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arm64: alternatives: add enable parameter to conditional asm macros
[linux/fpc-iii.git] / drivers / bluetooth / btusb.c
blobb4cf8d9c9dac29893241cb9b814879969ed0906e
1 /*
2 *
3 * Generic Bluetooth USB driver
4 *
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
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.
12 *
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.
17 *
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
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #include <linux/firmware.h>
27 #include <asm/unaligned.h>
28
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31
32 #include "btintel.h"
33 #include "btbcm.h"
34 #include "btrtl.h"
35
36 #define VERSION "0.8"
37
38 static bool disable_scofix;
39 static bool force_scofix;
40
41 static bool reset = true;
42
43 static struct usb_driver btusb_driver;
44
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
64 static const struct usb_device_id btusb_table[] = {
65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67
68 /* Generic Bluetooth AMP device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
70
71 /* Apple-specific (Broadcom) devices */
72 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
73 .driver_info = BTUSB_BCM_APPLE },
74
75 /* MediaTek MT76x0E */
76 { USB_DEVICE(0x0e8d, 0x763f) },
77
78 /* Broadcom SoftSailing reporting vendor specific */
79 { USB_DEVICE(0x0a5c, 0x21e1) },
80
81 /* Apple MacBookPro 7,1 */
82 { USB_DEVICE(0x05ac, 0x8213) },
83
84 /* Apple iMac11,1 */
85 { USB_DEVICE(0x05ac, 0x8215) },
86
87 /* Apple MacBookPro6,2 */
88 { USB_DEVICE(0x05ac, 0x8218) },
89
90 /* Apple MacBookAir3,1, MacBookAir3,2 */
91 { USB_DEVICE(0x05ac, 0x821b) },
92
93 /* Apple MacBookAir4,1 */
94 { USB_DEVICE(0x05ac, 0x821f) },
95
96 /* Apple MacBookPro8,2 */
97 { USB_DEVICE(0x05ac, 0x821a) },
98
99 /* Apple MacMini5,1 */
100 { USB_DEVICE(0x05ac, 0x8281) },
101
102 /* AVM BlueFRITZ! USB v2.0 */
103 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
104
105 /* Bluetooth Ultraport Module from IBM */
106 { USB_DEVICE(0x04bf, 0x030a) },
107
108 /* ALPS Modules with non-standard id */
109 { USB_DEVICE(0x044e, 0x3001) },
110 { USB_DEVICE(0x044e, 0x3002) },
111
112 /* Ericsson with non-standard id */
113 { USB_DEVICE(0x0bdb, 0x1002) },
114
115 /* Canyon CN-BTU1 with HID interfaces */
116 { USB_DEVICE(0x0c10, 0x0000) },
117
118 /* Broadcom BCM20702A0 */
119 { USB_DEVICE(0x413c, 0x8197) },
120
121 /* Broadcom BCM20702B0 (Dynex/Insignia) */
122 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
123
124 /* Foxconn - Hon Hai */
125 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
126 .driver_info = BTUSB_BCM_PATCHRAM },
127
128 /* Lite-On Technology - Broadcom based */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
132 /* Broadcom devices with vendor specific id */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* ASUSTek Computer - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Belkin F8065bf - Broadcom based */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* IMC Networks - Broadcom based */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* Intel Bluetooth USB Bootloader (RAM module) */
149 { USB_DEVICE(0x8087, 0x0a5a),
150 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
151
152 { } /* Terminating entry */
153 };
154
155 MODULE_DEVICE_TABLE(usb, btusb_table);
156
157 static const struct usb_device_id blacklist_table[] = {
158 /* CSR BlueCore devices */
159 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
160
161 /* Broadcom BCM2033 without firmware */
162 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
163
164 /* Atheros 3011 with sflash firmware */
165 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
166 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
167 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
168 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
169 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
170 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
171 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
172
173 /* Atheros AR9285 Malbec with sflash firmware */
174 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
175
176 /* Atheros 3012 with sflash firmware */
177 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
218
219 /* Atheros AR5BBU12 with sflash firmware */
220 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
221
222 /* Atheros AR5BBU12 with sflash firmware */
223 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
225
226 /* QCA ROME chipset */
227 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
228 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
229 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
230
231 /* Broadcom BCM2035 */
232 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
233 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
234 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
235
236 /* Broadcom BCM2045 */
237 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
238 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
239
240 /* IBM/Lenovo ThinkPad with Broadcom chip */
241 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
242 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
243
244 /* HP laptop with Broadcom chip */
245 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
246
247 /* Dell laptop with Broadcom chip */
248 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
249
250 /* Dell Wireless 370 and 410 devices */
251 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
252 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
253
254 /* Belkin F8T012 and F8T013 devices */
255 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
256 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
257
258 /* Asus WL-BTD202 device */
259 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
260
261 /* Kensington Bluetooth USB adapter */
262 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
263
264 /* RTX Telecom based adapters with buggy SCO support */
265 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
266 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
267
268 /* CONWISE Technology based adapters with buggy SCO support */
269 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
270
271 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
272 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
273
274 /* Digianswer devices */
275 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
276 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
277
278 /* CSR BlueCore Bluetooth Sniffer */
279 { USB_DEVICE(0x0a12, 0x0002),
280 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
281
282 /* Frontline ComProbe Bluetooth Sniffer */
283 { USB_DEVICE(0x16d3, 0x0002),
284 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
285
286 /* Marvell Bluetooth devices */
287 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
288 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
289
290 /* Intel Bluetooth devices */
291 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
292 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
293 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
294 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
295
296 /* Other Intel Bluetooth devices */
297 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
298 .driver_info = BTUSB_IGNORE },
299
300 /* Realtek Bluetooth devices */
301 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
302 .driver_info = BTUSB_REALTEK },
303
304 /* Additional Realtek 8723AE Bluetooth devices */
305 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
306 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
307
308 /* Additional Realtek 8723BE Bluetooth devices */
309 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
310 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
311 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
312 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
314
315 /* Additional Realtek 8821AE Bluetooth devices */
316 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
317 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
318 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
319 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
320 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
321
322 { } /* Terminating entry */
323 };
324
325 #define BTUSB_MAX_ISOC_FRAMES 10
326
327 #define BTUSB_INTR_RUNNING 0
328 #define BTUSB_BULK_RUNNING 1
329 #define BTUSB_ISOC_RUNNING 2
330 #define BTUSB_SUSPENDING 3
331 #define BTUSB_DID_ISO_RESUME 4
332 #define BTUSB_BOOTLOADER 5
333 #define BTUSB_DOWNLOADING 6
334 #define BTUSB_FIRMWARE_LOADED 7
335 #define BTUSB_FIRMWARE_FAILED 8
336 #define BTUSB_BOOTING 9
337 #define BTUSB_RESET_RESUME 10
338
339 struct btusb_data {
340 struct hci_dev *hdev;
341 struct usb_device *udev;
342 struct usb_interface *intf;
343 struct usb_interface *isoc;
344
345 unsigned long flags;
346
347 struct work_struct work;
348 struct work_struct waker;
349
350 struct usb_anchor deferred;
351 struct usb_anchor tx_anchor;
352 int tx_in_flight;
353 spinlock_t txlock;
354
355 struct usb_anchor intr_anchor;
356 struct usb_anchor bulk_anchor;
357 struct usb_anchor isoc_anchor;
358 spinlock_t rxlock;
359
360 struct sk_buff *evt_skb;
361 struct sk_buff *acl_skb;
362 struct sk_buff *sco_skb;
363
364 struct usb_endpoint_descriptor *intr_ep;
365 struct usb_endpoint_descriptor *bulk_tx_ep;
366 struct usb_endpoint_descriptor *bulk_rx_ep;
367 struct usb_endpoint_descriptor *isoc_tx_ep;
368 struct usb_endpoint_descriptor *isoc_rx_ep;
369
370 __u8 cmdreq_type;
371 __u8 cmdreq;
372
373 unsigned int sco_num;
374 int isoc_altsetting;
375 int suspend_count;
376
377 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
378 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
379
380 int (*setup_on_usb)(struct hci_dev *hdev);
381 };
382
383 static inline void btusb_free_frags(struct btusb_data *data)
384 {
385 unsigned long flags;
386
387 spin_lock_irqsave(&data->rxlock, flags);
388
389 kfree_skb(data->evt_skb);
390 data->evt_skb = NULL;
391
392 kfree_skb(data->acl_skb);
393 data->acl_skb = NULL;
394
395 kfree_skb(data->sco_skb);
396 data->sco_skb = NULL;
397
398 spin_unlock_irqrestore(&data->rxlock, flags);
399 }
400
401 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
402 {
403 struct sk_buff *skb;
404 int err = 0;
405
406 spin_lock(&data->rxlock);
407 skb = data->evt_skb;
408
409 while (count) {
410 int len;
411
412 if (!skb) {
413 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
414 if (!skb) {
415 err = -ENOMEM;
416 break;
417 }
418
419 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
420 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
421 }
422
423 len = min_t(uint, bt_cb(skb)->expect, count);
424 memcpy(skb_put(skb, len), buffer, len);
425
426 count -= len;
427 buffer += len;
428 bt_cb(skb)->expect -= len;
429
430 if (skb->len == HCI_EVENT_HDR_SIZE) {
431 /* Complete event header */
432 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
433
434 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
435 kfree_skb(skb);
436 skb = NULL;
437
438 err = -EILSEQ;
439 break;
440 }
441 }
442
443 if (bt_cb(skb)->expect == 0) {
444 /* Complete frame */
445 data->recv_event(data->hdev, skb);
446 skb = NULL;
447 }
448 }
449
450 data->evt_skb = skb;
451 spin_unlock(&data->rxlock);
452
453 return err;
454 }
455
456 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
457 {
458 struct sk_buff *skb;
459 int err = 0;
460
461 spin_lock(&data->rxlock);
462 skb = data->acl_skb;
463
464 while (count) {
465 int len;
466
467 if (!skb) {
468 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
469 if (!skb) {
470 err = -ENOMEM;
471 break;
472 }
473
474 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
475 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
476 }
477
478 len = min_t(uint, bt_cb(skb)->expect, count);
479 memcpy(skb_put(skb, len), buffer, len);
480
481 count -= len;
482 buffer += len;
483 bt_cb(skb)->expect -= len;
484
485 if (skb->len == HCI_ACL_HDR_SIZE) {
486 __le16 dlen = hci_acl_hdr(skb)->dlen;
487
488 /* Complete ACL header */
489 bt_cb(skb)->expect = __le16_to_cpu(dlen);
490
491 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
492 kfree_skb(skb);
493 skb = NULL;
494
495 err = -EILSEQ;
496 break;
497 }
498 }
499
500 if (bt_cb(skb)->expect == 0) {
501 /* Complete frame */
502 hci_recv_frame(data->hdev, skb);
503 skb = NULL;
504 }
505 }
506
507 data->acl_skb = skb;
508 spin_unlock(&data->rxlock);
509
510 return err;
511 }
512
513 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
514 {
515 struct sk_buff *skb;
516 int err = 0;
517
518 spin_lock(&data->rxlock);
519 skb = data->sco_skb;
520
521 while (count) {
522 int len;
523
524 if (!skb) {
525 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
526 if (!skb) {
527 err = -ENOMEM;
528 break;
529 }
530
531 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
532 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
533 }
534
535 len = min_t(uint, bt_cb(skb)->expect, count);
536 memcpy(skb_put(skb, len), buffer, len);
537
538 count -= len;
539 buffer += len;
540 bt_cb(skb)->expect -= len;
541
542 if (skb->len == HCI_SCO_HDR_SIZE) {
543 /* Complete SCO header */
544 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
545
546 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
547 kfree_skb(skb);
548 skb = NULL;
549
550 err = -EILSEQ;
551 break;
552 }
553 }
554
555 if (bt_cb(skb)->expect == 0) {
556 /* Complete frame */
557 hci_recv_frame(data->hdev, skb);
558 skb = NULL;
559 }
560 }
561
562 data->sco_skb = skb;
563 spin_unlock(&data->rxlock);
564
565 return err;
566 }
567
568 static void btusb_intr_complete(struct urb *urb)
569 {
570 struct hci_dev *hdev = urb->context;
571 struct btusb_data *data = hci_get_drvdata(hdev);
572 int err;
573
574 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
575 urb->actual_length);
576
577 if (!test_bit(HCI_RUNNING, &hdev->flags))
578 return;
579
580 if (urb->status == 0) {
581 hdev->stat.byte_rx += urb->actual_length;
582
583 if (btusb_recv_intr(data, urb->transfer_buffer,
584 urb->actual_length) < 0) {
585 BT_ERR("%s corrupted event packet", hdev->name);
586 hdev->stat.err_rx++;
587 }
588 } else if (urb->status == -ENOENT) {
589 /* Avoid suspend failed when usb_kill_urb */
590 return;
591 }
592
593 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
594 return;
595
596 usb_mark_last_busy(data->udev);
597 usb_anchor_urb(urb, &data->intr_anchor);
598
599 err = usb_submit_urb(urb, GFP_ATOMIC);
600 if (err < 0) {
601 /* -EPERM: urb is being killed;
602 * -ENODEV: device got disconnected */
603 if (err != -EPERM && err != -ENODEV)
604 BT_ERR("%s urb %p failed to resubmit (%d)",
605 hdev->name, urb, -err);
606 usb_unanchor_urb(urb);
607 }
608 }
609
610 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
611 {
612 struct btusb_data *data = hci_get_drvdata(hdev);
613 struct urb *urb;
614 unsigned char *buf;
615 unsigned int pipe;
616 int err, size;
617
618 BT_DBG("%s", hdev->name);
619
620 if (!data->intr_ep)
621 return -ENODEV;
622
623 urb = usb_alloc_urb(0, mem_flags);
624 if (!urb)
625 return -ENOMEM;
626
627 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
628
629 buf = kmalloc(size, mem_flags);
630 if (!buf) {
631 usb_free_urb(urb);
632 return -ENOMEM;
633 }
634
635 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
636
637 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
638 btusb_intr_complete, hdev, data->intr_ep->bInterval);
639
640 urb->transfer_flags |= URB_FREE_BUFFER;
641
642 usb_anchor_urb(urb, &data->intr_anchor);
643
644 err = usb_submit_urb(urb, mem_flags);
645 if (err < 0) {
646 if (err != -EPERM && err != -ENODEV)
647 BT_ERR("%s urb %p submission failed (%d)",
648 hdev->name, urb, -err);
649 usb_unanchor_urb(urb);
650 }
651
652 usb_free_urb(urb);
653
654 return err;
655 }
656
657 static void btusb_bulk_complete(struct urb *urb)
658 {
659 struct hci_dev *hdev = urb->context;
660 struct btusb_data *data = hci_get_drvdata(hdev);
661 int err;
662
663 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
664 urb->actual_length);
665
666 if (!test_bit(HCI_RUNNING, &hdev->flags))
667 return;
668
669 if (urb->status == 0) {
670 hdev->stat.byte_rx += urb->actual_length;
671
672 if (data->recv_bulk(data, urb->transfer_buffer,
673 urb->actual_length) < 0) {
674 BT_ERR("%s corrupted ACL packet", hdev->name);
675 hdev->stat.err_rx++;
676 }
677 } else if (urb->status == -ENOENT) {
678 /* Avoid suspend failed when usb_kill_urb */
679 return;
680 }
681
682 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
683 return;
684
685 usb_anchor_urb(urb, &data->bulk_anchor);
686 usb_mark_last_busy(data->udev);
687
688 err = usb_submit_urb(urb, GFP_ATOMIC);
689 if (err < 0) {
690 /* -EPERM: urb is being killed;
691 * -ENODEV: device got disconnected */
692 if (err != -EPERM && err != -ENODEV)
693 BT_ERR("%s urb %p failed to resubmit (%d)",
694 hdev->name, urb, -err);
695 usb_unanchor_urb(urb);
696 }
697 }
698
699 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
700 {
701 struct btusb_data *data = hci_get_drvdata(hdev);
702 struct urb *urb;
703 unsigned char *buf;
704 unsigned int pipe;
705 int err, size = HCI_MAX_FRAME_SIZE;
706
707 BT_DBG("%s", hdev->name);
708
709 if (!data->bulk_rx_ep)
710 return -ENODEV;
711
712 urb = usb_alloc_urb(0, mem_flags);
713 if (!urb)
714 return -ENOMEM;
715
716 buf = kmalloc(size, mem_flags);
717 if (!buf) {
718 usb_free_urb(urb);
719 return -ENOMEM;
720 }
721
722 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
723
724 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
725 btusb_bulk_complete, hdev);
726
727 urb->transfer_flags |= URB_FREE_BUFFER;
728
729 usb_mark_last_busy(data->udev);
730 usb_anchor_urb(urb, &data->bulk_anchor);
731
732 err = usb_submit_urb(urb, mem_flags);
733 if (err < 0) {
734 if (err != -EPERM && err != -ENODEV)
735 BT_ERR("%s urb %p submission failed (%d)",
736 hdev->name, urb, -err);
737 usb_unanchor_urb(urb);
738 }
739
740 usb_free_urb(urb);
741
742 return err;
743 }
744
745 static void btusb_isoc_complete(struct urb *urb)
746 {
747 struct hci_dev *hdev = urb->context;
748 struct btusb_data *data = hci_get_drvdata(hdev);
749 int i, err;
750
751 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
752 urb->actual_length);
753
754 if (!test_bit(HCI_RUNNING, &hdev->flags))
755 return;
756
757 if (urb->status == 0) {
758 for (i = 0; i < urb->number_of_packets; i++) {
759 unsigned int offset = urb->iso_frame_desc[i].offset;
760 unsigned int length = urb->iso_frame_desc[i].actual_length;
761
762 if (urb->iso_frame_desc[i].status)
763 continue;
764
765 hdev->stat.byte_rx += length;
766
767 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
768 length) < 0) {
769 BT_ERR("%s corrupted SCO packet", hdev->name);
770 hdev->stat.err_rx++;
771 }
772 }
773 } else if (urb->status == -ENOENT) {
774 /* Avoid suspend failed when usb_kill_urb */
775 return;
776 }
777
778 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
779 return;
780
781 usb_anchor_urb(urb, &data->isoc_anchor);
782
783 err = usb_submit_urb(urb, GFP_ATOMIC);
784 if (err < 0) {
785 /* -EPERM: urb is being killed;
786 * -ENODEV: device got disconnected */
787 if (err != -EPERM && err != -ENODEV)
788 BT_ERR("%s urb %p failed to resubmit (%d)",
789 hdev->name, urb, -err);
790 usb_unanchor_urb(urb);
791 }
792 }
793
794 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
795 {
796 int i, offset = 0;
797
798 BT_DBG("len %d mtu %d", len, mtu);
799
800 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
801 i++, offset += mtu, len -= mtu) {
802 urb->iso_frame_desc[i].offset = offset;
803 urb->iso_frame_desc[i].length = mtu;
804 }
805
806 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
807 urb->iso_frame_desc[i].offset = offset;
808 urb->iso_frame_desc[i].length = len;
809 i++;
810 }
811
812 urb->number_of_packets = i;
813 }
814
815 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
816 {
817 struct btusb_data *data = hci_get_drvdata(hdev);
818 struct urb *urb;
819 unsigned char *buf;
820 unsigned int pipe;
821 int err, size;
822
823 BT_DBG("%s", hdev->name);
824
825 if (!data->isoc_rx_ep)
826 return -ENODEV;
827
828 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
829 if (!urb)
830 return -ENOMEM;
831
832 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
833 BTUSB_MAX_ISOC_FRAMES;
834
835 buf = kmalloc(size, mem_flags);
836 if (!buf) {
837 usb_free_urb(urb);
838 return -ENOMEM;
839 }
840
841 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
842
843 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
844 hdev, data->isoc_rx_ep->bInterval);
845
846 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
847
848 __fill_isoc_descriptor(urb, size,
849 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
850
851 usb_anchor_urb(urb, &data->isoc_anchor);
852
853 err = usb_submit_urb(urb, mem_flags);
854 if (err < 0) {
855 if (err != -EPERM && err != -ENODEV)
856 BT_ERR("%s urb %p submission failed (%d)",
857 hdev->name, urb, -err);
858 usb_unanchor_urb(urb);
859 }
860
861 usb_free_urb(urb);
862
863 return err;
864 }
865
866 static void btusb_tx_complete(struct urb *urb)
867 {
868 struct sk_buff *skb = urb->context;
869 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
870 struct btusb_data *data = hci_get_drvdata(hdev);
871
872 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
873 urb->actual_length);
874
875 if (!test_bit(HCI_RUNNING, &hdev->flags))
876 goto done;
877
878 if (!urb->status)
879 hdev->stat.byte_tx += urb->transfer_buffer_length;
880 else
881 hdev->stat.err_tx++;
882
883 done:
884 spin_lock(&data->txlock);
885 data->tx_in_flight--;
886 spin_unlock(&data->txlock);
887
888 kfree(urb->setup_packet);
889
890 kfree_skb(skb);
891 }
892
893 static void btusb_isoc_tx_complete(struct urb *urb)
894 {
895 struct sk_buff *skb = urb->context;
896 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
897
898 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
899 urb->actual_length);
900
901 if (!test_bit(HCI_RUNNING, &hdev->flags))
902 goto done;
903
904 if (!urb->status)
905 hdev->stat.byte_tx += urb->transfer_buffer_length;
906 else
907 hdev->stat.err_tx++;
908
909 done:
910 kfree(urb->setup_packet);
911
912 kfree_skb(skb);
913 }
914
915 static int btusb_open(struct hci_dev *hdev)
916 {
917 struct btusb_data *data = hci_get_drvdata(hdev);
918 int err;
919
920 BT_DBG("%s", hdev->name);
921
922 /* Patching USB firmware files prior to starting any URBs of HCI path
923 * It is more safe to use USB bulk channel for downloading USB patch
924 */
925 if (data->setup_on_usb) {
926 err = data->setup_on_usb(hdev);
927 if (err < 0)
928 return err;
929 }
930
931 err = usb_autopm_get_interface(data->intf);
932 if (err < 0)
933 return err;
934
935 data->intf->needs_remote_wakeup = 1;
936
937 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
938 goto done;
939
940 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
941 goto done;
942
943 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
944 if (err < 0)
945 goto failed;
946
947 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
948 if (err < 0) {
949 usb_kill_anchored_urbs(&data->intr_anchor);
950 goto failed;
951 }
952
953 set_bit(BTUSB_BULK_RUNNING, &data->flags);
954 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
955
956 done:
957 usb_autopm_put_interface(data->intf);
958 return 0;
959
960 failed:
961 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
962 clear_bit(HCI_RUNNING, &hdev->flags);
963 usb_autopm_put_interface(data->intf);
964 return err;
965 }
966
967 static void btusb_stop_traffic(struct btusb_data *data)
968 {
969 usb_kill_anchored_urbs(&data->intr_anchor);
970 usb_kill_anchored_urbs(&data->bulk_anchor);
971 usb_kill_anchored_urbs(&data->isoc_anchor);
972 }
973
974 static int btusb_close(struct hci_dev *hdev)
975 {
976 struct btusb_data *data = hci_get_drvdata(hdev);
977 int err;
978
979 BT_DBG("%s", hdev->name);
980
981 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
982 return 0;
983
984 cancel_work_sync(&data->work);
985 cancel_work_sync(&data->waker);
986
987 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
988 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
989 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
990
991 btusb_stop_traffic(data);
992 btusb_free_frags(data);
993
994 err = usb_autopm_get_interface(data->intf);
995 if (err < 0)
996 goto failed;
997
998 data->intf->needs_remote_wakeup = 0;
999 usb_autopm_put_interface(data->intf);
1000
1001 failed:
1002 usb_scuttle_anchored_urbs(&data->deferred);
1003 return 0;
1004 }
1005
1006 static int btusb_flush(struct hci_dev *hdev)
1007 {
1008 struct btusb_data *data = hci_get_drvdata(hdev);
1009
1010 BT_DBG("%s", hdev->name);
1011
1012 usb_kill_anchored_urbs(&data->tx_anchor);
1013 btusb_free_frags(data);
1014
1015 return 0;
1016 }
1017
1018 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1019 {
1020 struct btusb_data *data = hci_get_drvdata(hdev);
1021 struct usb_ctrlrequest *dr;
1022 struct urb *urb;
1023 unsigned int pipe;
1024
1025 urb = usb_alloc_urb(0, GFP_KERNEL);
1026 if (!urb)
1027 return ERR_PTR(-ENOMEM);
1028
1029 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1030 if (!dr) {
1031 usb_free_urb(urb);
1032 return ERR_PTR(-ENOMEM);
1033 }
1034
1035 dr->bRequestType = data->cmdreq_type;
1036 dr->bRequest = data->cmdreq;
1037 dr->wIndex = 0;
1038 dr->wValue = 0;
1039 dr->wLength = __cpu_to_le16(skb->len);
1040
1041 pipe = usb_sndctrlpipe(data->udev, 0x00);
1042
1043 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1044 skb->data, skb->len, btusb_tx_complete, skb);
1045
1046 skb->dev = (void *)hdev;
1047
1048 return urb;
1049 }
1050
1051 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1052 {
1053 struct btusb_data *data = hci_get_drvdata(hdev);
1054 struct urb *urb;
1055 unsigned int pipe;
1056
1057 if (!data->bulk_tx_ep)
1058 return ERR_PTR(-ENODEV);
1059
1060 urb = usb_alloc_urb(0, GFP_KERNEL);
1061 if (!urb)
1062 return ERR_PTR(-ENOMEM);
1063
1064 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1065
1066 usb_fill_bulk_urb(urb, data->udev, pipe,
1067 skb->data, skb->len, btusb_tx_complete, skb);
1068
1069 skb->dev = (void *)hdev;
1070
1071 return urb;
1072 }
1073
1074 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1075 {
1076 struct btusb_data *data = hci_get_drvdata(hdev);
1077 struct urb *urb;
1078 unsigned int pipe;
1079
1080 if (!data->isoc_tx_ep)
1081 return ERR_PTR(-ENODEV);
1082
1083 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1084 if (!urb)
1085 return ERR_PTR(-ENOMEM);
1086
1087 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1088
1089 usb_fill_int_urb(urb, data->udev, pipe,
1090 skb->data, skb->len, btusb_isoc_tx_complete,
1091 skb, data->isoc_tx_ep->bInterval);
1092
1093 urb->transfer_flags = URB_ISO_ASAP;
1094
1095 __fill_isoc_descriptor(urb, skb->len,
1096 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1097
1098 skb->dev = (void *)hdev;
1099
1100 return urb;
1101 }
1102
1103 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1104 {
1105 struct btusb_data *data = hci_get_drvdata(hdev);
1106 int err;
1107
1108 usb_anchor_urb(urb, &data->tx_anchor);
1109
1110 err = usb_submit_urb(urb, GFP_KERNEL);
1111 if (err < 0) {
1112 if (err != -EPERM && err != -ENODEV)
1113 BT_ERR("%s urb %p submission failed (%d)",
1114 hdev->name, urb, -err);
1115 kfree(urb->setup_packet);
1116 usb_unanchor_urb(urb);
1117 } else {
1118 usb_mark_last_busy(data->udev);
1119 }
1120
1121 usb_free_urb(urb);
1122 return err;
1123 }
1124
1125 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1126 {
1127 struct btusb_data *data = hci_get_drvdata(hdev);
1128 unsigned long flags;
1129 bool suspending;
1130
1131 spin_lock_irqsave(&data->txlock, flags);
1132 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1133 if (!suspending)
1134 data->tx_in_flight++;
1135 spin_unlock_irqrestore(&data->txlock, flags);
1136
1137 if (!suspending)
1138 return submit_tx_urb(hdev, urb);
1139
1140 usb_anchor_urb(urb, &data->deferred);
1141 schedule_work(&data->waker);
1142
1143 usb_free_urb(urb);
1144 return 0;
1145 }
1146
1147 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1148 {
1149 struct urb *urb;
1150
1151 BT_DBG("%s", hdev->name);
1152
1153 if (!test_bit(HCI_RUNNING, &hdev->flags))
1154 return -EBUSY;
1155
1156 switch (bt_cb(skb)->pkt_type) {
1157 case HCI_COMMAND_PKT:
1158 urb = alloc_ctrl_urb(hdev, skb);
1159 if (IS_ERR(urb))
1160 return PTR_ERR(urb);
1161
1162 hdev->stat.cmd_tx++;
1163 return submit_or_queue_tx_urb(hdev, urb);
1164
1165 case HCI_ACLDATA_PKT:
1166 urb = alloc_bulk_urb(hdev, skb);
1167 if (IS_ERR(urb))
1168 return PTR_ERR(urb);
1169
1170 hdev->stat.acl_tx++;
1171 return submit_or_queue_tx_urb(hdev, urb);
1172
1173 case HCI_SCODATA_PKT:
1174 if (hci_conn_num(hdev, SCO_LINK) < 1)
1175 return -ENODEV;
1176
1177 urb = alloc_isoc_urb(hdev, skb);
1178 if (IS_ERR(urb))
1179 return PTR_ERR(urb);
1180
1181 hdev->stat.sco_tx++;
1182 return submit_tx_urb(hdev, urb);
1183 }
1184
1185 return -EILSEQ;
1186 }
1187
1188 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1189 {
1190 struct btusb_data *data = hci_get_drvdata(hdev);
1191
1192 BT_DBG("%s evt %d", hdev->name, evt);
1193
1194 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1195 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1196 schedule_work(&data->work);
1197 }
1198 }
1199
1200 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1201 {
1202 struct btusb_data *data = hci_get_drvdata(hdev);
1203 struct usb_interface *intf = data->isoc;
1204 struct usb_endpoint_descriptor *ep_desc;
1205 int i, err;
1206
1207 if (!data->isoc)
1208 return -ENODEV;
1209
1210 err = usb_set_interface(data->udev, 1, altsetting);
1211 if (err < 0) {
1212 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1213 return err;
1214 }
1215
1216 data->isoc_altsetting = altsetting;
1217
1218 data->isoc_tx_ep = NULL;
1219 data->isoc_rx_ep = NULL;
1220
1221 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1222 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1223
1224 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1225 data->isoc_tx_ep = ep_desc;
1226 continue;
1227 }
1228
1229 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1230 data->isoc_rx_ep = ep_desc;
1231 continue;
1232 }
1233 }
1234
1235 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1236 BT_ERR("%s invalid SCO descriptors", hdev->name);
1237 return -ENODEV;
1238 }
1239
1240 return 0;
1241 }
1242
1243 static void btusb_work(struct work_struct *work)
1244 {
1245 struct btusb_data *data = container_of(work, struct btusb_data, work);
1246 struct hci_dev *hdev = data->hdev;
1247 int new_alts;
1248 int err;
1249
1250 if (data->sco_num > 0) {
1251 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1252 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1253 if (err < 0) {
1254 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1255 usb_kill_anchored_urbs(&data->isoc_anchor);
1256 return;
1257 }
1258
1259 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1260 }
1261
1262 if (hdev->voice_setting & 0x0020) {
1263 static const int alts[3] = { 2, 4, 5 };
1264
1265 new_alts = alts[data->sco_num - 1];
1266 } else {
1267 new_alts = data->sco_num;
1268 }
1269
1270 if (data->isoc_altsetting != new_alts) {
1271 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1272 usb_kill_anchored_urbs(&data->isoc_anchor);
1273
1274 if (__set_isoc_interface(hdev, new_alts) < 0)
1275 return;
1276 }
1277
1278 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1279 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1280 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1281 else
1282 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1283 }
1284 } else {
1285 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1286 usb_kill_anchored_urbs(&data->isoc_anchor);
1287
1288 __set_isoc_interface(hdev, 0);
1289 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1290 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1291 }
1292 }
1293
1294 static void btusb_waker(struct work_struct *work)
1295 {
1296 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1297 int err;
1298
1299 err = usb_autopm_get_interface(data->intf);
1300 if (err < 0)
1301 return;
1302
1303 usb_autopm_put_interface(data->intf);
1304 }
1305
1306 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1307 {
1308 struct sk_buff *skb;
1309 u8 val = 0x00;
1310
1311 BT_DBG("%s", hdev->name);
1312
1313 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1314 if (IS_ERR(skb))
1315 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1316 else
1317 kfree_skb(skb);
1318
1319 return 0;
1320 }
1321
1322 static int btusb_setup_csr(struct hci_dev *hdev)
1323 {
1324 struct hci_rp_read_local_version *rp;
1325 struct sk_buff *skb;
1326
1327 BT_DBG("%s", hdev->name);
1328
1329 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1330 HCI_INIT_TIMEOUT);
1331 if (IS_ERR(skb)) {
1332 int err = PTR_ERR(skb);
1333 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1334 return err;
1335 }
1336
1337 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1338 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1339 kfree_skb(skb);
1340 return -EIO;
1341 }
1342
1343 rp = (struct hci_rp_read_local_version *)skb->data;
1344
1345 if (le16_to_cpu(rp->manufacturer) != 10) {
1346 /* Clear the reset quirk since this is not an actual
1347 * early Bluetooth 1.1 device from CSR.
1348 */
1349 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1350
1351 /* These fake CSR controllers have all a broken
1352 * stored link key handling and so just disable it.
1353 */
1354 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1355 }
1356
1357 kfree_skb(skb);
1358
1359 return 0;
1360 }
1361
1362 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1363 struct intel_version *ver)
1364 {
1365 const struct firmware *fw;
1366 char fwname[64];
1367 int ret;
1368
1369 snprintf(fwname, sizeof(fwname),
1370 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1371 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1372 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1373 ver->fw_build_ww, ver->fw_build_yy);
1374
1375 ret = request_firmware(&fw, fwname, &hdev->dev);
1376 if (ret < 0) {
1377 if (ret == -EINVAL) {
1378 BT_ERR("%s Intel firmware file request failed (%d)",
1379 hdev->name, ret);
1380 return NULL;
1381 }
1382
1383 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1384 hdev->name, fwname, ret);
1385
1386 /* If the correct firmware patch file is not found, use the
1387 * default firmware patch file instead
1388 */
1389 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1390 ver->hw_platform, ver->hw_variant);
1391 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1392 BT_ERR("%s failed to open default Intel fw file: %s",
1393 hdev->name, fwname);
1394 return NULL;
1395 }
1396 }
1397
1398 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1399
1400 return fw;
1401 }
1402
1403 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1404 const struct firmware *fw,
1405 const u8 **fw_ptr, int *disable_patch)
1406 {
1407 struct sk_buff *skb;
1408 struct hci_command_hdr *cmd;
1409 const u8 *cmd_param;
1410 struct hci_event_hdr *evt = NULL;
1411 const u8 *evt_param = NULL;
1412 int remain = fw->size - (*fw_ptr - fw->data);
1413
1414 /* The first byte indicates the types of the patch command or event.
1415 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1416 * in the current firmware buffer doesn't start with 0x01 or
1417 * the size of remain buffer is smaller than HCI command header,
1418 * the firmware file is corrupted and it should stop the patching
1419 * process.
1420 */
1421 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1422 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1423 return -EINVAL;
1424 }
1425 (*fw_ptr)++;
1426 remain--;
1427
1428 cmd = (struct hci_command_hdr *)(*fw_ptr);
1429 *fw_ptr += sizeof(*cmd);
1430 remain -= sizeof(*cmd);
1431
1432 /* Ensure that the remain firmware data is long enough than the length
1433 * of command parameter. If not, the firmware file is corrupted.
1434 */
1435 if (remain < cmd->plen) {
1436 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1437 return -EFAULT;
1438 }
1439
1440 /* If there is a command that loads a patch in the firmware
1441 * file, then enable the patch upon success, otherwise just
1442 * disable the manufacturer mode, for example patch activation
1443 * is not required when the default firmware patch file is used
1444 * because there are no patch data to load.
1445 */
1446 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1447 *disable_patch = 0;
1448
1449 cmd_param = *fw_ptr;
1450 *fw_ptr += cmd->plen;
1451 remain -= cmd->plen;
1452
1453 /* This reads the expected events when the above command is sent to the
1454 * device. Some vendor commands expects more than one events, for
1455 * example command status event followed by vendor specific event.
1456 * For this case, it only keeps the last expected event. so the command
1457 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1458 * last expected event.
1459 */
1460 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1461 (*fw_ptr)++;
1462 remain--;
1463
1464 evt = (struct hci_event_hdr *)(*fw_ptr);
1465 *fw_ptr += sizeof(*evt);
1466 remain -= sizeof(*evt);
1467
1468 if (remain < evt->plen) {
1469 BT_ERR("%s Intel fw corrupted: invalid evt len",
1470 hdev->name);
1471 return -EFAULT;
1472 }
1473
1474 evt_param = *fw_ptr;
1475 *fw_ptr += evt->plen;
1476 remain -= evt->plen;
1477 }
1478
1479 /* Every HCI commands in the firmware file has its correspond event.
1480 * If event is not found or remain is smaller than zero, the firmware
1481 * file is corrupted.
1482 */
1483 if (!evt || !evt_param || remain < 0) {
1484 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1485 return -EFAULT;
1486 }
1487
1488 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1489 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1490 if (IS_ERR(skb)) {
1491 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1492 hdev->name, cmd->opcode, PTR_ERR(skb));
1493 return PTR_ERR(skb);
1494 }
1495
1496 /* It ensures that the returned event matches the event data read from
1497 * the firmware file. At fist, it checks the length and then
1498 * the contents of the event.
1499 */
1500 if (skb->len != evt->plen) {
1501 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1502 le16_to_cpu(cmd->opcode));
1503 kfree_skb(skb);
1504 return -EFAULT;
1505 }
1506
1507 if (memcmp(skb->data, evt_param, evt->plen)) {
1508 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1509 hdev->name, le16_to_cpu(cmd->opcode));
1510 kfree_skb(skb);
1511 return -EFAULT;
1512 }
1513 kfree_skb(skb);
1514
1515 return 0;
1516 }
1517
1518 static int btusb_setup_intel(struct hci_dev *hdev)
1519 {
1520 struct sk_buff *skb;
1521 const struct firmware *fw;
1522 const u8 *fw_ptr;
1523 int disable_patch;
1524 struct intel_version *ver;
1525
1526 const u8 mfg_enable[] = { 0x01, 0x00 };
1527 const u8 mfg_disable[] = { 0x00, 0x00 };
1528 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1529 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1530
1531 BT_DBG("%s", hdev->name);
1532
1533 /* The controller has a bug with the first HCI command sent to it
1534 * returning number of completed commands as zero. This would stall the
1535 * command processing in the Bluetooth core.
1536 *
1537 * As a workaround, send HCI Reset command first which will reset the
1538 * number of completed commands and allow normal command processing
1539 * from now on.
1540 */
1541 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1542 if (IS_ERR(skb)) {
1543 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1544 hdev->name, PTR_ERR(skb));
1545 return PTR_ERR(skb);
1546 }
1547 kfree_skb(skb);
1548
1549 /* Read Intel specific controller version first to allow selection of
1550 * which firmware file to load.
1551 *
1552 * The returned information are hardware variant and revision plus
1553 * firmware variant, revision and build number.
1554 */
1555 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1556 if (IS_ERR(skb)) {
1557 BT_ERR("%s reading Intel fw version command failed (%ld)",
1558 hdev->name, PTR_ERR(skb));
1559 return PTR_ERR(skb);
1560 }
1561
1562 if (skb->len != sizeof(*ver)) {
1563 BT_ERR("%s Intel version event length mismatch", hdev->name);
1564 kfree_skb(skb);
1565 return -EIO;
1566 }
1567
1568 ver = (struct intel_version *)skb->data;
1569
1570 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1571 hdev->name, ver->hw_platform, ver->hw_variant,
1572 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1573 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1574 ver->fw_patch_num);
1575
1576 /* fw_patch_num indicates the version of patch the device currently
1577 * have. If there is no patch data in the device, it is always 0x00.
1578 * So, if it is other than 0x00, no need to patch the deivce again.
1579 */
1580 if (ver->fw_patch_num) {
1581 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1582 hdev->name, ver->fw_patch_num);
1583 kfree_skb(skb);
1584 btintel_check_bdaddr(hdev);
1585 return 0;
1586 }
1587
1588 /* Opens the firmware patch file based on the firmware version read
1589 * from the controller. If it fails to open the matching firmware
1590 * patch file, it tries to open the default firmware patch file.
1591 * If no patch file is found, allow the device to operate without
1592 * a patch.
1593 */
1594 fw = btusb_setup_intel_get_fw(hdev, ver);
1595 if (!fw) {
1596 kfree_skb(skb);
1597 btintel_check_bdaddr(hdev);
1598 return 0;
1599 }
1600 fw_ptr = fw->data;
1601
1602 kfree_skb(skb);
1603
1604 /* This Intel specific command enables the manufacturer mode of the
1605 * controller.
1606 *
1607 * Only while this mode is enabled, the driver can download the
1608 * firmware patch data and configuration parameters.
1609 */
1610 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1611 if (IS_ERR(skb)) {
1612 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1613 hdev->name, PTR_ERR(skb));
1614 release_firmware(fw);
1615 return PTR_ERR(skb);
1616 }
1617
1618 kfree_skb(skb);
1619
1620 disable_patch = 1;
1621
1622 /* The firmware data file consists of list of Intel specific HCI
1623 * commands and its expected events. The first byte indicates the
1624 * type of the message, either HCI command or HCI event.
1625 *
1626 * It reads the command and its expected event from the firmware file,
1627 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1628 * the returned event is compared with the event read from the firmware
1629 * file and it will continue until all the messages are downloaded to
1630 * the controller.
1631 *
1632 * Once the firmware patching is completed successfully,
1633 * the manufacturer mode is disabled with reset and activating the
1634 * downloaded patch.
1635 *
1636 * If the firmware patching fails, the manufacturer mode is
1637 * disabled with reset and deactivating the patch.
1638 *
1639 * If the default patch file is used, no reset is done when disabling
1640 * the manufacturer.
1641 */
1642 while (fw->size > fw_ptr - fw->data) {
1643 int ret;
1644
1645 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1646 &disable_patch);
1647 if (ret < 0)
1648 goto exit_mfg_deactivate;
1649 }
1650
1651 release_firmware(fw);
1652
1653 if (disable_patch)
1654 goto exit_mfg_disable;
1655
1656 /* Patching completed successfully and disable the manufacturer mode
1657 * with reset and activate the downloaded firmware patches.
1658 */
1659 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1660 mfg_reset_activate, HCI_INIT_TIMEOUT);
1661 if (IS_ERR(skb)) {
1662 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1663 hdev->name, PTR_ERR(skb));
1664 return PTR_ERR(skb);
1665 }
1666 kfree_skb(skb);
1667
1668 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1669 hdev->name);
1670
1671 btintel_check_bdaddr(hdev);
1672 return 0;
1673
1674 exit_mfg_disable:
1675 /* Disable the manufacturer mode without reset */
1676 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1677 HCI_INIT_TIMEOUT);
1678 if (IS_ERR(skb)) {
1679 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1680 hdev->name, PTR_ERR(skb));
1681 return PTR_ERR(skb);
1682 }
1683 kfree_skb(skb);
1684
1685 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1686
1687 btintel_check_bdaddr(hdev);
1688 return 0;
1689
1690 exit_mfg_deactivate:
1691 release_firmware(fw);
1692
1693 /* Patching failed. Disable the manufacturer mode with reset and
1694 * deactivate the downloaded firmware patches.
1695 */
1696 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1697 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1698 if (IS_ERR(skb)) {
1699 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1700 hdev->name, PTR_ERR(skb));
1701 return PTR_ERR(skb);
1702 }
1703 kfree_skb(skb);
1704
1705 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1706 hdev->name);
1707
1708 btintel_check_bdaddr(hdev);
1709 return 0;
1710 }
1711
1712 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1713 {
1714 struct sk_buff *skb;
1715 struct hci_event_hdr *hdr;
1716 struct hci_ev_cmd_complete *evt;
1717
1718 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1719 if (!skb)
1720 return -ENOMEM;
1721
1722 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1723 hdr->evt = HCI_EV_CMD_COMPLETE;
1724 hdr->plen = sizeof(*evt) + 1;
1725
1726 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1727 evt->ncmd = 0x01;
1728 evt->opcode = cpu_to_le16(opcode);
1729
1730 *skb_put(skb, 1) = 0x00;
1731
1732 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1733
1734 return hci_recv_frame(hdev, skb);
1735 }
1736
1737 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1738 int count)
1739 {
1740 /* When the device is in bootloader mode, then it can send
1741 * events via the bulk endpoint. These events are treated the
1742 * same way as the ones received from the interrupt endpoint.
1743 */
1744 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1745 return btusb_recv_intr(data, buffer, count);
1746
1747 return btusb_recv_bulk(data, buffer, count);
1748 }
1749
1750 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1751 unsigned int len)
1752 {
1753 const struct intel_bootup *evt = ptr;
1754
1755 if (len != sizeof(*evt))
1756 return;
1757
1758 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1759 smp_mb__after_atomic();
1760 wake_up_bit(&data->flags, BTUSB_BOOTING);
1761 }
1762 }
1763
1764 static void btusb_intel_secure_send_result(struct btusb_data *data,
1765 const void *ptr, unsigned int len)
1766 {
1767 const struct intel_secure_send_result *evt = ptr;
1768
1769 if (len != sizeof(*evt))
1770 return;
1771
1772 if (evt->result)
1773 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1774
1775 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1776 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1777 smp_mb__after_atomic();
1778 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1779 }
1780 }
1781
1782 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1783 {
1784 struct btusb_data *data = hci_get_drvdata(hdev);
1785
1786 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1787 struct hci_event_hdr *hdr = (void *)skb->data;
1788
1789 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1790 hdr->plen > 0) {
1791 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1792 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1793
1794 switch (skb->data[2]) {
1795 case 0x02:
1796 /* When switching to the operational firmware
1797 * the device sends a vendor specific event
1798 * indicating that the bootup completed.
1799 */
1800 btusb_intel_bootup(data, ptr, len);
1801 break;
1802 case 0x06:
1803 /* When the firmware loading completes the
1804 * device sends out a vendor specific event
1805 * indicating the result of the firmware
1806 * loading.
1807 */
1808 btusb_intel_secure_send_result(data, ptr, len);
1809 break;
1810 }
1811 }
1812 }
1813
1814 return hci_recv_frame(hdev, skb);
1815 }
1816
1817 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1818 {
1819 struct btusb_data *data = hci_get_drvdata(hdev);
1820 struct urb *urb;
1821
1822 BT_DBG("%s", hdev->name);
1823
1824 if (!test_bit(HCI_RUNNING, &hdev->flags))
1825 return -EBUSY;
1826
1827 switch (bt_cb(skb)->pkt_type) {
1828 case HCI_COMMAND_PKT:
1829 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1830 struct hci_command_hdr *cmd = (void *)skb->data;
1831 __u16 opcode = le16_to_cpu(cmd->opcode);
1832
1833 /* When in bootloader mode and the command 0xfc09
1834 * is received, it needs to be send down the
1835 * bulk endpoint. So allocate a bulk URB instead.
1836 */
1837 if (opcode == 0xfc09)
1838 urb = alloc_bulk_urb(hdev, skb);
1839 else
1840 urb = alloc_ctrl_urb(hdev, skb);
1841
1842 /* When the 0xfc01 command is issued to boot into
1843 * the operational firmware, it will actually not
1844 * send a command complete event. To keep the flow
1845 * control working inject that event here.
1846 */
1847 if (opcode == 0xfc01)
1848 inject_cmd_complete(hdev, opcode);
1849 } else {
1850 urb = alloc_ctrl_urb(hdev, skb);
1851 }
1852 if (IS_ERR(urb))
1853 return PTR_ERR(urb);
1854
1855 hdev->stat.cmd_tx++;
1856 return submit_or_queue_tx_urb(hdev, urb);
1857
1858 case HCI_ACLDATA_PKT:
1859 urb = alloc_bulk_urb(hdev, skb);
1860 if (IS_ERR(urb))
1861 return PTR_ERR(urb);
1862
1863 hdev->stat.acl_tx++;
1864 return submit_or_queue_tx_urb(hdev, urb);
1865
1866 case HCI_SCODATA_PKT:
1867 if (hci_conn_num(hdev, SCO_LINK) < 1)
1868 return -ENODEV;
1869
1870 urb = alloc_isoc_urb(hdev, skb);
1871 if (IS_ERR(urb))
1872 return PTR_ERR(urb);
1873
1874 hdev->stat.sco_tx++;
1875 return submit_tx_urb(hdev, urb);
1876 }
1877
1878 return -EILSEQ;
1879 }
1880
1881 static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
1882 u32 plen, const void *param)
1883 {
1884 while (plen > 0) {
1885 struct sk_buff *skb;
1886 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
1887
1888 cmd_param[0] = fragment_type;
1889 memcpy(cmd_param + 1, param, fragment_len);
1890
1891 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
1892 cmd_param, HCI_INIT_TIMEOUT);
1893 if (IS_ERR(skb))
1894 return PTR_ERR(skb);
1895
1896 kfree_skb(skb);
1897
1898 plen -= fragment_len;
1899 param += fragment_len;
1900 }
1901
1902 return 0;
1903 }
1904
1905 static void btusb_intel_version_info(struct hci_dev *hdev,
1906 struct intel_version *ver)
1907 {
1908 const char *variant;
1909
1910 switch (ver->fw_variant) {
1911 case 0x06:
1912 variant = "Bootloader";
1913 break;
1914 case 0x23:
1915 variant = "Firmware";
1916 break;
1917 default:
1918 return;
1919 }
1920
1921 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
1922 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
1923 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
1924 }
1925
1926 static int btusb_setup_intel_new(struct hci_dev *hdev)
1927 {
1928 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1929 0x00, 0x08, 0x04, 0x00 };
1930 struct btusb_data *data = hci_get_drvdata(hdev);
1931 struct sk_buff *skb;
1932 struct intel_version *ver;
1933 struct intel_boot_params *params;
1934 const struct firmware *fw;
1935 const u8 *fw_ptr;
1936 u32 frag_len;
1937 char fwname[64];
1938 ktime_t calltime, delta, rettime;
1939 unsigned long long duration;
1940 int err;
1941
1942 BT_DBG("%s", hdev->name);
1943
1944 calltime = ktime_get();
1945
1946 /* Read the Intel version information to determine if the device
1947 * is in bootloader mode or if it already has operational firmware
1948 * loaded.
1949 */
1950 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1951 if (IS_ERR(skb)) {
1952 BT_ERR("%s: Reading Intel version information failed (%ld)",
1953 hdev->name, PTR_ERR(skb));
1954 return PTR_ERR(skb);
1955 }
1956
1957 if (skb->len != sizeof(*ver)) {
1958 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1959 kfree_skb(skb);
1960 return -EILSEQ;
1961 }
1962
1963 ver = (struct intel_version *)skb->data;
1964
1965 /* The hardware platform number has a fixed value of 0x37 and
1966 * for now only accept this single value.
1967 */
1968 if (ver->hw_platform != 0x37) {
1969 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1970 hdev->name, ver->hw_platform);
1971 kfree_skb(skb);
1972 return -EINVAL;
1973 }
1974
1975 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1976 * supported by this firmware loading method. This check has been
1977 * put in place to ensure correct forward compatibility options
1978 * when newer hardware variants come along.
1979 */
1980 if (ver->hw_variant != 0x0b) {
1981 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1982 hdev->name, ver->hw_variant);
1983 kfree_skb(skb);
1984 return -EINVAL;
1985 }
1986
1987 btusb_intel_version_info(hdev, ver);
1988
1989 /* The firmware variant determines if the device is in bootloader
1990 * mode or is running operational firmware. The value 0x06 identifies
1991 * the bootloader and the value 0x23 identifies the operational
1992 * firmware.
1993 *
1994 * When the operational firmware is already present, then only
1995 * the check for valid Bluetooth device address is needed. This
1996 * determines if the device will be added as configured or
1997 * unconfigured controller.
1998 *
1999 * It is not possible to use the Secure Boot Parameters in this
2000 * case since that command is only available in bootloader mode.
2001 */
2002 if (ver->fw_variant == 0x23) {
2003 kfree_skb(skb);
2004 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2005 btintel_check_bdaddr(hdev);
2006 return 0;
2007 }
2008
2009 /* If the device is not in bootloader mode, then the only possible
2010 * choice is to return an error and abort the device initialization.
2011 */
2012 if (ver->fw_variant != 0x06) {
2013 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2014 hdev->name, ver->fw_variant);
2015 kfree_skb(skb);
2016 return -ENODEV;
2017 }
2018
2019 kfree_skb(skb);
2020
2021 /* Read the secure boot parameters to identify the operating
2022 * details of the bootloader.
2023 */
2024 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2025 if (IS_ERR(skb)) {
2026 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2027 hdev->name, PTR_ERR(skb));
2028 return PTR_ERR(skb);
2029 }
2030
2031 if (skb->len != sizeof(*params)) {
2032 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2033 kfree_skb(skb);
2034 return -EILSEQ;
2035 }
2036
2037 params = (struct intel_boot_params *)skb->data;
2038
2039 BT_INFO("%s: Device revision is %u", hdev->name,
2040 le16_to_cpu(params->dev_revid));
2041
2042 BT_INFO("%s: Secure boot is %s", hdev->name,
2043 params->secure_boot ? "enabled" : "disabled");
2044
2045 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2046 params->min_fw_build_nn, params->min_fw_build_cw,
2047 2000 + params->min_fw_build_yy);
2048
2049 /* It is required that every single firmware fragment is acknowledged
2050 * with a command complete event. If the boot parameters indicate
2051 * that this bootloader does not send them, then abort the setup.
2052 */
2053 if (params->limited_cce != 0x00) {
2054 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2055 hdev->name, params->limited_cce);
2056 kfree_skb(skb);
2057 return -EINVAL;
2058 }
2059
2060 /* If the OTP has no valid Bluetooth device address, then there will
2061 * also be no valid address for the operational firmware.
2062 */
2063 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2064 BT_INFO("%s: No device address configured", hdev->name);
2065 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2066 }
2067
2068 /* With this Intel bootloader only the hardware variant and device
2069 * revision information are used to select the right firmware.
2070 *
2071 * Currently this bootloader support is limited to hardware variant
2072 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2073 */
2074 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2075 le16_to_cpu(params->dev_revid));
2076
2077 err = request_firmware(&fw, fwname, &hdev->dev);
2078 if (err < 0) {
2079 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2080 hdev->name, err);
2081 kfree_skb(skb);
2082 return err;
2083 }
2084
2085 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2086
2087 /* Save the DDC file name for later use to apply once the firmware
2088 * downloading is done.
2089 */
2090 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2091 le16_to_cpu(params->dev_revid));
2092
2093 kfree_skb(skb);
2094
2095 if (fw->size < 644) {
2096 BT_ERR("%s: Invalid size of firmware file (%zu)",
2097 hdev->name, fw->size);
2098 err = -EBADF;
2099 goto done;
2100 }
2101
2102 set_bit(BTUSB_DOWNLOADING, &data->flags);
2103
2104 /* Start the firmware download transaction with the Init fragment
2105 * represented by the 128 bytes of CSS header.
2106 */
2107 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
2108 if (err < 0) {
2109 BT_ERR("%s: Failed to send firmware header (%d)",
2110 hdev->name, err);
2111 goto done;
2112 }
2113
2114 /* Send the 256 bytes of public key information from the firmware
2115 * as the PKey fragment.
2116 */
2117 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
2118 if (err < 0) {
2119 BT_ERR("%s: Failed to send firmware public key (%d)",
2120 hdev->name, err);
2121 goto done;
2122 }
2123
2124 /* Send the 256 bytes of signature information from the firmware
2125 * as the Sign fragment.
2126 */
2127 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
2128 if (err < 0) {
2129 BT_ERR("%s: Failed to send firmware signature (%d)",
2130 hdev->name, err);
2131 goto done;
2132 }
2133
2134 fw_ptr = fw->data + 644;
2135 frag_len = 0;
2136
2137 while (fw_ptr - fw->data < fw->size) {
2138 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2139
2140 frag_len += sizeof(*cmd) + cmd->plen;
2141
2142 /* The paramter length of the secure send command requires
2143 * a 4 byte alignment. It happens so that the firmware file
2144 * contains proper Intel_NOP commands to align the fragments
2145 * as needed.
2146 *
2147 * Send set of commands with 4 byte alignment from the
2148 * firmware data buffer as a single Data fragement.
2149 */
2150 if (!(frag_len % 4)) {
2151 err = btusb_intel_secure_send(hdev, 0x01, frag_len,
2152 fw_ptr);
2153 if (err < 0) {
2154 BT_ERR("%s: Failed to send firmware data (%d)",
2155 hdev->name, err);
2156 goto done;
2157 }
2158
2159 fw_ptr += frag_len;
2160 frag_len = 0;
2161 }
2162 }
2163
2164 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2165
2166 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2167
2168 /* Before switching the device into operational mode and with that
2169 * booting the loaded firmware, wait for the bootloader notification
2170 * that all fragments have been successfully received.
2171 *
2172 * When the event processing receives the notification, then the
2173 * BTUSB_DOWNLOADING flag will be cleared.
2174 *
2175 * The firmware loading should not take longer than 5 seconds
2176 * and thus just timeout if that happens and fail the setup
2177 * of this device.
2178 */
2179 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2180 TASK_INTERRUPTIBLE,
2181 msecs_to_jiffies(5000));
2182 if (err == 1) {
2183 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2184 err = -EINTR;
2185 goto done;
2186 }
2187
2188 if (err) {
2189 BT_ERR("%s: Firmware loading timeout", hdev->name);
2190 err = -ETIMEDOUT;
2191 goto done;
2192 }
2193
2194 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2195 BT_ERR("%s: Firmware loading failed", hdev->name);
2196 err = -ENOEXEC;
2197 goto done;
2198 }
2199
2200 rettime = ktime_get();
2201 delta = ktime_sub(rettime, calltime);
2202 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2203
2204 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2205
2206 done:
2207 release_firmware(fw);
2208
2209 if (err < 0)
2210 return err;
2211
2212 calltime = ktime_get();
2213
2214 set_bit(BTUSB_BOOTING, &data->flags);
2215
2216 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2217 HCI_INIT_TIMEOUT);
2218 if (IS_ERR(skb))
2219 return PTR_ERR(skb);
2220
2221 kfree_skb(skb);
2222
2223 /* The bootloader will not indicate when the device is ready. This
2224 * is done by the operational firmware sending bootup notification.
2225 *
2226 * Booting into operational firmware should not take longer than
2227 * 1 second. However if that happens, then just fail the setup
2228 * since something went wrong.
2229 */
2230 BT_INFO("%s: Waiting for device to boot", hdev->name);
2231
2232 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2233 TASK_INTERRUPTIBLE,
2234 msecs_to_jiffies(1000));
2235
2236 if (err == 1) {
2237 BT_ERR("%s: Device boot interrupted", hdev->name);
2238 return -EINTR;
2239 }
2240
2241 if (err) {
2242 BT_ERR("%s: Device boot timeout", hdev->name);
2243 return -ETIMEDOUT;
2244 }
2245
2246 rettime = ktime_get();
2247 delta = ktime_sub(rettime, calltime);
2248 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2249
2250 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2251
2252 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2253
2254 /* Once the device is running in operational mode, it needs to apply
2255 * the device configuration (DDC) parameters.
2256 *
2257 * The device can work without DDC parameters, so even if it fails
2258 * to load the file, no need to fail the setup.
2259 */
2260 err = request_firmware_direct(&fw, fwname, &hdev->dev);
2261 if (err < 0)
2262 return 0;
2263
2264 BT_INFO("%s: Found Intel DDC parameters: %s", hdev->name, fwname);
2265
2266 fw_ptr = fw->data;
2267
2268 /* DDC file contains one or more DDC structure which has
2269 * Length (1 byte), DDC ID (2 bytes), and DDC value (Length - 2).
2270 */
2271 while (fw->size > fw_ptr - fw->data) {
2272 u8 cmd_plen = fw_ptr[0] + sizeof(u8);
2273
2274 skb = __hci_cmd_sync(hdev, 0xfc8b, cmd_plen, fw_ptr,
2275 HCI_INIT_TIMEOUT);
2276 if (IS_ERR(skb)) {
2277 BT_ERR("%s: Failed to send Intel_Write_DDC (%ld)",
2278 hdev->name, PTR_ERR(skb));
2279 release_firmware(fw);
2280 return PTR_ERR(skb);
2281 }
2282
2283 fw_ptr += cmd_plen;
2284 kfree_skb(skb);
2285 }
2286
2287 release_firmware(fw);
2288
2289 BT_INFO("%s: Applying Intel DDC parameters completed", hdev->name);
2290
2291 return 0;
2292 }
2293
2294 static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
2295 {
2296 struct sk_buff *skb;
2297 u8 type = 0x00;
2298
2299 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
2300
2301 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2302 if (IS_ERR(skb)) {
2303 BT_ERR("%s: Reset after hardware error failed (%ld)",
2304 hdev->name, PTR_ERR(skb));
2305 return;
2306 }
2307 kfree_skb(skb);
2308
2309 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
2310 if (IS_ERR(skb)) {
2311 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
2312 hdev->name, PTR_ERR(skb));
2313 return;
2314 }
2315
2316 if (skb->len != 13) {
2317 BT_ERR("%s: Exception info size mismatch", hdev->name);
2318 kfree_skb(skb);
2319 return;
2320 }
2321
2322 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
2323
2324 kfree_skb(skb);
2325 }
2326
2327 static int btusb_shutdown_intel(struct hci_dev *hdev)
2328 {
2329 struct sk_buff *skb;
2330 long ret;
2331
2332 /* Some platforms have an issue with BT LED when the interface is
2333 * down or BT radio is turned off, which takes 5 seconds to BT LED
2334 * goes off. This command turns off the BT LED immediately.
2335 */
2336 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2337 if (IS_ERR(skb)) {
2338 ret = PTR_ERR(skb);
2339 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2340 hdev->name, ret);
2341 return ret;
2342 }
2343 kfree_skb(skb);
2344
2345 return 0;
2346 }
2347
2348 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2349 const bdaddr_t *bdaddr)
2350 {
2351 struct sk_buff *skb;
2352 u8 buf[8];
2353 long ret;
2354
2355 buf[0] = 0xfe;
2356 buf[1] = sizeof(bdaddr_t);
2357 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2358
2359 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2360 if (IS_ERR(skb)) {
2361 ret = PTR_ERR(skb);
2362 BT_ERR("%s: changing Marvell device address failed (%ld)",
2363 hdev->name, ret);
2364 return ret;
2365 }
2366 kfree_skb(skb);
2367
2368 return 0;
2369 }
2370
2371 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2372 const bdaddr_t *bdaddr)
2373 {
2374 struct sk_buff *skb;
2375 u8 buf[10];
2376 long ret;
2377
2378 buf[0] = 0x01;
2379 buf[1] = 0x01;
2380 buf[2] = 0x00;
2381 buf[3] = sizeof(bdaddr_t);
2382 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2383
2384 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2385 if (IS_ERR(skb)) {
2386 ret = PTR_ERR(skb);
2387 BT_ERR("%s: Change address command failed (%ld)",
2388 hdev->name, ret);
2389 return ret;
2390 }
2391 kfree_skb(skb);
2392
2393 return 0;
2394 }
2395
2396 #define QCA_DFU_PACKET_LEN 4096
2397
2398 #define QCA_GET_TARGET_VERSION 0x09
2399 #define QCA_CHECK_STATUS 0x05
2400 #define QCA_DFU_DOWNLOAD 0x01
2401
2402 #define QCA_SYSCFG_UPDATED 0x40
2403 #define QCA_PATCH_UPDATED 0x80
2404 #define QCA_DFU_TIMEOUT 3000
2405
2406 struct qca_version {
2407 __le32 rom_version;
2408 __le32 patch_version;
2409 __le32 ram_version;
2410 __le32 ref_clock;
2411 __u8 reserved[4];
2412 } __packed;
2413
2414 struct qca_rampatch_version {
2415 __le16 rom_version;
2416 __le16 patch_version;
2417 } __packed;
2418
2419 struct qca_device_info {
2420 u32 rom_version;
2421 u8 rampatch_hdr; /* length of header in rampatch */
2422 u8 nvm_hdr; /* length of header in NVM */
2423 u8 ver_offset; /* offset of version structure in rampatch */
2424 };
2425
2426 static const struct qca_device_info qca_devices_table[] = {
2427 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2428 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2429 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2430 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2431 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2432 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2433 };
2434
2435 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2436 void *data, u16 size)
2437 {
2438 struct btusb_data *btdata = hci_get_drvdata(hdev);
2439 struct usb_device *udev = btdata->udev;
2440 int pipe, err;
2441 u8 *buf;
2442
2443 buf = kmalloc(size, GFP_KERNEL);
2444 if (!buf)
2445 return -ENOMEM;
2446
2447 /* Found some of USB hosts have IOT issues with ours so that we should
2448 * not wait until HCI layer is ready.
2449 */
2450 pipe = usb_rcvctrlpipe(udev, 0);
2451 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2452 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2453 if (err < 0) {
2454 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2455 goto done;
2456 }
2457
2458 memcpy(data, buf, size);
2459
2460 done:
2461 kfree(buf);
2462
2463 return err;
2464 }
2465
2466 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2467 const struct firmware *firmware,
2468 size_t hdr_size)
2469 {
2470 struct btusb_data *btdata = hci_get_drvdata(hdev);
2471 struct usb_device *udev = btdata->udev;
2472 size_t count, size, sent = 0;
2473 int pipe, len, err;
2474 u8 *buf;
2475
2476 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2477 if (!buf)
2478 return -ENOMEM;
2479
2480 count = firmware->size;
2481
2482 size = min_t(size_t, count, hdr_size);
2483 memcpy(buf, firmware->data, size);
2484
2485 /* USB patches should go down to controller through USB path
2486 * because binary format fits to go down through USB channel.
2487 * USB control path is for patching headers and USB bulk is for
2488 * patch body.
2489 */
2490 pipe = usb_sndctrlpipe(udev, 0);
2491 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2492 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2493 if (err < 0) {
2494 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2495 goto done;
2496 }
2497
2498 sent += size;
2499 count -= size;
2500
2501 while (count) {
2502 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2503
2504 memcpy(buf, firmware->data + sent, size);
2505
2506 pipe = usb_sndbulkpipe(udev, 0x02);
2507 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2508 QCA_DFU_TIMEOUT);
2509 if (err < 0) {
2510 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2511 hdev->name, sent, firmware->size, err);
2512 break;
2513 }
2514
2515 if (size != len) {
2516 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2517 err = -EILSEQ;
2518 break;
2519 }
2520
2521 sent += size;
2522 count -= size;
2523 }
2524
2525 done:
2526 kfree(buf);
2527 return err;
2528 }
2529
2530 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2531 struct qca_version *ver,
2532 const struct qca_device_info *info)
2533 {
2534 struct qca_rampatch_version *rver;
2535 const struct firmware *fw;
2536 u32 ver_rom, ver_patch;
2537 u16 rver_rom, rver_patch;
2538 char fwname[64];
2539 int err;
2540
2541 ver_rom = le32_to_cpu(ver->rom_version);
2542 ver_patch = le32_to_cpu(ver->patch_version);
2543
2544 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2545
2546 err = request_firmware(&fw, fwname, &hdev->dev);
2547 if (err) {
2548 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2549 hdev->name, fwname, err);
2550 return err;
2551 }
2552
2553 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2554
2555 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2556 rver_rom = le16_to_cpu(rver->rom_version);
2557 rver_patch = le16_to_cpu(rver->patch_version);
2558
2559 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2560 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2561 ver_patch);
2562
2563 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2564 BT_ERR("%s: rampatch file version did not match with firmware",
2565 hdev->name);
2566 err = -EINVAL;
2567 goto done;
2568 }
2569
2570 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2571
2572 done:
2573 release_firmware(fw);
2574
2575 return err;
2576 }
2577
2578 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2579 struct qca_version *ver,
2580 const struct qca_device_info *info)
2581 {
2582 const struct firmware *fw;
2583 char fwname[64];
2584 int err;
2585
2586 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2587 le32_to_cpu(ver->rom_version));
2588
2589 err = request_firmware(&fw, fwname, &hdev->dev);
2590 if (err) {
2591 BT_ERR("%s: failed to request NVM file: %s (%d)",
2592 hdev->name, fwname, err);
2593 return err;
2594 }
2595
2596 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2597
2598 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2599
2600 release_firmware(fw);
2601
2602 return err;
2603 }
2604
2605 static int btusb_setup_qca(struct hci_dev *hdev)
2606 {
2607 const struct qca_device_info *info = NULL;
2608 struct qca_version ver;
2609 u32 ver_rom;
2610 u8 status;
2611 int i, err;
2612
2613 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2614 sizeof(ver));
2615 if (err < 0)
2616 return err;
2617
2618 ver_rom = le32_to_cpu(ver.rom_version);
2619 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2620 if (ver_rom == qca_devices_table[i].rom_version)
2621 info = &qca_devices_table[i];
2622 }
2623 if (!info) {
2624 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2625 ver_rom);
2626 return -ENODEV;
2627 }
2628
2629 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2630 sizeof(status));
2631 if (err < 0)
2632 return err;
2633
2634 if (!(status & QCA_PATCH_UPDATED)) {
2635 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2636 if (err < 0)
2637 return err;
2638 }
2639
2640 if (!(status & QCA_SYSCFG_UPDATED)) {
2641 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2642 if (err < 0)
2643 return err;
2644 }
2645
2646 return 0;
2647 }
2648
2649 static int btusb_probe(struct usb_interface *intf,
2650 const struct usb_device_id *id)
2651 {
2652 struct usb_endpoint_descriptor *ep_desc;
2653 struct btusb_data *data;
2654 struct hci_dev *hdev;
2655 int i, err;
2656
2657 BT_DBG("intf %p id %p", intf, id);
2658
2659 /* interface numbers are hardcoded in the spec */
2660 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2661 return -ENODEV;
2662
2663 if (!id->driver_info) {
2664 const struct usb_device_id *match;
2665
2666 match = usb_match_id(intf, blacklist_table);
2667 if (match)
2668 id = match;
2669 }
2670
2671 if (id->driver_info == BTUSB_IGNORE)
2672 return -ENODEV;
2673
2674 if (id->driver_info & BTUSB_ATH3012) {
2675 struct usb_device *udev = interface_to_usbdev(intf);
2676
2677 /* Old firmware would otherwise let ath3k driver load
2678 * patch and sysconfig files */
2679 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2680 return -ENODEV;
2681 }
2682
2683 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2684 if (!data)
2685 return -ENOMEM;
2686
2687 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2688 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2689
2690 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2691 data->intr_ep = ep_desc;
2692 continue;
2693 }
2694
2695 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2696 data->bulk_tx_ep = ep_desc;
2697 continue;
2698 }
2699
2700 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2701 data->bulk_rx_ep = ep_desc;
2702 continue;
2703 }
2704 }
2705
2706 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2707 return -ENODEV;
2708
2709 if (id->driver_info & BTUSB_AMP) {
2710 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2711 data->cmdreq = 0x2b;
2712 } else {
2713 data->cmdreq_type = USB_TYPE_CLASS;
2714 data->cmdreq = 0x00;
2715 }
2716
2717 data->udev = interface_to_usbdev(intf);
2718 data->intf = intf;
2719
2720 INIT_WORK(&data->work, btusb_work);
2721 INIT_WORK(&data->waker, btusb_waker);
2722 init_usb_anchor(&data->deferred);
2723 init_usb_anchor(&data->tx_anchor);
2724 spin_lock_init(&data->txlock);
2725
2726 init_usb_anchor(&data->intr_anchor);
2727 init_usb_anchor(&data->bulk_anchor);
2728 init_usb_anchor(&data->isoc_anchor);
2729 spin_lock_init(&data->rxlock);
2730
2731 if (id->driver_info & BTUSB_INTEL_NEW) {
2732 data->recv_event = btusb_recv_event_intel;
2733 data->recv_bulk = btusb_recv_bulk_intel;
2734 set_bit(BTUSB_BOOTLOADER, &data->flags);
2735 } else {
2736 data->recv_event = hci_recv_frame;
2737 data->recv_bulk = btusb_recv_bulk;
2738 }
2739
2740 hdev = hci_alloc_dev();
2741 if (!hdev)
2742 return -ENOMEM;
2743
2744 hdev->bus = HCI_USB;
2745 hci_set_drvdata(hdev, data);
2746
2747 if (id->driver_info & BTUSB_AMP)
2748 hdev->dev_type = HCI_AMP;
2749 else
2750 hdev->dev_type = HCI_BREDR;
2751
2752 data->hdev = hdev;
2753
2754 SET_HCIDEV_DEV(hdev, &intf->dev);
2755
2756 hdev->open = btusb_open;
2757 hdev->close = btusb_close;
2758 hdev->flush = btusb_flush;
2759 hdev->send = btusb_send_frame;
2760 hdev->notify = btusb_notify;
2761
2762 if (id->driver_info & BTUSB_BCM92035)
2763 hdev->setup = btusb_setup_bcm92035;
2764
2765 #ifdef CONFIG_BT_HCIBTUSB_BCM
2766 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2767 hdev->setup = btbcm_setup_patchram;
2768 hdev->set_bdaddr = btbcm_set_bdaddr;
2769 }
2770
2771 if (id->driver_info & BTUSB_BCM_APPLE)
2772 hdev->setup = btbcm_setup_apple;
2773 #endif
2774
2775 if (id->driver_info & BTUSB_INTEL) {
2776 hdev->setup = btusb_setup_intel;
2777 hdev->shutdown = btusb_shutdown_intel;
2778 hdev->set_bdaddr = btintel_set_bdaddr;
2779 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2780 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2781 }
2782
2783 if (id->driver_info & BTUSB_INTEL_NEW) {
2784 hdev->send = btusb_send_frame_intel;
2785 hdev->setup = btusb_setup_intel_new;
2786 hdev->hw_error = btusb_hw_error_intel;
2787 hdev->set_bdaddr = btintel_set_bdaddr;
2788 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2789 }
2790
2791 if (id->driver_info & BTUSB_MARVELL)
2792 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2793
2794 if (id->driver_info & BTUSB_SWAVE) {
2795 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2796 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2797 }
2798
2799 if (id->driver_info & BTUSB_INTEL_BOOT)
2800 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2801
2802 if (id->driver_info & BTUSB_ATH3012) {
2803 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2804 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2805 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2806 }
2807
2808 if (id->driver_info & BTUSB_QCA_ROME) {
2809 data->setup_on_usb = btusb_setup_qca;
2810 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2811 }
2812
2813 #ifdef CONFIG_BT_HCIBTUSB_RTL
2814 if (id->driver_info & BTUSB_REALTEK) {
2815 hdev->setup = btrtl_setup_realtek;
2816
2817 /* Realtek devices lose their updated firmware over suspend,
2818 * but the USB hub doesn't notice any status change.
2819 * Explicitly request a device reset on resume.
2820 */
2821 set_bit(BTUSB_RESET_RESUME, &data->flags);
2822 }
2823 #endif
2824
2825 if (id->driver_info & BTUSB_AMP) {
2826 /* AMP controllers do not support SCO packets */
2827 data->isoc = NULL;
2828 } else {
2829 /* Interface numbers are hardcoded in the specification */
2830 data->isoc = usb_ifnum_to_if(data->udev, 1);
2831 }
2832
2833 if (!reset)
2834 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2835
2836 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2837 if (!disable_scofix)
2838 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2839 }
2840
2841 if (id->driver_info & BTUSB_BROKEN_ISOC)
2842 data->isoc = NULL;
2843
2844 if (id->driver_info & BTUSB_DIGIANSWER) {
2845 data->cmdreq_type = USB_TYPE_VENDOR;
2846 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2847 }
2848
2849 if (id->driver_info & BTUSB_CSR) {
2850 struct usb_device *udev = data->udev;
2851 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2852
2853 /* Old firmware would otherwise execute USB reset */
2854 if (bcdDevice < 0x117)
2855 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2856
2857 /* Fake CSR devices with broken commands */
2858 if (bcdDevice <= 0x100)
2859 hdev->setup = btusb_setup_csr;
2860
2861 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2862 }
2863
2864 if (id->driver_info & BTUSB_SNIFFER) {
2865 struct usb_device *udev = data->udev;
2866
2867 /* New sniffer firmware has crippled HCI interface */
2868 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2869 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2870 }
2871
2872 if (id->driver_info & BTUSB_INTEL_BOOT) {
2873 /* A bug in the bootloader causes that interrupt interface is
2874 * only enabled after receiving SetInterface(0, AltSetting=0).
2875 */
2876 err = usb_set_interface(data->udev, 0, 0);
2877 if (err < 0) {
2878 BT_ERR("failed to set interface 0, alt 0 %d", err);
2879 hci_free_dev(hdev);
2880 return err;
2881 }
2882 }
2883
2884 if (data->isoc) {
2885 err = usb_driver_claim_interface(&btusb_driver,
2886 data->isoc, data);
2887 if (err < 0) {
2888 hci_free_dev(hdev);
2889 return err;
2890 }
2891 }
2892
2893 err = hci_register_dev(hdev);
2894 if (err < 0) {
2895 hci_free_dev(hdev);
2896 return err;
2897 }
2898
2899 usb_set_intfdata(intf, data);
2900
2901 return 0;
2902 }
2903
2904 static void btusb_disconnect(struct usb_interface *intf)
2905 {
2906 struct btusb_data *data = usb_get_intfdata(intf);
2907 struct hci_dev *hdev;
2908
2909 BT_DBG("intf %p", intf);
2910
2911 if (!data)
2912 return;
2913
2914 hdev = data->hdev;
2915 usb_set_intfdata(data->intf, NULL);
2916
2917 if (data->isoc)
2918 usb_set_intfdata(data->isoc, NULL);
2919
2920 hci_unregister_dev(hdev);
2921
2922 if (intf == data->isoc)
2923 usb_driver_release_interface(&btusb_driver, data->intf);
2924 else if (data->isoc)
2925 usb_driver_release_interface(&btusb_driver, data->isoc);
2926
2927 hci_free_dev(hdev);
2928 }
2929
2930 #ifdef CONFIG_PM
2931 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2932 {
2933 struct btusb_data *data = usb_get_intfdata(intf);
2934
2935 BT_DBG("intf %p", intf);
2936
2937 if (data->suspend_count++)
2938 return 0;
2939
2940 spin_lock_irq(&data->txlock);
2941 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
2942 set_bit(BTUSB_SUSPENDING, &data->flags);
2943 spin_unlock_irq(&data->txlock);
2944 } else {
2945 spin_unlock_irq(&data->txlock);
2946 data->suspend_count--;
2947 return -EBUSY;
2948 }
2949
2950 cancel_work_sync(&data->work);
2951
2952 btusb_stop_traffic(data);
2953 usb_kill_anchored_urbs(&data->tx_anchor);
2954
2955 /* Optionally request a device reset on resume, but only when
2956 * wakeups are disabled. If wakeups are enabled we assume the
2957 * device will stay powered up throughout suspend.
2958 */
2959 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
2960 !device_may_wakeup(&data->udev->dev))
2961 data->udev->reset_resume = 1;
2962
2963 return 0;
2964 }
2965
2966 static void play_deferred(struct btusb_data *data)
2967 {
2968 struct urb *urb;
2969 int err;
2970
2971 while ((urb = usb_get_from_anchor(&data->deferred))) {
2972 err = usb_submit_urb(urb, GFP_ATOMIC);
2973 if (err < 0)
2974 break;
2975
2976 data->tx_in_flight++;
2977 }
2978 usb_scuttle_anchored_urbs(&data->deferred);
2979 }
2980
2981 static int btusb_resume(struct usb_interface *intf)
2982 {
2983 struct btusb_data *data = usb_get_intfdata(intf);
2984 struct hci_dev *hdev = data->hdev;
2985 int err = 0;
2986
2987 BT_DBG("intf %p", intf);
2988
2989 if (--data->suspend_count)
2990 return 0;
2991
2992 if (!test_bit(HCI_RUNNING, &hdev->flags))
2993 goto done;
2994
2995 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2996 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2997 if (err < 0) {
2998 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2999 goto failed;
3000 }
3001 }
3002
3003 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3004 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3005 if (err < 0) {
3006 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3007 goto failed;
3008 }
3009
3010 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3011 }
3012
3013 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3014 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3015 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3016 else
3017 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3018 }
3019
3020 spin_lock_irq(&data->txlock);
3021 play_deferred(data);
3022 clear_bit(BTUSB_SUSPENDING, &data->flags);
3023 spin_unlock_irq(&data->txlock);
3024 schedule_work(&data->work);
3025
3026 return 0;
3027
3028 failed:
3029 usb_scuttle_anchored_urbs(&data->deferred);
3030 done:
3031 spin_lock_irq(&data->txlock);
3032 clear_bit(BTUSB_SUSPENDING, &data->flags);
3033 spin_unlock_irq(&data->txlock);
3034
3035 return err;
3036 }
3037 #endif
3038
3039 static struct usb_driver btusb_driver = {
3040 .name = "btusb",
3041 .probe = btusb_probe,
3042 .disconnect = btusb_disconnect,
3043 #ifdef CONFIG_PM
3044 .suspend = btusb_suspend,
3045 .resume = btusb_resume,
3046 #endif
3047 .id_table = btusb_table,
3048 .supports_autosuspend = 1,
3049 .disable_hub_initiated_lpm = 1,
3050 };
3051
3052 module_usb_driver(btusb_driver);
3053
3054 module_param(disable_scofix, bool, 0644);
3055 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3056
3057 module_param(force_scofix, bool, 0644);
3058 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3059
3060 module_param(reset, bool, 0644);
3061 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3062
3063 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3064 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3065 MODULE_VERSION(VERSION);
3066 MODULE_LICENSE("GPL");
Linux with added FPC-III support