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
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(0x413c, 0x8197) },
107 { } /* Terminating entry */
110 MODULE_DEVICE_TABLE(usb, btusb_table);
112 static struct usb_device_id blacklist_table[] = {
113 /* CSR BlueCore devices */
114 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
116 /* Broadcom BCM2033 without firmware */
117 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
119 /* Atheros 3011 with sflash firmware */
120 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
121 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
122 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
124 /* Atheros AR9285 Malbec with sflash firmware */
125 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
127 /* Atheros 3012 with sflash firmware */
128 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
130 /* Atheros AR5BBU12 with sflash firmware */
131 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
133 /* Broadcom BCM2035 */
134 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
135 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
136 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
138 /* Broadcom BCM2045 */
139 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
140 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
142 /* IBM/Lenovo ThinkPad with Broadcom chip */
143 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
144 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
146 /* HP laptop with Broadcom chip */
147 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
149 /* Dell laptop with Broadcom chip */
150 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
152 /* Dell Wireless 370 and 410 devices */
153 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
154 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
156 /* Belkin F8T012 and F8T013 devices */
157 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
158 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
160 /* Asus WL-BTD202 device */
161 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
163 /* Kensington Bluetooth USB adapter */
164 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
166 /* RTX Telecom based adapters with buggy SCO support */
167 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
168 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
170 /* CONWISE Technology based adapters with buggy SCO support */
171 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
173 /* Digianswer devices */
174 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
175 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
177 /* CSR BlueCore Bluetooth Sniffer */
178 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
180 /* Frontline ComProbe Bluetooth Sniffer */
181 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
183 { } /* Terminating entry */
186 #define BTUSB_MAX_ISOC_FRAMES 10
188 #define BTUSB_INTR_RUNNING 0
189 #define BTUSB_BULK_RUNNING 1
190 #define BTUSB_ISOC_RUNNING 2
191 #define BTUSB_SUSPENDING 3
192 #define BTUSB_DID_ISO_RESUME 4
195 struct hci_dev *hdev;
196 struct usb_device *udev;
197 struct usb_interface *intf;
198 struct usb_interface *isoc;
204 struct work_struct work;
205 struct work_struct waker;
207 struct usb_anchor tx_anchor;
208 struct usb_anchor intr_anchor;
209 struct usb_anchor bulk_anchor;
210 struct usb_anchor isoc_anchor;
211 struct usb_anchor deferred;
215 struct usb_endpoint_descriptor *intr_ep;
216 struct usb_endpoint_descriptor *bulk_tx_ep;
217 struct usb_endpoint_descriptor *bulk_rx_ep;
218 struct usb_endpoint_descriptor *isoc_tx_ep;
219 struct usb_endpoint_descriptor *isoc_rx_ep;
223 unsigned int sco_num;
228 static int inc_tx(struct btusb_data *data)
233 spin_lock_irqsave(&data->txlock, flags);
234 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
236 data->tx_in_flight++;
237 spin_unlock_irqrestore(&data->txlock, flags);
242 static void btusb_intr_complete(struct urb *urb)
244 struct hci_dev *hdev = urb->context;
245 struct btusb_data *data = hdev->driver_data;
248 BT_DBG("%s urb %p status %d count %d", hdev->name,
249 urb, urb->status, urb->actual_length);
251 if (!test_bit(HCI_RUNNING, &hdev->flags))
254 if (urb->status == 0) {
255 hdev->stat.byte_rx += urb->actual_length;
257 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
258 urb->transfer_buffer,
259 urb->actual_length) < 0) {
260 BT_ERR("%s corrupted event packet", hdev->name);
265 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
268 usb_mark_last_busy(data->udev);
269 usb_anchor_urb(urb, &data->intr_anchor);
271 err = usb_submit_urb(urb, GFP_ATOMIC);
273 /* -EPERM: urb is being killed;
274 * -ENODEV: device got disconnected */
275 if (err != -EPERM && err != -ENODEV)
276 BT_ERR("%s urb %p failed to resubmit (%d)",
277 hdev->name, urb, -err);
278 usb_unanchor_urb(urb);
282 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
284 struct btusb_data *data = hdev->driver_data;
290 BT_DBG("%s", hdev->name);
295 urb = usb_alloc_urb(0, mem_flags);
299 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
301 buf = kmalloc(size, mem_flags);
307 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
309 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
310 btusb_intr_complete, hdev,
311 data->intr_ep->bInterval);
313 urb->transfer_flags |= URB_FREE_BUFFER;
315 usb_anchor_urb(urb, &data->intr_anchor);
317 err = usb_submit_urb(urb, mem_flags);
319 if (err != -EPERM && err != -ENODEV)
320 BT_ERR("%s urb %p submission failed (%d)",
321 hdev->name, urb, -err);
322 usb_unanchor_urb(urb);
330 static void btusb_bulk_complete(struct urb *urb)
332 struct hci_dev *hdev = urb->context;
333 struct btusb_data *data = hdev->driver_data;
336 BT_DBG("%s urb %p status %d count %d", hdev->name,
337 urb, urb->status, urb->actual_length);
339 if (!test_bit(HCI_RUNNING, &hdev->flags))
342 if (urb->status == 0) {
343 hdev->stat.byte_rx += urb->actual_length;
345 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
346 urb->transfer_buffer,
347 urb->actual_length) < 0) {
348 BT_ERR("%s corrupted ACL packet", hdev->name);
353 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
356 usb_anchor_urb(urb, &data->bulk_anchor);
357 usb_mark_last_busy(data->udev);
359 err = usb_submit_urb(urb, GFP_ATOMIC);
361 /* -EPERM: urb is being killed;
362 * -ENODEV: device got disconnected */
363 if (err != -EPERM && err != -ENODEV)
364 BT_ERR("%s urb %p failed to resubmit (%d)",
365 hdev->name, urb, -err);
366 usb_unanchor_urb(urb);
370 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
372 struct btusb_data *data = hdev->driver_data;
376 int err, size = HCI_MAX_FRAME_SIZE;
378 BT_DBG("%s", hdev->name);
380 if (!data->bulk_rx_ep)
383 urb = usb_alloc_urb(0, mem_flags);
387 buf = kmalloc(size, mem_flags);
393 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
395 usb_fill_bulk_urb(urb, data->udev, pipe,
396 buf, size, btusb_bulk_complete, hdev);
398 urb->transfer_flags |= URB_FREE_BUFFER;
400 usb_mark_last_busy(data->udev);
401 usb_anchor_urb(urb, &data->bulk_anchor);
403 err = usb_submit_urb(urb, mem_flags);
405 if (err != -EPERM && err != -ENODEV)
406 BT_ERR("%s urb %p submission failed (%d)",
407 hdev->name, urb, -err);
408 usb_unanchor_urb(urb);
416 static void btusb_isoc_complete(struct urb *urb)
418 struct hci_dev *hdev = urb->context;
419 struct btusb_data *data = hdev->driver_data;
422 BT_DBG("%s urb %p status %d count %d", hdev->name,
423 urb, urb->status, urb->actual_length);
425 if (!test_bit(HCI_RUNNING, &hdev->flags))
428 if (urb->status == 0) {
429 for (i = 0; i < urb->number_of_packets; i++) {
430 unsigned int offset = urb->iso_frame_desc[i].offset;
431 unsigned int length = urb->iso_frame_desc[i].actual_length;
433 if (urb->iso_frame_desc[i].status)
436 hdev->stat.byte_rx += length;
438 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
439 urb->transfer_buffer + offset,
441 BT_ERR("%s corrupted SCO packet", hdev->name);
447 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
450 usb_anchor_urb(urb, &data->isoc_anchor);
452 err = usb_submit_urb(urb, GFP_ATOMIC);
454 /* -EPERM: urb is being killed;
455 * -ENODEV: device got disconnected */
456 if (err != -EPERM && err != -ENODEV)
457 BT_ERR("%s urb %p failed to resubmit (%d)",
458 hdev->name, urb, -err);
459 usb_unanchor_urb(urb);
463 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
467 BT_DBG("len %d mtu %d", len, mtu);
469 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
470 i++, offset += mtu, len -= mtu) {
471 urb->iso_frame_desc[i].offset = offset;
472 urb->iso_frame_desc[i].length = mtu;
475 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
476 urb->iso_frame_desc[i].offset = offset;
477 urb->iso_frame_desc[i].length = len;
481 urb->number_of_packets = i;
484 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
486 struct btusb_data *data = hdev->driver_data;
492 BT_DBG("%s", hdev->name);
494 if (!data->isoc_rx_ep)
497 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
501 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
502 BTUSB_MAX_ISOC_FRAMES;
504 buf = kmalloc(size, mem_flags);
510 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
512 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
513 hdev, data->isoc_rx_ep->bInterval);
515 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
517 __fill_isoc_descriptor(urb, size,
518 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
520 usb_anchor_urb(urb, &data->isoc_anchor);
522 err = usb_submit_urb(urb, mem_flags);
524 if (err != -EPERM && err != -ENODEV)
525 BT_ERR("%s urb %p submission failed (%d)",
526 hdev->name, urb, -err);
527 usb_unanchor_urb(urb);
535 static void btusb_tx_complete(struct urb *urb)
537 struct sk_buff *skb = urb->context;
538 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
539 struct btusb_data *data = hdev->driver_data;
541 BT_DBG("%s urb %p status %d count %d", hdev->name,
542 urb, urb->status, urb->actual_length);
544 if (!test_bit(HCI_RUNNING, &hdev->flags))
548 hdev->stat.byte_tx += urb->transfer_buffer_length;
553 spin_lock(&data->txlock);
554 data->tx_in_flight--;
555 spin_unlock(&data->txlock);
557 kfree(urb->setup_packet);
562 static void btusb_isoc_tx_complete(struct urb *urb)
564 struct sk_buff *skb = urb->context;
565 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
567 BT_DBG("%s urb %p status %d count %d", hdev->name,
568 urb, urb->status, urb->actual_length);
570 if (!test_bit(HCI_RUNNING, &hdev->flags))
574 hdev->stat.byte_tx += urb->transfer_buffer_length;
579 kfree(urb->setup_packet);
584 static int btusb_open(struct hci_dev *hdev)
586 struct btusb_data *data = hdev->driver_data;
589 BT_DBG("%s", hdev->name);
591 err = usb_autopm_get_interface(data->intf);
595 data->intf->needs_remote_wakeup = 1;
597 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
600 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
603 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
607 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
609 usb_kill_anchored_urbs(&data->intr_anchor);
613 set_bit(BTUSB_BULK_RUNNING, &data->flags);
614 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
617 usb_autopm_put_interface(data->intf);
621 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
622 clear_bit(HCI_RUNNING, &hdev->flags);
623 usb_autopm_put_interface(data->intf);
627 static void btusb_stop_traffic(struct btusb_data *data)
629 usb_kill_anchored_urbs(&data->intr_anchor);
630 usb_kill_anchored_urbs(&data->bulk_anchor);
631 usb_kill_anchored_urbs(&data->isoc_anchor);
634 static int btusb_close(struct hci_dev *hdev)
636 struct btusb_data *data = hdev->driver_data;
639 BT_DBG("%s", hdev->name);
641 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
644 cancel_work_sync(&data->work);
645 cancel_work_sync(&data->waker);
647 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
648 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
649 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
651 btusb_stop_traffic(data);
652 err = usb_autopm_get_interface(data->intf);
656 data->intf->needs_remote_wakeup = 0;
657 usb_autopm_put_interface(data->intf);
660 usb_scuttle_anchored_urbs(&data->deferred);
664 static int btusb_flush(struct hci_dev *hdev)
666 struct btusb_data *data = hdev->driver_data;
668 BT_DBG("%s", hdev->name);
670 usb_kill_anchored_urbs(&data->tx_anchor);
675 static int btusb_send_frame(struct sk_buff *skb)
677 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
678 struct btusb_data *data = hdev->driver_data;
679 struct usb_ctrlrequest *dr;
684 BT_DBG("%s", hdev->name);
686 if (!test_bit(HCI_RUNNING, &hdev->flags))
689 switch (bt_cb(skb)->pkt_type) {
690 case HCI_COMMAND_PKT:
691 urb = usb_alloc_urb(0, GFP_ATOMIC);
695 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
701 dr->bRequestType = data->cmdreq_type;
705 dr->wLength = __cpu_to_le16(skb->len);
707 pipe = usb_sndctrlpipe(data->udev, 0x00);
709 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
710 skb->data, skb->len, btusb_tx_complete, skb);
715 case HCI_ACLDATA_PKT:
716 if (!data->bulk_tx_ep)
719 urb = usb_alloc_urb(0, GFP_ATOMIC);
723 pipe = usb_sndbulkpipe(data->udev,
724 data->bulk_tx_ep->bEndpointAddress);
726 usb_fill_bulk_urb(urb, data->udev, pipe,
727 skb->data, skb->len, btusb_tx_complete, skb);
732 case HCI_SCODATA_PKT:
733 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
736 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
740 pipe = usb_sndisocpipe(data->udev,
741 data->isoc_tx_ep->bEndpointAddress);
743 usb_fill_int_urb(urb, data->udev, pipe,
744 skb->data, skb->len, btusb_isoc_tx_complete,
745 skb, data->isoc_tx_ep->bInterval);
747 urb->transfer_flags = URB_ISO_ASAP;
749 __fill_isoc_descriptor(urb, skb->len,
750 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
761 usb_anchor_urb(urb, &data->deferred);
762 schedule_work(&data->waker);
768 usb_anchor_urb(urb, &data->tx_anchor);
770 err = usb_submit_urb(urb, GFP_ATOMIC);
772 if (err != -EPERM && err != -ENODEV)
773 BT_ERR("%s urb %p submission failed (%d)",
774 hdev->name, urb, -err);
775 kfree(urb->setup_packet);
776 usb_unanchor_urb(urb);
778 usb_mark_last_busy(data->udev);
786 static void btusb_destruct(struct hci_dev *hdev)
788 struct btusb_data *data = hdev->driver_data;
790 BT_DBG("%s", hdev->name);
795 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
797 struct btusb_data *data = hdev->driver_data;
799 BT_DBG("%s evt %d", hdev->name, evt);
801 if (hdev->conn_hash.sco_num != data->sco_num) {
802 data->sco_num = hdev->conn_hash.sco_num;
803 schedule_work(&data->work);
807 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
809 struct btusb_data *data = hdev->driver_data;
810 struct usb_interface *intf = data->isoc;
811 struct usb_endpoint_descriptor *ep_desc;
817 err = usb_set_interface(data->udev, 1, altsetting);
819 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
823 data->isoc_altsetting = altsetting;
825 data->isoc_tx_ep = NULL;
826 data->isoc_rx_ep = NULL;
828 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
829 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
831 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
832 data->isoc_tx_ep = ep_desc;
836 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
837 data->isoc_rx_ep = ep_desc;
842 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
843 BT_ERR("%s invalid SCO descriptors", hdev->name);
850 static void btusb_work(struct work_struct *work)
852 struct btusb_data *data = container_of(work, struct btusb_data, work);
853 struct hci_dev *hdev = data->hdev;
856 if (hdev->conn_hash.sco_num > 0) {
857 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
858 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
860 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
861 usb_kill_anchored_urbs(&data->isoc_anchor);
865 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
867 if (data->isoc_altsetting != 2) {
868 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
869 usb_kill_anchored_urbs(&data->isoc_anchor);
871 if (__set_isoc_interface(hdev, 2) < 0)
875 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
876 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
877 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
879 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
882 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
883 usb_kill_anchored_urbs(&data->isoc_anchor);
885 __set_isoc_interface(hdev, 0);
886 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
887 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
891 static void btusb_waker(struct work_struct *work)
893 struct btusb_data *data = container_of(work, struct btusb_data, waker);
896 err = usb_autopm_get_interface(data->intf);
900 usb_autopm_put_interface(data->intf);
903 static int btusb_probe(struct usb_interface *intf,
904 const struct usb_device_id *id)
906 struct usb_endpoint_descriptor *ep_desc;
907 struct btusb_data *data;
908 struct hci_dev *hdev;
911 BT_DBG("intf %p id %p", intf, id);
913 /* interface numbers are hardcoded in the spec */
914 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
917 if (!id->driver_info) {
918 const struct usb_device_id *match;
919 match = usb_match_id(intf, blacklist_table);
924 if (id->driver_info == BTUSB_IGNORE)
927 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
930 if (ignore_csr && id->driver_info & BTUSB_CSR)
933 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
936 if (id->driver_info & BTUSB_ATH3012) {
937 struct usb_device *udev = interface_to_usbdev(intf);
939 /* Old firmware would otherwise let ath3k driver load
940 * patch and sysconfig files */
941 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
945 data = kzalloc(sizeof(*data), GFP_KERNEL);
949 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
950 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
952 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
953 data->intr_ep = ep_desc;
957 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
958 data->bulk_tx_ep = ep_desc;
962 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
963 data->bulk_rx_ep = ep_desc;
968 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
973 data->cmdreq_type = USB_TYPE_CLASS;
975 data->udev = interface_to_usbdev(intf);
978 spin_lock_init(&data->lock);
980 INIT_WORK(&data->work, btusb_work);
981 INIT_WORK(&data->waker, btusb_waker);
982 spin_lock_init(&data->txlock);
984 init_usb_anchor(&data->tx_anchor);
985 init_usb_anchor(&data->intr_anchor);
986 init_usb_anchor(&data->bulk_anchor);
987 init_usb_anchor(&data->isoc_anchor);
988 init_usb_anchor(&data->deferred);
990 hdev = hci_alloc_dev();
997 hdev->driver_data = data;
1001 SET_HCIDEV_DEV(hdev, &intf->dev);
1003 hdev->open = btusb_open;
1004 hdev->close = btusb_close;
1005 hdev->flush = btusb_flush;
1006 hdev->send = btusb_send_frame;
1007 hdev->destruct = btusb_destruct;
1008 hdev->notify = btusb_notify;
1010 hdev->owner = THIS_MODULE;
1012 /* Interface numbers are hardcoded in the specification */
1013 data->isoc = usb_ifnum_to_if(data->udev, 1);
1016 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1018 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1019 if (!disable_scofix)
1020 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1023 if (id->driver_info & BTUSB_BROKEN_ISOC)
1026 if (id->driver_info & BTUSB_DIGIANSWER) {
1027 data->cmdreq_type = USB_TYPE_VENDOR;
1028 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1031 if (id->driver_info & BTUSB_CSR) {
1032 struct usb_device *udev = data->udev;
1034 /* Old firmware would otherwise execute USB reset */
1035 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1036 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1039 if (id->driver_info & BTUSB_SNIFFER) {
1040 struct usb_device *udev = data->udev;
1042 /* New sniffer firmware has crippled HCI interface */
1043 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1044 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1049 if (id->driver_info & BTUSB_BCM92035) {
1050 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1051 struct sk_buff *skb;
1053 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1055 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1056 skb_queue_tail(&hdev->driver_init, skb);
1061 err = usb_driver_claim_interface(&btusb_driver,
1070 err = hci_register_dev(hdev);
1077 usb_set_intfdata(intf, data);
1082 static void btusb_disconnect(struct usb_interface *intf)
1084 struct btusb_data *data = usb_get_intfdata(intf);
1085 struct hci_dev *hdev;
1087 BT_DBG("intf %p", intf);
1094 __hci_dev_hold(hdev);
1096 usb_set_intfdata(data->intf, NULL);
1099 usb_set_intfdata(data->isoc, NULL);
1101 hci_unregister_dev(hdev);
1103 if (intf == data->isoc)
1104 usb_driver_release_interface(&btusb_driver, data->intf);
1105 else if (data->isoc)
1106 usb_driver_release_interface(&btusb_driver, data->isoc);
1108 __hci_dev_put(hdev);
1114 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1116 struct btusb_data *data = usb_get_intfdata(intf);
1118 BT_DBG("intf %p", intf);
1120 if (data->suspend_count++)
1123 spin_lock_irq(&data->txlock);
1124 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1125 set_bit(BTUSB_SUSPENDING, &data->flags);
1126 spin_unlock_irq(&data->txlock);
1128 spin_unlock_irq(&data->txlock);
1129 data->suspend_count--;
1133 cancel_work_sync(&data->work);
1135 btusb_stop_traffic(data);
1136 usb_kill_anchored_urbs(&data->tx_anchor);
1141 static void play_deferred(struct btusb_data *data)
1146 while ((urb = usb_get_from_anchor(&data->deferred))) {
1147 err = usb_submit_urb(urb, GFP_ATOMIC);
1151 data->tx_in_flight++;
1153 usb_scuttle_anchored_urbs(&data->deferred);
1156 static int btusb_resume(struct usb_interface *intf)
1158 struct btusb_data *data = usb_get_intfdata(intf);
1159 struct hci_dev *hdev = data->hdev;
1162 BT_DBG("intf %p", intf);
1164 if (--data->suspend_count)
1167 if (!test_bit(HCI_RUNNING, &hdev->flags))
1170 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1171 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1173 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1178 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1179 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1181 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1185 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1188 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1189 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1190 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1192 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1195 spin_lock_irq(&data->txlock);
1196 play_deferred(data);
1197 clear_bit(BTUSB_SUSPENDING, &data->flags);
1198 spin_unlock_irq(&data->txlock);
1199 schedule_work(&data->work);
1204 usb_scuttle_anchored_urbs(&data->deferred);
1206 spin_lock_irq(&data->txlock);
1207 clear_bit(BTUSB_SUSPENDING, &data->flags);
1208 spin_unlock_irq(&data->txlock);
1214 static struct usb_driver btusb_driver = {
1216 .probe = btusb_probe,
1217 .disconnect = btusb_disconnect,
1219 .suspend = btusb_suspend,
1220 .resume = btusb_resume,
1222 .id_table = btusb_table,
1223 .supports_autosuspend = 1,
1226 module_usb_driver(btusb_driver);
1228 module_param(ignore_dga, bool, 0644);
1229 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1231 module_param(ignore_csr, bool, 0644);
1232 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1234 module_param(ignore_sniffer, bool, 0644);
1235 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1237 module_param(disable_scofix, bool, 0644);
1238 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1240 module_param(force_scofix, bool, 0644);
1241 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1243 module_param(reset, bool, 0644);
1244 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1246 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1247 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1248 MODULE_VERSION(VERSION);
1249 MODULE_LICENSE("GPL");