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>
27 #include <asm/unaligned.h>
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
38 static bool disable_scofix;
39 static bool force_scofix;
41 static bool reset = true;
43 static struct usb_driver btusb_driver;
45 #define BTUSB_IGNORE 0x01
46 #define BTUSB_DIGIANSWER 0x02
47 #define BTUSB_CSR 0x04
48 #define BTUSB_SNIFFER 0x08
49 #define BTUSB_BCM92035 0x10
50 #define BTUSB_BROKEN_ISOC 0x20
51 #define BTUSB_WRONG_SCO_MTU 0x40
52 #define BTUSB_ATH3012 0x80
53 #define BTUSB_INTEL 0x100
54 #define BTUSB_INTEL_BOOT 0x200
55 #define BTUSB_BCM_PATCHRAM 0x400
56 #define BTUSB_MARVELL 0x800
57 #define BTUSB_SWAVE 0x1000
58 #define BTUSB_INTEL_NEW 0x2000
59 #define BTUSB_AMP 0x4000
60 #define BTUSB_QCA_ROME 0x8000
61 #define BTUSB_BCM_APPLE 0x10000
62 #define BTUSB_REALTEK 0x20000
64 static const struct usb_device_id btusb_table[] = {
65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
68 /* Generic Bluetooth AMP device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
71 /* Generic Bluetooth USB interface */
72 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
74 /* Apple-specific (Broadcom) devices */
75 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
76 .driver_info = BTUSB_BCM_APPLE },
78 /* MediaTek MT76x0E */
79 { USB_DEVICE(0x0e8d, 0x763f) },
81 /* Broadcom SoftSailing reporting vendor specific */
82 { USB_DEVICE(0x0a5c, 0x21e1) },
84 /* Apple MacBookPro 7,1 */
85 { USB_DEVICE(0x05ac, 0x8213) },
88 { USB_DEVICE(0x05ac, 0x8215) },
90 /* Apple MacBookPro6,2 */
91 { USB_DEVICE(0x05ac, 0x8218) },
93 /* Apple MacBookAir3,1, MacBookAir3,2 */
94 { USB_DEVICE(0x05ac, 0x821b) },
96 /* Apple MacBookAir4,1 */
97 { USB_DEVICE(0x05ac, 0x821f) },
99 /* Apple MacBookPro8,2 */
100 { USB_DEVICE(0x05ac, 0x821a) },
102 /* Apple MacMini5,1 */
103 { USB_DEVICE(0x05ac, 0x8281) },
105 /* AVM BlueFRITZ! USB v2.0 */
106 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
108 /* Bluetooth Ultraport Module from IBM */
109 { USB_DEVICE(0x04bf, 0x030a) },
111 /* ALPS Modules with non-standard id */
112 { USB_DEVICE(0x044e, 0x3001) },
113 { USB_DEVICE(0x044e, 0x3002) },
115 /* Ericsson with non-standard id */
116 { USB_DEVICE(0x0bdb, 0x1002) },
118 /* Canyon CN-BTU1 with HID interfaces */
119 { USB_DEVICE(0x0c10, 0x0000) },
121 /* Broadcom BCM20702A0 */
122 { USB_DEVICE(0x413c, 0x8197) },
124 /* Broadcom BCM20702B0 (Dynex/Insignia) */
125 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
127 /* Foxconn - Hon Hai */
128 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
129 .driver_info = BTUSB_BCM_PATCHRAM },
131 /* Lite-On Technology - Broadcom based */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
135 /* Broadcom devices with vendor specific id */
136 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
139 /* ASUSTek Computer - Broadcom based */
140 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
143 /* Belkin F8065bf - Broadcom based */
144 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
147 /* IMC Networks - Broadcom based */
148 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
151 /* Intel Bluetooth USB Bootloader (RAM module) */
152 { USB_DEVICE(0x8087, 0x0a5a),
153 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
155 { } /* Terminating entry */
158 MODULE_DEVICE_TABLE(usb, btusb_table);
160 static const struct usb_device_id blacklist_table[] = {
161 /* CSR BlueCore devices */
162 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
164 /* Broadcom BCM2033 without firmware */
165 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
167 /* Atheros 3011 with sflash firmware */
168 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
169 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
170 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
171 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
172 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
173 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
174 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
176 /* Atheros AR9285 Malbec with sflash firmware */
177 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
179 /* Atheros 3012 with sflash firmware */
180 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
222 /* Atheros AR5BBU12 with sflash firmware */
223 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
225 /* Atheros AR5BBU12 with sflash firmware */
226 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
229 /* QCA ROME chipset */
230 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
231 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
232 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
234 /* Broadcom BCM2035 */
235 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
236 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
237 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
239 /* Broadcom BCM2045 */
240 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
241 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* IBM/Lenovo ThinkPad with Broadcom chip */
244 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
245 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
247 /* HP laptop with Broadcom chip */
248 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
250 /* Dell laptop with Broadcom chip */
251 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
253 /* Dell Wireless 370 and 410 devices */
254 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* Belkin F8T012 and F8T013 devices */
258 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
261 /* Asus WL-BTD202 device */
262 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
264 /* Kensington Bluetooth USB adapter */
265 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
267 /* RTX Telecom based adapters with buggy SCO support */
268 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
269 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
271 /* CONWISE Technology based adapters with buggy SCO support */
272 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
274 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
275 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
277 /* Digianswer devices */
278 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
279 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
281 /* CSR BlueCore Bluetooth Sniffer */
282 { USB_DEVICE(0x0a12, 0x0002),
283 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
285 /* Frontline ComProbe Bluetooth Sniffer */
286 { USB_DEVICE(0x16d3, 0x0002),
287 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
289 /* Marvell Bluetooth devices */
290 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
291 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
293 /* Intel Bluetooth devices */
294 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
295 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
296 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
297 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
299 /* Other Intel Bluetooth devices */
300 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
301 .driver_info = BTUSB_IGNORE },
303 /* Realtek Bluetooth devices */
304 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
305 .driver_info = BTUSB_REALTEK },
307 /* Additional Realtek 8723AE Bluetooth devices */
308 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
309 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
311 /* Additional Realtek 8723BE Bluetooth devices */
312 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
314 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
315 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
316 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
318 /* Additional Realtek 8821AE Bluetooth devices */
319 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
320 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
321 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
322 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
325 /* Silicon Wave based devices */
326 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
328 { } /* Terminating entry */
331 #define BTUSB_MAX_ISOC_FRAMES 10
333 #define BTUSB_INTR_RUNNING 0
334 #define BTUSB_BULK_RUNNING 1
335 #define BTUSB_ISOC_RUNNING 2
336 #define BTUSB_SUSPENDING 3
337 #define BTUSB_DID_ISO_RESUME 4
338 #define BTUSB_BOOTLOADER 5
339 #define BTUSB_DOWNLOADING 6
340 #define BTUSB_FIRMWARE_LOADED 7
341 #define BTUSB_FIRMWARE_FAILED 8
342 #define BTUSB_BOOTING 9
343 #define BTUSB_RESET_RESUME 10
344 #define BTUSB_DIAG_RUNNING 11
347 struct hci_dev *hdev;
348 struct usb_device *udev;
349 struct usb_interface *intf;
350 struct usb_interface *isoc;
351 struct usb_interface *diag;
355 struct work_struct work;
356 struct work_struct waker;
358 struct usb_anchor deferred;
359 struct usb_anchor tx_anchor;
363 struct usb_anchor intr_anchor;
364 struct usb_anchor bulk_anchor;
365 struct usb_anchor isoc_anchor;
366 struct usb_anchor diag_anchor;
369 struct sk_buff *evt_skb;
370 struct sk_buff *acl_skb;
371 struct sk_buff *sco_skb;
373 struct usb_endpoint_descriptor *intr_ep;
374 struct usb_endpoint_descriptor *bulk_tx_ep;
375 struct usb_endpoint_descriptor *bulk_rx_ep;
376 struct usb_endpoint_descriptor *isoc_tx_ep;
377 struct usb_endpoint_descriptor *isoc_rx_ep;
378 struct usb_endpoint_descriptor *diag_tx_ep;
379 struct usb_endpoint_descriptor *diag_rx_ep;
384 unsigned int sco_num;
388 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
389 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
391 int (*setup_on_usb)(struct hci_dev *hdev);
394 static inline void btusb_free_frags(struct btusb_data *data)
398 spin_lock_irqsave(&data->rxlock, flags);
400 kfree_skb(data->evt_skb);
401 data->evt_skb = NULL;
403 kfree_skb(data->acl_skb);
404 data->acl_skb = NULL;
406 kfree_skb(data->sco_skb);
407 data->sco_skb = NULL;
409 spin_unlock_irqrestore(&data->rxlock, flags);
412 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
417 spin_lock(&data->rxlock);
424 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
430 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
431 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
434 len = min_t(uint, bt_cb(skb)->expect, count);
435 memcpy(skb_put(skb, len), buffer, len);
439 bt_cb(skb)->expect -= len;
441 if (skb->len == HCI_EVENT_HDR_SIZE) {
442 /* Complete event header */
443 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
445 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
454 if (bt_cb(skb)->expect == 0) {
456 data->recv_event(data->hdev, skb);
462 spin_unlock(&data->rxlock);
467 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
472 spin_lock(&data->rxlock);
479 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
485 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
486 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
489 len = min_t(uint, bt_cb(skb)->expect, count);
490 memcpy(skb_put(skb, len), buffer, len);
494 bt_cb(skb)->expect -= len;
496 if (skb->len == HCI_ACL_HDR_SIZE) {
497 __le16 dlen = hci_acl_hdr(skb)->dlen;
499 /* Complete ACL header */
500 bt_cb(skb)->expect = __le16_to_cpu(dlen);
502 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
511 if (bt_cb(skb)->expect == 0) {
513 hci_recv_frame(data->hdev, skb);
519 spin_unlock(&data->rxlock);
524 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
529 spin_lock(&data->rxlock);
536 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
542 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
543 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
546 len = min_t(uint, bt_cb(skb)->expect, count);
547 memcpy(skb_put(skb, len), buffer, len);
551 bt_cb(skb)->expect -= len;
553 if (skb->len == HCI_SCO_HDR_SIZE) {
554 /* Complete SCO header */
555 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
557 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
566 if (bt_cb(skb)->expect == 0) {
568 hci_recv_frame(data->hdev, skb);
574 spin_unlock(&data->rxlock);
579 static void btusb_intr_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_intr(data, urb->transfer_buffer,
595 urb->actual_length) < 0) {
596 BT_ERR("%s corrupted event packet", hdev->name);
599 } else if (urb->status == -ENOENT) {
600 /* Avoid suspend failed when usb_kill_urb */
604 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
607 usb_mark_last_busy(data->udev);
608 usb_anchor_urb(urb, &data->intr_anchor);
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_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
623 struct btusb_data *data = hci_get_drvdata(hdev);
629 BT_DBG("%s", hdev->name);
634 urb = usb_alloc_urb(0, mem_flags);
638 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
640 buf = kmalloc(size, mem_flags);
646 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
648 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
649 btusb_intr_complete, hdev, data->intr_ep->bInterval);
651 urb->transfer_flags |= URB_FREE_BUFFER;
653 usb_anchor_urb(urb, &data->intr_anchor);
655 err = usb_submit_urb(urb, mem_flags);
657 if (err != -EPERM && err != -ENODEV)
658 BT_ERR("%s urb %p submission failed (%d)",
659 hdev->name, urb, -err);
660 usb_unanchor_urb(urb);
668 static void btusb_bulk_complete(struct urb *urb)
670 struct hci_dev *hdev = urb->context;
671 struct btusb_data *data = hci_get_drvdata(hdev);
674 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
677 if (!test_bit(HCI_RUNNING, &hdev->flags))
680 if (urb->status == 0) {
681 hdev->stat.byte_rx += urb->actual_length;
683 if (data->recv_bulk(data, urb->transfer_buffer,
684 urb->actual_length) < 0) {
685 BT_ERR("%s corrupted ACL packet", hdev->name);
688 } else if (urb->status == -ENOENT) {
689 /* Avoid suspend failed when usb_kill_urb */
693 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
696 usb_anchor_urb(urb, &data->bulk_anchor);
697 usb_mark_last_busy(data->udev);
699 err = usb_submit_urb(urb, GFP_ATOMIC);
701 /* -EPERM: urb is being killed;
702 * -ENODEV: device got disconnected */
703 if (err != -EPERM && err != -ENODEV)
704 BT_ERR("%s urb %p failed to resubmit (%d)",
705 hdev->name, urb, -err);
706 usb_unanchor_urb(urb);
710 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
712 struct btusb_data *data = hci_get_drvdata(hdev);
716 int err, size = HCI_MAX_FRAME_SIZE;
718 BT_DBG("%s", hdev->name);
720 if (!data->bulk_rx_ep)
723 urb = usb_alloc_urb(0, mem_flags);
727 buf = kmalloc(size, mem_flags);
733 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
735 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
736 btusb_bulk_complete, hdev);
738 urb->transfer_flags |= URB_FREE_BUFFER;
740 usb_mark_last_busy(data->udev);
741 usb_anchor_urb(urb, &data->bulk_anchor);
743 err = usb_submit_urb(urb, mem_flags);
745 if (err != -EPERM && err != -ENODEV)
746 BT_ERR("%s urb %p submission failed (%d)",
747 hdev->name, urb, -err);
748 usb_unanchor_urb(urb);
756 static void btusb_isoc_complete(struct urb *urb)
758 struct hci_dev *hdev = urb->context;
759 struct btusb_data *data = hci_get_drvdata(hdev);
762 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
765 if (!test_bit(HCI_RUNNING, &hdev->flags))
768 if (urb->status == 0) {
769 for (i = 0; i < urb->number_of_packets; i++) {
770 unsigned int offset = urb->iso_frame_desc[i].offset;
771 unsigned int length = urb->iso_frame_desc[i].actual_length;
773 if (urb->iso_frame_desc[i].status)
776 hdev->stat.byte_rx += length;
778 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
780 BT_ERR("%s corrupted SCO packet", hdev->name);
784 } else if (urb->status == -ENOENT) {
785 /* Avoid suspend failed when usb_kill_urb */
789 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
792 usb_anchor_urb(urb, &data->isoc_anchor);
794 err = usb_submit_urb(urb, GFP_ATOMIC);
796 /* -EPERM: urb is being killed;
797 * -ENODEV: device got disconnected */
798 if (err != -EPERM && err != -ENODEV)
799 BT_ERR("%s urb %p failed to resubmit (%d)",
800 hdev->name, urb, -err);
801 usb_unanchor_urb(urb);
805 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
809 BT_DBG("len %d mtu %d", len, mtu);
811 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
812 i++, offset += mtu, len -= mtu) {
813 urb->iso_frame_desc[i].offset = offset;
814 urb->iso_frame_desc[i].length = mtu;
817 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
818 urb->iso_frame_desc[i].offset = offset;
819 urb->iso_frame_desc[i].length = len;
823 urb->number_of_packets = i;
826 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
828 struct btusb_data *data = hci_get_drvdata(hdev);
834 BT_DBG("%s", hdev->name);
836 if (!data->isoc_rx_ep)
839 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
843 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
844 BTUSB_MAX_ISOC_FRAMES;
846 buf = kmalloc(size, mem_flags);
852 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
854 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
855 hdev, data->isoc_rx_ep->bInterval);
857 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
859 __fill_isoc_descriptor(urb, size,
860 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
862 usb_anchor_urb(urb, &data->isoc_anchor);
864 err = usb_submit_urb(urb, mem_flags);
866 if (err != -EPERM && err != -ENODEV)
867 BT_ERR("%s urb %p submission failed (%d)",
868 hdev->name, urb, -err);
869 usb_unanchor_urb(urb);
877 static void btusb_diag_complete(struct urb *urb)
879 struct hci_dev *hdev = urb->context;
880 struct btusb_data *data = hci_get_drvdata(hdev);
883 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
886 if (urb->status == 0) {
889 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
891 memcpy(skb_put(skb, urb->actual_length),
892 urb->transfer_buffer, urb->actual_length);
893 hci_recv_diag(hdev, skb);
895 } else if (urb->status == -ENOENT) {
896 /* Avoid suspend failed when usb_kill_urb */
900 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
903 usb_anchor_urb(urb, &data->diag_anchor);
904 usb_mark_last_busy(data->udev);
906 err = usb_submit_urb(urb, GFP_ATOMIC);
908 /* -EPERM: urb is being killed;
909 * -ENODEV: device got disconnected */
910 if (err != -EPERM && err != -ENODEV)
911 BT_ERR("%s urb %p failed to resubmit (%d)",
912 hdev->name, urb, -err);
913 usb_unanchor_urb(urb);
917 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
919 struct btusb_data *data = hci_get_drvdata(hdev);
923 int err, size = HCI_MAX_FRAME_SIZE;
925 BT_DBG("%s", hdev->name);
927 if (!data->diag_rx_ep)
930 urb = usb_alloc_urb(0, mem_flags);
934 buf = kmalloc(size, mem_flags);
940 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
942 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
943 btusb_diag_complete, hdev);
945 urb->transfer_flags |= URB_FREE_BUFFER;
947 usb_mark_last_busy(data->udev);
948 usb_anchor_urb(urb, &data->diag_anchor);
950 err = usb_submit_urb(urb, mem_flags);
952 if (err != -EPERM && err != -ENODEV)
953 BT_ERR("%s urb %p submission failed (%d)",
954 hdev->name, urb, -err);
955 usb_unanchor_urb(urb);
963 static void btusb_tx_complete(struct urb *urb)
965 struct sk_buff *skb = urb->context;
966 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
967 struct btusb_data *data = hci_get_drvdata(hdev);
969 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
972 if (!test_bit(HCI_RUNNING, &hdev->flags))
976 hdev->stat.byte_tx += urb->transfer_buffer_length;
981 spin_lock(&data->txlock);
982 data->tx_in_flight--;
983 spin_unlock(&data->txlock);
985 kfree(urb->setup_packet);
990 static void btusb_isoc_tx_complete(struct urb *urb)
992 struct sk_buff *skb = urb->context;
993 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
995 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
998 if (!test_bit(HCI_RUNNING, &hdev->flags))
1002 hdev->stat.byte_tx += urb->transfer_buffer_length;
1004 hdev->stat.err_tx++;
1007 kfree(urb->setup_packet);
1012 static int btusb_open(struct hci_dev *hdev)
1014 struct btusb_data *data = hci_get_drvdata(hdev);
1017 BT_DBG("%s", hdev->name);
1019 /* Patching USB firmware files prior to starting any URBs of HCI path
1020 * It is more safe to use USB bulk channel for downloading USB patch
1022 if (data->setup_on_usb) {
1023 err = data->setup_on_usb(hdev);
1028 err = usb_autopm_get_interface(data->intf);
1032 data->intf->needs_remote_wakeup = 1;
1034 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1037 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1041 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1043 usb_kill_anchored_urbs(&data->intr_anchor);
1047 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1048 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1051 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1052 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1056 usb_autopm_put_interface(data->intf);
1060 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1061 usb_autopm_put_interface(data->intf);
1065 static void btusb_stop_traffic(struct btusb_data *data)
1067 usb_kill_anchored_urbs(&data->intr_anchor);
1068 usb_kill_anchored_urbs(&data->bulk_anchor);
1069 usb_kill_anchored_urbs(&data->isoc_anchor);
1070 usb_kill_anchored_urbs(&data->diag_anchor);
1073 static int btusb_close(struct hci_dev *hdev)
1075 struct btusb_data *data = hci_get_drvdata(hdev);
1078 BT_DBG("%s", hdev->name);
1080 cancel_work_sync(&data->work);
1081 cancel_work_sync(&data->waker);
1083 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1084 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1085 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1086 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1088 btusb_stop_traffic(data);
1089 btusb_free_frags(data);
1091 err = usb_autopm_get_interface(data->intf);
1095 data->intf->needs_remote_wakeup = 0;
1096 usb_autopm_put_interface(data->intf);
1099 usb_scuttle_anchored_urbs(&data->deferred);
1103 static int btusb_flush(struct hci_dev *hdev)
1105 struct btusb_data *data = hci_get_drvdata(hdev);
1107 BT_DBG("%s", hdev->name);
1109 usb_kill_anchored_urbs(&data->tx_anchor);
1110 btusb_free_frags(data);
1115 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1117 struct btusb_data *data = hci_get_drvdata(hdev);
1118 struct usb_ctrlrequest *dr;
1122 urb = usb_alloc_urb(0, GFP_KERNEL);
1124 return ERR_PTR(-ENOMEM);
1126 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1129 return ERR_PTR(-ENOMEM);
1132 dr->bRequestType = data->cmdreq_type;
1133 dr->bRequest = data->cmdreq;
1136 dr->wLength = __cpu_to_le16(skb->len);
1138 pipe = usb_sndctrlpipe(data->udev, 0x00);
1140 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1141 skb->data, skb->len, btusb_tx_complete, skb);
1143 skb->dev = (void *)hdev;
1148 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1150 struct btusb_data *data = hci_get_drvdata(hdev);
1154 if (!data->bulk_tx_ep)
1155 return ERR_PTR(-ENODEV);
1157 urb = usb_alloc_urb(0, GFP_KERNEL);
1159 return ERR_PTR(-ENOMEM);
1161 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1163 usb_fill_bulk_urb(urb, data->udev, pipe,
1164 skb->data, skb->len, btusb_tx_complete, skb);
1166 skb->dev = (void *)hdev;
1171 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1173 struct btusb_data *data = hci_get_drvdata(hdev);
1177 if (!data->isoc_tx_ep)
1178 return ERR_PTR(-ENODEV);
1180 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1182 return ERR_PTR(-ENOMEM);
1184 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1186 usb_fill_int_urb(urb, data->udev, pipe,
1187 skb->data, skb->len, btusb_isoc_tx_complete,
1188 skb, data->isoc_tx_ep->bInterval);
1190 urb->transfer_flags = URB_ISO_ASAP;
1192 __fill_isoc_descriptor(urb, skb->len,
1193 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1195 skb->dev = (void *)hdev;
1200 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1202 struct btusb_data *data = hci_get_drvdata(hdev);
1205 usb_anchor_urb(urb, &data->tx_anchor);
1207 err = usb_submit_urb(urb, GFP_KERNEL);
1209 if (err != -EPERM && err != -ENODEV)
1210 BT_ERR("%s urb %p submission failed (%d)",
1211 hdev->name, urb, -err);
1212 kfree(urb->setup_packet);
1213 usb_unanchor_urb(urb);
1215 usb_mark_last_busy(data->udev);
1222 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1224 struct btusb_data *data = hci_get_drvdata(hdev);
1225 unsigned long flags;
1228 spin_lock_irqsave(&data->txlock, flags);
1229 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1231 data->tx_in_flight++;
1232 spin_unlock_irqrestore(&data->txlock, flags);
1235 return submit_tx_urb(hdev, urb);
1237 usb_anchor_urb(urb, &data->deferred);
1238 schedule_work(&data->waker);
1244 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1248 BT_DBG("%s", hdev->name);
1250 switch (bt_cb(skb)->pkt_type) {
1251 case HCI_COMMAND_PKT:
1252 urb = alloc_ctrl_urb(hdev, skb);
1254 return PTR_ERR(urb);
1256 hdev->stat.cmd_tx++;
1257 return submit_or_queue_tx_urb(hdev, urb);
1259 case HCI_ACLDATA_PKT:
1260 urb = alloc_bulk_urb(hdev, skb);
1262 return PTR_ERR(urb);
1264 hdev->stat.acl_tx++;
1265 return submit_or_queue_tx_urb(hdev, urb);
1267 case HCI_SCODATA_PKT:
1268 if (hci_conn_num(hdev, SCO_LINK) < 1)
1271 urb = alloc_isoc_urb(hdev, skb);
1273 return PTR_ERR(urb);
1275 hdev->stat.sco_tx++;
1276 return submit_tx_urb(hdev, urb);
1282 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1284 struct btusb_data *data = hci_get_drvdata(hdev);
1286 BT_DBG("%s evt %d", hdev->name, evt);
1288 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1289 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1290 schedule_work(&data->work);
1294 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1296 struct btusb_data *data = hci_get_drvdata(hdev);
1297 struct usb_interface *intf = data->isoc;
1298 struct usb_endpoint_descriptor *ep_desc;
1304 err = usb_set_interface(data->udev, 1, altsetting);
1306 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1310 data->isoc_altsetting = altsetting;
1312 data->isoc_tx_ep = NULL;
1313 data->isoc_rx_ep = NULL;
1315 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1316 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1318 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1319 data->isoc_tx_ep = ep_desc;
1323 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1324 data->isoc_rx_ep = ep_desc;
1329 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1330 BT_ERR("%s invalid SCO descriptors", hdev->name);
1337 static void btusb_work(struct work_struct *work)
1339 struct btusb_data *data = container_of(work, struct btusb_data, work);
1340 struct hci_dev *hdev = data->hdev;
1344 if (data->sco_num > 0) {
1345 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1346 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1348 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1349 usb_kill_anchored_urbs(&data->isoc_anchor);
1353 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1356 if (hdev->voice_setting & 0x0020) {
1357 static const int alts[3] = { 2, 4, 5 };
1359 new_alts = alts[data->sco_num - 1];
1361 new_alts = data->sco_num;
1364 if (data->isoc_altsetting != new_alts) {
1365 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1366 usb_kill_anchored_urbs(&data->isoc_anchor);
1368 /* When isochronous alternate setting needs to be
1369 * changed, because SCO connection has been added
1370 * or removed, a packet fragment may be left in the
1371 * reassembling state. This could lead to wrongly
1372 * assembled fragments.
1374 * Clear outstanding fragment when selecting a new
1375 * alternate setting.
1377 spin_lock(&data->rxlock);
1378 kfree_skb(data->sco_skb);
1379 data->sco_skb = NULL;
1380 spin_unlock(&data->rxlock);
1382 if (__set_isoc_interface(hdev, new_alts) < 0)
1386 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1387 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1388 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1390 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1393 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1394 usb_kill_anchored_urbs(&data->isoc_anchor);
1396 __set_isoc_interface(hdev, 0);
1397 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1398 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1402 static void btusb_waker(struct work_struct *work)
1404 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1407 err = usb_autopm_get_interface(data->intf);
1411 usb_autopm_put_interface(data->intf);
1414 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1416 struct sk_buff *skb;
1419 BT_DBG("%s", hdev->name);
1421 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1423 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1430 static int btusb_setup_csr(struct hci_dev *hdev)
1432 struct hci_rp_read_local_version *rp;
1433 struct sk_buff *skb;
1435 BT_DBG("%s", hdev->name);
1437 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1440 int err = PTR_ERR(skb);
1441 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1445 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1446 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1451 rp = (struct hci_rp_read_local_version *)skb->data;
1453 /* Detect controllers which aren't real CSR ones. */
1454 if (le16_to_cpu(rp->manufacturer) != 10 ||
1455 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1456 /* Clear the reset quirk since this is not an actual
1457 * early Bluetooth 1.1 device from CSR.
1459 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1461 /* These fake CSR controllers have all a broken
1462 * stored link key handling and so just disable it.
1464 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1472 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1473 struct intel_version *ver)
1475 const struct firmware *fw;
1479 snprintf(fwname, sizeof(fwname),
1480 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1481 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1482 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1483 ver->fw_build_ww, ver->fw_build_yy);
1485 ret = request_firmware(&fw, fwname, &hdev->dev);
1487 if (ret == -EINVAL) {
1488 BT_ERR("%s Intel firmware file request failed (%d)",
1493 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1494 hdev->name, fwname, ret);
1496 /* If the correct firmware patch file is not found, use the
1497 * default firmware patch file instead
1499 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1500 ver->hw_platform, ver->hw_variant);
1501 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1502 BT_ERR("%s failed to open default Intel fw file: %s",
1503 hdev->name, fwname);
1508 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1513 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1514 const struct firmware *fw,
1515 const u8 **fw_ptr, int *disable_patch)
1517 struct sk_buff *skb;
1518 struct hci_command_hdr *cmd;
1519 const u8 *cmd_param;
1520 struct hci_event_hdr *evt = NULL;
1521 const u8 *evt_param = NULL;
1522 int remain = fw->size - (*fw_ptr - fw->data);
1524 /* The first byte indicates the types of the patch command or event.
1525 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1526 * in the current firmware buffer doesn't start with 0x01 or
1527 * the size of remain buffer is smaller than HCI command header,
1528 * the firmware file is corrupted and it should stop the patching
1531 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1532 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1538 cmd = (struct hci_command_hdr *)(*fw_ptr);
1539 *fw_ptr += sizeof(*cmd);
1540 remain -= sizeof(*cmd);
1542 /* Ensure that the remain firmware data is long enough than the length
1543 * of command parameter. If not, the firmware file is corrupted.
1545 if (remain < cmd->plen) {
1546 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1550 /* If there is a command that loads a patch in the firmware
1551 * file, then enable the patch upon success, otherwise just
1552 * disable the manufacturer mode, for example patch activation
1553 * is not required when the default firmware patch file is used
1554 * because there are no patch data to load.
1556 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1559 cmd_param = *fw_ptr;
1560 *fw_ptr += cmd->plen;
1561 remain -= cmd->plen;
1563 /* This reads the expected events when the above command is sent to the
1564 * device. Some vendor commands expects more than one events, for
1565 * example command status event followed by vendor specific event.
1566 * For this case, it only keeps the last expected event. so the command
1567 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1568 * last expected event.
1570 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1574 evt = (struct hci_event_hdr *)(*fw_ptr);
1575 *fw_ptr += sizeof(*evt);
1576 remain -= sizeof(*evt);
1578 if (remain < evt->plen) {
1579 BT_ERR("%s Intel fw corrupted: invalid evt len",
1584 evt_param = *fw_ptr;
1585 *fw_ptr += evt->plen;
1586 remain -= evt->plen;
1589 /* Every HCI commands in the firmware file has its correspond event.
1590 * If event is not found or remain is smaller than zero, the firmware
1591 * file is corrupted.
1593 if (!evt || !evt_param || remain < 0) {
1594 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1598 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1599 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1601 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1602 hdev->name, cmd->opcode, PTR_ERR(skb));
1603 return PTR_ERR(skb);
1606 /* It ensures that the returned event matches the event data read from
1607 * the firmware file. At fist, it checks the length and then
1608 * the contents of the event.
1610 if (skb->len != evt->plen) {
1611 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1612 le16_to_cpu(cmd->opcode));
1617 if (memcmp(skb->data, evt_param, evt->plen)) {
1618 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1619 hdev->name, le16_to_cpu(cmd->opcode));
1628 static int btusb_setup_intel(struct hci_dev *hdev)
1630 struct sk_buff *skb;
1631 const struct firmware *fw;
1634 struct intel_version *ver;
1636 const u8 mfg_enable[] = { 0x01, 0x00 };
1637 const u8 mfg_disable[] = { 0x00, 0x00 };
1638 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1639 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1641 BT_DBG("%s", hdev->name);
1643 /* The controller has a bug with the first HCI command sent to it
1644 * returning number of completed commands as zero. This would stall the
1645 * command processing in the Bluetooth core.
1647 * As a workaround, send HCI Reset command first which will reset the
1648 * number of completed commands and allow normal command processing
1651 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1653 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1654 hdev->name, PTR_ERR(skb));
1655 return PTR_ERR(skb);
1659 /* Read Intel specific controller version first to allow selection of
1660 * which firmware file to load.
1662 * The returned information are hardware variant and revision plus
1663 * firmware variant, revision and build number.
1665 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1667 BT_ERR("%s reading Intel fw version command failed (%ld)",
1668 hdev->name, PTR_ERR(skb));
1669 return PTR_ERR(skb);
1672 if (skb->len != sizeof(*ver)) {
1673 BT_ERR("%s Intel version event length mismatch", hdev->name);
1678 ver = (struct intel_version *)skb->data;
1680 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1681 hdev->name, ver->hw_platform, ver->hw_variant,
1682 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1683 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1686 /* fw_patch_num indicates the version of patch the device currently
1687 * have. If there is no patch data in the device, it is always 0x00.
1688 * So, if it is other than 0x00, no need to patch the device again.
1690 if (ver->fw_patch_num) {
1691 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1692 hdev->name, ver->fw_patch_num);
1694 btintel_check_bdaddr(hdev);
1698 /* Opens the firmware patch file based on the firmware version read
1699 * from the controller. If it fails to open the matching firmware
1700 * patch file, it tries to open the default firmware patch file.
1701 * If no patch file is found, allow the device to operate without
1704 fw = btusb_setup_intel_get_fw(hdev, ver);
1707 btintel_check_bdaddr(hdev);
1714 /* This Intel specific command enables the manufacturer mode of the
1717 * Only while this mode is enabled, the driver can download the
1718 * firmware patch data and configuration parameters.
1720 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1722 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1723 hdev->name, PTR_ERR(skb));
1724 release_firmware(fw);
1725 return PTR_ERR(skb);
1732 /* The firmware data file consists of list of Intel specific HCI
1733 * commands and its expected events. The first byte indicates the
1734 * type of the message, either HCI command or HCI event.
1736 * It reads the command and its expected event from the firmware file,
1737 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1738 * the returned event is compared with the event read from the firmware
1739 * file and it will continue until all the messages are downloaded to
1742 * Once the firmware patching is completed successfully,
1743 * the manufacturer mode is disabled with reset and activating the
1746 * If the firmware patching fails, the manufacturer mode is
1747 * disabled with reset and deactivating the patch.
1749 * If the default patch file is used, no reset is done when disabling
1752 while (fw->size > fw_ptr - fw->data) {
1755 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1758 goto exit_mfg_deactivate;
1761 release_firmware(fw);
1764 goto exit_mfg_disable;
1766 /* Patching completed successfully and disable the manufacturer mode
1767 * with reset and activate the downloaded firmware patches.
1769 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1770 mfg_reset_activate, HCI_INIT_TIMEOUT);
1772 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1773 hdev->name, PTR_ERR(skb));
1774 return PTR_ERR(skb);
1778 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1781 btintel_check_bdaddr(hdev);
1785 /* Disable the manufacturer mode without reset */
1786 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1789 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1790 hdev->name, PTR_ERR(skb));
1791 return PTR_ERR(skb);
1795 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1797 btintel_check_bdaddr(hdev);
1800 exit_mfg_deactivate:
1801 release_firmware(fw);
1803 /* Patching failed. Disable the manufacturer mode with reset and
1804 * deactivate the downloaded firmware patches.
1806 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1807 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1809 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1810 hdev->name, PTR_ERR(skb));
1811 return PTR_ERR(skb);
1815 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1818 btintel_check_bdaddr(hdev);
1822 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1824 struct sk_buff *skb;
1825 struct hci_event_hdr *hdr;
1826 struct hci_ev_cmd_complete *evt;
1828 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1832 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1833 hdr->evt = HCI_EV_CMD_COMPLETE;
1834 hdr->plen = sizeof(*evt) + 1;
1836 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1838 evt->opcode = cpu_to_le16(opcode);
1840 *skb_put(skb, 1) = 0x00;
1842 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1844 return hci_recv_frame(hdev, skb);
1847 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1850 /* When the device is in bootloader mode, then it can send
1851 * events via the bulk endpoint. These events are treated the
1852 * same way as the ones received from the interrupt endpoint.
1854 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1855 return btusb_recv_intr(data, buffer, count);
1857 return btusb_recv_bulk(data, buffer, count);
1860 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1863 const struct intel_bootup *evt = ptr;
1865 if (len != sizeof(*evt))
1868 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1869 smp_mb__after_atomic();
1870 wake_up_bit(&data->flags, BTUSB_BOOTING);
1874 static void btusb_intel_secure_send_result(struct btusb_data *data,
1875 const void *ptr, unsigned int len)
1877 const struct intel_secure_send_result *evt = ptr;
1879 if (len != sizeof(*evt))
1883 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1885 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1886 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1887 smp_mb__after_atomic();
1888 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1892 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1894 struct btusb_data *data = hci_get_drvdata(hdev);
1896 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1897 struct hci_event_hdr *hdr = (void *)skb->data;
1899 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1901 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1902 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1904 switch (skb->data[2]) {
1906 /* When switching to the operational firmware
1907 * the device sends a vendor specific event
1908 * indicating that the bootup completed.
1910 btusb_intel_bootup(data, ptr, len);
1913 /* When the firmware loading completes the
1914 * device sends out a vendor specific event
1915 * indicating the result of the firmware
1918 btusb_intel_secure_send_result(data, ptr, len);
1924 return hci_recv_frame(hdev, skb);
1927 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1929 struct btusb_data *data = hci_get_drvdata(hdev);
1932 BT_DBG("%s", hdev->name);
1934 switch (bt_cb(skb)->pkt_type) {
1935 case HCI_COMMAND_PKT:
1936 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1937 struct hci_command_hdr *cmd = (void *)skb->data;
1938 __u16 opcode = le16_to_cpu(cmd->opcode);
1940 /* When in bootloader mode and the command 0xfc09
1941 * is received, it needs to be send down the
1942 * bulk endpoint. So allocate a bulk URB instead.
1944 if (opcode == 0xfc09)
1945 urb = alloc_bulk_urb(hdev, skb);
1947 urb = alloc_ctrl_urb(hdev, skb);
1949 /* When the 0xfc01 command is issued to boot into
1950 * the operational firmware, it will actually not
1951 * send a command complete event. To keep the flow
1952 * control working inject that event here.
1954 if (opcode == 0xfc01)
1955 inject_cmd_complete(hdev, opcode);
1957 urb = alloc_ctrl_urb(hdev, skb);
1960 return PTR_ERR(urb);
1962 hdev->stat.cmd_tx++;
1963 return submit_or_queue_tx_urb(hdev, urb);
1965 case HCI_ACLDATA_PKT:
1966 urb = alloc_bulk_urb(hdev, skb);
1968 return PTR_ERR(urb);
1970 hdev->stat.acl_tx++;
1971 return submit_or_queue_tx_urb(hdev, urb);
1973 case HCI_SCODATA_PKT:
1974 if (hci_conn_num(hdev, SCO_LINK) < 1)
1977 urb = alloc_isoc_urb(hdev, skb);
1979 return PTR_ERR(urb);
1981 hdev->stat.sco_tx++;
1982 return submit_tx_urb(hdev, urb);
1988 static int btusb_setup_intel_new(struct hci_dev *hdev)
1990 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1991 0x00, 0x08, 0x04, 0x00 };
1992 struct btusb_data *data = hci_get_drvdata(hdev);
1993 struct sk_buff *skb;
1994 struct intel_version *ver;
1995 struct intel_boot_params *params;
1996 const struct firmware *fw;
2000 ktime_t calltime, delta, rettime;
2001 unsigned long long duration;
2004 BT_DBG("%s", hdev->name);
2006 calltime = ktime_get();
2008 /* Read the Intel version information to determine if the device
2009 * is in bootloader mode or if it already has operational firmware
2012 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2014 BT_ERR("%s: Reading Intel version information failed (%ld)",
2015 hdev->name, PTR_ERR(skb));
2016 return PTR_ERR(skb);
2019 if (skb->len != sizeof(*ver)) {
2020 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2025 ver = (struct intel_version *)skb->data;
2027 /* The hardware platform number has a fixed value of 0x37 and
2028 * for now only accept this single value.
2030 if (ver->hw_platform != 0x37) {
2031 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2032 hdev->name, ver->hw_platform);
2037 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2038 * supported by this firmware loading method. This check has been
2039 * put in place to ensure correct forward compatibility options
2040 * when newer hardware variants come along.
2042 if (ver->hw_variant != 0x0b) {
2043 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2044 hdev->name, ver->hw_variant);
2049 btintel_version_info(hdev, ver);
2051 /* The firmware variant determines if the device is in bootloader
2052 * mode or is running operational firmware. The value 0x06 identifies
2053 * the bootloader and the value 0x23 identifies the operational
2056 * When the operational firmware is already present, then only
2057 * the check for valid Bluetooth device address is needed. This
2058 * determines if the device will be added as configured or
2059 * unconfigured controller.
2061 * It is not possible to use the Secure Boot Parameters in this
2062 * case since that command is only available in bootloader mode.
2064 if (ver->fw_variant == 0x23) {
2066 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2067 btintel_check_bdaddr(hdev);
2071 /* If the device is not in bootloader mode, then the only possible
2072 * choice is to return an error and abort the device initialization.
2074 if (ver->fw_variant != 0x06) {
2075 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2076 hdev->name, ver->fw_variant);
2083 /* Read the secure boot parameters to identify the operating
2084 * details of the bootloader.
2086 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2088 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2089 hdev->name, PTR_ERR(skb));
2090 return PTR_ERR(skb);
2093 if (skb->len != sizeof(*params)) {
2094 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2099 params = (struct intel_boot_params *)skb->data;
2101 BT_INFO("%s: Device revision is %u", hdev->name,
2102 le16_to_cpu(params->dev_revid));
2104 BT_INFO("%s: Secure boot is %s", hdev->name,
2105 params->secure_boot ? "enabled" : "disabled");
2107 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2108 params->min_fw_build_nn, params->min_fw_build_cw,
2109 2000 + params->min_fw_build_yy);
2111 /* It is required that every single firmware fragment is acknowledged
2112 * with a command complete event. If the boot parameters indicate
2113 * that this bootloader does not send them, then abort the setup.
2115 if (params->limited_cce != 0x00) {
2116 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2117 hdev->name, params->limited_cce);
2122 /* If the OTP has no valid Bluetooth device address, then there will
2123 * also be no valid address for the operational firmware.
2125 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2126 BT_INFO("%s: No device address configured", hdev->name);
2127 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2130 /* With this Intel bootloader only the hardware variant and device
2131 * revision information are used to select the right firmware.
2133 * Currently this bootloader support is limited to hardware variant
2134 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2136 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2137 le16_to_cpu(params->dev_revid));
2139 err = request_firmware(&fw, fwname, &hdev->dev);
2141 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2147 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2149 /* Save the DDC file name for later use to apply once the firmware
2150 * downloading is done.
2152 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2153 le16_to_cpu(params->dev_revid));
2157 if (fw->size < 644) {
2158 BT_ERR("%s: Invalid size of firmware file (%zu)",
2159 hdev->name, fw->size);
2164 set_bit(BTUSB_DOWNLOADING, &data->flags);
2166 /* Start the firmware download transaction with the Init fragment
2167 * represented by the 128 bytes of CSS header.
2169 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2171 BT_ERR("%s: Failed to send firmware header (%d)",
2176 /* Send the 256 bytes of public key information from the firmware
2177 * as the PKey fragment.
2179 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2181 BT_ERR("%s: Failed to send firmware public key (%d)",
2186 /* Send the 256 bytes of signature information from the firmware
2187 * as the Sign fragment.
2189 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2191 BT_ERR("%s: Failed to send firmware signature (%d)",
2196 fw_ptr = fw->data + 644;
2199 while (fw_ptr - fw->data < fw->size) {
2200 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2202 frag_len += sizeof(*cmd) + cmd->plen;
2204 /* The parameter length of the secure send command requires
2205 * a 4 byte alignment. It happens so that the firmware file
2206 * contains proper Intel_NOP commands to align the fragments
2209 * Send set of commands with 4 byte alignment from the
2210 * firmware data buffer as a single Data fragement.
2212 if (!(frag_len % 4)) {
2213 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2215 BT_ERR("%s: Failed to send firmware data (%d)",
2225 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2227 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2229 /* Before switching the device into operational mode and with that
2230 * booting the loaded firmware, wait for the bootloader notification
2231 * that all fragments have been successfully received.
2233 * When the event processing receives the notification, then the
2234 * BTUSB_DOWNLOADING flag will be cleared.
2236 * The firmware loading should not take longer than 5 seconds
2237 * and thus just timeout if that happens and fail the setup
2240 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2242 msecs_to_jiffies(5000));
2244 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2250 BT_ERR("%s: Firmware loading timeout", hdev->name);
2255 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2256 BT_ERR("%s: Firmware loading failed", hdev->name);
2261 rettime = ktime_get();
2262 delta = ktime_sub(rettime, calltime);
2263 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2265 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2268 release_firmware(fw);
2273 calltime = ktime_get();
2275 set_bit(BTUSB_BOOTING, &data->flags);
2277 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2280 return PTR_ERR(skb);
2284 /* The bootloader will not indicate when the device is ready. This
2285 * is done by the operational firmware sending bootup notification.
2287 * Booting into operational firmware should not take longer than
2288 * 1 second. However if that happens, then just fail the setup
2289 * since something went wrong.
2291 BT_INFO("%s: Waiting for device to boot", hdev->name);
2293 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2295 msecs_to_jiffies(1000));
2298 BT_ERR("%s: Device boot interrupted", hdev->name);
2303 BT_ERR("%s: Device boot timeout", hdev->name);
2307 rettime = ktime_get();
2308 delta = ktime_sub(rettime, calltime);
2309 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2311 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2313 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2315 /* Once the device is running in operational mode, it needs to apply
2316 * the device configuration (DDC) parameters.
2318 * The device can work without DDC parameters, so even if it fails
2319 * to load the file, no need to fail the setup.
2321 btintel_load_ddc_config(hdev, fwname);
2326 static int btusb_shutdown_intel(struct hci_dev *hdev)
2328 struct sk_buff *skb;
2331 /* Some platforms have an issue with BT LED when the interface is
2332 * down or BT radio is turned off, which takes 5 seconds to BT LED
2333 * goes off. This command turns off the BT LED immediately.
2335 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2338 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2347 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2348 const bdaddr_t *bdaddr)
2350 struct sk_buff *skb;
2355 buf[1] = sizeof(bdaddr_t);
2356 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2358 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2361 BT_ERR("%s: changing Marvell device address failed (%ld)",
2370 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2371 const bdaddr_t *bdaddr)
2373 struct sk_buff *skb;
2380 buf[3] = sizeof(bdaddr_t);
2381 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2383 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2386 BT_ERR("%s: Change address command failed (%ld)",
2395 #define QCA_DFU_PACKET_LEN 4096
2397 #define QCA_GET_TARGET_VERSION 0x09
2398 #define QCA_CHECK_STATUS 0x05
2399 #define QCA_DFU_DOWNLOAD 0x01
2401 #define QCA_SYSCFG_UPDATED 0x40
2402 #define QCA_PATCH_UPDATED 0x80
2403 #define QCA_DFU_TIMEOUT 3000
2405 struct qca_version {
2407 __le32 patch_version;
2413 struct qca_rampatch_version {
2415 __le16 patch_version;
2418 struct qca_device_info {
2420 u8 rampatch_hdr; /* length of header in rampatch */
2421 u8 nvm_hdr; /* length of header in NVM */
2422 u8 ver_offset; /* offset of version structure in rampatch */
2425 static const struct qca_device_info qca_devices_table[] = {
2426 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2427 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2428 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2429 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2430 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2431 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2434 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2435 void *data, u16 size)
2437 struct btusb_data *btdata = hci_get_drvdata(hdev);
2438 struct usb_device *udev = btdata->udev;
2442 buf = kmalloc(size, GFP_KERNEL);
2446 /* Found some of USB hosts have IOT issues with ours so that we should
2447 * not wait until HCI layer is ready.
2449 pipe = usb_rcvctrlpipe(udev, 0);
2450 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2451 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2453 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2457 memcpy(data, buf, size);
2465 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2466 const struct firmware *firmware,
2469 struct btusb_data *btdata = hci_get_drvdata(hdev);
2470 struct usb_device *udev = btdata->udev;
2471 size_t count, size, sent = 0;
2475 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2479 count = firmware->size;
2481 size = min_t(size_t, count, hdr_size);
2482 memcpy(buf, firmware->data, size);
2484 /* USB patches should go down to controller through USB path
2485 * because binary format fits to go down through USB channel.
2486 * USB control path is for patching headers and USB bulk is for
2489 pipe = usb_sndctrlpipe(udev, 0);
2490 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2491 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2493 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2501 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2503 memcpy(buf, firmware->data + sent, size);
2505 pipe = usb_sndbulkpipe(udev, 0x02);
2506 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2509 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2510 hdev->name, sent, firmware->size, err);
2515 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2529 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2530 struct qca_version *ver,
2531 const struct qca_device_info *info)
2533 struct qca_rampatch_version *rver;
2534 const struct firmware *fw;
2535 u32 ver_rom, ver_patch;
2536 u16 rver_rom, rver_patch;
2540 ver_rom = le32_to_cpu(ver->rom_version);
2541 ver_patch = le32_to_cpu(ver->patch_version);
2543 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2545 err = request_firmware(&fw, fwname, &hdev->dev);
2547 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2548 hdev->name, fwname, err);
2552 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2554 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2555 rver_rom = le16_to_cpu(rver->rom_version);
2556 rver_patch = le16_to_cpu(rver->patch_version);
2558 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2559 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2562 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2563 BT_ERR("%s: rampatch file version did not match with firmware",
2569 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2572 release_firmware(fw);
2577 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2578 struct qca_version *ver,
2579 const struct qca_device_info *info)
2581 const struct firmware *fw;
2585 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2586 le32_to_cpu(ver->rom_version));
2588 err = request_firmware(&fw, fwname, &hdev->dev);
2590 BT_ERR("%s: failed to request NVM file: %s (%d)",
2591 hdev->name, fwname, err);
2595 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2597 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2599 release_firmware(fw);
2604 static int btusb_setup_qca(struct hci_dev *hdev)
2606 const struct qca_device_info *info = NULL;
2607 struct qca_version ver;
2612 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2617 ver_rom = le32_to_cpu(ver.rom_version);
2618 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2619 if (ver_rom == qca_devices_table[i].rom_version)
2620 info = &qca_devices_table[i];
2623 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2628 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2633 if (!(status & QCA_PATCH_UPDATED)) {
2634 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2639 if (!(status & QCA_SYSCFG_UPDATED)) {
2640 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2648 #ifdef CONFIG_BT_HCIBTUSB_BCM
2649 static inline int __set_diag_interface(struct hci_dev *hdev)
2651 struct btusb_data *data = hci_get_drvdata(hdev);
2652 struct usb_interface *intf = data->diag;
2658 data->diag_tx_ep = NULL;
2659 data->diag_rx_ep = NULL;
2661 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2662 struct usb_endpoint_descriptor *ep_desc;
2664 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2666 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2667 data->diag_tx_ep = ep_desc;
2671 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2672 data->diag_rx_ep = ep_desc;
2677 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2678 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2685 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2687 struct btusb_data *data = hci_get_drvdata(hdev);
2688 struct sk_buff *skb;
2692 if (!data->diag_tx_ep)
2693 return ERR_PTR(-ENODEV);
2695 urb = usb_alloc_urb(0, GFP_KERNEL);
2697 return ERR_PTR(-ENOMEM);
2699 skb = bt_skb_alloc(2, GFP_KERNEL);
2702 return ERR_PTR(-ENOMEM);
2705 *skb_put(skb, 1) = 0xf0;
2706 *skb_put(skb, 1) = enable;
2708 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2710 usb_fill_bulk_urb(urb, data->udev, pipe,
2711 skb->data, skb->len, btusb_tx_complete, skb);
2713 skb->dev = (void *)hdev;
2718 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2720 struct btusb_data *data = hci_get_drvdata(hdev);
2726 if (!test_bit(HCI_RUNNING, &hdev->flags))
2729 urb = alloc_diag_urb(hdev, enable);
2731 return PTR_ERR(urb);
2733 return submit_or_queue_tx_urb(hdev, urb);
2737 static int btusb_probe(struct usb_interface *intf,
2738 const struct usb_device_id *id)
2740 struct usb_endpoint_descriptor *ep_desc;
2741 struct btusb_data *data;
2742 struct hci_dev *hdev;
2745 BT_DBG("intf %p id %p", intf, id);
2747 /* interface numbers are hardcoded in the spec */
2748 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2751 if (!id->driver_info) {
2752 const struct usb_device_id *match;
2754 match = usb_match_id(intf, blacklist_table);
2759 if (id->driver_info == BTUSB_IGNORE)
2762 if (id->driver_info & BTUSB_ATH3012) {
2763 struct usb_device *udev = interface_to_usbdev(intf);
2765 /* Old firmware would otherwise let ath3k driver load
2766 * patch and sysconfig files */
2767 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2771 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2775 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2776 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2778 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2779 data->intr_ep = ep_desc;
2783 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2784 data->bulk_tx_ep = ep_desc;
2788 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2789 data->bulk_rx_ep = ep_desc;
2794 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2797 if (id->driver_info & BTUSB_AMP) {
2798 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2799 data->cmdreq = 0x2b;
2801 data->cmdreq_type = USB_TYPE_CLASS;
2802 data->cmdreq = 0x00;
2805 data->udev = interface_to_usbdev(intf);
2808 INIT_WORK(&data->work, btusb_work);
2809 INIT_WORK(&data->waker, btusb_waker);
2810 init_usb_anchor(&data->deferred);
2811 init_usb_anchor(&data->tx_anchor);
2812 spin_lock_init(&data->txlock);
2814 init_usb_anchor(&data->intr_anchor);
2815 init_usb_anchor(&data->bulk_anchor);
2816 init_usb_anchor(&data->isoc_anchor);
2817 init_usb_anchor(&data->diag_anchor);
2818 spin_lock_init(&data->rxlock);
2820 if (id->driver_info & BTUSB_INTEL_NEW) {
2821 data->recv_event = btusb_recv_event_intel;
2822 data->recv_bulk = btusb_recv_bulk_intel;
2823 set_bit(BTUSB_BOOTLOADER, &data->flags);
2825 data->recv_event = hci_recv_frame;
2826 data->recv_bulk = btusb_recv_bulk;
2829 hdev = hci_alloc_dev();
2833 hdev->bus = HCI_USB;
2834 hci_set_drvdata(hdev, data);
2836 if (id->driver_info & BTUSB_AMP)
2837 hdev->dev_type = HCI_AMP;
2839 hdev->dev_type = HCI_BREDR;
2843 SET_HCIDEV_DEV(hdev, &intf->dev);
2845 hdev->open = btusb_open;
2846 hdev->close = btusb_close;
2847 hdev->flush = btusb_flush;
2848 hdev->send = btusb_send_frame;
2849 hdev->notify = btusb_notify;
2851 if (id->driver_info & BTUSB_BCM92035)
2852 hdev->setup = btusb_setup_bcm92035;
2854 #ifdef CONFIG_BT_HCIBTUSB_BCM
2855 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2856 hdev->setup = btbcm_setup_patchram;
2857 hdev->set_diag = btusb_bcm_set_diag;
2858 hdev->set_bdaddr = btbcm_set_bdaddr;
2860 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2861 data->diag = usb_ifnum_to_if(data->udev, 2);
2864 if (id->driver_info & BTUSB_BCM_APPLE) {
2865 hdev->setup = btbcm_setup_apple;
2866 hdev->set_diag = btusb_bcm_set_diag;
2868 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2869 data->diag = usb_ifnum_to_if(data->udev, 2);
2873 if (id->driver_info & BTUSB_INTEL) {
2874 hdev->setup = btusb_setup_intel;
2875 hdev->shutdown = btusb_shutdown_intel;
2876 hdev->set_bdaddr = btintel_set_bdaddr;
2877 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2878 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2881 if (id->driver_info & BTUSB_INTEL_NEW) {
2882 hdev->send = btusb_send_frame_intel;
2883 hdev->setup = btusb_setup_intel_new;
2884 hdev->hw_error = btintel_hw_error;
2885 hdev->set_bdaddr = btintel_set_bdaddr;
2886 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2889 if (id->driver_info & BTUSB_MARVELL)
2890 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2892 if (id->driver_info & BTUSB_SWAVE) {
2893 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2894 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2897 if (id->driver_info & BTUSB_INTEL_BOOT)
2898 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2900 if (id->driver_info & BTUSB_ATH3012) {
2901 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2902 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2903 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2906 if (id->driver_info & BTUSB_QCA_ROME) {
2907 data->setup_on_usb = btusb_setup_qca;
2908 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2911 #ifdef CONFIG_BT_HCIBTUSB_RTL
2912 if (id->driver_info & BTUSB_REALTEK) {
2913 hdev->setup = btrtl_setup_realtek;
2915 /* Realtek devices lose their updated firmware over suspend,
2916 * but the USB hub doesn't notice any status change.
2917 * Explicitly request a device reset on resume.
2919 set_bit(BTUSB_RESET_RESUME, &data->flags);
2923 if (id->driver_info & BTUSB_AMP) {
2924 /* AMP controllers do not support SCO packets */
2927 /* Interface numbers are hardcoded in the specification */
2928 data->isoc = usb_ifnum_to_if(data->udev, 1);
2932 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2934 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2935 if (!disable_scofix)
2936 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2939 if (id->driver_info & BTUSB_BROKEN_ISOC)
2942 if (id->driver_info & BTUSB_DIGIANSWER) {
2943 data->cmdreq_type = USB_TYPE_VENDOR;
2944 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2947 if (id->driver_info & BTUSB_CSR) {
2948 struct usb_device *udev = data->udev;
2949 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2951 /* Old firmware would otherwise execute USB reset */
2952 if (bcdDevice < 0x117)
2953 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2955 /* Fake CSR devices with broken commands */
2956 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
2957 hdev->setup = btusb_setup_csr;
2959 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2962 if (id->driver_info & BTUSB_SNIFFER) {
2963 struct usb_device *udev = data->udev;
2965 /* New sniffer firmware has crippled HCI interface */
2966 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2967 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2970 if (id->driver_info & BTUSB_INTEL_BOOT) {
2971 /* A bug in the bootloader causes that interrupt interface is
2972 * only enabled after receiving SetInterface(0, AltSetting=0).
2974 err = usb_set_interface(data->udev, 0, 0);
2976 BT_ERR("failed to set interface 0, alt 0 %d", err);
2983 err = usb_driver_claim_interface(&btusb_driver,
2991 #ifdef CONFIG_BT_HCIBTUSB_BCM
2993 if (!usb_driver_claim_interface(&btusb_driver,
2995 __set_diag_interface(hdev);
3001 err = hci_register_dev(hdev);
3007 usb_set_intfdata(intf, data);
3012 static void btusb_disconnect(struct usb_interface *intf)
3014 struct btusb_data *data = usb_get_intfdata(intf);
3015 struct hci_dev *hdev;
3017 BT_DBG("intf %p", intf);
3023 usb_set_intfdata(data->intf, NULL);
3026 usb_set_intfdata(data->isoc, NULL);
3029 usb_set_intfdata(data->diag, NULL);
3031 hci_unregister_dev(hdev);
3033 if (intf == data->intf) {
3035 usb_driver_release_interface(&btusb_driver, data->isoc);
3037 usb_driver_release_interface(&btusb_driver, data->diag);
3038 } else if (intf == data->isoc) {
3040 usb_driver_release_interface(&btusb_driver, data->diag);
3041 usb_driver_release_interface(&btusb_driver, data->intf);
3042 } else if (intf == data->diag) {
3043 usb_driver_release_interface(&btusb_driver, data->intf);
3045 usb_driver_release_interface(&btusb_driver, data->isoc);
3052 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3054 struct btusb_data *data = usb_get_intfdata(intf);
3056 BT_DBG("intf %p", intf);
3058 if (data->suspend_count++)
3061 spin_lock_irq(&data->txlock);
3062 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3063 set_bit(BTUSB_SUSPENDING, &data->flags);
3064 spin_unlock_irq(&data->txlock);
3066 spin_unlock_irq(&data->txlock);
3067 data->suspend_count--;
3071 cancel_work_sync(&data->work);
3073 btusb_stop_traffic(data);
3074 usb_kill_anchored_urbs(&data->tx_anchor);
3076 /* Optionally request a device reset on resume, but only when
3077 * wakeups are disabled. If wakeups are enabled we assume the
3078 * device will stay powered up throughout suspend.
3080 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3081 !device_may_wakeup(&data->udev->dev))
3082 data->udev->reset_resume = 1;
3087 static void play_deferred(struct btusb_data *data)
3092 while ((urb = usb_get_from_anchor(&data->deferred))) {
3093 err = usb_submit_urb(urb, GFP_ATOMIC);
3097 data->tx_in_flight++;
3099 usb_scuttle_anchored_urbs(&data->deferred);
3102 static int btusb_resume(struct usb_interface *intf)
3104 struct btusb_data *data = usb_get_intfdata(intf);
3105 struct hci_dev *hdev = data->hdev;
3108 BT_DBG("intf %p", intf);
3110 if (--data->suspend_count)
3113 if (!test_bit(HCI_RUNNING, &hdev->flags))
3116 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3117 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3119 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3124 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3125 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3127 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3131 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3134 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3135 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3136 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3138 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3141 spin_lock_irq(&data->txlock);
3142 play_deferred(data);
3143 clear_bit(BTUSB_SUSPENDING, &data->flags);
3144 spin_unlock_irq(&data->txlock);
3145 schedule_work(&data->work);
3150 usb_scuttle_anchored_urbs(&data->deferred);
3152 spin_lock_irq(&data->txlock);
3153 clear_bit(BTUSB_SUSPENDING, &data->flags);
3154 spin_unlock_irq(&data->txlock);
3160 static struct usb_driver btusb_driver = {
3162 .probe = btusb_probe,
3163 .disconnect = btusb_disconnect,
3165 .suspend = btusb_suspend,
3166 .resume = btusb_resume,
3168 .id_table = btusb_table,
3169 .supports_autosuspend = 1,
3170 .disable_hub_initiated_lpm = 1,
3173 module_usb_driver(btusb_driver);
3175 module_param(disable_scofix, bool, 0644);
3176 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3178 module_param(force_scofix, bool, 0644);
3179 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3181 module_param(reset, bool, 0644);
3182 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3184 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3185 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3186 MODULE_VERSION(VERSION);
3187 MODULE_LICENSE("GPL");