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(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
241 /* Atheros AR5BBU12 with sflash firmware */
242 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
244 /* Atheros AR5BBU12 with sflash firmware */
245 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
248 /* QCA ROME chipset */
249 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
250 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
251 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
253 /* Broadcom BCM2035 */
254 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
255 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
256 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
258 /* Broadcom BCM2045 */
259 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
260 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
262 /* IBM/Lenovo ThinkPad with Broadcom chip */
263 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
264 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
266 /* HP laptop with Broadcom chip */
267 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
269 /* Dell laptop with Broadcom chip */
270 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
272 /* Dell Wireless 370 and 410 devices */
273 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
274 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
276 /* Belkin F8T012 and F8T013 devices */
277 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
278 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
280 /* Asus WL-BTD202 device */
281 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
283 /* Kensington Bluetooth USB adapter */
284 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
286 /* RTX Telecom based adapters with buggy SCO support */
287 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
288 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
290 /* CONWISE Technology based adapters with buggy SCO support */
291 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
293 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
294 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
296 /* Digianswer devices */
297 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
298 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
300 /* CSR BlueCore Bluetooth Sniffer */
301 { USB_DEVICE(0x0a12, 0x0002),
302 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
304 /* Frontline ComProbe Bluetooth Sniffer */
305 { USB_DEVICE(0x16d3, 0x0002),
306 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
308 /* Marvell Bluetooth devices */
309 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
310 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
312 /* Intel Bluetooth devices */
313 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
314 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
315 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
316 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
318 /* Other Intel Bluetooth devices */
319 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
320 .driver_info = BTUSB_IGNORE },
322 /* Realtek Bluetooth devices */
323 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
324 .driver_info = BTUSB_REALTEK },
326 /* Additional Realtek 8723AE Bluetooth devices */
327 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
328 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
330 /* Additional Realtek 8723BE Bluetooth devices */
331 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
332 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
333 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
335 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
337 /* Additional Realtek 8821AE Bluetooth devices */
338 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
339 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
340 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
341 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
342 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
344 /* Silicon Wave based devices */
345 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
347 { } /* Terminating entry */
350 #define BTUSB_MAX_ISOC_FRAMES 10
352 #define BTUSB_INTR_RUNNING 0
353 #define BTUSB_BULK_RUNNING 1
354 #define BTUSB_ISOC_RUNNING 2
355 #define BTUSB_SUSPENDING 3
356 #define BTUSB_DID_ISO_RESUME 4
357 #define BTUSB_BOOTLOADER 5
358 #define BTUSB_DOWNLOADING 6
359 #define BTUSB_FIRMWARE_LOADED 7
360 #define BTUSB_FIRMWARE_FAILED 8
361 #define BTUSB_BOOTING 9
362 #define BTUSB_RESET_RESUME 10
363 #define BTUSB_DIAG_RUNNING 11
366 struct hci_dev *hdev;
367 struct usb_device *udev;
368 struct usb_interface *intf;
369 struct usb_interface *isoc;
370 struct usb_interface *diag;
374 struct work_struct work;
375 struct work_struct waker;
377 struct usb_anchor deferred;
378 struct usb_anchor tx_anchor;
382 struct usb_anchor intr_anchor;
383 struct usb_anchor bulk_anchor;
384 struct usb_anchor isoc_anchor;
385 struct usb_anchor diag_anchor;
388 struct sk_buff *evt_skb;
389 struct sk_buff *acl_skb;
390 struct sk_buff *sco_skb;
392 struct usb_endpoint_descriptor *intr_ep;
393 struct usb_endpoint_descriptor *bulk_tx_ep;
394 struct usb_endpoint_descriptor *bulk_rx_ep;
395 struct usb_endpoint_descriptor *isoc_tx_ep;
396 struct usb_endpoint_descriptor *isoc_rx_ep;
397 struct usb_endpoint_descriptor *diag_tx_ep;
398 struct usb_endpoint_descriptor *diag_rx_ep;
403 unsigned int sco_num;
407 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
408 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
410 int (*setup_on_usb)(struct hci_dev *hdev);
413 static inline void btusb_free_frags(struct btusb_data *data)
417 spin_lock_irqsave(&data->rxlock, flags);
419 kfree_skb(data->evt_skb);
420 data->evt_skb = NULL;
422 kfree_skb(data->acl_skb);
423 data->acl_skb = NULL;
425 kfree_skb(data->sco_skb);
426 data->sco_skb = NULL;
428 spin_unlock_irqrestore(&data->rxlock, flags);
431 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
436 spin_lock(&data->rxlock);
443 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
449 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
450 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
453 len = min_t(uint, bt_cb(skb)->expect, count);
454 memcpy(skb_put(skb, len), buffer, len);
458 bt_cb(skb)->expect -= len;
460 if (skb->len == HCI_EVENT_HDR_SIZE) {
461 /* Complete event header */
462 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
464 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
473 if (bt_cb(skb)->expect == 0) {
475 data->recv_event(data->hdev, skb);
481 spin_unlock(&data->rxlock);
486 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
491 spin_lock(&data->rxlock);
498 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
504 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
505 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
508 len = min_t(uint, bt_cb(skb)->expect, count);
509 memcpy(skb_put(skb, len), buffer, len);
513 bt_cb(skb)->expect -= len;
515 if (skb->len == HCI_ACL_HDR_SIZE) {
516 __le16 dlen = hci_acl_hdr(skb)->dlen;
518 /* Complete ACL header */
519 bt_cb(skb)->expect = __le16_to_cpu(dlen);
521 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
530 if (bt_cb(skb)->expect == 0) {
532 hci_recv_frame(data->hdev, skb);
538 spin_unlock(&data->rxlock);
543 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
548 spin_lock(&data->rxlock);
555 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
561 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
562 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
565 len = min_t(uint, bt_cb(skb)->expect, count);
566 memcpy(skb_put(skb, len), buffer, len);
570 bt_cb(skb)->expect -= len;
572 if (skb->len == HCI_SCO_HDR_SIZE) {
573 /* Complete SCO header */
574 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
576 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
585 if (bt_cb(skb)->expect == 0) {
587 hci_recv_frame(data->hdev, skb);
593 spin_unlock(&data->rxlock);
598 static void btusb_intr_complete(struct urb *urb)
600 struct hci_dev *hdev = urb->context;
601 struct btusb_data *data = hci_get_drvdata(hdev);
604 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
607 if (!test_bit(HCI_RUNNING, &hdev->flags))
610 if (urb->status == 0) {
611 hdev->stat.byte_rx += urb->actual_length;
613 if (btusb_recv_intr(data, urb->transfer_buffer,
614 urb->actual_length) < 0) {
615 BT_ERR("%s corrupted event packet", hdev->name);
618 } else if (urb->status == -ENOENT) {
619 /* Avoid suspend failed when usb_kill_urb */
623 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
626 usb_mark_last_busy(data->udev);
627 usb_anchor_urb(urb, &data->intr_anchor);
629 err = usb_submit_urb(urb, GFP_ATOMIC);
631 /* -EPERM: urb is being killed;
632 * -ENODEV: device got disconnected */
633 if (err != -EPERM && err != -ENODEV)
634 BT_ERR("%s urb %p failed to resubmit (%d)",
635 hdev->name, urb, -err);
636 usb_unanchor_urb(urb);
640 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
642 struct btusb_data *data = hci_get_drvdata(hdev);
648 BT_DBG("%s", hdev->name);
653 urb = usb_alloc_urb(0, mem_flags);
657 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
659 buf = kmalloc(size, mem_flags);
665 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
667 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
668 btusb_intr_complete, hdev, data->intr_ep->bInterval);
670 urb->transfer_flags |= URB_FREE_BUFFER;
672 usb_anchor_urb(urb, &data->intr_anchor);
674 err = usb_submit_urb(urb, mem_flags);
676 if (err != -EPERM && err != -ENODEV)
677 BT_ERR("%s urb %p submission failed (%d)",
678 hdev->name, urb, -err);
679 usb_unanchor_urb(urb);
687 static void btusb_bulk_complete(struct urb *urb)
689 struct hci_dev *hdev = urb->context;
690 struct btusb_data *data = hci_get_drvdata(hdev);
693 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
696 if (!test_bit(HCI_RUNNING, &hdev->flags))
699 if (urb->status == 0) {
700 hdev->stat.byte_rx += urb->actual_length;
702 if (data->recv_bulk(data, urb->transfer_buffer,
703 urb->actual_length) < 0) {
704 BT_ERR("%s corrupted ACL packet", hdev->name);
707 } else if (urb->status == -ENOENT) {
708 /* Avoid suspend failed when usb_kill_urb */
712 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
715 usb_anchor_urb(urb, &data->bulk_anchor);
716 usb_mark_last_busy(data->udev);
718 err = usb_submit_urb(urb, GFP_ATOMIC);
720 /* -EPERM: urb is being killed;
721 * -ENODEV: device got disconnected */
722 if (err != -EPERM && err != -ENODEV)
723 BT_ERR("%s urb %p failed to resubmit (%d)",
724 hdev->name, urb, -err);
725 usb_unanchor_urb(urb);
729 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
731 struct btusb_data *data = hci_get_drvdata(hdev);
735 int err, size = HCI_MAX_FRAME_SIZE;
737 BT_DBG("%s", hdev->name);
739 if (!data->bulk_rx_ep)
742 urb = usb_alloc_urb(0, mem_flags);
746 buf = kmalloc(size, mem_flags);
752 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
754 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
755 btusb_bulk_complete, hdev);
757 urb->transfer_flags |= URB_FREE_BUFFER;
759 usb_mark_last_busy(data->udev);
760 usb_anchor_urb(urb, &data->bulk_anchor);
762 err = usb_submit_urb(urb, mem_flags);
764 if (err != -EPERM && err != -ENODEV)
765 BT_ERR("%s urb %p submission failed (%d)",
766 hdev->name, urb, -err);
767 usb_unanchor_urb(urb);
775 static void btusb_isoc_complete(struct urb *urb)
777 struct hci_dev *hdev = urb->context;
778 struct btusb_data *data = hci_get_drvdata(hdev);
781 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
784 if (!test_bit(HCI_RUNNING, &hdev->flags))
787 if (urb->status == 0) {
788 for (i = 0; i < urb->number_of_packets; i++) {
789 unsigned int offset = urb->iso_frame_desc[i].offset;
790 unsigned int length = urb->iso_frame_desc[i].actual_length;
792 if (urb->iso_frame_desc[i].status)
795 hdev->stat.byte_rx += length;
797 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
799 BT_ERR("%s corrupted SCO packet", hdev->name);
803 } else if (urb->status == -ENOENT) {
804 /* Avoid suspend failed when usb_kill_urb */
808 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
811 usb_anchor_urb(urb, &data->isoc_anchor);
813 err = usb_submit_urb(urb, GFP_ATOMIC);
815 /* -EPERM: urb is being killed;
816 * -ENODEV: device got disconnected */
817 if (err != -EPERM && err != -ENODEV)
818 BT_ERR("%s urb %p failed to resubmit (%d)",
819 hdev->name, urb, -err);
820 usb_unanchor_urb(urb);
824 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
828 BT_DBG("len %d mtu %d", len, mtu);
830 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
831 i++, offset += mtu, len -= mtu) {
832 urb->iso_frame_desc[i].offset = offset;
833 urb->iso_frame_desc[i].length = mtu;
836 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
837 urb->iso_frame_desc[i].offset = offset;
838 urb->iso_frame_desc[i].length = len;
842 urb->number_of_packets = i;
845 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
847 struct btusb_data *data = hci_get_drvdata(hdev);
853 BT_DBG("%s", hdev->name);
855 if (!data->isoc_rx_ep)
858 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
862 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
863 BTUSB_MAX_ISOC_FRAMES;
865 buf = kmalloc(size, mem_flags);
871 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
873 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
874 hdev, data->isoc_rx_ep->bInterval);
876 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
878 __fill_isoc_descriptor(urb, size,
879 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
881 usb_anchor_urb(urb, &data->isoc_anchor);
883 err = usb_submit_urb(urb, mem_flags);
885 if (err != -EPERM && err != -ENODEV)
886 BT_ERR("%s urb %p submission failed (%d)",
887 hdev->name, urb, -err);
888 usb_unanchor_urb(urb);
896 static void btusb_diag_complete(struct urb *urb)
898 struct hci_dev *hdev = urb->context;
899 struct btusb_data *data = hci_get_drvdata(hdev);
902 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
905 if (urb->status == 0) {
908 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
910 memcpy(skb_put(skb, urb->actual_length),
911 urb->transfer_buffer, urb->actual_length);
912 hci_recv_diag(hdev, skb);
914 } else if (urb->status == -ENOENT) {
915 /* Avoid suspend failed when usb_kill_urb */
919 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
922 usb_anchor_urb(urb, &data->diag_anchor);
923 usb_mark_last_busy(data->udev);
925 err = usb_submit_urb(urb, GFP_ATOMIC);
927 /* -EPERM: urb is being killed;
928 * -ENODEV: device got disconnected */
929 if (err != -EPERM && err != -ENODEV)
930 BT_ERR("%s urb %p failed to resubmit (%d)",
931 hdev->name, urb, -err);
932 usb_unanchor_urb(urb);
936 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
938 struct btusb_data *data = hci_get_drvdata(hdev);
942 int err, size = HCI_MAX_FRAME_SIZE;
944 BT_DBG("%s", hdev->name);
946 if (!data->diag_rx_ep)
949 urb = usb_alloc_urb(0, mem_flags);
953 buf = kmalloc(size, mem_flags);
959 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
961 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
962 btusb_diag_complete, hdev);
964 urb->transfer_flags |= URB_FREE_BUFFER;
966 usb_mark_last_busy(data->udev);
967 usb_anchor_urb(urb, &data->diag_anchor);
969 err = usb_submit_urb(urb, mem_flags);
971 if (err != -EPERM && err != -ENODEV)
972 BT_ERR("%s urb %p submission failed (%d)",
973 hdev->name, urb, -err);
974 usb_unanchor_urb(urb);
982 static void btusb_tx_complete(struct urb *urb)
984 struct sk_buff *skb = urb->context;
985 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
986 struct btusb_data *data = hci_get_drvdata(hdev);
988 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
991 if (!test_bit(HCI_RUNNING, &hdev->flags))
995 hdev->stat.byte_tx += urb->transfer_buffer_length;
1000 spin_lock(&data->txlock);
1001 data->tx_in_flight--;
1002 spin_unlock(&data->txlock);
1004 kfree(urb->setup_packet);
1009 static void btusb_isoc_tx_complete(struct urb *urb)
1011 struct sk_buff *skb = urb->context;
1012 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1014 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1015 urb->actual_length);
1017 if (!test_bit(HCI_RUNNING, &hdev->flags))
1021 hdev->stat.byte_tx += urb->transfer_buffer_length;
1023 hdev->stat.err_tx++;
1026 kfree(urb->setup_packet);
1031 static int btusb_open(struct hci_dev *hdev)
1033 struct btusb_data *data = hci_get_drvdata(hdev);
1036 BT_DBG("%s", hdev->name);
1038 /* Patching USB firmware files prior to starting any URBs of HCI path
1039 * It is more safe to use USB bulk channel for downloading USB patch
1041 if (data->setup_on_usb) {
1042 err = data->setup_on_usb(hdev);
1047 err = usb_autopm_get_interface(data->intf);
1051 data->intf->needs_remote_wakeup = 1;
1053 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1056 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1060 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1062 usb_kill_anchored_urbs(&data->intr_anchor);
1066 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1067 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1070 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1071 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1075 usb_autopm_put_interface(data->intf);
1079 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1080 usb_autopm_put_interface(data->intf);
1084 static void btusb_stop_traffic(struct btusb_data *data)
1086 usb_kill_anchored_urbs(&data->intr_anchor);
1087 usb_kill_anchored_urbs(&data->bulk_anchor);
1088 usb_kill_anchored_urbs(&data->isoc_anchor);
1089 usb_kill_anchored_urbs(&data->diag_anchor);
1092 static int btusb_close(struct hci_dev *hdev)
1094 struct btusb_data *data = hci_get_drvdata(hdev);
1097 BT_DBG("%s", hdev->name);
1099 cancel_work_sync(&data->work);
1100 cancel_work_sync(&data->waker);
1102 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1103 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1104 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1105 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1107 btusb_stop_traffic(data);
1108 btusb_free_frags(data);
1110 err = usb_autopm_get_interface(data->intf);
1114 data->intf->needs_remote_wakeup = 0;
1115 usb_autopm_put_interface(data->intf);
1118 usb_scuttle_anchored_urbs(&data->deferred);
1122 static int btusb_flush(struct hci_dev *hdev)
1124 struct btusb_data *data = hci_get_drvdata(hdev);
1126 BT_DBG("%s", hdev->name);
1128 usb_kill_anchored_urbs(&data->tx_anchor);
1129 btusb_free_frags(data);
1134 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1136 struct btusb_data *data = hci_get_drvdata(hdev);
1137 struct usb_ctrlrequest *dr;
1141 urb = usb_alloc_urb(0, GFP_KERNEL);
1143 return ERR_PTR(-ENOMEM);
1145 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1148 return ERR_PTR(-ENOMEM);
1151 dr->bRequestType = data->cmdreq_type;
1152 dr->bRequest = data->cmdreq;
1155 dr->wLength = __cpu_to_le16(skb->len);
1157 pipe = usb_sndctrlpipe(data->udev, 0x00);
1159 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1160 skb->data, skb->len, btusb_tx_complete, skb);
1162 skb->dev = (void *)hdev;
1167 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1169 struct btusb_data *data = hci_get_drvdata(hdev);
1173 if (!data->bulk_tx_ep)
1174 return ERR_PTR(-ENODEV);
1176 urb = usb_alloc_urb(0, GFP_KERNEL);
1178 return ERR_PTR(-ENOMEM);
1180 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1182 usb_fill_bulk_urb(urb, data->udev, pipe,
1183 skb->data, skb->len, btusb_tx_complete, skb);
1185 skb->dev = (void *)hdev;
1190 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1192 struct btusb_data *data = hci_get_drvdata(hdev);
1196 if (!data->isoc_tx_ep)
1197 return ERR_PTR(-ENODEV);
1199 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1201 return ERR_PTR(-ENOMEM);
1203 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1205 usb_fill_int_urb(urb, data->udev, pipe,
1206 skb->data, skb->len, btusb_isoc_tx_complete,
1207 skb, data->isoc_tx_ep->bInterval);
1209 urb->transfer_flags = URB_ISO_ASAP;
1211 __fill_isoc_descriptor(urb, skb->len,
1212 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1214 skb->dev = (void *)hdev;
1219 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1221 struct btusb_data *data = hci_get_drvdata(hdev);
1224 usb_anchor_urb(urb, &data->tx_anchor);
1226 err = usb_submit_urb(urb, GFP_KERNEL);
1228 if (err != -EPERM && err != -ENODEV)
1229 BT_ERR("%s urb %p submission failed (%d)",
1230 hdev->name, urb, -err);
1231 kfree(urb->setup_packet);
1232 usb_unanchor_urb(urb);
1234 usb_mark_last_busy(data->udev);
1241 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1243 struct btusb_data *data = hci_get_drvdata(hdev);
1244 unsigned long flags;
1247 spin_lock_irqsave(&data->txlock, flags);
1248 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1250 data->tx_in_flight++;
1251 spin_unlock_irqrestore(&data->txlock, flags);
1254 return submit_tx_urb(hdev, urb);
1256 usb_anchor_urb(urb, &data->deferred);
1257 schedule_work(&data->waker);
1263 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1267 BT_DBG("%s", hdev->name);
1269 switch (bt_cb(skb)->pkt_type) {
1270 case HCI_COMMAND_PKT:
1271 urb = alloc_ctrl_urb(hdev, skb);
1273 return PTR_ERR(urb);
1275 hdev->stat.cmd_tx++;
1276 return submit_or_queue_tx_urb(hdev, urb);
1278 case HCI_ACLDATA_PKT:
1279 urb = alloc_bulk_urb(hdev, skb);
1281 return PTR_ERR(urb);
1283 hdev->stat.acl_tx++;
1284 return submit_or_queue_tx_urb(hdev, urb);
1286 case HCI_SCODATA_PKT:
1287 if (hci_conn_num(hdev, SCO_LINK) < 1)
1290 urb = alloc_isoc_urb(hdev, skb);
1292 return PTR_ERR(urb);
1294 hdev->stat.sco_tx++;
1295 return submit_tx_urb(hdev, urb);
1301 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1303 struct btusb_data *data = hci_get_drvdata(hdev);
1305 BT_DBG("%s evt %d", hdev->name, evt);
1307 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1308 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1309 schedule_work(&data->work);
1313 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1315 struct btusb_data *data = hci_get_drvdata(hdev);
1316 struct usb_interface *intf = data->isoc;
1317 struct usb_endpoint_descriptor *ep_desc;
1323 err = usb_set_interface(data->udev, 1, altsetting);
1325 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1329 data->isoc_altsetting = altsetting;
1331 data->isoc_tx_ep = NULL;
1332 data->isoc_rx_ep = NULL;
1334 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1335 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1337 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1338 data->isoc_tx_ep = ep_desc;
1342 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1343 data->isoc_rx_ep = ep_desc;
1348 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1349 BT_ERR("%s invalid SCO descriptors", hdev->name);
1356 static void btusb_work(struct work_struct *work)
1358 struct btusb_data *data = container_of(work, struct btusb_data, work);
1359 struct hci_dev *hdev = data->hdev;
1363 if (data->sco_num > 0) {
1364 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1365 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1367 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1368 usb_kill_anchored_urbs(&data->isoc_anchor);
1372 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1375 if (hdev->voice_setting & 0x0020) {
1376 static const int alts[3] = { 2, 4, 5 };
1378 new_alts = alts[data->sco_num - 1];
1380 new_alts = data->sco_num;
1383 if (data->isoc_altsetting != new_alts) {
1384 unsigned long flags;
1386 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1387 usb_kill_anchored_urbs(&data->isoc_anchor);
1389 /* When isochronous alternate setting needs to be
1390 * changed, because SCO connection has been added
1391 * or removed, a packet fragment may be left in the
1392 * reassembling state. This could lead to wrongly
1393 * assembled fragments.
1395 * Clear outstanding fragment when selecting a new
1396 * alternate setting.
1398 spin_lock_irqsave(&data->rxlock, flags);
1399 kfree_skb(data->sco_skb);
1400 data->sco_skb = NULL;
1401 spin_unlock_irqrestore(&data->rxlock, flags);
1403 if (__set_isoc_interface(hdev, new_alts) < 0)
1407 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1408 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1409 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1411 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1414 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1415 usb_kill_anchored_urbs(&data->isoc_anchor);
1417 __set_isoc_interface(hdev, 0);
1418 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1419 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1423 static void btusb_waker(struct work_struct *work)
1425 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1428 err = usb_autopm_get_interface(data->intf);
1432 usb_autopm_put_interface(data->intf);
1435 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1437 struct sk_buff *skb;
1440 BT_DBG("%s", hdev->name);
1442 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1444 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1451 static int btusb_setup_csr(struct hci_dev *hdev)
1453 struct hci_rp_read_local_version *rp;
1454 struct sk_buff *skb;
1456 BT_DBG("%s", hdev->name);
1458 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1461 int err = PTR_ERR(skb);
1462 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1466 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1467 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1472 rp = (struct hci_rp_read_local_version *)skb->data;
1474 /* Detect controllers which aren't real CSR ones. */
1475 if (le16_to_cpu(rp->manufacturer) != 10 ||
1476 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1477 /* Clear the reset quirk since this is not an actual
1478 * early Bluetooth 1.1 device from CSR.
1480 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1482 /* These fake CSR controllers have all a broken
1483 * stored link key handling and so just disable it.
1485 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1493 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1494 struct intel_version *ver)
1496 const struct firmware *fw;
1500 snprintf(fwname, sizeof(fwname),
1501 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1502 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1503 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1504 ver->fw_build_ww, ver->fw_build_yy);
1506 ret = request_firmware(&fw, fwname, &hdev->dev);
1508 if (ret == -EINVAL) {
1509 BT_ERR("%s Intel firmware file request failed (%d)",
1514 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1515 hdev->name, fwname, ret);
1517 /* If the correct firmware patch file is not found, use the
1518 * default firmware patch file instead
1520 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1521 ver->hw_platform, ver->hw_variant);
1522 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1523 BT_ERR("%s failed to open default Intel fw file: %s",
1524 hdev->name, fwname);
1529 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1534 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1535 const struct firmware *fw,
1536 const u8 **fw_ptr, int *disable_patch)
1538 struct sk_buff *skb;
1539 struct hci_command_hdr *cmd;
1540 const u8 *cmd_param;
1541 struct hci_event_hdr *evt = NULL;
1542 const u8 *evt_param = NULL;
1543 int remain = fw->size - (*fw_ptr - fw->data);
1545 /* The first byte indicates the types of the patch command or event.
1546 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1547 * in the current firmware buffer doesn't start with 0x01 or
1548 * the size of remain buffer is smaller than HCI command header,
1549 * the firmware file is corrupted and it should stop the patching
1552 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1553 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1559 cmd = (struct hci_command_hdr *)(*fw_ptr);
1560 *fw_ptr += sizeof(*cmd);
1561 remain -= sizeof(*cmd);
1563 /* Ensure that the remain firmware data is long enough than the length
1564 * of command parameter. If not, the firmware file is corrupted.
1566 if (remain < cmd->plen) {
1567 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1571 /* If there is a command that loads a patch in the firmware
1572 * file, then enable the patch upon success, otherwise just
1573 * disable the manufacturer mode, for example patch activation
1574 * is not required when the default firmware patch file is used
1575 * because there are no patch data to load.
1577 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1580 cmd_param = *fw_ptr;
1581 *fw_ptr += cmd->plen;
1582 remain -= cmd->plen;
1584 /* This reads the expected events when the above command is sent to the
1585 * device. Some vendor commands expects more than one events, for
1586 * example command status event followed by vendor specific event.
1587 * For this case, it only keeps the last expected event. so the command
1588 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1589 * last expected event.
1591 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1595 evt = (struct hci_event_hdr *)(*fw_ptr);
1596 *fw_ptr += sizeof(*evt);
1597 remain -= sizeof(*evt);
1599 if (remain < evt->plen) {
1600 BT_ERR("%s Intel fw corrupted: invalid evt len",
1605 evt_param = *fw_ptr;
1606 *fw_ptr += evt->plen;
1607 remain -= evt->plen;
1610 /* Every HCI commands in the firmware file has its correspond event.
1611 * If event is not found or remain is smaller than zero, the firmware
1612 * file is corrupted.
1614 if (!evt || !evt_param || remain < 0) {
1615 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1619 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1620 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1622 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1623 hdev->name, cmd->opcode, PTR_ERR(skb));
1624 return PTR_ERR(skb);
1627 /* It ensures that the returned event matches the event data read from
1628 * the firmware file. At fist, it checks the length and then
1629 * the contents of the event.
1631 if (skb->len != evt->plen) {
1632 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1633 le16_to_cpu(cmd->opcode));
1638 if (memcmp(skb->data, evt_param, evt->plen)) {
1639 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1640 hdev->name, le16_to_cpu(cmd->opcode));
1649 static int btusb_setup_intel(struct hci_dev *hdev)
1651 struct sk_buff *skb;
1652 const struct firmware *fw;
1655 struct intel_version *ver;
1657 const u8 mfg_enable[] = { 0x01, 0x00 };
1658 const u8 mfg_disable[] = { 0x00, 0x00 };
1659 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1660 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1662 BT_DBG("%s", hdev->name);
1664 /* The controller has a bug with the first HCI command sent to it
1665 * returning number of completed commands as zero. This would stall the
1666 * command processing in the Bluetooth core.
1668 * As a workaround, send HCI Reset command first which will reset the
1669 * number of completed commands and allow normal command processing
1672 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1674 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1675 hdev->name, PTR_ERR(skb));
1676 return PTR_ERR(skb);
1680 /* Read Intel specific controller version first to allow selection of
1681 * which firmware file to load.
1683 * The returned information are hardware variant and revision plus
1684 * firmware variant, revision and build number.
1686 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1688 BT_ERR("%s reading Intel fw version command failed (%ld)",
1689 hdev->name, PTR_ERR(skb));
1690 return PTR_ERR(skb);
1693 if (skb->len != sizeof(*ver)) {
1694 BT_ERR("%s Intel version event length mismatch", hdev->name);
1699 ver = (struct intel_version *)skb->data;
1701 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1702 hdev->name, ver->hw_platform, ver->hw_variant,
1703 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1704 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1707 /* fw_patch_num indicates the version of patch the device currently
1708 * have. If there is no patch data in the device, it is always 0x00.
1709 * So, if it is other than 0x00, no need to patch the device again.
1711 if (ver->fw_patch_num) {
1712 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1713 hdev->name, ver->fw_patch_num);
1718 /* Opens the firmware patch file based on the firmware version read
1719 * from the controller. If it fails to open the matching firmware
1720 * patch file, it tries to open the default firmware patch file.
1721 * If no patch file is found, allow the device to operate without
1724 fw = btusb_setup_intel_get_fw(hdev, ver);
1733 /* This Intel specific command enables the manufacturer mode of the
1736 * Only while this mode is enabled, the driver can download the
1737 * firmware patch data and configuration parameters.
1739 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1741 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1742 hdev->name, PTR_ERR(skb));
1743 release_firmware(fw);
1744 return PTR_ERR(skb);
1751 /* The firmware data file consists of list of Intel specific HCI
1752 * commands and its expected events. The first byte indicates the
1753 * type of the message, either HCI command or HCI event.
1755 * It reads the command and its expected event from the firmware file,
1756 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1757 * the returned event is compared with the event read from the firmware
1758 * file and it will continue until all the messages are downloaded to
1761 * Once the firmware patching is completed successfully,
1762 * the manufacturer mode is disabled with reset and activating the
1765 * If the firmware patching fails, the manufacturer mode is
1766 * disabled with reset and deactivating the patch.
1768 * If the default patch file is used, no reset is done when disabling
1771 while (fw->size > fw_ptr - fw->data) {
1774 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1777 goto exit_mfg_deactivate;
1780 release_firmware(fw);
1783 goto exit_mfg_disable;
1785 /* Patching completed successfully and disable the manufacturer mode
1786 * with reset and activate the downloaded firmware patches.
1788 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1789 mfg_reset_activate, HCI_INIT_TIMEOUT);
1791 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1792 hdev->name, PTR_ERR(skb));
1793 return PTR_ERR(skb);
1797 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1803 /* Disable the manufacturer mode without reset */
1804 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1807 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1808 hdev->name, PTR_ERR(skb));
1809 return PTR_ERR(skb);
1813 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1817 exit_mfg_deactivate:
1818 release_firmware(fw);
1820 /* Patching failed. Disable the manufacturer mode with reset and
1821 * deactivate the downloaded firmware patches.
1823 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1824 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1826 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1827 hdev->name, PTR_ERR(skb));
1828 return PTR_ERR(skb);
1832 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1836 /* Set the event mask for Intel specific vendor events. This enables
1837 * a few extra events that are useful during general operation.
1839 btintel_set_event_mask_mfg(hdev, false);
1841 btintel_check_bdaddr(hdev);
1845 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1847 struct sk_buff *skb;
1848 struct hci_event_hdr *hdr;
1849 struct hci_ev_cmd_complete *evt;
1851 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1855 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1856 hdr->evt = HCI_EV_CMD_COMPLETE;
1857 hdr->plen = sizeof(*evt) + 1;
1859 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1861 evt->opcode = cpu_to_le16(opcode);
1863 *skb_put(skb, 1) = 0x00;
1865 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1867 return hci_recv_frame(hdev, skb);
1870 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1873 /* When the device is in bootloader mode, then it can send
1874 * events via the bulk endpoint. These events are treated the
1875 * same way as the ones received from the interrupt endpoint.
1877 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1878 return btusb_recv_intr(data, buffer, count);
1880 return btusb_recv_bulk(data, buffer, count);
1883 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1886 const struct intel_bootup *evt = ptr;
1888 if (len != sizeof(*evt))
1891 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1892 smp_mb__after_atomic();
1893 wake_up_bit(&data->flags, BTUSB_BOOTING);
1897 static void btusb_intel_secure_send_result(struct btusb_data *data,
1898 const void *ptr, unsigned int len)
1900 const struct intel_secure_send_result *evt = ptr;
1902 if (len != sizeof(*evt))
1906 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1908 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1909 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1910 smp_mb__after_atomic();
1911 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1915 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1917 struct btusb_data *data = hci_get_drvdata(hdev);
1919 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1920 struct hci_event_hdr *hdr = (void *)skb->data;
1922 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1924 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1925 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1927 switch (skb->data[2]) {
1929 /* When switching to the operational firmware
1930 * the device sends a vendor specific event
1931 * indicating that the bootup completed.
1933 btusb_intel_bootup(data, ptr, len);
1936 /* When the firmware loading completes the
1937 * device sends out a vendor specific event
1938 * indicating the result of the firmware
1941 btusb_intel_secure_send_result(data, ptr, len);
1947 return hci_recv_frame(hdev, skb);
1950 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1952 struct btusb_data *data = hci_get_drvdata(hdev);
1955 BT_DBG("%s", hdev->name);
1957 switch (bt_cb(skb)->pkt_type) {
1958 case HCI_COMMAND_PKT:
1959 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1960 struct hci_command_hdr *cmd = (void *)skb->data;
1961 __u16 opcode = le16_to_cpu(cmd->opcode);
1963 /* When in bootloader mode and the command 0xfc09
1964 * is received, it needs to be send down the
1965 * bulk endpoint. So allocate a bulk URB instead.
1967 if (opcode == 0xfc09)
1968 urb = alloc_bulk_urb(hdev, skb);
1970 urb = alloc_ctrl_urb(hdev, skb);
1972 /* When the 0xfc01 command is issued to boot into
1973 * the operational firmware, it will actually not
1974 * send a command complete event. To keep the flow
1975 * control working inject that event here.
1977 if (opcode == 0xfc01)
1978 inject_cmd_complete(hdev, opcode);
1980 urb = alloc_ctrl_urb(hdev, skb);
1983 return PTR_ERR(urb);
1985 hdev->stat.cmd_tx++;
1986 return submit_or_queue_tx_urb(hdev, urb);
1988 case HCI_ACLDATA_PKT:
1989 urb = alloc_bulk_urb(hdev, skb);
1991 return PTR_ERR(urb);
1993 hdev->stat.acl_tx++;
1994 return submit_or_queue_tx_urb(hdev, urb);
1996 case HCI_SCODATA_PKT:
1997 if (hci_conn_num(hdev, SCO_LINK) < 1)
2000 urb = alloc_isoc_urb(hdev, skb);
2002 return PTR_ERR(urb);
2004 hdev->stat.sco_tx++;
2005 return submit_tx_urb(hdev, urb);
2011 static int btusb_setup_intel_new(struct hci_dev *hdev)
2013 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2014 0x00, 0x08, 0x04, 0x00 };
2015 struct btusb_data *data = hci_get_drvdata(hdev);
2016 struct sk_buff *skb;
2017 struct intel_version *ver;
2018 struct intel_boot_params *params;
2019 const struct firmware *fw;
2023 ktime_t calltime, delta, rettime;
2024 unsigned long long duration;
2027 BT_DBG("%s", hdev->name);
2029 calltime = ktime_get();
2031 /* Read the Intel version information to determine if the device
2032 * is in bootloader mode or if it already has operational firmware
2035 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2037 BT_ERR("%s: Reading Intel version information failed (%ld)",
2038 hdev->name, PTR_ERR(skb));
2039 return PTR_ERR(skb);
2042 if (skb->len != sizeof(*ver)) {
2043 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2048 ver = (struct intel_version *)skb->data;
2050 /* The hardware platform number has a fixed value of 0x37 and
2051 * for now only accept this single value.
2053 if (ver->hw_platform != 0x37) {
2054 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2055 hdev->name, ver->hw_platform);
2060 /* At the moment the iBT 3.0 hardware variants 0x0b (LnP/SfP)
2061 * and 0x0c (WsP) are supported by this firmware loading method.
2063 * This check has been put in place to ensure correct forward
2064 * compatibility options when newer hardware variants come along.
2066 if (ver->hw_variant != 0x0b && ver->hw_variant != 0x0c) {
2067 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2068 hdev->name, ver->hw_variant);
2073 btintel_version_info(hdev, ver);
2075 /* The firmware variant determines if the device is in bootloader
2076 * mode or is running operational firmware. The value 0x06 identifies
2077 * the bootloader and the value 0x23 identifies the operational
2080 * When the operational firmware is already present, then only
2081 * the check for valid Bluetooth device address is needed. This
2082 * determines if the device will be added as configured or
2083 * unconfigured controller.
2085 * It is not possible to use the Secure Boot Parameters in this
2086 * case since that command is only available in bootloader mode.
2088 if (ver->fw_variant == 0x23) {
2090 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2091 btintel_check_bdaddr(hdev);
2095 /* If the device is not in bootloader mode, then the only possible
2096 * choice is to return an error and abort the device initialization.
2098 if (ver->fw_variant != 0x06) {
2099 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2100 hdev->name, ver->fw_variant);
2107 /* Read the secure boot parameters to identify the operating
2108 * details of the bootloader.
2110 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2112 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2113 hdev->name, PTR_ERR(skb));
2114 return PTR_ERR(skb);
2117 if (skb->len != sizeof(*params)) {
2118 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2123 params = (struct intel_boot_params *)skb->data;
2125 BT_INFO("%s: Device revision is %u", hdev->name,
2126 le16_to_cpu(params->dev_revid));
2128 BT_INFO("%s: Secure boot is %s", hdev->name,
2129 params->secure_boot ? "enabled" : "disabled");
2131 BT_INFO("%s: OTP lock is %s", hdev->name,
2132 params->otp_lock ? "enabled" : "disabled");
2134 BT_INFO("%s: API lock is %s", hdev->name,
2135 params->api_lock ? "enabled" : "disabled");
2137 BT_INFO("%s: Debug lock is %s", hdev->name,
2138 params->debug_lock ? "enabled" : "disabled");
2140 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2141 params->min_fw_build_nn, params->min_fw_build_cw,
2142 2000 + params->min_fw_build_yy);
2144 /* It is required that every single firmware fragment is acknowledged
2145 * with a command complete event. If the boot parameters indicate
2146 * that this bootloader does not send them, then abort the setup.
2148 if (params->limited_cce != 0x00) {
2149 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2150 hdev->name, params->limited_cce);
2155 /* If the OTP has no valid Bluetooth device address, then there will
2156 * also be no valid address for the operational firmware.
2158 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2159 BT_INFO("%s: No device address configured", hdev->name);
2160 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2163 /* With this Intel bootloader only the hardware variant and device
2164 * revision information are used to select the right firmware.
2166 * Currently this bootloader support is limited to hardware variant
2167 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2169 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2170 le16_to_cpu(params->dev_revid));
2172 err = request_firmware(&fw, fwname, &hdev->dev);
2174 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2180 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2182 /* Save the DDC file name for later use to apply once the firmware
2183 * downloading is done.
2185 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2186 le16_to_cpu(params->dev_revid));
2190 if (fw->size < 644) {
2191 BT_ERR("%s: Invalid size of firmware file (%zu)",
2192 hdev->name, fw->size);
2197 set_bit(BTUSB_DOWNLOADING, &data->flags);
2199 /* Start the firmware download transaction with the Init fragment
2200 * represented by the 128 bytes of CSS header.
2202 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2204 BT_ERR("%s: Failed to send firmware header (%d)",
2209 /* Send the 256 bytes of public key information from the firmware
2210 * as the PKey fragment.
2212 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2214 BT_ERR("%s: Failed to send firmware public key (%d)",
2219 /* Send the 256 bytes of signature information from the firmware
2220 * as the Sign fragment.
2222 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2224 BT_ERR("%s: Failed to send firmware signature (%d)",
2229 fw_ptr = fw->data + 644;
2232 while (fw_ptr - fw->data < fw->size) {
2233 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2235 frag_len += sizeof(*cmd) + cmd->plen;
2237 /* The parameter length of the secure send command requires
2238 * a 4 byte alignment. It happens so that the firmware file
2239 * contains proper Intel_NOP commands to align the fragments
2242 * Send set of commands with 4 byte alignment from the
2243 * firmware data buffer as a single Data fragement.
2245 if (!(frag_len % 4)) {
2246 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2248 BT_ERR("%s: Failed to send firmware data (%d)",
2258 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2260 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2262 /* Before switching the device into operational mode and with that
2263 * booting the loaded firmware, wait for the bootloader notification
2264 * that all fragments have been successfully received.
2266 * When the event processing receives the notification, then the
2267 * BTUSB_DOWNLOADING flag will be cleared.
2269 * The firmware loading should not take longer than 5 seconds
2270 * and thus just timeout if that happens and fail the setup
2273 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2275 msecs_to_jiffies(5000));
2277 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2283 BT_ERR("%s: Firmware loading timeout", hdev->name);
2288 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2289 BT_ERR("%s: Firmware loading failed", hdev->name);
2294 rettime = ktime_get();
2295 delta = ktime_sub(rettime, calltime);
2296 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2298 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2301 release_firmware(fw);
2306 calltime = ktime_get();
2308 set_bit(BTUSB_BOOTING, &data->flags);
2310 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2313 return PTR_ERR(skb);
2317 /* The bootloader will not indicate when the device is ready. This
2318 * is done by the operational firmware sending bootup notification.
2320 * Booting into operational firmware should not take longer than
2321 * 1 second. However if that happens, then just fail the setup
2322 * since something went wrong.
2324 BT_INFO("%s: Waiting for device to boot", hdev->name);
2326 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2328 msecs_to_jiffies(1000));
2331 BT_ERR("%s: Device boot interrupted", hdev->name);
2336 BT_ERR("%s: Device boot timeout", hdev->name);
2340 rettime = ktime_get();
2341 delta = ktime_sub(rettime, calltime);
2342 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2344 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2346 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2348 /* Once the device is running in operational mode, it needs to apply
2349 * the device configuration (DDC) parameters.
2351 * The device can work without DDC parameters, so even if it fails
2352 * to load the file, no need to fail the setup.
2354 btintel_load_ddc_config(hdev, fwname);
2356 /* Set the event mask for Intel specific vendor events. This enables
2357 * a few extra events that are useful during general operation. It
2358 * does not enable any debugging related events.
2360 * The device will function correctly without these events enabled
2361 * and thus no need to fail the setup.
2363 btintel_set_event_mask(hdev, false);
2368 static int btusb_shutdown_intel(struct hci_dev *hdev)
2370 struct sk_buff *skb;
2373 /* Some platforms have an issue with BT LED when the interface is
2374 * down or BT radio is turned off, which takes 5 seconds to BT LED
2375 * goes off. This command turns off the BT LED immediately.
2377 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2380 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2389 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2390 const bdaddr_t *bdaddr)
2392 struct sk_buff *skb;
2397 buf[1] = sizeof(bdaddr_t);
2398 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2400 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2403 BT_ERR("%s: changing Marvell device address failed (%ld)",
2412 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2413 const bdaddr_t *bdaddr)
2415 struct sk_buff *skb;
2422 buf[3] = sizeof(bdaddr_t);
2423 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2425 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2428 BT_ERR("%s: Change address command failed (%ld)",
2437 #define QCA_DFU_PACKET_LEN 4096
2439 #define QCA_GET_TARGET_VERSION 0x09
2440 #define QCA_CHECK_STATUS 0x05
2441 #define QCA_DFU_DOWNLOAD 0x01
2443 #define QCA_SYSCFG_UPDATED 0x40
2444 #define QCA_PATCH_UPDATED 0x80
2445 #define QCA_DFU_TIMEOUT 3000
2447 struct qca_version {
2449 __le32 patch_version;
2455 struct qca_rampatch_version {
2457 __le16 patch_version;
2460 struct qca_device_info {
2462 u8 rampatch_hdr; /* length of header in rampatch */
2463 u8 nvm_hdr; /* length of header in NVM */
2464 u8 ver_offset; /* offset of version structure in rampatch */
2467 static const struct qca_device_info qca_devices_table[] = {
2468 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2469 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2470 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2471 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2472 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2473 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2476 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2477 void *data, u16 size)
2479 struct btusb_data *btdata = hci_get_drvdata(hdev);
2480 struct usb_device *udev = btdata->udev;
2484 buf = kmalloc(size, GFP_KERNEL);
2488 /* Found some of USB hosts have IOT issues with ours so that we should
2489 * not wait until HCI layer is ready.
2491 pipe = usb_rcvctrlpipe(udev, 0);
2492 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2493 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2495 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2499 memcpy(data, buf, size);
2507 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2508 const struct firmware *firmware,
2511 struct btusb_data *btdata = hci_get_drvdata(hdev);
2512 struct usb_device *udev = btdata->udev;
2513 size_t count, size, sent = 0;
2517 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2521 count = firmware->size;
2523 size = min_t(size_t, count, hdr_size);
2524 memcpy(buf, firmware->data, size);
2526 /* USB patches should go down to controller through USB path
2527 * because binary format fits to go down through USB channel.
2528 * USB control path is for patching headers and USB bulk is for
2531 pipe = usb_sndctrlpipe(udev, 0);
2532 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2533 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2535 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2543 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2545 memcpy(buf, firmware->data + sent, size);
2547 pipe = usb_sndbulkpipe(udev, 0x02);
2548 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2551 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2552 hdev->name, sent, firmware->size, err);
2557 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2571 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2572 struct qca_version *ver,
2573 const struct qca_device_info *info)
2575 struct qca_rampatch_version *rver;
2576 const struct firmware *fw;
2577 u32 ver_rom, ver_patch;
2578 u16 rver_rom, rver_patch;
2582 ver_rom = le32_to_cpu(ver->rom_version);
2583 ver_patch = le32_to_cpu(ver->patch_version);
2585 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2587 err = request_firmware(&fw, fwname, &hdev->dev);
2589 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2590 hdev->name, fwname, err);
2594 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2596 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2597 rver_rom = le16_to_cpu(rver->rom_version);
2598 rver_patch = le16_to_cpu(rver->patch_version);
2600 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2601 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2604 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2605 BT_ERR("%s: rampatch file version did not match with firmware",
2611 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2614 release_firmware(fw);
2619 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2620 struct qca_version *ver,
2621 const struct qca_device_info *info)
2623 const struct firmware *fw;
2627 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2628 le32_to_cpu(ver->rom_version));
2630 err = request_firmware(&fw, fwname, &hdev->dev);
2632 BT_ERR("%s: failed to request NVM file: %s (%d)",
2633 hdev->name, fwname, err);
2637 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2639 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2641 release_firmware(fw);
2646 static int btusb_setup_qca(struct hci_dev *hdev)
2648 const struct qca_device_info *info = NULL;
2649 struct qca_version ver;
2654 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2659 ver_rom = le32_to_cpu(ver.rom_version);
2660 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2661 if (ver_rom == qca_devices_table[i].rom_version)
2662 info = &qca_devices_table[i];
2665 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2670 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2675 if (!(status & QCA_PATCH_UPDATED)) {
2676 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2681 if (!(status & QCA_SYSCFG_UPDATED)) {
2682 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2690 #ifdef CONFIG_BT_HCIBTUSB_BCM
2691 static inline int __set_diag_interface(struct hci_dev *hdev)
2693 struct btusb_data *data = hci_get_drvdata(hdev);
2694 struct usb_interface *intf = data->diag;
2700 data->diag_tx_ep = NULL;
2701 data->diag_rx_ep = NULL;
2703 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2704 struct usb_endpoint_descriptor *ep_desc;
2706 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2708 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2709 data->diag_tx_ep = ep_desc;
2713 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2714 data->diag_rx_ep = ep_desc;
2719 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2720 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2727 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2729 struct btusb_data *data = hci_get_drvdata(hdev);
2730 struct sk_buff *skb;
2734 if (!data->diag_tx_ep)
2735 return ERR_PTR(-ENODEV);
2737 urb = usb_alloc_urb(0, GFP_KERNEL);
2739 return ERR_PTR(-ENOMEM);
2741 skb = bt_skb_alloc(2, GFP_KERNEL);
2744 return ERR_PTR(-ENOMEM);
2747 *skb_put(skb, 1) = 0xf0;
2748 *skb_put(skb, 1) = enable;
2750 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2752 usb_fill_bulk_urb(urb, data->udev, pipe,
2753 skb->data, skb->len, btusb_tx_complete, skb);
2755 skb->dev = (void *)hdev;
2760 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2762 struct btusb_data *data = hci_get_drvdata(hdev);
2768 if (!test_bit(HCI_RUNNING, &hdev->flags))
2771 urb = alloc_diag_urb(hdev, enable);
2773 return PTR_ERR(urb);
2775 return submit_or_queue_tx_urb(hdev, urb);
2779 static int btusb_probe(struct usb_interface *intf,
2780 const struct usb_device_id *id)
2782 struct usb_endpoint_descriptor *ep_desc;
2783 struct btusb_data *data;
2784 struct hci_dev *hdev;
2785 unsigned ifnum_base;
2788 BT_DBG("intf %p id %p", intf, id);
2790 /* interface numbers are hardcoded in the spec */
2791 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2792 if (!(id->driver_info & BTUSB_IFNUM_2))
2794 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2798 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2800 if (!id->driver_info) {
2801 const struct usb_device_id *match;
2803 match = usb_match_id(intf, blacklist_table);
2808 if (id->driver_info == BTUSB_IGNORE)
2811 if (id->driver_info & BTUSB_ATH3012) {
2812 struct usb_device *udev = interface_to_usbdev(intf);
2814 /* Old firmware would otherwise let ath3k driver load
2815 * patch and sysconfig files */
2816 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2820 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2824 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2825 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2827 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2828 data->intr_ep = ep_desc;
2832 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2833 data->bulk_tx_ep = ep_desc;
2837 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2838 data->bulk_rx_ep = ep_desc;
2843 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2846 if (id->driver_info & BTUSB_AMP) {
2847 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2848 data->cmdreq = 0x2b;
2850 data->cmdreq_type = USB_TYPE_CLASS;
2851 data->cmdreq = 0x00;
2854 data->udev = interface_to_usbdev(intf);
2857 INIT_WORK(&data->work, btusb_work);
2858 INIT_WORK(&data->waker, btusb_waker);
2859 init_usb_anchor(&data->deferred);
2860 init_usb_anchor(&data->tx_anchor);
2861 spin_lock_init(&data->txlock);
2863 init_usb_anchor(&data->intr_anchor);
2864 init_usb_anchor(&data->bulk_anchor);
2865 init_usb_anchor(&data->isoc_anchor);
2866 init_usb_anchor(&data->diag_anchor);
2867 spin_lock_init(&data->rxlock);
2869 if (id->driver_info & BTUSB_INTEL_NEW) {
2870 data->recv_event = btusb_recv_event_intel;
2871 data->recv_bulk = btusb_recv_bulk_intel;
2872 set_bit(BTUSB_BOOTLOADER, &data->flags);
2874 data->recv_event = hci_recv_frame;
2875 data->recv_bulk = btusb_recv_bulk;
2878 hdev = hci_alloc_dev();
2882 hdev->bus = HCI_USB;
2883 hci_set_drvdata(hdev, data);
2885 if (id->driver_info & BTUSB_AMP)
2886 hdev->dev_type = HCI_AMP;
2888 hdev->dev_type = HCI_BREDR;
2892 SET_HCIDEV_DEV(hdev, &intf->dev);
2894 hdev->open = btusb_open;
2895 hdev->close = btusb_close;
2896 hdev->flush = btusb_flush;
2897 hdev->send = btusb_send_frame;
2898 hdev->notify = btusb_notify;
2900 if (id->driver_info & BTUSB_BCM2045)
2901 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2903 if (id->driver_info & BTUSB_BCM92035)
2904 hdev->setup = btusb_setup_bcm92035;
2906 #ifdef CONFIG_BT_HCIBTUSB_BCM
2907 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2908 hdev->manufacturer = 15;
2909 hdev->setup = btbcm_setup_patchram;
2910 hdev->set_diag = btusb_bcm_set_diag;
2911 hdev->set_bdaddr = btbcm_set_bdaddr;
2913 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2914 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2917 if (id->driver_info & BTUSB_BCM_APPLE) {
2918 hdev->manufacturer = 15;
2919 hdev->setup = btbcm_setup_apple;
2920 hdev->set_diag = btusb_bcm_set_diag;
2922 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2923 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2927 if (id->driver_info & BTUSB_INTEL) {
2928 hdev->manufacturer = 2;
2929 hdev->setup = btusb_setup_intel;
2930 hdev->shutdown = btusb_shutdown_intel;
2931 hdev->set_diag = btintel_set_diag_mfg;
2932 hdev->set_bdaddr = btintel_set_bdaddr;
2933 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2934 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2935 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2938 if (id->driver_info & BTUSB_INTEL_NEW) {
2939 hdev->manufacturer = 2;
2940 hdev->send = btusb_send_frame_intel;
2941 hdev->setup = btusb_setup_intel_new;
2942 hdev->hw_error = btintel_hw_error;
2943 hdev->set_diag = btintel_set_diag;
2944 hdev->set_bdaddr = btintel_set_bdaddr;
2945 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2946 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2949 if (id->driver_info & BTUSB_MARVELL)
2950 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2952 if (id->driver_info & BTUSB_SWAVE) {
2953 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2954 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2957 if (id->driver_info & BTUSB_INTEL_BOOT) {
2958 hdev->manufacturer = 2;
2959 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2962 if (id->driver_info & BTUSB_ATH3012) {
2963 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2964 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2965 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2968 if (id->driver_info & BTUSB_QCA_ROME) {
2969 data->setup_on_usb = btusb_setup_qca;
2970 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2973 #ifdef CONFIG_BT_HCIBTUSB_RTL
2974 if (id->driver_info & BTUSB_REALTEK) {
2975 hdev->setup = btrtl_setup_realtek;
2977 /* Realtek devices lose their updated firmware over suspend,
2978 * but the USB hub doesn't notice any status change.
2979 * Explicitly request a device reset on resume.
2981 set_bit(BTUSB_RESET_RESUME, &data->flags);
2985 if (id->driver_info & BTUSB_AMP) {
2986 /* AMP controllers do not support SCO packets */
2989 /* Interface orders are hardcoded in the specification */
2990 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
2994 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2996 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2997 if (!disable_scofix)
2998 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3001 if (id->driver_info & BTUSB_BROKEN_ISOC)
3004 if (id->driver_info & BTUSB_DIGIANSWER) {
3005 data->cmdreq_type = USB_TYPE_VENDOR;
3006 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3009 if (id->driver_info & BTUSB_CSR) {
3010 struct usb_device *udev = data->udev;
3011 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3013 /* Old firmware would otherwise execute USB reset */
3014 if (bcdDevice < 0x117)
3015 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3017 /* Fake CSR devices with broken commands */
3018 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3019 hdev->setup = btusb_setup_csr;
3021 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3024 if (id->driver_info & BTUSB_SNIFFER) {
3025 struct usb_device *udev = data->udev;
3027 /* New sniffer firmware has crippled HCI interface */
3028 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3029 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3032 if (id->driver_info & BTUSB_INTEL_BOOT) {
3033 /* A bug in the bootloader causes that interrupt interface is
3034 * only enabled after receiving SetInterface(0, AltSetting=0).
3036 err = usb_set_interface(data->udev, 0, 0);
3038 BT_ERR("failed to set interface 0, alt 0 %d", err);
3045 err = usb_driver_claim_interface(&btusb_driver,
3053 #ifdef CONFIG_BT_HCIBTUSB_BCM
3055 if (!usb_driver_claim_interface(&btusb_driver,
3057 __set_diag_interface(hdev);
3063 err = hci_register_dev(hdev);
3069 usb_set_intfdata(intf, data);
3074 static void btusb_disconnect(struct usb_interface *intf)
3076 struct btusb_data *data = usb_get_intfdata(intf);
3077 struct hci_dev *hdev;
3079 BT_DBG("intf %p", intf);
3085 usb_set_intfdata(data->intf, NULL);
3088 usb_set_intfdata(data->isoc, NULL);
3091 usb_set_intfdata(data->diag, NULL);
3093 hci_unregister_dev(hdev);
3095 if (intf == data->intf) {
3097 usb_driver_release_interface(&btusb_driver, data->isoc);
3099 usb_driver_release_interface(&btusb_driver, data->diag);
3100 } else if (intf == data->isoc) {
3102 usb_driver_release_interface(&btusb_driver, data->diag);
3103 usb_driver_release_interface(&btusb_driver, data->intf);
3104 } else if (intf == data->diag) {
3105 usb_driver_release_interface(&btusb_driver, data->intf);
3107 usb_driver_release_interface(&btusb_driver, data->isoc);
3114 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3116 struct btusb_data *data = usb_get_intfdata(intf);
3118 BT_DBG("intf %p", intf);
3120 if (data->suspend_count++)
3123 spin_lock_irq(&data->txlock);
3124 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3125 set_bit(BTUSB_SUSPENDING, &data->flags);
3126 spin_unlock_irq(&data->txlock);
3128 spin_unlock_irq(&data->txlock);
3129 data->suspend_count--;
3133 cancel_work_sync(&data->work);
3135 btusb_stop_traffic(data);
3136 usb_kill_anchored_urbs(&data->tx_anchor);
3138 /* Optionally request a device reset on resume, but only when
3139 * wakeups are disabled. If wakeups are enabled we assume the
3140 * device will stay powered up throughout suspend.
3142 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3143 !device_may_wakeup(&data->udev->dev))
3144 data->udev->reset_resume = 1;
3149 static void play_deferred(struct btusb_data *data)
3154 while ((urb = usb_get_from_anchor(&data->deferred))) {
3155 err = usb_submit_urb(urb, GFP_ATOMIC);
3159 data->tx_in_flight++;
3161 usb_scuttle_anchored_urbs(&data->deferred);
3164 static int btusb_resume(struct usb_interface *intf)
3166 struct btusb_data *data = usb_get_intfdata(intf);
3167 struct hci_dev *hdev = data->hdev;
3170 BT_DBG("intf %p", intf);
3172 if (--data->suspend_count)
3175 if (!test_bit(HCI_RUNNING, &hdev->flags))
3178 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3179 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3181 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3186 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3187 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3189 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3193 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3196 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3197 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3198 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3200 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3203 spin_lock_irq(&data->txlock);
3204 play_deferred(data);
3205 clear_bit(BTUSB_SUSPENDING, &data->flags);
3206 spin_unlock_irq(&data->txlock);
3207 schedule_work(&data->work);
3212 usb_scuttle_anchored_urbs(&data->deferred);
3214 spin_lock_irq(&data->txlock);
3215 clear_bit(BTUSB_SUSPENDING, &data->flags);
3216 spin_unlock_irq(&data->txlock);
3222 static struct usb_driver btusb_driver = {
3224 .probe = btusb_probe,
3225 .disconnect = btusb_disconnect,
3227 .suspend = btusb_suspend,
3228 .resume = btusb_resume,
3230 .id_table = btusb_table,
3231 .supports_autosuspend = 1,
3232 .disable_hub_initiated_lpm = 1,
3235 module_usb_driver(btusb_driver);
3237 module_param(disable_scofix, bool, 0644);
3238 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3240 module_param(force_scofix, bool, 0644);
3241 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3243 module_param(reset, bool, 0644);
3244 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3246 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3247 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3248 MODULE_VERSION(VERSION);
3249 MODULE_LICENSE("GPL");