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
63 #define BTUSB_BCM2045 0x40000
64 #define BTUSB_IFNUM_2 0x80000
66 static const struct usb_device_id btusb_table[] = {
67 /* Generic Bluetooth USB device */
68 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
70 /* Generic Bluetooth AMP device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
73 /* Generic Bluetooth USB interface */
74 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
76 /* Apple-specific (Broadcom) devices */
77 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
78 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
80 /* MediaTek MT76x0E */
81 { USB_DEVICE(0x0e8d, 0x763f) },
83 /* Broadcom SoftSailing reporting vendor specific */
84 { USB_DEVICE(0x0a5c, 0x21e1) },
86 /* Apple MacBookPro 7,1 */
87 { USB_DEVICE(0x05ac, 0x8213) },
90 { USB_DEVICE(0x05ac, 0x8215) },
92 /* Apple MacBookPro6,2 */
93 { USB_DEVICE(0x05ac, 0x8218) },
95 /* Apple MacBookAir3,1, MacBookAir3,2 */
96 { USB_DEVICE(0x05ac, 0x821b) },
98 /* Apple MacBookAir4,1 */
99 { USB_DEVICE(0x05ac, 0x821f) },
101 /* Apple MacBookPro8,2 */
102 { USB_DEVICE(0x05ac, 0x821a) },
104 /* Apple MacMini5,1 */
105 { USB_DEVICE(0x05ac, 0x8281) },
107 /* AVM BlueFRITZ! USB v2.0 */
108 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
110 /* Bluetooth Ultraport Module from IBM */
111 { USB_DEVICE(0x04bf, 0x030a) },
113 /* ALPS Modules with non-standard id */
114 { USB_DEVICE(0x044e, 0x3001) },
115 { USB_DEVICE(0x044e, 0x3002) },
117 /* Ericsson with non-standard id */
118 { USB_DEVICE(0x0bdb, 0x1002) },
120 /* Canyon CN-BTU1 with HID interfaces */
121 { USB_DEVICE(0x0c10, 0x0000) },
123 /* Broadcom BCM20702A0 */
124 { USB_DEVICE(0x413c, 0x8197) },
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_DEVICE(0x105b, 0xe065), .driver_info = BTUSB_BCM_PATCHRAM },
132 /* Foxconn - Hon Hai */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
140 /* Broadcom devices with vendor specific id */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
144 /* ASUSTek Computer - Broadcom based */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
148 /* Belkin F8065bf - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
152 /* IMC Networks - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
156 /* Toshiba Corp - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
160 /* Intel Bluetooth USB Bootloader (RAM module) */
161 { USB_DEVICE(0x8087, 0x0a5a),
162 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
164 { } /* Terminating entry */
167 MODULE_DEVICE_TABLE(usb, btusb_table);
169 static const struct usb_device_id blacklist_table[] = {
170 /* CSR BlueCore devices */
171 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
173 /* Broadcom BCM2033 without firmware */
174 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
176 /* Broadcom BCM2045 devices */
177 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
179 /* Atheros 3011 with sflash firmware */
180 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
181 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
182 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
183 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
184 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
188 /* Atheros AR9285 Malbec with sflash firmware */
189 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
191 /* Atheros 3012 with sflash firmware */
192 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
236 /* Atheros AR5BBU12 with sflash firmware */
237 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
239 /* Atheros AR5BBU12 with sflash firmware */
240 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
243 /* QCA ROME chipset */
244 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
245 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
246 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
248 /* Broadcom BCM2035 */
249 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
250 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
251 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
253 /* Broadcom BCM2045 */
254 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* IBM/Lenovo ThinkPad with Broadcom chip */
258 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
261 /* HP laptop with Broadcom chip */
262 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
264 /* Dell laptop with Broadcom chip */
265 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
267 /* Dell Wireless 370 and 410 devices */
268 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
269 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
271 /* Belkin F8T012 and F8T013 devices */
272 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
273 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
275 /* Asus WL-BTD202 device */
276 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
278 /* Kensington Bluetooth USB adapter */
279 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
281 /* RTX Telecom based adapters with buggy SCO support */
282 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
283 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
285 /* CONWISE Technology based adapters with buggy SCO support */
286 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
288 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
289 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
291 /* Digianswer devices */
292 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
293 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
295 /* CSR BlueCore Bluetooth Sniffer */
296 { USB_DEVICE(0x0a12, 0x0002),
297 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
299 /* Frontline ComProbe Bluetooth Sniffer */
300 { USB_DEVICE(0x16d3, 0x0002),
301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
303 /* Marvell Bluetooth devices */
304 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
305 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
307 /* Intel Bluetooth devices */
308 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
309 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
310 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
311 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
313 /* Other Intel Bluetooth devices */
314 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
315 .driver_info = BTUSB_IGNORE },
317 /* Realtek Bluetooth devices */
318 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
319 .driver_info = BTUSB_REALTEK },
321 /* Additional Realtek 8723AE Bluetooth devices */
322 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
325 /* Additional Realtek 8723BE Bluetooth devices */
326 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
327 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
328 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
329 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
330 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
332 /* Additional Realtek 8821AE Bluetooth devices */
333 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
335 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
336 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
337 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
339 /* Silicon Wave based devices */
340 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
342 { } /* Terminating entry */
345 #define BTUSB_MAX_ISOC_FRAMES 10
347 #define BTUSB_INTR_RUNNING 0
348 #define BTUSB_BULK_RUNNING 1
349 #define BTUSB_ISOC_RUNNING 2
350 #define BTUSB_SUSPENDING 3
351 #define BTUSB_DID_ISO_RESUME 4
352 #define BTUSB_BOOTLOADER 5
353 #define BTUSB_DOWNLOADING 6
354 #define BTUSB_FIRMWARE_LOADED 7
355 #define BTUSB_FIRMWARE_FAILED 8
356 #define BTUSB_BOOTING 9
357 #define BTUSB_RESET_RESUME 10
358 #define BTUSB_DIAG_RUNNING 11
361 struct hci_dev *hdev;
362 struct usb_device *udev;
363 struct usb_interface *intf;
364 struct usb_interface *isoc;
365 struct usb_interface *diag;
369 struct work_struct work;
370 struct work_struct waker;
372 struct usb_anchor deferred;
373 struct usb_anchor tx_anchor;
377 struct usb_anchor intr_anchor;
378 struct usb_anchor bulk_anchor;
379 struct usb_anchor isoc_anchor;
380 struct usb_anchor diag_anchor;
383 struct sk_buff *evt_skb;
384 struct sk_buff *acl_skb;
385 struct sk_buff *sco_skb;
387 struct usb_endpoint_descriptor *intr_ep;
388 struct usb_endpoint_descriptor *bulk_tx_ep;
389 struct usb_endpoint_descriptor *bulk_rx_ep;
390 struct usb_endpoint_descriptor *isoc_tx_ep;
391 struct usb_endpoint_descriptor *isoc_rx_ep;
392 struct usb_endpoint_descriptor *diag_tx_ep;
393 struct usb_endpoint_descriptor *diag_rx_ep;
398 unsigned int sco_num;
402 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
403 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
405 int (*setup_on_usb)(struct hci_dev *hdev);
408 static inline void btusb_free_frags(struct btusb_data *data)
412 spin_lock_irqsave(&data->rxlock, flags);
414 kfree_skb(data->evt_skb);
415 data->evt_skb = NULL;
417 kfree_skb(data->acl_skb);
418 data->acl_skb = NULL;
420 kfree_skb(data->sco_skb);
421 data->sco_skb = NULL;
423 spin_unlock_irqrestore(&data->rxlock, flags);
426 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
431 spin_lock(&data->rxlock);
438 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
444 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
445 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
448 len = min_t(uint, bt_cb(skb)->expect, count);
449 memcpy(skb_put(skb, len), buffer, len);
453 bt_cb(skb)->expect -= len;
455 if (skb->len == HCI_EVENT_HDR_SIZE) {
456 /* Complete event header */
457 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
459 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
468 if (bt_cb(skb)->expect == 0) {
470 data->recv_event(data->hdev, skb);
476 spin_unlock(&data->rxlock);
481 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
486 spin_lock(&data->rxlock);
493 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
499 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
500 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
503 len = min_t(uint, bt_cb(skb)->expect, count);
504 memcpy(skb_put(skb, len), buffer, len);
508 bt_cb(skb)->expect -= len;
510 if (skb->len == HCI_ACL_HDR_SIZE) {
511 __le16 dlen = hci_acl_hdr(skb)->dlen;
513 /* Complete ACL header */
514 bt_cb(skb)->expect = __le16_to_cpu(dlen);
516 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
525 if (bt_cb(skb)->expect == 0) {
527 hci_recv_frame(data->hdev, skb);
533 spin_unlock(&data->rxlock);
538 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
543 spin_lock(&data->rxlock);
550 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
556 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
557 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
560 len = min_t(uint, bt_cb(skb)->expect, count);
561 memcpy(skb_put(skb, len), buffer, len);
565 bt_cb(skb)->expect -= len;
567 if (skb->len == HCI_SCO_HDR_SIZE) {
568 /* Complete SCO header */
569 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
571 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
580 if (bt_cb(skb)->expect == 0) {
582 hci_recv_frame(data->hdev, skb);
588 spin_unlock(&data->rxlock);
593 static void btusb_intr_complete(struct urb *urb)
595 struct hci_dev *hdev = urb->context;
596 struct btusb_data *data = hci_get_drvdata(hdev);
599 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
602 if (!test_bit(HCI_RUNNING, &hdev->flags))
605 if (urb->status == 0) {
606 hdev->stat.byte_rx += urb->actual_length;
608 if (btusb_recv_intr(data, urb->transfer_buffer,
609 urb->actual_length) < 0) {
610 BT_ERR("%s corrupted event packet", hdev->name);
613 } else if (urb->status == -ENOENT) {
614 /* Avoid suspend failed when usb_kill_urb */
618 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
621 usb_mark_last_busy(data->udev);
622 usb_anchor_urb(urb, &data->intr_anchor);
624 err = usb_submit_urb(urb, GFP_ATOMIC);
626 /* -EPERM: urb is being killed;
627 * -ENODEV: device got disconnected */
628 if (err != -EPERM && err != -ENODEV)
629 BT_ERR("%s urb %p failed to resubmit (%d)",
630 hdev->name, urb, -err);
631 usb_unanchor_urb(urb);
635 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
637 struct btusb_data *data = hci_get_drvdata(hdev);
643 BT_DBG("%s", hdev->name);
648 urb = usb_alloc_urb(0, mem_flags);
652 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
654 buf = kmalloc(size, mem_flags);
660 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
662 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
663 btusb_intr_complete, hdev, data->intr_ep->bInterval);
665 urb->transfer_flags |= URB_FREE_BUFFER;
667 usb_anchor_urb(urb, &data->intr_anchor);
669 err = usb_submit_urb(urb, mem_flags);
671 if (err != -EPERM && err != -ENODEV)
672 BT_ERR("%s urb %p submission failed (%d)",
673 hdev->name, urb, -err);
674 usb_unanchor_urb(urb);
682 static void btusb_bulk_complete(struct urb *urb)
684 struct hci_dev *hdev = urb->context;
685 struct btusb_data *data = hci_get_drvdata(hdev);
688 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
691 if (!test_bit(HCI_RUNNING, &hdev->flags))
694 if (urb->status == 0) {
695 hdev->stat.byte_rx += urb->actual_length;
697 if (data->recv_bulk(data, urb->transfer_buffer,
698 urb->actual_length) < 0) {
699 BT_ERR("%s corrupted ACL packet", hdev->name);
702 } else if (urb->status == -ENOENT) {
703 /* Avoid suspend failed when usb_kill_urb */
707 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
710 usb_anchor_urb(urb, &data->bulk_anchor);
711 usb_mark_last_busy(data->udev);
713 err = usb_submit_urb(urb, GFP_ATOMIC);
715 /* -EPERM: urb is being killed;
716 * -ENODEV: device got disconnected */
717 if (err != -EPERM && err != -ENODEV)
718 BT_ERR("%s urb %p failed to resubmit (%d)",
719 hdev->name, urb, -err);
720 usb_unanchor_urb(urb);
724 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
726 struct btusb_data *data = hci_get_drvdata(hdev);
730 int err, size = HCI_MAX_FRAME_SIZE;
732 BT_DBG("%s", hdev->name);
734 if (!data->bulk_rx_ep)
737 urb = usb_alloc_urb(0, mem_flags);
741 buf = kmalloc(size, mem_flags);
747 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
749 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
750 btusb_bulk_complete, hdev);
752 urb->transfer_flags |= URB_FREE_BUFFER;
754 usb_mark_last_busy(data->udev);
755 usb_anchor_urb(urb, &data->bulk_anchor);
757 err = usb_submit_urb(urb, mem_flags);
759 if (err != -EPERM && err != -ENODEV)
760 BT_ERR("%s urb %p submission failed (%d)",
761 hdev->name, urb, -err);
762 usb_unanchor_urb(urb);
770 static void btusb_isoc_complete(struct urb *urb)
772 struct hci_dev *hdev = urb->context;
773 struct btusb_data *data = hci_get_drvdata(hdev);
776 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
779 if (!test_bit(HCI_RUNNING, &hdev->flags))
782 if (urb->status == 0) {
783 for (i = 0; i < urb->number_of_packets; i++) {
784 unsigned int offset = urb->iso_frame_desc[i].offset;
785 unsigned int length = urb->iso_frame_desc[i].actual_length;
787 if (urb->iso_frame_desc[i].status)
790 hdev->stat.byte_rx += length;
792 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
794 BT_ERR("%s corrupted SCO packet", hdev->name);
798 } else if (urb->status == -ENOENT) {
799 /* Avoid suspend failed when usb_kill_urb */
803 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
806 usb_anchor_urb(urb, &data->isoc_anchor);
808 err = usb_submit_urb(urb, GFP_ATOMIC);
810 /* -EPERM: urb is being killed;
811 * -ENODEV: device got disconnected */
812 if (err != -EPERM && err != -ENODEV)
813 BT_ERR("%s urb %p failed to resubmit (%d)",
814 hdev->name, urb, -err);
815 usb_unanchor_urb(urb);
819 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
823 BT_DBG("len %d mtu %d", len, mtu);
825 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
826 i++, offset += mtu, len -= mtu) {
827 urb->iso_frame_desc[i].offset = offset;
828 urb->iso_frame_desc[i].length = mtu;
831 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
832 urb->iso_frame_desc[i].offset = offset;
833 urb->iso_frame_desc[i].length = len;
837 urb->number_of_packets = i;
840 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
842 struct btusb_data *data = hci_get_drvdata(hdev);
848 BT_DBG("%s", hdev->name);
850 if (!data->isoc_rx_ep)
853 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
857 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
858 BTUSB_MAX_ISOC_FRAMES;
860 buf = kmalloc(size, mem_flags);
866 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
868 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
869 hdev, data->isoc_rx_ep->bInterval);
871 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
873 __fill_isoc_descriptor(urb, size,
874 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
876 usb_anchor_urb(urb, &data->isoc_anchor);
878 err = usb_submit_urb(urb, mem_flags);
880 if (err != -EPERM && err != -ENODEV)
881 BT_ERR("%s urb %p submission failed (%d)",
882 hdev->name, urb, -err);
883 usb_unanchor_urb(urb);
891 static void btusb_diag_complete(struct urb *urb)
893 struct hci_dev *hdev = urb->context;
894 struct btusb_data *data = hci_get_drvdata(hdev);
897 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
900 if (urb->status == 0) {
903 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
905 memcpy(skb_put(skb, urb->actual_length),
906 urb->transfer_buffer, urb->actual_length);
907 hci_recv_diag(hdev, skb);
909 } else if (urb->status == -ENOENT) {
910 /* Avoid suspend failed when usb_kill_urb */
914 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
917 usb_anchor_urb(urb, &data->diag_anchor);
918 usb_mark_last_busy(data->udev);
920 err = usb_submit_urb(urb, GFP_ATOMIC);
922 /* -EPERM: urb is being killed;
923 * -ENODEV: device got disconnected */
924 if (err != -EPERM && err != -ENODEV)
925 BT_ERR("%s urb %p failed to resubmit (%d)",
926 hdev->name, urb, -err);
927 usb_unanchor_urb(urb);
931 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
933 struct btusb_data *data = hci_get_drvdata(hdev);
937 int err, size = HCI_MAX_FRAME_SIZE;
939 BT_DBG("%s", hdev->name);
941 if (!data->diag_rx_ep)
944 urb = usb_alloc_urb(0, mem_flags);
948 buf = kmalloc(size, mem_flags);
954 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
956 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
957 btusb_diag_complete, hdev);
959 urb->transfer_flags |= URB_FREE_BUFFER;
961 usb_mark_last_busy(data->udev);
962 usb_anchor_urb(urb, &data->diag_anchor);
964 err = usb_submit_urb(urb, mem_flags);
966 if (err != -EPERM && err != -ENODEV)
967 BT_ERR("%s urb %p submission failed (%d)",
968 hdev->name, urb, -err);
969 usb_unanchor_urb(urb);
977 static void btusb_tx_complete(struct urb *urb)
979 struct sk_buff *skb = urb->context;
980 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
981 struct btusb_data *data = hci_get_drvdata(hdev);
983 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
986 if (!test_bit(HCI_RUNNING, &hdev->flags))
990 hdev->stat.byte_tx += urb->transfer_buffer_length;
995 spin_lock(&data->txlock);
996 data->tx_in_flight--;
997 spin_unlock(&data->txlock);
999 kfree(urb->setup_packet);
1004 static void btusb_isoc_tx_complete(struct urb *urb)
1006 struct sk_buff *skb = urb->context;
1007 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1009 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1010 urb->actual_length);
1012 if (!test_bit(HCI_RUNNING, &hdev->flags))
1016 hdev->stat.byte_tx += urb->transfer_buffer_length;
1018 hdev->stat.err_tx++;
1021 kfree(urb->setup_packet);
1026 static int btusb_open(struct hci_dev *hdev)
1028 struct btusb_data *data = hci_get_drvdata(hdev);
1031 BT_DBG("%s", hdev->name);
1033 /* Patching USB firmware files prior to starting any URBs of HCI path
1034 * It is more safe to use USB bulk channel for downloading USB patch
1036 if (data->setup_on_usb) {
1037 err = data->setup_on_usb(hdev);
1042 err = usb_autopm_get_interface(data->intf);
1046 data->intf->needs_remote_wakeup = 1;
1048 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1051 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1055 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1057 usb_kill_anchored_urbs(&data->intr_anchor);
1061 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1062 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1065 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1066 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1070 usb_autopm_put_interface(data->intf);
1074 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1075 usb_autopm_put_interface(data->intf);
1079 static void btusb_stop_traffic(struct btusb_data *data)
1081 usb_kill_anchored_urbs(&data->intr_anchor);
1082 usb_kill_anchored_urbs(&data->bulk_anchor);
1083 usb_kill_anchored_urbs(&data->isoc_anchor);
1084 usb_kill_anchored_urbs(&data->diag_anchor);
1087 static int btusb_close(struct hci_dev *hdev)
1089 struct btusb_data *data = hci_get_drvdata(hdev);
1092 BT_DBG("%s", hdev->name);
1094 cancel_work_sync(&data->work);
1095 cancel_work_sync(&data->waker);
1097 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1098 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1099 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1100 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1102 btusb_stop_traffic(data);
1103 btusb_free_frags(data);
1105 err = usb_autopm_get_interface(data->intf);
1109 data->intf->needs_remote_wakeup = 0;
1110 usb_autopm_put_interface(data->intf);
1113 usb_scuttle_anchored_urbs(&data->deferred);
1117 static int btusb_flush(struct hci_dev *hdev)
1119 struct btusb_data *data = hci_get_drvdata(hdev);
1121 BT_DBG("%s", hdev->name);
1123 usb_kill_anchored_urbs(&data->tx_anchor);
1124 btusb_free_frags(data);
1129 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1131 struct btusb_data *data = hci_get_drvdata(hdev);
1132 struct usb_ctrlrequest *dr;
1136 urb = usb_alloc_urb(0, GFP_KERNEL);
1138 return ERR_PTR(-ENOMEM);
1140 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1143 return ERR_PTR(-ENOMEM);
1146 dr->bRequestType = data->cmdreq_type;
1147 dr->bRequest = data->cmdreq;
1150 dr->wLength = __cpu_to_le16(skb->len);
1152 pipe = usb_sndctrlpipe(data->udev, 0x00);
1154 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1155 skb->data, skb->len, btusb_tx_complete, skb);
1157 skb->dev = (void *)hdev;
1162 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1164 struct btusb_data *data = hci_get_drvdata(hdev);
1168 if (!data->bulk_tx_ep)
1169 return ERR_PTR(-ENODEV);
1171 urb = usb_alloc_urb(0, GFP_KERNEL);
1173 return ERR_PTR(-ENOMEM);
1175 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1177 usb_fill_bulk_urb(urb, data->udev, pipe,
1178 skb->data, skb->len, btusb_tx_complete, skb);
1180 skb->dev = (void *)hdev;
1185 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1187 struct btusb_data *data = hci_get_drvdata(hdev);
1191 if (!data->isoc_tx_ep)
1192 return ERR_PTR(-ENODEV);
1194 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1196 return ERR_PTR(-ENOMEM);
1198 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1200 usb_fill_int_urb(urb, data->udev, pipe,
1201 skb->data, skb->len, btusb_isoc_tx_complete,
1202 skb, data->isoc_tx_ep->bInterval);
1204 urb->transfer_flags = URB_ISO_ASAP;
1206 __fill_isoc_descriptor(urb, skb->len,
1207 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1209 skb->dev = (void *)hdev;
1214 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1216 struct btusb_data *data = hci_get_drvdata(hdev);
1219 usb_anchor_urb(urb, &data->tx_anchor);
1221 err = usb_submit_urb(urb, GFP_KERNEL);
1223 if (err != -EPERM && err != -ENODEV)
1224 BT_ERR("%s urb %p submission failed (%d)",
1225 hdev->name, urb, -err);
1226 kfree(urb->setup_packet);
1227 usb_unanchor_urb(urb);
1229 usb_mark_last_busy(data->udev);
1236 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1238 struct btusb_data *data = hci_get_drvdata(hdev);
1239 unsigned long flags;
1242 spin_lock_irqsave(&data->txlock, flags);
1243 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1245 data->tx_in_flight++;
1246 spin_unlock_irqrestore(&data->txlock, flags);
1249 return submit_tx_urb(hdev, urb);
1251 usb_anchor_urb(urb, &data->deferred);
1252 schedule_work(&data->waker);
1258 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1262 BT_DBG("%s", hdev->name);
1264 switch (bt_cb(skb)->pkt_type) {
1265 case HCI_COMMAND_PKT:
1266 urb = alloc_ctrl_urb(hdev, skb);
1268 return PTR_ERR(urb);
1270 hdev->stat.cmd_tx++;
1271 return submit_or_queue_tx_urb(hdev, urb);
1273 case HCI_ACLDATA_PKT:
1274 urb = alloc_bulk_urb(hdev, skb);
1276 return PTR_ERR(urb);
1278 hdev->stat.acl_tx++;
1279 return submit_or_queue_tx_urb(hdev, urb);
1281 case HCI_SCODATA_PKT:
1282 if (hci_conn_num(hdev, SCO_LINK) < 1)
1285 urb = alloc_isoc_urb(hdev, skb);
1287 return PTR_ERR(urb);
1289 hdev->stat.sco_tx++;
1290 return submit_tx_urb(hdev, urb);
1296 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1298 struct btusb_data *data = hci_get_drvdata(hdev);
1300 BT_DBG("%s evt %d", hdev->name, evt);
1302 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1303 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1304 schedule_work(&data->work);
1308 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1310 struct btusb_data *data = hci_get_drvdata(hdev);
1311 struct usb_interface *intf = data->isoc;
1312 struct usb_endpoint_descriptor *ep_desc;
1318 err = usb_set_interface(data->udev, 1, altsetting);
1320 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1324 data->isoc_altsetting = altsetting;
1326 data->isoc_tx_ep = NULL;
1327 data->isoc_rx_ep = NULL;
1329 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1330 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1332 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1333 data->isoc_tx_ep = ep_desc;
1337 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1338 data->isoc_rx_ep = ep_desc;
1343 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1344 BT_ERR("%s invalid SCO descriptors", hdev->name);
1351 static void btusb_work(struct work_struct *work)
1353 struct btusb_data *data = container_of(work, struct btusb_data, work);
1354 struct hci_dev *hdev = data->hdev;
1358 if (data->sco_num > 0) {
1359 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1360 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1362 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1363 usb_kill_anchored_urbs(&data->isoc_anchor);
1367 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1370 if (hdev->voice_setting & 0x0020) {
1371 static const int alts[3] = { 2, 4, 5 };
1373 new_alts = alts[data->sco_num - 1];
1375 new_alts = data->sco_num;
1378 if (data->isoc_altsetting != new_alts) {
1379 unsigned long flags;
1381 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1382 usb_kill_anchored_urbs(&data->isoc_anchor);
1384 /* When isochronous alternate setting needs to be
1385 * changed, because SCO connection has been added
1386 * or removed, a packet fragment may be left in the
1387 * reassembling state. This could lead to wrongly
1388 * assembled fragments.
1390 * Clear outstanding fragment when selecting a new
1391 * alternate setting.
1393 spin_lock_irqsave(&data->rxlock, flags);
1394 kfree_skb(data->sco_skb);
1395 data->sco_skb = NULL;
1396 spin_unlock_irqrestore(&data->rxlock, flags);
1398 if (__set_isoc_interface(hdev, new_alts) < 0)
1402 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1403 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1404 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1406 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1409 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1410 usb_kill_anchored_urbs(&data->isoc_anchor);
1412 __set_isoc_interface(hdev, 0);
1413 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1414 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1418 static void btusb_waker(struct work_struct *work)
1420 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1423 err = usb_autopm_get_interface(data->intf);
1427 usb_autopm_put_interface(data->intf);
1430 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1432 struct sk_buff *skb;
1435 BT_DBG("%s", hdev->name);
1437 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1439 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1446 static int btusb_setup_csr(struct hci_dev *hdev)
1448 struct hci_rp_read_local_version *rp;
1449 struct sk_buff *skb;
1451 BT_DBG("%s", hdev->name);
1453 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1456 int err = PTR_ERR(skb);
1457 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1461 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1462 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1467 rp = (struct hci_rp_read_local_version *)skb->data;
1469 /* Detect controllers which aren't real CSR ones. */
1470 if (le16_to_cpu(rp->manufacturer) != 10 ||
1471 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1472 /* Clear the reset quirk since this is not an actual
1473 * early Bluetooth 1.1 device from CSR.
1475 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1477 /* These fake CSR controllers have all a broken
1478 * stored link key handling and so just disable it.
1480 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1488 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1489 struct intel_version *ver)
1491 const struct firmware *fw;
1495 snprintf(fwname, sizeof(fwname),
1496 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1497 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1498 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1499 ver->fw_build_ww, ver->fw_build_yy);
1501 ret = request_firmware(&fw, fwname, &hdev->dev);
1503 if (ret == -EINVAL) {
1504 BT_ERR("%s Intel firmware file request failed (%d)",
1509 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1510 hdev->name, fwname, ret);
1512 /* If the correct firmware patch file is not found, use the
1513 * default firmware patch file instead
1515 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1516 ver->hw_platform, ver->hw_variant);
1517 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1518 BT_ERR("%s failed to open default Intel fw file: %s",
1519 hdev->name, fwname);
1524 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1529 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1530 const struct firmware *fw,
1531 const u8 **fw_ptr, int *disable_patch)
1533 struct sk_buff *skb;
1534 struct hci_command_hdr *cmd;
1535 const u8 *cmd_param;
1536 struct hci_event_hdr *evt = NULL;
1537 const u8 *evt_param = NULL;
1538 int remain = fw->size - (*fw_ptr - fw->data);
1540 /* The first byte indicates the types of the patch command or event.
1541 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1542 * in the current firmware buffer doesn't start with 0x01 or
1543 * the size of remain buffer is smaller than HCI command header,
1544 * the firmware file is corrupted and it should stop the patching
1547 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1548 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1554 cmd = (struct hci_command_hdr *)(*fw_ptr);
1555 *fw_ptr += sizeof(*cmd);
1556 remain -= sizeof(*cmd);
1558 /* Ensure that the remain firmware data is long enough than the length
1559 * of command parameter. If not, the firmware file is corrupted.
1561 if (remain < cmd->plen) {
1562 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1566 /* If there is a command that loads a patch in the firmware
1567 * file, then enable the patch upon success, otherwise just
1568 * disable the manufacturer mode, for example patch activation
1569 * is not required when the default firmware patch file is used
1570 * because there are no patch data to load.
1572 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1575 cmd_param = *fw_ptr;
1576 *fw_ptr += cmd->plen;
1577 remain -= cmd->plen;
1579 /* This reads the expected events when the above command is sent to the
1580 * device. Some vendor commands expects more than one events, for
1581 * example command status event followed by vendor specific event.
1582 * For this case, it only keeps the last expected event. so the command
1583 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1584 * last expected event.
1586 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1590 evt = (struct hci_event_hdr *)(*fw_ptr);
1591 *fw_ptr += sizeof(*evt);
1592 remain -= sizeof(*evt);
1594 if (remain < evt->plen) {
1595 BT_ERR("%s Intel fw corrupted: invalid evt len",
1600 evt_param = *fw_ptr;
1601 *fw_ptr += evt->plen;
1602 remain -= evt->plen;
1605 /* Every HCI commands in the firmware file has its correspond event.
1606 * If event is not found or remain is smaller than zero, the firmware
1607 * file is corrupted.
1609 if (!evt || !evt_param || remain < 0) {
1610 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1614 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1615 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1617 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1618 hdev->name, cmd->opcode, PTR_ERR(skb));
1619 return PTR_ERR(skb);
1622 /* It ensures that the returned event matches the event data read from
1623 * the firmware file. At fist, it checks the length and then
1624 * the contents of the event.
1626 if (skb->len != evt->plen) {
1627 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1628 le16_to_cpu(cmd->opcode));
1633 if (memcmp(skb->data, evt_param, evt->plen)) {
1634 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1635 hdev->name, le16_to_cpu(cmd->opcode));
1644 static int btusb_setup_intel(struct hci_dev *hdev)
1646 struct sk_buff *skb;
1647 const struct firmware *fw;
1650 struct intel_version *ver;
1652 const u8 mfg_enable[] = { 0x01, 0x00 };
1653 const u8 mfg_disable[] = { 0x00, 0x00 };
1654 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1655 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1657 BT_DBG("%s", hdev->name);
1659 /* The controller has a bug with the first HCI command sent to it
1660 * returning number of completed commands as zero. This would stall the
1661 * command processing in the Bluetooth core.
1663 * As a workaround, send HCI Reset command first which will reset the
1664 * number of completed commands and allow normal command processing
1667 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1669 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1670 hdev->name, PTR_ERR(skb));
1671 return PTR_ERR(skb);
1675 /* Read Intel specific controller version first to allow selection of
1676 * which firmware file to load.
1678 * The returned information are hardware variant and revision plus
1679 * firmware variant, revision and build number.
1681 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1683 BT_ERR("%s reading Intel fw version command failed (%ld)",
1684 hdev->name, PTR_ERR(skb));
1685 return PTR_ERR(skb);
1688 if (skb->len != sizeof(*ver)) {
1689 BT_ERR("%s Intel version event length mismatch", hdev->name);
1694 ver = (struct intel_version *)skb->data;
1696 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1697 hdev->name, ver->hw_platform, ver->hw_variant,
1698 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1699 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1702 /* fw_patch_num indicates the version of patch the device currently
1703 * have. If there is no patch data in the device, it is always 0x00.
1704 * So, if it is other than 0x00, no need to patch the device again.
1706 if (ver->fw_patch_num) {
1707 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1708 hdev->name, ver->fw_patch_num);
1713 /* Opens the firmware patch file based on the firmware version read
1714 * from the controller. If it fails to open the matching firmware
1715 * patch file, it tries to open the default firmware patch file.
1716 * If no patch file is found, allow the device to operate without
1719 fw = btusb_setup_intel_get_fw(hdev, ver);
1728 /* This Intel specific command enables the manufacturer mode of the
1731 * Only while this mode is enabled, the driver can download the
1732 * firmware patch data and configuration parameters.
1734 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1736 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1737 hdev->name, PTR_ERR(skb));
1738 release_firmware(fw);
1739 return PTR_ERR(skb);
1746 /* The firmware data file consists of list of Intel specific HCI
1747 * commands and its expected events. The first byte indicates the
1748 * type of the message, either HCI command or HCI event.
1750 * It reads the command and its expected event from the firmware file,
1751 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1752 * the returned event is compared with the event read from the firmware
1753 * file and it will continue until all the messages are downloaded to
1756 * Once the firmware patching is completed successfully,
1757 * the manufacturer mode is disabled with reset and activating the
1760 * If the firmware patching fails, the manufacturer mode is
1761 * disabled with reset and deactivating the patch.
1763 * If the default patch file is used, no reset is done when disabling
1766 while (fw->size > fw_ptr - fw->data) {
1769 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1772 goto exit_mfg_deactivate;
1775 release_firmware(fw);
1778 goto exit_mfg_disable;
1780 /* Patching completed successfully and disable the manufacturer mode
1781 * with reset and activate the downloaded firmware patches.
1783 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1784 mfg_reset_activate, HCI_INIT_TIMEOUT);
1786 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1787 hdev->name, PTR_ERR(skb));
1788 return PTR_ERR(skb);
1792 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1798 /* Disable the manufacturer mode without reset */
1799 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1802 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1803 hdev->name, PTR_ERR(skb));
1804 return PTR_ERR(skb);
1808 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1812 exit_mfg_deactivate:
1813 release_firmware(fw);
1815 /* Patching failed. Disable the manufacturer mode with reset and
1816 * deactivate the downloaded firmware patches.
1818 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1819 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1821 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1822 hdev->name, PTR_ERR(skb));
1823 return PTR_ERR(skb);
1827 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1831 /* Set the event mask for Intel specific vendor events. This enables
1832 * a few extra events that are useful during general operation.
1834 btintel_set_event_mask_mfg(hdev, false);
1836 btintel_check_bdaddr(hdev);
1840 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1842 struct sk_buff *skb;
1843 struct hci_event_hdr *hdr;
1844 struct hci_ev_cmd_complete *evt;
1846 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1850 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1851 hdr->evt = HCI_EV_CMD_COMPLETE;
1852 hdr->plen = sizeof(*evt) + 1;
1854 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1856 evt->opcode = cpu_to_le16(opcode);
1858 *skb_put(skb, 1) = 0x00;
1860 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1862 return hci_recv_frame(hdev, skb);
1865 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1868 /* When the device is in bootloader mode, then it can send
1869 * events via the bulk endpoint. These events are treated the
1870 * same way as the ones received from the interrupt endpoint.
1872 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1873 return btusb_recv_intr(data, buffer, count);
1875 return btusb_recv_bulk(data, buffer, count);
1878 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1881 const struct intel_bootup *evt = ptr;
1883 if (len != sizeof(*evt))
1886 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1887 smp_mb__after_atomic();
1888 wake_up_bit(&data->flags, BTUSB_BOOTING);
1892 static void btusb_intel_secure_send_result(struct btusb_data *data,
1893 const void *ptr, unsigned int len)
1895 const struct intel_secure_send_result *evt = ptr;
1897 if (len != sizeof(*evt))
1901 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1903 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1904 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1905 smp_mb__after_atomic();
1906 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1910 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1912 struct btusb_data *data = hci_get_drvdata(hdev);
1914 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1915 struct hci_event_hdr *hdr = (void *)skb->data;
1917 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1919 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1920 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1922 switch (skb->data[2]) {
1924 /* When switching to the operational firmware
1925 * the device sends a vendor specific event
1926 * indicating that the bootup completed.
1928 btusb_intel_bootup(data, ptr, len);
1931 /* When the firmware loading completes the
1932 * device sends out a vendor specific event
1933 * indicating the result of the firmware
1936 btusb_intel_secure_send_result(data, ptr, len);
1942 return hci_recv_frame(hdev, skb);
1945 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1947 struct btusb_data *data = hci_get_drvdata(hdev);
1950 BT_DBG("%s", hdev->name);
1952 switch (bt_cb(skb)->pkt_type) {
1953 case HCI_COMMAND_PKT:
1954 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1955 struct hci_command_hdr *cmd = (void *)skb->data;
1956 __u16 opcode = le16_to_cpu(cmd->opcode);
1958 /* When in bootloader mode and the command 0xfc09
1959 * is received, it needs to be send down the
1960 * bulk endpoint. So allocate a bulk URB instead.
1962 if (opcode == 0xfc09)
1963 urb = alloc_bulk_urb(hdev, skb);
1965 urb = alloc_ctrl_urb(hdev, skb);
1967 /* When the 0xfc01 command is issued to boot into
1968 * the operational firmware, it will actually not
1969 * send a command complete event. To keep the flow
1970 * control working inject that event here.
1972 if (opcode == 0xfc01)
1973 inject_cmd_complete(hdev, opcode);
1975 urb = alloc_ctrl_urb(hdev, skb);
1978 return PTR_ERR(urb);
1980 hdev->stat.cmd_tx++;
1981 return submit_or_queue_tx_urb(hdev, urb);
1983 case HCI_ACLDATA_PKT:
1984 urb = alloc_bulk_urb(hdev, skb);
1986 return PTR_ERR(urb);
1988 hdev->stat.acl_tx++;
1989 return submit_or_queue_tx_urb(hdev, urb);
1991 case HCI_SCODATA_PKT:
1992 if (hci_conn_num(hdev, SCO_LINK) < 1)
1995 urb = alloc_isoc_urb(hdev, skb);
1997 return PTR_ERR(urb);
1999 hdev->stat.sco_tx++;
2000 return submit_tx_urb(hdev, urb);
2006 static int btusb_setup_intel_new(struct hci_dev *hdev)
2008 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2009 0x00, 0x08, 0x04, 0x00 };
2010 struct btusb_data *data = hci_get_drvdata(hdev);
2011 struct sk_buff *skb;
2012 struct intel_version *ver;
2013 struct intel_boot_params *params;
2014 const struct firmware *fw;
2018 ktime_t calltime, delta, rettime;
2019 unsigned long long duration;
2022 BT_DBG("%s", hdev->name);
2024 calltime = ktime_get();
2026 /* Read the Intel version information to determine if the device
2027 * is in bootloader mode or if it already has operational firmware
2030 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2032 BT_ERR("%s: Reading Intel version information failed (%ld)",
2033 hdev->name, PTR_ERR(skb));
2034 return PTR_ERR(skb);
2037 if (skb->len != sizeof(*ver)) {
2038 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2043 ver = (struct intel_version *)skb->data;
2045 /* The hardware platform number has a fixed value of 0x37 and
2046 * for now only accept this single value.
2048 if (ver->hw_platform != 0x37) {
2049 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2050 hdev->name, ver->hw_platform);
2055 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2056 * supported by this firmware loading method. This check has been
2057 * put in place to ensure correct forward compatibility options
2058 * when newer hardware variants come along.
2060 if (ver->hw_variant != 0x0b) {
2061 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2062 hdev->name, ver->hw_variant);
2067 btintel_version_info(hdev, ver);
2069 /* The firmware variant determines if the device is in bootloader
2070 * mode or is running operational firmware. The value 0x06 identifies
2071 * the bootloader and the value 0x23 identifies the operational
2074 * When the operational firmware is already present, then only
2075 * the check for valid Bluetooth device address is needed. This
2076 * determines if the device will be added as configured or
2077 * unconfigured controller.
2079 * It is not possible to use the Secure Boot Parameters in this
2080 * case since that command is only available in bootloader mode.
2082 if (ver->fw_variant == 0x23) {
2084 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2085 btintel_check_bdaddr(hdev);
2089 /* If the device is not in bootloader mode, then the only possible
2090 * choice is to return an error and abort the device initialization.
2092 if (ver->fw_variant != 0x06) {
2093 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2094 hdev->name, ver->fw_variant);
2101 /* Read the secure boot parameters to identify the operating
2102 * details of the bootloader.
2104 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2106 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2107 hdev->name, PTR_ERR(skb));
2108 return PTR_ERR(skb);
2111 if (skb->len != sizeof(*params)) {
2112 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2117 params = (struct intel_boot_params *)skb->data;
2119 BT_INFO("%s: Device revision is %u", hdev->name,
2120 le16_to_cpu(params->dev_revid));
2122 BT_INFO("%s: Secure boot is %s", hdev->name,
2123 params->secure_boot ? "enabled" : "disabled");
2125 BT_INFO("%s: OTP lock is %s", hdev->name,
2126 params->otp_lock ? "enabled" : "disabled");
2128 BT_INFO("%s: API lock is %s", hdev->name,
2129 params->api_lock ? "enabled" : "disabled");
2131 BT_INFO("%s: Debug lock is %s", hdev->name,
2132 params->debug_lock ? "enabled" : "disabled");
2134 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2135 params->min_fw_build_nn, params->min_fw_build_cw,
2136 2000 + params->min_fw_build_yy);
2138 /* It is required that every single firmware fragment is acknowledged
2139 * with a command complete event. If the boot parameters indicate
2140 * that this bootloader does not send them, then abort the setup.
2142 if (params->limited_cce != 0x00) {
2143 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2144 hdev->name, params->limited_cce);
2149 /* If the OTP has no valid Bluetooth device address, then there will
2150 * also be no valid address for the operational firmware.
2152 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2153 BT_INFO("%s: No device address configured", hdev->name);
2154 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2157 /* With this Intel bootloader only the hardware variant and device
2158 * revision information are used to select the right firmware.
2160 * Currently this bootloader support is limited to hardware variant
2161 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2163 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2164 le16_to_cpu(params->dev_revid));
2166 err = request_firmware(&fw, fwname, &hdev->dev);
2168 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2174 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2176 /* Save the DDC file name for later use to apply once the firmware
2177 * downloading is done.
2179 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2180 le16_to_cpu(params->dev_revid));
2184 if (fw->size < 644) {
2185 BT_ERR("%s: Invalid size of firmware file (%zu)",
2186 hdev->name, fw->size);
2191 set_bit(BTUSB_DOWNLOADING, &data->flags);
2193 /* Start the firmware download transaction with the Init fragment
2194 * represented by the 128 bytes of CSS header.
2196 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2198 BT_ERR("%s: Failed to send firmware header (%d)",
2203 /* Send the 256 bytes of public key information from the firmware
2204 * as the PKey fragment.
2206 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2208 BT_ERR("%s: Failed to send firmware public key (%d)",
2213 /* Send the 256 bytes of signature information from the firmware
2214 * as the Sign fragment.
2216 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2218 BT_ERR("%s: Failed to send firmware signature (%d)",
2223 fw_ptr = fw->data + 644;
2226 while (fw_ptr - fw->data < fw->size) {
2227 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2229 frag_len += sizeof(*cmd) + cmd->plen;
2231 /* The parameter length of the secure send command requires
2232 * a 4 byte alignment. It happens so that the firmware file
2233 * contains proper Intel_NOP commands to align the fragments
2236 * Send set of commands with 4 byte alignment from the
2237 * firmware data buffer as a single Data fragement.
2239 if (!(frag_len % 4)) {
2240 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2242 BT_ERR("%s: Failed to send firmware data (%d)",
2252 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2254 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2256 /* Before switching the device into operational mode and with that
2257 * booting the loaded firmware, wait for the bootloader notification
2258 * that all fragments have been successfully received.
2260 * When the event processing receives the notification, then the
2261 * BTUSB_DOWNLOADING flag will be cleared.
2263 * The firmware loading should not take longer than 5 seconds
2264 * and thus just timeout if that happens and fail the setup
2267 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2269 msecs_to_jiffies(5000));
2271 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2277 BT_ERR("%s: Firmware loading timeout", hdev->name);
2282 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2283 BT_ERR("%s: Firmware loading failed", hdev->name);
2288 rettime = ktime_get();
2289 delta = ktime_sub(rettime, calltime);
2290 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2292 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2295 release_firmware(fw);
2300 calltime = ktime_get();
2302 set_bit(BTUSB_BOOTING, &data->flags);
2304 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2307 return PTR_ERR(skb);
2311 /* The bootloader will not indicate when the device is ready. This
2312 * is done by the operational firmware sending bootup notification.
2314 * Booting into operational firmware should not take longer than
2315 * 1 second. However if that happens, then just fail the setup
2316 * since something went wrong.
2318 BT_INFO("%s: Waiting for device to boot", hdev->name);
2320 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2322 msecs_to_jiffies(1000));
2325 BT_ERR("%s: Device boot interrupted", hdev->name);
2330 BT_ERR("%s: Device boot timeout", hdev->name);
2334 rettime = ktime_get();
2335 delta = ktime_sub(rettime, calltime);
2336 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2338 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2340 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2342 /* Once the device is running in operational mode, it needs to apply
2343 * the device configuration (DDC) parameters.
2345 * The device can work without DDC parameters, so even if it fails
2346 * to load the file, no need to fail the setup.
2348 btintel_load_ddc_config(hdev, fwname);
2350 /* Set the event mask for Intel specific vendor events. This enables
2351 * a few extra events that are useful during general operation. It
2352 * does not enable any debugging related events.
2354 * The device will function correctly without these events enabled
2355 * and thus no need to fail the setup.
2357 btintel_set_event_mask(hdev, false);
2362 static int btusb_shutdown_intel(struct hci_dev *hdev)
2364 struct sk_buff *skb;
2367 /* Some platforms have an issue with BT LED when the interface is
2368 * down or BT radio is turned off, which takes 5 seconds to BT LED
2369 * goes off. This command turns off the BT LED immediately.
2371 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2374 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2383 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2384 const bdaddr_t *bdaddr)
2386 struct sk_buff *skb;
2391 buf[1] = sizeof(bdaddr_t);
2392 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2394 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2397 BT_ERR("%s: changing Marvell device address failed (%ld)",
2406 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2407 const bdaddr_t *bdaddr)
2409 struct sk_buff *skb;
2416 buf[3] = sizeof(bdaddr_t);
2417 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2419 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2422 BT_ERR("%s: Change address command failed (%ld)",
2431 #define QCA_DFU_PACKET_LEN 4096
2433 #define QCA_GET_TARGET_VERSION 0x09
2434 #define QCA_CHECK_STATUS 0x05
2435 #define QCA_DFU_DOWNLOAD 0x01
2437 #define QCA_SYSCFG_UPDATED 0x40
2438 #define QCA_PATCH_UPDATED 0x80
2439 #define QCA_DFU_TIMEOUT 3000
2441 struct qca_version {
2443 __le32 patch_version;
2449 struct qca_rampatch_version {
2451 __le16 patch_version;
2454 struct qca_device_info {
2456 u8 rampatch_hdr; /* length of header in rampatch */
2457 u8 nvm_hdr; /* length of header in NVM */
2458 u8 ver_offset; /* offset of version structure in rampatch */
2461 static const struct qca_device_info qca_devices_table[] = {
2462 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2463 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2464 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2465 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2466 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2467 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2470 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2471 void *data, u16 size)
2473 struct btusb_data *btdata = hci_get_drvdata(hdev);
2474 struct usb_device *udev = btdata->udev;
2478 buf = kmalloc(size, GFP_KERNEL);
2482 /* Found some of USB hosts have IOT issues with ours so that we should
2483 * not wait until HCI layer is ready.
2485 pipe = usb_rcvctrlpipe(udev, 0);
2486 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2487 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2489 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2493 memcpy(data, buf, size);
2501 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2502 const struct firmware *firmware,
2505 struct btusb_data *btdata = hci_get_drvdata(hdev);
2506 struct usb_device *udev = btdata->udev;
2507 size_t count, size, sent = 0;
2511 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2515 count = firmware->size;
2517 size = min_t(size_t, count, hdr_size);
2518 memcpy(buf, firmware->data, size);
2520 /* USB patches should go down to controller through USB path
2521 * because binary format fits to go down through USB channel.
2522 * USB control path is for patching headers and USB bulk is for
2525 pipe = usb_sndctrlpipe(udev, 0);
2526 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2527 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2529 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2537 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2539 memcpy(buf, firmware->data + sent, size);
2541 pipe = usb_sndbulkpipe(udev, 0x02);
2542 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2545 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2546 hdev->name, sent, firmware->size, err);
2551 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2565 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2566 struct qca_version *ver,
2567 const struct qca_device_info *info)
2569 struct qca_rampatch_version *rver;
2570 const struct firmware *fw;
2571 u32 ver_rom, ver_patch;
2572 u16 rver_rom, rver_patch;
2576 ver_rom = le32_to_cpu(ver->rom_version);
2577 ver_patch = le32_to_cpu(ver->patch_version);
2579 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2581 err = request_firmware(&fw, fwname, &hdev->dev);
2583 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2584 hdev->name, fwname, err);
2588 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2590 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2591 rver_rom = le16_to_cpu(rver->rom_version);
2592 rver_patch = le16_to_cpu(rver->patch_version);
2594 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2595 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2598 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2599 BT_ERR("%s: rampatch file version did not match with firmware",
2605 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2608 release_firmware(fw);
2613 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2614 struct qca_version *ver,
2615 const struct qca_device_info *info)
2617 const struct firmware *fw;
2621 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2622 le32_to_cpu(ver->rom_version));
2624 err = request_firmware(&fw, fwname, &hdev->dev);
2626 BT_ERR("%s: failed to request NVM file: %s (%d)",
2627 hdev->name, fwname, err);
2631 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2633 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2635 release_firmware(fw);
2640 static int btusb_setup_qca(struct hci_dev *hdev)
2642 const struct qca_device_info *info = NULL;
2643 struct qca_version ver;
2648 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2653 ver_rom = le32_to_cpu(ver.rom_version);
2654 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2655 if (ver_rom == qca_devices_table[i].rom_version)
2656 info = &qca_devices_table[i];
2659 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2664 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2669 if (!(status & QCA_PATCH_UPDATED)) {
2670 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2675 if (!(status & QCA_SYSCFG_UPDATED)) {
2676 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2684 #ifdef CONFIG_BT_HCIBTUSB_BCM
2685 static inline int __set_diag_interface(struct hci_dev *hdev)
2687 struct btusb_data *data = hci_get_drvdata(hdev);
2688 struct usb_interface *intf = data->diag;
2694 data->diag_tx_ep = NULL;
2695 data->diag_rx_ep = NULL;
2697 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2698 struct usb_endpoint_descriptor *ep_desc;
2700 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2702 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2703 data->diag_tx_ep = ep_desc;
2707 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2708 data->diag_rx_ep = ep_desc;
2713 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2714 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2721 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2723 struct btusb_data *data = hci_get_drvdata(hdev);
2724 struct sk_buff *skb;
2728 if (!data->diag_tx_ep)
2729 return ERR_PTR(-ENODEV);
2731 urb = usb_alloc_urb(0, GFP_KERNEL);
2733 return ERR_PTR(-ENOMEM);
2735 skb = bt_skb_alloc(2, GFP_KERNEL);
2738 return ERR_PTR(-ENOMEM);
2741 *skb_put(skb, 1) = 0xf0;
2742 *skb_put(skb, 1) = enable;
2744 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2746 usb_fill_bulk_urb(urb, data->udev, pipe,
2747 skb->data, skb->len, btusb_tx_complete, skb);
2749 skb->dev = (void *)hdev;
2754 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2756 struct btusb_data *data = hci_get_drvdata(hdev);
2762 if (!test_bit(HCI_RUNNING, &hdev->flags))
2765 urb = alloc_diag_urb(hdev, enable);
2767 return PTR_ERR(urb);
2769 return submit_or_queue_tx_urb(hdev, urb);
2773 static int btusb_probe(struct usb_interface *intf,
2774 const struct usb_device_id *id)
2776 struct usb_endpoint_descriptor *ep_desc;
2777 struct btusb_data *data;
2778 struct hci_dev *hdev;
2779 unsigned ifnum_base;
2782 BT_DBG("intf %p id %p", intf, id);
2784 /* interface numbers are hardcoded in the spec */
2785 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2786 if (!(id->driver_info & BTUSB_IFNUM_2))
2788 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2792 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2794 if (!id->driver_info) {
2795 const struct usb_device_id *match;
2797 match = usb_match_id(intf, blacklist_table);
2802 if (id->driver_info == BTUSB_IGNORE)
2805 if (id->driver_info & BTUSB_ATH3012) {
2806 struct usb_device *udev = interface_to_usbdev(intf);
2808 /* Old firmware would otherwise let ath3k driver load
2809 * patch and sysconfig files */
2810 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2814 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2818 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2819 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2821 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2822 data->intr_ep = ep_desc;
2826 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2827 data->bulk_tx_ep = ep_desc;
2831 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2832 data->bulk_rx_ep = ep_desc;
2837 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2840 if (id->driver_info & BTUSB_AMP) {
2841 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2842 data->cmdreq = 0x2b;
2844 data->cmdreq_type = USB_TYPE_CLASS;
2845 data->cmdreq = 0x00;
2848 data->udev = interface_to_usbdev(intf);
2851 INIT_WORK(&data->work, btusb_work);
2852 INIT_WORK(&data->waker, btusb_waker);
2853 init_usb_anchor(&data->deferred);
2854 init_usb_anchor(&data->tx_anchor);
2855 spin_lock_init(&data->txlock);
2857 init_usb_anchor(&data->intr_anchor);
2858 init_usb_anchor(&data->bulk_anchor);
2859 init_usb_anchor(&data->isoc_anchor);
2860 init_usb_anchor(&data->diag_anchor);
2861 spin_lock_init(&data->rxlock);
2863 if (id->driver_info & BTUSB_INTEL_NEW) {
2864 data->recv_event = btusb_recv_event_intel;
2865 data->recv_bulk = btusb_recv_bulk_intel;
2866 set_bit(BTUSB_BOOTLOADER, &data->flags);
2868 data->recv_event = hci_recv_frame;
2869 data->recv_bulk = btusb_recv_bulk;
2872 hdev = hci_alloc_dev();
2876 hdev->bus = HCI_USB;
2877 hci_set_drvdata(hdev, data);
2879 if (id->driver_info & BTUSB_AMP)
2880 hdev->dev_type = HCI_AMP;
2882 hdev->dev_type = HCI_BREDR;
2886 SET_HCIDEV_DEV(hdev, &intf->dev);
2888 hdev->open = btusb_open;
2889 hdev->close = btusb_close;
2890 hdev->flush = btusb_flush;
2891 hdev->send = btusb_send_frame;
2892 hdev->notify = btusb_notify;
2894 if (id->driver_info & BTUSB_BCM2045)
2895 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2897 if (id->driver_info & BTUSB_BCM92035)
2898 hdev->setup = btusb_setup_bcm92035;
2900 #ifdef CONFIG_BT_HCIBTUSB_BCM
2901 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2902 hdev->manufacturer = 15;
2903 hdev->setup = btbcm_setup_patchram;
2904 hdev->set_diag = btusb_bcm_set_diag;
2905 hdev->set_bdaddr = btbcm_set_bdaddr;
2907 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2908 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2911 if (id->driver_info & BTUSB_BCM_APPLE) {
2912 hdev->manufacturer = 15;
2913 hdev->setup = btbcm_setup_apple;
2914 hdev->set_diag = btusb_bcm_set_diag;
2916 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2917 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2921 if (id->driver_info & BTUSB_INTEL) {
2922 hdev->manufacturer = 2;
2923 hdev->setup = btusb_setup_intel;
2924 hdev->shutdown = btusb_shutdown_intel;
2925 hdev->set_diag = btintel_set_diag_mfg;
2926 hdev->set_bdaddr = btintel_set_bdaddr;
2927 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2928 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2929 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2932 if (id->driver_info & BTUSB_INTEL_NEW) {
2933 hdev->manufacturer = 2;
2934 hdev->send = btusb_send_frame_intel;
2935 hdev->setup = btusb_setup_intel_new;
2936 hdev->hw_error = btintel_hw_error;
2937 hdev->set_diag = btintel_set_diag;
2938 hdev->set_bdaddr = btintel_set_bdaddr;
2939 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2940 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2943 if (id->driver_info & BTUSB_MARVELL)
2944 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2946 if (id->driver_info & BTUSB_SWAVE) {
2947 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2948 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2951 if (id->driver_info & BTUSB_INTEL_BOOT) {
2952 hdev->manufacturer = 2;
2953 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2956 if (id->driver_info & BTUSB_ATH3012) {
2957 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2958 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2959 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2962 if (id->driver_info & BTUSB_QCA_ROME) {
2963 data->setup_on_usb = btusb_setup_qca;
2964 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2967 #ifdef CONFIG_BT_HCIBTUSB_RTL
2968 if (id->driver_info & BTUSB_REALTEK) {
2969 hdev->setup = btrtl_setup_realtek;
2971 /* Realtek devices lose their updated firmware over suspend,
2972 * but the USB hub doesn't notice any status change.
2973 * Explicitly request a device reset on resume.
2975 set_bit(BTUSB_RESET_RESUME, &data->flags);
2979 if (id->driver_info & BTUSB_AMP) {
2980 /* AMP controllers do not support SCO packets */
2983 /* Interface orders are hardcoded in the specification */
2984 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
2988 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2990 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2991 if (!disable_scofix)
2992 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2995 if (id->driver_info & BTUSB_BROKEN_ISOC)
2998 if (id->driver_info & BTUSB_DIGIANSWER) {
2999 data->cmdreq_type = USB_TYPE_VENDOR;
3000 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3003 if (id->driver_info & BTUSB_CSR) {
3004 struct usb_device *udev = data->udev;
3005 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3007 /* Old firmware would otherwise execute USB reset */
3008 if (bcdDevice < 0x117)
3009 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3011 /* Fake CSR devices with broken commands */
3012 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3013 hdev->setup = btusb_setup_csr;
3015 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3018 if (id->driver_info & BTUSB_SNIFFER) {
3019 struct usb_device *udev = data->udev;
3021 /* New sniffer firmware has crippled HCI interface */
3022 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3023 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3026 if (id->driver_info & BTUSB_INTEL_BOOT) {
3027 /* A bug in the bootloader causes that interrupt interface is
3028 * only enabled after receiving SetInterface(0, AltSetting=0).
3030 err = usb_set_interface(data->udev, 0, 0);
3032 BT_ERR("failed to set interface 0, alt 0 %d", err);
3039 err = usb_driver_claim_interface(&btusb_driver,
3047 #ifdef CONFIG_BT_HCIBTUSB_BCM
3049 if (!usb_driver_claim_interface(&btusb_driver,
3051 __set_diag_interface(hdev);
3057 err = hci_register_dev(hdev);
3063 usb_set_intfdata(intf, data);
3068 static void btusb_disconnect(struct usb_interface *intf)
3070 struct btusb_data *data = usb_get_intfdata(intf);
3071 struct hci_dev *hdev;
3073 BT_DBG("intf %p", intf);
3079 usb_set_intfdata(data->intf, NULL);
3082 usb_set_intfdata(data->isoc, NULL);
3085 usb_set_intfdata(data->diag, NULL);
3087 hci_unregister_dev(hdev);
3089 if (intf == data->intf) {
3091 usb_driver_release_interface(&btusb_driver, data->isoc);
3093 usb_driver_release_interface(&btusb_driver, data->diag);
3094 } else if (intf == data->isoc) {
3096 usb_driver_release_interface(&btusb_driver, data->diag);
3097 usb_driver_release_interface(&btusb_driver, data->intf);
3098 } else if (intf == data->diag) {
3099 usb_driver_release_interface(&btusb_driver, data->intf);
3101 usb_driver_release_interface(&btusb_driver, data->isoc);
3108 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3110 struct btusb_data *data = usb_get_intfdata(intf);
3112 BT_DBG("intf %p", intf);
3114 if (data->suspend_count++)
3117 spin_lock_irq(&data->txlock);
3118 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3119 set_bit(BTUSB_SUSPENDING, &data->flags);
3120 spin_unlock_irq(&data->txlock);
3122 spin_unlock_irq(&data->txlock);
3123 data->suspend_count--;
3127 cancel_work_sync(&data->work);
3129 btusb_stop_traffic(data);
3130 usb_kill_anchored_urbs(&data->tx_anchor);
3132 /* Optionally request a device reset on resume, but only when
3133 * wakeups are disabled. If wakeups are enabled we assume the
3134 * device will stay powered up throughout suspend.
3136 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3137 !device_may_wakeup(&data->udev->dev))
3138 data->udev->reset_resume = 1;
3143 static void play_deferred(struct btusb_data *data)
3148 while ((urb = usb_get_from_anchor(&data->deferred))) {
3149 err = usb_submit_urb(urb, GFP_ATOMIC);
3153 data->tx_in_flight++;
3155 usb_scuttle_anchored_urbs(&data->deferred);
3158 static int btusb_resume(struct usb_interface *intf)
3160 struct btusb_data *data = usb_get_intfdata(intf);
3161 struct hci_dev *hdev = data->hdev;
3164 BT_DBG("intf %p", intf);
3166 if (--data->suspend_count)
3169 if (!test_bit(HCI_RUNNING, &hdev->flags))
3172 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3173 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3175 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3180 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3181 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3183 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3187 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3190 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3191 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3192 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3194 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3197 spin_lock_irq(&data->txlock);
3198 play_deferred(data);
3199 clear_bit(BTUSB_SUSPENDING, &data->flags);
3200 spin_unlock_irq(&data->txlock);
3201 schedule_work(&data->work);
3206 usb_scuttle_anchored_urbs(&data->deferred);
3208 spin_lock_irq(&data->txlock);
3209 clear_bit(BTUSB_SUSPENDING, &data->flags);
3210 spin_unlock_irq(&data->txlock);
3216 static struct usb_driver btusb_driver = {
3218 .probe = btusb_probe,
3219 .disconnect = btusb_disconnect,
3221 .suspend = btusb_suspend,
3222 .resume = btusb_resume,
3224 .id_table = btusb_table,
3225 .supports_autosuspend = 1,
3226 .disable_hub_initiated_lpm = 1,
3229 module_usb_driver(btusb_driver);
3231 module_param(disable_scofix, bool, 0644);
3232 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3234 module_param(force_scofix, bool, 0644);
3235 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3237 module_param(reset, bool, 0644);
3238 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3240 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3241 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3242 MODULE_VERSION(VERSION);
3243 MODULE_LICENSE("GPL");