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>
26 #include <linux/firmware.h>
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
33 static bool disable_scofix;
34 static bool force_scofix;
36 static bool reset = 1;
38 static struct usb_driver btusb_driver;
40 #define BTUSB_IGNORE 0x01
41 #define BTUSB_DIGIANSWER 0x02
42 #define BTUSB_CSR 0x04
43 #define BTUSB_SNIFFER 0x08
44 #define BTUSB_BCM92035 0x10
45 #define BTUSB_BROKEN_ISOC 0x20
46 #define BTUSB_WRONG_SCO_MTU 0x40
47 #define BTUSB_ATH3012 0x80
48 #define BTUSB_INTEL 0x100
49 #define BTUSB_INTEL_BOOT 0x200
50 #define BTUSB_BCM_PATCHRAM 0x400
52 static const struct usb_device_id btusb_table[] = {
53 /* Generic Bluetooth USB device */
54 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
56 /* Apple-specific (Broadcom) devices */
57 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
59 /* MediaTek MT76x0E */
60 { USB_DEVICE(0x0e8d, 0x763f) },
62 /* Broadcom SoftSailing reporting vendor specific */
63 { USB_DEVICE(0x0a5c, 0x21e1) },
65 /* Apple MacBookPro 7,1 */
66 { USB_DEVICE(0x05ac, 0x8213) },
69 { USB_DEVICE(0x05ac, 0x8215) },
71 /* Apple MacBookPro6,2 */
72 { USB_DEVICE(0x05ac, 0x8218) },
74 /* Apple MacBookAir3,1, MacBookAir3,2 */
75 { USB_DEVICE(0x05ac, 0x821b) },
77 /* Apple MacBookAir4,1 */
78 { USB_DEVICE(0x05ac, 0x821f) },
80 /* Apple MacBookPro8,2 */
81 { USB_DEVICE(0x05ac, 0x821a) },
83 /* Apple MacMini5,1 */
84 { USB_DEVICE(0x05ac, 0x8281) },
86 /* AVM BlueFRITZ! USB v2.0 */
87 { USB_DEVICE(0x057c, 0x3800) },
89 /* Bluetooth Ultraport Module from IBM */
90 { USB_DEVICE(0x04bf, 0x030a) },
92 /* ALPS Modules with non-standard id */
93 { USB_DEVICE(0x044e, 0x3001) },
94 { USB_DEVICE(0x044e, 0x3002) },
96 /* Ericsson with non-standard id */
97 { USB_DEVICE(0x0bdb, 0x1002) },
99 /* Canyon CN-BTU1 with HID interfaces */
100 { USB_DEVICE(0x0c10, 0x0000) },
102 /* Broadcom BCM20702A0 */
103 { USB_DEVICE(0x0489, 0xe042) },
104 { USB_DEVICE(0x04ca, 0x2003) },
105 { USB_DEVICE(0x0b05, 0x17b5) },
106 { USB_DEVICE(0x0b05, 0x17cb) },
107 { USB_DEVICE(0x413c, 0x8197) },
109 /* Foxconn - Hon Hai */
110 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
112 /* Broadcom devices with vendor specific id */
113 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
114 .driver_info = BTUSB_BCM_PATCHRAM },
116 /* Belkin F8065bf - Broadcom based */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
119 /* IMC Networks - Broadcom based */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
122 /* Intel Bluetooth USB Bootloader (RAM module) */
123 { USB_DEVICE(0x8087, 0x0a5a),
124 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
126 { } /* Terminating entry */
129 MODULE_DEVICE_TABLE(usb, btusb_table);
131 static const struct usb_device_id blacklist_table[] = {
132 /* CSR BlueCore devices */
133 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
135 /* Broadcom BCM2033 without firmware */
136 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
138 /* Atheros 3011 with sflash firmware */
139 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
140 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
141 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
142 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
143 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
144 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
146 /* Atheros AR9285 Malbec with sflash firmware */
147 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
149 /* Atheros 3012 with sflash firmware */
150 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
182 /* Atheros AR5BBU12 with sflash firmware */
183 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
185 /* Atheros AR5BBU12 with sflash firmware */
186 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
189 /* Broadcom BCM2035 */
190 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
191 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
192 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
194 /* Broadcom BCM2045 */
195 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
196 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
198 /* IBM/Lenovo ThinkPad with Broadcom chip */
199 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
200 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
202 /* HP laptop with Broadcom chip */
203 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* Dell laptop with Broadcom chip */
206 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
208 /* Dell Wireless 370 and 410 devices */
209 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
210 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
212 /* Belkin F8T012 and F8T013 devices */
213 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
214 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* Asus WL-BTD202 device */
217 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
219 /* Kensington Bluetooth USB adapter */
220 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
222 /* RTX Telecom based adapters with buggy SCO support */
223 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
224 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
226 /* CONWISE Technology based adapters with buggy SCO support */
227 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
229 /* Digianswer devices */
230 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
231 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
233 /* CSR BlueCore Bluetooth Sniffer */
234 { USB_DEVICE(0x0a12, 0x0002),
235 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
237 /* Frontline ComProbe Bluetooth Sniffer */
238 { USB_DEVICE(0x16d3, 0x0002),
239 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
241 /* Intel Bluetooth device */
242 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
243 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
245 { } /* Terminating entry */
248 #define BTUSB_MAX_ISOC_FRAMES 10
250 #define BTUSB_INTR_RUNNING 0
251 #define BTUSB_BULK_RUNNING 1
252 #define BTUSB_ISOC_RUNNING 2
253 #define BTUSB_SUSPENDING 3
254 #define BTUSB_DID_ISO_RESUME 4
257 struct hci_dev *hdev;
258 struct usb_device *udev;
259 struct usb_interface *intf;
260 struct usb_interface *isoc;
266 struct work_struct work;
267 struct work_struct waker;
269 struct usb_anchor tx_anchor;
270 struct usb_anchor intr_anchor;
271 struct usb_anchor bulk_anchor;
272 struct usb_anchor isoc_anchor;
273 struct usb_anchor deferred;
277 struct usb_endpoint_descriptor *intr_ep;
278 struct usb_endpoint_descriptor *bulk_tx_ep;
279 struct usb_endpoint_descriptor *bulk_rx_ep;
280 struct usb_endpoint_descriptor *isoc_tx_ep;
281 struct usb_endpoint_descriptor *isoc_rx_ep;
285 unsigned int sco_num;
290 static int inc_tx(struct btusb_data *data)
295 spin_lock_irqsave(&data->txlock, flags);
296 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
298 data->tx_in_flight++;
299 spin_unlock_irqrestore(&data->txlock, flags);
304 static void btusb_intr_complete(struct urb *urb)
306 struct hci_dev *hdev = urb->context;
307 struct btusb_data *data = hci_get_drvdata(hdev);
310 BT_DBG("%s urb %p status %d count %d", hdev->name,
311 urb, urb->status, urb->actual_length);
313 if (!test_bit(HCI_RUNNING, &hdev->flags))
316 if (urb->status == 0) {
317 hdev->stat.byte_rx += urb->actual_length;
319 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
320 urb->transfer_buffer,
321 urb->actual_length) < 0) {
322 BT_ERR("%s corrupted event packet", hdev->name);
327 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
330 usb_mark_last_busy(data->udev);
331 usb_anchor_urb(urb, &data->intr_anchor);
333 err = usb_submit_urb(urb, GFP_ATOMIC);
335 /* -EPERM: urb is being killed;
336 * -ENODEV: device got disconnected */
337 if (err != -EPERM && err != -ENODEV)
338 BT_ERR("%s urb %p failed to resubmit (%d)",
339 hdev->name, urb, -err);
340 usb_unanchor_urb(urb);
344 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
346 struct btusb_data *data = hci_get_drvdata(hdev);
352 BT_DBG("%s", hdev->name);
357 urb = usb_alloc_urb(0, mem_flags);
361 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
363 buf = kmalloc(size, mem_flags);
369 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
371 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
372 btusb_intr_complete, hdev,
373 data->intr_ep->bInterval);
375 urb->transfer_flags |= URB_FREE_BUFFER;
377 usb_anchor_urb(urb, &data->intr_anchor);
379 err = usb_submit_urb(urb, mem_flags);
381 if (err != -EPERM && err != -ENODEV)
382 BT_ERR("%s urb %p submission failed (%d)",
383 hdev->name, urb, -err);
384 usb_unanchor_urb(urb);
392 static void btusb_bulk_complete(struct urb *urb)
394 struct hci_dev *hdev = urb->context;
395 struct btusb_data *data = hci_get_drvdata(hdev);
398 BT_DBG("%s urb %p status %d count %d", hdev->name,
399 urb, urb->status, urb->actual_length);
401 if (!test_bit(HCI_RUNNING, &hdev->flags))
404 if (urb->status == 0) {
405 hdev->stat.byte_rx += urb->actual_length;
407 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
408 urb->transfer_buffer,
409 urb->actual_length) < 0) {
410 BT_ERR("%s corrupted ACL packet", hdev->name);
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 = hci_get_drvdata(hdev);
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 if (err != -EPERM && err != -ENODEV)
468 BT_ERR("%s urb %p submission failed (%d)",
469 hdev->name, urb, -err);
470 usb_unanchor_urb(urb);
478 static void btusb_isoc_complete(struct urb *urb)
480 struct hci_dev *hdev = urb->context;
481 struct btusb_data *data = hci_get_drvdata(hdev);
484 BT_DBG("%s urb %p status %d count %d", hdev->name,
485 urb, urb->status, urb->actual_length);
487 if (!test_bit(HCI_RUNNING, &hdev->flags))
490 if (urb->status == 0) {
491 for (i = 0; i < urb->number_of_packets; i++) {
492 unsigned int offset = urb->iso_frame_desc[i].offset;
493 unsigned int length = urb->iso_frame_desc[i].actual_length;
495 if (urb->iso_frame_desc[i].status)
498 hdev->stat.byte_rx += length;
500 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
501 urb->transfer_buffer + offset,
503 BT_ERR("%s corrupted SCO packet", hdev->name);
509 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
512 usb_anchor_urb(urb, &data->isoc_anchor);
514 err = usb_submit_urb(urb, GFP_ATOMIC);
516 /* -EPERM: urb is being killed;
517 * -ENODEV: device got disconnected */
518 if (err != -EPERM && err != -ENODEV)
519 BT_ERR("%s urb %p failed to resubmit (%d)",
520 hdev->name, urb, -err);
521 usb_unanchor_urb(urb);
525 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
529 BT_DBG("len %d mtu %d", len, mtu);
531 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
532 i++, offset += mtu, len -= mtu) {
533 urb->iso_frame_desc[i].offset = offset;
534 urb->iso_frame_desc[i].length = mtu;
537 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
538 urb->iso_frame_desc[i].offset = offset;
539 urb->iso_frame_desc[i].length = len;
543 urb->number_of_packets = i;
546 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
548 struct btusb_data *data = hci_get_drvdata(hdev);
554 BT_DBG("%s", hdev->name);
556 if (!data->isoc_rx_ep)
559 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
563 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
564 BTUSB_MAX_ISOC_FRAMES;
566 buf = kmalloc(size, mem_flags);
572 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
574 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
575 hdev, data->isoc_rx_ep->bInterval);
577 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
579 __fill_isoc_descriptor(urb, size,
580 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
582 usb_anchor_urb(urb, &data->isoc_anchor);
584 err = usb_submit_urb(urb, mem_flags);
586 if (err != -EPERM && err != -ENODEV)
587 BT_ERR("%s urb %p submission failed (%d)",
588 hdev->name, urb, -err);
589 usb_unanchor_urb(urb);
597 static void btusb_tx_complete(struct urb *urb)
599 struct sk_buff *skb = urb->context;
600 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
601 struct btusb_data *data = hci_get_drvdata(hdev);
603 BT_DBG("%s urb %p status %d count %d", hdev->name,
604 urb, urb->status, urb->actual_length);
606 if (!test_bit(HCI_RUNNING, &hdev->flags))
610 hdev->stat.byte_tx += urb->transfer_buffer_length;
615 spin_lock(&data->txlock);
616 data->tx_in_flight--;
617 spin_unlock(&data->txlock);
619 kfree(urb->setup_packet);
624 static void btusb_isoc_tx_complete(struct urb *urb)
626 struct sk_buff *skb = urb->context;
627 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
629 BT_DBG("%s urb %p status %d count %d", hdev->name,
630 urb, urb->status, urb->actual_length);
632 if (!test_bit(HCI_RUNNING, &hdev->flags))
636 hdev->stat.byte_tx += urb->transfer_buffer_length;
641 kfree(urb->setup_packet);
646 static int btusb_open(struct hci_dev *hdev)
648 struct btusb_data *data = hci_get_drvdata(hdev);
651 BT_DBG("%s", hdev->name);
653 err = usb_autopm_get_interface(data->intf);
657 data->intf->needs_remote_wakeup = 1;
659 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
662 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
665 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
669 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
671 usb_kill_anchored_urbs(&data->intr_anchor);
675 set_bit(BTUSB_BULK_RUNNING, &data->flags);
676 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
679 usb_autopm_put_interface(data->intf);
683 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
684 clear_bit(HCI_RUNNING, &hdev->flags);
685 usb_autopm_put_interface(data->intf);
689 static void btusb_stop_traffic(struct btusb_data *data)
691 usb_kill_anchored_urbs(&data->intr_anchor);
692 usb_kill_anchored_urbs(&data->bulk_anchor);
693 usb_kill_anchored_urbs(&data->isoc_anchor);
696 static int btusb_close(struct hci_dev *hdev)
698 struct btusb_data *data = hci_get_drvdata(hdev);
701 BT_DBG("%s", hdev->name);
703 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
706 cancel_work_sync(&data->work);
707 cancel_work_sync(&data->waker);
709 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
710 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
711 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
713 btusb_stop_traffic(data);
714 err = usb_autopm_get_interface(data->intf);
718 data->intf->needs_remote_wakeup = 0;
719 usb_autopm_put_interface(data->intf);
722 usb_scuttle_anchored_urbs(&data->deferred);
726 static int btusb_flush(struct hci_dev *hdev)
728 struct btusb_data *data = hci_get_drvdata(hdev);
730 BT_DBG("%s", hdev->name);
732 usb_kill_anchored_urbs(&data->tx_anchor);
737 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
739 struct btusb_data *data = hci_get_drvdata(hdev);
740 struct usb_ctrlrequest *dr;
745 BT_DBG("%s", hdev->name);
747 if (!test_bit(HCI_RUNNING, &hdev->flags))
750 skb->dev = (void *) hdev;
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 || hci_conn_num(hdev, SCO_LINK) < 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 if (err != -EPERM && err != -ENODEV)
836 BT_ERR("%s urb %p submission failed (%d)",
837 hdev->name, urb, -err);
838 kfree(urb->setup_packet);
839 usb_unanchor_urb(urb);
841 usb_mark_last_busy(data->udev);
849 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
851 struct btusb_data *data = hci_get_drvdata(hdev);
853 BT_DBG("%s evt %d", hdev->name, evt);
855 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
856 data->sco_num = hci_conn_num(hdev, SCO_LINK);
857 schedule_work(&data->work);
861 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
863 struct btusb_data *data = hci_get_drvdata(hdev);
864 struct usb_interface *intf = data->isoc;
865 struct usb_endpoint_descriptor *ep_desc;
871 err = usb_set_interface(data->udev, 1, altsetting);
873 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
877 data->isoc_altsetting = altsetting;
879 data->isoc_tx_ep = NULL;
880 data->isoc_rx_ep = NULL;
882 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
883 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
885 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
886 data->isoc_tx_ep = ep_desc;
890 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
891 data->isoc_rx_ep = ep_desc;
896 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
897 BT_ERR("%s invalid SCO descriptors", hdev->name);
904 static void btusb_work(struct work_struct *work)
906 struct btusb_data *data = container_of(work, struct btusb_data, work);
907 struct hci_dev *hdev = data->hdev;
911 if (data->sco_num > 0) {
912 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
913 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
915 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
916 usb_kill_anchored_urbs(&data->isoc_anchor);
920 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
923 if (hdev->voice_setting & 0x0020) {
924 static const int alts[3] = { 2, 4, 5 };
925 new_alts = alts[data->sco_num - 1];
927 new_alts = data->sco_num;
930 if (data->isoc_altsetting != new_alts) {
931 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
932 usb_kill_anchored_urbs(&data->isoc_anchor);
934 if (__set_isoc_interface(hdev, new_alts) < 0)
938 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
939 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
940 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
942 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
945 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
946 usb_kill_anchored_urbs(&data->isoc_anchor);
948 __set_isoc_interface(hdev, 0);
949 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
950 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
954 static void btusb_waker(struct work_struct *work)
956 struct btusb_data *data = container_of(work, struct btusb_data, waker);
959 err = usb_autopm_get_interface(data->intf);
963 usb_autopm_put_interface(data->intf);
966 static int btusb_setup_bcm92035(struct hci_dev *hdev)
971 BT_DBG("%s", hdev->name);
973 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
975 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
982 static int btusb_setup_csr(struct hci_dev *hdev)
984 struct hci_rp_read_local_version *rp;
988 BT_DBG("%s", hdev->name);
990 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
993 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
994 return -PTR_ERR(skb);
997 rp = (struct hci_rp_read_local_version *) skb->data;
1000 if (le16_to_cpu(rp->manufacturer) != 10) {
1001 /* Clear the reset quirk since this is not an actual
1002 * early Bluetooth 1.1 device from CSR.
1004 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1006 /* These fake CSR controllers have all a broken
1007 * stored link key handling and so just disable it.
1009 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1014 ret = -bt_to_errno(rp->status);
1021 struct intel_version {
1034 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1035 struct intel_version *ver)
1037 const struct firmware *fw;
1041 snprintf(fwname, sizeof(fwname),
1042 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1043 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1044 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1045 ver->fw_build_ww, ver->fw_build_yy);
1047 ret = request_firmware(&fw, fwname, &hdev->dev);
1049 if (ret == -EINVAL) {
1050 BT_ERR("%s Intel firmware file request failed (%d)",
1055 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1056 hdev->name, fwname, ret);
1058 /* If the correct firmware patch file is not found, use the
1059 * default firmware patch file instead
1061 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1062 ver->hw_platform, ver->hw_variant);
1063 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1064 BT_ERR("%s failed to open default Intel fw file: %s",
1065 hdev->name, fwname);
1070 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1075 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1076 const struct firmware *fw,
1077 const u8 **fw_ptr, int *disable_patch)
1079 struct sk_buff *skb;
1080 struct hci_command_hdr *cmd;
1081 const u8 *cmd_param;
1082 struct hci_event_hdr *evt = NULL;
1083 const u8 *evt_param = NULL;
1084 int remain = fw->size - (*fw_ptr - fw->data);
1086 /* The first byte indicates the types of the patch command or event.
1087 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1088 * in the current firmware buffer doesn't start with 0x01 or
1089 * the size of remain buffer is smaller than HCI command header,
1090 * the firmware file is corrupted and it should stop the patching
1093 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1094 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1100 cmd = (struct hci_command_hdr *)(*fw_ptr);
1101 *fw_ptr += sizeof(*cmd);
1102 remain -= sizeof(*cmd);
1104 /* Ensure that the remain firmware data is long enough than the length
1105 * of command parameter. If not, the firmware file is corrupted.
1107 if (remain < cmd->plen) {
1108 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1112 /* If there is a command that loads a patch in the firmware
1113 * file, then enable the patch upon success, otherwise just
1114 * disable the manufacturer mode, for example patch activation
1115 * is not required when the default firmware patch file is used
1116 * because there are no patch data to load.
1118 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1121 cmd_param = *fw_ptr;
1122 *fw_ptr += cmd->plen;
1123 remain -= cmd->plen;
1125 /* This reads the expected events when the above command is sent to the
1126 * device. Some vendor commands expects more than one events, for
1127 * example command status event followed by vendor specific event.
1128 * For this case, it only keeps the last expected event. so the command
1129 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1130 * last expected event.
1132 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1136 evt = (struct hci_event_hdr *)(*fw_ptr);
1137 *fw_ptr += sizeof(*evt);
1138 remain -= sizeof(*evt);
1140 if (remain < evt->plen) {
1141 BT_ERR("%s Intel fw corrupted: invalid evt len",
1146 evt_param = *fw_ptr;
1147 *fw_ptr += evt->plen;
1148 remain -= evt->plen;
1151 /* Every HCI commands in the firmware file has its correspond event.
1152 * If event is not found or remain is smaller than zero, the firmware
1153 * file is corrupted.
1155 if (!evt || !evt_param || remain < 0) {
1156 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1160 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1161 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1163 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1164 hdev->name, cmd->opcode, PTR_ERR(skb));
1165 return PTR_ERR(skb);
1168 /* It ensures that the returned event matches the event data read from
1169 * the firmware file. At fist, it checks the length and then
1170 * the contents of the event.
1172 if (skb->len != evt->plen) {
1173 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1174 le16_to_cpu(cmd->opcode));
1179 if (memcmp(skb->data, evt_param, evt->plen)) {
1180 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1181 hdev->name, le16_to_cpu(cmd->opcode));
1190 #define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1192 static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1194 struct sk_buff *skb;
1195 struct hci_rp_read_bd_addr *rp;
1197 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1200 BT_ERR("%s reading Intel device address failed (%ld)",
1201 hdev->name, PTR_ERR(skb));
1202 return PTR_ERR(skb);
1205 if (skb->len != sizeof(*rp)) {
1206 BT_ERR("%s Intel device address length mismatch", hdev->name);
1211 rp = (struct hci_rp_read_bd_addr *) skb->data;
1213 BT_ERR("%s Intel device address result failed (%02x)",
1214 hdev->name, rp->status);
1216 return -bt_to_errno(rp->status);
1219 /* For some Intel based controllers, the default Bluetooth device
1220 * address 00:03:19:9E:8B:00 can be found. These controllers are
1221 * fully operational, but have the danger of duplicate addresses
1222 * and that in turn can cause problems with Bluetooth operation.
1224 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
1225 BT_ERR("%s found Intel default device address (%pMR)",
1226 hdev->name, &rp->bdaddr);
1227 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1235 static int btusb_setup_intel(struct hci_dev *hdev)
1237 struct sk_buff *skb;
1238 const struct firmware *fw;
1241 struct intel_version *ver;
1243 const u8 mfg_enable[] = { 0x01, 0x00 };
1244 const u8 mfg_disable[] = { 0x00, 0x00 };
1245 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1246 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1248 BT_DBG("%s", hdev->name);
1250 /* The controller has a bug with the first HCI command sent to it
1251 * returning number of completed commands as zero. This would stall the
1252 * command processing in the Bluetooth core.
1254 * As a workaround, send HCI Reset command first which will reset the
1255 * number of completed commands and allow normal command processing
1258 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1260 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1261 hdev->name, PTR_ERR(skb));
1262 return PTR_ERR(skb);
1266 /* Read Intel specific controller version first to allow selection of
1267 * which firmware file to load.
1269 * The returned information are hardware variant and revision plus
1270 * firmware variant, revision and build number.
1272 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1274 BT_ERR("%s reading Intel fw version command failed (%ld)",
1275 hdev->name, PTR_ERR(skb));
1276 return PTR_ERR(skb);
1279 if (skb->len != sizeof(*ver)) {
1280 BT_ERR("%s Intel version event length mismatch", hdev->name);
1285 ver = (struct intel_version *)skb->data;
1287 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1290 return -bt_to_errno(ver->status);
1293 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1294 hdev->name, ver->hw_platform, ver->hw_variant,
1295 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1296 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1299 /* fw_patch_num indicates the version of patch the device currently
1300 * have. If there is no patch data in the device, it is always 0x00.
1301 * So, if it is other than 0x00, no need to patch the deivce again.
1303 if (ver->fw_patch_num) {
1304 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1305 hdev->name, ver->fw_patch_num);
1307 btusb_check_bdaddr_intel(hdev);
1311 /* Opens the firmware patch file based on the firmware version read
1312 * from the controller. If it fails to open the matching firmware
1313 * patch file, it tries to open the default firmware patch file.
1314 * If no patch file is found, allow the device to operate without
1317 fw = btusb_setup_intel_get_fw(hdev, ver);
1320 btusb_check_bdaddr_intel(hdev);
1325 /* This Intel specific command enables the manufacturer mode of the
1328 * Only while this mode is enabled, the driver can download the
1329 * firmware patch data and configuration parameters.
1331 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1333 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1334 hdev->name, PTR_ERR(skb));
1335 release_firmware(fw);
1336 return PTR_ERR(skb);
1340 u8 evt_status = skb->data[0];
1341 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1342 hdev->name, evt_status);
1344 release_firmware(fw);
1345 return -bt_to_errno(evt_status);
1351 /* The firmware data file consists of list of Intel specific HCI
1352 * commands and its expected events. The first byte indicates the
1353 * type of the message, either HCI command or HCI event.
1355 * It reads the command and its expected event from the firmware file,
1356 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1357 * the returned event is compared with the event read from the firmware
1358 * file and it will continue until all the messages are downloaded to
1361 * Once the firmware patching is completed successfully,
1362 * the manufacturer mode is disabled with reset and activating the
1365 * If the firmware patching fails, the manufacturer mode is
1366 * disabled with reset and deactivating the patch.
1368 * If the default patch file is used, no reset is done when disabling
1371 while (fw->size > fw_ptr - fw->data) {
1374 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1377 goto exit_mfg_deactivate;
1380 release_firmware(fw);
1383 goto exit_mfg_disable;
1385 /* Patching completed successfully and disable the manufacturer mode
1386 * with reset and activate the downloaded firmware patches.
1388 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1389 mfg_reset_activate, HCI_INIT_TIMEOUT);
1391 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1392 hdev->name, PTR_ERR(skb));
1393 return PTR_ERR(skb);
1397 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1400 btusb_check_bdaddr_intel(hdev);
1404 /* Disable the manufacturer mode without reset */
1405 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1408 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1409 hdev->name, PTR_ERR(skb));
1410 return PTR_ERR(skb);
1414 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1416 btusb_check_bdaddr_intel(hdev);
1419 exit_mfg_deactivate:
1420 release_firmware(fw);
1422 /* Patching failed. Disable the manufacturer mode with reset and
1423 * deactivate the downloaded firmware patches.
1425 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1426 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1428 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1429 hdev->name, PTR_ERR(skb));
1430 return PTR_ERR(skb);
1434 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1437 btusb_check_bdaddr_intel(hdev);
1441 static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1443 struct sk_buff *skb;
1446 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1449 BT_ERR("%s: changing Intel device address failed (%ld)",
1458 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1460 static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1462 struct btusb_data *data = hci_get_drvdata(hdev);
1463 struct usb_device *udev = data->udev;
1465 const struct firmware *fw;
1468 const struct hci_command_hdr *cmd;
1469 const u8 *cmd_param;
1471 struct sk_buff *skb;
1472 struct hci_rp_read_local_version *ver;
1473 struct hci_rp_read_bd_addr *bda;
1476 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1477 udev->product ? udev->product : "BCM",
1478 le16_to_cpu(udev->descriptor.idVendor),
1479 le16_to_cpu(udev->descriptor.idProduct));
1481 ret = request_firmware(&fw, fw_name, &hdev->dev);
1483 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
1488 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1491 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1496 /* Read Local Version Info */
1497 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1501 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1506 if (skb->len != sizeof(*ver)) {
1507 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1514 ver = (struct hci_rp_read_local_version *) skb->data;
1515 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1516 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1517 ver->lmp_ver, ver->lmp_subver);
1520 /* Start Download */
1521 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1524 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
1530 /* 50 msec delay after Download Minidrv completes */
1536 while (fw_size >= sizeof(*cmd)) {
1537 cmd = (struct hci_command_hdr *) fw_ptr;
1538 fw_ptr += sizeof(*cmd);
1539 fw_size -= sizeof(*cmd);
1541 if (fw_size < cmd->plen) {
1542 BT_ERR("%s: BCM: patch %s is corrupted",
1543 hdev->name, fw_name);
1549 fw_ptr += cmd->plen;
1550 fw_size -= cmd->plen;
1552 opcode = le16_to_cpu(cmd->opcode);
1554 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1558 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
1559 hdev->name, opcode, ret);
1565 /* 250 msec delay after Launch Ram completes */
1570 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1573 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1578 /* Read Local Version Info */
1579 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1583 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1588 if (skb->len != sizeof(*ver)) {
1589 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1596 ver = (struct hci_rp_read_local_version *) skb->data;
1597 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1598 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1599 ver->lmp_ver, ver->lmp_subver);
1602 /* Read BD Address */
1603 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1607 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
1612 if (skb->len != sizeof(*bda)) {
1613 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
1620 bda = (struct hci_rp_read_bd_addr *) skb->data;
1622 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1623 hdev->name, bda->status);
1625 ret = -bt_to_errno(bda->status);
1629 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1630 * with no configured address.
1632 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
1633 BT_INFO("%s: BCM: using default device address (%pMR)",
1634 hdev->name, &bda->bdaddr);
1635 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1641 release_firmware(fw);
1646 static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1648 struct sk_buff *skb;
1651 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1654 BT_ERR("%s: BCM: Change address command failed (%ld)",
1663 static int btusb_probe(struct usb_interface *intf,
1664 const struct usb_device_id *id)
1666 struct usb_endpoint_descriptor *ep_desc;
1667 struct btusb_data *data;
1668 struct hci_dev *hdev;
1671 BT_DBG("intf %p id %p", intf, id);
1673 /* interface numbers are hardcoded in the spec */
1674 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1677 if (!id->driver_info) {
1678 const struct usb_device_id *match;
1679 match = usb_match_id(intf, blacklist_table);
1684 if (id->driver_info == BTUSB_IGNORE)
1687 if (id->driver_info & BTUSB_ATH3012) {
1688 struct usb_device *udev = interface_to_usbdev(intf);
1690 /* Old firmware would otherwise let ath3k driver load
1691 * patch and sysconfig files */
1692 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1696 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1700 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1701 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1703 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1704 data->intr_ep = ep_desc;
1708 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1709 data->bulk_tx_ep = ep_desc;
1713 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1714 data->bulk_rx_ep = ep_desc;
1719 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
1722 data->cmdreq_type = USB_TYPE_CLASS;
1724 data->udev = interface_to_usbdev(intf);
1727 spin_lock_init(&data->lock);
1729 INIT_WORK(&data->work, btusb_work);
1730 INIT_WORK(&data->waker, btusb_waker);
1731 spin_lock_init(&data->txlock);
1733 init_usb_anchor(&data->tx_anchor);
1734 init_usb_anchor(&data->intr_anchor);
1735 init_usb_anchor(&data->bulk_anchor);
1736 init_usb_anchor(&data->isoc_anchor);
1737 init_usb_anchor(&data->deferred);
1739 hdev = hci_alloc_dev();
1743 hdev->bus = HCI_USB;
1744 hci_set_drvdata(hdev, data);
1748 SET_HCIDEV_DEV(hdev, &intf->dev);
1750 hdev->open = btusb_open;
1751 hdev->close = btusb_close;
1752 hdev->flush = btusb_flush;
1753 hdev->send = btusb_send_frame;
1754 hdev->notify = btusb_notify;
1756 if (id->driver_info & BTUSB_BCM92035)
1757 hdev->setup = btusb_setup_bcm92035;
1759 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
1760 hdev->setup = btusb_setup_bcm_patchram;
1761 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
1764 if (id->driver_info & BTUSB_INTEL) {
1765 hdev->setup = btusb_setup_intel;
1766 hdev->set_bdaddr = btusb_set_bdaddr_intel;
1769 if (id->driver_info & BTUSB_INTEL_BOOT)
1770 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1772 /* Interface numbers are hardcoded in the specification */
1773 data->isoc = usb_ifnum_to_if(data->udev, 1);
1776 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1778 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1779 if (!disable_scofix)
1780 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1783 if (id->driver_info & BTUSB_BROKEN_ISOC)
1786 if (id->driver_info & BTUSB_DIGIANSWER) {
1787 data->cmdreq_type = USB_TYPE_VENDOR;
1788 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1791 if (id->driver_info & BTUSB_CSR) {
1792 struct usb_device *udev = data->udev;
1793 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
1795 /* Old firmware would otherwise execute USB reset */
1796 if (bcdDevice < 0x117)
1797 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1799 /* Fake CSR devices with broken commands */
1800 if (bcdDevice <= 0x100)
1801 hdev->setup = btusb_setup_csr;
1804 if (id->driver_info & BTUSB_SNIFFER) {
1805 struct usb_device *udev = data->udev;
1807 /* New sniffer firmware has crippled HCI interface */
1808 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1809 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1812 if (id->driver_info & BTUSB_INTEL_BOOT) {
1813 /* A bug in the bootloader causes that interrupt interface is
1814 * only enabled after receiving SetInterface(0, AltSetting=0).
1816 err = usb_set_interface(data->udev, 0, 0);
1818 BT_ERR("failed to set interface 0, alt 0 %d", err);
1825 err = usb_driver_claim_interface(&btusb_driver,
1833 err = hci_register_dev(hdev);
1839 usb_set_intfdata(intf, data);
1844 static void btusb_disconnect(struct usb_interface *intf)
1846 struct btusb_data *data = usb_get_intfdata(intf);
1847 struct hci_dev *hdev;
1849 BT_DBG("intf %p", intf);
1855 usb_set_intfdata(data->intf, NULL);
1858 usb_set_intfdata(data->isoc, NULL);
1860 hci_unregister_dev(hdev);
1862 if (intf == data->isoc)
1863 usb_driver_release_interface(&btusb_driver, data->intf);
1864 else if (data->isoc)
1865 usb_driver_release_interface(&btusb_driver, data->isoc);
1871 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1873 struct btusb_data *data = usb_get_intfdata(intf);
1875 BT_DBG("intf %p", intf);
1877 if (data->suspend_count++)
1880 spin_lock_irq(&data->txlock);
1881 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1882 set_bit(BTUSB_SUSPENDING, &data->flags);
1883 spin_unlock_irq(&data->txlock);
1885 spin_unlock_irq(&data->txlock);
1886 data->suspend_count--;
1890 cancel_work_sync(&data->work);
1892 btusb_stop_traffic(data);
1893 usb_kill_anchored_urbs(&data->tx_anchor);
1898 static void play_deferred(struct btusb_data *data)
1903 while ((urb = usb_get_from_anchor(&data->deferred))) {
1904 err = usb_submit_urb(urb, GFP_ATOMIC);
1908 data->tx_in_flight++;
1910 usb_scuttle_anchored_urbs(&data->deferred);
1913 static int btusb_resume(struct usb_interface *intf)
1915 struct btusb_data *data = usb_get_intfdata(intf);
1916 struct hci_dev *hdev = data->hdev;
1919 BT_DBG("intf %p", intf);
1921 if (--data->suspend_count)
1924 if (!test_bit(HCI_RUNNING, &hdev->flags))
1927 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1928 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1930 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1935 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1936 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1938 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1942 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1945 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1946 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1947 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1949 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1952 spin_lock_irq(&data->txlock);
1953 play_deferred(data);
1954 clear_bit(BTUSB_SUSPENDING, &data->flags);
1955 spin_unlock_irq(&data->txlock);
1956 schedule_work(&data->work);
1961 usb_scuttle_anchored_urbs(&data->deferred);
1963 spin_lock_irq(&data->txlock);
1964 clear_bit(BTUSB_SUSPENDING, &data->flags);
1965 spin_unlock_irq(&data->txlock);
1971 static struct usb_driver btusb_driver = {
1973 .probe = btusb_probe,
1974 .disconnect = btusb_disconnect,
1976 .suspend = btusb_suspend,
1977 .resume = btusb_resume,
1979 .id_table = btusb_table,
1980 .supports_autosuspend = 1,
1981 .disable_hub_initiated_lpm = 1,
1984 module_usb_driver(btusb_driver);
1986 module_param(disable_scofix, bool, 0644);
1987 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1989 module_param(force_scofix, bool, 0644);
1990 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1992 module_param(reset, bool, 0644);
1993 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1995 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1996 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1997 MODULE_VERSION(VERSION);
1998 MODULE_LICENSE("GPL");