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
51 #define BTUSB_MARVELL 0x800
53 static const struct usb_device_id btusb_table[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
60 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
63 /* Broadcom SoftSailing reporting vendor specific */
64 { USB_DEVICE(0x0a5c, 0x21e1) },
66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
70 { USB_DEVICE(0x05ac, 0x8215) },
72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
100 /* Canyon CN-BTU1 with HID interfaces */
101 { USB_DEVICE(0x0c10, 0x0000) },
103 /* Broadcom BCM20702A0 */
104 { USB_DEVICE(0x0489, 0xe042) },
105 { USB_DEVICE(0x04ca, 0x2003) },
106 { USB_DEVICE(0x0b05, 0x17b5) },
107 { USB_DEVICE(0x0b05, 0x17cb) },
108 { USB_DEVICE(0x413c, 0x8197) },
109 { USB_DEVICE(0x13d3, 0x3404),
110 .driver_info = BTUSB_BCM_PATCHRAM },
112 /* Foxconn - Hon Hai */
113 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
114 .driver_info = BTUSB_BCM_PATCHRAM },
116 /* Broadcom devices with vendor specific id */
117 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
118 .driver_info = BTUSB_BCM_PATCHRAM },
120 /* ASUSTek Computer - Broadcom based */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
123 /* Belkin F8065bf - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
126 /* IMC Networks - Broadcom based */
127 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
129 /* Intel Bluetooth USB Bootloader (RAM module) */
130 { USB_DEVICE(0x8087, 0x0a5a),
131 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
133 { } /* Terminating entry */
136 MODULE_DEVICE_TABLE(usb, btusb_table);
138 static const struct usb_device_id blacklist_table[] = {
139 /* CSR BlueCore devices */
140 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
142 /* Broadcom BCM2033 without firmware */
143 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
145 /* Atheros 3011 with sflash firmware */
146 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
147 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
148 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
149 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
150 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
151 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
153 /* Atheros AR9285 Malbec with sflash firmware */
154 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
156 /* Atheros 3012 with sflash firmware */
157 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0930, 0x0227), .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, 0x3408), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
193 /* Atheros AR5BBU12 with sflash firmware */
194 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
196 /* Atheros AR5BBU12 with sflash firmware */
197 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
200 /* Broadcom BCM2035 */
201 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
202 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
203 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
205 /* Broadcom BCM2045 */
206 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
207 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
209 /* IBM/Lenovo ThinkPad with Broadcom chip */
210 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
211 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
213 /* HP laptop with Broadcom chip */
214 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* Dell laptop with Broadcom chip */
217 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
219 /* Dell Wireless 370 and 410 devices */
220 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
221 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
223 /* Belkin F8T012 and F8T013 devices */
224 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
225 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
227 /* Asus WL-BTD202 device */
228 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
230 /* Kensington Bluetooth USB adapter */
231 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
233 /* RTX Telecom based adapters with buggy SCO support */
234 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
235 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
237 /* CONWISE Technology based adapters with buggy SCO support */
238 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
240 /* Digianswer devices */
241 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
242 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
244 /* CSR BlueCore Bluetooth Sniffer */
245 { USB_DEVICE(0x0a12, 0x0002),
246 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
248 /* Frontline ComProbe Bluetooth Sniffer */
249 { USB_DEVICE(0x16d3, 0x0002),
250 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
252 /* Intel Bluetooth device */
253 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
254 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
257 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
258 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
260 { } /* Terminating entry */
263 #define BTUSB_MAX_ISOC_FRAMES 10
265 #define BTUSB_INTR_RUNNING 0
266 #define BTUSB_BULK_RUNNING 1
267 #define BTUSB_ISOC_RUNNING 2
268 #define BTUSB_SUSPENDING 3
269 #define BTUSB_DID_ISO_RESUME 4
272 struct hci_dev *hdev;
273 struct usb_device *udev;
274 struct usb_interface *intf;
275 struct usb_interface *isoc;
279 struct work_struct work;
280 struct work_struct waker;
282 struct usb_anchor deferred;
283 struct usb_anchor tx_anchor;
287 struct usb_anchor intr_anchor;
288 struct usb_anchor bulk_anchor;
289 struct usb_anchor isoc_anchor;
292 struct sk_buff *evt_skb;
293 struct sk_buff *acl_skb;
294 struct sk_buff *sco_skb;
296 struct usb_endpoint_descriptor *intr_ep;
297 struct usb_endpoint_descriptor *bulk_tx_ep;
298 struct usb_endpoint_descriptor *bulk_rx_ep;
299 struct usb_endpoint_descriptor *isoc_tx_ep;
300 struct usb_endpoint_descriptor *isoc_rx_ep;
304 unsigned int sco_num;
308 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
311 static inline void btusb_free_frags(struct btusb_data *data)
315 spin_lock_irqsave(&data->rxlock, flags);
317 kfree_skb(data->evt_skb);
318 data->evt_skb = NULL;
320 kfree_skb(data->acl_skb);
321 data->acl_skb = NULL;
323 kfree_skb(data->sco_skb);
324 data->sco_skb = NULL;
326 spin_unlock_irqrestore(&data->rxlock, flags);
329 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
334 spin_lock(&data->rxlock);
341 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
347 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
348 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
351 len = min_t(uint, bt_cb(skb)->expect, count);
352 memcpy(skb_put(skb, len), buffer, len);
356 bt_cb(skb)->expect -= len;
358 if (skb->len == HCI_EVENT_HDR_SIZE) {
359 /* Complete event header */
360 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
362 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
371 if (bt_cb(skb)->expect == 0) {
373 hci_recv_frame(data->hdev, skb);
379 spin_unlock(&data->rxlock);
384 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
389 spin_lock(&data->rxlock);
396 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
402 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
403 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
406 len = min_t(uint, bt_cb(skb)->expect, count);
407 memcpy(skb_put(skb, len), buffer, len);
411 bt_cb(skb)->expect -= len;
413 if (skb->len == HCI_ACL_HDR_SIZE) {
414 __le16 dlen = hci_acl_hdr(skb)->dlen;
416 /* Complete ACL header */
417 bt_cb(skb)->expect = __le16_to_cpu(dlen);
419 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
428 if (bt_cb(skb)->expect == 0) {
430 hci_recv_frame(data->hdev, skb);
436 spin_unlock(&data->rxlock);
441 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
446 spin_lock(&data->rxlock);
453 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
459 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
460 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
463 len = min_t(uint, bt_cb(skb)->expect, count);
464 memcpy(skb_put(skb, len), buffer, len);
468 bt_cb(skb)->expect -= len;
470 if (skb->len == HCI_SCO_HDR_SIZE) {
471 /* Complete SCO header */
472 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
474 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
483 if (bt_cb(skb)->expect == 0) {
485 hci_recv_frame(data->hdev, skb);
491 spin_unlock(&data->rxlock);
496 static void btusb_intr_complete(struct urb *urb)
498 struct hci_dev *hdev = urb->context;
499 struct btusb_data *data = hci_get_drvdata(hdev);
502 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
505 if (!test_bit(HCI_RUNNING, &hdev->flags))
508 if (urb->status == 0) {
509 hdev->stat.byte_rx += urb->actual_length;
511 if (btusb_recv_intr(data, urb->transfer_buffer,
512 urb->actual_length) < 0) {
513 BT_ERR("%s corrupted event packet", hdev->name);
516 } else if (urb->status == -ENOENT) {
517 /* Avoid suspend failed when usb_kill_urb */
521 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
524 usb_mark_last_busy(data->udev);
525 usb_anchor_urb(urb, &data->intr_anchor);
527 err = usb_submit_urb(urb, GFP_ATOMIC);
529 /* -EPERM: urb is being killed;
530 * -ENODEV: device got disconnected */
531 if (err != -EPERM && err != -ENODEV)
532 BT_ERR("%s urb %p failed to resubmit (%d)",
533 hdev->name, urb, -err);
534 usb_unanchor_urb(urb);
538 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
540 struct btusb_data *data = hci_get_drvdata(hdev);
546 BT_DBG("%s", hdev->name);
551 urb = usb_alloc_urb(0, mem_flags);
555 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
557 buf = kmalloc(size, mem_flags);
563 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
565 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
566 btusb_intr_complete, hdev, data->intr_ep->bInterval);
568 urb->transfer_flags |= URB_FREE_BUFFER;
570 usb_anchor_urb(urb, &data->intr_anchor);
572 err = usb_submit_urb(urb, mem_flags);
574 if (err != -EPERM && err != -ENODEV)
575 BT_ERR("%s urb %p submission failed (%d)",
576 hdev->name, urb, -err);
577 usb_unanchor_urb(urb);
585 static void btusb_bulk_complete(struct urb *urb)
587 struct hci_dev *hdev = urb->context;
588 struct btusb_data *data = hci_get_drvdata(hdev);
591 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
594 if (!test_bit(HCI_RUNNING, &hdev->flags))
597 if (urb->status == 0) {
598 hdev->stat.byte_rx += urb->actual_length;
600 if (data->recv_bulk(data, urb->transfer_buffer,
601 urb->actual_length) < 0) {
602 BT_ERR("%s corrupted ACL packet", hdev->name);
605 } else if (urb->status == -ENOENT) {
606 /* Avoid suspend failed when usb_kill_urb */
610 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
613 usb_anchor_urb(urb, &data->bulk_anchor);
614 usb_mark_last_busy(data->udev);
616 err = usb_submit_urb(urb, GFP_ATOMIC);
618 /* -EPERM: urb is being killed;
619 * -ENODEV: device got disconnected */
620 if (err != -EPERM && err != -ENODEV)
621 BT_ERR("%s urb %p failed to resubmit (%d)",
622 hdev->name, urb, -err);
623 usb_unanchor_urb(urb);
627 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
629 struct btusb_data *data = hci_get_drvdata(hdev);
633 int err, size = HCI_MAX_FRAME_SIZE;
635 BT_DBG("%s", hdev->name);
637 if (!data->bulk_rx_ep)
640 urb = usb_alloc_urb(0, mem_flags);
644 buf = kmalloc(size, mem_flags);
650 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
652 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
653 btusb_bulk_complete, hdev);
655 urb->transfer_flags |= URB_FREE_BUFFER;
657 usb_mark_last_busy(data->udev);
658 usb_anchor_urb(urb, &data->bulk_anchor);
660 err = usb_submit_urb(urb, mem_flags);
662 if (err != -EPERM && err != -ENODEV)
663 BT_ERR("%s urb %p submission failed (%d)",
664 hdev->name, urb, -err);
665 usb_unanchor_urb(urb);
673 static void btusb_isoc_complete(struct urb *urb)
675 struct hci_dev *hdev = urb->context;
676 struct btusb_data *data = hci_get_drvdata(hdev);
679 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
682 if (!test_bit(HCI_RUNNING, &hdev->flags))
685 if (urb->status == 0) {
686 for (i = 0; i < urb->number_of_packets; i++) {
687 unsigned int offset = urb->iso_frame_desc[i].offset;
688 unsigned int length = urb->iso_frame_desc[i].actual_length;
690 if (urb->iso_frame_desc[i].status)
693 hdev->stat.byte_rx += length;
695 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
697 BT_ERR("%s corrupted SCO packet", hdev->name);
701 } else if (urb->status == -ENOENT) {
702 /* Avoid suspend failed when usb_kill_urb */
706 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
709 usb_anchor_urb(urb, &data->isoc_anchor);
711 err = usb_submit_urb(urb, GFP_ATOMIC);
713 /* -EPERM: urb is being killed;
714 * -ENODEV: device got disconnected */
715 if (err != -EPERM && err != -ENODEV)
716 BT_ERR("%s urb %p failed to resubmit (%d)",
717 hdev->name, urb, -err);
718 usb_unanchor_urb(urb);
722 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
726 BT_DBG("len %d mtu %d", len, mtu);
728 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
729 i++, offset += mtu, len -= mtu) {
730 urb->iso_frame_desc[i].offset = offset;
731 urb->iso_frame_desc[i].length = mtu;
734 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
735 urb->iso_frame_desc[i].offset = offset;
736 urb->iso_frame_desc[i].length = len;
740 urb->number_of_packets = i;
743 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
745 struct btusb_data *data = hci_get_drvdata(hdev);
751 BT_DBG("%s", hdev->name);
753 if (!data->isoc_rx_ep)
756 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
760 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
761 BTUSB_MAX_ISOC_FRAMES;
763 buf = kmalloc(size, mem_flags);
769 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
771 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
772 hdev, data->isoc_rx_ep->bInterval);
774 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
776 __fill_isoc_descriptor(urb, size,
777 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
779 usb_anchor_urb(urb, &data->isoc_anchor);
781 err = usb_submit_urb(urb, mem_flags);
783 if (err != -EPERM && err != -ENODEV)
784 BT_ERR("%s urb %p submission failed (%d)",
785 hdev->name, urb, -err);
786 usb_unanchor_urb(urb);
794 static void btusb_tx_complete(struct urb *urb)
796 struct sk_buff *skb = urb->context;
797 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
798 struct btusb_data *data = hci_get_drvdata(hdev);
800 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
803 if (!test_bit(HCI_RUNNING, &hdev->flags))
807 hdev->stat.byte_tx += urb->transfer_buffer_length;
812 spin_lock(&data->txlock);
813 data->tx_in_flight--;
814 spin_unlock(&data->txlock);
816 kfree(urb->setup_packet);
821 static void btusb_isoc_tx_complete(struct urb *urb)
823 struct sk_buff *skb = urb->context;
824 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
826 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
829 if (!test_bit(HCI_RUNNING, &hdev->flags))
833 hdev->stat.byte_tx += urb->transfer_buffer_length;
838 kfree(urb->setup_packet);
843 static int btusb_open(struct hci_dev *hdev)
845 struct btusb_data *data = hci_get_drvdata(hdev);
848 BT_DBG("%s", hdev->name);
850 err = usb_autopm_get_interface(data->intf);
854 data->intf->needs_remote_wakeup = 1;
856 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
859 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
862 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
866 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
868 usb_kill_anchored_urbs(&data->intr_anchor);
872 set_bit(BTUSB_BULK_RUNNING, &data->flags);
873 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
876 usb_autopm_put_interface(data->intf);
880 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
881 clear_bit(HCI_RUNNING, &hdev->flags);
882 usb_autopm_put_interface(data->intf);
886 static void btusb_stop_traffic(struct btusb_data *data)
888 usb_kill_anchored_urbs(&data->intr_anchor);
889 usb_kill_anchored_urbs(&data->bulk_anchor);
890 usb_kill_anchored_urbs(&data->isoc_anchor);
893 static int btusb_close(struct hci_dev *hdev)
895 struct btusb_data *data = hci_get_drvdata(hdev);
898 BT_DBG("%s", hdev->name);
900 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
903 cancel_work_sync(&data->work);
904 cancel_work_sync(&data->waker);
906 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
907 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
908 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
910 btusb_stop_traffic(data);
911 btusb_free_frags(data);
913 err = usb_autopm_get_interface(data->intf);
917 data->intf->needs_remote_wakeup = 0;
918 usb_autopm_put_interface(data->intf);
921 usb_scuttle_anchored_urbs(&data->deferred);
925 static int btusb_flush(struct hci_dev *hdev)
927 struct btusb_data *data = hci_get_drvdata(hdev);
929 BT_DBG("%s", hdev->name);
931 usb_kill_anchored_urbs(&data->tx_anchor);
932 btusb_free_frags(data);
937 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
939 struct btusb_data *data = hci_get_drvdata(hdev);
940 struct usb_ctrlrequest *dr;
944 urb = usb_alloc_urb(0, GFP_KERNEL);
946 return ERR_PTR(-ENOMEM);
948 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
951 return ERR_PTR(-ENOMEM);
954 dr->bRequestType = data->cmdreq_type;
958 dr->wLength = __cpu_to_le16(skb->len);
960 pipe = usb_sndctrlpipe(data->udev, 0x00);
962 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
963 skb->data, skb->len, btusb_tx_complete, skb);
965 skb->dev = (void *)hdev;
970 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
972 struct btusb_data *data = hci_get_drvdata(hdev);
976 if (!data->bulk_tx_ep)
977 return ERR_PTR(-ENODEV);
979 urb = usb_alloc_urb(0, GFP_KERNEL);
981 return ERR_PTR(-ENOMEM);
983 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
985 usb_fill_bulk_urb(urb, data->udev, pipe,
986 skb->data, skb->len, btusb_tx_complete, skb);
988 skb->dev = (void *)hdev;
993 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
995 struct btusb_data *data = hci_get_drvdata(hdev);
999 if (!data->isoc_tx_ep)
1000 return ERR_PTR(-ENODEV);
1002 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1004 return ERR_PTR(-ENOMEM);
1006 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1008 usb_fill_int_urb(urb, data->udev, pipe,
1009 skb->data, skb->len, btusb_isoc_tx_complete,
1010 skb, data->isoc_tx_ep->bInterval);
1012 urb->transfer_flags = URB_ISO_ASAP;
1014 __fill_isoc_descriptor(urb, skb->len,
1015 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1017 skb->dev = (void *)hdev;
1022 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1024 struct btusb_data *data = hci_get_drvdata(hdev);
1027 usb_anchor_urb(urb, &data->tx_anchor);
1029 err = usb_submit_urb(urb, GFP_KERNEL);
1031 if (err != -EPERM && err != -ENODEV)
1032 BT_ERR("%s urb %p submission failed (%d)",
1033 hdev->name, urb, -err);
1034 kfree(urb->setup_packet);
1035 usb_unanchor_urb(urb);
1037 usb_mark_last_busy(data->udev);
1044 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1046 struct btusb_data *data = hci_get_drvdata(hdev);
1047 unsigned long flags;
1050 spin_lock_irqsave(&data->txlock, flags);
1051 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1053 data->tx_in_flight++;
1054 spin_unlock_irqrestore(&data->txlock, flags);
1057 return submit_tx_urb(hdev, urb);
1059 usb_anchor_urb(urb, &data->deferred);
1060 schedule_work(&data->waker);
1066 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1070 BT_DBG("%s", hdev->name);
1072 if (!test_bit(HCI_RUNNING, &hdev->flags))
1075 switch (bt_cb(skb)->pkt_type) {
1076 case HCI_COMMAND_PKT:
1077 urb = alloc_ctrl_urb(hdev, skb);
1079 return PTR_ERR(urb);
1081 hdev->stat.cmd_tx++;
1082 return submit_or_queue_tx_urb(hdev, urb);
1084 case HCI_ACLDATA_PKT:
1085 urb = alloc_bulk_urb(hdev, skb);
1087 return PTR_ERR(urb);
1089 hdev->stat.acl_tx++;
1090 return submit_or_queue_tx_urb(hdev, urb);
1092 case HCI_SCODATA_PKT:
1093 if (hci_conn_num(hdev, SCO_LINK) < 1)
1096 urb = alloc_isoc_urb(hdev, skb);
1098 return PTR_ERR(urb);
1100 hdev->stat.sco_tx++;
1101 return submit_tx_urb(hdev, urb);
1107 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1109 struct btusb_data *data = hci_get_drvdata(hdev);
1111 BT_DBG("%s evt %d", hdev->name, evt);
1113 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1114 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1115 schedule_work(&data->work);
1119 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1121 struct btusb_data *data = hci_get_drvdata(hdev);
1122 struct usb_interface *intf = data->isoc;
1123 struct usb_endpoint_descriptor *ep_desc;
1129 err = usb_set_interface(data->udev, 1, altsetting);
1131 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1135 data->isoc_altsetting = altsetting;
1137 data->isoc_tx_ep = NULL;
1138 data->isoc_rx_ep = NULL;
1140 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1141 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1143 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1144 data->isoc_tx_ep = ep_desc;
1148 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1149 data->isoc_rx_ep = ep_desc;
1154 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1155 BT_ERR("%s invalid SCO descriptors", hdev->name);
1162 static void btusb_work(struct work_struct *work)
1164 struct btusb_data *data = container_of(work, struct btusb_data, work);
1165 struct hci_dev *hdev = data->hdev;
1169 if (data->sco_num > 0) {
1170 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1171 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1173 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1174 usb_kill_anchored_urbs(&data->isoc_anchor);
1178 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1181 if (hdev->voice_setting & 0x0020) {
1182 static const int alts[3] = { 2, 4, 5 };
1184 new_alts = alts[data->sco_num - 1];
1186 new_alts = data->sco_num;
1189 if (data->isoc_altsetting != new_alts) {
1190 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1191 usb_kill_anchored_urbs(&data->isoc_anchor);
1193 if (__set_isoc_interface(hdev, new_alts) < 0)
1197 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1198 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1199 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1201 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1204 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1205 usb_kill_anchored_urbs(&data->isoc_anchor);
1207 __set_isoc_interface(hdev, 0);
1208 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1209 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1213 static void btusb_waker(struct work_struct *work)
1215 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1218 err = usb_autopm_get_interface(data->intf);
1222 usb_autopm_put_interface(data->intf);
1225 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1227 struct sk_buff *skb;
1230 BT_DBG("%s", hdev->name);
1232 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1234 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1241 static int btusb_setup_csr(struct hci_dev *hdev)
1243 struct hci_rp_read_local_version *rp;
1244 struct sk_buff *skb;
1247 BT_DBG("%s", hdev->name);
1249 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1252 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1253 return -PTR_ERR(skb);
1256 rp = (struct hci_rp_read_local_version *)skb->data;
1259 if (le16_to_cpu(rp->manufacturer) != 10) {
1260 /* Clear the reset quirk since this is not an actual
1261 * early Bluetooth 1.1 device from CSR.
1263 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1265 /* These fake CSR controllers have all a broken
1266 * stored link key handling and so just disable it.
1268 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1273 ret = -bt_to_errno(rp->status);
1280 struct intel_version {
1293 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1294 struct intel_version *ver)
1296 const struct firmware *fw;
1300 snprintf(fwname, sizeof(fwname),
1301 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1302 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1303 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1304 ver->fw_build_ww, ver->fw_build_yy);
1306 ret = request_firmware(&fw, fwname, &hdev->dev);
1308 if (ret == -EINVAL) {
1309 BT_ERR("%s Intel firmware file request failed (%d)",
1314 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1315 hdev->name, fwname, ret);
1317 /* If the correct firmware patch file is not found, use the
1318 * default firmware patch file instead
1320 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1321 ver->hw_platform, ver->hw_variant);
1322 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1323 BT_ERR("%s failed to open default Intel fw file: %s",
1324 hdev->name, fwname);
1329 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1334 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1335 const struct firmware *fw,
1336 const u8 **fw_ptr, int *disable_patch)
1338 struct sk_buff *skb;
1339 struct hci_command_hdr *cmd;
1340 const u8 *cmd_param;
1341 struct hci_event_hdr *evt = NULL;
1342 const u8 *evt_param = NULL;
1343 int remain = fw->size - (*fw_ptr - fw->data);
1345 /* The first byte indicates the types of the patch command or event.
1346 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1347 * in the current firmware buffer doesn't start with 0x01 or
1348 * the size of remain buffer is smaller than HCI command header,
1349 * the firmware file is corrupted and it should stop the patching
1352 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1353 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1359 cmd = (struct hci_command_hdr *)(*fw_ptr);
1360 *fw_ptr += sizeof(*cmd);
1361 remain -= sizeof(*cmd);
1363 /* Ensure that the remain firmware data is long enough than the length
1364 * of command parameter. If not, the firmware file is corrupted.
1366 if (remain < cmd->plen) {
1367 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1371 /* If there is a command that loads a patch in the firmware
1372 * file, then enable the patch upon success, otherwise just
1373 * disable the manufacturer mode, for example patch activation
1374 * is not required when the default firmware patch file is used
1375 * because there are no patch data to load.
1377 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1380 cmd_param = *fw_ptr;
1381 *fw_ptr += cmd->plen;
1382 remain -= cmd->plen;
1384 /* This reads the expected events when the above command is sent to the
1385 * device. Some vendor commands expects more than one events, for
1386 * example command status event followed by vendor specific event.
1387 * For this case, it only keeps the last expected event. so the command
1388 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1389 * last expected event.
1391 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1395 evt = (struct hci_event_hdr *)(*fw_ptr);
1396 *fw_ptr += sizeof(*evt);
1397 remain -= sizeof(*evt);
1399 if (remain < evt->plen) {
1400 BT_ERR("%s Intel fw corrupted: invalid evt len",
1405 evt_param = *fw_ptr;
1406 *fw_ptr += evt->plen;
1407 remain -= evt->plen;
1410 /* Every HCI commands in the firmware file has its correspond event.
1411 * If event is not found or remain is smaller than zero, the firmware
1412 * file is corrupted.
1414 if (!evt || !evt_param || remain < 0) {
1415 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1419 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1420 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1422 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1423 hdev->name, cmd->opcode, PTR_ERR(skb));
1424 return PTR_ERR(skb);
1427 /* It ensures that the returned event matches the event data read from
1428 * the firmware file. At fist, it checks the length and then
1429 * the contents of the event.
1431 if (skb->len != evt->plen) {
1432 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1433 le16_to_cpu(cmd->opcode));
1438 if (memcmp(skb->data, evt_param, evt->plen)) {
1439 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1440 hdev->name, le16_to_cpu(cmd->opcode));
1449 #define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1451 static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1453 struct sk_buff *skb;
1454 struct hci_rp_read_bd_addr *rp;
1456 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1459 BT_ERR("%s reading Intel device address failed (%ld)",
1460 hdev->name, PTR_ERR(skb));
1461 return PTR_ERR(skb);
1464 if (skb->len != sizeof(*rp)) {
1465 BT_ERR("%s Intel device address length mismatch", hdev->name);
1470 rp = (struct hci_rp_read_bd_addr *)skb->data;
1472 BT_ERR("%s Intel device address result failed (%02x)",
1473 hdev->name, rp->status);
1475 return -bt_to_errno(rp->status);
1478 /* For some Intel based controllers, the default Bluetooth device
1479 * address 00:03:19:9E:8B:00 can be found. These controllers are
1480 * fully operational, but have the danger of duplicate addresses
1481 * and that in turn can cause problems with Bluetooth operation.
1483 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
1484 BT_ERR("%s found Intel default device address (%pMR)",
1485 hdev->name, &rp->bdaddr);
1486 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1494 static int btusb_setup_intel(struct hci_dev *hdev)
1496 struct sk_buff *skb;
1497 const struct firmware *fw;
1500 struct intel_version *ver;
1502 const u8 mfg_enable[] = { 0x01, 0x00 };
1503 const u8 mfg_disable[] = { 0x00, 0x00 };
1504 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1505 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1507 BT_DBG("%s", hdev->name);
1509 /* The controller has a bug with the first HCI command sent to it
1510 * returning number of completed commands as zero. This would stall the
1511 * command processing in the Bluetooth core.
1513 * As a workaround, send HCI Reset command first which will reset the
1514 * number of completed commands and allow normal command processing
1517 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1519 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1520 hdev->name, PTR_ERR(skb));
1521 return PTR_ERR(skb);
1525 /* Read Intel specific controller version first to allow selection of
1526 * which firmware file to load.
1528 * The returned information are hardware variant and revision plus
1529 * firmware variant, revision and build number.
1531 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1533 BT_ERR("%s reading Intel fw version command failed (%ld)",
1534 hdev->name, PTR_ERR(skb));
1535 return PTR_ERR(skb);
1538 if (skb->len != sizeof(*ver)) {
1539 BT_ERR("%s Intel version event length mismatch", hdev->name);
1544 ver = (struct intel_version *)skb->data;
1546 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1549 return -bt_to_errno(ver->status);
1552 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1553 hdev->name, ver->hw_platform, ver->hw_variant,
1554 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1555 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1558 /* fw_patch_num indicates the version of patch the device currently
1559 * have. If there is no patch data in the device, it is always 0x00.
1560 * So, if it is other than 0x00, no need to patch the deivce again.
1562 if (ver->fw_patch_num) {
1563 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1564 hdev->name, ver->fw_patch_num);
1566 btusb_check_bdaddr_intel(hdev);
1570 /* Opens the firmware patch file based on the firmware version read
1571 * from the controller. If it fails to open the matching firmware
1572 * patch file, it tries to open the default firmware patch file.
1573 * If no patch file is found, allow the device to operate without
1576 fw = btusb_setup_intel_get_fw(hdev, ver);
1579 btusb_check_bdaddr_intel(hdev);
1584 /* This Intel specific command enables the manufacturer mode of the
1587 * Only while this mode is enabled, the driver can download the
1588 * firmware patch data and configuration parameters.
1590 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1592 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1593 hdev->name, PTR_ERR(skb));
1594 release_firmware(fw);
1595 return PTR_ERR(skb);
1599 u8 evt_status = skb->data[0];
1601 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1602 hdev->name, evt_status);
1604 release_firmware(fw);
1605 return -bt_to_errno(evt_status);
1611 /* The firmware data file consists of list of Intel specific HCI
1612 * commands and its expected events. The first byte indicates the
1613 * type of the message, either HCI command or HCI event.
1615 * It reads the command and its expected event from the firmware file,
1616 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1617 * the returned event is compared with the event read from the firmware
1618 * file and it will continue until all the messages are downloaded to
1621 * Once the firmware patching is completed successfully,
1622 * the manufacturer mode is disabled with reset and activating the
1625 * If the firmware patching fails, the manufacturer mode is
1626 * disabled with reset and deactivating the patch.
1628 * If the default patch file is used, no reset is done when disabling
1631 while (fw->size > fw_ptr - fw->data) {
1634 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1637 goto exit_mfg_deactivate;
1640 release_firmware(fw);
1643 goto exit_mfg_disable;
1645 /* Patching completed successfully and disable the manufacturer mode
1646 * with reset and activate the downloaded firmware patches.
1648 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1649 mfg_reset_activate, HCI_INIT_TIMEOUT);
1651 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1652 hdev->name, PTR_ERR(skb));
1653 return PTR_ERR(skb);
1657 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1660 btusb_check_bdaddr_intel(hdev);
1664 /* Disable the manufacturer mode without reset */
1665 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1668 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1669 hdev->name, PTR_ERR(skb));
1670 return PTR_ERR(skb);
1674 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1676 btusb_check_bdaddr_intel(hdev);
1679 exit_mfg_deactivate:
1680 release_firmware(fw);
1682 /* Patching failed. Disable the manufacturer mode with reset and
1683 * deactivate the downloaded firmware patches.
1685 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1686 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1688 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1689 hdev->name, PTR_ERR(skb));
1690 return PTR_ERR(skb);
1694 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1697 btusb_check_bdaddr_intel(hdev);
1701 static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1703 struct sk_buff *skb;
1706 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1709 BT_ERR("%s: changing Intel device address failed (%ld)",
1718 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1719 const bdaddr_t *bdaddr)
1721 struct sk_buff *skb;
1726 buf[1] = sizeof(bdaddr_t);
1727 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1729 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1732 BT_ERR("%s: changing Marvell device address failed (%ld)",
1741 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1743 static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1745 struct btusb_data *data = hci_get_drvdata(hdev);
1746 struct usb_device *udev = data->udev;
1748 const struct firmware *fw;
1751 const struct hci_command_hdr *cmd;
1752 const u8 *cmd_param;
1754 struct sk_buff *skb;
1755 struct hci_rp_read_local_version *ver;
1756 struct hci_rp_read_bd_addr *bda;
1759 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1760 udev->product ? udev->product : "BCM",
1761 le16_to_cpu(udev->descriptor.idVendor),
1762 le16_to_cpu(udev->descriptor.idProduct));
1764 ret = request_firmware(&fw, fw_name, &hdev->dev);
1766 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
1771 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1774 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1779 /* Read Local Version Info */
1780 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1784 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1789 if (skb->len != sizeof(*ver)) {
1790 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1797 ver = (struct hci_rp_read_local_version *)skb->data;
1798 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1799 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1800 ver->lmp_ver, ver->lmp_subver);
1803 /* Start Download */
1804 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1807 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
1813 /* 50 msec delay after Download Minidrv completes */
1819 while (fw_size >= sizeof(*cmd)) {
1820 cmd = (struct hci_command_hdr *)fw_ptr;
1821 fw_ptr += sizeof(*cmd);
1822 fw_size -= sizeof(*cmd);
1824 if (fw_size < cmd->plen) {
1825 BT_ERR("%s: BCM: patch %s is corrupted",
1826 hdev->name, fw_name);
1832 fw_ptr += cmd->plen;
1833 fw_size -= cmd->plen;
1835 opcode = le16_to_cpu(cmd->opcode);
1837 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1841 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
1842 hdev->name, opcode, ret);
1848 /* 250 msec delay after Launch Ram completes */
1853 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1856 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1861 /* Read Local Version Info */
1862 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1866 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1871 if (skb->len != sizeof(*ver)) {
1872 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1879 ver = (struct hci_rp_read_local_version *)skb->data;
1880 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1881 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1882 ver->lmp_ver, ver->lmp_subver);
1885 /* Read BD Address */
1886 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1890 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
1895 if (skb->len != sizeof(*bda)) {
1896 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
1903 bda = (struct hci_rp_read_bd_addr *)skb->data;
1905 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1906 hdev->name, bda->status);
1908 ret = -bt_to_errno(bda->status);
1912 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1913 * with no configured address.
1915 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
1916 BT_INFO("%s: BCM: using default device address (%pMR)",
1917 hdev->name, &bda->bdaddr);
1918 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1924 release_firmware(fw);
1929 static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1931 struct sk_buff *skb;
1934 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1937 BT_ERR("%s: BCM: Change address command failed (%ld)",
1946 static int btusb_probe(struct usb_interface *intf,
1947 const struct usb_device_id *id)
1949 struct usb_endpoint_descriptor *ep_desc;
1950 struct btusb_data *data;
1951 struct hci_dev *hdev;
1954 BT_DBG("intf %p id %p", intf, id);
1956 /* interface numbers are hardcoded in the spec */
1957 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1960 if (!id->driver_info) {
1961 const struct usb_device_id *match;
1963 match = usb_match_id(intf, blacklist_table);
1968 if (id->driver_info == BTUSB_IGNORE)
1971 if (id->driver_info & BTUSB_ATH3012) {
1972 struct usb_device *udev = interface_to_usbdev(intf);
1974 /* Old firmware would otherwise let ath3k driver load
1975 * patch and sysconfig files */
1976 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1980 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1984 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1985 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1987 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1988 data->intr_ep = ep_desc;
1992 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1993 data->bulk_tx_ep = ep_desc;
1997 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1998 data->bulk_rx_ep = ep_desc;
2003 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2006 data->cmdreq_type = USB_TYPE_CLASS;
2008 data->udev = interface_to_usbdev(intf);
2011 INIT_WORK(&data->work, btusb_work);
2012 INIT_WORK(&data->waker, btusb_waker);
2013 init_usb_anchor(&data->deferred);
2014 init_usb_anchor(&data->tx_anchor);
2015 spin_lock_init(&data->txlock);
2017 init_usb_anchor(&data->intr_anchor);
2018 init_usb_anchor(&data->bulk_anchor);
2019 init_usb_anchor(&data->isoc_anchor);
2020 spin_lock_init(&data->rxlock);
2022 data->recv_bulk = btusb_recv_bulk;
2024 hdev = hci_alloc_dev();
2028 hdev->bus = HCI_USB;
2029 hci_set_drvdata(hdev, data);
2033 SET_HCIDEV_DEV(hdev, &intf->dev);
2035 hdev->open = btusb_open;
2036 hdev->close = btusb_close;
2037 hdev->flush = btusb_flush;
2038 hdev->send = btusb_send_frame;
2039 hdev->notify = btusb_notify;
2041 if (id->driver_info & BTUSB_BCM92035)
2042 hdev->setup = btusb_setup_bcm92035;
2044 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2045 hdev->setup = btusb_setup_bcm_patchram;
2046 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
2047 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2050 if (id->driver_info & BTUSB_INTEL) {
2051 hdev->setup = btusb_setup_intel;
2052 hdev->set_bdaddr = btusb_set_bdaddr_intel;
2055 if (id->driver_info & BTUSB_MARVELL)
2056 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2058 if (id->driver_info & BTUSB_INTEL_BOOT)
2059 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2061 /* Interface numbers are hardcoded in the specification */
2062 data->isoc = usb_ifnum_to_if(data->udev, 1);
2065 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2067 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2068 if (!disable_scofix)
2069 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2072 if (id->driver_info & BTUSB_BROKEN_ISOC)
2075 if (id->driver_info & BTUSB_DIGIANSWER) {
2076 data->cmdreq_type = USB_TYPE_VENDOR;
2077 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2080 if (id->driver_info & BTUSB_CSR) {
2081 struct usb_device *udev = data->udev;
2082 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2084 /* Old firmware would otherwise execute USB reset */
2085 if (bcdDevice < 0x117)
2086 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2088 /* Fake CSR devices with broken commands */
2089 if (bcdDevice <= 0x100)
2090 hdev->setup = btusb_setup_csr;
2093 if (id->driver_info & BTUSB_SNIFFER) {
2094 struct usb_device *udev = data->udev;
2096 /* New sniffer firmware has crippled HCI interface */
2097 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2098 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2101 if (id->driver_info & BTUSB_INTEL_BOOT) {
2102 /* A bug in the bootloader causes that interrupt interface is
2103 * only enabled after receiving SetInterface(0, AltSetting=0).
2105 err = usb_set_interface(data->udev, 0, 0);
2107 BT_ERR("failed to set interface 0, alt 0 %d", err);
2114 err = usb_driver_claim_interface(&btusb_driver,
2122 err = hci_register_dev(hdev);
2128 usb_set_intfdata(intf, data);
2133 static void btusb_disconnect(struct usb_interface *intf)
2135 struct btusb_data *data = usb_get_intfdata(intf);
2136 struct hci_dev *hdev;
2138 BT_DBG("intf %p", intf);
2144 usb_set_intfdata(data->intf, NULL);
2147 usb_set_intfdata(data->isoc, NULL);
2149 hci_unregister_dev(hdev);
2151 if (intf == data->isoc)
2152 usb_driver_release_interface(&btusb_driver, data->intf);
2153 else if (data->isoc)
2154 usb_driver_release_interface(&btusb_driver, data->isoc);
2156 btusb_free_frags(data);
2161 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2163 struct btusb_data *data = usb_get_intfdata(intf);
2165 BT_DBG("intf %p", intf);
2167 if (data->suspend_count++)
2170 spin_lock_irq(&data->txlock);
2171 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
2172 set_bit(BTUSB_SUSPENDING, &data->flags);
2173 spin_unlock_irq(&data->txlock);
2175 spin_unlock_irq(&data->txlock);
2176 data->suspend_count--;
2180 cancel_work_sync(&data->work);
2182 btusb_stop_traffic(data);
2183 usb_kill_anchored_urbs(&data->tx_anchor);
2188 static void play_deferred(struct btusb_data *data)
2193 while ((urb = usb_get_from_anchor(&data->deferred))) {
2194 err = usb_submit_urb(urb, GFP_ATOMIC);
2198 data->tx_in_flight++;
2200 usb_scuttle_anchored_urbs(&data->deferred);
2203 static int btusb_resume(struct usb_interface *intf)
2205 struct btusb_data *data = usb_get_intfdata(intf);
2206 struct hci_dev *hdev = data->hdev;
2209 BT_DBG("intf %p", intf);
2211 if (--data->suspend_count)
2214 if (!test_bit(HCI_RUNNING, &hdev->flags))
2217 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2218 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2220 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2225 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
2226 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2228 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2232 btusb_submit_bulk_urb(hdev, GFP_NOIO);
2235 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2236 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2237 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2239 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2242 spin_lock_irq(&data->txlock);
2243 play_deferred(data);
2244 clear_bit(BTUSB_SUSPENDING, &data->flags);
2245 spin_unlock_irq(&data->txlock);
2246 schedule_work(&data->work);
2251 usb_scuttle_anchored_urbs(&data->deferred);
2253 spin_lock_irq(&data->txlock);
2254 clear_bit(BTUSB_SUSPENDING, &data->flags);
2255 spin_unlock_irq(&data->txlock);
2261 static struct usb_driver btusb_driver = {
2263 .probe = btusb_probe,
2264 .disconnect = btusb_disconnect,
2266 .suspend = btusb_suspend,
2267 .resume = btusb_resume,
2269 .id_table = btusb_table,
2270 .supports_autosuspend = 1,
2271 .disable_hub_initiated_lpm = 1,
2274 module_usb_driver(btusb_driver);
2276 module_param(disable_scofix, bool, 0644);
2277 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2279 module_param(force_scofix, bool, 0644);
2280 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2282 module_param(reset, bool, 0644);
2283 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2285 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2286 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2287 MODULE_VERSION(VERSION);
2288 MODULE_LICENSE("GPL");