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, 0x21e8) },
107 { USB_DEVICE(0x0a5c, 0x21f3) },
108 { USB_DEVICE(0x413c, 0x8197) },
110 { } /* Terminating entry */
113 MODULE_DEVICE_TABLE(usb, btusb_table);
115 static struct usb_device_id blacklist_table[] = {
116 /* CSR BlueCore devices */
117 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
119 /* Broadcom BCM2033 without firmware */
120 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
122 /* Atheros 3011 with sflash firmware */
123 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
124 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
125 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
126 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
128 /* Atheros AR9285 Malbec with sflash firmware */
129 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
131 /* Atheros 3012 with sflash firmware */
132 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
133 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
134 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
136 /* Atheros AR5BBU12 with sflash firmware */
137 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
139 /* Broadcom BCM2035 */
140 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
141 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
142 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
144 /* Broadcom BCM2045 */
145 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
146 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
148 /* IBM/Lenovo ThinkPad with Broadcom chip */
149 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
150 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
152 /* HP laptop with Broadcom chip */
153 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
155 /* Dell laptop with Broadcom chip */
156 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
158 /* Dell Wireless 370 and 410 devices */
159 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
160 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
162 /* Belkin F8T012 and F8T013 devices */
163 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
164 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
166 /* Asus WL-BTD202 device */
167 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
169 /* Kensington Bluetooth USB adapter */
170 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
172 /* RTX Telecom based adapters with buggy SCO support */
173 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
174 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
176 /* CONWISE Technology based adapters with buggy SCO support */
177 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
179 /* Digianswer devices */
180 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
181 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
183 /* CSR BlueCore Bluetooth Sniffer */
184 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
186 /* Frontline ComProbe Bluetooth Sniffer */
187 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
189 { } /* Terminating entry */
192 #define BTUSB_MAX_ISOC_FRAMES 10
194 #define BTUSB_INTR_RUNNING 0
195 #define BTUSB_BULK_RUNNING 1
196 #define BTUSB_ISOC_RUNNING 2
197 #define BTUSB_SUSPENDING 3
198 #define BTUSB_DID_ISO_RESUME 4
201 struct hci_dev *hdev;
202 struct usb_device *udev;
203 struct usb_interface *intf;
204 struct usb_interface *isoc;
210 struct work_struct work;
211 struct work_struct waker;
213 struct usb_anchor tx_anchor;
214 struct usb_anchor intr_anchor;
215 struct usb_anchor bulk_anchor;
216 struct usb_anchor isoc_anchor;
217 struct usb_anchor deferred;
221 struct usb_endpoint_descriptor *intr_ep;
222 struct usb_endpoint_descriptor *bulk_tx_ep;
223 struct usb_endpoint_descriptor *bulk_rx_ep;
224 struct usb_endpoint_descriptor *isoc_tx_ep;
225 struct usb_endpoint_descriptor *isoc_rx_ep;
229 unsigned int sco_num;
234 static int inc_tx(struct btusb_data *data)
239 spin_lock_irqsave(&data->txlock, flags);
240 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
242 data->tx_in_flight++;
243 spin_unlock_irqrestore(&data->txlock, flags);
248 static void btusb_intr_complete(struct urb *urb)
250 struct hci_dev *hdev = urb->context;
251 struct btusb_data *data = hci_get_drvdata(hdev);
254 BT_DBG("%s urb %p status %d count %d", hdev->name,
255 urb, urb->status, urb->actual_length);
257 if (!test_bit(HCI_RUNNING, &hdev->flags))
260 if (urb->status == 0) {
261 hdev->stat.byte_rx += urb->actual_length;
263 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
264 urb->transfer_buffer,
265 urb->actual_length) < 0) {
266 BT_ERR("%s corrupted event packet", hdev->name);
271 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
274 usb_mark_last_busy(data->udev);
275 usb_anchor_urb(urb, &data->intr_anchor);
277 err = usb_submit_urb(urb, GFP_ATOMIC);
279 /* -EPERM: urb is being killed;
280 * -ENODEV: device got disconnected */
281 if (err != -EPERM && err != -ENODEV)
282 BT_ERR("%s urb %p failed to resubmit (%d)",
283 hdev->name, urb, -err);
284 usb_unanchor_urb(urb);
288 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
290 struct btusb_data *data = hci_get_drvdata(hdev);
296 BT_DBG("%s", hdev->name);
301 urb = usb_alloc_urb(0, mem_flags);
305 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
307 buf = kmalloc(size, mem_flags);
313 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
315 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
316 btusb_intr_complete, hdev,
317 data->intr_ep->bInterval);
319 urb->transfer_flags |= URB_FREE_BUFFER;
321 usb_anchor_urb(urb, &data->intr_anchor);
323 err = usb_submit_urb(urb, mem_flags);
325 if (err != -EPERM && err != -ENODEV)
326 BT_ERR("%s urb %p submission failed (%d)",
327 hdev->name, urb, -err);
328 usb_unanchor_urb(urb);
336 static void btusb_bulk_complete(struct urb *urb)
338 struct hci_dev *hdev = urb->context;
339 struct btusb_data *data = hci_get_drvdata(hdev);
342 BT_DBG("%s urb %p status %d count %d", hdev->name,
343 urb, urb->status, urb->actual_length);
345 if (!test_bit(HCI_RUNNING, &hdev->flags))
348 if (urb->status == 0) {
349 hdev->stat.byte_rx += urb->actual_length;
351 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
352 urb->transfer_buffer,
353 urb->actual_length) < 0) {
354 BT_ERR("%s corrupted ACL packet", hdev->name);
359 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
362 usb_anchor_urb(urb, &data->bulk_anchor);
363 usb_mark_last_busy(data->udev);
365 err = usb_submit_urb(urb, GFP_ATOMIC);
367 /* -EPERM: urb is being killed;
368 * -ENODEV: device got disconnected */
369 if (err != -EPERM && err != -ENODEV)
370 BT_ERR("%s urb %p failed to resubmit (%d)",
371 hdev->name, urb, -err);
372 usb_unanchor_urb(urb);
376 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
378 struct btusb_data *data = hci_get_drvdata(hdev);
382 int err, size = HCI_MAX_FRAME_SIZE;
384 BT_DBG("%s", hdev->name);
386 if (!data->bulk_rx_ep)
389 urb = usb_alloc_urb(0, mem_flags);
393 buf = kmalloc(size, mem_flags);
399 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
401 usb_fill_bulk_urb(urb, data->udev, pipe,
402 buf, size, btusb_bulk_complete, hdev);
404 urb->transfer_flags |= URB_FREE_BUFFER;
406 usb_mark_last_busy(data->udev);
407 usb_anchor_urb(urb, &data->bulk_anchor);
409 err = usb_submit_urb(urb, mem_flags);
411 if (err != -EPERM && err != -ENODEV)
412 BT_ERR("%s urb %p submission failed (%d)",
413 hdev->name, urb, -err);
414 usb_unanchor_urb(urb);
422 static void btusb_isoc_complete(struct urb *urb)
424 struct hci_dev *hdev = urb->context;
425 struct btusb_data *data = hci_get_drvdata(hdev);
428 BT_DBG("%s urb %p status %d count %d", hdev->name,
429 urb, urb->status, urb->actual_length);
431 if (!test_bit(HCI_RUNNING, &hdev->flags))
434 if (urb->status == 0) {
435 for (i = 0; i < urb->number_of_packets; i++) {
436 unsigned int offset = urb->iso_frame_desc[i].offset;
437 unsigned int length = urb->iso_frame_desc[i].actual_length;
439 if (urb->iso_frame_desc[i].status)
442 hdev->stat.byte_rx += length;
444 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
445 urb->transfer_buffer + offset,
447 BT_ERR("%s corrupted SCO packet", hdev->name);
453 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
456 usb_anchor_urb(urb, &data->isoc_anchor);
458 err = usb_submit_urb(urb, GFP_ATOMIC);
460 /* -EPERM: urb is being killed;
461 * -ENODEV: device got disconnected */
462 if (err != -EPERM && err != -ENODEV)
463 BT_ERR("%s urb %p failed to resubmit (%d)",
464 hdev->name, urb, -err);
465 usb_unanchor_urb(urb);
469 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
473 BT_DBG("len %d mtu %d", len, mtu);
475 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
476 i++, offset += mtu, len -= mtu) {
477 urb->iso_frame_desc[i].offset = offset;
478 urb->iso_frame_desc[i].length = mtu;
481 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
482 urb->iso_frame_desc[i].offset = offset;
483 urb->iso_frame_desc[i].length = len;
487 urb->number_of_packets = i;
490 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
492 struct btusb_data *data = hci_get_drvdata(hdev);
498 BT_DBG("%s", hdev->name);
500 if (!data->isoc_rx_ep)
503 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
507 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
508 BTUSB_MAX_ISOC_FRAMES;
510 buf = kmalloc(size, mem_flags);
516 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
518 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
519 hdev, data->isoc_rx_ep->bInterval);
521 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
523 __fill_isoc_descriptor(urb, size,
524 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
526 usb_anchor_urb(urb, &data->isoc_anchor);
528 err = usb_submit_urb(urb, mem_flags);
530 if (err != -EPERM && err != -ENODEV)
531 BT_ERR("%s urb %p submission failed (%d)",
532 hdev->name, urb, -err);
533 usb_unanchor_urb(urb);
541 static void btusb_tx_complete(struct urb *urb)
543 struct sk_buff *skb = urb->context;
544 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
545 struct btusb_data *data = hci_get_drvdata(hdev);
547 BT_DBG("%s urb %p status %d count %d", hdev->name,
548 urb, urb->status, urb->actual_length);
550 if (!test_bit(HCI_RUNNING, &hdev->flags))
554 hdev->stat.byte_tx += urb->transfer_buffer_length;
559 spin_lock(&data->txlock);
560 data->tx_in_flight--;
561 spin_unlock(&data->txlock);
563 kfree(urb->setup_packet);
568 static void btusb_isoc_tx_complete(struct urb *urb)
570 struct sk_buff *skb = urb->context;
571 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
573 BT_DBG("%s urb %p status %d count %d", hdev->name,
574 urb, urb->status, urb->actual_length);
576 if (!test_bit(HCI_RUNNING, &hdev->flags))
580 hdev->stat.byte_tx += urb->transfer_buffer_length;
585 kfree(urb->setup_packet);
590 static int btusb_open(struct hci_dev *hdev)
592 struct btusb_data *data = hci_get_drvdata(hdev);
595 BT_DBG("%s", hdev->name);
597 err = usb_autopm_get_interface(data->intf);
601 data->intf->needs_remote_wakeup = 1;
603 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
606 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
609 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
613 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
615 usb_kill_anchored_urbs(&data->intr_anchor);
619 set_bit(BTUSB_BULK_RUNNING, &data->flags);
620 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
623 usb_autopm_put_interface(data->intf);
627 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
628 clear_bit(HCI_RUNNING, &hdev->flags);
629 usb_autopm_put_interface(data->intf);
633 static void btusb_stop_traffic(struct btusb_data *data)
635 usb_kill_anchored_urbs(&data->intr_anchor);
636 usb_kill_anchored_urbs(&data->bulk_anchor);
637 usb_kill_anchored_urbs(&data->isoc_anchor);
640 static int btusb_close(struct hci_dev *hdev)
642 struct btusb_data *data = hci_get_drvdata(hdev);
645 BT_DBG("%s", hdev->name);
647 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
650 cancel_work_sync(&data->work);
651 cancel_work_sync(&data->waker);
653 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
654 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
655 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
657 btusb_stop_traffic(data);
658 err = usb_autopm_get_interface(data->intf);
662 data->intf->needs_remote_wakeup = 0;
663 usb_autopm_put_interface(data->intf);
666 usb_scuttle_anchored_urbs(&data->deferred);
670 static int btusb_flush(struct hci_dev *hdev)
672 struct btusb_data *data = hci_get_drvdata(hdev);
674 BT_DBG("%s", hdev->name);
676 usb_kill_anchored_urbs(&data->tx_anchor);
681 static int btusb_send_frame(struct sk_buff *skb)
683 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
684 struct btusb_data *data = hci_get_drvdata(hdev);
685 struct usb_ctrlrequest *dr;
690 BT_DBG("%s", hdev->name);
692 if (!test_bit(HCI_RUNNING, &hdev->flags))
695 switch (bt_cb(skb)->pkt_type) {
696 case HCI_COMMAND_PKT:
697 urb = usb_alloc_urb(0, GFP_ATOMIC);
701 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
707 dr->bRequestType = data->cmdreq_type;
711 dr->wLength = __cpu_to_le16(skb->len);
713 pipe = usb_sndctrlpipe(data->udev, 0x00);
715 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
716 skb->data, skb->len, btusb_tx_complete, skb);
721 case HCI_ACLDATA_PKT:
722 if (!data->bulk_tx_ep)
725 urb = usb_alloc_urb(0, GFP_ATOMIC);
729 pipe = usb_sndbulkpipe(data->udev,
730 data->bulk_tx_ep->bEndpointAddress);
732 usb_fill_bulk_urb(urb, data->udev, pipe,
733 skb->data, skb->len, btusb_tx_complete, skb);
738 case HCI_SCODATA_PKT:
739 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
742 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
746 pipe = usb_sndisocpipe(data->udev,
747 data->isoc_tx_ep->bEndpointAddress);
749 usb_fill_int_urb(urb, data->udev, pipe,
750 skb->data, skb->len, btusb_isoc_tx_complete,
751 skb, data->isoc_tx_ep->bInterval);
753 urb->transfer_flags = URB_ISO_ASAP;
755 __fill_isoc_descriptor(urb, skb->len,
756 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
767 usb_anchor_urb(urb, &data->deferred);
768 schedule_work(&data->waker);
774 usb_anchor_urb(urb, &data->tx_anchor);
776 err = usb_submit_urb(urb, GFP_ATOMIC);
778 if (err != -EPERM && err != -ENODEV)
779 BT_ERR("%s urb %p submission failed (%d)",
780 hdev->name, urb, -err);
781 kfree(urb->setup_packet);
782 usb_unanchor_urb(urb);
784 usb_mark_last_busy(data->udev);
792 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
794 struct btusb_data *data = hci_get_drvdata(hdev);
796 BT_DBG("%s evt %d", hdev->name, evt);
798 if (hdev->conn_hash.sco_num != data->sco_num) {
799 data->sco_num = hdev->conn_hash.sco_num;
800 schedule_work(&data->work);
804 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
806 struct btusb_data *data = hci_get_drvdata(hdev);
807 struct usb_interface *intf = data->isoc;
808 struct usb_endpoint_descriptor *ep_desc;
814 err = usb_set_interface(data->udev, 1, altsetting);
816 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
820 data->isoc_altsetting = altsetting;
822 data->isoc_tx_ep = NULL;
823 data->isoc_rx_ep = NULL;
825 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
826 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
828 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
829 data->isoc_tx_ep = ep_desc;
833 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
834 data->isoc_rx_ep = ep_desc;
839 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
840 BT_ERR("%s invalid SCO descriptors", hdev->name);
847 static void btusb_work(struct work_struct *work)
849 struct btusb_data *data = container_of(work, struct btusb_data, work);
850 struct hci_dev *hdev = data->hdev;
853 if (hdev->conn_hash.sco_num > 0) {
854 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
855 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
857 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
858 usb_kill_anchored_urbs(&data->isoc_anchor);
862 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
864 if (data->isoc_altsetting != 2) {
865 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
866 usb_kill_anchored_urbs(&data->isoc_anchor);
868 if (__set_isoc_interface(hdev, 2) < 0)
872 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
873 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
874 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
876 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
879 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
880 usb_kill_anchored_urbs(&data->isoc_anchor);
882 __set_isoc_interface(hdev, 0);
883 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
884 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
888 static void btusb_waker(struct work_struct *work)
890 struct btusb_data *data = container_of(work, struct btusb_data, waker);
893 err = usb_autopm_get_interface(data->intf);
897 usb_autopm_put_interface(data->intf);
900 static int btusb_probe(struct usb_interface *intf,
901 const struct usb_device_id *id)
903 struct usb_endpoint_descriptor *ep_desc;
904 struct btusb_data *data;
905 struct hci_dev *hdev;
908 BT_DBG("intf %p id %p", intf, id);
910 /* interface numbers are hardcoded in the spec */
911 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
914 if (!id->driver_info) {
915 const struct usb_device_id *match;
916 match = usb_match_id(intf, blacklist_table);
921 if (id->driver_info == BTUSB_IGNORE)
924 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
927 if (ignore_csr && id->driver_info & BTUSB_CSR)
930 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
933 if (id->driver_info & BTUSB_ATH3012) {
934 struct usb_device *udev = interface_to_usbdev(intf);
936 /* Old firmware would otherwise let ath3k driver load
937 * patch and sysconfig files */
938 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
942 data = kzalloc(sizeof(*data), GFP_KERNEL);
946 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
947 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
949 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
950 data->intr_ep = ep_desc;
954 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
955 data->bulk_tx_ep = ep_desc;
959 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
960 data->bulk_rx_ep = ep_desc;
965 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
970 data->cmdreq_type = USB_TYPE_CLASS;
972 data->udev = interface_to_usbdev(intf);
975 spin_lock_init(&data->lock);
977 INIT_WORK(&data->work, btusb_work);
978 INIT_WORK(&data->waker, btusb_waker);
979 spin_lock_init(&data->txlock);
981 init_usb_anchor(&data->tx_anchor);
982 init_usb_anchor(&data->intr_anchor);
983 init_usb_anchor(&data->bulk_anchor);
984 init_usb_anchor(&data->isoc_anchor);
985 init_usb_anchor(&data->deferred);
987 hdev = hci_alloc_dev();
994 hci_set_drvdata(hdev, data);
998 SET_HCIDEV_DEV(hdev, &intf->dev);
1000 hdev->open = btusb_open;
1001 hdev->close = btusb_close;
1002 hdev->flush = btusb_flush;
1003 hdev->send = btusb_send_frame;
1004 hdev->notify = btusb_notify;
1006 /* Interface numbers are hardcoded in the specification */
1007 data->isoc = usb_ifnum_to_if(data->udev, 1);
1010 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1012 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1013 if (!disable_scofix)
1014 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1017 if (id->driver_info & BTUSB_BROKEN_ISOC)
1020 if (id->driver_info & BTUSB_DIGIANSWER) {
1021 data->cmdreq_type = USB_TYPE_VENDOR;
1022 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1025 if (id->driver_info & BTUSB_CSR) {
1026 struct usb_device *udev = data->udev;
1028 /* Old firmware would otherwise execute USB reset */
1029 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1030 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1033 if (id->driver_info & BTUSB_SNIFFER) {
1034 struct usb_device *udev = data->udev;
1036 /* New sniffer firmware has crippled HCI interface */
1037 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1038 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1043 if (id->driver_info & BTUSB_BCM92035) {
1044 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1045 struct sk_buff *skb;
1047 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1049 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1050 skb_queue_tail(&hdev->driver_init, skb);
1055 err = usb_driver_claim_interface(&btusb_driver,
1064 err = hci_register_dev(hdev);
1071 usb_set_intfdata(intf, data);
1076 static void btusb_disconnect(struct usb_interface *intf)
1078 struct btusb_data *data = usb_get_intfdata(intf);
1079 struct hci_dev *hdev;
1081 BT_DBG("intf %p", intf);
1087 usb_set_intfdata(data->intf, NULL);
1090 usb_set_intfdata(data->isoc, NULL);
1092 hci_unregister_dev(hdev);
1094 if (intf == data->isoc)
1095 usb_driver_release_interface(&btusb_driver, data->intf);
1096 else if (data->isoc)
1097 usb_driver_release_interface(&btusb_driver, data->isoc);
1104 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1106 struct btusb_data *data = usb_get_intfdata(intf);
1108 BT_DBG("intf %p", intf);
1110 if (data->suspend_count++)
1113 spin_lock_irq(&data->txlock);
1114 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1115 set_bit(BTUSB_SUSPENDING, &data->flags);
1116 spin_unlock_irq(&data->txlock);
1118 spin_unlock_irq(&data->txlock);
1119 data->suspend_count--;
1123 cancel_work_sync(&data->work);
1125 btusb_stop_traffic(data);
1126 usb_kill_anchored_urbs(&data->tx_anchor);
1131 static void play_deferred(struct btusb_data *data)
1136 while ((urb = usb_get_from_anchor(&data->deferred))) {
1137 err = usb_submit_urb(urb, GFP_ATOMIC);
1141 data->tx_in_flight++;
1143 usb_scuttle_anchored_urbs(&data->deferred);
1146 static int btusb_resume(struct usb_interface *intf)
1148 struct btusb_data *data = usb_get_intfdata(intf);
1149 struct hci_dev *hdev = data->hdev;
1152 BT_DBG("intf %p", intf);
1154 if (--data->suspend_count)
1157 if (!test_bit(HCI_RUNNING, &hdev->flags))
1160 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1161 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1163 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1168 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1169 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1171 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1175 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1178 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1179 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1180 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1182 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1185 spin_lock_irq(&data->txlock);
1186 play_deferred(data);
1187 clear_bit(BTUSB_SUSPENDING, &data->flags);
1188 spin_unlock_irq(&data->txlock);
1189 schedule_work(&data->work);
1194 usb_scuttle_anchored_urbs(&data->deferred);
1196 spin_lock_irq(&data->txlock);
1197 clear_bit(BTUSB_SUSPENDING, &data->flags);
1198 spin_unlock_irq(&data->txlock);
1204 static struct usb_driver btusb_driver = {
1206 .probe = btusb_probe,
1207 .disconnect = btusb_disconnect,
1209 .suspend = btusb_suspend,
1210 .resume = btusb_resume,
1212 .id_table = btusb_table,
1213 .supports_autosuspend = 1,
1216 module_usb_driver(btusb_driver);
1218 module_param(ignore_dga, bool, 0644);
1219 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1221 module_param(ignore_csr, bool, 0644);
1222 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1224 module_param(ignore_sniffer, bool, 0644);
1225 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1227 module_param(disable_scofix, bool, 0644);
1228 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1230 module_param(force_scofix, bool, 0644);
1231 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1233 module_param(reset, bool, 0644);
1234 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1236 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1237 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1238 MODULE_VERSION(VERSION);
1239 MODULE_LICENSE("GPL");