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 /* MediaTek MT76x0E */
67 { USB_DEVICE(0x0e8d, 0x763f) },
69 /* Broadcom SoftSailing reporting vendor specific */
70 { USB_DEVICE(0x0a5c, 0x21e1) },
72 /* Apple MacBookPro 7,1 */
73 { USB_DEVICE(0x05ac, 0x8213) },
76 { USB_DEVICE(0x05ac, 0x8215) },
78 /* Apple MacBookPro6,2 */
79 { USB_DEVICE(0x05ac, 0x8218) },
81 /* Apple MacBookAir3,1, MacBookAir3,2 */
82 { USB_DEVICE(0x05ac, 0x821b) },
84 /* Apple MacBookAir4,1 */
85 { USB_DEVICE(0x05ac, 0x821f) },
87 /* Apple MacBookPro8,2 */
88 { USB_DEVICE(0x05ac, 0x821a) },
90 /* Apple MacMini5,1 */
91 { USB_DEVICE(0x05ac, 0x8281) },
93 /* AVM BlueFRITZ! USB v2.0 */
94 { USB_DEVICE(0x057c, 0x3800) },
96 /* Bluetooth Ultraport Module from IBM */
97 { USB_DEVICE(0x04bf, 0x030a) },
99 /* ALPS Modules with non-standard id */
100 { USB_DEVICE(0x044e, 0x3001) },
101 { USB_DEVICE(0x044e, 0x3002) },
103 /* Ericsson with non-standard id */
104 { USB_DEVICE(0x0bdb, 0x1002) },
106 /* Canyon CN-BTU1 with HID interfaces */
107 { USB_DEVICE(0x0c10, 0x0000) },
109 /* Broadcom BCM20702A0 */
110 { USB_DEVICE(0x0489, 0xe042) },
111 { USB_DEVICE(0x04ca, 0x2003) },
112 { USB_DEVICE(0x0b05, 0x17b5) },
113 { USB_DEVICE(0x0b05, 0x17cb) },
114 { USB_DEVICE(0x413c, 0x8197) },
116 /* Foxconn - Hon Hai */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
119 /* Broadcom devices with vendor specific id */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
122 /* Belkin F8065bf - Broadcom based */
123 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
125 /* IMC Networks - Broadcom based */
126 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
128 { } /* Terminating entry */
131 MODULE_DEVICE_TABLE(usb, btusb_table);
133 static struct usb_device_id blacklist_table[] = {
134 /* CSR BlueCore devices */
135 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
137 /* Broadcom BCM2033 without firmware */
138 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
140 /* Atheros 3011 with sflash firmware */
141 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
142 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
143 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
144 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
145 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
146 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
148 /* Atheros AR9285 Malbec with sflash firmware */
149 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
151 /* Atheros 3012 with sflash firmware */
152 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
183 /* Atheros AR5BBU12 with sflash firmware */
184 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
186 /* Atheros AR5BBU12 with sflash firmware */
187 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
190 /* Broadcom BCM2035 */
191 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
192 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
193 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
195 /* Broadcom BCM2045 */
196 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
199 /* IBM/Lenovo ThinkPad with Broadcom chip */
200 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
201 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
203 /* HP laptop with Broadcom chip */
204 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
206 /* Dell laptop with Broadcom chip */
207 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
209 /* Dell Wireless 370 and 410 devices */
210 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
211 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
213 /* Belkin F8T012 and F8T013 devices */
214 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
215 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
217 /* Asus WL-BTD202 device */
218 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
220 /* Kensington Bluetooth USB adapter */
221 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
223 /* RTX Telecom based adapters with buggy SCO support */
224 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
225 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
227 /* CONWISE Technology based adapters with buggy SCO support */
228 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
230 /* Digianswer devices */
231 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
232 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
234 /* CSR BlueCore Bluetooth Sniffer */
235 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
237 /* Frontline ComProbe Bluetooth Sniffer */
238 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
240 { } /* Terminating entry */
243 #define BTUSB_MAX_ISOC_FRAMES 10
245 #define BTUSB_INTR_RUNNING 0
246 #define BTUSB_BULK_RUNNING 1
247 #define BTUSB_ISOC_RUNNING 2
248 #define BTUSB_SUSPENDING 3
249 #define BTUSB_DID_ISO_RESUME 4
252 struct hci_dev *hdev;
253 struct usb_device *udev;
254 struct usb_interface *intf;
255 struct usb_interface *isoc;
261 struct work_struct work;
262 struct work_struct waker;
264 struct usb_anchor tx_anchor;
265 struct usb_anchor intr_anchor;
266 struct usb_anchor bulk_anchor;
267 struct usb_anchor isoc_anchor;
268 struct usb_anchor deferred;
272 struct usb_endpoint_descriptor *intr_ep;
273 struct usb_endpoint_descriptor *bulk_tx_ep;
274 struct usb_endpoint_descriptor *bulk_rx_ep;
275 struct usb_endpoint_descriptor *isoc_tx_ep;
276 struct usb_endpoint_descriptor *isoc_rx_ep;
280 unsigned int sco_num;
285 static int inc_tx(struct btusb_data *data)
290 spin_lock_irqsave(&data->txlock, flags);
291 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
293 data->tx_in_flight++;
294 spin_unlock_irqrestore(&data->txlock, flags);
299 static void btusb_intr_complete(struct urb *urb)
301 struct hci_dev *hdev = urb->context;
302 struct btusb_data *data = hdev->driver_data;
305 BT_DBG("%s urb %p status %d count %d", hdev->name,
306 urb, urb->status, urb->actual_length);
308 if (!test_bit(HCI_RUNNING, &hdev->flags))
311 if (urb->status == 0) {
312 hdev->stat.byte_rx += urb->actual_length;
314 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
315 urb->transfer_buffer,
316 urb->actual_length) < 0) {
317 BT_ERR("%s corrupted event packet", hdev->name);
320 } else if (urb->status == -ENOENT) {
321 /* Avoid suspend failed when usb_kill_urb */
325 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
328 usb_mark_last_busy(data->udev);
329 usb_anchor_urb(urb, &data->intr_anchor);
331 err = usb_submit_urb(urb, GFP_ATOMIC);
333 /* -EPERM: urb is being killed;
334 * -ENODEV: device got disconnected */
335 if (err != -EPERM && err != -ENODEV)
336 BT_ERR("%s urb %p failed to resubmit (%d)",
337 hdev->name, urb, -err);
338 usb_unanchor_urb(urb);
342 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
344 struct btusb_data *data = hdev->driver_data;
350 BT_DBG("%s", hdev->name);
355 urb = usb_alloc_urb(0, mem_flags);
359 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
361 buf = kmalloc(size, mem_flags);
367 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
369 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
370 btusb_intr_complete, hdev,
371 data->intr_ep->bInterval);
373 urb->transfer_flags |= URB_FREE_BUFFER;
375 usb_anchor_urb(urb, &data->intr_anchor);
377 err = usb_submit_urb(urb, mem_flags);
379 BT_ERR("%s urb %p submission failed (%d)",
380 hdev->name, urb, -err);
381 usb_unanchor_urb(urb);
389 static void btusb_bulk_complete(struct urb *urb)
391 struct hci_dev *hdev = urb->context;
392 struct btusb_data *data = hdev->driver_data;
395 BT_DBG("%s urb %p status %d count %d", hdev->name,
396 urb, urb->status, urb->actual_length);
398 if (!test_bit(HCI_RUNNING, &hdev->flags))
401 if (urb->status == 0) {
402 hdev->stat.byte_rx += urb->actual_length;
404 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
405 urb->transfer_buffer,
406 urb->actual_length) < 0) {
407 BT_ERR("%s corrupted ACL packet", hdev->name);
410 } else if (urb->status == -ENOENT) {
411 /* Avoid suspend failed when usb_kill_urb */
415 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
418 usb_anchor_urb(urb, &data->bulk_anchor);
419 usb_mark_last_busy(data->udev);
421 err = usb_submit_urb(urb, GFP_ATOMIC);
423 /* -EPERM: urb is being killed;
424 * -ENODEV: device got disconnected */
425 if (err != -EPERM && err != -ENODEV)
426 BT_ERR("%s urb %p failed to resubmit (%d)",
427 hdev->name, urb, -err);
428 usb_unanchor_urb(urb);
432 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
434 struct btusb_data *data = hdev->driver_data;
438 int err, size = HCI_MAX_FRAME_SIZE;
440 BT_DBG("%s", hdev->name);
442 if (!data->bulk_rx_ep)
445 urb = usb_alloc_urb(0, mem_flags);
449 buf = kmalloc(size, mem_flags);
455 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
457 usb_fill_bulk_urb(urb, data->udev, pipe,
458 buf, size, btusb_bulk_complete, hdev);
460 urb->transfer_flags |= URB_FREE_BUFFER;
462 usb_mark_last_busy(data->udev);
463 usb_anchor_urb(urb, &data->bulk_anchor);
465 err = usb_submit_urb(urb, mem_flags);
467 BT_ERR("%s urb %p submission failed (%d)",
468 hdev->name, urb, -err);
469 usb_unanchor_urb(urb);
477 static void btusb_isoc_complete(struct urb *urb)
479 struct hci_dev *hdev = urb->context;
480 struct btusb_data *data = hdev->driver_data;
483 BT_DBG("%s urb %p status %d count %d", hdev->name,
484 urb, urb->status, urb->actual_length);
486 if (!test_bit(HCI_RUNNING, &hdev->flags))
489 if (urb->status == 0) {
490 for (i = 0; i < urb->number_of_packets; i++) {
491 unsigned int offset = urb->iso_frame_desc[i].offset;
492 unsigned int length = urb->iso_frame_desc[i].actual_length;
494 if (urb->iso_frame_desc[i].status)
497 hdev->stat.byte_rx += length;
499 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
500 urb->transfer_buffer + offset,
502 BT_ERR("%s corrupted SCO packet", hdev->name);
506 } else if (urb->status == -ENOENT) {
507 /* Avoid suspend failed when usb_kill_urb */
511 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
514 usb_anchor_urb(urb, &data->isoc_anchor);
516 err = usb_submit_urb(urb, GFP_ATOMIC);
518 /* -EPERM: urb is being killed;
519 * -ENODEV: device got disconnected */
520 if (err != -EPERM && err != -ENODEV)
521 BT_ERR("%s urb %p failed to resubmit (%d)",
522 hdev->name, urb, -err);
523 usb_unanchor_urb(urb);
527 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
531 BT_DBG("len %d mtu %d", len, mtu);
533 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
534 i++, offset += mtu, len -= mtu) {
535 urb->iso_frame_desc[i].offset = offset;
536 urb->iso_frame_desc[i].length = mtu;
539 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
540 urb->iso_frame_desc[i].offset = offset;
541 urb->iso_frame_desc[i].length = len;
545 urb->number_of_packets = i;
548 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
550 struct btusb_data *data = hdev->driver_data;
556 BT_DBG("%s", hdev->name);
558 if (!data->isoc_rx_ep)
561 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
565 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
566 BTUSB_MAX_ISOC_FRAMES;
568 buf = kmalloc(size, mem_flags);
574 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
576 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
577 hdev, data->isoc_rx_ep->bInterval);
579 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
581 __fill_isoc_descriptor(urb, size,
582 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
584 usb_anchor_urb(urb, &data->isoc_anchor);
586 err = usb_submit_urb(urb, mem_flags);
588 BT_ERR("%s urb %p submission failed (%d)",
589 hdev->name, urb, -err);
590 usb_unanchor_urb(urb);
598 static void btusb_tx_complete(struct urb *urb)
600 struct sk_buff *skb = urb->context;
601 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
602 struct btusb_data *data = hdev->driver_data;
604 BT_DBG("%s urb %p status %d count %d", hdev->name,
605 urb, urb->status, urb->actual_length);
607 if (!test_bit(HCI_RUNNING, &hdev->flags))
611 hdev->stat.byte_tx += urb->transfer_buffer_length;
616 spin_lock(&data->txlock);
617 data->tx_in_flight--;
618 spin_unlock(&data->txlock);
620 kfree(urb->setup_packet);
625 static void btusb_isoc_tx_complete(struct urb *urb)
627 struct sk_buff *skb = urb->context;
628 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
630 BT_DBG("%s urb %p status %d count %d", hdev->name,
631 urb, urb->status, urb->actual_length);
633 if (!test_bit(HCI_RUNNING, &hdev->flags))
637 hdev->stat.byte_tx += urb->transfer_buffer_length;
642 kfree(urb->setup_packet);
647 static int btusb_open(struct hci_dev *hdev)
649 struct btusb_data *data = hdev->driver_data;
652 BT_DBG("%s", hdev->name);
654 err = usb_autopm_get_interface(data->intf);
658 data->intf->needs_remote_wakeup = 1;
660 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
663 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
666 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
670 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
672 usb_kill_anchored_urbs(&data->intr_anchor);
676 set_bit(BTUSB_BULK_RUNNING, &data->flags);
677 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
680 usb_autopm_put_interface(data->intf);
684 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
685 clear_bit(HCI_RUNNING, &hdev->flags);
686 usb_autopm_put_interface(data->intf);
690 static void btusb_stop_traffic(struct btusb_data *data)
692 usb_kill_anchored_urbs(&data->intr_anchor);
693 usb_kill_anchored_urbs(&data->bulk_anchor);
694 usb_kill_anchored_urbs(&data->isoc_anchor);
697 static int btusb_close(struct hci_dev *hdev)
699 struct btusb_data *data = hdev->driver_data;
702 BT_DBG("%s", hdev->name);
704 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
707 cancel_work_sync(&data->work);
708 cancel_work_sync(&data->waker);
710 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
711 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
712 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
714 btusb_stop_traffic(data);
715 err = usb_autopm_get_interface(data->intf);
719 data->intf->needs_remote_wakeup = 0;
720 usb_autopm_put_interface(data->intf);
723 usb_scuttle_anchored_urbs(&data->deferred);
727 static int btusb_flush(struct hci_dev *hdev)
729 struct btusb_data *data = hdev->driver_data;
731 BT_DBG("%s", hdev->name);
733 usb_kill_anchored_urbs(&data->tx_anchor);
738 static int btusb_send_frame(struct sk_buff *skb)
740 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
741 struct btusb_data *data = hdev->driver_data;
742 struct usb_ctrlrequest *dr;
747 BT_DBG("%s", hdev->name);
749 if (!test_bit(HCI_RUNNING, &hdev->flags))
752 switch (bt_cb(skb)->pkt_type) {
753 case HCI_COMMAND_PKT:
754 urb = usb_alloc_urb(0, GFP_ATOMIC);
758 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
764 dr->bRequestType = data->cmdreq_type;
768 dr->wLength = __cpu_to_le16(skb->len);
770 pipe = usb_sndctrlpipe(data->udev, 0x00);
772 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
773 skb->data, skb->len, btusb_tx_complete, skb);
778 case HCI_ACLDATA_PKT:
779 if (!data->bulk_tx_ep)
782 urb = usb_alloc_urb(0, GFP_ATOMIC);
786 pipe = usb_sndbulkpipe(data->udev,
787 data->bulk_tx_ep->bEndpointAddress);
789 usb_fill_bulk_urb(urb, data->udev, pipe,
790 skb->data, skb->len, btusb_tx_complete, skb);
795 case HCI_SCODATA_PKT:
796 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
799 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
803 pipe = usb_sndisocpipe(data->udev,
804 data->isoc_tx_ep->bEndpointAddress);
806 usb_fill_int_urb(urb, data->udev, pipe,
807 skb->data, skb->len, btusb_isoc_tx_complete,
808 skb, data->isoc_tx_ep->bInterval);
810 urb->transfer_flags = URB_ISO_ASAP;
812 __fill_isoc_descriptor(urb, skb->len,
813 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
824 usb_anchor_urb(urb, &data->deferred);
825 schedule_work(&data->waker);
831 usb_anchor_urb(urb, &data->tx_anchor);
833 err = usb_submit_urb(urb, GFP_ATOMIC);
835 BT_ERR("%s urb %p submission failed", hdev->name, urb);
836 kfree(urb->setup_packet);
837 usb_unanchor_urb(urb);
839 usb_mark_last_busy(data->udev);
847 static void btusb_destruct(struct hci_dev *hdev)
849 struct btusb_data *data = hdev->driver_data;
851 BT_DBG("%s", hdev->name);
856 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
858 struct btusb_data *data = hdev->driver_data;
860 BT_DBG("%s evt %d", hdev->name, evt);
862 if (hdev->conn_hash.sco_num != data->sco_num) {
863 data->sco_num = hdev->conn_hash.sco_num;
864 schedule_work(&data->work);
868 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
870 struct btusb_data *data = hdev->driver_data;
871 struct usb_interface *intf = data->isoc;
872 struct usb_endpoint_descriptor *ep_desc;
878 err = usb_set_interface(data->udev, 1, altsetting);
880 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
884 data->isoc_altsetting = altsetting;
886 data->isoc_tx_ep = NULL;
887 data->isoc_rx_ep = NULL;
889 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
890 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
892 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
893 data->isoc_tx_ep = ep_desc;
897 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
898 data->isoc_rx_ep = ep_desc;
903 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
904 BT_ERR("%s invalid SCO descriptors", hdev->name);
911 static void btusb_work(struct work_struct *work)
913 struct btusb_data *data = container_of(work, struct btusb_data, work);
914 struct hci_dev *hdev = data->hdev;
917 if (hdev->conn_hash.sco_num > 0) {
918 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
919 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
921 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
922 usb_kill_anchored_urbs(&data->isoc_anchor);
926 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
928 if (data->isoc_altsetting != 2) {
929 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
930 usb_kill_anchored_urbs(&data->isoc_anchor);
932 if (__set_isoc_interface(hdev, 2) < 0)
936 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
937 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
938 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
940 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
943 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
944 usb_kill_anchored_urbs(&data->isoc_anchor);
946 __set_isoc_interface(hdev, 0);
947 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
948 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
952 static void btusb_waker(struct work_struct *work)
954 struct btusb_data *data = container_of(work, struct btusb_data, waker);
957 err = usb_autopm_get_interface(data->intf);
961 usb_autopm_put_interface(data->intf);
964 static int btusb_probe(struct usb_interface *intf,
965 const struct usb_device_id *id)
967 struct usb_endpoint_descriptor *ep_desc;
968 struct btusb_data *data;
969 struct hci_dev *hdev;
972 BT_DBG("intf %p id %p", intf, id);
974 /* interface numbers are hardcoded in the spec */
975 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
978 if (!id->driver_info) {
979 const struct usb_device_id *match;
980 match = usb_match_id(intf, blacklist_table);
985 if (id->driver_info == BTUSB_IGNORE)
988 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
991 if (ignore_csr && id->driver_info & BTUSB_CSR)
994 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
997 if (id->driver_info & BTUSB_ATH3012) {
998 struct usb_device *udev = interface_to_usbdev(intf);
1000 /* Old firmware would otherwise let ath3k driver load
1001 * patch and sysconfig files */
1002 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1006 data = kzalloc(sizeof(*data), GFP_KERNEL);
1010 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1011 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1013 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1014 data->intr_ep = ep_desc;
1018 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1019 data->bulk_tx_ep = ep_desc;
1023 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1024 data->bulk_rx_ep = ep_desc;
1029 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1034 data->cmdreq_type = USB_TYPE_CLASS;
1036 data->udev = interface_to_usbdev(intf);
1039 spin_lock_init(&data->lock);
1041 INIT_WORK(&data->work, btusb_work);
1042 INIT_WORK(&data->waker, btusb_waker);
1043 spin_lock_init(&data->txlock);
1045 init_usb_anchor(&data->tx_anchor);
1046 init_usb_anchor(&data->intr_anchor);
1047 init_usb_anchor(&data->bulk_anchor);
1048 init_usb_anchor(&data->isoc_anchor);
1049 init_usb_anchor(&data->deferred);
1051 hdev = hci_alloc_dev();
1057 hdev->bus = HCI_USB;
1058 hdev->driver_data = data;
1062 SET_HCIDEV_DEV(hdev, &intf->dev);
1064 hdev->open = btusb_open;
1065 hdev->close = btusb_close;
1066 hdev->flush = btusb_flush;
1067 hdev->send = btusb_send_frame;
1068 hdev->destruct = btusb_destruct;
1069 hdev->notify = btusb_notify;
1071 hdev->owner = THIS_MODULE;
1073 /* Interface numbers are hardcoded in the specification */
1074 data->isoc = usb_ifnum_to_if(data->udev, 1);
1077 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1079 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1080 if (!disable_scofix)
1081 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1084 if (id->driver_info & BTUSB_BROKEN_ISOC)
1087 if (id->driver_info & BTUSB_DIGIANSWER) {
1088 data->cmdreq_type = USB_TYPE_VENDOR;
1089 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1092 if (id->driver_info & BTUSB_CSR) {
1093 struct usb_device *udev = data->udev;
1095 /* Old firmware would otherwise execute USB reset */
1096 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1097 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1100 if (id->driver_info & BTUSB_SNIFFER) {
1101 struct usb_device *udev = data->udev;
1103 /* New sniffer firmware has crippled HCI interface */
1104 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1105 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1110 if (id->driver_info & BTUSB_BCM92035) {
1111 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1112 struct sk_buff *skb;
1114 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1116 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1117 skb_queue_tail(&hdev->driver_init, skb);
1122 err = usb_driver_claim_interface(&btusb_driver,
1131 err = hci_register_dev(hdev);
1138 usb_set_intfdata(intf, data);
1143 static void btusb_disconnect(struct usb_interface *intf)
1145 struct btusb_data *data = usb_get_intfdata(intf);
1146 struct hci_dev *hdev;
1148 BT_DBG("intf %p", intf);
1155 __hci_dev_hold(hdev);
1157 usb_set_intfdata(data->intf, NULL);
1160 usb_set_intfdata(data->isoc, NULL);
1162 hci_unregister_dev(hdev);
1164 if (intf == data->isoc)
1165 usb_driver_release_interface(&btusb_driver, data->intf);
1166 else if (data->isoc)
1167 usb_driver_release_interface(&btusb_driver, data->isoc);
1169 __hci_dev_put(hdev);
1175 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1177 struct btusb_data *data = usb_get_intfdata(intf);
1179 BT_DBG("intf %p", intf);
1181 if (data->suspend_count++)
1184 spin_lock_irq(&data->txlock);
1185 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1186 set_bit(BTUSB_SUSPENDING, &data->flags);
1187 spin_unlock_irq(&data->txlock);
1189 spin_unlock_irq(&data->txlock);
1190 data->suspend_count--;
1194 cancel_work_sync(&data->work);
1196 btusb_stop_traffic(data);
1197 usb_kill_anchored_urbs(&data->tx_anchor);
1202 static void play_deferred(struct btusb_data *data)
1207 while ((urb = usb_get_from_anchor(&data->deferred))) {
1208 err = usb_submit_urb(urb, GFP_ATOMIC);
1212 data->tx_in_flight++;
1214 usb_scuttle_anchored_urbs(&data->deferred);
1217 static int btusb_resume(struct usb_interface *intf)
1219 struct btusb_data *data = usb_get_intfdata(intf);
1220 struct hci_dev *hdev = data->hdev;
1223 BT_DBG("intf %p", intf);
1225 if (--data->suspend_count)
1228 if (!test_bit(HCI_RUNNING, &hdev->flags))
1231 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1232 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1234 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1239 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1240 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1242 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1246 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1249 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1250 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1251 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1253 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1256 spin_lock_irq(&data->txlock);
1257 play_deferred(data);
1258 clear_bit(BTUSB_SUSPENDING, &data->flags);
1259 spin_unlock_irq(&data->txlock);
1260 schedule_work(&data->work);
1265 usb_scuttle_anchored_urbs(&data->deferred);
1267 spin_lock_irq(&data->txlock);
1268 clear_bit(BTUSB_SUSPENDING, &data->flags);
1269 spin_unlock_irq(&data->txlock);
1275 static struct usb_driver btusb_driver = {
1277 .probe = btusb_probe,
1278 .disconnect = btusb_disconnect,
1280 .suspend = btusb_suspend,
1281 .resume = btusb_resume,
1283 .id_table = btusb_table,
1284 .supports_autosuspend = 1,
1287 static int __init btusb_init(void)
1289 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1291 return usb_register(&btusb_driver);
1294 static void __exit btusb_exit(void)
1296 usb_deregister(&btusb_driver);
1299 module_init(btusb_init);
1300 module_exit(btusb_exit);
1302 module_param(ignore_dga, bool, 0644);
1303 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1305 module_param(ignore_csr, bool, 0644);
1306 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1308 module_param(ignore_sniffer, bool, 0644);
1309 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1311 module_param(disable_scofix, bool, 0644);
1312 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1314 module_param(force_scofix, bool, 0644);
1315 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1317 module_param(reset, bool, 0644);
1318 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1320 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1321 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1322 MODULE_VERSION(VERSION);
1323 MODULE_LICENSE("GPL");