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 /* Apple-specific (Broadcom) devices */
56 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
58 /* Broadcom SoftSailing reporting vendor specific */
59 { USB_DEVICE(0x0a5c, 0x21e1) },
61 /* Apple MacBookPro 7,1 */
62 { USB_DEVICE(0x05ac, 0x8213) },
65 { USB_DEVICE(0x05ac, 0x8215) },
67 /* Apple MacBookPro6,2 */
68 { USB_DEVICE(0x05ac, 0x8218) },
70 /* Apple MacBookAir3,1, MacBookAir3,2 */
71 { USB_DEVICE(0x05ac, 0x821b) },
73 /* Apple MacBookAir4,1 */
74 { USB_DEVICE(0x05ac, 0x821f) },
76 /* Apple MacBookPro8,2 */
77 { USB_DEVICE(0x05ac, 0x821a) },
79 /* Apple MacMini5,1 */
80 { USB_DEVICE(0x05ac, 0x8281) },
82 /* AVM BlueFRITZ! USB v2.0 */
83 { USB_DEVICE(0x057c, 0x3800) },
85 /* Bluetooth Ultraport Module from IBM */
86 { USB_DEVICE(0x04bf, 0x030a) },
88 /* ALPS Modules with non-standard id */
89 { USB_DEVICE(0x044e, 0x3001) },
90 { USB_DEVICE(0x044e, 0x3002) },
92 /* Ericsson with non-standard id */
93 { USB_DEVICE(0x0bdb, 0x1002) },
95 /* Canyon CN-BTU1 with HID interfaces */
96 { USB_DEVICE(0x0c10, 0x0000) },
98 /* Broadcom BCM20702A0 */
99 { USB_DEVICE(0x0b05, 0x17b5) },
100 { USB_DEVICE(0x04ca, 0x2003) },
101 { USB_DEVICE(0x0489, 0xe042) },
102 { USB_DEVICE(0x413c, 0x8197) },
104 /* Foxconn - Hon Hai */
105 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
107 /*Broadcom devices with vendor specific id */
108 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
110 { } /* Terminating entry */
113 MODULE_DEVICE_TABLE(usb, btusb_table);
115 static struct usb_device_id blacklist_table[] = {
116 /* CSR BlueCore devices */
117 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
119 /* Broadcom BCM2033 without firmware */
120 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
122 /* Atheros 3011 with sflash firmware */
123 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
124 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
125 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
126 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
127 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
128 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
130 /* Atheros AR9285 Malbec with sflash firmware */
131 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
133 /* Atheros 3012 with sflash firmware */
134 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
135 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
136 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
137 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
138 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
139 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
140 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
147 /* Atheros AR5BBU12 with sflash firmware */
148 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
150 /* Atheros AR5BBU12 with sflash firmware */
151 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
154 /* Broadcom BCM2035 */
155 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
156 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
157 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
159 /* Broadcom BCM2045 */
160 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
161 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
163 /* IBM/Lenovo ThinkPad with Broadcom chip */
164 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
165 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
167 /* HP laptop with Broadcom chip */
168 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
170 /* Dell laptop with Broadcom chip */
171 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
173 /* Dell Wireless 370 and 410 devices */
174 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
175 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
177 /* Belkin F8T012 and F8T013 devices */
178 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
179 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
181 /* Asus WL-BTD202 device */
182 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
184 /* Kensington Bluetooth USB adapter */
185 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
187 /* RTX Telecom based adapters with buggy SCO support */
188 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
189 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
191 /* CONWISE Technology based adapters with buggy SCO support */
192 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
194 /* Digianswer devices */
195 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
196 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
198 /* CSR BlueCore Bluetooth Sniffer */
199 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
201 /* Frontline ComProbe Bluetooth Sniffer */
202 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
204 { } /* Terminating entry */
207 #define BTUSB_MAX_ISOC_FRAMES 10
209 #define BTUSB_INTR_RUNNING 0
210 #define BTUSB_BULK_RUNNING 1
211 #define BTUSB_ISOC_RUNNING 2
212 #define BTUSB_SUSPENDING 3
213 #define BTUSB_DID_ISO_RESUME 4
216 struct hci_dev *hdev;
217 struct usb_device *udev;
218 struct usb_interface *intf;
219 struct usb_interface *isoc;
225 struct work_struct work;
226 struct work_struct waker;
228 struct usb_anchor tx_anchor;
229 struct usb_anchor intr_anchor;
230 struct usb_anchor bulk_anchor;
231 struct usb_anchor isoc_anchor;
232 struct usb_anchor deferred;
236 struct usb_endpoint_descriptor *intr_ep;
237 struct usb_endpoint_descriptor *bulk_tx_ep;
238 struct usb_endpoint_descriptor *bulk_rx_ep;
239 struct usb_endpoint_descriptor *isoc_tx_ep;
240 struct usb_endpoint_descriptor *isoc_rx_ep;
244 unsigned int sco_num;
249 static int inc_tx(struct btusb_data *data)
254 spin_lock_irqsave(&data->txlock, flags);
255 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
257 data->tx_in_flight++;
258 spin_unlock_irqrestore(&data->txlock, flags);
263 static void btusb_intr_complete(struct urb *urb)
265 struct hci_dev *hdev = urb->context;
266 struct btusb_data *data = hci_get_drvdata(hdev);
269 BT_DBG("%s urb %p status %d count %d", hdev->name,
270 urb, urb->status, urb->actual_length);
272 if (!test_bit(HCI_RUNNING, &hdev->flags))
275 if (urb->status == 0) {
276 hdev->stat.byte_rx += urb->actual_length;
278 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
279 urb->transfer_buffer,
280 urb->actual_length) < 0) {
281 BT_ERR("%s corrupted event packet", hdev->name);
286 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
289 usb_mark_last_busy(data->udev);
290 usb_anchor_urb(urb, &data->intr_anchor);
292 err = usb_submit_urb(urb, GFP_ATOMIC);
294 /* -EPERM: urb is being killed;
295 * -ENODEV: device got disconnected */
296 if (err != -EPERM && err != -ENODEV)
297 BT_ERR("%s urb %p failed to resubmit (%d)",
298 hdev->name, urb, -err);
299 usb_unanchor_urb(urb);
303 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
305 struct btusb_data *data = hci_get_drvdata(hdev);
311 BT_DBG("%s", hdev->name);
316 urb = usb_alloc_urb(0, mem_flags);
320 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
322 buf = kmalloc(size, mem_flags);
328 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
330 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
331 btusb_intr_complete, hdev,
332 data->intr_ep->bInterval);
334 urb->transfer_flags |= URB_FREE_BUFFER;
336 usb_anchor_urb(urb, &data->intr_anchor);
338 err = usb_submit_urb(urb, mem_flags);
340 if (err != -EPERM && err != -ENODEV)
341 BT_ERR("%s urb %p submission failed (%d)",
342 hdev->name, urb, -err);
343 usb_unanchor_urb(urb);
351 static void btusb_bulk_complete(struct urb *urb)
353 struct hci_dev *hdev = urb->context;
354 struct btusb_data *data = hci_get_drvdata(hdev);
357 BT_DBG("%s urb %p status %d count %d", hdev->name,
358 urb, urb->status, urb->actual_length);
360 if (!test_bit(HCI_RUNNING, &hdev->flags))
363 if (urb->status == 0) {
364 hdev->stat.byte_rx += urb->actual_length;
366 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
367 urb->transfer_buffer,
368 urb->actual_length) < 0) {
369 BT_ERR("%s corrupted ACL packet", hdev->name);
374 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
377 usb_anchor_urb(urb, &data->bulk_anchor);
378 usb_mark_last_busy(data->udev);
380 err = usb_submit_urb(urb, GFP_ATOMIC);
382 /* -EPERM: urb is being killed;
383 * -ENODEV: device got disconnected */
384 if (err != -EPERM && err != -ENODEV)
385 BT_ERR("%s urb %p failed to resubmit (%d)",
386 hdev->name, urb, -err);
387 usb_unanchor_urb(urb);
391 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
393 struct btusb_data *data = hci_get_drvdata(hdev);
397 int err, size = HCI_MAX_FRAME_SIZE;
399 BT_DBG("%s", hdev->name);
401 if (!data->bulk_rx_ep)
404 urb = usb_alloc_urb(0, mem_flags);
408 buf = kmalloc(size, mem_flags);
414 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
416 usb_fill_bulk_urb(urb, data->udev, pipe,
417 buf, size, btusb_bulk_complete, hdev);
419 urb->transfer_flags |= URB_FREE_BUFFER;
421 usb_mark_last_busy(data->udev);
422 usb_anchor_urb(urb, &data->bulk_anchor);
424 err = usb_submit_urb(urb, mem_flags);
426 if (err != -EPERM && err != -ENODEV)
427 BT_ERR("%s urb %p submission failed (%d)",
428 hdev->name, urb, -err);
429 usb_unanchor_urb(urb);
437 static void btusb_isoc_complete(struct urb *urb)
439 struct hci_dev *hdev = urb->context;
440 struct btusb_data *data = hci_get_drvdata(hdev);
443 BT_DBG("%s urb %p status %d count %d", hdev->name,
444 urb, urb->status, urb->actual_length);
446 if (!test_bit(HCI_RUNNING, &hdev->flags))
449 if (urb->status == 0) {
450 for (i = 0; i < urb->number_of_packets; i++) {
451 unsigned int offset = urb->iso_frame_desc[i].offset;
452 unsigned int length = urb->iso_frame_desc[i].actual_length;
454 if (urb->iso_frame_desc[i].status)
457 hdev->stat.byte_rx += length;
459 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
460 urb->transfer_buffer + offset,
462 BT_ERR("%s corrupted SCO packet", hdev->name);
468 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
471 usb_anchor_urb(urb, &data->isoc_anchor);
473 err = usb_submit_urb(urb, GFP_ATOMIC);
475 /* -EPERM: urb is being killed;
476 * -ENODEV: device got disconnected */
477 if (err != -EPERM && err != -ENODEV)
478 BT_ERR("%s urb %p failed to resubmit (%d)",
479 hdev->name, urb, -err);
480 usb_unanchor_urb(urb);
484 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
488 BT_DBG("len %d mtu %d", len, mtu);
490 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
491 i++, offset += mtu, len -= mtu) {
492 urb->iso_frame_desc[i].offset = offset;
493 urb->iso_frame_desc[i].length = mtu;
496 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
497 urb->iso_frame_desc[i].offset = offset;
498 urb->iso_frame_desc[i].length = len;
502 urb->number_of_packets = i;
505 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
507 struct btusb_data *data = hci_get_drvdata(hdev);
513 BT_DBG("%s", hdev->name);
515 if (!data->isoc_rx_ep)
518 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
522 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
523 BTUSB_MAX_ISOC_FRAMES;
525 buf = kmalloc(size, mem_flags);
531 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
533 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
534 hdev, data->isoc_rx_ep->bInterval);
536 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
538 __fill_isoc_descriptor(urb, size,
539 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
541 usb_anchor_urb(urb, &data->isoc_anchor);
543 err = usb_submit_urb(urb, mem_flags);
545 if (err != -EPERM && err != -ENODEV)
546 BT_ERR("%s urb %p submission failed (%d)",
547 hdev->name, urb, -err);
548 usb_unanchor_urb(urb);
556 static void btusb_tx_complete(struct urb *urb)
558 struct sk_buff *skb = urb->context;
559 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
560 struct btusb_data *data = hci_get_drvdata(hdev);
562 BT_DBG("%s urb %p status %d count %d", hdev->name,
563 urb, urb->status, urb->actual_length);
565 if (!test_bit(HCI_RUNNING, &hdev->flags))
569 hdev->stat.byte_tx += urb->transfer_buffer_length;
574 spin_lock(&data->txlock);
575 data->tx_in_flight--;
576 spin_unlock(&data->txlock);
578 kfree(urb->setup_packet);
583 static void btusb_isoc_tx_complete(struct urb *urb)
585 struct sk_buff *skb = urb->context;
586 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
588 BT_DBG("%s urb %p status %d count %d", hdev->name,
589 urb, urb->status, urb->actual_length);
591 if (!test_bit(HCI_RUNNING, &hdev->flags))
595 hdev->stat.byte_tx += urb->transfer_buffer_length;
600 kfree(urb->setup_packet);
605 static int btusb_open(struct hci_dev *hdev)
607 struct btusb_data *data = hci_get_drvdata(hdev);
610 BT_DBG("%s", hdev->name);
612 err = usb_autopm_get_interface(data->intf);
616 data->intf->needs_remote_wakeup = 1;
618 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
621 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
624 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
628 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
630 usb_kill_anchored_urbs(&data->intr_anchor);
634 set_bit(BTUSB_BULK_RUNNING, &data->flags);
635 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
638 usb_autopm_put_interface(data->intf);
642 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
643 clear_bit(HCI_RUNNING, &hdev->flags);
644 usb_autopm_put_interface(data->intf);
648 static void btusb_stop_traffic(struct btusb_data *data)
650 usb_kill_anchored_urbs(&data->intr_anchor);
651 usb_kill_anchored_urbs(&data->bulk_anchor);
652 usb_kill_anchored_urbs(&data->isoc_anchor);
655 static int btusb_close(struct hci_dev *hdev)
657 struct btusb_data *data = hci_get_drvdata(hdev);
660 BT_DBG("%s", hdev->name);
662 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
665 cancel_work_sync(&data->work);
666 cancel_work_sync(&data->waker);
668 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
669 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
670 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
672 btusb_stop_traffic(data);
673 err = usb_autopm_get_interface(data->intf);
677 data->intf->needs_remote_wakeup = 0;
678 usb_autopm_put_interface(data->intf);
681 usb_scuttle_anchored_urbs(&data->deferred);
685 static int btusb_flush(struct hci_dev *hdev)
687 struct btusb_data *data = hci_get_drvdata(hdev);
689 BT_DBG("%s", hdev->name);
691 usb_kill_anchored_urbs(&data->tx_anchor);
696 static int btusb_send_frame(struct sk_buff *skb)
698 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
699 struct btusb_data *data = hci_get_drvdata(hdev);
700 struct usb_ctrlrequest *dr;
705 BT_DBG("%s", hdev->name);
707 if (!test_bit(HCI_RUNNING, &hdev->flags))
710 switch (bt_cb(skb)->pkt_type) {
711 case HCI_COMMAND_PKT:
712 urb = usb_alloc_urb(0, GFP_ATOMIC);
716 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
722 dr->bRequestType = data->cmdreq_type;
726 dr->wLength = __cpu_to_le16(skb->len);
728 pipe = usb_sndctrlpipe(data->udev, 0x00);
730 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
731 skb->data, skb->len, btusb_tx_complete, skb);
736 case HCI_ACLDATA_PKT:
737 if (!data->bulk_tx_ep)
740 urb = usb_alloc_urb(0, GFP_ATOMIC);
744 pipe = usb_sndbulkpipe(data->udev,
745 data->bulk_tx_ep->bEndpointAddress);
747 usb_fill_bulk_urb(urb, data->udev, pipe,
748 skb->data, skb->len, btusb_tx_complete, skb);
753 case HCI_SCODATA_PKT:
754 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
757 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
761 pipe = usb_sndisocpipe(data->udev,
762 data->isoc_tx_ep->bEndpointAddress);
764 usb_fill_int_urb(urb, data->udev, pipe,
765 skb->data, skb->len, btusb_isoc_tx_complete,
766 skb, data->isoc_tx_ep->bInterval);
768 urb->transfer_flags = URB_ISO_ASAP;
770 __fill_isoc_descriptor(urb, skb->len,
771 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
782 usb_anchor_urb(urb, &data->deferred);
783 schedule_work(&data->waker);
789 usb_anchor_urb(urb, &data->tx_anchor);
791 err = usb_submit_urb(urb, GFP_ATOMIC);
793 if (err != -EPERM && err != -ENODEV)
794 BT_ERR("%s urb %p submission failed (%d)",
795 hdev->name, urb, -err);
796 kfree(urb->setup_packet);
797 usb_unanchor_urb(urb);
799 usb_mark_last_busy(data->udev);
807 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
809 struct btusb_data *data = hci_get_drvdata(hdev);
811 BT_DBG("%s evt %d", hdev->name, evt);
813 if (hdev->conn_hash.sco_num != data->sco_num) {
814 data->sco_num = hdev->conn_hash.sco_num;
815 schedule_work(&data->work);
819 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
821 struct btusb_data *data = hci_get_drvdata(hdev);
822 struct usb_interface *intf = data->isoc;
823 struct usb_endpoint_descriptor *ep_desc;
829 err = usb_set_interface(data->udev, 1, altsetting);
831 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
835 data->isoc_altsetting = altsetting;
837 data->isoc_tx_ep = NULL;
838 data->isoc_rx_ep = NULL;
840 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
841 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
843 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
844 data->isoc_tx_ep = ep_desc;
848 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
849 data->isoc_rx_ep = ep_desc;
854 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
855 BT_ERR("%s invalid SCO descriptors", hdev->name);
862 static void btusb_work(struct work_struct *work)
864 struct btusb_data *data = container_of(work, struct btusb_data, work);
865 struct hci_dev *hdev = data->hdev;
869 if (hdev->conn_hash.sco_num > 0) {
870 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
871 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
873 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
874 usb_kill_anchored_urbs(&data->isoc_anchor);
878 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
881 if (hdev->voice_setting & 0x0020) {
882 static const int alts[3] = { 2, 4, 5 };
883 new_alts = alts[hdev->conn_hash.sco_num - 1];
885 new_alts = hdev->conn_hash.sco_num;
888 if (data->isoc_altsetting != new_alts) {
889 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
890 usb_kill_anchored_urbs(&data->isoc_anchor);
892 if (__set_isoc_interface(hdev, new_alts) < 0)
896 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
897 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
898 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
900 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
903 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
904 usb_kill_anchored_urbs(&data->isoc_anchor);
906 __set_isoc_interface(hdev, 0);
907 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
908 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
912 static void btusb_waker(struct work_struct *work)
914 struct btusb_data *data = container_of(work, struct btusb_data, waker);
917 err = usb_autopm_get_interface(data->intf);
921 usb_autopm_put_interface(data->intf);
924 static int btusb_probe(struct usb_interface *intf,
925 const struct usb_device_id *id)
927 struct usb_endpoint_descriptor *ep_desc;
928 struct btusb_data *data;
929 struct hci_dev *hdev;
932 BT_DBG("intf %p id %p", intf, id);
934 /* interface numbers are hardcoded in the spec */
935 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
938 if (!id->driver_info) {
939 const struct usb_device_id *match;
940 match = usb_match_id(intf, blacklist_table);
945 if (id->driver_info == BTUSB_IGNORE)
948 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
951 if (ignore_csr && id->driver_info & BTUSB_CSR)
954 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
957 if (id->driver_info & BTUSB_ATH3012) {
958 struct usb_device *udev = interface_to_usbdev(intf);
960 /* Old firmware would otherwise let ath3k driver load
961 * patch and sysconfig files */
962 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
966 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
970 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
971 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
973 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
974 data->intr_ep = ep_desc;
978 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
979 data->bulk_tx_ep = ep_desc;
983 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
984 data->bulk_rx_ep = ep_desc;
989 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
992 data->cmdreq_type = USB_TYPE_CLASS;
994 data->udev = interface_to_usbdev(intf);
997 spin_lock_init(&data->lock);
999 INIT_WORK(&data->work, btusb_work);
1000 INIT_WORK(&data->waker, btusb_waker);
1001 spin_lock_init(&data->txlock);
1003 init_usb_anchor(&data->tx_anchor);
1004 init_usb_anchor(&data->intr_anchor);
1005 init_usb_anchor(&data->bulk_anchor);
1006 init_usb_anchor(&data->isoc_anchor);
1007 init_usb_anchor(&data->deferred);
1009 hdev = hci_alloc_dev();
1013 hdev->bus = HCI_USB;
1014 hci_set_drvdata(hdev, data);
1018 SET_HCIDEV_DEV(hdev, &intf->dev);
1020 hdev->open = btusb_open;
1021 hdev->close = btusb_close;
1022 hdev->flush = btusb_flush;
1023 hdev->send = btusb_send_frame;
1024 hdev->notify = btusb_notify;
1026 /* Interface numbers are hardcoded in the specification */
1027 data->isoc = usb_ifnum_to_if(data->udev, 1);
1030 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1032 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1033 if (!disable_scofix)
1034 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1037 if (id->driver_info & BTUSB_BROKEN_ISOC)
1040 if (id->driver_info & BTUSB_DIGIANSWER) {
1041 data->cmdreq_type = USB_TYPE_VENDOR;
1042 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1045 if (id->driver_info & BTUSB_CSR) {
1046 struct usb_device *udev = data->udev;
1048 /* Old firmware would otherwise execute USB reset */
1049 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1050 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1053 if (id->driver_info & BTUSB_SNIFFER) {
1054 struct usb_device *udev = data->udev;
1056 /* New sniffer firmware has crippled HCI interface */
1057 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1058 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1063 if (id->driver_info & BTUSB_BCM92035) {
1064 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1065 struct sk_buff *skb;
1067 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1069 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1070 skb_queue_tail(&hdev->driver_init, skb);
1075 err = usb_driver_claim_interface(&btusb_driver,
1083 err = hci_register_dev(hdev);
1089 usb_set_intfdata(intf, data);
1094 static void btusb_disconnect(struct usb_interface *intf)
1096 struct btusb_data *data = usb_get_intfdata(intf);
1097 struct hci_dev *hdev;
1099 BT_DBG("intf %p", intf);
1105 usb_set_intfdata(data->intf, NULL);
1108 usb_set_intfdata(data->isoc, NULL);
1110 hci_unregister_dev(hdev);
1112 if (intf == data->isoc)
1113 usb_driver_release_interface(&btusb_driver, data->intf);
1114 else if (data->isoc)
1115 usb_driver_release_interface(&btusb_driver, data->isoc);
1121 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1123 struct btusb_data *data = usb_get_intfdata(intf);
1125 BT_DBG("intf %p", intf);
1127 if (data->suspend_count++)
1130 spin_lock_irq(&data->txlock);
1131 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1132 set_bit(BTUSB_SUSPENDING, &data->flags);
1133 spin_unlock_irq(&data->txlock);
1135 spin_unlock_irq(&data->txlock);
1136 data->suspend_count--;
1140 cancel_work_sync(&data->work);
1142 btusb_stop_traffic(data);
1143 usb_kill_anchored_urbs(&data->tx_anchor);
1148 static void play_deferred(struct btusb_data *data)
1153 while ((urb = usb_get_from_anchor(&data->deferred))) {
1154 err = usb_submit_urb(urb, GFP_ATOMIC);
1158 data->tx_in_flight++;
1160 usb_scuttle_anchored_urbs(&data->deferred);
1163 static int btusb_resume(struct usb_interface *intf)
1165 struct btusb_data *data = usb_get_intfdata(intf);
1166 struct hci_dev *hdev = data->hdev;
1169 BT_DBG("intf %p", intf);
1171 if (--data->suspend_count)
1174 if (!test_bit(HCI_RUNNING, &hdev->flags))
1177 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1178 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1180 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1185 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1186 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1188 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1192 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1195 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1196 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1197 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1199 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1202 spin_lock_irq(&data->txlock);
1203 play_deferred(data);
1204 clear_bit(BTUSB_SUSPENDING, &data->flags);
1205 spin_unlock_irq(&data->txlock);
1206 schedule_work(&data->work);
1211 usb_scuttle_anchored_urbs(&data->deferred);
1213 spin_lock_irq(&data->txlock);
1214 clear_bit(BTUSB_SUSPENDING, &data->flags);
1215 spin_unlock_irq(&data->txlock);
1221 static struct usb_driver btusb_driver = {
1223 .probe = btusb_probe,
1224 .disconnect = btusb_disconnect,
1226 .suspend = btusb_suspend,
1227 .resume = btusb_resume,
1229 .id_table = btusb_table,
1230 .supports_autosuspend = 1,
1231 .disable_hub_initiated_lpm = 1,
1234 module_usb_driver(btusb_driver);
1236 module_param(ignore_dga, bool, 0644);
1237 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1239 module_param(ignore_csr, bool, 0644);
1240 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1242 module_param(ignore_sniffer, bool, 0644);
1243 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1245 module_param(disable_scofix, bool, 0644);
1246 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1248 module_param(force_scofix, bool, 0644);
1249 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1251 module_param(reset, bool, 0644);
1252 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1254 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1255 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1256 MODULE_VERSION(VERSION);
1257 MODULE_LICENSE("GPL");