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(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
240 /* Atheros AR5BBU12 with sflash firmware */
241 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
243 /* Atheros AR5BBU12 with sflash firmware */
244 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
247 /* QCA ROME chipset */
248 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
249 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
250 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
252 /* Broadcom BCM2035 */
253 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
254 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* Broadcom BCM2045 */
258 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
261 /* IBM/Lenovo ThinkPad with Broadcom chip */
262 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
263 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
265 /* HP laptop with Broadcom chip */
266 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
268 /* Dell laptop with Broadcom chip */
269 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
271 /* Dell Wireless 370 and 410 devices */
272 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
273 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
275 /* Belkin F8T012 and F8T013 devices */
276 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
277 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
279 /* Asus WL-BTD202 device */
280 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
282 /* Kensington Bluetooth USB adapter */
283 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
285 /* RTX Telecom based adapters with buggy SCO support */
286 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
287 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
289 /* CONWISE Technology based adapters with buggy SCO support */
290 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
292 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
293 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
295 /* Digianswer devices */
296 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
297 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
299 /* CSR BlueCore Bluetooth Sniffer */
300 { USB_DEVICE(0x0a12, 0x0002),
301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
303 /* Frontline ComProbe Bluetooth Sniffer */
304 { USB_DEVICE(0x16d3, 0x0002),
305 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
307 /* Marvell Bluetooth devices */
308 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
309 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
311 /* Intel Bluetooth devices */
312 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
313 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
314 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
315 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
317 /* Other Intel Bluetooth devices */
318 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
319 .driver_info = BTUSB_IGNORE },
321 /* Realtek Bluetooth devices */
322 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
323 .driver_info = BTUSB_REALTEK },
325 /* Additional Realtek 8723AE Bluetooth devices */
326 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
327 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
329 /* Additional Realtek 8723BE Bluetooth devices */
330 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
331 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
332 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
333 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
336 /* Additional Realtek 8821AE Bluetooth devices */
337 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
338 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
339 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
340 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
341 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
343 /* Silicon Wave based devices */
344 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
346 { } /* Terminating entry */
349 #define BTUSB_MAX_ISOC_FRAMES 10
351 #define BTUSB_INTR_RUNNING 0
352 #define BTUSB_BULK_RUNNING 1
353 #define BTUSB_ISOC_RUNNING 2
354 #define BTUSB_SUSPENDING 3
355 #define BTUSB_DID_ISO_RESUME 4
356 #define BTUSB_BOOTLOADER 5
357 #define BTUSB_DOWNLOADING 6
358 #define BTUSB_FIRMWARE_LOADED 7
359 #define BTUSB_FIRMWARE_FAILED 8
360 #define BTUSB_BOOTING 9
361 #define BTUSB_RESET_RESUME 10
362 #define BTUSB_DIAG_RUNNING 11
365 struct hci_dev *hdev;
366 struct usb_device *udev;
367 struct usb_interface *intf;
368 struct usb_interface *isoc;
369 struct usb_interface *diag;
373 struct work_struct work;
374 struct work_struct waker;
376 struct usb_anchor deferred;
377 struct usb_anchor tx_anchor;
381 struct usb_anchor intr_anchor;
382 struct usb_anchor bulk_anchor;
383 struct usb_anchor isoc_anchor;
384 struct usb_anchor diag_anchor;
387 struct sk_buff *evt_skb;
388 struct sk_buff *acl_skb;
389 struct sk_buff *sco_skb;
391 struct usb_endpoint_descriptor *intr_ep;
392 struct usb_endpoint_descriptor *bulk_tx_ep;
393 struct usb_endpoint_descriptor *bulk_rx_ep;
394 struct usb_endpoint_descriptor *isoc_tx_ep;
395 struct usb_endpoint_descriptor *isoc_rx_ep;
396 struct usb_endpoint_descriptor *diag_tx_ep;
397 struct usb_endpoint_descriptor *diag_rx_ep;
402 unsigned int sco_num;
406 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
407 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
409 int (*setup_on_usb)(struct hci_dev *hdev);
412 static inline void btusb_free_frags(struct btusb_data *data)
416 spin_lock_irqsave(&data->rxlock, flags);
418 kfree_skb(data->evt_skb);
419 data->evt_skb = NULL;
421 kfree_skb(data->acl_skb);
422 data->acl_skb = NULL;
424 kfree_skb(data->sco_skb);
425 data->sco_skb = NULL;
427 spin_unlock_irqrestore(&data->rxlock, flags);
430 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
435 spin_lock(&data->rxlock);
442 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
448 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
449 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
452 len = min_t(uint, bt_cb(skb)->expect, count);
453 memcpy(skb_put(skb, len), buffer, len);
457 bt_cb(skb)->expect -= len;
459 if (skb->len == HCI_EVENT_HDR_SIZE) {
460 /* Complete event header */
461 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
463 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
472 if (bt_cb(skb)->expect == 0) {
474 data->recv_event(data->hdev, skb);
480 spin_unlock(&data->rxlock);
485 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
490 spin_lock(&data->rxlock);
497 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
503 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
504 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
507 len = min_t(uint, bt_cb(skb)->expect, count);
508 memcpy(skb_put(skb, len), buffer, len);
512 bt_cb(skb)->expect -= len;
514 if (skb->len == HCI_ACL_HDR_SIZE) {
515 __le16 dlen = hci_acl_hdr(skb)->dlen;
517 /* Complete ACL header */
518 bt_cb(skb)->expect = __le16_to_cpu(dlen);
520 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
529 if (bt_cb(skb)->expect == 0) {
531 hci_recv_frame(data->hdev, skb);
537 spin_unlock(&data->rxlock);
542 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
547 spin_lock(&data->rxlock);
554 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
560 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
561 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
564 len = min_t(uint, bt_cb(skb)->expect, count);
565 memcpy(skb_put(skb, len), buffer, len);
569 bt_cb(skb)->expect -= len;
571 if (skb->len == HCI_SCO_HDR_SIZE) {
572 /* Complete SCO header */
573 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
575 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
584 if (bt_cb(skb)->expect == 0) {
586 hci_recv_frame(data->hdev, skb);
592 spin_unlock(&data->rxlock);
597 static void btusb_intr_complete(struct urb *urb)
599 struct hci_dev *hdev = urb->context;
600 struct btusb_data *data = hci_get_drvdata(hdev);
603 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
606 if (!test_bit(HCI_RUNNING, &hdev->flags))
609 if (urb->status == 0) {
610 hdev->stat.byte_rx += urb->actual_length;
612 if (btusb_recv_intr(data, urb->transfer_buffer,
613 urb->actual_length) < 0) {
614 BT_ERR("%s corrupted event packet", hdev->name);
617 } else if (urb->status == -ENOENT) {
618 /* Avoid suspend failed when usb_kill_urb */
622 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
625 usb_mark_last_busy(data->udev);
626 usb_anchor_urb(urb, &data->intr_anchor);
628 err = usb_submit_urb(urb, GFP_ATOMIC);
630 /* -EPERM: urb is being killed;
631 * -ENODEV: device got disconnected */
632 if (err != -EPERM && err != -ENODEV)
633 BT_ERR("%s urb %p failed to resubmit (%d)",
634 hdev->name, urb, -err);
635 usb_unanchor_urb(urb);
639 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
641 struct btusb_data *data = hci_get_drvdata(hdev);
647 BT_DBG("%s", hdev->name);
652 urb = usb_alloc_urb(0, mem_flags);
656 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
658 buf = kmalloc(size, mem_flags);
664 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
666 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
667 btusb_intr_complete, hdev, data->intr_ep->bInterval);
669 urb->transfer_flags |= URB_FREE_BUFFER;
671 usb_anchor_urb(urb, &data->intr_anchor);
673 err = usb_submit_urb(urb, mem_flags);
675 if (err != -EPERM && err != -ENODEV)
676 BT_ERR("%s urb %p submission failed (%d)",
677 hdev->name, urb, -err);
678 usb_unanchor_urb(urb);
686 static void btusb_bulk_complete(struct urb *urb)
688 struct hci_dev *hdev = urb->context;
689 struct btusb_data *data = hci_get_drvdata(hdev);
692 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
695 if (!test_bit(HCI_RUNNING, &hdev->flags))
698 if (urb->status == 0) {
699 hdev->stat.byte_rx += urb->actual_length;
701 if (data->recv_bulk(data, urb->transfer_buffer,
702 urb->actual_length) < 0) {
703 BT_ERR("%s corrupted ACL packet", hdev->name);
706 } else if (urb->status == -ENOENT) {
707 /* Avoid suspend failed when usb_kill_urb */
711 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
714 usb_anchor_urb(urb, &data->bulk_anchor);
715 usb_mark_last_busy(data->udev);
717 err = usb_submit_urb(urb, GFP_ATOMIC);
719 /* -EPERM: urb is being killed;
720 * -ENODEV: device got disconnected */
721 if (err != -EPERM && err != -ENODEV)
722 BT_ERR("%s urb %p failed to resubmit (%d)",
723 hdev->name, urb, -err);
724 usb_unanchor_urb(urb);
728 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
730 struct btusb_data *data = hci_get_drvdata(hdev);
734 int err, size = HCI_MAX_FRAME_SIZE;
736 BT_DBG("%s", hdev->name);
738 if (!data->bulk_rx_ep)
741 urb = usb_alloc_urb(0, mem_flags);
745 buf = kmalloc(size, mem_flags);
751 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
753 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
754 btusb_bulk_complete, hdev);
756 urb->transfer_flags |= URB_FREE_BUFFER;
758 usb_mark_last_busy(data->udev);
759 usb_anchor_urb(urb, &data->bulk_anchor);
761 err = usb_submit_urb(urb, mem_flags);
763 if (err != -EPERM && err != -ENODEV)
764 BT_ERR("%s urb %p submission failed (%d)",
765 hdev->name, urb, -err);
766 usb_unanchor_urb(urb);
774 static void btusb_isoc_complete(struct urb *urb)
776 struct hci_dev *hdev = urb->context;
777 struct btusb_data *data = hci_get_drvdata(hdev);
780 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
783 if (!test_bit(HCI_RUNNING, &hdev->flags))
786 if (urb->status == 0) {
787 for (i = 0; i < urb->number_of_packets; i++) {
788 unsigned int offset = urb->iso_frame_desc[i].offset;
789 unsigned int length = urb->iso_frame_desc[i].actual_length;
791 if (urb->iso_frame_desc[i].status)
794 hdev->stat.byte_rx += length;
796 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
798 BT_ERR("%s corrupted SCO packet", hdev->name);
802 } else if (urb->status == -ENOENT) {
803 /* Avoid suspend failed when usb_kill_urb */
807 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
810 usb_anchor_urb(urb, &data->isoc_anchor);
812 err = usb_submit_urb(urb, GFP_ATOMIC);
814 /* -EPERM: urb is being killed;
815 * -ENODEV: device got disconnected */
816 if (err != -EPERM && err != -ENODEV)
817 BT_ERR("%s urb %p failed to resubmit (%d)",
818 hdev->name, urb, -err);
819 usb_unanchor_urb(urb);
823 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
827 BT_DBG("len %d mtu %d", len, mtu);
829 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
830 i++, offset += mtu, len -= mtu) {
831 urb->iso_frame_desc[i].offset = offset;
832 urb->iso_frame_desc[i].length = mtu;
835 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
836 urb->iso_frame_desc[i].offset = offset;
837 urb->iso_frame_desc[i].length = len;
841 urb->number_of_packets = i;
844 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
846 struct btusb_data *data = hci_get_drvdata(hdev);
852 BT_DBG("%s", hdev->name);
854 if (!data->isoc_rx_ep)
857 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
861 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
862 BTUSB_MAX_ISOC_FRAMES;
864 buf = kmalloc(size, mem_flags);
870 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
872 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
873 hdev, data->isoc_rx_ep->bInterval);
875 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
877 __fill_isoc_descriptor(urb, size,
878 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
880 usb_anchor_urb(urb, &data->isoc_anchor);
882 err = usb_submit_urb(urb, mem_flags);
884 if (err != -EPERM && err != -ENODEV)
885 BT_ERR("%s urb %p submission failed (%d)",
886 hdev->name, urb, -err);
887 usb_unanchor_urb(urb);
895 static void btusb_diag_complete(struct urb *urb)
897 struct hci_dev *hdev = urb->context;
898 struct btusb_data *data = hci_get_drvdata(hdev);
901 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
904 if (urb->status == 0) {
907 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
909 memcpy(skb_put(skb, urb->actual_length),
910 urb->transfer_buffer, urb->actual_length);
911 hci_recv_diag(hdev, skb);
913 } else if (urb->status == -ENOENT) {
914 /* Avoid suspend failed when usb_kill_urb */
918 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
921 usb_anchor_urb(urb, &data->diag_anchor);
922 usb_mark_last_busy(data->udev);
924 err = usb_submit_urb(urb, GFP_ATOMIC);
926 /* -EPERM: urb is being killed;
927 * -ENODEV: device got disconnected */
928 if (err != -EPERM && err != -ENODEV)
929 BT_ERR("%s urb %p failed to resubmit (%d)",
930 hdev->name, urb, -err);
931 usb_unanchor_urb(urb);
935 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
937 struct btusb_data *data = hci_get_drvdata(hdev);
941 int err, size = HCI_MAX_FRAME_SIZE;
943 BT_DBG("%s", hdev->name);
945 if (!data->diag_rx_ep)
948 urb = usb_alloc_urb(0, mem_flags);
952 buf = kmalloc(size, mem_flags);
958 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
960 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
961 btusb_diag_complete, hdev);
963 urb->transfer_flags |= URB_FREE_BUFFER;
965 usb_mark_last_busy(data->udev);
966 usb_anchor_urb(urb, &data->diag_anchor);
968 err = usb_submit_urb(urb, mem_flags);
970 if (err != -EPERM && err != -ENODEV)
971 BT_ERR("%s urb %p submission failed (%d)",
972 hdev->name, urb, -err);
973 usb_unanchor_urb(urb);
981 static void btusb_tx_complete(struct urb *urb)
983 struct sk_buff *skb = urb->context;
984 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
985 struct btusb_data *data = hci_get_drvdata(hdev);
987 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
990 if (!test_bit(HCI_RUNNING, &hdev->flags))
994 hdev->stat.byte_tx += urb->transfer_buffer_length;
999 spin_lock(&data->txlock);
1000 data->tx_in_flight--;
1001 spin_unlock(&data->txlock);
1003 kfree(urb->setup_packet);
1008 static void btusb_isoc_tx_complete(struct urb *urb)
1010 struct sk_buff *skb = urb->context;
1011 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1013 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1014 urb->actual_length);
1016 if (!test_bit(HCI_RUNNING, &hdev->flags))
1020 hdev->stat.byte_tx += urb->transfer_buffer_length;
1022 hdev->stat.err_tx++;
1025 kfree(urb->setup_packet);
1030 static int btusb_open(struct hci_dev *hdev)
1032 struct btusb_data *data = hci_get_drvdata(hdev);
1035 BT_DBG("%s", hdev->name);
1037 /* Patching USB firmware files prior to starting any URBs of HCI path
1038 * It is more safe to use USB bulk channel for downloading USB patch
1040 if (data->setup_on_usb) {
1041 err = data->setup_on_usb(hdev);
1046 err = usb_autopm_get_interface(data->intf);
1050 data->intf->needs_remote_wakeup = 1;
1052 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1055 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1059 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1061 usb_kill_anchored_urbs(&data->intr_anchor);
1065 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1066 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1069 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1070 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1074 usb_autopm_put_interface(data->intf);
1078 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1079 usb_autopm_put_interface(data->intf);
1083 static void btusb_stop_traffic(struct btusb_data *data)
1085 usb_kill_anchored_urbs(&data->intr_anchor);
1086 usb_kill_anchored_urbs(&data->bulk_anchor);
1087 usb_kill_anchored_urbs(&data->isoc_anchor);
1088 usb_kill_anchored_urbs(&data->diag_anchor);
1091 static int btusb_close(struct hci_dev *hdev)
1093 struct btusb_data *data = hci_get_drvdata(hdev);
1096 BT_DBG("%s", hdev->name);
1098 cancel_work_sync(&data->work);
1099 cancel_work_sync(&data->waker);
1101 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1102 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1103 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1104 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1106 btusb_stop_traffic(data);
1107 btusb_free_frags(data);
1109 err = usb_autopm_get_interface(data->intf);
1113 data->intf->needs_remote_wakeup = 0;
1114 usb_autopm_put_interface(data->intf);
1117 usb_scuttle_anchored_urbs(&data->deferred);
1121 static int btusb_flush(struct hci_dev *hdev)
1123 struct btusb_data *data = hci_get_drvdata(hdev);
1125 BT_DBG("%s", hdev->name);
1127 usb_kill_anchored_urbs(&data->tx_anchor);
1128 btusb_free_frags(data);
1133 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1135 struct btusb_data *data = hci_get_drvdata(hdev);
1136 struct usb_ctrlrequest *dr;
1140 urb = usb_alloc_urb(0, GFP_KERNEL);
1142 return ERR_PTR(-ENOMEM);
1144 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1147 return ERR_PTR(-ENOMEM);
1150 dr->bRequestType = data->cmdreq_type;
1151 dr->bRequest = data->cmdreq;
1154 dr->wLength = __cpu_to_le16(skb->len);
1156 pipe = usb_sndctrlpipe(data->udev, 0x00);
1158 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1159 skb->data, skb->len, btusb_tx_complete, skb);
1161 skb->dev = (void *)hdev;
1166 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1168 struct btusb_data *data = hci_get_drvdata(hdev);
1172 if (!data->bulk_tx_ep)
1173 return ERR_PTR(-ENODEV);
1175 urb = usb_alloc_urb(0, GFP_KERNEL);
1177 return ERR_PTR(-ENOMEM);
1179 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1181 usb_fill_bulk_urb(urb, data->udev, pipe,
1182 skb->data, skb->len, btusb_tx_complete, skb);
1184 skb->dev = (void *)hdev;
1189 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1191 struct btusb_data *data = hci_get_drvdata(hdev);
1195 if (!data->isoc_tx_ep)
1196 return ERR_PTR(-ENODEV);
1198 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1200 return ERR_PTR(-ENOMEM);
1202 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1204 usb_fill_int_urb(urb, data->udev, pipe,
1205 skb->data, skb->len, btusb_isoc_tx_complete,
1206 skb, data->isoc_tx_ep->bInterval);
1208 urb->transfer_flags = URB_ISO_ASAP;
1210 __fill_isoc_descriptor(urb, skb->len,
1211 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1213 skb->dev = (void *)hdev;
1218 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1220 struct btusb_data *data = hci_get_drvdata(hdev);
1223 usb_anchor_urb(urb, &data->tx_anchor);
1225 err = usb_submit_urb(urb, GFP_KERNEL);
1227 if (err != -EPERM && err != -ENODEV)
1228 BT_ERR("%s urb %p submission failed (%d)",
1229 hdev->name, urb, -err);
1230 kfree(urb->setup_packet);
1231 usb_unanchor_urb(urb);
1233 usb_mark_last_busy(data->udev);
1240 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1242 struct btusb_data *data = hci_get_drvdata(hdev);
1243 unsigned long flags;
1246 spin_lock_irqsave(&data->txlock, flags);
1247 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1249 data->tx_in_flight++;
1250 spin_unlock_irqrestore(&data->txlock, flags);
1253 return submit_tx_urb(hdev, urb);
1255 usb_anchor_urb(urb, &data->deferred);
1256 schedule_work(&data->waker);
1262 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1266 BT_DBG("%s", hdev->name);
1268 switch (bt_cb(skb)->pkt_type) {
1269 case HCI_COMMAND_PKT:
1270 urb = alloc_ctrl_urb(hdev, skb);
1272 return PTR_ERR(urb);
1274 hdev->stat.cmd_tx++;
1275 return submit_or_queue_tx_urb(hdev, urb);
1277 case HCI_ACLDATA_PKT:
1278 urb = alloc_bulk_urb(hdev, skb);
1280 return PTR_ERR(urb);
1282 hdev->stat.acl_tx++;
1283 return submit_or_queue_tx_urb(hdev, urb);
1285 case HCI_SCODATA_PKT:
1286 if (hci_conn_num(hdev, SCO_LINK) < 1)
1289 urb = alloc_isoc_urb(hdev, skb);
1291 return PTR_ERR(urb);
1293 hdev->stat.sco_tx++;
1294 return submit_tx_urb(hdev, urb);
1300 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1302 struct btusb_data *data = hci_get_drvdata(hdev);
1304 BT_DBG("%s evt %d", hdev->name, evt);
1306 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1307 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1308 schedule_work(&data->work);
1312 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1314 struct btusb_data *data = hci_get_drvdata(hdev);
1315 struct usb_interface *intf = data->isoc;
1316 struct usb_endpoint_descriptor *ep_desc;
1322 err = usb_set_interface(data->udev, 1, altsetting);
1324 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1328 data->isoc_altsetting = altsetting;
1330 data->isoc_tx_ep = NULL;
1331 data->isoc_rx_ep = NULL;
1333 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1334 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1336 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1337 data->isoc_tx_ep = ep_desc;
1341 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1342 data->isoc_rx_ep = ep_desc;
1347 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1348 BT_ERR("%s invalid SCO descriptors", hdev->name);
1355 static void btusb_work(struct work_struct *work)
1357 struct btusb_data *data = container_of(work, struct btusb_data, work);
1358 struct hci_dev *hdev = data->hdev;
1362 if (data->sco_num > 0) {
1363 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1364 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1366 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1367 usb_kill_anchored_urbs(&data->isoc_anchor);
1371 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1374 if (hdev->voice_setting & 0x0020) {
1375 static const int alts[3] = { 2, 4, 5 };
1377 new_alts = alts[data->sco_num - 1];
1379 new_alts = data->sco_num;
1382 if (data->isoc_altsetting != new_alts) {
1383 unsigned long flags;
1385 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1386 usb_kill_anchored_urbs(&data->isoc_anchor);
1388 /* When isochronous alternate setting needs to be
1389 * changed, because SCO connection has been added
1390 * or removed, a packet fragment may be left in the
1391 * reassembling state. This could lead to wrongly
1392 * assembled fragments.
1394 * Clear outstanding fragment when selecting a new
1395 * alternate setting.
1397 spin_lock_irqsave(&data->rxlock, flags);
1398 kfree_skb(data->sco_skb);
1399 data->sco_skb = NULL;
1400 spin_unlock_irqrestore(&data->rxlock, flags);
1402 if (__set_isoc_interface(hdev, new_alts) < 0)
1406 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1407 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1408 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1410 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1414 usb_kill_anchored_urbs(&data->isoc_anchor);
1416 __set_isoc_interface(hdev, 0);
1417 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1418 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1422 static void btusb_waker(struct work_struct *work)
1424 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1427 err = usb_autopm_get_interface(data->intf);
1431 usb_autopm_put_interface(data->intf);
1434 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1436 struct sk_buff *skb;
1439 BT_DBG("%s", hdev->name);
1441 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1443 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1450 static int btusb_setup_csr(struct hci_dev *hdev)
1452 struct hci_rp_read_local_version *rp;
1453 struct sk_buff *skb;
1455 BT_DBG("%s", hdev->name);
1457 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1460 int err = PTR_ERR(skb);
1461 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1465 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1466 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1471 rp = (struct hci_rp_read_local_version *)skb->data;
1473 /* Detect controllers which aren't real CSR ones. */
1474 if (le16_to_cpu(rp->manufacturer) != 10 ||
1475 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1476 /* Clear the reset quirk since this is not an actual
1477 * early Bluetooth 1.1 device from CSR.
1479 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1481 /* These fake CSR controllers have all a broken
1482 * stored link key handling and so just disable it.
1484 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1492 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1493 struct intel_version *ver)
1495 const struct firmware *fw;
1499 snprintf(fwname, sizeof(fwname),
1500 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1501 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1502 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1503 ver->fw_build_ww, ver->fw_build_yy);
1505 ret = request_firmware(&fw, fwname, &hdev->dev);
1507 if (ret == -EINVAL) {
1508 BT_ERR("%s Intel firmware file request failed (%d)",
1513 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1514 hdev->name, fwname, ret);
1516 /* If the correct firmware patch file is not found, use the
1517 * default firmware patch file instead
1519 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1520 ver->hw_platform, ver->hw_variant);
1521 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1522 BT_ERR("%s failed to open default Intel fw file: %s",
1523 hdev->name, fwname);
1528 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1533 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1534 const struct firmware *fw,
1535 const u8 **fw_ptr, int *disable_patch)
1537 struct sk_buff *skb;
1538 struct hci_command_hdr *cmd;
1539 const u8 *cmd_param;
1540 struct hci_event_hdr *evt = NULL;
1541 const u8 *evt_param = NULL;
1542 int remain = fw->size - (*fw_ptr - fw->data);
1544 /* The first byte indicates the types of the patch command or event.
1545 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1546 * in the current firmware buffer doesn't start with 0x01 or
1547 * the size of remain buffer is smaller than HCI command header,
1548 * the firmware file is corrupted and it should stop the patching
1551 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1552 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1558 cmd = (struct hci_command_hdr *)(*fw_ptr);
1559 *fw_ptr += sizeof(*cmd);
1560 remain -= sizeof(*cmd);
1562 /* Ensure that the remain firmware data is long enough than the length
1563 * of command parameter. If not, the firmware file is corrupted.
1565 if (remain < cmd->plen) {
1566 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1570 /* If there is a command that loads a patch in the firmware
1571 * file, then enable the patch upon success, otherwise just
1572 * disable the manufacturer mode, for example patch activation
1573 * is not required when the default firmware patch file is used
1574 * because there are no patch data to load.
1576 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1579 cmd_param = *fw_ptr;
1580 *fw_ptr += cmd->plen;
1581 remain -= cmd->plen;
1583 /* This reads the expected events when the above command is sent to the
1584 * device. Some vendor commands expects more than one events, for
1585 * example command status event followed by vendor specific event.
1586 * For this case, it only keeps the last expected event. so the command
1587 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1588 * last expected event.
1590 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1594 evt = (struct hci_event_hdr *)(*fw_ptr);
1595 *fw_ptr += sizeof(*evt);
1596 remain -= sizeof(*evt);
1598 if (remain < evt->plen) {
1599 BT_ERR("%s Intel fw corrupted: invalid evt len",
1604 evt_param = *fw_ptr;
1605 *fw_ptr += evt->plen;
1606 remain -= evt->plen;
1609 /* Every HCI commands in the firmware file has its correspond event.
1610 * If event is not found or remain is smaller than zero, the firmware
1611 * file is corrupted.
1613 if (!evt || !evt_param || remain < 0) {
1614 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1618 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1619 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1621 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1622 hdev->name, cmd->opcode, PTR_ERR(skb));
1623 return PTR_ERR(skb);
1626 /* It ensures that the returned event matches the event data read from
1627 * the firmware file. At fist, it checks the length and then
1628 * the contents of the event.
1630 if (skb->len != evt->plen) {
1631 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1632 le16_to_cpu(cmd->opcode));
1637 if (memcmp(skb->data, evt_param, evt->plen)) {
1638 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1639 hdev->name, le16_to_cpu(cmd->opcode));
1648 static int btusb_setup_intel(struct hci_dev *hdev)
1650 struct sk_buff *skb;
1651 const struct firmware *fw;
1654 struct intel_version *ver;
1656 const u8 mfg_enable[] = { 0x01, 0x00 };
1657 const u8 mfg_disable[] = { 0x00, 0x00 };
1658 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1659 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1661 BT_DBG("%s", hdev->name);
1663 /* The controller has a bug with the first HCI command sent to it
1664 * returning number of completed commands as zero. This would stall the
1665 * command processing in the Bluetooth core.
1667 * As a workaround, send HCI Reset command first which will reset the
1668 * number of completed commands and allow normal command processing
1671 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1673 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1674 hdev->name, PTR_ERR(skb));
1675 return PTR_ERR(skb);
1679 /* Read Intel specific controller version first to allow selection of
1680 * which firmware file to load.
1682 * The returned information are hardware variant and revision plus
1683 * firmware variant, revision and build number.
1685 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1687 BT_ERR("%s reading Intel fw version command failed (%ld)",
1688 hdev->name, PTR_ERR(skb));
1689 return PTR_ERR(skb);
1692 if (skb->len != sizeof(*ver)) {
1693 BT_ERR("%s Intel version event length mismatch", hdev->name);
1698 ver = (struct intel_version *)skb->data;
1700 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1701 hdev->name, ver->hw_platform, ver->hw_variant,
1702 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1703 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1706 /* fw_patch_num indicates the version of patch the device currently
1707 * have. If there is no patch data in the device, it is always 0x00.
1708 * So, if it is other than 0x00, no need to patch the device again.
1710 if (ver->fw_patch_num) {
1711 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1712 hdev->name, ver->fw_patch_num);
1717 /* Opens the firmware patch file based on the firmware version read
1718 * from the controller. If it fails to open the matching firmware
1719 * patch file, it tries to open the default firmware patch file.
1720 * If no patch file is found, allow the device to operate without
1723 fw = btusb_setup_intel_get_fw(hdev, ver);
1732 /* This Intel specific command enables the manufacturer mode of the
1735 * Only while this mode is enabled, the driver can download the
1736 * firmware patch data and configuration parameters.
1738 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1740 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1741 hdev->name, PTR_ERR(skb));
1742 release_firmware(fw);
1743 return PTR_ERR(skb);
1750 /* The firmware data file consists of list of Intel specific HCI
1751 * commands and its expected events. The first byte indicates the
1752 * type of the message, either HCI command or HCI event.
1754 * It reads the command and its expected event from the firmware file,
1755 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1756 * the returned event is compared with the event read from the firmware
1757 * file and it will continue until all the messages are downloaded to
1760 * Once the firmware patching is completed successfully,
1761 * the manufacturer mode is disabled with reset and activating the
1764 * If the firmware patching fails, the manufacturer mode is
1765 * disabled with reset and deactivating the patch.
1767 * If the default patch file is used, no reset is done when disabling
1770 while (fw->size > fw_ptr - fw->data) {
1773 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1776 goto exit_mfg_deactivate;
1779 release_firmware(fw);
1782 goto exit_mfg_disable;
1784 /* Patching completed successfully and disable the manufacturer mode
1785 * with reset and activate the downloaded firmware patches.
1787 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1788 mfg_reset_activate, HCI_INIT_TIMEOUT);
1790 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1791 hdev->name, PTR_ERR(skb));
1792 return PTR_ERR(skb);
1796 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1802 /* Disable the manufacturer mode without reset */
1803 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1806 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1807 hdev->name, PTR_ERR(skb));
1808 return PTR_ERR(skb);
1812 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1816 exit_mfg_deactivate:
1817 release_firmware(fw);
1819 /* Patching failed. Disable the manufacturer mode with reset and
1820 * deactivate the downloaded firmware patches.
1822 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1823 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1825 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1826 hdev->name, PTR_ERR(skb));
1827 return PTR_ERR(skb);
1831 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1835 /* Set the event mask for Intel specific vendor events. This enables
1836 * a few extra events that are useful during general operation.
1838 btintel_set_event_mask_mfg(hdev, false);
1840 btintel_check_bdaddr(hdev);
1844 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1846 struct sk_buff *skb;
1847 struct hci_event_hdr *hdr;
1848 struct hci_ev_cmd_complete *evt;
1850 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1854 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1855 hdr->evt = HCI_EV_CMD_COMPLETE;
1856 hdr->plen = sizeof(*evt) + 1;
1858 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1860 evt->opcode = cpu_to_le16(opcode);
1862 *skb_put(skb, 1) = 0x00;
1864 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1866 return hci_recv_frame(hdev, skb);
1869 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1872 /* When the device is in bootloader mode, then it can send
1873 * events via the bulk endpoint. These events are treated the
1874 * same way as the ones received from the interrupt endpoint.
1876 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1877 return btusb_recv_intr(data, buffer, count);
1879 return btusb_recv_bulk(data, buffer, count);
1882 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1885 const struct intel_bootup *evt = ptr;
1887 if (len != sizeof(*evt))
1890 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1891 smp_mb__after_atomic();
1892 wake_up_bit(&data->flags, BTUSB_BOOTING);
1896 static void btusb_intel_secure_send_result(struct btusb_data *data,
1897 const void *ptr, unsigned int len)
1899 const struct intel_secure_send_result *evt = ptr;
1901 if (len != sizeof(*evt))
1905 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1907 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1908 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1909 smp_mb__after_atomic();
1910 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1914 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1916 struct btusb_data *data = hci_get_drvdata(hdev);
1918 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1919 struct hci_event_hdr *hdr = (void *)skb->data;
1921 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1923 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1924 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1926 switch (skb->data[2]) {
1928 /* When switching to the operational firmware
1929 * the device sends a vendor specific event
1930 * indicating that the bootup completed.
1932 btusb_intel_bootup(data, ptr, len);
1935 /* When the firmware loading completes the
1936 * device sends out a vendor specific event
1937 * indicating the result of the firmware
1940 btusb_intel_secure_send_result(data, ptr, len);
1946 return hci_recv_frame(hdev, skb);
1949 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1951 struct btusb_data *data = hci_get_drvdata(hdev);
1954 BT_DBG("%s", hdev->name);
1956 switch (bt_cb(skb)->pkt_type) {
1957 case HCI_COMMAND_PKT:
1958 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1959 struct hci_command_hdr *cmd = (void *)skb->data;
1960 __u16 opcode = le16_to_cpu(cmd->opcode);
1962 /* When in bootloader mode and the command 0xfc09
1963 * is received, it needs to be send down the
1964 * bulk endpoint. So allocate a bulk URB instead.
1966 if (opcode == 0xfc09)
1967 urb = alloc_bulk_urb(hdev, skb);
1969 urb = alloc_ctrl_urb(hdev, skb);
1971 /* When the 0xfc01 command is issued to boot into
1972 * the operational firmware, it will actually not
1973 * send a command complete event. To keep the flow
1974 * control working inject that event here.
1976 if (opcode == 0xfc01)
1977 inject_cmd_complete(hdev, opcode);
1979 urb = alloc_ctrl_urb(hdev, skb);
1982 return PTR_ERR(urb);
1984 hdev->stat.cmd_tx++;
1985 return submit_or_queue_tx_urb(hdev, urb);
1987 case HCI_ACLDATA_PKT:
1988 urb = alloc_bulk_urb(hdev, skb);
1990 return PTR_ERR(urb);
1992 hdev->stat.acl_tx++;
1993 return submit_or_queue_tx_urb(hdev, urb);
1995 case HCI_SCODATA_PKT:
1996 if (hci_conn_num(hdev, SCO_LINK) < 1)
1999 urb = alloc_isoc_urb(hdev, skb);
2001 return PTR_ERR(urb);
2003 hdev->stat.sco_tx++;
2004 return submit_tx_urb(hdev, urb);
2010 static int btusb_setup_intel_new(struct hci_dev *hdev)
2012 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2013 0x00, 0x08, 0x04, 0x00 };
2014 struct btusb_data *data = hci_get_drvdata(hdev);
2015 struct sk_buff *skb;
2016 struct intel_version *ver;
2017 struct intel_boot_params *params;
2018 const struct firmware *fw;
2022 ktime_t calltime, delta, rettime;
2023 unsigned long long duration;
2026 BT_DBG("%s", hdev->name);
2028 calltime = ktime_get();
2030 /* Read the Intel version information to determine if the device
2031 * is in bootloader mode or if it already has operational firmware
2034 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2036 BT_ERR("%s: Reading Intel version information failed (%ld)",
2037 hdev->name, PTR_ERR(skb));
2038 return PTR_ERR(skb);
2041 if (skb->len != sizeof(*ver)) {
2042 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2047 ver = (struct intel_version *)skb->data;
2049 /* The hardware platform number has a fixed value of 0x37 and
2050 * for now only accept this single value.
2052 if (ver->hw_platform != 0x37) {
2053 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2054 hdev->name, ver->hw_platform);
2059 /* At the moment the iBT 3.0 hardware variants 0x0b (LnP/SfP)
2060 * and 0x0c (WsP) are supported by this firmware loading method.
2062 * This check has been put in place to ensure correct forward
2063 * compatibility options when newer hardware variants come along.
2065 if (ver->hw_variant != 0x0b && ver->hw_variant != 0x0c) {
2066 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2067 hdev->name, ver->hw_variant);
2072 btintel_version_info(hdev, ver);
2074 /* The firmware variant determines if the device is in bootloader
2075 * mode or is running operational firmware. The value 0x06 identifies
2076 * the bootloader and the value 0x23 identifies the operational
2079 * When the operational firmware is already present, then only
2080 * the check for valid Bluetooth device address is needed. This
2081 * determines if the device will be added as configured or
2082 * unconfigured controller.
2084 * It is not possible to use the Secure Boot Parameters in this
2085 * case since that command is only available in bootloader mode.
2087 if (ver->fw_variant == 0x23) {
2089 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2090 btintel_check_bdaddr(hdev);
2094 /* If the device is not in bootloader mode, then the only possible
2095 * choice is to return an error and abort the device initialization.
2097 if (ver->fw_variant != 0x06) {
2098 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2099 hdev->name, ver->fw_variant);
2106 /* Read the secure boot parameters to identify the operating
2107 * details of the bootloader.
2109 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2111 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2112 hdev->name, PTR_ERR(skb));
2113 return PTR_ERR(skb);
2116 if (skb->len != sizeof(*params)) {
2117 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2122 params = (struct intel_boot_params *)skb->data;
2124 BT_INFO("%s: Device revision is %u", hdev->name,
2125 le16_to_cpu(params->dev_revid));
2127 BT_INFO("%s: Secure boot is %s", hdev->name,
2128 params->secure_boot ? "enabled" : "disabled");
2130 BT_INFO("%s: OTP lock is %s", hdev->name,
2131 params->otp_lock ? "enabled" : "disabled");
2133 BT_INFO("%s: API lock is %s", hdev->name,
2134 params->api_lock ? "enabled" : "disabled");
2136 BT_INFO("%s: Debug lock is %s", hdev->name,
2137 params->debug_lock ? "enabled" : "disabled");
2139 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2140 params->min_fw_build_nn, params->min_fw_build_cw,
2141 2000 + params->min_fw_build_yy);
2143 /* It is required that every single firmware fragment is acknowledged
2144 * with a command complete event. If the boot parameters indicate
2145 * that this bootloader does not send them, then abort the setup.
2147 if (params->limited_cce != 0x00) {
2148 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2149 hdev->name, params->limited_cce);
2154 /* If the OTP has no valid Bluetooth device address, then there will
2155 * also be no valid address for the operational firmware.
2157 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2158 BT_INFO("%s: No device address configured", hdev->name);
2159 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2162 /* With this Intel bootloader only the hardware variant and device
2163 * revision information are used to select the right firmware.
2165 * Currently this bootloader support is limited to hardware variant
2166 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2168 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2169 le16_to_cpu(params->dev_revid));
2171 err = request_firmware(&fw, fwname, &hdev->dev);
2173 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2179 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2181 /* Save the DDC file name for later use to apply once the firmware
2182 * downloading is done.
2184 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2185 le16_to_cpu(params->dev_revid));
2189 if (fw->size < 644) {
2190 BT_ERR("%s: Invalid size of firmware file (%zu)",
2191 hdev->name, fw->size);
2196 set_bit(BTUSB_DOWNLOADING, &data->flags);
2198 /* Start the firmware download transaction with the Init fragment
2199 * represented by the 128 bytes of CSS header.
2201 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2203 BT_ERR("%s: Failed to send firmware header (%d)",
2208 /* Send the 256 bytes of public key information from the firmware
2209 * as the PKey fragment.
2211 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2213 BT_ERR("%s: Failed to send firmware public key (%d)",
2218 /* Send the 256 bytes of signature information from the firmware
2219 * as the Sign fragment.
2221 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2223 BT_ERR("%s: Failed to send firmware signature (%d)",
2228 fw_ptr = fw->data + 644;
2231 while (fw_ptr - fw->data < fw->size) {
2232 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2234 frag_len += sizeof(*cmd) + cmd->plen;
2236 /* The parameter length of the secure send command requires
2237 * a 4 byte alignment. It happens so that the firmware file
2238 * contains proper Intel_NOP commands to align the fragments
2241 * Send set of commands with 4 byte alignment from the
2242 * firmware data buffer as a single Data fragement.
2244 if (!(frag_len % 4)) {
2245 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2247 BT_ERR("%s: Failed to send firmware data (%d)",
2257 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2259 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2261 /* Before switching the device into operational mode and with that
2262 * booting the loaded firmware, wait for the bootloader notification
2263 * that all fragments have been successfully received.
2265 * When the event processing receives the notification, then the
2266 * BTUSB_DOWNLOADING flag will be cleared.
2268 * The firmware loading should not take longer than 5 seconds
2269 * and thus just timeout if that happens and fail the setup
2272 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2274 msecs_to_jiffies(5000));
2276 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2282 BT_ERR("%s: Firmware loading timeout", hdev->name);
2287 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2288 BT_ERR("%s: Firmware loading failed", hdev->name);
2293 rettime = ktime_get();
2294 delta = ktime_sub(rettime, calltime);
2295 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2297 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2300 release_firmware(fw);
2305 calltime = ktime_get();
2307 set_bit(BTUSB_BOOTING, &data->flags);
2309 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2312 return PTR_ERR(skb);
2316 /* The bootloader will not indicate when the device is ready. This
2317 * is done by the operational firmware sending bootup notification.
2319 * Booting into operational firmware should not take longer than
2320 * 1 second. However if that happens, then just fail the setup
2321 * since something went wrong.
2323 BT_INFO("%s: Waiting for device to boot", hdev->name);
2325 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2327 msecs_to_jiffies(1000));
2330 BT_ERR("%s: Device boot interrupted", hdev->name);
2335 BT_ERR("%s: Device boot timeout", hdev->name);
2339 rettime = ktime_get();
2340 delta = ktime_sub(rettime, calltime);
2341 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2343 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2345 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2347 /* Once the device is running in operational mode, it needs to apply
2348 * the device configuration (DDC) parameters.
2350 * The device can work without DDC parameters, so even if it fails
2351 * to load the file, no need to fail the setup.
2353 btintel_load_ddc_config(hdev, fwname);
2355 /* Set the event mask for Intel specific vendor events. This enables
2356 * a few extra events that are useful during general operation. It
2357 * does not enable any debugging related events.
2359 * The device will function correctly without these events enabled
2360 * and thus no need to fail the setup.
2362 btintel_set_event_mask(hdev, false);
2367 static int btusb_shutdown_intel(struct hci_dev *hdev)
2369 struct sk_buff *skb;
2372 /* Some platforms have an issue with BT LED when the interface is
2373 * down or BT radio is turned off, which takes 5 seconds to BT LED
2374 * goes off. This command turns off the BT LED immediately.
2376 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2379 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2388 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2389 const bdaddr_t *bdaddr)
2391 struct sk_buff *skb;
2396 buf[1] = sizeof(bdaddr_t);
2397 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2399 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2402 BT_ERR("%s: changing Marvell device address failed (%ld)",
2411 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2412 const bdaddr_t *bdaddr)
2414 struct sk_buff *skb;
2421 buf[3] = sizeof(bdaddr_t);
2422 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2424 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2427 BT_ERR("%s: Change address command failed (%ld)",
2436 #define QCA_DFU_PACKET_LEN 4096
2438 #define QCA_GET_TARGET_VERSION 0x09
2439 #define QCA_CHECK_STATUS 0x05
2440 #define QCA_DFU_DOWNLOAD 0x01
2442 #define QCA_SYSCFG_UPDATED 0x40
2443 #define QCA_PATCH_UPDATED 0x80
2444 #define QCA_DFU_TIMEOUT 3000
2446 struct qca_version {
2448 __le32 patch_version;
2454 struct qca_rampatch_version {
2456 __le16 patch_version;
2459 struct qca_device_info {
2461 u8 rampatch_hdr; /* length of header in rampatch */
2462 u8 nvm_hdr; /* length of header in NVM */
2463 u8 ver_offset; /* offset of version structure in rampatch */
2466 static const struct qca_device_info qca_devices_table[] = {
2467 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2468 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2469 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2470 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2471 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2472 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2475 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2476 void *data, u16 size)
2478 struct btusb_data *btdata = hci_get_drvdata(hdev);
2479 struct usb_device *udev = btdata->udev;
2483 buf = kmalloc(size, GFP_KERNEL);
2487 /* Found some of USB hosts have IOT issues with ours so that we should
2488 * not wait until HCI layer is ready.
2490 pipe = usb_rcvctrlpipe(udev, 0);
2491 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2492 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2494 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2498 memcpy(data, buf, size);
2506 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2507 const struct firmware *firmware,
2510 struct btusb_data *btdata = hci_get_drvdata(hdev);
2511 struct usb_device *udev = btdata->udev;
2512 size_t count, size, sent = 0;
2516 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2520 count = firmware->size;
2522 size = min_t(size_t, count, hdr_size);
2523 memcpy(buf, firmware->data, size);
2525 /* USB patches should go down to controller through USB path
2526 * because binary format fits to go down through USB channel.
2527 * USB control path is for patching headers and USB bulk is for
2530 pipe = usb_sndctrlpipe(udev, 0);
2531 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2532 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2534 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2542 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2544 memcpy(buf, firmware->data + sent, size);
2546 pipe = usb_sndbulkpipe(udev, 0x02);
2547 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2550 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2551 hdev->name, sent, firmware->size, err);
2556 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2570 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2571 struct qca_version *ver,
2572 const struct qca_device_info *info)
2574 struct qca_rampatch_version *rver;
2575 const struct firmware *fw;
2576 u32 ver_rom, ver_patch;
2577 u16 rver_rom, rver_patch;
2581 ver_rom = le32_to_cpu(ver->rom_version);
2582 ver_patch = le32_to_cpu(ver->patch_version);
2584 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2586 err = request_firmware(&fw, fwname, &hdev->dev);
2588 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2589 hdev->name, fwname, err);
2593 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2595 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2596 rver_rom = le16_to_cpu(rver->rom_version);
2597 rver_patch = le16_to_cpu(rver->patch_version);
2599 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2600 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2603 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2604 BT_ERR("%s: rampatch file version did not match with firmware",
2610 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2613 release_firmware(fw);
2618 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2619 struct qca_version *ver,
2620 const struct qca_device_info *info)
2622 const struct firmware *fw;
2626 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2627 le32_to_cpu(ver->rom_version));
2629 err = request_firmware(&fw, fwname, &hdev->dev);
2631 BT_ERR("%s: failed to request NVM file: %s (%d)",
2632 hdev->name, fwname, err);
2636 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2638 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2640 release_firmware(fw);
2645 static int btusb_setup_qca(struct hci_dev *hdev)
2647 const struct qca_device_info *info = NULL;
2648 struct qca_version ver;
2653 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2658 ver_rom = le32_to_cpu(ver.rom_version);
2659 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2660 if (ver_rom == qca_devices_table[i].rom_version)
2661 info = &qca_devices_table[i];
2664 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2669 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2674 if (!(status & QCA_PATCH_UPDATED)) {
2675 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2680 if (!(status & QCA_SYSCFG_UPDATED)) {
2681 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2689 #ifdef CONFIG_BT_HCIBTUSB_BCM
2690 static inline int __set_diag_interface(struct hci_dev *hdev)
2692 struct btusb_data *data = hci_get_drvdata(hdev);
2693 struct usb_interface *intf = data->diag;
2699 data->diag_tx_ep = NULL;
2700 data->diag_rx_ep = NULL;
2702 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2703 struct usb_endpoint_descriptor *ep_desc;
2705 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2707 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2708 data->diag_tx_ep = ep_desc;
2712 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2713 data->diag_rx_ep = ep_desc;
2718 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2719 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2726 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2728 struct btusb_data *data = hci_get_drvdata(hdev);
2729 struct sk_buff *skb;
2733 if (!data->diag_tx_ep)
2734 return ERR_PTR(-ENODEV);
2736 urb = usb_alloc_urb(0, GFP_KERNEL);
2738 return ERR_PTR(-ENOMEM);
2740 skb = bt_skb_alloc(2, GFP_KERNEL);
2743 return ERR_PTR(-ENOMEM);
2746 *skb_put(skb, 1) = 0xf0;
2747 *skb_put(skb, 1) = enable;
2749 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2751 usb_fill_bulk_urb(urb, data->udev, pipe,
2752 skb->data, skb->len, btusb_tx_complete, skb);
2754 skb->dev = (void *)hdev;
2759 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2761 struct btusb_data *data = hci_get_drvdata(hdev);
2767 if (!test_bit(HCI_RUNNING, &hdev->flags))
2770 urb = alloc_diag_urb(hdev, enable);
2772 return PTR_ERR(urb);
2774 return submit_or_queue_tx_urb(hdev, urb);
2778 static int btusb_probe(struct usb_interface *intf,
2779 const struct usb_device_id *id)
2781 struct usb_endpoint_descriptor *ep_desc;
2782 struct btusb_data *data;
2783 struct hci_dev *hdev;
2784 unsigned ifnum_base;
2787 BT_DBG("intf %p id %p", intf, id);
2789 /* interface numbers are hardcoded in the spec */
2790 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2791 if (!(id->driver_info & BTUSB_IFNUM_2))
2793 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2797 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2799 if (!id->driver_info) {
2800 const struct usb_device_id *match;
2802 match = usb_match_id(intf, blacklist_table);
2807 if (id->driver_info == BTUSB_IGNORE)
2810 if (id->driver_info & BTUSB_ATH3012) {
2811 struct usb_device *udev = interface_to_usbdev(intf);
2813 /* Old firmware would otherwise let ath3k driver load
2814 * patch and sysconfig files */
2815 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2819 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2823 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2824 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2826 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2827 data->intr_ep = ep_desc;
2831 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2832 data->bulk_tx_ep = ep_desc;
2836 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2837 data->bulk_rx_ep = ep_desc;
2842 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2845 if (id->driver_info & BTUSB_AMP) {
2846 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2847 data->cmdreq = 0x2b;
2849 data->cmdreq_type = USB_TYPE_CLASS;
2850 data->cmdreq = 0x00;
2853 data->udev = interface_to_usbdev(intf);
2856 INIT_WORK(&data->work, btusb_work);
2857 INIT_WORK(&data->waker, btusb_waker);
2858 init_usb_anchor(&data->deferred);
2859 init_usb_anchor(&data->tx_anchor);
2860 spin_lock_init(&data->txlock);
2862 init_usb_anchor(&data->intr_anchor);
2863 init_usb_anchor(&data->bulk_anchor);
2864 init_usb_anchor(&data->isoc_anchor);
2865 init_usb_anchor(&data->diag_anchor);
2866 spin_lock_init(&data->rxlock);
2868 if (id->driver_info & BTUSB_INTEL_NEW) {
2869 data->recv_event = btusb_recv_event_intel;
2870 data->recv_bulk = btusb_recv_bulk_intel;
2871 set_bit(BTUSB_BOOTLOADER, &data->flags);
2873 data->recv_event = hci_recv_frame;
2874 data->recv_bulk = btusb_recv_bulk;
2877 hdev = hci_alloc_dev();
2881 hdev->bus = HCI_USB;
2882 hci_set_drvdata(hdev, data);
2884 if (id->driver_info & BTUSB_AMP)
2885 hdev->dev_type = HCI_AMP;
2887 hdev->dev_type = HCI_BREDR;
2891 SET_HCIDEV_DEV(hdev, &intf->dev);
2893 hdev->open = btusb_open;
2894 hdev->close = btusb_close;
2895 hdev->flush = btusb_flush;
2896 hdev->send = btusb_send_frame;
2897 hdev->notify = btusb_notify;
2899 if (id->driver_info & BTUSB_BCM2045)
2900 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2902 if (id->driver_info & BTUSB_BCM92035)
2903 hdev->setup = btusb_setup_bcm92035;
2905 #ifdef CONFIG_BT_HCIBTUSB_BCM
2906 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2907 hdev->manufacturer = 15;
2908 hdev->setup = btbcm_setup_patchram;
2909 hdev->set_diag = btusb_bcm_set_diag;
2910 hdev->set_bdaddr = btbcm_set_bdaddr;
2912 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2913 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2916 if (id->driver_info & BTUSB_BCM_APPLE) {
2917 hdev->manufacturer = 15;
2918 hdev->setup = btbcm_setup_apple;
2919 hdev->set_diag = btusb_bcm_set_diag;
2921 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2922 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2926 if (id->driver_info & BTUSB_INTEL) {
2927 hdev->manufacturer = 2;
2928 hdev->setup = btusb_setup_intel;
2929 hdev->shutdown = btusb_shutdown_intel;
2930 hdev->set_diag = btintel_set_diag_mfg;
2931 hdev->set_bdaddr = btintel_set_bdaddr;
2932 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2933 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2934 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2937 if (id->driver_info & BTUSB_INTEL_NEW) {
2938 hdev->manufacturer = 2;
2939 hdev->send = btusb_send_frame_intel;
2940 hdev->setup = btusb_setup_intel_new;
2941 hdev->hw_error = btintel_hw_error;
2942 hdev->set_diag = btintel_set_diag;
2943 hdev->set_bdaddr = btintel_set_bdaddr;
2944 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2945 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2948 if (id->driver_info & BTUSB_MARVELL)
2949 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2951 if (id->driver_info & BTUSB_SWAVE) {
2952 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2953 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2956 if (id->driver_info & BTUSB_INTEL_BOOT) {
2957 hdev->manufacturer = 2;
2958 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2961 if (id->driver_info & BTUSB_ATH3012) {
2962 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2963 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2964 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2967 if (id->driver_info & BTUSB_QCA_ROME) {
2968 data->setup_on_usb = btusb_setup_qca;
2969 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2972 #ifdef CONFIG_BT_HCIBTUSB_RTL
2973 if (id->driver_info & BTUSB_REALTEK) {
2974 hdev->setup = btrtl_setup_realtek;
2976 /* Realtek devices lose their updated firmware over suspend,
2977 * but the USB hub doesn't notice any status change.
2978 * Explicitly request a device reset on resume.
2980 set_bit(BTUSB_RESET_RESUME, &data->flags);
2984 if (id->driver_info & BTUSB_AMP) {
2985 /* AMP controllers do not support SCO packets */
2988 /* Interface orders are hardcoded in the specification */
2989 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
2993 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2995 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2996 if (!disable_scofix)
2997 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3000 if (id->driver_info & BTUSB_BROKEN_ISOC)
3003 if (id->driver_info & BTUSB_DIGIANSWER) {
3004 data->cmdreq_type = USB_TYPE_VENDOR;
3005 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3008 if (id->driver_info & BTUSB_CSR) {
3009 struct usb_device *udev = data->udev;
3010 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3012 /* Old firmware would otherwise execute USB reset */
3013 if (bcdDevice < 0x117)
3014 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3016 /* Fake CSR devices with broken commands */
3017 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3018 hdev->setup = btusb_setup_csr;
3020 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3023 if (id->driver_info & BTUSB_SNIFFER) {
3024 struct usb_device *udev = data->udev;
3026 /* New sniffer firmware has crippled HCI interface */
3027 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3028 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3031 if (id->driver_info & BTUSB_INTEL_BOOT) {
3032 /* A bug in the bootloader causes that interrupt interface is
3033 * only enabled after receiving SetInterface(0, AltSetting=0).
3035 err = usb_set_interface(data->udev, 0, 0);
3037 BT_ERR("failed to set interface 0, alt 0 %d", err);
3044 err = usb_driver_claim_interface(&btusb_driver,
3052 #ifdef CONFIG_BT_HCIBTUSB_BCM
3054 if (!usb_driver_claim_interface(&btusb_driver,
3056 __set_diag_interface(hdev);
3062 err = hci_register_dev(hdev);
3068 usb_set_intfdata(intf, data);
3073 static void btusb_disconnect(struct usb_interface *intf)
3075 struct btusb_data *data = usb_get_intfdata(intf);
3076 struct hci_dev *hdev;
3078 BT_DBG("intf %p", intf);
3084 usb_set_intfdata(data->intf, NULL);
3087 usb_set_intfdata(data->isoc, NULL);
3090 usb_set_intfdata(data->diag, NULL);
3092 hci_unregister_dev(hdev);
3094 if (intf == data->intf) {
3096 usb_driver_release_interface(&btusb_driver, data->isoc);
3098 usb_driver_release_interface(&btusb_driver, data->diag);
3099 } else if (intf == data->isoc) {
3101 usb_driver_release_interface(&btusb_driver, data->diag);
3102 usb_driver_release_interface(&btusb_driver, data->intf);
3103 } else if (intf == data->diag) {
3104 usb_driver_release_interface(&btusb_driver, data->intf);
3106 usb_driver_release_interface(&btusb_driver, data->isoc);
3113 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3115 struct btusb_data *data = usb_get_intfdata(intf);
3117 BT_DBG("intf %p", intf);
3119 if (data->suspend_count++)
3122 spin_lock_irq(&data->txlock);
3123 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3124 set_bit(BTUSB_SUSPENDING, &data->flags);
3125 spin_unlock_irq(&data->txlock);
3127 spin_unlock_irq(&data->txlock);
3128 data->suspend_count--;
3132 cancel_work_sync(&data->work);
3134 btusb_stop_traffic(data);
3135 usb_kill_anchored_urbs(&data->tx_anchor);
3137 /* Optionally request a device reset on resume, but only when
3138 * wakeups are disabled. If wakeups are enabled we assume the
3139 * device will stay powered up throughout suspend.
3141 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3142 !device_may_wakeup(&data->udev->dev))
3143 data->udev->reset_resume = 1;
3148 static void play_deferred(struct btusb_data *data)
3153 while ((urb = usb_get_from_anchor(&data->deferred))) {
3154 err = usb_submit_urb(urb, GFP_ATOMIC);
3158 data->tx_in_flight++;
3160 usb_scuttle_anchored_urbs(&data->deferred);
3163 static int btusb_resume(struct usb_interface *intf)
3165 struct btusb_data *data = usb_get_intfdata(intf);
3166 struct hci_dev *hdev = data->hdev;
3169 BT_DBG("intf %p", intf);
3171 if (--data->suspend_count)
3174 if (!test_bit(HCI_RUNNING, &hdev->flags))
3177 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3178 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3180 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3185 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3186 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3188 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3192 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3195 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3196 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3197 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3199 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3202 spin_lock_irq(&data->txlock);
3203 play_deferred(data);
3204 clear_bit(BTUSB_SUSPENDING, &data->flags);
3205 spin_unlock_irq(&data->txlock);
3206 schedule_work(&data->work);
3211 usb_scuttle_anchored_urbs(&data->deferred);
3213 spin_lock_irq(&data->txlock);
3214 clear_bit(BTUSB_SUSPENDING, &data->flags);
3215 spin_unlock_irq(&data->txlock);
3221 static struct usb_driver btusb_driver = {
3223 .probe = btusb_probe,
3224 .disconnect = btusb_disconnect,
3226 .suspend = btusb_suspend,
3227 .resume = btusb_resume,
3229 .id_table = btusb_table,
3230 .supports_autosuspend = 1,
3231 .disable_hub_initiated_lpm = 1,
3234 module_usb_driver(btusb_driver);
3236 module_param(disable_scofix, bool, 0644);
3237 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3239 module_param(force_scofix, bool, 0644);
3240 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3242 module_param(reset, bool, 0644);
3243 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3245 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3246 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3247 MODULE_VERSION(VERSION);
3248 MODULE_LICENSE("GPL");