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/module.h>
25 #include <linux/usb.h>
27 #include <net/bluetooth/bluetooth.h>
28 #include <net/bluetooth/hci_core.h>
32 static bool ignore_dga;
33 static bool ignore_csr;
34 static bool ignore_sniffer;
35 static bool disable_scofix;
36 static bool force_scofix;
38 static bool reset = 1;
40 static struct usb_driver btusb_driver;
42 #define BTUSB_IGNORE 0x01
43 #define BTUSB_DIGIANSWER 0x02
44 #define BTUSB_CSR 0x04
45 #define BTUSB_SNIFFER 0x08
46 #define BTUSB_BCM92035 0x10
47 #define BTUSB_BROKEN_ISOC 0x20
48 #define BTUSB_WRONG_SCO_MTU 0x40
49 #define BTUSB_ATH3012 0x80
51 static struct usb_device_id btusb_table[] = {
52 /* Generic Bluetooth USB device */
53 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
55 /* Broadcom SoftSailing reporting vendor specific */
56 { USB_DEVICE(0x0a5c, 0x21e1) },
58 /* Apple MacBookPro 7,1 */
59 { USB_DEVICE(0x05ac, 0x8213) },
62 { USB_DEVICE(0x05ac, 0x8215) },
64 /* Apple MacBookPro6,2 */
65 { USB_DEVICE(0x05ac, 0x8218) },
67 /* Apple MacBookAir3,1, MacBookAir3,2 */
68 { USB_DEVICE(0x05ac, 0x821b) },
70 /* Apple MacBookAir4,1 */
71 { USB_DEVICE(0x05ac, 0x821f) },
73 /* Apple MacBookPro8,2 */
74 { USB_DEVICE(0x05ac, 0x821a) },
76 /* Apple MacMini5,1 */
77 { USB_DEVICE(0x05ac, 0x8281) },
79 /* AVM BlueFRITZ! USB v2.0 */
80 { USB_DEVICE(0x057c, 0x3800) },
82 /* Bluetooth Ultraport Module from IBM */
83 { USB_DEVICE(0x04bf, 0x030a) },
85 /* ALPS Modules with non-standard id */
86 { USB_DEVICE(0x044e, 0x3001) },
87 { USB_DEVICE(0x044e, 0x3002) },
89 /* Ericsson with non-standard id */
90 { USB_DEVICE(0x0bdb, 0x1002) },
92 /* Canyon CN-BTU1 with HID interfaces */
93 { USB_DEVICE(0x0c10, 0x0000) },
95 /* Broadcom BCM20702A0 */
96 { USB_DEVICE(0x0489, 0xe042) },
97 { USB_DEVICE(0x0a5c, 0x21e3) },
98 { USB_DEVICE(0x0a5c, 0x21e6) },
99 { USB_DEVICE(0x0a5c, 0x21e8) },
100 { USB_DEVICE(0x0a5c, 0x21f3) },
101 { USB_DEVICE(0x0a5c, 0x21f4) },
102 { USB_DEVICE(0x413c, 0x8197) },
104 /* Foxconn - Hon Hai */
105 { USB_DEVICE(0x0489, 0xe033) },
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(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
122 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
123 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
124 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
126 /* Atheros AR9285 Malbec with sflash firmware */
127 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
129 /* Atheros 3012 with sflash firmware */
130 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
131 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
132 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
133 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
134 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
135 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
136 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
137 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
139 /* Atheros AR5BBU12 with sflash firmware */
140 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
142 /* Atheros AR5BBU12 with sflash firmware */
143 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
145 /* Broadcom BCM2035 */
146 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
147 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
148 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
150 /* Broadcom BCM2045 */
151 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
152 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
154 /* IBM/Lenovo ThinkPad with Broadcom chip */
155 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
156 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
158 /* HP laptop with Broadcom chip */
159 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
161 /* Dell laptop with Broadcom chip */
162 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
164 /* Dell Wireless 370 and 410 devices */
165 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
166 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
168 /* Belkin F8T012 and F8T013 devices */
169 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
170 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
172 /* Asus WL-BTD202 device */
173 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
175 /* Kensington Bluetooth USB adapter */
176 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
178 /* RTX Telecom based adapters with buggy SCO support */
179 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
180 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
182 /* CONWISE Technology based adapters with buggy SCO support */
183 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
185 /* Digianswer devices */
186 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
187 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
189 /* CSR BlueCore Bluetooth Sniffer */
190 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
192 /* Frontline ComProbe Bluetooth Sniffer */
193 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
195 { } /* Terminating entry */
198 #define BTUSB_MAX_ISOC_FRAMES 10
200 #define BTUSB_INTR_RUNNING 0
201 #define BTUSB_BULK_RUNNING 1
202 #define BTUSB_ISOC_RUNNING 2
203 #define BTUSB_SUSPENDING 3
204 #define BTUSB_DID_ISO_RESUME 4
207 struct hci_dev *hdev;
208 struct usb_device *udev;
209 struct usb_interface *intf;
210 struct usb_interface *isoc;
216 struct work_struct work;
217 struct work_struct waker;
219 struct usb_anchor tx_anchor;
220 struct usb_anchor intr_anchor;
221 struct usb_anchor bulk_anchor;
222 struct usb_anchor isoc_anchor;
223 struct usb_anchor deferred;
227 struct usb_endpoint_descriptor *intr_ep;
228 struct usb_endpoint_descriptor *bulk_tx_ep;
229 struct usb_endpoint_descriptor *bulk_rx_ep;
230 struct usb_endpoint_descriptor *isoc_tx_ep;
231 struct usb_endpoint_descriptor *isoc_rx_ep;
235 unsigned int sco_num;
240 static int inc_tx(struct btusb_data *data)
245 spin_lock_irqsave(&data->txlock, flags);
246 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
248 data->tx_in_flight++;
249 spin_unlock_irqrestore(&data->txlock, flags);
254 static void btusb_intr_complete(struct urb *urb)
256 struct hci_dev *hdev = urb->context;
257 struct btusb_data *data = hci_get_drvdata(hdev);
260 BT_DBG("%s urb %p status %d count %d", hdev->name,
261 urb, urb->status, urb->actual_length);
263 if (!test_bit(HCI_RUNNING, &hdev->flags))
266 if (urb->status == 0) {
267 hdev->stat.byte_rx += urb->actual_length;
269 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
270 urb->transfer_buffer,
271 urb->actual_length) < 0) {
272 BT_ERR("%s corrupted event packet", hdev->name);
277 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
280 usb_mark_last_busy(data->udev);
281 usb_anchor_urb(urb, &data->intr_anchor);
283 err = usb_submit_urb(urb, GFP_ATOMIC);
285 /* -EPERM: urb is being killed;
286 * -ENODEV: device got disconnected */
287 if (err != -EPERM && err != -ENODEV)
288 BT_ERR("%s urb %p failed to resubmit (%d)",
289 hdev->name, urb, -err);
290 usb_unanchor_urb(urb);
294 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
296 struct btusb_data *data = hci_get_drvdata(hdev);
302 BT_DBG("%s", hdev->name);
307 urb = usb_alloc_urb(0, mem_flags);
311 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
313 buf = kmalloc(size, mem_flags);
319 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
321 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
322 btusb_intr_complete, hdev,
323 data->intr_ep->bInterval);
325 urb->transfer_flags |= URB_FREE_BUFFER;
327 usb_anchor_urb(urb, &data->intr_anchor);
329 err = usb_submit_urb(urb, mem_flags);
331 if (err != -EPERM && err != -ENODEV)
332 BT_ERR("%s urb %p submission failed (%d)",
333 hdev->name, urb, -err);
334 usb_unanchor_urb(urb);
342 static void btusb_bulk_complete(struct urb *urb)
344 struct hci_dev *hdev = urb->context;
345 struct btusb_data *data = hci_get_drvdata(hdev);
348 BT_DBG("%s urb %p status %d count %d", hdev->name,
349 urb, urb->status, urb->actual_length);
351 if (!test_bit(HCI_RUNNING, &hdev->flags))
354 if (urb->status == 0) {
355 hdev->stat.byte_rx += urb->actual_length;
357 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
358 urb->transfer_buffer,
359 urb->actual_length) < 0) {
360 BT_ERR("%s corrupted ACL packet", hdev->name);
365 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
368 usb_anchor_urb(urb, &data->bulk_anchor);
369 usb_mark_last_busy(data->udev);
371 err = usb_submit_urb(urb, GFP_ATOMIC);
373 /* -EPERM: urb is being killed;
374 * -ENODEV: device got disconnected */
375 if (err != -EPERM && err != -ENODEV)
376 BT_ERR("%s urb %p failed to resubmit (%d)",
377 hdev->name, urb, -err);
378 usb_unanchor_urb(urb);
382 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
384 struct btusb_data *data = hci_get_drvdata(hdev);
388 int err, size = HCI_MAX_FRAME_SIZE;
390 BT_DBG("%s", hdev->name);
392 if (!data->bulk_rx_ep)
395 urb = usb_alloc_urb(0, mem_flags);
399 buf = kmalloc(size, mem_flags);
405 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
407 usb_fill_bulk_urb(urb, data->udev, pipe,
408 buf, size, btusb_bulk_complete, hdev);
410 urb->transfer_flags |= URB_FREE_BUFFER;
412 usb_mark_last_busy(data->udev);
413 usb_anchor_urb(urb, &data->bulk_anchor);
415 err = usb_submit_urb(urb, mem_flags);
417 if (err != -EPERM && err != -ENODEV)
418 BT_ERR("%s urb %p submission failed (%d)",
419 hdev->name, urb, -err);
420 usb_unanchor_urb(urb);
428 static void btusb_isoc_complete(struct urb *urb)
430 struct hci_dev *hdev = urb->context;
431 struct btusb_data *data = hci_get_drvdata(hdev);
434 BT_DBG("%s urb %p status %d count %d", hdev->name,
435 urb, urb->status, urb->actual_length);
437 if (!test_bit(HCI_RUNNING, &hdev->flags))
440 if (urb->status == 0) {
441 for (i = 0; i < urb->number_of_packets; i++) {
442 unsigned int offset = urb->iso_frame_desc[i].offset;
443 unsigned int length = urb->iso_frame_desc[i].actual_length;
445 if (urb->iso_frame_desc[i].status)
448 hdev->stat.byte_rx += length;
450 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
451 urb->transfer_buffer + offset,
453 BT_ERR("%s corrupted SCO packet", hdev->name);
459 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
462 usb_anchor_urb(urb, &data->isoc_anchor);
464 err = usb_submit_urb(urb, GFP_ATOMIC);
466 /* -EPERM: urb is being killed;
467 * -ENODEV: device got disconnected */
468 if (err != -EPERM && err != -ENODEV)
469 BT_ERR("%s urb %p failed to resubmit (%d)",
470 hdev->name, urb, -err);
471 usb_unanchor_urb(urb);
475 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
479 BT_DBG("len %d mtu %d", len, mtu);
481 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
482 i++, offset += mtu, len -= mtu) {
483 urb->iso_frame_desc[i].offset = offset;
484 urb->iso_frame_desc[i].length = mtu;
487 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
488 urb->iso_frame_desc[i].offset = offset;
489 urb->iso_frame_desc[i].length = len;
493 urb->number_of_packets = i;
496 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
498 struct btusb_data *data = hci_get_drvdata(hdev);
504 BT_DBG("%s", hdev->name);
506 if (!data->isoc_rx_ep)
509 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
513 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
514 BTUSB_MAX_ISOC_FRAMES;
516 buf = kmalloc(size, mem_flags);
522 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
524 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
525 hdev, data->isoc_rx_ep->bInterval);
527 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
529 __fill_isoc_descriptor(urb, size,
530 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
532 usb_anchor_urb(urb, &data->isoc_anchor);
534 err = usb_submit_urb(urb, mem_flags);
536 if (err != -EPERM && err != -ENODEV)
537 BT_ERR("%s urb %p submission failed (%d)",
538 hdev->name, urb, -err);
539 usb_unanchor_urb(urb);
547 static void btusb_tx_complete(struct urb *urb)
549 struct sk_buff *skb = urb->context;
550 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
551 struct btusb_data *data = hci_get_drvdata(hdev);
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 spin_lock(&data->txlock);
566 data->tx_in_flight--;
567 spin_unlock(&data->txlock);
569 kfree(urb->setup_packet);
574 static void btusb_isoc_tx_complete(struct urb *urb)
576 struct sk_buff *skb = urb->context;
577 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
579 BT_DBG("%s urb %p status %d count %d", hdev->name,
580 urb, urb->status, urb->actual_length);
582 if (!test_bit(HCI_RUNNING, &hdev->flags))
586 hdev->stat.byte_tx += urb->transfer_buffer_length;
591 kfree(urb->setup_packet);
596 static int btusb_open(struct hci_dev *hdev)
598 struct btusb_data *data = hci_get_drvdata(hdev);
601 BT_DBG("%s", hdev->name);
603 err = usb_autopm_get_interface(data->intf);
607 data->intf->needs_remote_wakeup = 1;
609 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
612 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
615 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
619 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
621 usb_kill_anchored_urbs(&data->intr_anchor);
625 set_bit(BTUSB_BULK_RUNNING, &data->flags);
626 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
629 usb_autopm_put_interface(data->intf);
633 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
634 clear_bit(HCI_RUNNING, &hdev->flags);
635 usb_autopm_put_interface(data->intf);
639 static void btusb_stop_traffic(struct btusb_data *data)
641 usb_kill_anchored_urbs(&data->intr_anchor);
642 usb_kill_anchored_urbs(&data->bulk_anchor);
643 usb_kill_anchored_urbs(&data->isoc_anchor);
646 static int btusb_close(struct hci_dev *hdev)
648 struct btusb_data *data = hci_get_drvdata(hdev);
651 BT_DBG("%s", hdev->name);
653 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
656 cancel_work_sync(&data->work);
657 cancel_work_sync(&data->waker);
659 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
660 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
661 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
663 btusb_stop_traffic(data);
664 err = usb_autopm_get_interface(data->intf);
668 data->intf->needs_remote_wakeup = 0;
669 usb_autopm_put_interface(data->intf);
672 usb_scuttle_anchored_urbs(&data->deferred);
676 static int btusb_flush(struct hci_dev *hdev)
678 struct btusb_data *data = hci_get_drvdata(hdev);
680 BT_DBG("%s", hdev->name);
682 usb_kill_anchored_urbs(&data->tx_anchor);
687 static int btusb_send_frame(struct sk_buff *skb)
689 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
690 struct btusb_data *data = hci_get_drvdata(hdev);
691 struct usb_ctrlrequest *dr;
696 BT_DBG("%s", hdev->name);
698 if (!test_bit(HCI_RUNNING, &hdev->flags))
701 switch (bt_cb(skb)->pkt_type) {
702 case HCI_COMMAND_PKT:
703 urb = usb_alloc_urb(0, GFP_ATOMIC);
707 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
713 dr->bRequestType = data->cmdreq_type;
717 dr->wLength = __cpu_to_le16(skb->len);
719 pipe = usb_sndctrlpipe(data->udev, 0x00);
721 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
722 skb->data, skb->len, btusb_tx_complete, skb);
727 case HCI_ACLDATA_PKT:
728 if (!data->bulk_tx_ep)
731 urb = usb_alloc_urb(0, GFP_ATOMIC);
735 pipe = usb_sndbulkpipe(data->udev,
736 data->bulk_tx_ep->bEndpointAddress);
738 usb_fill_bulk_urb(urb, data->udev, pipe,
739 skb->data, skb->len, btusb_tx_complete, skb);
744 case HCI_SCODATA_PKT:
745 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
748 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
752 pipe = usb_sndisocpipe(data->udev,
753 data->isoc_tx_ep->bEndpointAddress);
755 usb_fill_int_urb(urb, data->udev, pipe,
756 skb->data, skb->len, btusb_isoc_tx_complete,
757 skb, data->isoc_tx_ep->bInterval);
759 urb->transfer_flags = URB_ISO_ASAP;
761 __fill_isoc_descriptor(urb, skb->len,
762 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
773 usb_anchor_urb(urb, &data->deferred);
774 schedule_work(&data->waker);
780 usb_anchor_urb(urb, &data->tx_anchor);
782 err = usb_submit_urb(urb, GFP_ATOMIC);
784 if (err != -EPERM && err != -ENODEV)
785 BT_ERR("%s urb %p submission failed (%d)",
786 hdev->name, urb, -err);
787 kfree(urb->setup_packet);
788 usb_unanchor_urb(urb);
790 usb_mark_last_busy(data->udev);
798 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
800 struct btusb_data *data = hci_get_drvdata(hdev);
802 BT_DBG("%s evt %d", hdev->name, evt);
804 if (hdev->conn_hash.sco_num != data->sco_num) {
805 data->sco_num = hdev->conn_hash.sco_num;
806 schedule_work(&data->work);
810 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
812 struct btusb_data *data = hci_get_drvdata(hdev);
813 struct usb_interface *intf = data->isoc;
814 struct usb_endpoint_descriptor *ep_desc;
820 err = usb_set_interface(data->udev, 1, altsetting);
822 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
826 data->isoc_altsetting = altsetting;
828 data->isoc_tx_ep = NULL;
829 data->isoc_rx_ep = NULL;
831 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
832 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
834 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
835 data->isoc_tx_ep = ep_desc;
839 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
840 data->isoc_rx_ep = ep_desc;
845 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
846 BT_ERR("%s invalid SCO descriptors", hdev->name);
853 static void btusb_work(struct work_struct *work)
855 struct btusb_data *data = container_of(work, struct btusb_data, work);
856 struct hci_dev *hdev = data->hdev;
860 if (hdev->conn_hash.sco_num > 0) {
861 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
862 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
864 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
865 usb_kill_anchored_urbs(&data->isoc_anchor);
869 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
872 if (hdev->voice_setting & 0x0020) {
873 static const int alts[3] = { 2, 4, 5 };
874 new_alts = alts[hdev->conn_hash.sco_num - 1];
876 new_alts = hdev->conn_hash.sco_num;
879 if (data->isoc_altsetting != new_alts) {
880 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
881 usb_kill_anchored_urbs(&data->isoc_anchor);
883 if (__set_isoc_interface(hdev, new_alts) < 0)
887 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
888 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
889 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
891 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
894 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
895 usb_kill_anchored_urbs(&data->isoc_anchor);
897 __set_isoc_interface(hdev, 0);
898 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
899 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
903 static void btusb_waker(struct work_struct *work)
905 struct btusb_data *data = container_of(work, struct btusb_data, waker);
908 err = usb_autopm_get_interface(data->intf);
912 usb_autopm_put_interface(data->intf);
915 static int btusb_probe(struct usb_interface *intf,
916 const struct usb_device_id *id)
918 struct usb_endpoint_descriptor *ep_desc;
919 struct btusb_data *data;
920 struct hci_dev *hdev;
923 BT_DBG("intf %p id %p", intf, id);
925 /* interface numbers are hardcoded in the spec */
926 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
929 if (!id->driver_info) {
930 const struct usb_device_id *match;
931 match = usb_match_id(intf, blacklist_table);
936 if (id->driver_info == BTUSB_IGNORE)
939 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
942 if (ignore_csr && id->driver_info & BTUSB_CSR)
945 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
948 if (id->driver_info & BTUSB_ATH3012) {
949 struct usb_device *udev = interface_to_usbdev(intf);
951 /* Old firmware would otherwise let ath3k driver load
952 * patch and sysconfig files */
953 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
957 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
961 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
962 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
964 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
965 data->intr_ep = ep_desc;
969 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
970 data->bulk_tx_ep = ep_desc;
974 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
975 data->bulk_rx_ep = ep_desc;
980 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
983 data->cmdreq_type = USB_TYPE_CLASS;
985 data->udev = interface_to_usbdev(intf);
988 spin_lock_init(&data->lock);
990 INIT_WORK(&data->work, btusb_work);
991 INIT_WORK(&data->waker, btusb_waker);
992 spin_lock_init(&data->txlock);
994 init_usb_anchor(&data->tx_anchor);
995 init_usb_anchor(&data->intr_anchor);
996 init_usb_anchor(&data->bulk_anchor);
997 init_usb_anchor(&data->isoc_anchor);
998 init_usb_anchor(&data->deferred);
1000 hdev = hci_alloc_dev();
1004 hdev->bus = HCI_USB;
1005 hci_set_drvdata(hdev, data);
1009 SET_HCIDEV_DEV(hdev, &intf->dev);
1011 hdev->open = btusb_open;
1012 hdev->close = btusb_close;
1013 hdev->flush = btusb_flush;
1014 hdev->send = btusb_send_frame;
1015 hdev->notify = btusb_notify;
1017 /* Interface numbers are hardcoded in the specification */
1018 data->isoc = usb_ifnum_to_if(data->udev, 1);
1021 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1023 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1024 if (!disable_scofix)
1025 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1028 if (id->driver_info & BTUSB_BROKEN_ISOC)
1031 if (id->driver_info & BTUSB_DIGIANSWER) {
1032 data->cmdreq_type = USB_TYPE_VENDOR;
1033 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1036 if (id->driver_info & BTUSB_CSR) {
1037 struct usb_device *udev = data->udev;
1039 /* Old firmware would otherwise execute USB reset */
1040 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1041 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1044 if (id->driver_info & BTUSB_SNIFFER) {
1045 struct usb_device *udev = data->udev;
1047 /* New sniffer firmware has crippled HCI interface */
1048 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1049 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1054 if (id->driver_info & BTUSB_BCM92035) {
1055 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1056 struct sk_buff *skb;
1058 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1060 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1061 skb_queue_tail(&hdev->driver_init, skb);
1066 err = usb_driver_claim_interface(&btusb_driver,
1074 err = hci_register_dev(hdev);
1080 usb_set_intfdata(intf, data);
1085 static void btusb_disconnect(struct usb_interface *intf)
1087 struct btusb_data *data = usb_get_intfdata(intf);
1088 struct hci_dev *hdev;
1090 BT_DBG("intf %p", intf);
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);
1112 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1114 struct btusb_data *data = usb_get_intfdata(intf);
1116 BT_DBG("intf %p", intf);
1118 if (data->suspend_count++)
1121 spin_lock_irq(&data->txlock);
1122 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1123 set_bit(BTUSB_SUSPENDING, &data->flags);
1124 spin_unlock_irq(&data->txlock);
1126 spin_unlock_irq(&data->txlock);
1127 data->suspend_count--;
1131 cancel_work_sync(&data->work);
1133 btusb_stop_traffic(data);
1134 usb_kill_anchored_urbs(&data->tx_anchor);
1139 static void play_deferred(struct btusb_data *data)
1144 while ((urb = usb_get_from_anchor(&data->deferred))) {
1145 err = usb_submit_urb(urb, GFP_ATOMIC);
1149 data->tx_in_flight++;
1151 usb_scuttle_anchored_urbs(&data->deferred);
1154 static int btusb_resume(struct usb_interface *intf)
1156 struct btusb_data *data = usb_get_intfdata(intf);
1157 struct hci_dev *hdev = data->hdev;
1160 BT_DBG("intf %p", intf);
1162 if (--data->suspend_count)
1165 if (!test_bit(HCI_RUNNING, &hdev->flags))
1168 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1169 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1171 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1176 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1177 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1179 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1183 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1186 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1187 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1188 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1190 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1193 spin_lock_irq(&data->txlock);
1194 play_deferred(data);
1195 clear_bit(BTUSB_SUSPENDING, &data->flags);
1196 spin_unlock_irq(&data->txlock);
1197 schedule_work(&data->work);
1202 usb_scuttle_anchored_urbs(&data->deferred);
1204 spin_lock_irq(&data->txlock);
1205 clear_bit(BTUSB_SUSPENDING, &data->flags);
1206 spin_unlock_irq(&data->txlock);
1212 static struct usb_driver btusb_driver = {
1214 .probe = btusb_probe,
1215 .disconnect = btusb_disconnect,
1217 .suspend = btusb_suspend,
1218 .resume = btusb_resume,
1220 .id_table = btusb_table,
1221 .supports_autosuspend = 1,
1222 .disable_hub_initiated_lpm = 1,
1225 module_usb_driver(btusb_driver);
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");