txlock);
978 init_usb_anchor(&data->tx_anchor);
979 init_usb_anchor(&data->intr_anchor);
980 init_usb_anchor(&data->bulk_anchor);
981 init_usb_anchor(&data->isoc_anchor);
982 init_usb_anchor(&data->deferred);
984 hdev = hci_alloc_dev();
991 hci_set_drvdata(hdev, data);
995 SET_HCIDEV_DEV(hdev, &intf->dev);
997 hdev->open = btusb_open;
998 hdev->close = btusb_close;
999 hdev->flush = btusb_flush;
1000 hdev->send = btusb_send_frame;
1001 hdev->notify = btusb_notify;
1003 /* Interface numbers are hardcoded in the specification */
1004 data->isoc = usb_ifnum_to_if(data->udev, 1);
1007 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1009 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1010 if (!disable_scofix)
1011 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1014 if (id->driver_info & BTUSB_BROKEN_ISOC)
1017 if (id->driver_info & BTUSB_DIGIANSWER) {
1018 data->cmdreq_type = USB_TYPE_VENDOR;
1019 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1022 if (id->driver_info & BTUSB_CSR) {
1023 struct usb_device *udev = data->udev;
1025 /* Old firmware would otherwise execute USB reset */
1026 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1027 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1030 if (id->driver_info & BTUSB_SNIFFER) {
1031 struct usb_device *udev = data->udev;
1033 /* New sniffer firmware has crippled HCI interface */
1034 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1035 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1040 if (id->driver_info & BTUSB_BCM92035) {
1041 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1042 struct sk_buff *skb;
1044 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1046 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1047 skb_queue_tail(&hdev->driver_init, skb);
1052 err = usb_driver_claim_interface(&btusb_driver,
1061 err = hci_register_dev(hdev);
1068 usb_set_intfdata(intf, data);
1073 static void btusb_disconnect(struct usb_interface *intf)
1075 struct btusb_data *data = usb_get_intfdata(intf);
1076 struct hci_dev *hdev;
1078 BT_DBG("intf %p", intf);
1084 usb_set_intfdata(data->intf, NULL);
1087 usb_set_intfdata(data->isoc, NULL);
1089 hci_unregister_dev(hdev);
1091 if (intf == data->isoc)
1092 usb_driver_release_interface(&btusb_driver, data->intf);
1093 else if (data->isoc)
1094 usb_driver_release_interface(&btusb_driver, data->isoc);
1101 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1103 struct btusb_data *data = usb_get_intfdata(intf);
1105 BT_DBG("intf %p", intf);
1107 if (data->suspend_count++)
1110 spin_lock_irq(&data->txlock);
1111 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1112 set_bit(BTUSB_SUSPENDING, &data->flags);
1113 spin_unlock_irq(&data->txlock);
1115 spin_unlock_irq(&data->txlock);
1116 data->suspend_count--;
1120 cancel_work_sync(&data->work);
1122 btusb_stop_traffic(data);
1123 usb_kill_anchored_urbs(&data->tx_anchor);
1128 static void play_deferred(struct btusb_data *data)
1133 while ((urb = usb_get_from_anchor(&data->deferred))) {
1134 err = usb_submit_urb(urb, GFP_ATOMIC);
1138 data->tx_in_flight++;
1140 usb_scuttle_anchored_urbs(&data->deferred);
1143 static int btusb_resume(struct usb_interface *intf)
1145 struct btusb_data *data = usb_get_intfdata(intf);
1146 struct hci_dev *hdev = data->hdev;
1149 BT_DBG("intf %p", intf);
1151 if (--data->suspend_count)
1154 if (!test_bit(HCI_RUNNING, &hdev->flags))
1157 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1158 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1160 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1165 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1166 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1168 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1172 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1175 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1176 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1177 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1179 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1182 spin_lock_irq(&data->txlock);
1183 play_deferred(data);
1184 clear_bit(BTUSB_SUSPENDING, &data->flags);
1185 spin_unlock_irq(&data->txlock);
1186 schedule_work(&data->work);
1191 usb_scuttle_anchored_urbs(&data->deferred);
1193 spin_lock_irq(&data->txlock);
1194 clear_bit(BTUSB_SUSPENDING, &data->flags);
1195 spin_unlock_irq(&data->txlock);
1201 static struct usb_driver btusb_driver = {
1203 .probe = btusb_probe,
1204 .disconnect = btusb_disconnect,
1206 .suspend = btusb_suspend,
1207 .resume = btusb_resume,
1209 .id_table = btusb_table,
1210 .supports_autosuspend = 1,
1213 module_usb_driver(btusb_driver);
1215 module_param(ignore_dga, bool, 0644);
1216 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1218 module_param(ignore_csr, bool, 0644);
1219 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1221 module_param(ignore_sniffer, bool, 0644);
1222 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1224 module_param(disable_scofix, bool, 0644);
1225 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1227 module_param(force_scofix, bool, 0644);
1228 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1230 module_param(reset, bool, 0644);
1231 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1233 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1234 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1235 MODULE_VERSION(VERSION);
1236 MODULE_LICENSE("GPL");