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) },
115 /* Broadcom devices with vendor specific id */
116 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
117 .driver_info = BTUSB_BCM_PATCHRAM },
119 /* ASUSTek Computer - Broadcom based */
120 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
122 /* Belkin F8065bf - Broadcom based */
123 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
125 /* IMC Networks - Broadcom based */
126 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
128 /* Intel Bluetooth USB Bootloader (RAM module) */
129 { USB_DEVICE(0x8087, 0x0a5a),
130 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
132 { } /* Terminating entry */
135 MODULE_DEVICE_TABLE(usb, btusb_table);
137 static const struct usb_device_id blacklist_table[] = {
138 /* CSR BlueCore devices */
139 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
141 /* Broadcom BCM2033 without firmware */
142 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
144 /* Atheros 3011 with sflash firmware */
145 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
146 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
147 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
148 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
149 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
150 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
152 /* Atheros AR9285 Malbec with sflash firmware */
153 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
155 /* Atheros 3012 with sflash firmware */
156 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
190 /* Atheros AR5BBU12 with sflash firmware */
191 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
193 /* Atheros AR5BBU12 with sflash firmware */
194 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
197 /* Broadcom BCM2035 */
198 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
199 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
200 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
202 /* Broadcom BCM2045 */
203 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
204 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
206 /* IBM/Lenovo ThinkPad with Broadcom chip */
207 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
208 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
210 /* HP laptop with Broadcom chip */
211 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
213 /* Dell laptop with Broadcom chip */
214 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
216 /* Dell Wireless 370 and 410 devices */
217 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
218 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
220 /* Belkin F8T012 and F8T013 devices */
221 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
222 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
224 /* Asus WL-BTD202 device */
225 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
227 /* Kensington Bluetooth USB adapter */
228 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
230 /* RTX Telecom based adapters with buggy SCO support */
231 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
232 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
234 /* CONWISE Technology based adapters with buggy SCO support */
235 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
237 /* Digianswer devices */
238 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
239 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
241 /* CSR BlueCore Bluetooth Sniffer */
242 { USB_DEVICE(0x0a12, 0x0002),
243 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
245 /* Frontline ComProbe Bluetooth Sniffer */
246 { USB_DEVICE(0x16d3, 0x0002),
247 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
249 /* Intel Bluetooth device */
250 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
251 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
254 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
255 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
257 { } /* Terminating entry */
260 #define BTUSB_MAX_ISOC_FRAMES 10
262 #define BTUSB_INTR_RUNNING 0
263 #define BTUSB_BULK_RUNNING 1
264 #define BTUSB_ISOC_RUNNING 2
265 #define BTUSB_SUSPENDING 3
266 #define BTUSB_DID_ISO_RESUME 4
269 struct hci_dev *hdev;
270 struct usb_device *udev;
271 struct usb_interface *intf;
272 struct usb_interface *isoc;
276 struct work_struct work;
277 struct work_struct waker;
279 struct usb_anchor deferred;
280 struct usb_anchor tx_anchor;
284 struct usb_anchor intr_anchor;
285 struct usb_anchor bulk_anchor;
286 struct usb_anchor isoc_anchor;
289 struct sk_buff *evt_skb;
290 struct sk_buff *acl_skb;
291 struct sk_buff *sco_skb;
293 struct usb_endpoint_descriptor *intr_ep;
294 struct usb_endpoint_descriptor *bulk_tx_ep;
295 struct usb_endpoint_descriptor *bulk_rx_ep;
296 struct usb_endpoint_descriptor *isoc_tx_ep;
297 struct usb_endpoint_descriptor *isoc_rx_ep;
301 unsigned int sco_num;
305 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
308 static inline void btusb_free_frags(struct btusb_data *data)
312 spin_lock_irqsave(&data->rxlock, flags);
314 kfree_skb(data->evt_skb);
315 data->evt_skb = NULL;
317 kfree_skb(data->acl_skb);
318 data->acl_skb = NULL;
320 kfree_skb(data->sco_skb);
321 data->sco_skb = NULL;
323 spin_unlock_irqrestore(&data->rxlock, flags);
326 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
331 spin_lock(&data->rxlock);
338 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
344 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
345 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
348 len = min_t(uint, bt_cb(skb)->expect, count);
349 memcpy(skb_put(skb, len), buffer, len);
353 bt_cb(skb)->expect -= len;
355 if (skb->len == HCI_EVENT_HDR_SIZE) {
356 /* Complete event header */
357 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
359 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
368 if (bt_cb(skb)->expect == 0) {
370 hci_recv_frame(data->hdev, skb);
376 spin_unlock(&data->rxlock);
381 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
386 spin_lock(&data->rxlock);
393 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
399 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
400 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
403 len = min_t(uint, bt_cb(skb)->expect, count);
404 memcpy(skb_put(skb, len), buffer, len);
408 bt_cb(skb)->expect -= len;
410 if (skb->len == HCI_ACL_HDR_SIZE) {
411 __le16 dlen = hci_acl_hdr(skb)->dlen;
413 /* Complete ACL header */
414 bt_cb(skb)->expect = __le16_to_cpu(dlen);
416 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
425 if (bt_cb(skb)->expect == 0) {
427 hci_recv_frame(data->hdev, skb);
433 spin_unlock(&data->rxlock);
438 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
443 spin_lock(&data->rxlock);
450 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
456 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
457 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
460 len = min_t(uint, bt_cb(skb)->expect, count);
461 memcpy(skb_put(skb, len), buffer, len);
465 bt_cb(skb)->expect -= len;
467 if (skb->len == HCI_SCO_HDR_SIZE) {
468 /* Complete SCO header */
469 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
471 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
480 if (bt_cb(skb)->expect == 0) {
482 hci_recv_frame(data->hdev, skb);
488 spin_unlock(&data->rxlock);
493 static void btusb_intr_complete(struct urb *urb)
495 struct hci_dev *hdev = urb->context;
496 struct btusb_data *data = hci_get_drvdata(hdev);
499 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
502 if (!test_bit(HCI_RUNNING, &hdev->flags))
505 if (urb->status == 0) {
506 hdev->stat.byte_rx += urb->actual_length;
508 if (btusb_recv_intr(data, urb->transfer_buffer,
509 urb->actual_length) < 0) {
510 BT_ERR("%s corrupted event packet", hdev->name);
513 } else if (urb->status == -ENOENT) {
514 /* Avoid suspend failed when usb_kill_urb */
518 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
521 usb_mark_last_busy(data->udev);
522 usb_anchor_urb(urb, &data->intr_anchor);
524 err = usb_submit_urb(urb, GFP_ATOMIC);
526 /* -EPERM: urb is being killed;
527 * -ENODEV: device got disconnected */
528 if (err != -EPERM && err != -ENODEV)
529 BT_ERR("%s urb %p failed to resubmit (%d)",
530 hdev->name, urb, -err);
531 usb_unanchor_urb(urb);
535 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
537 struct btusb_data *data = hci_get_drvdata(hdev);
543 BT_DBG("%s", hdev->name);
548 urb = usb_alloc_urb(0, mem_flags);
552 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
554 buf = kmalloc(size, mem_flags);
560 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
562 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
563 btusb_intr_complete, hdev, data->intr_ep->bInterval);
565 urb->transfer_flags |= URB_FREE_BUFFER;
567 usb_anchor_urb(urb, &data->intr_anchor);
569 err = usb_submit_urb(urb, mem_flags);
571 if (err != -EPERM && err != -ENODEV)
572 BT_ERR("%s urb %p submission failed (%d)",
573 hdev->name, urb, -err);
574 usb_unanchor_urb(urb);
582 static void btusb_bulk_complete(struct urb *urb)
584 struct hci_dev *hdev = urb->context;
585 struct btusb_data *data = hci_get_drvdata(hdev);
588 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
591 if (!test_bit(HCI_RUNNING, &hdev->flags))
594 if (urb->status == 0) {
595 hdev->stat.byte_rx += urb->actual_length;
597 if (data->recv_bulk(data, urb->transfer_buffer,
598 urb->actual_length) < 0) {
599 BT_ERR("%s corrupted ACL packet", hdev->name);
602 } else if (urb->status == -ENOENT) {
603 /* Avoid suspend failed when usb_kill_urb */
607 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
610 usb_anchor_urb(urb, &data->bulk_anchor);
611 usb_mark_last_busy(data->udev);
613 err = usb_submit_urb(urb, GFP_ATOMIC);
615 /* -EPERM: urb is being killed;
616 * -ENODEV: device got disconnected */
617 if (err != -EPERM && err != -ENODEV)
618 BT_ERR("%s urb %p failed to resubmit (%d)",
619 hdev->name, urb, -err);
620 usb_unanchor_urb(urb);
624 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
626 struct btusb_data *data = hci_get_drvdata(hdev);
630 int err, size = HCI_MAX_FRAME_SIZE;
632 BT_DBG("%s", hdev->name);
634 if (!data->bulk_rx_ep)
637 urb = usb_alloc_urb(0, mem_flags);
641 buf = kmalloc(size, mem_flags);
647 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
649 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
650 btusb_bulk_complete, hdev);
652 urb->transfer_flags |= URB_FREE_BUFFER;
654 usb_mark_last_busy(data->udev);
655 usb_anchor_urb(urb, &data->bulk_anchor);
657 err = usb_submit_urb(urb, mem_flags);
659 if (err != -EPERM && err != -ENODEV)
660 BT_ERR("%s urb %p submission failed (%d)",
661 hdev->name, urb, -err);
662 usb_unanchor_urb(urb);
670 static void btusb_isoc_complete(struct urb *urb)
672 struct hci_dev *hdev = urb->context;
673 struct btusb_data *data = hci_get_drvdata(hdev);
676 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
679 if (!test_bit(HCI_RUNNING, &hdev->flags))
682 if (urb->status == 0) {
683 for (i = 0; i < urb->number_of_packets; i++) {
684 unsigned int offset = urb->iso_frame_desc[i].offset;
685 unsigned int length = urb->iso_frame_desc[i].actual_length;
687 if (urb->iso_frame_desc[i].status)
690 hdev->stat.byte_rx += length;
692 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
694 BT_ERR("%s corrupted SCO packet", hdev->name);
698 } else if (urb->status == -ENOENT) {
699 /* Avoid suspend failed when usb_kill_urb */
703 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
706 usb_anchor_urb(urb, &data->isoc_anchor);
708 err = usb_submit_urb(urb, GFP_ATOMIC);
710 /* -EPERM: urb is being killed;
711 * -ENODEV: device got disconnected */
712 if (err != -EPERM && err != -ENODEV)
713 BT_ERR("%s urb %p failed to resubmit (%d)",
714 hdev->name, urb, -err);
715 usb_unanchor_urb(urb);
719 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
723 BT_DBG("len %d mtu %d", len, mtu);
725 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
726 i++, offset += mtu, len -= mtu) {
727 urb->iso_frame_desc[i].offset = offset;
728 urb->iso_frame_desc[i].length = mtu;
731 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
732 urb->iso_frame_desc[i].offset = offset;
733 urb->iso_frame_desc[i].length = len;
737 urb->number_of_packets = i;
740 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
742 struct btusb_data *data = hci_get_drvdata(hdev);
748 BT_DBG("%s", hdev->name);
750 if (!data->isoc_rx_ep)
753 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
757 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
758 BTUSB_MAX_ISOC_FRAMES;
760 buf = kmalloc(size, mem_flags);
766 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
768 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
769 hdev, data->isoc_rx_ep->bInterval);
771 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
773 __fill_isoc_descriptor(urb, size,
774 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
776 usb_anchor_urb(urb, &data->isoc_anchor);
778 err = usb_submit_urb(urb, mem_flags);
780 if (err != -EPERM && err != -ENODEV)
781 BT_ERR("%s urb %p submission failed (%d)",
782 hdev->name, urb, -err);
783 usb_unanchor_urb(urb);
791 static void btusb_tx_complete(struct urb *urb)
793 struct sk_buff *skb = urb->context;
794 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
795 struct btusb_data *data = hci_get_drvdata(hdev);
797 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
800 if (!test_bit(HCI_RUNNING, &hdev->flags))
804 hdev->stat.byte_tx += urb->transfer_buffer_length;
809 spin_lock(&data->txlock);
810 data->tx_in_flight--;
811 spin_unlock(&data->txlock);
813 kfree(urb->setup_packet);
818 static void btusb_isoc_tx_complete(struct urb *urb)
820 struct sk_buff *skb = urb->context;
821 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
823 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
826 if (!test_bit(HCI_RUNNING, &hdev->flags))
830 hdev->stat.byte_tx += urb->transfer_buffer_length;
835 kfree(urb->setup_packet);
840 static int btusb_open(struct hci_dev *hdev)
842 struct btusb_data *data = hci_get_drvdata(hdev);
845 BT_DBG("%s", hdev->name);
847 err = usb_autopm_get_interface(data->intf);
851 data->intf->needs_remote_wakeup = 1;
853 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
856 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
859 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
863 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
865 usb_kill_anchored_urbs(&data->intr_anchor);
869 set_bit(BTUSB_BULK_RUNNING, &data->flags);
870 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
873 usb_autopm_put_interface(data->intf);
877 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
878 clear_bit(HCI_RUNNING, &hdev->flags);
879 usb_autopm_put_interface(data->intf);
883 static void btusb_stop_traffic(struct btusb_data *data)
885 usb_kill_anchored_urbs(&data->intr_anchor);
886 usb_kill_anchored_urbs(&data->bulk_anchor);
887 usb_kill_anchored_urbs(&data->isoc_anchor);
890 static int btusb_close(struct hci_dev *hdev)
892 struct btusb_data *data = hci_get_drvdata(hdev);
895 BT_DBG("%s", hdev->name);
897 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
900 cancel_work_sync(&data->work);
901 cancel_work_sync(&data->waker);
903 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
904 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
905 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
907 btusb_stop_traffic(data);
908 btusb_free_frags(data);
910 err = usb_autopm_get_interface(data->intf);
914 data->intf->needs_remote_wakeup = 0;
915 usb_autopm_put_interface(data->intf);
918 usb_scuttle_anchored_urbs(&data->deferred);
922 static int btusb_flush(struct hci_dev *hdev)
924 struct btusb_data *data = hci_get_drvdata(hdev);
926 BT_DBG("%s", hdev->name);
928 usb_kill_anchored_urbs(&data->tx_anchor);
929 btusb_free_frags(data);
934 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
936 struct btusb_data *data = hci_get_drvdata(hdev);
937 struct usb_ctrlrequest *dr;
941 urb = usb_alloc_urb(0, GFP_KERNEL);
943 return ERR_PTR(-ENOMEM);
945 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
948 return ERR_PTR(-ENOMEM);
951 dr->bRequestType = data->cmdreq_type;
955 dr->wLength = __cpu_to_le16(skb->len);
957 pipe = usb_sndctrlpipe(data->udev, 0x00);
959 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
960 skb->data, skb->len, btusb_tx_complete, skb);
962 skb->dev = (void *)hdev;
967 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
969 struct btusb_data *data = hci_get_drvdata(hdev);
973 if (!data->bulk_tx_ep)
974 return ERR_PTR(-ENODEV);
976 urb = usb_alloc_urb(0, GFP_KERNEL);
978 return ERR_PTR(-ENOMEM);
980 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
982 usb_fill_bulk_urb(urb, data->udev, pipe,
983 skb->data, skb->len, btusb_tx_complete, skb);
985 skb->dev = (void *)hdev;
990 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
992 struct btusb_data *data = hci_get_drvdata(hdev);
996 if (!data->isoc_tx_ep)
997 return ERR_PTR(-ENODEV);
999 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1001 return ERR_PTR(-ENOMEM);
1003 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1005 usb_fill_int_urb(urb, data->udev, pipe,
1006 skb->data, skb->len, btusb_isoc_tx_complete,
1007 skb, data->isoc_tx_ep->bInterval);
1009 urb->transfer_flags = URB_ISO_ASAP;
1011 __fill_isoc_descriptor(urb, skb->len,
1012 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1014 skb->dev = (void *)hdev;
1019 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1021 struct btusb_data *data = hci_get_drvdata(hdev);
1024 usb_anchor_urb(urb, &data->tx_anchor);
1026 err = usb_submit_urb(urb, GFP_KERNEL);
1028 if (err != -EPERM && err != -ENODEV)
1029 BT_ERR("%s urb %p submission failed (%d)",
1030 hdev->name, urb, -err);
1031 kfree(urb->setup_packet);
1032 usb_unanchor_urb(urb);
1034 usb_mark_last_busy(data->udev);
1041 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1043 struct btusb_data *data = hci_get_drvdata(hdev);
1044 unsigned long flags;
1047 spin_lock_irqsave(&data->txlock, flags);
1048 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1050 data->tx_in_flight++;
1051 spin_unlock_irqrestore(&data->txlock, flags);
1054 return submit_tx_urb(hdev, urb);
1056 usb_anchor_urb(urb, &data->deferred);
1057 schedule_work(&data->waker);
1063 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1067 BT_DBG("%s", hdev->name);
1069 if (!test_bit(HCI_RUNNING, &hdev->flags))
1072 switch (bt_cb(skb)->pkt_type) {
1073 case HCI_COMMAND_PKT:
1074 urb = alloc_ctrl_urb(hdev, skb);
1076 return PTR_ERR(urb);
1078 hdev->stat.cmd_tx++;
1079 return submit_or_queue_tx_urb(hdev, urb);
1081 case HCI_ACLDATA_PKT:
1082 urb = alloc_bulk_urb(hdev, skb);
1084 return PTR_ERR(urb);
1086 hdev->stat.acl_tx++;
1087 return submit_or_queue_tx_urb(hdev, urb);
1089 case HCI_SCODATA_PKT:
1090 if (hci_conn_num(hdev, SCO_LINK) < 1)
1093 urb = alloc_isoc_urb(hdev, skb);
1095 return PTR_ERR(urb);
1097 hdev->stat.sco_tx++;
1098 return submit_tx_urb(hdev, urb);
1104 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1106 struct btusb_data *data = hci_get_drvdata(hdev);
1108 BT_DBG("%s evt %d", hdev->name, evt);
1110 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1111 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1112 schedule_work(&data->work);
1116 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1118 struct btusb_data *data = hci_get_drvdata(hdev);
1119 struct usb_interface *intf = data->isoc;
1120 struct usb_endpoint_descriptor *ep_desc;
1126 err = usb_set_interface(data->udev, 1, altsetting);
1128 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1132 data->isoc_altsetting = altsetting;
1134 data->isoc_tx_ep = NULL;
1135 data->isoc_rx_ep = NULL;
1137 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1138 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1140 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1141 data->isoc_tx_ep = ep_desc;
1145 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1146 data->isoc_rx_ep = ep_desc;
1151 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1152 BT_ERR("%s invalid SCO descriptors", hdev->name);
1159 static void btusb_work(struct work_struct *work)
1161 struct btusb_data *data = container_of(work, struct btusb_data, work);
1162 struct hci_dev *hdev = data->hdev;
1166 if (data->sco_num > 0) {
1167 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1168 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1170 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1171 usb_kill_anchored_urbs(&data->isoc_anchor);
1175 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1178 if (hdev->voice_setting & 0x0020) {
1179 static const int alts[3] = { 2, 4, 5 };
1181 new_alts = alts[data->sco_num - 1];
1183 new_alts = data->sco_num;
1186 if (data->isoc_altsetting != new_alts) {
1187 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1188 usb_kill_anchored_urbs(&data->isoc_anchor);
1190 if (__set_isoc_interface(hdev, new_alts) < 0)
1194 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1195 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1196 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1198 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1201 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1202 usb_kill_anchored_urbs(&data->isoc_anchor);
1204 __set_isoc_interface(hdev, 0);
1205 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1206 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1210 static void btusb_waker(struct work_struct *work)
1212 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1215 err = usb_autopm_get_interface(data->intf);
1219 usb_autopm_put_interface(data->intf);
1222 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1224 struct sk_buff *skb;
1227 BT_DBG("%s", hdev->name);
1229 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1231 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1238 static int btusb_setup_csr(struct hci_dev *hdev)
1240 struct hci_rp_read_local_version *rp;
1241 struct sk_buff *skb;
1244 BT_DBG("%s", hdev->name);
1246 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1249 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1250 return -PTR_ERR(skb);
1253 rp = (struct hci_rp_read_local_version *)skb->data;
1256 if (le16_to_cpu(rp->manufacturer) != 10) {
1257 /* Clear the reset quirk since this is not an actual
1258 * early Bluetooth 1.1 device from CSR.
1260 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1262 /* These fake CSR controllers have all a broken
1263 * stored link key handling and so just disable it.
1265 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1270 ret = -bt_to_errno(rp->status);
1277 struct intel_version {
1290 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1291 struct intel_version *ver)
1293 const struct firmware *fw;
1297 snprintf(fwname, sizeof(fwname),
1298 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1299 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1300 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1301 ver->fw_build_ww, ver->fw_build_yy);
1303 ret = request_firmware(&fw, fwname, &hdev->dev);
1305 if (ret == -EINVAL) {
1306 BT_ERR("%s Intel firmware file request failed (%d)",
1311 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1312 hdev->name, fwname, ret);
1314 /* If the correct firmware patch file is not found, use the
1315 * default firmware patch file instead
1317 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1318 ver->hw_platform, ver->hw_variant);
1319 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1320 BT_ERR("%s failed to open default Intel fw file: %s",
1321 hdev->name, fwname);
1326 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1331 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1332 const struct firmware *fw,
1333 const u8 **fw_ptr, int *disable_patch)
1335 struct sk_buff *skb;
1336 struct hci_command_hdr *cmd;
1337 const u8 *cmd_param;
1338 struct hci_event_hdr *evt = NULL;
1339 const u8 *evt_param = NULL;
1340 int remain = fw->size - (*fw_ptr - fw->data);
1342 /* The first byte indicates the types of the patch command or event.
1343 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1344 * in the current firmware buffer doesn't start with 0x01 or
1345 * the size of remain buffer is smaller than HCI command header,
1346 * the firmware file is corrupted and it should stop the patching
1349 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1350 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1356 cmd = (struct hci_command_hdr *)(*fw_ptr);
1357 *fw_ptr += sizeof(*cmd);
1358 remain -= sizeof(*cmd);
1360 /* Ensure that the remain firmware data is long enough than the length
1361 * of command parameter. If not, the firmware file is corrupted.
1363 if (remain < cmd->plen) {
1364 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1368 /* If there is a command that loads a patch in the firmware
1369 * file, then enable the patch upon success, otherwise just
1370 * disable the manufacturer mode, for example patch activation
1371 * is not required when the default firmware patch file is used
1372 * because there are no patch data to load.
1374 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1377 cmd_param = *fw_ptr;
1378 *fw_ptr += cmd->plen;
1379 remain -= cmd->plen;
1381 /* This reads the expected events when the above command is sent to the
1382 * device. Some vendor commands expects more than one events, for
1383 * example command status event followed by vendor specific event.
1384 * For this case, it only keeps the last expected event. so the command
1385 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1386 * last expected event.
1388 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1392 evt = (struct hci_event_hdr *)(*fw_ptr);
1393 *fw_ptr += sizeof(*evt);
1394 remain -= sizeof(*evt);
1396 if (remain < evt->plen) {
1397 BT_ERR("%s Intel fw corrupted: invalid evt len",
1402 evt_param = *fw_ptr;
1403 *fw_ptr += evt->plen;
1404 remain -= evt->plen;
1407 /* Every HCI commands in the firmware file has its correspond event.
1408 * If event is not found or remain is smaller than zero, the firmware
1409 * file is corrupted.
1411 if (!evt || !evt_param || remain < 0) {
1412 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1416 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1417 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1419 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1420 hdev->name, cmd->opcode, PTR_ERR(skb));
1421 return PTR_ERR(skb);
1424 /* It ensures that the returned event matches the event data read from
1425 * the firmware file. At fist, it checks the length and then
1426 * the contents of the event.
1428 if (skb->len != evt->plen) {
1429 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1430 le16_to_cpu(cmd->opcode));
1435 if (memcmp(skb->data, evt_param, evt->plen)) {
1436 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1437 hdev->name, le16_to_cpu(cmd->opcode));
1446 #define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1448 static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1450 struct sk_buff *skb;
1451 struct hci_rp_read_bd_addr *rp;
1453 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1456 BT_ERR("%s reading Intel device address failed (%ld)",
1457 hdev->name, PTR_ERR(skb));
1458 return PTR_ERR(skb);
1461 if (skb->len != sizeof(*rp)) {
1462 BT_ERR("%s Intel device address length mismatch", hdev->name);
1467 rp = (struct hci_rp_read_bd_addr *)skb->data;
1469 BT_ERR("%s Intel device address result failed (%02x)",
1470 hdev->name, rp->status);
1472 return -bt_to_errno(rp->status);
1475 /* For some Intel based controllers, the default Bluetooth device
1476 * address 00:03:19:9E:8B:00 can be found. These controllers are
1477 * fully operational, but have the danger of duplicate addresses
1478 * and that in turn can cause problems with Bluetooth operation.
1480 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
1481 BT_ERR("%s found Intel default device address (%pMR)",
1482 hdev->name, &rp->bdaddr);
1483 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1491 static int btusb_setup_intel(struct hci_dev *hdev)
1493 struct sk_buff *skb;
1494 const struct firmware *fw;
1497 struct intel_version *ver;
1499 const u8 mfg_enable[] = { 0x01, 0x00 };
1500 const u8 mfg_disable[] = { 0x00, 0x00 };
1501 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1502 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1504 BT_DBG("%s", hdev->name);
1506 /* The controller has a bug with the first HCI command sent to it
1507 * returning number of completed commands as zero. This would stall the
1508 * command processing in the Bluetooth core.
1510 * As a workaround, send HCI Reset command first which will reset the
1511 * number of completed commands and allow normal command processing
1514 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1516 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1517 hdev->name, PTR_ERR(skb));
1518 return PTR_ERR(skb);
1522 /* Read Intel specific controller version first to allow selection of
1523 * which firmware file to load.
1525 * The returned information are hardware variant and revision plus
1526 * firmware variant, revision and build number.
1528 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1530 BT_ERR("%s reading Intel fw version command failed (%ld)",
1531 hdev->name, PTR_ERR(skb));
1532 return PTR_ERR(skb);
1535 if (skb->len != sizeof(*ver)) {
1536 BT_ERR("%s Intel version event length mismatch", hdev->name);
1541 ver = (struct intel_version *)skb->data;
1543 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1546 return -bt_to_errno(ver->status);
1549 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1550 hdev->name, ver->hw_platform, ver->hw_variant,
1551 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1552 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1555 /* fw_patch_num indicates the version of patch the device currently
1556 * have. If there is no patch data in the device, it is always 0x00.
1557 * So, if it is other than 0x00, no need to patch the deivce again.
1559 if (ver->fw_patch_num) {
1560 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1561 hdev->name, ver->fw_patch_num);
1563 btusb_check_bdaddr_intel(hdev);
1567 /* Opens the firmware patch file based on the firmware version read
1568 * from the controller. If it fails to open the matching firmware
1569 * patch file, it tries to open the default firmware patch file.
1570 * If no patch file is found, allow the device to operate without
1573 fw = btusb_setup_intel_get_fw(hdev, ver);
1576 btusb_check_bdaddr_intel(hdev);
1581 /* This Intel specific command enables the manufacturer mode of the
1584 * Only while this mode is enabled, the driver can download the
1585 * firmware patch data and configuration parameters.
1587 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1589 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1590 hdev->name, PTR_ERR(skb));
1591 release_firmware(fw);
1592 return PTR_ERR(skb);
1596 u8 evt_status = skb->data[0];
1598 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1599 hdev->name, evt_status);
1601 release_firmware(fw);
1602 return -bt_to_errno(evt_status);
1608 /* The firmware data file consists of list of Intel specific HCI
1609 * commands and its expected events. The first byte indicates the
1610 * type of the message, either HCI command or HCI event.
1612 * It reads the command and its expected event from the firmware file,
1613 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1614 * the returned event is compared with the event read from the firmware
1615 * file and it will continue until all the messages are downloaded to
1618 * Once the firmware patching is completed successfully,
1619 * the manufacturer mode is disabled with reset and activating the
1622 * If the firmware patching fails, the manufacturer mode is
1623 * disabled with reset and deactivating the patch.
1625 * If the default patch file is used, no reset is done when disabling
1628 while (fw->size > fw_ptr - fw->data) {
1631 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1634 goto exit_mfg_deactivate;
1637 release_firmware(fw);
1640 goto exit_mfg_disable;
1642 /* Patching completed successfully and disable the manufacturer mode
1643 * with reset and activate the downloaded firmware patches.
1645 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1646 mfg_reset_activate, HCI_INIT_TIMEOUT);
1648 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1649 hdev->name, PTR_ERR(skb));
1650 return PTR_ERR(skb);
1654 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1657 btusb_check_bdaddr_intel(hdev);
1661 /* Disable the manufacturer mode without reset */
1662 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1665 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1666 hdev->name, PTR_ERR(skb));
1667 return PTR_ERR(skb);
1671 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1673 btusb_check_bdaddr_intel(hdev);
1676 exit_mfg_deactivate:
1677 release_firmware(fw);
1679 /* Patching failed. Disable the manufacturer mode with reset and
1680 * deactivate the downloaded firmware patches.
1682 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1683 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1685 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1686 hdev->name, PTR_ERR(skb));
1687 return PTR_ERR(skb);
1691 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1694 btusb_check_bdaddr_intel(hdev);
1698 static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1700 struct sk_buff *skb;
1703 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1706 BT_ERR("%s: changing Intel device address failed (%ld)",
1715 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1716 const bdaddr_t *bdaddr)
1718 struct sk_buff *skb;
1723 buf[1] = sizeof(bdaddr_t);
1724 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1726 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1729 BT_ERR("%s: changing Marvell device address failed (%ld)",
1738 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1740 static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1742 struct btusb_data *data = hci_get_drvdata(hdev);
1743 struct usb_device *udev = data->udev;
1745 const struct firmware *fw;
1748 const struct hci_command_hdr *cmd;
1749 const u8 *cmd_param;
1751 struct sk_buff *skb;
1752 struct hci_rp_read_local_version *ver;
1753 struct hci_rp_read_bd_addr *bda;
1756 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1757 udev->product ? udev->product : "BCM",
1758 le16_to_cpu(udev->descriptor.idVendor),
1759 le16_to_cpu(udev->descriptor.idProduct));
1761 ret = request_firmware(&fw, fw_name, &hdev->dev);
1763 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
1768 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1771 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1776 /* Read Local Version Info */
1777 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1781 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1786 if (skb->len != sizeof(*ver)) {
1787 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1794 ver = (struct hci_rp_read_local_version *)skb->data;
1795 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1796 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1797 ver->lmp_ver, ver->lmp_subver);
1800 /* Start Download */
1801 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1804 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
1810 /* 50 msec delay after Download Minidrv completes */
1816 while (fw_size >= sizeof(*cmd)) {
1817 cmd = (struct hci_command_hdr *)fw_ptr;
1818 fw_ptr += sizeof(*cmd);
1819 fw_size -= sizeof(*cmd);
1821 if (fw_size < cmd->plen) {
1822 BT_ERR("%s: BCM: patch %s is corrupted",
1823 hdev->name, fw_name);
1829 fw_ptr += cmd->plen;
1830 fw_size -= cmd->plen;
1832 opcode = le16_to_cpu(cmd->opcode);
1834 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1838 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
1839 hdev->name, opcode, ret);
1845 /* 250 msec delay after Launch Ram completes */
1850 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1853 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1858 /* Read Local Version Info */
1859 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1863 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1868 if (skb->len != sizeof(*ver)) {
1869 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1876 ver = (struct hci_rp_read_local_version *)skb->data;
1877 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1878 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1879 ver->lmp_ver, ver->lmp_subver);
1882 /* Read BD Address */
1883 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1887 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
1892 if (skb->len != sizeof(*bda)) {
1893 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
1900 bda = (struct hci_rp_read_bd_addr *)skb->data;
1902 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1903 hdev->name, bda->status);
1905 ret = -bt_to_errno(bda->status);
1909 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1910 * with no configured address.
1912 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
1913 BT_INFO("%s: BCM: using default device address (%pMR)",
1914 hdev->name, &bda->bdaddr);
1915 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1921 release_firmware(fw);
1926 static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1928 struct sk_buff *skb;
1931 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1934 BT_ERR("%s: BCM: Change address command failed (%ld)",
1943 static int btusb_probe(struct usb_interface *intf,
1944 const struct usb_device_id *id)
1946 struct usb_endpoint_descriptor *ep_desc;
1947 struct btusb_data *data;
1948 struct hci_dev *hdev;
1951 BT_DBG("intf %p id %p", intf, id);
1953 /* interface numbers are hardcoded in the spec */
1954 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1957 if (!id->driver_info) {
1958 const struct usb_device_id *match;
1960 match = usb_match_id(intf, blacklist_table);
1965 if (id->driver_info == BTUSB_IGNORE)
1968 if (id->driver_info & BTUSB_ATH3012) {
1969 struct usb_device *udev = interface_to_usbdev(intf);
1971 /* Old firmware would otherwise let ath3k driver load
1972 * patch and sysconfig files */
1973 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1977 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1981 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1982 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1984 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1985 data->intr_ep = ep_desc;
1989 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1990 data->bulk_tx_ep = ep_desc;
1994 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1995 data->bulk_rx_ep = ep_desc;
2000 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2003 data->cmdreq_type = USB_TYPE_CLASS;
2005 data->udev = interface_to_usbdev(intf);
2008 INIT_WORK(&data->work, btusb_work);
2009 INIT_WORK(&data->waker, btusb_waker);
2010 init_usb_anchor(&data->deferred);
2011 init_usb_anchor(&data->tx_anchor);
2012 spin_lock_init(&data->txlock);
2014 init_usb_anchor(&data->intr_anchor);
2015 init_usb_anchor(&data->bulk_anchor);
2016 init_usb_anchor(&data->isoc_anchor);
2017 spin_lock_init(&data->rxlock);
2019 data->recv_bulk = btusb_recv_bulk;
2021 hdev = hci_alloc_dev();
2025 hdev->bus = HCI_USB;
2026 hci_set_drvdata(hdev, data);
2030 SET_HCIDEV_DEV(hdev, &intf->dev);
2032 hdev->open = btusb_open;
2033 hdev->close = btusb_close;
2034 hdev->flush = btusb_flush;
2035 hdev->send = btusb_send_frame;
2036 hdev->notify = btusb_notify;
2038 if (id->driver_info & BTUSB_BCM92035)
2039 hdev->setup = btusb_setup_bcm92035;
2041 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2042 hdev->setup = btusb_setup_bcm_patchram;
2043 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
2044 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2047 if (id->driver_info & BTUSB_INTEL) {
2048 hdev->setup = btusb_setup_intel;
2049 hdev->set_bdaddr = btusb_set_bdaddr_intel;
2052 if (id->driver_info & BTUSB_MARVELL)
2053 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2055 if (id->driver_info & BTUSB_INTEL_BOOT)
2056 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2058 /* Interface numbers are hardcoded in the specification */
2059 data->isoc = usb_ifnum_to_if(data->udev, 1);
2062 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2064 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2065 if (!disable_scofix)
2066 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2069 if (id->driver_info & BTUSB_BROKEN_ISOC)
2072 if (id->driver_info & BTUSB_DIGIANSWER) {
2073 data->cmdreq_type = USB_TYPE_VENDOR;
2074 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2077 if (id->driver_info & BTUSB_CSR) {
2078 struct usb_device *udev = data->udev;
2079 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2081 /* Old firmware would otherwise execute USB reset */
2082 if (bcdDevice < 0x117)
2083 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2085 /* Fake CSR devices with broken commands */
2086 if (bcdDevice <= 0x100)
2087 hdev->setup = btusb_setup_csr;
2090 if (id->driver_info & BTUSB_SNIFFER) {
2091 struct usb_device *udev = data->udev;
2093 /* New sniffer firmware has crippled HCI interface */
2094 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2095 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2098 if (id->driver_info & BTUSB_INTEL_BOOT) {
2099 /* A bug in the bootloader causes that interrupt interface is
2100 * only enabled after receiving SetInterface(0, AltSetting=0).
2102 err = usb_set_interface(data->udev, 0, 0);
2104 BT_ERR("failed to set interface 0, alt 0 %d", err);
2111 err = usb_driver_claim_interface(&btusb_driver,
2119 err = hci_register_dev(hdev);
2125 usb_set_intfdata(intf, data);
2130 static void btusb_disconnect(struct usb_interface *intf)
2132 struct btusb_data *data = usb_get_intfdata(intf);
2133 struct hci_dev *hdev;
2135 BT_DBG("intf %p", intf);
2141 usb_set_intfdata(data->intf, NULL);
2144 usb_set_intfdata(data->isoc, NULL);
2146 hci_unregister_dev(hdev);
2148 if (intf == data->isoc)
2149 usb_driver_release_interface(&btusb_driver, data->intf);
2150 else if (data->isoc)
2151 usb_driver_release_interface(&btusb_driver, data->isoc);
2153 btusb_free_frags(data);
2158 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2160 struct btusb_data *data = usb_get_intfdata(intf);
2162 BT_DBG("intf %p", intf);
2164 if (data->suspend_count++)
2167 spin_lock_irq(&data->txlock);
2168 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
2169 set_bit(BTUSB_SUSPENDING, &data->flags);
2170 spin_unlock_irq(&data->txlock);
2172 spin_unlock_irq(&data->txlock);
2173 data->suspend_count--;
2177 cancel_work_sync(&data->work);
2179 btusb_stop_traffic(data);
2180 usb_kill_anchored_urbs(&data->tx_anchor);
2185 static void play_deferred(struct btusb_data *data)
2190 while ((urb = usb_get_from_anchor(&data->deferred))) {
2191 err = usb_submit_urb(urb, GFP_ATOMIC);
2195 data->tx_in_flight++;
2197 usb_scuttle_anchored_urbs(&data->deferred);
2200 static int btusb_resume(struct usb_interface *intf)
2202 struct btusb_data *data = usb_get_intfdata(intf);
2203 struct hci_dev *hdev = data->hdev;
2206 BT_DBG("intf %p", intf);
2208 if (--data->suspend_count)
2211 if (!test_bit(HCI_RUNNING, &hdev->flags))
2214 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2215 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2217 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2222 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
2223 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2225 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2229 btusb_submit_bulk_urb(hdev, GFP_NOIO);
2232 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2233 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2234 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2236 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2239 spin_lock_irq(&data->txlock);
2240 play_deferred(data);
2241 clear_bit(BTUSB_SUSPENDING, &data->flags);
2242 spin_unlock_irq(&data->txlock);
2243 schedule_work(&data->work);
2248 usb_scuttle_anchored_urbs(&data->deferred);
2250 spin_lock_irq(&data->txlock);
2251 clear_bit(BTUSB_SUSPENDING, &data->flags);
2252 spin_unlock_irq(&data->txlock);
2258 static struct usb_driver btusb_driver = {
2260 .probe = btusb_probe,
2261 .disconnect = btusb_disconnect,
2263 .suspend = btusb_suspend,
2264 .resume = btusb_resume,
2266 .id_table = btusb_table,
2267 .supports_autosuspend = 1,
2268 .disable_hub_initiated_lpm = 1,
2271 module_usb_driver(btusb_driver);
2273 module_param(disable_scofix, bool, 0644);
2274 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2276 module_param(force_scofix, bool, 0644);
2277 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2279 module_param(reset, bool, 0644);
2280 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2282 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2283 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2284 MODULE_VERSION(VERSION);
2285 MODULE_LICENSE("GPL");