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 /* Broadcom SoftSailing reporting vendor specific */
67 { USB_DEVICE(0x0a5c, 0x21e1) },
69 /* Apple MacBookPro 7,1 */
70 { USB_DEVICE(0x05ac, 0x8213) },
73 { USB_DEVICE(0x05ac, 0x8215) },
75 /* Apple MacBookPro6,2 */
76 { USB_DEVICE(0x05ac, 0x8218) },
78 /* Apple MacBookAir3,1, MacBookAir3,2 */
79 { USB_DEVICE(0x05ac, 0x821b) },
81 /* Apple MacBookAir4,1 */
82 { USB_DEVICE(0x05ac, 0x821f) },
84 /* Apple MacBookPro8,2 */
85 { USB_DEVICE(0x05ac, 0x821a) },
87 /* Apple MacMini5,1 */
88 { USB_DEVICE(0x05ac, 0x8281) },
90 /* AVM BlueFRITZ! USB v2.0 */
91 { USB_DEVICE(0x057c, 0x3800) },
93 /* Bluetooth Ultraport Module from IBM */
94 { USB_DEVICE(0x04bf, 0x030a) },
96 /* ALPS Modules with non-standard id */
97 { USB_DEVICE(0x044e, 0x3001) },
98 { USB_DEVICE(0x044e, 0x3002) },
100 /* Ericsson with non-standard id */
101 { USB_DEVICE(0x0bdb, 0x1002) },
103 /* Canyon CN-BTU1 with HID interfaces */
104 { USB_DEVICE(0x0c10, 0x0000) },
106 /* Broadcom BCM20702A0 */
107 { USB_DEVICE(0x0b05, 0x17b5) },
108 { USB_DEVICE(0x04ca, 0x2003) },
109 { USB_DEVICE(0x0489, 0xe042) },
110 { USB_DEVICE(0x413c, 0x8197) },
112 /* Foxconn - Hon Hai */
113 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
115 /*Broadcom devices with vendor specific id */
116 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
118 { } /* Terminating entry */
121 MODULE_DEVICE_TABLE(usb, btusb_table);
123 static struct usb_device_id blacklist_table[] = {
124 /* CSR BlueCore devices */
125 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
127 /* Broadcom BCM2033 without firmware */
128 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
130 /* Atheros 3011 with sflash firmware */
131 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
132 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
133 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
134 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
135 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
136 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
138 /* Atheros AR9285 Malbec with sflash firmware */
139 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
141 /* Atheros 3012 with sflash firmware */
142 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
160 /* Atheros AR5BBU12 with sflash firmware */
161 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
163 /* Atheros AR5BBU12 with sflash firmware */
164 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
167 /* Broadcom BCM2035 */
168 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
169 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
170 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
172 /* Broadcom BCM2045 */
173 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
174 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
176 /* IBM/Lenovo ThinkPad with Broadcom chip */
177 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
178 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
180 /* HP laptop with Broadcom chip */
181 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
183 /* Dell laptop with Broadcom chip */
184 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
186 /* Dell Wireless 370 and 410 devices */
187 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
188 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
190 /* Belkin F8T012 and F8T013 devices */
191 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
192 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
194 /* Asus WL-BTD202 device */
195 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
197 /* Kensington Bluetooth USB adapter */
198 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
200 /* RTX Telecom based adapters with buggy SCO support */
201 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
202 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
204 /* CONWISE Technology based adapters with buggy SCO support */
205 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
207 /* Digianswer devices */
208 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
209 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
211 /* CSR BlueCore Bluetooth Sniffer */
212 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
214 /* Frontline ComProbe Bluetooth Sniffer */
215 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
217 { } /* Terminating entry */
220 #define BTUSB_MAX_ISOC_FRAMES 10
222 #define BTUSB_INTR_RUNNING 0
223 #define BTUSB_BULK_RUNNING 1
224 #define BTUSB_ISOC_RUNNING 2
225 #define BTUSB_SUSPENDING 3
226 #define BTUSB_DID_ISO_RESUME 4
229 struct hci_dev *hdev;
230 struct usb_device *udev;
231 struct usb_interface *intf;
232 struct usb_interface *isoc;
238 struct work_struct work;
239 struct work_struct waker;
241 struct usb_anchor tx_anchor;
242 struct usb_anchor intr_anchor;
243 struct usb_anchor bulk_anchor;
244 struct usb_anchor isoc_anchor;
245 struct usb_anchor deferred;
249 struct usb_endpoint_descriptor *intr_ep;
250 struct usb_endpoint_descriptor *bulk_tx_ep;
251 struct usb_endpoint_descriptor *bulk_rx_ep;
252 struct usb_endpoint_descriptor *isoc_tx_ep;
253 struct usb_endpoint_descriptor *isoc_rx_ep;
257 unsigned int sco_num;
262 static int inc_tx(struct btusb_data *data)
267 spin_lock_irqsave(&data->txlock, flags);
268 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
270 data->tx_in_flight++;
271 spin_unlock_irqrestore(&data->txlock, flags);
276 static void btusb_intr_complete(struct urb *urb)
278 struct hci_dev *hdev = urb->context;
279 struct btusb_data *data = hdev->driver_data;
282 BT_DBG("%s urb %p status %d count %d", hdev->name,
283 urb, urb->status, urb->actual_length);
285 if (!test_bit(HCI_RUNNING, &hdev->flags))
288 if (urb->status == 0) {
289 hdev->stat.byte_rx += urb->actual_length;
291 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
292 urb->transfer_buffer,
293 urb->actual_length) < 0) {
294 BT_ERR("%s corrupted event packet", hdev->name);
299 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
302 usb_mark_last_busy(data->udev);
303 usb_anchor_urb(urb, &data->intr_anchor);
305 err = usb_submit_urb(urb, GFP_ATOMIC);
307 /* -EPERM: urb is being killed;
308 * -ENODEV: device got disconnected */
309 if (err != -EPERM && err != -ENODEV)
310 BT_ERR("%s urb %p failed to resubmit (%d)",
311 hdev->name, urb, -err);
312 usb_unanchor_urb(urb);
316 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
318 struct btusb_data *data = hdev->driver_data;
324 BT_DBG("%s", hdev->name);
329 urb = usb_alloc_urb(0, mem_flags);
333 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
335 buf = kmalloc(size, mem_flags);
341 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
343 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
344 btusb_intr_complete, hdev,
345 data->intr_ep->bInterval);
347 urb->transfer_flags |= URB_FREE_BUFFER;
349 usb_anchor_urb(urb, &data->intr_anchor);
351 err = usb_submit_urb(urb, mem_flags);
353 BT_ERR("%s urb %p submission failed (%d)",
354 hdev->name, urb, -err);
355 usb_unanchor_urb(urb);
363 static void btusb_bulk_complete(struct urb *urb)
365 struct hci_dev *hdev = urb->context;
366 struct btusb_data *data = hdev->driver_data;
369 BT_DBG("%s urb %p status %d count %d", hdev->name,
370 urb, urb->status, urb->actual_length);
372 if (!test_bit(HCI_RUNNING, &hdev->flags))
375 if (urb->status == 0) {
376 hdev->stat.byte_rx += urb->actual_length;
378 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
379 urb->transfer_buffer,
380 urb->actual_length) < 0) {
381 BT_ERR("%s corrupted ACL packet", hdev->name);
386 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
389 usb_anchor_urb(urb, &data->bulk_anchor);
390 usb_mark_last_busy(data->udev);
392 err = usb_submit_urb(urb, GFP_ATOMIC);
394 /* -EPERM: urb is being killed;
395 * -ENODEV: device got disconnected */
396 if (err != -EPERM && err != -ENODEV)
397 BT_ERR("%s urb %p failed to resubmit (%d)",
398 hdev->name, urb, -err);
399 usb_unanchor_urb(urb);
403 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
405 struct btusb_data *data = hdev->driver_data;
409 int err, size = HCI_MAX_FRAME_SIZE;
411 BT_DBG("%s", hdev->name);
413 if (!data->bulk_rx_ep)
416 urb = usb_alloc_urb(0, mem_flags);
420 buf = kmalloc(size, mem_flags);
426 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
428 usb_fill_bulk_urb(urb, data->udev, pipe,
429 buf, size, btusb_bulk_complete, hdev);
431 urb->transfer_flags |= URB_FREE_BUFFER;
433 usb_mark_last_busy(data->udev);
434 usb_anchor_urb(urb, &data->bulk_anchor);
436 err = usb_submit_urb(urb, mem_flags);
438 BT_ERR("%s urb %p submission failed (%d)",
439 hdev->name, urb, -err);
440 usb_unanchor_urb(urb);
448 static void btusb_isoc_complete(struct urb *urb)
450 struct hci_dev *hdev = urb->context;
451 struct btusb_data *data = hdev->driver_data;
454 BT_DBG("%s urb %p status %d count %d", hdev->name,
455 urb, urb->status, urb->actual_length);
457 if (!test_bit(HCI_RUNNING, &hdev->flags))
460 if (urb->status == 0) {
461 for (i = 0; i < urb->number_of_packets; i++) {
462 unsigned int offset = urb->iso_frame_desc[i].offset;
463 unsigned int length = urb->iso_frame_desc[i].actual_length;
465 if (urb->iso_frame_desc[i].status)
468 hdev->stat.byte_rx += length;
470 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
471 urb->transfer_buffer + offset,
473 BT_ERR("%s corrupted SCO packet", hdev->name);
479 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
482 usb_anchor_urb(urb, &data->isoc_anchor);
484 err = usb_submit_urb(urb, GFP_ATOMIC);
486 /* -EPERM: urb is being killed;
487 * -ENODEV: device got disconnected */
488 if (err != -EPERM && err != -ENODEV)
489 BT_ERR("%s urb %p failed to resubmit (%d)",
490 hdev->name, urb, -err);
491 usb_unanchor_urb(urb);
495 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
499 BT_DBG("len %d mtu %d", len, mtu);
501 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
502 i++, offset += mtu, len -= mtu) {
503 urb->iso_frame_desc[i].offset = offset;
504 urb->iso_frame_desc[i].length = mtu;
507 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
508 urb->iso_frame_desc[i].offset = offset;
509 urb->iso_frame_desc[i].length = len;
513 urb->number_of_packets = i;
516 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
518 struct btusb_data *data = hdev->driver_data;
524 BT_DBG("%s", hdev->name);
526 if (!data->isoc_rx_ep)
529 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
533 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
534 BTUSB_MAX_ISOC_FRAMES;
536 buf = kmalloc(size, mem_flags);
542 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
544 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
545 hdev, data->isoc_rx_ep->bInterval);
547 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
549 __fill_isoc_descriptor(urb, size,
550 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
552 usb_anchor_urb(urb, &data->isoc_anchor);
554 err = usb_submit_urb(urb, mem_flags);
556 BT_ERR("%s urb %p submission failed (%d)",
557 hdev->name, urb, -err);
558 usb_unanchor_urb(urb);
566 static void btusb_tx_complete(struct urb *urb)
568 struct sk_buff *skb = urb->context;
569 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
570 struct btusb_data *data = hdev->driver_data;
572 BT_DBG("%s urb %p status %d count %d", hdev->name,
573 urb, urb->status, urb->actual_length);
575 if (!test_bit(HCI_RUNNING, &hdev->flags))
579 hdev->stat.byte_tx += urb->transfer_buffer_length;
584 spin_lock(&data->txlock);
585 data->tx_in_flight--;
586 spin_unlock(&data->txlock);
588 kfree(urb->setup_packet);
593 static void btusb_isoc_tx_complete(struct urb *urb)
595 struct sk_buff *skb = urb->context;
596 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
598 BT_DBG("%s urb %p status %d count %d", hdev->name,
599 urb, urb->status, urb->actual_length);
601 if (!test_bit(HCI_RUNNING, &hdev->flags))
605 hdev->stat.byte_tx += urb->transfer_buffer_length;
610 kfree(urb->setup_packet);
615 static int btusb_open(struct hci_dev *hdev)
617 struct btusb_data *data = hdev->driver_data;
620 BT_DBG("%s", hdev->name);
622 err = usb_autopm_get_interface(data->intf);
626 data->intf->needs_remote_wakeup = 1;
628 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
631 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
634 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
638 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
640 usb_kill_anchored_urbs(&data->intr_anchor);
644 set_bit(BTUSB_BULK_RUNNING, &data->flags);
645 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
648 usb_autopm_put_interface(data->intf);
652 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
653 clear_bit(HCI_RUNNING, &hdev->flags);
654 usb_autopm_put_interface(data->intf);
658 static void btusb_stop_traffic(struct btusb_data *data)
660 usb_kill_anchored_urbs(&data->intr_anchor);
661 usb_kill_anchored_urbs(&data->bulk_anchor);
662 usb_kill_anchored_urbs(&data->isoc_anchor);
665 static int btusb_close(struct hci_dev *hdev)
667 struct btusb_data *data = hdev->driver_data;
670 BT_DBG("%s", hdev->name);
672 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
675 cancel_work_sync(&data->work);
676 cancel_work_sync(&data->waker);
678 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
679 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
680 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
682 btusb_stop_traffic(data);
683 err = usb_autopm_get_interface(data->intf);
687 data->intf->needs_remote_wakeup = 0;
688 usb_autopm_put_interface(data->intf);
691 usb_scuttle_anchored_urbs(&data->deferred);
695 static int btusb_flush(struct hci_dev *hdev)
697 struct btusb_data *data = hdev->driver_data;
699 BT_DBG("%s", hdev->name);
701 usb_kill_anchored_urbs(&data->tx_anchor);
706 static int btusb_send_frame(struct sk_buff *skb)
708 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
709 struct btusb_data *data = hdev->driver_data;
710 struct usb_ctrlrequest *dr;
715 BT_DBG("%s", hdev->name);
717 if (!test_bit(HCI_RUNNING, &hdev->flags))
720 switch (bt_cb(skb)->pkt_type) {
721 case HCI_COMMAND_PKT:
722 urb = usb_alloc_urb(0, GFP_ATOMIC);
726 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
732 dr->bRequestType = data->cmdreq_type;
736 dr->wLength = __cpu_to_le16(skb->len);
738 pipe = usb_sndctrlpipe(data->udev, 0x00);
740 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
741 skb->data, skb->len, btusb_tx_complete, skb);
746 case HCI_ACLDATA_PKT:
747 if (!data->bulk_tx_ep)
750 urb = usb_alloc_urb(0, GFP_ATOMIC);
754 pipe = usb_sndbulkpipe(data->udev,
755 data->bulk_tx_ep->bEndpointAddress);
757 usb_fill_bulk_urb(urb, data->udev, pipe,
758 skb->data, skb->len, btusb_tx_complete, skb);
763 case HCI_SCODATA_PKT:
764 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
767 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
771 pipe = usb_sndisocpipe(data->udev,
772 data->isoc_tx_ep->bEndpointAddress);
774 usb_fill_int_urb(urb, data->udev, pipe,
775 skb->data, skb->len, btusb_isoc_tx_complete,
776 skb, data->isoc_tx_ep->bInterval);
778 urb->transfer_flags = URB_ISO_ASAP;
780 __fill_isoc_descriptor(urb, skb->len,
781 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
792 usb_anchor_urb(urb, &data->deferred);
793 schedule_work(&data->waker);
799 usb_anchor_urb(urb, &data->tx_anchor);
801 err = usb_submit_urb(urb, GFP_ATOMIC);
803 BT_ERR("%s urb %p submission failed", hdev->name, urb);
804 kfree(urb->setup_packet);
805 usb_unanchor_urb(urb);
807 usb_mark_last_busy(data->udev);
815 static void btusb_destruct(struct hci_dev *hdev)
817 struct btusb_data *data = hdev->driver_data;
819 BT_DBG("%s", hdev->name);
824 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
826 struct btusb_data *data = hdev->driver_data;
828 BT_DBG("%s evt %d", hdev->name, evt);
830 if (hdev->conn_hash.sco_num != data->sco_num) {
831 data->sco_num = hdev->conn_hash.sco_num;
832 schedule_work(&data->work);
836 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
838 struct btusb_data *data = hdev->driver_data;
839 struct usb_interface *intf = data->isoc;
840 struct usb_endpoint_descriptor *ep_desc;
846 err = usb_set_interface(data->udev, 1, altsetting);
848 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
852 data->isoc_altsetting = altsetting;
854 data->isoc_tx_ep = NULL;
855 data->isoc_rx_ep = NULL;
857 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
858 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
860 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
861 data->isoc_tx_ep = ep_desc;
865 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
866 data->isoc_rx_ep = ep_desc;
871 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
872 BT_ERR("%s invalid SCO descriptors", hdev->name);
879 static void btusb_work(struct work_struct *work)
881 struct btusb_data *data = container_of(work, struct btusb_data, work);
882 struct hci_dev *hdev = data->hdev;
885 if (hdev->conn_hash.sco_num > 0) {
886 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
887 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
889 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
890 usb_kill_anchored_urbs(&data->isoc_anchor);
894 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
896 if (data->isoc_altsetting != 2) {
897 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
898 usb_kill_anchored_urbs(&data->isoc_anchor);
900 if (__set_isoc_interface(hdev, 2) < 0)
904 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
905 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
906 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
908 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
911 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
912 usb_kill_anchored_urbs(&data->isoc_anchor);
914 __set_isoc_interface(hdev, 0);
915 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
916 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
920 static void btusb_waker(struct work_struct *work)
922 struct btusb_data *data = container_of(work, struct btusb_data, waker);
925 err = usb_autopm_get_interface(data->intf);
929 usb_autopm_put_interface(data->intf);
932 static int btusb_probe(struct usb_interface *intf,
933 const struct usb_device_id *id)
935 struct usb_endpoint_descriptor *ep_desc;
936 struct btusb_data *data;
937 struct hci_dev *hdev;
940 BT_DBG("intf %p id %p", intf, id);
942 /* interface numbers are hardcoded in the spec */
943 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
946 if (!id->driver_info) {
947 const struct usb_device_id *match;
948 match = usb_match_id(intf, blacklist_table);
953 if (id->driver_info == BTUSB_IGNORE)
956 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
959 if (ignore_csr && id->driver_info & BTUSB_CSR)
962 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
965 if (id->driver_info & BTUSB_ATH3012) {
966 struct usb_device *udev = interface_to_usbdev(intf);
968 /* Old firmware would otherwise let ath3k driver load
969 * patch and sysconfig files */
970 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
974 data = kzalloc(sizeof(*data), GFP_KERNEL);
978 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
979 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
981 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
982 data->intr_ep = ep_desc;
986 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
987 data->bulk_tx_ep = ep_desc;
991 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
992 data->bulk_rx_ep = ep_desc;
997 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1002 data->cmdreq_type = USB_TYPE_CLASS;
1004 data->udev = interface_to_usbdev(intf);
1007 spin_lock_init(&data->lock);
1009 INIT_WORK(&data->work, btusb_work);
1010 INIT_WORK(&data->waker, btusb_waker);
1011 spin_lock_init(&data->txlock);
1013 init_usb_anchor(&data->tx_anchor);
1014 init_usb_anchor(&data->intr_anchor);
1015 init_usb_anchor(&data->bulk_anchor);
1016 init_usb_anchor(&data->isoc_anchor);
1017 init_usb_anchor(&data->deferred);
1019 hdev = hci_alloc_dev();
1025 hdev->bus = HCI_USB;
1026 hdev->driver_data = data;
1030 SET_HCIDEV_DEV(hdev, &intf->dev);
1032 hdev->open = btusb_open;
1033 hdev->close = btusb_close;
1034 hdev->flush = btusb_flush;
1035 hdev->send = btusb_send_frame;
1036 hdev->destruct = btusb_destruct;
1037 hdev->notify = btusb_notify;
1039 hdev->owner = THIS_MODULE;
1041 /* Interface numbers are hardcoded in the specification */
1042 data->isoc = usb_ifnum_to_if(data->udev, 1);
1045 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1047 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1048 if (!disable_scofix)
1049 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1052 if (id->driver_info & BTUSB_BROKEN_ISOC)
1055 if (id->driver_info & BTUSB_DIGIANSWER) {
1056 data->cmdreq_type = USB_TYPE_VENDOR;
1057 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1060 if (id->driver_info & BTUSB_CSR) {
1061 struct usb_device *udev = data->udev;
1063 /* Old firmware would otherwise execute USB reset */
1064 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1065 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1068 if (id->driver_info & BTUSB_SNIFFER) {
1069 struct usb_device *udev = data->udev;
1071 /* New sniffer firmware has crippled HCI interface */
1072 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1073 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1078 if (id->driver_info & BTUSB_BCM92035) {
1079 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1080 struct sk_buff *skb;
1082 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1084 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1085 skb_queue_tail(&hdev->driver_init, skb);
1090 err = usb_driver_claim_interface(&btusb_driver,
1099 err = hci_register_dev(hdev);
1106 usb_set_intfdata(intf, data);
1111 static void btusb_disconnect(struct usb_interface *intf)
1113 struct btusb_data *data = usb_get_intfdata(intf);
1114 struct hci_dev *hdev;
1116 BT_DBG("intf %p", intf);
1123 __hci_dev_hold(hdev);
1125 usb_set_intfdata(data->intf, NULL);
1128 usb_set_intfdata(data->isoc, NULL);
1130 hci_unregister_dev(hdev);
1132 if (intf == data->isoc)
1133 usb_driver_release_interface(&btusb_driver, data->intf);
1134 else if (data->isoc)
1135 usb_driver_release_interface(&btusb_driver, data->isoc);
1137 __hci_dev_put(hdev);
1143 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1145 struct btusb_data *data = usb_get_intfdata(intf);
1147 BT_DBG("intf %p", intf);
1149 if (data->suspend_count++)
1152 spin_lock_irq(&data->txlock);
1153 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1154 set_bit(BTUSB_SUSPENDING, &data->flags);
1155 spin_unlock_irq(&data->txlock);
1157 spin_unlock_irq(&data->txlock);
1158 data->suspend_count--;
1162 cancel_work_sync(&data->work);
1164 btusb_stop_traffic(data);
1165 usb_kill_anchored_urbs(&data->tx_anchor);
1170 static void play_deferred(struct btusb_data *data)
1175 while ((urb = usb_get_from_anchor(&data->deferred))) {
1176 err = usb_submit_urb(urb, GFP_ATOMIC);
1180 data->tx_in_flight++;
1182 usb_scuttle_anchored_urbs(&data->deferred);
1185 static int btusb_resume(struct usb_interface *intf)
1187 struct btusb_data *data = usb_get_intfdata(intf);
1188 struct hci_dev *hdev = data->hdev;
1191 BT_DBG("intf %p", intf);
1193 if (--data->suspend_count)
1196 if (!test_bit(HCI_RUNNING, &hdev->flags))
1199 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1200 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1202 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1207 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1208 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1210 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1214 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1217 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1218 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1219 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1221 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1224 spin_lock_irq(&data->txlock);
1225 play_deferred(data);
1226 clear_bit(BTUSB_SUSPENDING, &data->flags);
1227 spin_unlock_irq(&data->txlock);
1228 schedule_work(&data->work);
1233 usb_scuttle_anchored_urbs(&data->deferred);
1235 spin_lock_irq(&data->txlock);
1236 clear_bit(BTUSB_SUSPENDING, &data->flags);
1237 spin_unlock_irq(&data->txlock);
1243 static struct usb_driver btusb_driver = {
1245 .probe = btusb_probe,
1246 .disconnect = btusb_disconnect,
1248 .suspend = btusb_suspend,
1249 .resume = btusb_resume,
1251 .id_table = btusb_table,
1252 .supports_autosuspend = 1,
1255 static int __init btusb_init(void)
1257 BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1259 return usb_register(&btusb_driver);
1262 static void __exit btusb_exit(void)
1264 usb_deregister(&btusb_driver);
1267 module_init(btusb_init);
1268 module_exit(btusb_exit);
1270 module_param(ignore_dga, bool, 0644);
1271 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1273 module_param(ignore_csr, bool, 0644);
1274 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1276 module_param(ignore_sniffer, bool, 0644);
1277 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1279 module_param(disable_scofix, bool, 0644);
1280 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1282 module_param(force_scofix, bool, 0644);
1283 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1285 module_param(reset, bool, 0644);
1286 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1288 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1289 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1290 MODULE_VERSION(VERSION);
1291 MODULE_LICENSE("GPL");