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) },
110 /* Foxconn - Hon Hai */
111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
113 /* Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
115 .driver_info = BTUSB_BCM_PATCHRAM },
117 /* ASUSTek Computer - Broadcom based */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
120 /* Belkin F8065bf - Broadcom based */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
123 /* IMC Networks - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
126 /* Intel Bluetooth USB Bootloader (RAM module) */
127 { USB_DEVICE(0x8087, 0x0a5a),
128 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
130 { } /* Terminating entry */
133 MODULE_DEVICE_TABLE(usb, btusb_table);
135 static const struct usb_device_id blacklist_table[] = {
136 /* CSR BlueCore devices */
137 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
139 /* Broadcom BCM2033 without firmware */
140 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
142 /* Atheros 3011 with sflash firmware */
143 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
144 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
145 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
146 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
147 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
148 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
150 /* Atheros AR9285 Malbec with sflash firmware */
151 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
153 /* Atheros 3012 with sflash firmware */
154 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
187 /* Atheros AR5BBU12 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
190 /* Atheros AR5BBU12 with sflash firmware */
191 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
194 /* Broadcom BCM2035 */
195 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
196 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
199 /* Broadcom BCM2045 */
200 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
201 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
203 /* IBM/Lenovo ThinkPad with Broadcom chip */
204 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
205 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
207 /* HP laptop with Broadcom chip */
208 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
210 /* Dell laptop with Broadcom chip */
211 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
213 /* Dell Wireless 370 and 410 devices */
214 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
215 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
217 /* Belkin F8T012 and F8T013 devices */
218 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
219 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
221 /* Asus WL-BTD202 device */
222 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
224 /* Kensington Bluetooth USB adapter */
225 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
227 /* RTX Telecom based adapters with buggy SCO support */
228 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
229 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
231 /* CONWISE Technology based adapters with buggy SCO support */
232 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
234 /* Digianswer devices */
235 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
236 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
238 /* CSR BlueCore Bluetooth Sniffer */
239 { USB_DEVICE(0x0a12, 0x0002),
240 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
242 /* Frontline ComProbe Bluetooth Sniffer */
243 { USB_DEVICE(0x16d3, 0x0002),
244 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
246 /* Intel Bluetooth device */
247 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
248 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
251 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
252 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
254 { } /* Terminating entry */
257 #define BTUSB_MAX_ISOC_FRAMES 10
259 #define BTUSB_INTR_RUNNING 0
260 #define BTUSB_BULK_RUNNING 1
261 #define BTUSB_ISOC_RUNNING 2
262 #define BTUSB_SUSPENDING 3
263 #define BTUSB_DID_ISO_RESUME 4
266 struct hci_dev *hdev;
267 struct usb_device *udev;
268 struct usb_interface *intf;
269 struct usb_interface *isoc;
275 struct work_struct work;
276 struct work_struct waker;
278 struct usb_anchor deferred;
279 struct usb_anchor tx_anchor;
283 struct usb_anchor intr_anchor;
284 struct usb_anchor bulk_anchor;
285 struct usb_anchor isoc_anchor;
288 struct sk_buff *evt_skb;
289 struct sk_buff *acl_skb;
290 struct sk_buff *sco_skb;
292 struct usb_endpoint_descriptor *intr_ep;
293 struct usb_endpoint_descriptor *bulk_tx_ep;
294 struct usb_endpoint_descriptor *bulk_rx_ep;
295 struct usb_endpoint_descriptor *isoc_tx_ep;
296 struct usb_endpoint_descriptor *isoc_rx_ep;
300 unsigned int sco_num;
305 static inline void btusb_free_frags(struct btusb_data *data)
309 spin_lock_irqsave(&data->rxlock, flags);
311 kfree_skb(data->evt_skb);
312 data->evt_skb = NULL;
314 kfree_skb(data->acl_skb);
315 data->acl_skb = NULL;
317 kfree_skb(data->sco_skb);
318 data->sco_skb = NULL;
320 spin_unlock_irqrestore(&data->rxlock, flags);
323 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
328 spin_lock(&data->rxlock);
335 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
341 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
342 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
345 len = min_t(uint, bt_cb(skb)->expect, count);
346 memcpy(skb_put(skb, len), buffer, len);
350 bt_cb(skb)->expect -= len;
352 if (skb->len == HCI_EVENT_HDR_SIZE) {
353 /* Complete event header */
354 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
356 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
365 if (bt_cb(skb)->expect == 0) {
367 hci_recv_frame(data->hdev, skb);
373 spin_unlock(&data->rxlock);
378 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
383 spin_lock(&data->rxlock);
390 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
396 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
397 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
400 len = min_t(uint, bt_cb(skb)->expect, count);
401 memcpy(skb_put(skb, len), buffer, len);
405 bt_cb(skb)->expect -= len;
407 if (skb->len == HCI_ACL_HDR_SIZE) {
408 __le16 dlen = hci_acl_hdr(skb)->dlen;
410 /* Complete ACL header */
411 bt_cb(skb)->expect = __le16_to_cpu(dlen);
413 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
422 if (bt_cb(skb)->expect == 0) {
424 hci_recv_frame(data->hdev, skb);
430 spin_unlock(&data->rxlock);
435 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
440 spin_lock(&data->rxlock);
447 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
453 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
454 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
457 len = min_t(uint, bt_cb(skb)->expect, count);
458 memcpy(skb_put(skb, len), buffer, len);
462 bt_cb(skb)->expect -= len;
464 if (skb->len == HCI_SCO_HDR_SIZE) {
465 /* Complete SCO header */
466 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
468 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
477 if (bt_cb(skb)->expect == 0) {
479 hci_recv_frame(data->hdev, skb);
485 spin_unlock(&data->rxlock);
490 static void btusb_intr_complete(struct urb *urb)
492 struct hci_dev *hdev = urb->context;
493 struct btusb_data *data = hci_get_drvdata(hdev);
496 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
499 if (!test_bit(HCI_RUNNING, &hdev->flags))
502 if (urb->status == 0) {
503 hdev->stat.byte_rx += urb->actual_length;
505 if (btusb_recv_intr(data, urb->transfer_buffer,
506 urb->actual_length) < 0) {
507 BT_ERR("%s corrupted event packet", hdev->name);
510 } else if (urb->status == -ENOENT) {
511 /* Avoid suspend failed when usb_kill_urb */
515 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
518 usb_mark_last_busy(data->udev);
519 usb_anchor_urb(urb, &data->intr_anchor);
521 err = usb_submit_urb(urb, GFP_ATOMIC);
523 /* -EPERM: urb is being killed;
524 * -ENODEV: device got disconnected */
525 if (err != -EPERM && err != -ENODEV)
526 BT_ERR("%s urb %p failed to resubmit (%d)",
527 hdev->name, urb, -err);
528 usb_unanchor_urb(urb);
532 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
534 struct btusb_data *data = hci_get_drvdata(hdev);
540 BT_DBG("%s", hdev->name);
545 urb = usb_alloc_urb(0, mem_flags);
549 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
551 buf = kmalloc(size, mem_flags);
557 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
559 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
560 btusb_intr_complete, hdev, data->intr_ep->bInterval);
562 urb->transfer_flags |= URB_FREE_BUFFER;
564 usb_anchor_urb(urb, &data->intr_anchor);
566 err = usb_submit_urb(urb, mem_flags);
568 if (err != -EPERM && err != -ENODEV)
569 BT_ERR("%s urb %p submission failed (%d)",
570 hdev->name, urb, -err);
571 usb_unanchor_urb(urb);
579 static void btusb_bulk_complete(struct urb *urb)
581 struct hci_dev *hdev = urb->context;
582 struct btusb_data *data = hci_get_drvdata(hdev);
585 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
588 if (!test_bit(HCI_RUNNING, &hdev->flags))
591 if (urb->status == 0) {
592 hdev->stat.byte_rx += urb->actual_length;
594 if (btusb_recv_bulk(data, urb->transfer_buffer,
595 urb->actual_length) < 0) {
596 BT_ERR("%s corrupted ACL packet", hdev->name);
599 } else if (urb->status == -ENOENT) {
600 /* Avoid suspend failed when usb_kill_urb */
604 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
607 usb_anchor_urb(urb, &data->bulk_anchor);
608 usb_mark_last_busy(data->udev);
610 err = usb_submit_urb(urb, GFP_ATOMIC);
612 /* -EPERM: urb is being killed;
613 * -ENODEV: device got disconnected */
614 if (err != -EPERM && err != -ENODEV)
615 BT_ERR("%s urb %p failed to resubmit (%d)",
616 hdev->name, urb, -err);
617 usb_unanchor_urb(urb);
621 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
623 struct btusb_data *data = hci_get_drvdata(hdev);
627 int err, size = HCI_MAX_FRAME_SIZE;
629 BT_DBG("%s", hdev->name);
631 if (!data->bulk_rx_ep)
634 urb = usb_alloc_urb(0, mem_flags);
638 buf = kmalloc(size, mem_flags);
644 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
646 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
647 btusb_bulk_complete, hdev);
649 urb->transfer_flags |= URB_FREE_BUFFER;
651 usb_mark_last_busy(data->udev);
652 usb_anchor_urb(urb, &data->bulk_anchor);
654 err = usb_submit_urb(urb, mem_flags);
656 if (err != -EPERM && err != -ENODEV)
657 BT_ERR("%s urb %p submission failed (%d)",
658 hdev->name, urb, -err);
659 usb_unanchor_urb(urb);
667 static void btusb_isoc_complete(struct urb *urb)
669 struct hci_dev *hdev = urb->context;
670 struct btusb_data *data = hci_get_drvdata(hdev);
673 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
676 if (!test_bit(HCI_RUNNING, &hdev->flags))
679 if (urb->status == 0) {
680 for (i = 0; i < urb->number_of_packets; i++) {
681 unsigned int offset = urb->iso_frame_desc[i].offset;
682 unsigned int length = urb->iso_frame_desc[i].actual_length;
684 if (urb->iso_frame_desc[i].status)
687 hdev->stat.byte_rx += length;
689 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
691 BT_ERR("%s corrupted SCO packet", hdev->name);
695 } else if (urb->status == -ENOENT) {
696 /* Avoid suspend failed when usb_kill_urb */
700 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
703 usb_anchor_urb(urb, &data->isoc_anchor);
705 err = usb_submit_urb(urb, GFP_ATOMIC);
707 /* -EPERM: urb is being killed;
708 * -ENODEV: device got disconnected */
709 if (err != -EPERM && err != -ENODEV)
710 BT_ERR("%s urb %p failed to resubmit (%d)",
711 hdev->name, urb, -err);
712 usb_unanchor_urb(urb);
716 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
720 BT_DBG("len %d mtu %d", len, mtu);
722 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
723 i++, offset += mtu, len -= mtu) {
724 urb->iso_frame_desc[i].offset = offset;
725 urb->iso_frame_desc[i].length = mtu;
728 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
729 urb->iso_frame_desc[i].offset = offset;
730 urb->iso_frame_desc[i].length = len;
734 urb->number_of_packets = i;
737 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
739 struct btusb_data *data = hci_get_drvdata(hdev);
745 BT_DBG("%s", hdev->name);
747 if (!data->isoc_rx_ep)
750 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
754 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
755 BTUSB_MAX_ISOC_FRAMES;
757 buf = kmalloc(size, mem_flags);
763 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
765 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
766 hdev, data->isoc_rx_ep->bInterval);
768 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
770 __fill_isoc_descriptor(urb, size,
771 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
773 usb_anchor_urb(urb, &data->isoc_anchor);
775 err = usb_submit_urb(urb, mem_flags);
777 if (err != -EPERM && err != -ENODEV)
778 BT_ERR("%s urb %p submission failed (%d)",
779 hdev->name, urb, -err);
780 usb_unanchor_urb(urb);
788 static void btusb_tx_complete(struct urb *urb)
790 struct sk_buff *skb = urb->context;
791 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
792 struct btusb_data *data = hci_get_drvdata(hdev);
794 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
797 if (!test_bit(HCI_RUNNING, &hdev->flags))
801 hdev->stat.byte_tx += urb->transfer_buffer_length;
806 spin_lock(&data->txlock);
807 data->tx_in_flight--;
808 spin_unlock(&data->txlock);
810 kfree(urb->setup_packet);
815 static void btusb_isoc_tx_complete(struct urb *urb)
817 struct sk_buff *skb = urb->context;
818 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
820 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
823 if (!test_bit(HCI_RUNNING, &hdev->flags))
827 hdev->stat.byte_tx += urb->transfer_buffer_length;
832 kfree(urb->setup_packet);
837 static int btusb_open(struct hci_dev *hdev)
839 struct btusb_data *data = hci_get_drvdata(hdev);
842 BT_DBG("%s", hdev->name);
844 err = usb_autopm_get_interface(data->intf);
848 data->intf->needs_remote_wakeup = 1;
850 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
853 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
856 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
860 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
862 usb_kill_anchored_urbs(&data->intr_anchor);
866 set_bit(BTUSB_BULK_RUNNING, &data->flags);
867 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
870 usb_autopm_put_interface(data->intf);
874 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
875 clear_bit(HCI_RUNNING, &hdev->flags);
876 usb_autopm_put_interface(data->intf);
880 static void btusb_stop_traffic(struct btusb_data *data)
882 usb_kill_anchored_urbs(&data->intr_anchor);
883 usb_kill_anchored_urbs(&data->bulk_anchor);
884 usb_kill_anchored_urbs(&data->isoc_anchor);
887 static int btusb_close(struct hci_dev *hdev)
889 struct btusb_data *data = hci_get_drvdata(hdev);
892 BT_DBG("%s", hdev->name);
894 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
897 cancel_work_sync(&data->work);
898 cancel_work_sync(&data->waker);
900 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
901 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
902 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
904 btusb_stop_traffic(data);
905 btusb_free_frags(data);
907 err = usb_autopm_get_interface(data->intf);
911 data->intf->needs_remote_wakeup = 0;
912 usb_autopm_put_interface(data->intf);
915 usb_scuttle_anchored_urbs(&data->deferred);
919 static int btusb_flush(struct hci_dev *hdev)
921 struct btusb_data *data = hci_get_drvdata(hdev);
923 BT_DBG("%s", hdev->name);
925 usb_kill_anchored_urbs(&data->tx_anchor);
926 btusb_free_frags(data);
931 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
933 struct btusb_data *data = hci_get_drvdata(hdev);
934 struct usb_ctrlrequest *dr;
938 urb = usb_alloc_urb(0, GFP_KERNEL);
940 return ERR_PTR(-ENOMEM);
942 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
945 return ERR_PTR(-ENOMEM);
948 dr->bRequestType = data->cmdreq_type;
952 dr->wLength = __cpu_to_le16(skb->len);
954 pipe = usb_sndctrlpipe(data->udev, 0x00);
956 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
957 skb->data, skb->len, btusb_tx_complete, skb);
959 skb->dev = (void *)hdev;
964 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
966 struct btusb_data *data = hci_get_drvdata(hdev);
970 if (!data->bulk_tx_ep)
971 return ERR_PTR(-ENODEV);
973 urb = usb_alloc_urb(0, GFP_KERNEL);
975 return ERR_PTR(-ENOMEM);
977 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
979 usb_fill_bulk_urb(urb, data->udev, pipe,
980 skb->data, skb->len, btusb_tx_complete, skb);
982 skb->dev = (void *)hdev;
987 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
989 struct btusb_data *data = hci_get_drvdata(hdev);
993 if (!data->isoc_tx_ep)
994 return ERR_PTR(-ENODEV);
996 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
998 return ERR_PTR(-ENOMEM);
1000 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1002 usb_fill_int_urb(urb, data->udev, pipe,
1003 skb->data, skb->len, btusb_isoc_tx_complete,
1004 skb, data->isoc_tx_ep->bInterval);
1006 urb->transfer_flags = URB_ISO_ASAP;
1008 __fill_isoc_descriptor(urb, skb->len,
1009 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1011 skb->dev = (void *)hdev;
1016 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1018 struct btusb_data *data = hci_get_drvdata(hdev);
1021 usb_anchor_urb(urb, &data->tx_anchor);
1023 err = usb_submit_urb(urb, GFP_KERNEL);
1025 if (err != -EPERM && err != -ENODEV)
1026 BT_ERR("%s urb %p submission failed (%d)",
1027 hdev->name, urb, -err);
1028 kfree(urb->setup_packet);
1029 usb_unanchor_urb(urb);
1031 usb_mark_last_busy(data->udev);
1038 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1040 struct btusb_data *data = hci_get_drvdata(hdev);
1041 unsigned long flags;
1044 spin_lock_irqsave(&data->txlock, flags);
1045 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1047 data->tx_in_flight++;
1048 spin_unlock_irqrestore(&data->txlock, flags);
1051 return submit_tx_urb(hdev, urb);
1053 usb_anchor_urb(urb, &data->deferred);
1054 schedule_work(&data->waker);
1060 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1064 BT_DBG("%s", hdev->name);
1066 if (!test_bit(HCI_RUNNING, &hdev->flags))
1069 switch (bt_cb(skb)->pkt_type) {
1070 case HCI_COMMAND_PKT:
1071 urb = alloc_ctrl_urb(hdev, skb);
1073 return PTR_ERR(urb);
1075 hdev->stat.cmd_tx++;
1076 return submit_or_queue_tx_urb(hdev, urb);
1078 case HCI_ACLDATA_PKT:
1079 urb = alloc_bulk_urb(hdev, skb);
1081 return PTR_ERR(urb);
1083 hdev->stat.acl_tx++;
1084 return submit_or_queue_tx_urb(hdev, urb);
1086 case HCI_SCODATA_PKT:
1087 if (hci_conn_num(hdev, SCO_LINK) < 1)
1090 urb = alloc_isoc_urb(hdev, skb);
1092 return PTR_ERR(urb);
1094 hdev->stat.sco_tx++;
1095 return submit_tx_urb(hdev, urb);
1101 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1103 struct btusb_data *data = hci_get_drvdata(hdev);
1105 BT_DBG("%s evt %d", hdev->name, evt);
1107 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1108 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1109 schedule_work(&data->work);
1113 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1115 struct btusb_data *data = hci_get_drvdata(hdev);
1116 struct usb_interface *intf = data->isoc;
1117 struct usb_endpoint_descriptor *ep_desc;
1123 err = usb_set_interface(data->udev, 1, altsetting);
1125 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1129 data->isoc_altsetting = altsetting;
1131 data->isoc_tx_ep = NULL;
1132 data->isoc_rx_ep = NULL;
1134 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1135 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1137 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1138 data->isoc_tx_ep = ep_desc;
1142 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1143 data->isoc_rx_ep = ep_desc;
1148 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1149 BT_ERR("%s invalid SCO descriptors", hdev->name);
1156 static void btusb_work(struct work_struct *work)
1158 struct btusb_data *data = container_of(work, struct btusb_data, work);
1159 struct hci_dev *hdev = data->hdev;
1163 if (data->sco_num > 0) {
1164 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1165 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1167 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1168 usb_kill_anchored_urbs(&data->isoc_anchor);
1172 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1175 if (hdev->voice_setting & 0x0020) {
1176 static const int alts[3] = { 2, 4, 5 };
1178 new_alts = alts[data->sco_num - 1];
1180 new_alts = data->sco_num;
1183 if (data->isoc_altsetting != new_alts) {
1184 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1185 usb_kill_anchored_urbs(&data->isoc_anchor);
1187 if (__set_isoc_interface(hdev, new_alts) < 0)
1191 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1192 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1193 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1195 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1198 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1199 usb_kill_anchored_urbs(&data->isoc_anchor);
1201 __set_isoc_interface(hdev, 0);
1202 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1203 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1207 static void btusb_waker(struct work_struct *work)
1209 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1212 err = usb_autopm_get_interface(data->intf);
1216 usb_autopm_put_interface(data->intf);
1219 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1221 struct sk_buff *skb;
1224 BT_DBG("%s", hdev->name);
1226 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1228 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1235 static int btusb_setup_csr(struct hci_dev *hdev)
1237 struct hci_rp_read_local_version *rp;
1238 struct sk_buff *skb;
1241 BT_DBG("%s", hdev->name);
1243 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1246 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1247 return -PTR_ERR(skb);
1250 rp = (struct hci_rp_read_local_version *)skb->data;
1253 if (le16_to_cpu(rp->manufacturer) != 10) {
1254 /* Clear the reset quirk since this is not an actual
1255 * early Bluetooth 1.1 device from CSR.
1257 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1259 /* These fake CSR controllers have all a broken
1260 * stored link key handling and so just disable it.
1262 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1267 ret = -bt_to_errno(rp->status);
1274 struct intel_version {
1287 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1288 struct intel_version *ver)
1290 const struct firmware *fw;
1294 snprintf(fwname, sizeof(fwname),
1295 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1296 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1297 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1298 ver->fw_build_ww, ver->fw_build_yy);
1300 ret = request_firmware(&fw, fwname, &hdev->dev);
1302 if (ret == -EINVAL) {
1303 BT_ERR("%s Intel firmware file request failed (%d)",
1308 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1309 hdev->name, fwname, ret);
1311 /* If the correct firmware patch file is not found, use the
1312 * default firmware patch file instead
1314 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1315 ver->hw_platform, ver->hw_variant);
1316 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1317 BT_ERR("%s failed to open default Intel fw file: %s",
1318 hdev->name, fwname);
1323 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1328 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1329 const struct firmware *fw,
1330 const u8 **fw_ptr, int *disable_patch)
1332 struct sk_buff *skb;
1333 struct hci_command_hdr *cmd;
1334 const u8 *cmd_param;
1335 struct hci_event_hdr *evt = NULL;
1336 const u8 *evt_param = NULL;
1337 int remain = fw->size - (*fw_ptr - fw->data);
1339 /* The first byte indicates the types of the patch command or event.
1340 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1341 * in the current firmware buffer doesn't start with 0x01 or
1342 * the size of remain buffer is smaller than HCI command header,
1343 * the firmware file is corrupted and it should stop the patching
1346 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1347 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1353 cmd = (struct hci_command_hdr *)(*fw_ptr);
1354 *fw_ptr += sizeof(*cmd);
1355 remain -= sizeof(*cmd);
1357 /* Ensure that the remain firmware data is long enough than the length
1358 * of command parameter. If not, the firmware file is corrupted.
1360 if (remain < cmd->plen) {
1361 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1365 /* If there is a command that loads a patch in the firmware
1366 * file, then enable the patch upon success, otherwise just
1367 * disable the manufacturer mode, for example patch activation
1368 * is not required when the default firmware patch file is used
1369 * because there are no patch data to load.
1371 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1374 cmd_param = *fw_ptr;
1375 *fw_ptr += cmd->plen;
1376 remain -= cmd->plen;
1378 /* This reads the expected events when the above command is sent to the
1379 * device. Some vendor commands expects more than one events, for
1380 * example command status event followed by vendor specific event.
1381 * For this case, it only keeps the last expected event. so the command
1382 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1383 * last expected event.
1385 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1389 evt = (struct hci_event_hdr *)(*fw_ptr);
1390 *fw_ptr += sizeof(*evt);
1391 remain -= sizeof(*evt);
1393 if (remain < evt->plen) {
1394 BT_ERR("%s Intel fw corrupted: invalid evt len",
1399 evt_param = *fw_ptr;
1400 *fw_ptr += evt->plen;
1401 remain -= evt->plen;
1404 /* Every HCI commands in the firmware file has its correspond event.
1405 * If event is not found or remain is smaller than zero, the firmware
1406 * file is corrupted.
1408 if (!evt || !evt_param || remain < 0) {
1409 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1413 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1414 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1416 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1417 hdev->name, cmd->opcode, PTR_ERR(skb));
1418 return PTR_ERR(skb);
1421 /* It ensures that the returned event matches the event data read from
1422 * the firmware file. At fist, it checks the length and then
1423 * the contents of the event.
1425 if (skb->len != evt->plen) {
1426 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1427 le16_to_cpu(cmd->opcode));
1432 if (memcmp(skb->data, evt_param, evt->plen)) {
1433 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1434 hdev->name, le16_to_cpu(cmd->opcode));
1443 #define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1445 static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1447 struct sk_buff *skb;
1448 struct hci_rp_read_bd_addr *rp;
1450 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1453 BT_ERR("%s reading Intel device address failed (%ld)",
1454 hdev->name, PTR_ERR(skb));
1455 return PTR_ERR(skb);
1458 if (skb->len != sizeof(*rp)) {
1459 BT_ERR("%s Intel device address length mismatch", hdev->name);
1464 rp = (struct hci_rp_read_bd_addr *)skb->data;
1466 BT_ERR("%s Intel device address result failed (%02x)",
1467 hdev->name, rp->status);
1469 return -bt_to_errno(rp->status);
1472 /* For some Intel based controllers, the default Bluetooth device
1473 * address 00:03:19:9E:8B:00 can be found. These controllers are
1474 * fully operational, but have the danger of duplicate addresses
1475 * and that in turn can cause problems with Bluetooth operation.
1477 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
1478 BT_ERR("%s found Intel default device address (%pMR)",
1479 hdev->name, &rp->bdaddr);
1480 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1488 static int btusb_setup_intel(struct hci_dev *hdev)
1490 struct sk_buff *skb;
1491 const struct firmware *fw;
1494 struct intel_version *ver;
1496 const u8 mfg_enable[] = { 0x01, 0x00 };
1497 const u8 mfg_disable[] = { 0x00, 0x00 };
1498 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1499 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1501 BT_DBG("%s", hdev->name);
1503 /* The controller has a bug with the first HCI command sent to it
1504 * returning number of completed commands as zero. This would stall the
1505 * command processing in the Bluetooth core.
1507 * As a workaround, send HCI Reset command first which will reset the
1508 * number of completed commands and allow normal command processing
1511 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1513 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1514 hdev->name, PTR_ERR(skb));
1515 return PTR_ERR(skb);
1519 /* Read Intel specific controller version first to allow selection of
1520 * which firmware file to load.
1522 * The returned information are hardware variant and revision plus
1523 * firmware variant, revision and build number.
1525 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1527 BT_ERR("%s reading Intel fw version command failed (%ld)",
1528 hdev->name, PTR_ERR(skb));
1529 return PTR_ERR(skb);
1532 if (skb->len != sizeof(*ver)) {
1533 BT_ERR("%s Intel version event length mismatch", hdev->name);
1538 ver = (struct intel_version *)skb->data;
1540 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1543 return -bt_to_errno(ver->status);
1546 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1547 hdev->name, ver->hw_platform, ver->hw_variant,
1548 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1549 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1552 /* fw_patch_num indicates the version of patch the device currently
1553 * have. If there is no patch data in the device, it is always 0x00.
1554 * So, if it is other than 0x00, no need to patch the deivce again.
1556 if (ver->fw_patch_num) {
1557 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1558 hdev->name, ver->fw_patch_num);
1560 btusb_check_bdaddr_intel(hdev);
1564 /* Opens the firmware patch file based on the firmware version read
1565 * from the controller. If it fails to open the matching firmware
1566 * patch file, it tries to open the default firmware patch file.
1567 * If no patch file is found, allow the device to operate without
1570 fw = btusb_setup_intel_get_fw(hdev, ver);
1573 btusb_check_bdaddr_intel(hdev);
1578 /* This Intel specific command enables the manufacturer mode of the
1581 * Only while this mode is enabled, the driver can download the
1582 * firmware patch data and configuration parameters.
1584 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1586 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1587 hdev->name, PTR_ERR(skb));
1588 release_firmware(fw);
1589 return PTR_ERR(skb);
1593 u8 evt_status = skb->data[0];
1595 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1596 hdev->name, evt_status);
1598 release_firmware(fw);
1599 return -bt_to_errno(evt_status);
1605 /* The firmware data file consists of list of Intel specific HCI
1606 * commands and its expected events. The first byte indicates the
1607 * type of the message, either HCI command or HCI event.
1609 * It reads the command and its expected event from the firmware file,
1610 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1611 * the returned event is compared with the event read from the firmware
1612 * file and it will continue until all the messages are downloaded to
1615 * Once the firmware patching is completed successfully,
1616 * the manufacturer mode is disabled with reset and activating the
1619 * If the firmware patching fails, the manufacturer mode is
1620 * disabled with reset and deactivating the patch.
1622 * If the default patch file is used, no reset is done when disabling
1625 while (fw->size > fw_ptr - fw->data) {
1628 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1631 goto exit_mfg_deactivate;
1634 release_firmware(fw);
1637 goto exit_mfg_disable;
1639 /* Patching completed successfully and disable the manufacturer mode
1640 * with reset and activate the downloaded firmware patches.
1642 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1643 mfg_reset_activate, HCI_INIT_TIMEOUT);
1645 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1646 hdev->name, PTR_ERR(skb));
1647 return PTR_ERR(skb);
1651 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1654 btusb_check_bdaddr_intel(hdev);
1658 /* Disable the manufacturer mode without reset */
1659 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1662 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1663 hdev->name, PTR_ERR(skb));
1664 return PTR_ERR(skb);
1668 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1670 btusb_check_bdaddr_intel(hdev);
1673 exit_mfg_deactivate:
1674 release_firmware(fw);
1676 /* Patching failed. Disable the manufacturer mode with reset and
1677 * deactivate the downloaded firmware patches.
1679 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1680 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1682 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1683 hdev->name, PTR_ERR(skb));
1684 return PTR_ERR(skb);
1688 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1691 btusb_check_bdaddr_intel(hdev);
1695 static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1697 struct sk_buff *skb;
1700 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1703 BT_ERR("%s: changing Intel device address failed (%ld)",
1712 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1713 const bdaddr_t *bdaddr)
1715 struct sk_buff *skb;
1720 buf[1] = sizeof(bdaddr_t);
1721 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1723 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1726 BT_ERR("%s: changing Marvell device address failed (%ld)",
1735 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1737 static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1739 struct btusb_data *data = hci_get_drvdata(hdev);
1740 struct usb_device *udev = data->udev;
1742 const struct firmware *fw;
1745 const struct hci_command_hdr *cmd;
1746 const u8 *cmd_param;
1748 struct sk_buff *skb;
1749 struct hci_rp_read_local_version *ver;
1750 struct hci_rp_read_bd_addr *bda;
1753 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1754 udev->product ? udev->product : "BCM",
1755 le16_to_cpu(udev->descriptor.idVendor),
1756 le16_to_cpu(udev->descriptor.idProduct));
1758 ret = request_firmware(&fw, fw_name, &hdev->dev);
1760 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
1765 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1768 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1773 /* Read Local Version Info */
1774 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1778 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1783 if (skb->len != sizeof(*ver)) {
1784 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1791 ver = (struct hci_rp_read_local_version *)skb->data;
1792 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1793 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1794 ver->lmp_ver, ver->lmp_subver);
1797 /* Start Download */
1798 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1801 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
1807 /* 50 msec delay after Download Minidrv completes */
1813 while (fw_size >= sizeof(*cmd)) {
1814 cmd = (struct hci_command_hdr *)fw_ptr;
1815 fw_ptr += sizeof(*cmd);
1816 fw_size -= sizeof(*cmd);
1818 if (fw_size < cmd->plen) {
1819 BT_ERR("%s: BCM: patch %s is corrupted",
1820 hdev->name, fw_name);
1826 fw_ptr += cmd->plen;
1827 fw_size -= cmd->plen;
1829 opcode = le16_to_cpu(cmd->opcode);
1831 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1835 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
1836 hdev->name, opcode, ret);
1842 /* 250 msec delay after Launch Ram completes */
1847 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1850 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1855 /* Read Local Version Info */
1856 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1860 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1865 if (skb->len != sizeof(*ver)) {
1866 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1873 ver = (struct hci_rp_read_local_version *)skb->data;
1874 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1875 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1876 ver->lmp_ver, ver->lmp_subver);
1879 /* Read BD Address */
1880 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1884 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
1889 if (skb->len != sizeof(*bda)) {
1890 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
1897 bda = (struct hci_rp_read_bd_addr *)skb->data;
1899 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1900 hdev->name, bda->status);
1902 ret = -bt_to_errno(bda->status);
1906 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1907 * with no configured address.
1909 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
1910 BT_INFO("%s: BCM: using default device address (%pMR)",
1911 hdev->name, &bda->bdaddr);
1912 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1918 release_firmware(fw);
1923 static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1925 struct sk_buff *skb;
1928 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1931 BT_ERR("%s: BCM: Change address command failed (%ld)",
1940 static int btusb_probe(struct usb_interface *intf,
1941 const struct usb_device_id *id)
1943 struct usb_endpoint_descriptor *ep_desc;
1944 struct btusb_data *data;
1945 struct hci_dev *hdev;
1948 BT_DBG("intf %p id %p", intf, id);
1950 /* interface numbers are hardcoded in the spec */
1951 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1954 if (!id->driver_info) {
1955 const struct usb_device_id *match;
1957 match = usb_match_id(intf, blacklist_table);
1962 if (id->driver_info == BTUSB_IGNORE)
1965 if (id->driver_info & BTUSB_ATH3012) {
1966 struct usb_device *udev = interface_to_usbdev(intf);
1968 /* Old firmware would otherwise let ath3k driver load
1969 * patch and sysconfig files */
1970 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1974 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
1978 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1979 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1981 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1982 data->intr_ep = ep_desc;
1986 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1987 data->bulk_tx_ep = ep_desc;
1991 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1992 data->bulk_rx_ep = ep_desc;
1997 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2000 data->cmdreq_type = USB_TYPE_CLASS;
2002 data->udev = interface_to_usbdev(intf);
2005 spin_lock_init(&data->lock);
2007 INIT_WORK(&data->work, btusb_work);
2008 INIT_WORK(&data->waker, btusb_waker);
2009 init_usb_anchor(&data->deferred);
2010 init_usb_anchor(&data->tx_anchor);
2011 spin_lock_init(&data->txlock);
2013 init_usb_anchor(&data->intr_anchor);
2014 init_usb_anchor(&data->bulk_anchor);
2015 init_usb_anchor(&data->isoc_anchor);
2016 spin_lock_init(&data->rxlock);
2018 hdev = hci_alloc_dev();
2022 hdev->bus = HCI_USB;
2023 hci_set_drvdata(hdev, data);
2027 SET_HCIDEV_DEV(hdev, &intf->dev);
2029 hdev->open = btusb_open;
2030 hdev->close = btusb_close;
2031 hdev->flush = btusb_flush;
2032 hdev->send = btusb_send_frame;
2033 hdev->notify = btusb_notify;
2035 if (id->driver_info & BTUSB_BCM92035)
2036 hdev->setup = btusb_setup_bcm92035;
2038 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2039 hdev->setup = btusb_setup_bcm_patchram;
2040 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
2043 if (id->driver_info & BTUSB_INTEL) {
2044 hdev->setup = btusb_setup_intel;
2045 hdev->set_bdaddr = btusb_set_bdaddr_intel;
2048 if (id->driver_info & BTUSB_MARVELL)
2049 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2051 if (id->driver_info & BTUSB_INTEL_BOOT)
2052 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2054 /* Interface numbers are hardcoded in the specification */
2055 data->isoc = usb_ifnum_to_if(data->udev, 1);
2058 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2060 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2061 if (!disable_scofix)
2062 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2065 if (id->driver_info & BTUSB_BROKEN_ISOC)
2068 if (id->driver_info & BTUSB_DIGIANSWER) {
2069 data->cmdreq_type = USB_TYPE_VENDOR;
2070 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2073 if (id->driver_info & BTUSB_CSR) {
2074 struct usb_device *udev = data->udev;
2075 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2077 /* Old firmware would otherwise execute USB reset */
2078 if (bcdDevice < 0x117)
2079 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2081 /* Fake CSR devices with broken commands */
2082 if (bcdDevice <= 0x100)
2083 hdev->setup = btusb_setup_csr;
2086 if (id->driver_info & BTUSB_SNIFFER) {
2087 struct usb_device *udev = data->udev;
2089 /* New sniffer firmware has crippled HCI interface */
2090 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2091 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2094 if (id->driver_info & BTUSB_INTEL_BOOT) {
2095 /* A bug in the bootloader causes that interrupt interface is
2096 * only enabled after receiving SetInterface(0, AltSetting=0).
2098 err = usb_set_interface(data->udev, 0, 0);
2100 BT_ERR("failed to set interface 0, alt 0 %d", err);
2107 err = usb_driver_claim_interface(&btusb_driver,
2115 err = hci_register_dev(hdev);
2121 usb_set_intfdata(intf, data);
2126 static void btusb_disconnect(struct usb_interface *intf)
2128 struct btusb_data *data = usb_get_intfdata(intf);
2129 struct hci_dev *hdev;
2131 BT_DBG("intf %p", intf);
2137 usb_set_intfdata(data->intf, NULL);
2140 usb_set_intfdata(data->isoc, NULL);
2142 hci_unregister_dev(hdev);
2144 if (intf == data->isoc)
2145 usb_driver_release_interface(&btusb_driver, data->intf);
2146 else if (data->isoc)
2147 usb_driver_release_interface(&btusb_driver, data->isoc);
2149 btusb_free_frags(data);
2154 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2156 struct btusb_data *data = usb_get_intfdata(intf);
2158 BT_DBG("intf %p", intf);
2160 if (data->suspend_count++)
2163 spin_lock_irq(&data->txlock);
2164 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
2165 set_bit(BTUSB_SUSPENDING, &data->flags);
2166 spin_unlock_irq(&data->txlock);
2168 spin_unlock_irq(&data->txlock);
2169 data->suspend_count--;
2173 cancel_work_sync(&data->work);
2175 btusb_stop_traffic(data);
2176 usb_kill_anchored_urbs(&data->tx_anchor);
2181 static void play_deferred(struct btusb_data *data)
2186 while ((urb = usb_get_from_anchor(&data->deferred))) {
2187 err = usb_submit_urb(urb, GFP_ATOMIC);
2191 data->tx_in_flight++;
2193 usb_scuttle_anchored_urbs(&data->deferred);
2196 static int btusb_resume(struct usb_interface *intf)
2198 struct btusb_data *data = usb_get_intfdata(intf);
2199 struct hci_dev *hdev = data->hdev;
2202 BT_DBG("intf %p", intf);
2204 if (--data->suspend_count)
2207 if (!test_bit(HCI_RUNNING, &hdev->flags))
2210 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2211 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2213 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2218 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
2219 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2221 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2225 btusb_submit_bulk_urb(hdev, GFP_NOIO);
2228 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2229 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2230 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2232 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2235 spin_lock_irq(&data->txlock);
2236 play_deferred(data);
2237 clear_bit(BTUSB_SUSPENDING, &data->flags);
2238 spin_unlock_irq(&data->txlock);
2239 schedule_work(&data->work);
2244 usb_scuttle_anchored_urbs(&data->deferred);
2246 spin_lock_irq(&data->txlock);
2247 clear_bit(BTUSB_SUSPENDING, &data->flags);
2248 spin_unlock_irq(&data->txlock);
2254 static struct usb_driver btusb_driver = {
2256 .probe = btusb_probe,
2257 .disconnect = btusb_disconnect,
2259 .suspend = btusb_suspend,
2260 .resume = btusb_resume,
2262 .id_table = btusb_table,
2263 .supports_autosuspend = 1,
2264 .disable_hub_initiated_lpm = 1,
2267 module_usb_driver(btusb_driver);
2269 module_param(disable_scofix, bool, 0644);
2270 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2272 module_param(force_scofix, bool, 0644);
2273 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2275 module_param(reset, bool, 0644);
2276 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2278 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2279 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2280 MODULE_VERSION(VERSION);
2281 MODULE_LICENSE("GPL");