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 MacBookPro 7,1 */
64 { USB_DEVICE(0x05ac, 0x8213) },
67 { USB_DEVICE(0x05ac, 0x8215) },
69 /* Apple MacBookPro6,2 */
70 { USB_DEVICE(0x05ac, 0x8218) },
72 /* Apple MacBookAir3,1, MacBookAir3,2 */
73 { USB_DEVICE(0x05ac, 0x821b) },
75 /* Apple MacBookAir4,1 */
76 { USB_DEVICE(0x05ac, 0x821f) },
78 /* Apple MacBookPro8,2 */
79 { USB_DEVICE(0x05ac, 0x821a) },
81 /* AVM BlueFRITZ! USB v2.0 */
82 { USB_DEVICE(0x057c, 0x3800) },
84 /* Bluetooth Ultraport Module from IBM */
85 { USB_DEVICE(0x04bf, 0x030a) },
87 /* ALPS Modules with non-standard id */
88 { USB_DEVICE(0x044e, 0x3001) },
89 { USB_DEVICE(0x044e, 0x3002) },
91 /* Ericsson with non-standard id */
92 { USB_DEVICE(0x0bdb, 0x1002) },
94 /* Canyon CN-BTU1 with HID interfaces */
95 { USB_DEVICE(0x0c10, 0x0000) },
97 { } /* Terminating entry */
100 MODULE_DEVICE_TABLE(usb, btusb_table);
102 static struct usb_device_id blacklist_table[] = {
103 /* CSR BlueCore devices */
104 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
106 /* Broadcom BCM2033 without firmware */
107 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
109 /* Atheros 3011 with sflash firmware */
110 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
111 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
112 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
114 /* Atheros AR9285 Malbec with sflash firmware */
115 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
117 /* Atheros 3012 with sflash firmware */
118 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
120 /* Atheros AR5BBU12 with sflash firmware */
121 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
123 /* Broadcom BCM2035 */
124 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
125 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
126 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
128 /* Broadcom BCM2045 */
129 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
130 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
132 /* IBM/Lenovo ThinkPad with Broadcom chip */
133 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
134 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
136 /* HP laptop with Broadcom chip */
137 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
139 /* Dell laptop with Broadcom chip */
140 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
142 /* Dell Wireless 370 and 410 devices */
143 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
144 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
146 /* Belkin F8T012 and F8T013 devices */
147 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
148 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
150 /* Asus WL-BTD202 device */
151 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
153 /* Kensington Bluetooth USB adapter */
154 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
156 /* RTX Telecom based adapters with buggy SCO support */
157 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
158 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
160 /* CONWISE Technology based adapters with buggy SCO support */
161 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
163 /* Digianswer devices */
164 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
165 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
167 /* CSR BlueCore Bluetooth Sniffer */
168 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
170 /* Frontline ComProbe Bluetooth Sniffer */
171 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
173 { } /* Terminating entry */
176 #define BTUSB_MAX_ISOC_FRAMES 10
178 #define BTUSB_INTR_RUNNING 0
179 #define BTUSB_BULK_RUNNING 1
180 #define BTUSB_ISOC_RUNNING 2
181 #define BTUSB_SUSPENDING 3
182 #define BTUSB_DID_ISO_RESUME 4
185 struct hci_dev *hdev;
186 struct usb_device *udev;
187 struct usb_interface *intf;
188 struct usb_interface *isoc;
194 struct work_struct work;
195 struct work_struct waker;
197 struct usb_anchor tx_anchor;
198 struct usb_anchor intr_anchor;
199 struct usb_anchor bulk_anchor;
200 struct usb_anchor isoc_anchor;
201 struct usb_anchor deferred;
205 struct usb_endpoint_descriptor *intr_ep;
206 struct usb_endpoint_descriptor *bulk_tx_ep;
207 struct usb_endpoint_descriptor *bulk_rx_ep;
208 struct usb_endpoint_descriptor *isoc_tx_ep;
209 struct usb_endpoint_descriptor *isoc_rx_ep;
213 unsigned int sco_num;
218 static int inc_tx(struct btusb_data *data)
223 spin_lock_irqsave(&data->txlock, flags);
224 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
226 data->tx_in_flight++;
227 spin_unlock_irqrestore(&data->txlock, flags);
232 static void btusb_intr_complete(struct urb *urb)
234 struct hci_dev *hdev = urb->context;
235 struct btusb_data *data = hdev->driver_data;
238 BT_DBG("%s urb %p status %d count %d", hdev->name,
239 urb, urb->status, urb->actual_length);
241 if (!test_bit(HCI_RUNNING, &hdev->flags))
244 if (urb->status == 0) {
245 hdev->stat.byte_rx += urb->actual_length;
247 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
248 urb->transfer_buffer,
249 urb->actual_length) < 0) {
250 BT_ERR("%s corrupted event packet", hdev->name);
255 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
258 usb_mark_last_busy(data->udev);
259 usb_anchor_urb(urb, &data->intr_anchor);
261 err = usb_submit_urb(urb, GFP_ATOMIC);
264 BT_ERR("%s urb %p failed to resubmit (%d)",
265 hdev->name, urb, -err);
266 usb_unanchor_urb(urb);
270 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
272 struct btusb_data *data = hdev->driver_data;
278 BT_DBG("%s", hdev->name);
283 urb = usb_alloc_urb(0, mem_flags);
287 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
289 buf = kmalloc(size, mem_flags);
295 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
297 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
298 btusb_intr_complete, hdev,
299 data->intr_ep->bInterval);
301 urb->transfer_flags |= URB_FREE_BUFFER;
303 usb_anchor_urb(urb, &data->intr_anchor);
305 err = usb_submit_urb(urb, mem_flags);
307 BT_ERR("%s urb %p submission failed (%d)",
308 hdev->name, urb, -err);
309 usb_unanchor_urb(urb);
317 static void btusb_bulk_complete(struct urb *urb)
319 struct hci_dev *hdev = urb->context;
320 struct btusb_data *data = hdev->driver_data;
323 BT_DBG("%s urb %p status %d count %d", hdev->name,
324 urb, urb->status, urb->actual_length);
326 if (!test_bit(HCI_RUNNING, &hdev->flags))
329 if (urb->status == 0) {
330 hdev->stat.byte_rx += urb->actual_length;
332 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
333 urb->transfer_buffer,
334 urb->actual_length) < 0) {
335 BT_ERR("%s corrupted ACL packet", hdev->name);
340 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
343 usb_anchor_urb(urb, &data->bulk_anchor);
344 usb_mark_last_busy(data->udev);
346 err = usb_submit_urb(urb, GFP_ATOMIC);
349 BT_ERR("%s urb %p failed to resubmit (%d)",
350 hdev->name, urb, -err);
351 usb_unanchor_urb(urb);
355 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
357 struct btusb_data *data = hdev->driver_data;
361 int err, size = HCI_MAX_FRAME_SIZE;
363 BT_DBG("%s", hdev->name);
365 if (!data->bulk_rx_ep)
368 urb = usb_alloc_urb(0, mem_flags);
372 buf = kmalloc(size, mem_flags);
378 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
380 usb_fill_bulk_urb(urb, data->udev, pipe,
381 buf, size, btusb_bulk_complete, hdev);
383 urb->transfer_flags |= URB_FREE_BUFFER;
385 usb_mark_last_busy(data->udev);
386 usb_anchor_urb(urb, &data->bulk_anchor);
388 err = usb_submit_urb(urb, mem_flags);
390 BT_ERR("%s urb %p submission failed (%d)",
391 hdev->name, urb, -err);
392 usb_unanchor_urb(urb);
400 static void btusb_isoc_complete(struct urb *urb)
402 struct hci_dev *hdev = urb->context;
403 struct btusb_data *data = hdev->driver_data;
406 BT_DBG("%s urb %p status %d count %d", hdev->name,
407 urb, urb->status, urb->actual_length);
409 if (!test_bit(HCI_RUNNING, &hdev->flags))
412 if (urb->status == 0) {
413 for (i = 0; i < urb->number_of_packets; i++) {
414 unsigned int offset = urb->iso_frame_desc[i].offset;
415 unsigned int length = urb->iso_frame_desc[i].actual_length;
417 if (urb->iso_frame_desc[i].status)
420 hdev->stat.byte_rx += length;
422 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
423 urb->transfer_buffer + offset,
425 BT_ERR("%s corrupted SCO packet", hdev->name);
431 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
434 usb_anchor_urb(urb, &data->isoc_anchor);
436 err = usb_submit_urb(urb, GFP_ATOMIC);
439 BT_ERR("%s urb %p failed to resubmit (%d)",
440 hdev->name, urb, -err);
441 usb_unanchor_urb(urb);
445 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
449 BT_DBG("len %d mtu %d", len, mtu);
451 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
452 i++, offset += mtu, len -= mtu) {
453 urb->iso_frame_desc[i].offset = offset;
454 urb->iso_frame_desc[i].length = mtu;
457 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
458 urb->iso_frame_desc[i].offset = offset;
459 urb->iso_frame_desc[i].length = len;
463 urb->number_of_packets = i;
466 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
468 struct btusb_data *data = hdev->driver_data;
474 BT_DBG("%s", hdev->name);
476 if (!data->isoc_rx_ep)
479 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
483 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
484 BTUSB_MAX_ISOC_FRAMES;
486 buf = kmalloc(size, mem_flags);
492 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
494 urb->dev = data->udev;
497 urb->complete = btusb_isoc_complete;
498 urb->interval = data->isoc_rx_ep->bInterval;
500 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
501 urb->transfer_buffer = buf;
502 urb->transfer_buffer_length = size;
504 __fill_isoc_descriptor(urb, size,
505 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
507 usb_anchor_urb(urb, &data->isoc_anchor);
509 err = usb_submit_urb(urb, mem_flags);
511 BT_ERR("%s urb %p submission failed (%d)",
512 hdev->name, urb, -err);
513 usb_unanchor_urb(urb);
521 static void btusb_tx_complete(struct urb *urb)
523 struct sk_buff *skb = urb->context;
524 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
525 struct btusb_data *data = hdev->driver_data;
527 BT_DBG("%s urb %p status %d count %d", hdev->name,
528 urb, urb->status, urb->actual_length);
530 if (!test_bit(HCI_RUNNING, &hdev->flags))
534 hdev->stat.byte_tx += urb->transfer_buffer_length;
539 spin_lock(&data->txlock);
540 data->tx_in_flight--;
541 spin_unlock(&data->txlock);
543 kfree(urb->setup_packet);
548 static void btusb_isoc_tx_complete(struct urb *urb)
550 struct sk_buff *skb = urb->context;
551 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
553 BT_DBG("%s urb %p status %d count %d", hdev->name,
554 urb, urb->status, urb->actual_length);
556 if (!test_bit(HCI_RUNNING, &hdev->flags))
560 hdev->stat.byte_tx += urb->transfer_buffer_length;
565 kfree(urb->setup_packet);
570 static int btusb_open(struct hci_dev *hdev)
572 struct btusb_data *data = hdev->driver_data;
575 BT_DBG("%s", hdev->name);
577 err = usb_autopm_get_interface(data->intf);
581 data->intf->needs_remote_wakeup = 1;
583 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
586 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
589 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
593 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
595 usb_kill_anchored_urbs(&data->intr_anchor);
599 set_bit(BTUSB_BULK_RUNNING, &data->flags);
600 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
603 usb_autopm_put_interface(data->intf);
607 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
608 clear_bit(HCI_RUNNING, &hdev->flags);
609 usb_autopm_put_interface(data->intf);
613 static void btusb_stop_traffic(struct btusb_data *data)
615 usb_kill_anchored_urbs(&data->intr_anchor);
616 usb_kill_anchored_urbs(&data->bulk_anchor);
617 usb_kill_anchored_urbs(&data->isoc_anchor);
620 static int btusb_close(struct hci_dev *hdev)
622 struct btusb_data *data = hdev->driver_data;
625 BT_DBG("%s", hdev->name);
627 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
630 cancel_work_sync(&data->work);
631 cancel_work_sync(&data->waker);
633 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
634 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
635 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
637 btusb_stop_traffic(data);
638 err = usb_autopm_get_interface(data->intf);
642 data->intf->needs_remote_wakeup = 0;
643 usb_autopm_put_interface(data->intf);
646 usb_scuttle_anchored_urbs(&data->deferred);
650 static int btusb_flush(struct hci_dev *hdev)
652 struct btusb_data *data = hdev->driver_data;
654 BT_DBG("%s", hdev->name);
656 usb_kill_anchored_urbs(&data->tx_anchor);
661 static int btusb_send_frame(struct sk_buff *skb)
663 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
664 struct btusb_data *data = hdev->driver_data;
665 struct usb_ctrlrequest *dr;
670 BT_DBG("%s", hdev->name);
672 if (!test_bit(HCI_RUNNING, &hdev->flags))
675 switch (bt_cb(skb)->pkt_type) {
676 case HCI_COMMAND_PKT:
677 urb = usb_alloc_urb(0, GFP_ATOMIC);
681 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
687 dr->bRequestType = data->cmdreq_type;
691 dr->wLength = __cpu_to_le16(skb->len);
693 pipe = usb_sndctrlpipe(data->udev, 0x00);
695 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
696 skb->data, skb->len, btusb_tx_complete, skb);
701 case HCI_ACLDATA_PKT:
702 if (!data->bulk_tx_ep || (hdev->conn_hash.acl_num < 1 &&
703 hdev->conn_hash.le_num < 1))
706 urb = usb_alloc_urb(0, GFP_ATOMIC);
710 pipe = usb_sndbulkpipe(data->udev,
711 data->bulk_tx_ep->bEndpointAddress);
713 usb_fill_bulk_urb(urb, data->udev, pipe,
714 skb->data, skb->len, btusb_tx_complete, skb);
719 case HCI_SCODATA_PKT:
720 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
723 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
727 pipe = usb_sndisocpipe(data->udev,
728 data->isoc_tx_ep->bEndpointAddress);
730 usb_fill_int_urb(urb, data->udev, pipe,
731 skb->data, skb->len, btusb_isoc_tx_complete,
732 skb, data->isoc_tx_ep->bInterval);
734 urb->transfer_flags = URB_ISO_ASAP;
736 __fill_isoc_descriptor(urb, skb->len,
737 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
748 usb_anchor_urb(urb, &data->deferred);
749 schedule_work(&data->waker);
755 usb_anchor_urb(urb, &data->tx_anchor);
757 err = usb_submit_urb(urb, GFP_ATOMIC);
759 BT_ERR("%s urb %p submission failed", hdev->name, urb);
760 kfree(urb->setup_packet);
761 usb_unanchor_urb(urb);
763 usb_mark_last_busy(data->udev);
772 static void btusb_destruct(struct hci_dev *hdev)
774 struct btusb_data *data = hdev->driver_data;
776 BT_DBG("%s", hdev->name);
781 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
783 struct btusb_data *data = hdev->driver_data;
785 BT_DBG("%s evt %d", hdev->name, evt);
787 if (hdev->conn_hash.sco_num != data->sco_num) {
788 data->sco_num = hdev->conn_hash.sco_num;
789 schedule_work(&data->work);
793 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
795 struct btusb_data *data = hdev->driver_data;
796 struct usb_interface *intf = data->isoc;
797 struct usb_endpoint_descriptor *ep_desc;
803 err = usb_set_interface(data->udev, 1, altsetting);
805 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
809 data->isoc_altsetting = altsetting;
811 data->isoc_tx_ep = NULL;
812 data->isoc_rx_ep = NULL;
814 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
815 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
817 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
818 data->isoc_tx_ep = ep_desc;
822 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
823 data->isoc_rx_ep = ep_desc;
828 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
829 BT_ERR("%s invalid SCO descriptors", hdev->name);
836 static void btusb_work(struct work_struct *work)
838 struct btusb_data *data = container_of(work, struct btusb_data, work);
839 struct hci_dev *hdev = data->hdev;
842 if (hdev->conn_hash.sco_num > 0) {
843 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
844 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
846 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
847 usb_kill_anchored_urbs(&data->isoc_anchor);
851 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
853 if (data->isoc_altsetting != 2) {
854 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
855 usb_kill_anchored_urbs(&data->isoc_anchor);
857 if (__set_isoc_interface(hdev, 2) < 0)
861 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
862 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
863 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
865 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
868 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
869 usb_kill_anchored_urbs(&data->isoc_anchor);
871 __set_isoc_interface(hdev, 0);
872 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
873 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
877 static void btusb_waker(struct work_struct *work)
879 struct btusb_data *data = container_of(work, struct btusb_data, waker);
882 err = usb_autopm_get_interface(data->intf);
886 usb_autopm_put_interface(data->intf);
889 static int btusb_probe(struct usb_interface *intf,
890 const struct usb_device_id *id)
892 struct usb_endpoint_descriptor *ep_desc;
893 struct btusb_data *data;
894 struct hci_dev *hdev;
897 BT_DBG("intf %p id %p", intf, id);
899 /* interface numbers are hardcoded in the spec */
900 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
903 if (!id->driver_info) {
904 const struct usb_device_id *match;
905 match = usb_match_id(intf, blacklist_table);
910 if (id->driver_info == BTUSB_IGNORE)
913 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
916 if (ignore_csr && id->driver_info & BTUSB_CSR)
919 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
922 if (id->driver_info & BTUSB_ATH3012) {
923 struct usb_device *udev = interface_to_usbdev(intf);
925 /* Old firmware would otherwise let ath3k driver load
926 * patch and sysconfig files */
927 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
931 data = kzalloc(sizeof(*data), GFP_KERNEL);
935 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
936 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
938 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
939 data->intr_ep = ep_desc;
943 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
944 data->bulk_tx_ep = ep_desc;
948 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
949 data->bulk_rx_ep = ep_desc;
954 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
959 data->cmdreq_type = USB_TYPE_CLASS;
961 data->udev = interface_to_usbdev(intf);
964 spin_lock_init(&data->lock);
966 INIT_WORK(&data->work, btusb_work);
967 INIT_WORK(&data->waker, btusb_waker);
968 spin_lock_init(&data->txlock);
970 init_usb_anchor(&data->tx_anchor);
971 init_usb_anchor(&data->intr_anchor);
972 init_usb_anchor(&data->bulk_anchor);
973 init_usb_anchor(&data->isoc_anchor);
974 init_usb_anchor(&data->deferred);
976 hdev = hci_alloc_dev();
983 hdev->driver_data = data;
987 SET_HCIDEV_DEV(hdev, &intf->dev);
989 hdev->open = btusb_open;
990 hdev->close = btusb_close;
991 hdev->flush = btusb_flush;
992 hdev->send = btusb_send_frame;
993 hdev->destruct = btusb_destruct;
994 hdev->notify = btusb_notify;
996 hdev->owner = THIS_MODULE;
998 /* Interface numbers are hardcoded in the specification */
999 data->isoc = usb_ifnum_to_if(data->udev, 1);
1002 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1004 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1005 if (!disable_scofix)
1006 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1009 if (id->driver_info & BTUSB_BROKEN_ISOC)
1012 if (id->driver_info & BTUSB_DIGIANSWER) {
1013 data->cmdreq_type = USB_TYPE_VENDOR;
1014 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1017 if (id->driver_info & BTUSB_CSR) {
1018 struct usb_device *udev = data->udev;
1020 /* Old firmware would otherwise execute USB reset */
1021 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1022 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1025 if (id->driver_info & BTUSB_SNIFFER) {
1026 struct usb_device *udev = data->udev;
1028 /* New sniffer firmware has crippled HCI interface */
1029 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1030 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1035 if (id->driver_info & BTUSB_BCM92035) {
1036 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1037 struct sk_buff *skb;
1039 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1041 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1042 skb_queue_tail(&hdev->driver_init, skb);
1047 err = usb_driver_claim_interface(&btusb_driver,
1056 err = hci_register_dev(hdev);
1063 usb_set_intfdata(intf, data);
1068 static void btusb_disconnect(struct usb_interface *intf)
1070 struct btusb_data *data = usb_get_intfdata(intf);
1071 struct hci_dev *hdev;
1073 BT_DBG("intf %p", intf);
1080 __hci_dev_hold(hdev);
1082 usb_set_intfdata(data->intf, NULL);
1085 usb_set_intfdata(data->isoc, NULL);
1087 hci_unregister_dev(hdev);
1089 if (intf == data->isoc)
1090 usb_driver_release_interface(&btusb_driver, data->intf);
1091 else if (data->isoc)
1092 usb_driver_release_interface(&btusb_driver, data->isoc);
1094 __hci_dev_put(hdev);
1100 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1102 struct btusb_data *data = usb_get_intfdata(intf);
1104 BT_DBG("intf %p", intf);
1106 if (data->suspend_count++)
1109 spin_lock_irq(&data->txlock);
1110 if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {
1111 set_bit(BTUSB_SUSPENDING, &data->flags);
1112 spin_unlock_irq(&data->txlock);
1114 spin_unlock_irq(&data->txlock);
1115 data->suspend_count--;
1119 cancel_work_sync(&data->work);
1121 btusb_stop_traffic(data);
1122 usb_kill_anchored_urbs(&data->tx_anchor);
1127 static void play_deferred(struct btusb_data *data)
1132 while ((urb = usb_get_from_anchor(&data->deferred))) {
1133 err = usb_submit_urb(urb, GFP_ATOMIC);
1137 data->tx_in_flight++;
1139 usb_scuttle_anchored_urbs(&data->deferred);
1142 static int btusb_resume(struct usb_interface *intf)
1144 struct btusb_data *data = usb_get_intfdata(intf);
1145 struct hci_dev *hdev = data->hdev;
1148 BT_DBG("intf %p", intf);
1150 if (--data->suspend_count)
1153 if (!test_bit(HCI_RUNNING, &hdev->flags))
1156 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1157 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1159 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1164 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1165 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1167 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1171 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1174 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1175 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1176 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1178 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1181 spin_lock_irq(&data->txlock);
1182 play_deferred(data);
1183 clear_bit(BTUSB_SUSPENDING, &data->flags);
1184 spin_unlock_irq(&data->txlock);
1185 schedule_work(&data->work);
1190 usb_scuttle_anchored_urbs(&data->deferred);
1192 spin_lock_irq(&data->txlock);
1193 clear_bit(BTUSB_SUSPENDING, &data->flags);
1194 spin_unlock_irq(&data->txlock);
1200 static struct usb_driver btusb_driver = {
1202 .probe = btusb_probe,
1203 .disconnect = btusb_disconnect,
1205 .suspend = btusb_suspend,
1206 .resume = btusb_resume,
1208 .id_table = btusb_table,
1209 .supports_autosuspend = 1,
1212 static int __init btusb_init(void)
1214 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1216 return usb_register(&btusb_driver);
1219 static void __exit btusb_exit(void)
1221 usb_deregister(&btusb_driver);
1224 module_init(btusb_init);
1225 module_exit(btusb_exit);
1227 module_param(ignore_dga, bool, 0644);
1228 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1230 module_param(ignore_csr, bool, 0644);
1231 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1233 module_param(ignore_sniffer, bool, 0644);
1234 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1236 module_param(disable_scofix, bool, 0644);
1237 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1239 module_param(force_scofix, bool, 0644);
1240 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1242 module_param(reset, bool, 0644);
1243 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1245 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1246 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1247 MODULE_VERSION(VERSION);
1248 MODULE_LICENSE("GPL");