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
58 #define BTUSB_INTEL_BOOT 0x200
60 static struct usb_device_id btusb_table[] = {
61 /* Generic Bluetooth USB device */
62 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
64 /* Apple-specific (Broadcom) devices */
65 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
67 /* MediaTek MT76x0E */
68 { USB_DEVICE(0x0e8d, 0x763f) },
70 /* Broadcom SoftSailing reporting vendor specific */
71 { USB_DEVICE(0x0a5c, 0x21e1) },
73 /* Apple MacBookPro 7,1 */
74 { USB_DEVICE(0x05ac, 0x8213) },
77 { USB_DEVICE(0x05ac, 0x8215) },
79 /* Apple MacBookPro6,2 */
80 { USB_DEVICE(0x05ac, 0x8218) },
82 /* Apple MacBookAir3,1, MacBookAir3,2 */
83 { USB_DEVICE(0x05ac, 0x821b) },
85 /* Apple MacBookAir4,1 */
86 { USB_DEVICE(0x05ac, 0x821f) },
88 /* Apple MacBookPro8,2 */
89 { USB_DEVICE(0x05ac, 0x821a) },
91 /* Apple MacMini5,1 */
92 { USB_DEVICE(0x05ac, 0x8281) },
94 /* AVM BlueFRITZ! USB v2.0 */
95 { USB_DEVICE(0x057c, 0x3800) },
97 /* Bluetooth Ultraport Module from IBM */
98 { USB_DEVICE(0x04bf, 0x030a) },
100 /* ALPS Modules with non-standard id */
101 { USB_DEVICE(0x044e, 0x3001) },
102 { USB_DEVICE(0x044e, 0x3002) },
104 /* Ericsson with non-standard id */
105 { USB_DEVICE(0x0bdb, 0x1002) },
107 /* Canyon CN-BTU1 with HID interfaces */
108 { USB_DEVICE(0x0c10, 0x0000) },
110 /* Broadcom BCM20702A0 */
111 { USB_DEVICE(0x0489, 0xe042) },
112 { USB_DEVICE(0x04ca, 0x2003) },
113 { USB_DEVICE(0x0b05, 0x17b5) },
114 { USB_DEVICE(0x0b05, 0x17cb) },
115 { USB_DEVICE(0x413c, 0x8197) },
117 /* Foxconn - Hon Hai */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
120 /* Broadcom devices with vendor specific id */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
123 /* ASUSTek Computer - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
126 /* Belkin F8065bf - Broadcom based */
127 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
129 /* IMC Networks - Broadcom based */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
132 /* Intel Bluetooth USB Bootloader (RAM module) */
133 { USB_DEVICE(0x8087, 0x0a5a),
134 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
136 { } /* Terminating entry */
139 MODULE_DEVICE_TABLE(usb, btusb_table);
141 static struct usb_device_id blacklist_table[] = {
142 /* CSR BlueCore devices */
143 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
145 /* Broadcom BCM2033 without firmware */
146 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
148 /* Atheros 3011 with sflash firmware */
149 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
150 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
151 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
152 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
153 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
154 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
156 /* Atheros AR9285 Malbec with sflash firmware */
157 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
159 /* Atheros 3012 with sflash firmware */
160 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
192 /* Atheros AR5BBU12 with sflash firmware */
193 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
195 /* Atheros AR5BBU12 with sflash firmware */
196 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
199 /* Broadcom BCM2035 */
200 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
201 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
202 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
204 /* Broadcom BCM2045 */
205 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
206 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
208 /* IBM/Lenovo ThinkPad with Broadcom chip */
209 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
210 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
212 /* HP laptop with Broadcom chip */
213 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
215 /* Dell laptop with Broadcom chip */
216 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
218 /* Dell Wireless 370 and 410 devices */
219 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
220 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
222 /* Belkin F8T012 and F8T013 devices */
223 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
224 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
226 /* Asus WL-BTD202 device */
227 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
229 /* Kensington Bluetooth USB adapter */
230 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
232 /* RTX Telecom based adapters with buggy SCO support */
233 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
234 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
236 /* CONWISE Technology based adapters with buggy SCO support */
237 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
239 /* Digianswer devices */
240 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
241 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
243 /* CSR BlueCore Bluetooth Sniffer */
244 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
246 /* Frontline ComProbe Bluetooth Sniffer */
247 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
249 { } /* Terminating entry */
252 #define BTUSB_MAX_ISOC_FRAMES 10
254 #define BTUSB_INTR_RUNNING 0
255 #define BTUSB_BULK_RUNNING 1
256 #define BTUSB_ISOC_RUNNING 2
257 #define BTUSB_SUSPENDING 3
258 #define BTUSB_DID_ISO_RESUME 4
261 struct hci_dev *hdev;
262 struct usb_device *udev;
263 struct usb_interface *intf;
264 struct usb_interface *isoc;
270 struct work_struct work;
271 struct work_struct waker;
273 struct usb_anchor tx_anchor;
274 struct usb_anchor intr_anchor;
275 struct usb_anchor bulk_anchor;
276 struct usb_anchor isoc_anchor;
277 struct usb_anchor deferred;
281 struct usb_endpoint_descriptor *intr_ep;
282 struct usb_endpoint_descriptor *bulk_tx_ep;
283 struct usb_endpoint_descriptor *bulk_rx_ep;
284 struct usb_endpoint_descriptor *isoc_tx_ep;
285 struct usb_endpoint_descriptor *isoc_rx_ep;
289 unsigned int sco_num;
294 static int inc_tx(struct btusb_data *data)
299 spin_lock_irqsave(&data->txlock, flags);
300 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
302 data->tx_in_flight++;
303 spin_unlock_irqrestore(&data->txlock, flags);
308 static void btusb_intr_complete(struct urb *urb)
310 struct hci_dev *hdev = urb->context;
311 struct btusb_data *data = hdev->driver_data;
314 BT_DBG("%s urb %p status %d count %d", hdev->name,
315 urb, urb->status, urb->actual_length);
317 if (!test_bit(HCI_RUNNING, &hdev->flags))
320 if (urb->status == 0) {
321 hdev->stat.byte_rx += urb->actual_length;
323 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
324 urb->transfer_buffer,
325 urb->actual_length) < 0) {
326 BT_ERR("%s corrupted event packet", hdev->name);
329 } else if (urb->status == -ENOENT) {
330 /* Avoid suspend failed when usb_kill_urb */
334 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
337 usb_mark_last_busy(data->udev);
338 usb_anchor_urb(urb, &data->intr_anchor);
340 err = usb_submit_urb(urb, GFP_ATOMIC);
342 /* -EPERM: urb is being killed;
343 * -ENODEV: device got disconnected */
344 if (err != -EPERM && err != -ENODEV)
345 BT_ERR("%s urb %p failed to resubmit (%d)",
346 hdev->name, urb, -err);
347 usb_unanchor_urb(urb);
351 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
353 struct btusb_data *data = hdev->driver_data;
359 BT_DBG("%s", hdev->name);
364 urb = usb_alloc_urb(0, mem_flags);
368 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
370 buf = kmalloc(size, mem_flags);
376 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
378 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
379 btusb_intr_complete, hdev,
380 data->intr_ep->bInterval);
382 urb->transfer_flags |= URB_FREE_BUFFER;
384 usb_anchor_urb(urb, &data->intr_anchor);
386 err = usb_submit_urb(urb, mem_flags);
388 BT_ERR("%s urb %p submission failed (%d)",
389 hdev->name, urb, -err);
390 usb_unanchor_urb(urb);
398 static void btusb_bulk_complete(struct urb *urb)
400 struct hci_dev *hdev = urb->context;
401 struct btusb_data *data = hdev->driver_data;
404 BT_DBG("%s urb %p status %d count %d", hdev->name,
405 urb, urb->status, urb->actual_length);
407 if (!test_bit(HCI_RUNNING, &hdev->flags))
410 if (urb->status == 0) {
411 hdev->stat.byte_rx += urb->actual_length;
413 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
414 urb->transfer_buffer,
415 urb->actual_length) < 0) {
416 BT_ERR("%s corrupted ACL packet", hdev->name);
419 } else if (urb->status == -ENOENT) {
420 /* Avoid suspend failed when usb_kill_urb */
424 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
427 usb_anchor_urb(urb, &data->bulk_anchor);
428 usb_mark_last_busy(data->udev);
430 err = usb_submit_urb(urb, GFP_ATOMIC);
432 /* -EPERM: urb is being killed;
433 * -ENODEV: device got disconnected */
434 if (err != -EPERM && err != -ENODEV)
435 BT_ERR("%s urb %p failed to resubmit (%d)",
436 hdev->name, urb, -err);
437 usb_unanchor_urb(urb);
441 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
443 struct btusb_data *data = hdev->driver_data;
447 int err, size = HCI_MAX_FRAME_SIZE;
449 BT_DBG("%s", hdev->name);
451 if (!data->bulk_rx_ep)
454 urb = usb_alloc_urb(0, mem_flags);
458 buf = kmalloc(size, mem_flags);
464 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
466 usb_fill_bulk_urb(urb, data->udev, pipe,
467 buf, size, btusb_bulk_complete, hdev);
469 urb->transfer_flags |= URB_FREE_BUFFER;
471 usb_mark_last_busy(data->udev);
472 usb_anchor_urb(urb, &data->bulk_anchor);
474 err = usb_submit_urb(urb, mem_flags);
476 BT_ERR("%s urb %p submission failed (%d)",
477 hdev->name, urb, -err);
478 usb_unanchor_urb(urb);
486 static void btusb_isoc_complete(struct urb *urb)
488 struct hci_dev *hdev = urb->context;
489 struct btusb_data *data = hdev->driver_data;
492 BT_DBG("%s urb %p status %d count %d", hdev->name,
493 urb, urb->status, urb->actual_length);
495 if (!test_bit(HCI_RUNNING, &hdev->flags))
498 if (urb->status == 0) {
499 for (i = 0; i < urb->number_of_packets; i++) {
500 unsigned int offset = urb->iso_frame_desc[i].offset;
501 unsigned int length = urb->iso_frame_desc[i].actual_length;
503 if (urb->iso_frame_desc[i].status)
506 hdev->stat.byte_rx += length;
508 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
509 urb->transfer_buffer + offset,
511 BT_ERR("%s corrupted SCO packet", hdev->name);
515 } else if (urb->status == -ENOENT) {
516 /* Avoid suspend failed when usb_kill_urb */
520 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
523 usb_anchor_urb(urb, &data->isoc_anchor);
525 err = usb_submit_urb(urb, GFP_ATOMIC);
527 /* -EPERM: urb is being killed;
528 * -ENODEV: device got disconnected */
529 if (err != -EPERM && err != -ENODEV)
530 BT_ERR("%s urb %p failed to resubmit (%d)",
531 hdev->name, urb, -err);
532 usb_unanchor_urb(urb);
536 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
540 BT_DBG("len %d mtu %d", len, mtu);
542 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
543 i++, offset += mtu, len -= mtu) {
544 urb->iso_frame_desc[i].offset = offset;
545 urb->iso_frame_desc[i].length = mtu;
548 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
549 urb->iso_frame_desc[i].offset = offset;
550 urb->iso_frame_desc[i].length = len;
554 urb->number_of_packets = i;
557 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
559 struct btusb_data *data = hdev->driver_data;
565 BT_DBG("%s", hdev->name);
567 if (!data->isoc_rx_ep)
570 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
574 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
575 BTUSB_MAX_ISOC_FRAMES;
577 buf = kmalloc(size, mem_flags);
583 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
585 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
586 hdev, data->isoc_rx_ep->bInterval);
588 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
590 __fill_isoc_descriptor(urb, size,
591 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
593 usb_anchor_urb(urb, &data->isoc_anchor);
595 err = usb_submit_urb(urb, mem_flags);
597 BT_ERR("%s urb %p submission failed (%d)",
598 hdev->name, urb, -err);
599 usb_unanchor_urb(urb);
607 static void btusb_tx_complete(struct urb *urb)
609 struct sk_buff *skb = urb->context;
610 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
611 struct btusb_data *data = hdev->driver_data;
613 BT_DBG("%s urb %p status %d count %d", hdev->name,
614 urb, urb->status, urb->actual_length);
616 if (!test_bit(HCI_RUNNING, &hdev->flags))
620 hdev->stat.byte_tx += urb->transfer_buffer_length;
625 spin_lock(&data->txlock);
626 data->tx_in_flight--;
627 spin_unlock(&data->txlock);
629 kfree(urb->setup_packet);
634 static void btusb_isoc_tx_complete(struct urb *urb)
636 struct sk_buff *skb = urb->context;
637 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
639 BT_DBG("%s urb %p status %d count %d", hdev->name,
640 urb, urb->status, urb->actual_length);
642 if (!test_bit(HCI_RUNNING, &hdev->flags))
646 hdev->stat.byte_tx += urb->transfer_buffer_length;
651 kfree(urb->setup_packet);
656 static int btusb_open(struct hci_dev *hdev)
658 struct btusb_data *data = hdev->driver_data;
661 BT_DBG("%s", hdev->name);
663 err = usb_autopm_get_interface(data->intf);
667 data->intf->needs_remote_wakeup = 1;
669 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
672 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
675 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
679 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
681 usb_kill_anchored_urbs(&data->intr_anchor);
685 set_bit(BTUSB_BULK_RUNNING, &data->flags);
686 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
689 usb_autopm_put_interface(data->intf);
693 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
694 clear_bit(HCI_RUNNING, &hdev->flags);
695 usb_autopm_put_interface(data->intf);
699 static void btusb_stop_traffic(struct btusb_data *data)
701 usb_kill_anchored_urbs(&data->intr_anchor);
702 usb_kill_anchored_urbs(&data->bulk_anchor);
703 usb_kill_anchored_urbs(&data->isoc_anchor);
706 static int btusb_close(struct hci_dev *hdev)
708 struct btusb_data *data = hdev->driver_data;
711 BT_DBG("%s", hdev->name);
713 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
716 cancel_work_sync(&data->work);
717 cancel_work_sync(&data->waker);
719 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
720 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
721 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
723 btusb_stop_traffic(data);
724 err = usb_autopm_get_interface(data->intf);
728 data->intf->needs_remote_wakeup = 0;
729 usb_autopm_put_interface(data->intf);
732 usb_scuttle_anchored_urbs(&data->deferred);
736 static int btusb_flush(struct hci_dev *hdev)
738 struct btusb_data *data = hdev->driver_data;
740 BT_DBG("%s", hdev->name);
742 usb_kill_anchored_urbs(&data->tx_anchor);
747 static int btusb_send_frame(struct sk_buff *skb)
749 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
750 struct btusb_data *data = hdev->driver_data;
751 struct usb_ctrlrequest *dr;
756 BT_DBG("%s", hdev->name);
758 if (!test_bit(HCI_RUNNING, &hdev->flags))
761 switch (bt_cb(skb)->pkt_type) {
762 case HCI_COMMAND_PKT:
763 urb = usb_alloc_urb(0, GFP_ATOMIC);
767 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
773 dr->bRequestType = data->cmdreq_type;
777 dr->wLength = __cpu_to_le16(skb->len);
779 pipe = usb_sndctrlpipe(data->udev, 0x00);
781 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
782 skb->data, skb->len, btusb_tx_complete, skb);
787 case HCI_ACLDATA_PKT:
788 if (!data->bulk_tx_ep)
791 urb = usb_alloc_urb(0, GFP_ATOMIC);
795 pipe = usb_sndbulkpipe(data->udev,
796 data->bulk_tx_ep->bEndpointAddress);
798 usb_fill_bulk_urb(urb, data->udev, pipe,
799 skb->data, skb->len, btusb_tx_complete, skb);
804 case HCI_SCODATA_PKT:
805 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
808 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
812 pipe = usb_sndisocpipe(data->udev,
813 data->isoc_tx_ep->bEndpointAddress);
815 usb_fill_int_urb(urb, data->udev, pipe,
816 skb->data, skb->len, btusb_isoc_tx_complete,
817 skb, data->isoc_tx_ep->bInterval);
819 urb->transfer_flags = URB_ISO_ASAP;
821 __fill_isoc_descriptor(urb, skb->len,
822 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
833 usb_anchor_urb(urb, &data->deferred);
834 schedule_work(&data->waker);
840 usb_anchor_urb(urb, &data->tx_anchor);
842 err = usb_submit_urb(urb, GFP_ATOMIC);
844 BT_ERR("%s urb %p submission failed", hdev->name, urb);
845 kfree(urb->setup_packet);
846 usb_unanchor_urb(urb);
848 usb_mark_last_busy(data->udev);
856 static void btusb_destruct(struct hci_dev *hdev)
858 struct btusb_data *data = hdev->driver_data;
860 BT_DBG("%s", hdev->name);
865 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
867 struct btusb_data *data = hdev->driver_data;
869 BT_DBG("%s evt %d", hdev->name, evt);
871 if (hdev->conn_hash.sco_num != data->sco_num) {
872 data->sco_num = hdev->conn_hash.sco_num;
873 schedule_work(&data->work);
877 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
879 struct btusb_data *data = hdev->driver_data;
880 struct usb_interface *intf = data->isoc;
881 struct usb_endpoint_descriptor *ep_desc;
887 err = usb_set_interface(data->udev, 1, altsetting);
889 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
893 data->isoc_altsetting = altsetting;
895 data->isoc_tx_ep = NULL;
896 data->isoc_rx_ep = NULL;
898 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
899 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
901 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
902 data->isoc_tx_ep = ep_desc;
906 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
907 data->isoc_rx_ep = ep_desc;
912 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
913 BT_ERR("%s invalid SCO descriptors", hdev->name);
920 static void btusb_work(struct work_struct *work)
922 struct btusb_data *data = container_of(work, struct btusb_data, work);
923 struct hci_dev *hdev = data->hdev;
926 if (hdev->conn_hash.sco_num > 0) {
927 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
928 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
930 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
931 usb_kill_anchored_urbs(&data->isoc_anchor);
935 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
937 if (data->isoc_altsetting != 2) {
938 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
939 usb_kill_anchored_urbs(&data->isoc_anchor);
941 if (__set_isoc_interface(hdev, 2) < 0)
945 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
946 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
947 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
949 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
952 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
953 usb_kill_anchored_urbs(&data->isoc_anchor);
955 __set_isoc_interface(hdev, 0);
956 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
957 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
961 static void btusb_waker(struct work_struct *work)
963 struct btusb_data *data = container_of(work, struct btusb_data, waker);
966 err = usb_autopm_get_interface(data->intf);
970 usb_autopm_put_interface(data->intf);
973 static int btusb_probe(struct usb_interface *intf,
974 const struct usb_device_id *id)
976 struct usb_endpoint_descriptor *ep_desc;
977 struct btusb_data *data;
978 struct hci_dev *hdev;
981 BT_DBG("intf %p id %p", intf, id);
983 /* interface numbers are hardcoded in the spec */
984 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
987 if (!id->driver_info) {
988 const struct usb_device_id *match;
989 match = usb_match_id(intf, blacklist_table);
994 if (id->driver_info == BTUSB_IGNORE)
997 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1000 if (ignore_csr && id->driver_info & BTUSB_CSR)
1003 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1006 if (id->driver_info & BTUSB_ATH3012) {
1007 struct usb_device *udev = interface_to_usbdev(intf);
1009 /* Old firmware would otherwise let ath3k driver load
1010 * patch and sysconfig files */
1011 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1015 data = kzalloc(sizeof(*data), GFP_KERNEL);
1019 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1020 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1022 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1023 data->intr_ep = ep_desc;
1027 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1028 data->bulk_tx_ep = ep_desc;
1032 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1033 data->bulk_rx_ep = ep_desc;
1038 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1043 data->cmdreq_type = USB_TYPE_CLASS;
1045 data->udev = interface_to_usbdev(intf);
1048 spin_lock_init(&data->lock);
1050 INIT_WORK(&data->work, btusb_work);
1051 INIT_WORK(&data->waker, btusb_waker);
1052 spin_lock_init(&data->txlock);
1054 init_usb_anchor(&data->tx_anchor);
1055 init_usb_anchor(&data->intr_anchor);
1056 init_usb_anchor(&data->bulk_anchor);
1057 init_usb_anchor(&data->isoc_anchor);
1058 init_usb_anchor(&data->deferred);
1060 hdev = hci_alloc_dev();
1066 hdev->bus = HCI_USB;
1067 hdev->driver_data = data;
1071 SET_HCIDEV_DEV(hdev, &intf->dev);
1073 hdev->open = btusb_open;
1074 hdev->close = btusb_close;
1075 hdev->flush = btusb_flush;
1076 hdev->send = btusb_send_frame;
1077 hdev->destruct = btusb_destruct;
1078 hdev->notify = btusb_notify;
1080 hdev->owner = THIS_MODULE;
1082 if (id->driver_info & BTUSB_INTEL_BOOT)
1083 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1085 /* Interface numbers are hardcoded in the specification */
1086 data->isoc = usb_ifnum_to_if(data->udev, 1);
1089 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1091 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1092 if (!disable_scofix)
1093 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1096 if (id->driver_info & BTUSB_BROKEN_ISOC)
1099 if (id->driver_info & BTUSB_DIGIANSWER) {
1100 data->cmdreq_type = USB_TYPE_VENDOR;
1101 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1104 if (id->driver_info & BTUSB_CSR) {
1105 struct usb_device *udev = data->udev;
1107 /* Old firmware would otherwise execute USB reset */
1108 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1109 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1112 if (id->driver_info & BTUSB_SNIFFER) {
1113 struct usb_device *udev = data->udev;
1115 /* New sniffer firmware has crippled HCI interface */
1116 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1117 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1122 if (id->driver_info & BTUSB_BCM92035) {
1123 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1124 struct sk_buff *skb;
1126 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1128 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1129 skb_queue_tail(&hdev->driver_init, skb);
1134 err = usb_driver_claim_interface(&btusb_driver,
1143 err = hci_register_dev(hdev);
1150 usb_set_intfdata(intf, data);
1155 static void btusb_disconnect(struct usb_interface *intf)
1157 struct btusb_data *data = usb_get_intfdata(intf);
1158 struct hci_dev *hdev;
1160 BT_DBG("intf %p", intf);
1167 __hci_dev_hold(hdev);
1169 usb_set_intfdata(data->intf, NULL);
1172 usb_set_intfdata(data->isoc, NULL);
1174 hci_unregister_dev(hdev);
1176 if (intf == data->isoc)
1177 usb_driver_release_interface(&btusb_driver, data->intf);
1178 else if (data->isoc)
1179 usb_driver_release_interface(&btusb_driver, data->isoc);
1181 __hci_dev_put(hdev);
1187 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1189 struct btusb_data *data = usb_get_intfdata(intf);
1191 BT_DBG("intf %p", intf);
1193 if (data->suspend_count++)
1196 spin_lock_irq(&data->txlock);
1197 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1198 set_bit(BTUSB_SUSPENDING, &data->flags);
1199 spin_unlock_irq(&data->txlock);
1201 spin_unlock_irq(&data->txlock);
1202 data->suspend_count--;
1206 cancel_work_sync(&data->work);
1208 btusb_stop_traffic(data);
1209 usb_kill_anchored_urbs(&data->tx_anchor);
1214 static void play_deferred(struct btusb_data *data)
1219 while ((urb = usb_get_from_anchor(&data->deferred))) {
1220 err = usb_submit_urb(urb, GFP_ATOMIC);
1224 data->tx_in_flight++;
1226 usb_scuttle_anchored_urbs(&data->deferred);
1229 static int btusb_resume(struct usb_interface *intf)
1231 struct btusb_data *data = usb_get_intfdata(intf);
1232 struct hci_dev *hdev = data->hdev;
1235 BT_DBG("intf %p", intf);
1237 if (--data->suspend_count)
1240 if (!test_bit(HCI_RUNNING, &hdev->flags))
1243 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1244 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1246 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1251 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1252 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1254 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1258 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1261 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1262 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1263 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1265 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1268 spin_lock_irq(&data->txlock);
1269 play_deferred(data);
1270 clear_bit(BTUSB_SUSPENDING, &data->flags);
1271 spin_unlock_irq(&data->txlock);
1272 schedule_work(&data->work);
1277 usb_scuttle_anchored_urbs(&data->deferred);
1279 spin_lock_irq(&data->txlock);
1280 clear_bit(BTUSB_SUSPENDING, &data->flags);
1281 spin_unlock_irq(&data->txlock);
1287 static struct usb_driver btusb_driver = {
1289 .probe = btusb_probe,
1290 .disconnect = btusb_disconnect,
1292 .suspend = btusb_suspend,
1293 .resume = btusb_resume,
1295 .id_table = btusb_table,
1296 .supports_autosuspend = 1,
1299 static int __init btusb_init(void)
1301 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1303 return usb_register(&btusb_driver);
1306 static void __exit btusb_exit(void)
1308 usb_deregister(&btusb_driver);
1311 module_init(btusb_init);
1312 module_exit(btusb_exit);
1314 module_param(ignore_dga, bool, 0644);
1315 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1317 module_param(ignore_csr, bool, 0644);
1318 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1320 module_param(ignore_sniffer, bool, 0644);
1321 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1323 module_param(disable_scofix, bool, 0644);
1324 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1326 module_param(force_scofix, bool, 0644);
1327 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1329 module_param(reset, bool, 0644);
1330 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1332 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1333 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1334 MODULE_VERSION(VERSION);
1335 MODULE_LICENSE("GPL");