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 /* Apple-specific (Broadcom) devices */
64 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
66 /* Broadcom SoftSailing reporting vendor specific */
67 { USB_DEVICE(0x0a5c, 0x21e1) },
69 /* Apple MacBookPro 7,1 */
70 { USB_DEVICE(0x05ac, 0x8213) },
73 { USB_DEVICE(0x05ac, 0x8215) },
75 /* Apple MacBookPro6,2 */
76 { USB_DEVICE(0x05ac, 0x8218) },
78 /* Apple MacBookAir3,1, MacBookAir3,2 */
79 { USB_DEVICE(0x05ac, 0x821b) },
81 /* Apple MacBookAir4,1 */
82 { USB_DEVICE(0x05ac, 0x821f) },
84 /* Apple MacBookPro8,2 */
85 { USB_DEVICE(0x05ac, 0x821a) },
87 /* Apple MacMini5,1 */
88 { USB_DEVICE(0x05ac, 0x8281) },
90 /* AVM BlueFRITZ! USB v2.0 */
91 { USB_DEVICE(0x057c, 0x3800) },
93 /* Bluetooth Ultraport Module from IBM */
94 { USB_DEVICE(0x04bf, 0x030a) },
96 /* ALPS Modules with non-standard id */
97 { USB_DEVICE(0x044e, 0x3001) },
98 { USB_DEVICE(0x044e, 0x3002) },
100 /* Ericsson with non-standard id */
101 { USB_DEVICE(0x0bdb, 0x1002) },
103 /* Canyon CN-BTU1 with HID interfaces */
104 { USB_DEVICE(0x0c10, 0x0000) },
106 /* Broadcom BCM20702A0 */
107 { USB_DEVICE(0x0b05, 0x17b5) },
108 { USB_DEVICE(0x04ca, 0x2003) },
109 { USB_DEVICE(0x0489, 0xe042) },
110 { USB_DEVICE(0x413c, 0x8197) },
112 /* Foxconn - Hon Hai */
113 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
115 /*Broadcom devices with vendor specific id */
116 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
118 { } /* Terminating entry */
121 MODULE_DEVICE_TABLE(usb, btusb_table);
123 static struct usb_device_id blacklist_table[] = {
124 /* CSR BlueCore devices */
125 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
127 /* Broadcom BCM2033 without firmware */
128 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
130 /* Atheros 3011 with sflash firmware */
131 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
132 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
133 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
134 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
135 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
136 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
138 /* Atheros AR9285 Malbec with sflash firmware */
139 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
141 /* Atheros 3012 with sflash firmware */
142 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
154 /* Atheros AR5BBU12 with sflash firmware */
155 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
157 /* Atheros AR5BBU12 with sflash firmware */
158 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
161 /* Broadcom BCM2035 */
162 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
163 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
164 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
166 /* Broadcom BCM2045 */
167 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
168 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
170 /* IBM/Lenovo ThinkPad with Broadcom chip */
171 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
172 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
174 /* HP laptop with Broadcom chip */
175 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
177 /* Dell laptop with Broadcom chip */
178 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
180 /* Dell Wireless 370 and 410 devices */
181 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
182 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
184 /* Belkin F8T012 and F8T013 devices */
185 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
186 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
188 /* Asus WL-BTD202 device */
189 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
191 /* Kensington Bluetooth USB adapter */
192 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
194 /* RTX Telecom based adapters with buggy SCO support */
195 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
196 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
198 /* CONWISE Technology based adapters with buggy SCO support */
199 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
201 /* Digianswer devices */
202 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
203 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
205 /* CSR BlueCore Bluetooth Sniffer */
206 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
208 /* Frontline ComProbe Bluetooth Sniffer */
209 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
211 { } /* Terminating entry */
214 #define BTUSB_MAX_ISOC_FRAMES 10
216 #define BTUSB_INTR_RUNNING 0
217 #define BTUSB_BULK_RUNNING 1
218 #define BTUSB_ISOC_RUNNING 2
219 #define BTUSB_SUSPENDING 3
220 #define BTUSB_DID_ISO_RESUME 4
223 struct hci_dev *hdev;
224 struct usb_device *udev;
225 struct usb_interface *intf;
226 struct usb_interface *isoc;
232 struct work_struct work;
233 struct work_struct waker;
235 struct usb_anchor tx_anchor;
236 struct usb_anchor intr_anchor;
237 struct usb_anchor bulk_anchor;
238 struct usb_anchor isoc_anchor;
239 struct usb_anchor deferred;
243 struct usb_endpoint_descriptor *intr_ep;
244 struct usb_endpoint_descriptor *bulk_tx_ep;
245 struct usb_endpoint_descriptor *bulk_rx_ep;
246 struct usb_endpoint_descriptor *isoc_tx_ep;
247 struct usb_endpoint_descriptor *isoc_rx_ep;
251 unsigned int sco_num;
256 static int inc_tx(struct btusb_data *data)
261 spin_lock_irqsave(&data->txlock, flags);
262 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
264 data->tx_in_flight++;
265 spin_unlock_irqrestore(&data->txlock, flags);
270 static void btusb_intr_complete(struct urb *urb)
272 struct hci_dev *hdev = urb->context;
273 struct btusb_data *data = hdev->driver_data;
276 BT_DBG("%s urb %p status %d count %d", hdev->name,
277 urb, urb->status, urb->actual_length);
279 if (!test_bit(HCI_RUNNING, &hdev->flags))
282 if (urb->status == 0) {
283 hdev->stat.byte_rx += urb->actual_length;
285 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
286 urb->transfer_buffer,
287 urb->actual_length) < 0) {
288 BT_ERR("%s corrupted event packet", hdev->name);
293 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
296 usb_mark_last_busy(data->udev);
297 usb_anchor_urb(urb, &data->intr_anchor);
299 err = usb_submit_urb(urb, GFP_ATOMIC);
301 /* -EPERM: urb is being killed;
302 * -ENODEV: device got disconnected */
303 if (err != -EPERM && err != -ENODEV)
304 BT_ERR("%s urb %p failed to resubmit (%d)",
305 hdev->name, urb, -err);
306 usb_unanchor_urb(urb);
310 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
312 struct btusb_data *data = hdev->driver_data;
318 BT_DBG("%s", hdev->name);
323 urb = usb_alloc_urb(0, mem_flags);
327 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
329 buf = kmalloc(size, mem_flags);
335 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
337 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
338 btusb_intr_complete, hdev,
339 data->intr_ep->bInterval);
341 urb->transfer_flags |= URB_FREE_BUFFER;
343 usb_anchor_urb(urb, &data->intr_anchor);
345 err = usb_submit_urb(urb, mem_flags);
347 BT_ERR("%s urb %p submission failed (%d)",
348 hdev->name, urb, -err);
349 usb_unanchor_urb(urb);
357 static void btusb_bulk_complete(struct urb *urb)
359 struct hci_dev *hdev = urb->context;
360 struct btusb_data *data = hdev->driver_data;
363 BT_DBG("%s urb %p status %d count %d", hdev->name,
364 urb, urb->status, urb->actual_length);
366 if (!test_bit(HCI_RUNNING, &hdev->flags))
369 if (urb->status == 0) {
370 hdev->stat.byte_rx += urb->actual_length;
372 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
373 urb->transfer_buffer,
374 urb->actual_length) < 0) {
375 BT_ERR("%s corrupted ACL packet", hdev->name);
380 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
383 usb_anchor_urb(urb, &data->bulk_anchor);
384 usb_mark_last_busy(data->udev);
386 err = usb_submit_urb(urb, GFP_ATOMIC);
388 /* -EPERM: urb is being killed;
389 * -ENODEV: device got disconnected */
390 if (err != -EPERM && err != -ENODEV)
391 BT_ERR("%s urb %p failed to resubmit (%d)",
392 hdev->name, urb, -err);
393 usb_unanchor_urb(urb);
397 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
399 struct btusb_data *data = hdev->driver_data;
403 int err, size = HCI_MAX_FRAME_SIZE;
405 BT_DBG("%s", hdev->name);
407 if (!data->bulk_rx_ep)
410 urb = usb_alloc_urb(0, mem_flags);
414 buf = kmalloc(size, mem_flags);
420 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
422 usb_fill_bulk_urb(urb, data->udev, pipe,
423 buf, size, btusb_bulk_complete, hdev);
425 urb->transfer_flags |= URB_FREE_BUFFER;
427 usb_mark_last_busy(data->udev);
428 usb_anchor_urb(urb, &data->bulk_anchor);
430 err = usb_submit_urb(urb, mem_flags);
432 BT_ERR("%s urb %p submission failed (%d)",
433 hdev->name, urb, -err);
434 usb_unanchor_urb(urb);
442 static void btusb_isoc_complete(struct urb *urb)
444 struct hci_dev *hdev = urb->context;
445 struct btusb_data *data = hdev->driver_data;
448 BT_DBG("%s urb %p status %d count %d", hdev->name,
449 urb, urb->status, urb->actual_length);
451 if (!test_bit(HCI_RUNNING, &hdev->flags))
454 if (urb->status == 0) {
455 for (i = 0; i < urb->number_of_packets; i++) {
456 unsigned int offset = urb->iso_frame_desc[i].offset;
457 unsigned int length = urb->iso_frame_desc[i].actual_length;
459 if (urb->iso_frame_desc[i].status)
462 hdev->stat.byte_rx += length;
464 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
465 urb->transfer_buffer + offset,
467 BT_ERR("%s corrupted SCO packet", hdev->name);
473 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
476 usb_anchor_urb(urb, &data->isoc_anchor);
478 err = usb_submit_urb(urb, GFP_ATOMIC);
480 /* -EPERM: urb is being killed;
481 * -ENODEV: device got disconnected */
482 if (err != -EPERM && err != -ENODEV)
483 BT_ERR("%s urb %p failed to resubmit (%d)",
484 hdev->name, urb, -err);
485 usb_unanchor_urb(urb);
489 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
493 BT_DBG("len %d mtu %d", len, mtu);
495 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
496 i++, offset += mtu, len -= mtu) {
497 urb->iso_frame_desc[i].offset = offset;
498 urb->iso_frame_desc[i].length = mtu;
501 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
502 urb->iso_frame_desc[i].offset = offset;
503 urb->iso_frame_desc[i].length = len;
507 urb->number_of_packets = i;
510 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
512 struct btusb_data *data = hdev->driver_data;
518 BT_DBG("%s", hdev->name);
520 if (!data->isoc_rx_ep)
523 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
527 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
528 BTUSB_MAX_ISOC_FRAMES;
530 buf = kmalloc(size, mem_flags);
536 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
538 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
539 hdev, data->isoc_rx_ep->bInterval);
541 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
543 __fill_isoc_descriptor(urb, size,
544 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
546 usb_anchor_urb(urb, &data->isoc_anchor);
548 err = usb_submit_urb(urb, mem_flags);
550 BT_ERR("%s urb %p submission failed (%d)",
551 hdev->name, urb, -err);
552 usb_unanchor_urb(urb);
560 static void btusb_tx_complete(struct urb *urb)
562 struct sk_buff *skb = urb->context;
563 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
564 struct btusb_data *data = hdev->driver_data;
566 BT_DBG("%s urb %p status %d count %d", hdev->name,
567 urb, urb->status, urb->actual_length);
569 if (!test_bit(HCI_RUNNING, &hdev->flags))
573 hdev->stat.byte_tx += urb->transfer_buffer_length;
578 spin_lock(&data->txlock);
579 data->tx_in_flight--;
580 spin_unlock(&data->txlock);
582 kfree(urb->setup_packet);
587 static void btusb_isoc_tx_complete(struct urb *urb)
589 struct sk_buff *skb = urb->context;
590 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
592 BT_DBG("%s urb %p status %d count %d", hdev->name,
593 urb, urb->status, urb->actual_length);
595 if (!test_bit(HCI_RUNNING, &hdev->flags))
599 hdev->stat.byte_tx += urb->transfer_buffer_length;
604 kfree(urb->setup_packet);
609 static int btusb_open(struct hci_dev *hdev)
611 struct btusb_data *data = hdev->driver_data;
614 BT_DBG("%s", hdev->name);
616 err = usb_autopm_get_interface(data->intf);
620 data->intf->needs_remote_wakeup = 1;
622 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
625 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
628 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
632 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
634 usb_kill_anchored_urbs(&data->intr_anchor);
638 set_bit(BTUSB_BULK_RUNNING, &data->flags);
639 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
642 usb_autopm_put_interface(data->intf);
646 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
647 clear_bit(HCI_RUNNING, &hdev->flags);
648 usb_autopm_put_interface(data->intf);
652 static void btusb_stop_traffic(struct btusb_data *data)
654 usb_kill_anchored_urbs(&data->intr_anchor);
655 usb_kill_anchored_urbs(&data->bulk_anchor);
656 usb_kill_anchored_urbs(&data->isoc_anchor);
659 static int btusb_close(struct hci_dev *hdev)
661 struct btusb_data *data = hdev->driver_data;
664 BT_DBG("%s", hdev->name);
666 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
669 cancel_work_sync(&data->work);
670 cancel_work_sync(&data->waker);
672 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
673 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
674 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
676 btusb_stop_traffic(data);
677 err = usb_autopm_get_interface(data->intf);
681 data->intf->needs_remote_wakeup = 0;
682 usb_autopm_put_interface(data->intf);
685 usb_scuttle_anchored_urbs(&data->deferred);
689 static int btusb_flush(struct hci_dev *hdev)
691 struct btusb_data *data = hdev->driver_data;
693 BT_DBG("%s", hdev->name);
695 usb_kill_anchored_urbs(&data->tx_anchor);
700 static int btusb_send_frame(struct sk_buff *skb)
702 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
703 struct btusb_data *data = hdev->driver_data;
704 struct usb_ctrlrequest *dr;
709 BT_DBG("%s", hdev->name);
711 if (!test_bit(HCI_RUNNING, &hdev->flags))
714 switch (bt_cb(skb)->pkt_type) {
715 case HCI_COMMAND_PKT:
716 urb = usb_alloc_urb(0, GFP_ATOMIC);
720 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
726 dr->bRequestType = data->cmdreq_type;
730 dr->wLength = __cpu_to_le16(skb->len);
732 pipe = usb_sndctrlpipe(data->udev, 0x00);
734 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
735 skb->data, skb->len, btusb_tx_complete, skb);
740 case HCI_ACLDATA_PKT:
741 if (!data->bulk_tx_ep)
744 urb = usb_alloc_urb(0, GFP_ATOMIC);
748 pipe = usb_sndbulkpipe(data->udev,
749 data->bulk_tx_ep->bEndpointAddress);
751 usb_fill_bulk_urb(urb, data->udev, pipe,
752 skb->data, skb->len, btusb_tx_complete, skb);
757 case HCI_SCODATA_PKT:
758 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
761 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
765 pipe = usb_sndisocpipe(data->udev,
766 data->isoc_tx_ep->bEndpointAddress);
768 usb_fill_int_urb(urb, data->udev, pipe,
769 skb->data, skb->len, btusb_isoc_tx_complete,
770 skb, data->isoc_tx_ep->bInterval);
772 urb->transfer_flags = URB_ISO_ASAP;
774 __fill_isoc_descriptor(urb, skb->len,
775 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
786 usb_anchor_urb(urb, &data->deferred);
787 schedule_work(&data->waker);
793 usb_anchor_urb(urb, &data->tx_anchor);
795 err = usb_submit_urb(urb, GFP_ATOMIC);
797 BT_ERR("%s urb %p submission failed", hdev->name, urb);
798 kfree(urb->setup_packet);
799 usb_unanchor_urb(urb);
801 usb_mark_last_busy(data->udev);
809 static void btusb_destruct(struct hci_dev *hdev)
811 struct btusb_data *data = hdev->driver_data;
813 BT_DBG("%s", hdev->name);
818 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
820 struct btusb_data *data = hdev->driver_data;
822 BT_DBG("%s evt %d", hdev->name, evt);
824 if (hdev->conn_hash.sco_num != data->sco_num) {
825 data->sco_num = hdev->conn_hash.sco_num;
826 schedule_work(&data->work);
830 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
832 struct btusb_data *data = hdev->driver_data;
833 struct usb_interface *intf = data->isoc;
834 struct usb_endpoint_descriptor *ep_desc;
840 err = usb_set_interface(data->udev, 1, altsetting);
842 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
846 data->isoc_altsetting = altsetting;
848 data->isoc_tx_ep = NULL;
849 data->isoc_rx_ep = NULL;
851 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
852 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
854 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
855 data->isoc_tx_ep = ep_desc;
859 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
860 data->isoc_rx_ep = ep_desc;
865 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
866 BT_ERR("%s invalid SCO descriptors", hdev->name);
873 static void btusb_work(struct work_struct *work)
875 struct btusb_data *data = container_of(work, struct btusb_data, work);
876 struct hci_dev *hdev = data->hdev;
879 if (hdev->conn_hash.sco_num > 0) {
880 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
881 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
883 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
884 usb_kill_anchored_urbs(&data->isoc_anchor);
888 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
890 if (data->isoc_altsetting != 2) {
891 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
892 usb_kill_anchored_urbs(&data->isoc_anchor);
894 if (__set_isoc_interface(hdev, 2) < 0)
898 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
899 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
900 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
902 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
905 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
906 usb_kill_anchored_urbs(&data->isoc_anchor);
908 __set_isoc_interface(hdev, 0);
909 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
910 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
914 static void btusb_waker(struct work_struct *work)
916 struct btusb_data *data = container_of(work, struct btusb_data, waker);
919 err = usb_autopm_get_interface(data->intf);
923 usb_autopm_put_interface(data->intf);
926 static int btusb_probe(struct usb_interface *intf,
927 const struct usb_device_id *id)
929 struct usb_endpoint_descriptor *ep_desc;
930 struct btusb_data *data;
931 struct hci_dev *hdev;
934 BT_DBG("intf %p id %p", intf, id);
936 /* interface numbers are hardcoded in the spec */
937 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
940 if (!id->driver_info) {
941 const struct usb_device_id *match;
942 match = usb_match_id(intf, blacklist_table);
947 if (id->driver_info == BTUSB_IGNORE)
950 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
953 if (ignore_csr && id->driver_info & BTUSB_CSR)
956 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
959 if (id->driver_info & BTUSB_ATH3012) {
960 struct usb_device *udev = interface_to_usbdev(intf);
962 /* Old firmware would otherwise let ath3k driver load
963 * patch and sysconfig files */
964 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
968 data = kzalloc(sizeof(*data), GFP_KERNEL);
972 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
973 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
975 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
976 data->intr_ep = ep_desc;
980 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
981 data->bulk_tx_ep = ep_desc;
985 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
986 data->bulk_rx_ep = ep_desc;
991 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
996 data->cmdreq_type = USB_TYPE_CLASS;
998 data->udev = interface_to_usbdev(intf);
1001 spin_lock_init(&data->lock);
1003 INIT_WORK(&data->work, btusb_work);
1004 INIT_WORK(&data->waker, btusb_waker);
1005 spin_lock_init(&data->txlock);
1007 init_usb_anchor(&data->tx_anchor);
1008 init_usb_anchor(&data->intr_anchor);
1009 init_usb_anchor(&data->bulk_anchor);
1010 init_usb_anchor(&data->isoc_anchor);
1011 init_usb_anchor(&data->deferred);
1013 hdev = hci_alloc_dev();
1019 hdev->bus = HCI_USB;
1020 hdev->driver_data = data;
1024 SET_HCIDEV_DEV(hdev, &intf->dev);
1026 hdev->open = btusb_open;
1027 hdev->close = btusb_close;
1028 hdev->flush = btusb_flush;
1029 hdev->send = btusb_send_frame;
1030 hdev->destruct = btusb_destruct;
1031 hdev->notify = btusb_notify;
1033 hdev->owner = THIS_MODULE;
1035 /* Interface numbers are hardcoded in the specification */
1036 data->isoc = usb_ifnum_to_if(data->udev, 1);
1039 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1041 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1042 if (!disable_scofix)
1043 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1046 if (id->driver_info & BTUSB_BROKEN_ISOC)
1049 if (id->driver_info & BTUSB_DIGIANSWER) {
1050 data->cmdreq_type = USB_TYPE_VENDOR;
1051 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1054 if (id->driver_info & BTUSB_CSR) {
1055 struct usb_device *udev = data->udev;
1057 /* Old firmware would otherwise execute USB reset */
1058 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1059 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1062 if (id->driver_info & BTUSB_SNIFFER) {
1063 struct usb_device *udev = data->udev;
1065 /* New sniffer firmware has crippled HCI interface */
1066 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1067 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1072 if (id->driver_info & BTUSB_BCM92035) {
1073 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1074 struct sk_buff *skb;
1076 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1078 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1079 skb_queue_tail(&hdev->driver_init, skb);
1084 err = usb_driver_claim_interface(&btusb_driver,
1093 err = hci_register_dev(hdev);
1100 usb_set_intfdata(intf, data);
1105 static void btusb_disconnect(struct usb_interface *intf)
1107 struct btusb_data *data = usb_get_intfdata(intf);
1108 struct hci_dev *hdev;
1110 BT_DBG("intf %p", intf);
1117 __hci_dev_hold(hdev);
1119 usb_set_intfdata(data->intf, NULL);
1122 usb_set_intfdata(data->isoc, NULL);
1124 hci_unregister_dev(hdev);
1126 if (intf == data->isoc)
1127 usb_driver_release_interface(&btusb_driver, data->intf);
1128 else if (data->isoc)
1129 usb_driver_release_interface(&btusb_driver, data->isoc);
1131 __hci_dev_put(hdev);
1137 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1139 struct btusb_data *data = usb_get_intfdata(intf);
1141 BT_DBG("intf %p", intf);
1143 if (data->suspend_count++)
1146 spin_lock_irq(&data->txlock);
1147 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1148 set_bit(BTUSB_SUSPENDING, &data->flags);
1149 spin_unlock_irq(&data->txlock);
1151 spin_unlock_irq(&data->txlock);
1152 data->suspend_count--;
1156 cancel_work_sync(&data->work);
1158 btusb_stop_traffic(data);
1159 usb_kill_anchored_urbs(&data->tx_anchor);
1164 static void play_deferred(struct btusb_data *data)
1169 while ((urb = usb_get_from_anchor(&data->deferred))) {
1170 err = usb_submit_urb(urb, GFP_ATOMIC);
1174 data->tx_in_flight++;
1176 usb_scuttle_anchored_urbs(&data->deferred);
1179 static int btusb_resume(struct usb_interface *intf)
1181 struct btusb_data *data = usb_get_intfdata(intf);
1182 struct hci_dev *hdev = data->hdev;
1185 BT_DBG("intf %p", intf);
1187 if (--data->suspend_count)
1190 if (!test_bit(HCI_RUNNING, &hdev->flags))
1193 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1194 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1196 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1201 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1202 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1204 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1208 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1211 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1212 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1213 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1215 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1218 spin_lock_irq(&data->txlock);
1219 play_deferred(data);
1220 clear_bit(BTUSB_SUSPENDING, &data->flags);
1221 spin_unlock_irq(&data->txlock);
1222 schedule_work(&data->work);
1227 usb_scuttle_anchored_urbs(&data->deferred);
1229 spin_lock_irq(&data->txlock);
1230 clear_bit(BTUSB_SUSPENDING, &data->flags);
1231 spin_unlock_irq(&data->txlock);
1237 static struct usb_driver btusb_driver = {
1239 .probe = btusb_probe,
1240 .disconnect = btusb_disconnect,
1242 .suspend = btusb_suspend,
1243 .resume = btusb_resume,
1245 .id_table = btusb_table,
1246 .supports_autosuspend = 1,
1249 static int __init btusb_init(void)
1251 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1253 return usb_register(&btusb_driver);
1256 static void __exit btusb_exit(void)
1258 usb_deregister(&btusb_driver);
1261 module_init(btusb_init);
1262 module_exit(btusb_exit);
1264 module_param(ignore_dga, bool, 0644);
1265 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1267 module_param(ignore_csr, bool, 0644);
1268 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1270 module_param(ignore_sniffer, bool, 0644);
1271 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1273 module_param(disable_scofix, bool, 0644);
1274 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1276 module_param(force_scofix, bool, 0644);
1277 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1279 module_param(reset, bool, 0644);
1280 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1282 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1283 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1284 MODULE_VERSION(VERSION);
1285 MODULE_LICENSE("GPL");