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perf tools: Don't clone maps from parent when synthesizing forks
[linux/fpc-iii.git] / drivers / bluetooth / btusb.c
blob7439a7eb50acbed5fb81cc6bd62ee9707a13d796
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/dmi.h>
25 #include <linux/module.h>
26 #include <linux/usb.h>
27 #include <linux/usb/quirks.h>
28 #include <linux/firmware.h>
29 #include <linux/of_device.h>
30 #include <linux/of_irq.h>
31 #include <linux/suspend.h>
32 #include <asm/unaligned.h>
33
34 #include <net/bluetooth/bluetooth.h>
35 #include <net/bluetooth/hci_core.h>
36
37 #include "btintel.h"
38 #include "btbcm.h"
39 #include "btrtl.h"
40
41 #define VERSION "0.8"
42
43 static bool disable_scofix;
44 static bool force_scofix;
45 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
46
47 static bool reset = true;
48
49 static struct usb_driver btusb_driver;
50
51 #define BTUSB_IGNORE 0x01
52 #define BTUSB_DIGIANSWER 0x02
53 #define BTUSB_CSR 0x04
54 #define BTUSB_SNIFFER 0x08
55 #define BTUSB_BCM92035 0x10
56 #define BTUSB_BROKEN_ISOC 0x20
57 #define BTUSB_WRONG_SCO_MTU 0x40
58 #define BTUSB_ATH3012 0x80
59 #define BTUSB_INTEL 0x100
60 #define BTUSB_INTEL_BOOT 0x200
61 #define BTUSB_BCM_PATCHRAM 0x400
62 #define BTUSB_MARVELL 0x800
63 #define BTUSB_SWAVE 0x1000
64 #define BTUSB_INTEL_NEW 0x2000
65 #define BTUSB_AMP 0x4000
66 #define BTUSB_QCA_ROME 0x8000
67 #define BTUSB_BCM_APPLE 0x10000
68 #define BTUSB_REALTEK 0x20000
69 #define BTUSB_BCM2045 0x40000
70 #define BTUSB_IFNUM_2 0x80000
71 #define BTUSB_CW6622 0x100000
72
73 static const struct usb_device_id btusb_table[] = {
74 /* Generic Bluetooth USB device */
75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
76
77 /* Generic Bluetooth AMP device */
78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
79
80 /* Generic Bluetooth USB interface */
81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
82
83 /* Apple-specific (Broadcom) devices */
84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
86
87 /* MediaTek MT76x0E */
88 { USB_DEVICE(0x0e8d, 0x763f) },
89
90 /* Broadcom SoftSailing reporting vendor specific */
91 { USB_DEVICE(0x0a5c, 0x21e1) },
92
93 /* Apple MacBookPro 7,1 */
94 { USB_DEVICE(0x05ac, 0x8213) },
95
96 /* Apple iMac11,1 */
97 { USB_DEVICE(0x05ac, 0x8215) },
98
99 /* Apple MacBookPro6,2 */
100 { USB_DEVICE(0x05ac, 0x8218) },
101
102 /* Apple MacBookAir3,1, MacBookAir3,2 */
103 { USB_DEVICE(0x05ac, 0x821b) },
104
105 /* Apple MacBookAir4,1 */
106 { USB_DEVICE(0x05ac, 0x821f) },
107
108 /* Apple MacBookPro8,2 */
109 { USB_DEVICE(0x05ac, 0x821a) },
110
111 /* Apple MacMini5,1 */
112 { USB_DEVICE(0x05ac, 0x8281) },
113
114 /* AVM BlueFRITZ! USB v2.0 */
115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
116
117 /* Bluetooth Ultraport Module from IBM */
118 { USB_DEVICE(0x04bf, 0x030a) },
119
120 /* ALPS Modules with non-standard id */
121 { USB_DEVICE(0x044e, 0x3001) },
122 { USB_DEVICE(0x044e, 0x3002) },
123
124 /* Ericsson with non-standard id */
125 { USB_DEVICE(0x0bdb, 0x1002) },
126
127 /* Canyon CN-BTU1 with HID interfaces */
128 { USB_DEVICE(0x0c10, 0x0000) },
129
130 /* Broadcom BCM20702A0 */
131 { USB_DEVICE(0x413c, 0x8197) },
132
133 /* Broadcom BCM20702B0 (Dynex/Insignia) */
134 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Broadcom BCM920703 (HTC Vive) */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* Foxconn - Hon Hai */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* Lite-On Technology - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152 /* Broadcom devices with vendor specific id */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156 /* ASUSTek Computer - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160 /* Belkin F8065bf - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
164 /* IMC Networks - Broadcom based */
165 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
167
168 /* Dell Computer - Broadcom based */
169 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
170 .driver_info = BTUSB_BCM_PATCHRAM },
171
172 /* Toshiba Corp - Broadcom based */
173 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
174 .driver_info = BTUSB_BCM_PATCHRAM },
175
176 /* Intel Bluetooth USB Bootloader (RAM module) */
177 { USB_DEVICE(0x8087, 0x0a5a),
178 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
179
180 { } /* Terminating entry */
181 };
182
183 MODULE_DEVICE_TABLE(usb, btusb_table);
184
185 static const struct usb_device_id blacklist_table[] = {
186 /* CSR BlueCore devices */
187 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
188
189 /* Broadcom BCM2033 without firmware */
190 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
191
192 /* Broadcom BCM2045 devices */
193 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
194
195 /* Atheros 3011 with sflash firmware */
196 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
197 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
198 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
199 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
200 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
201 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
202 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
203
204 /* Atheros AR9285 Malbec with sflash firmware */
205 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
206
207 /* Atheros 3012 with sflash firmware */
208 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
251 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
253 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
254 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
255 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
256 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
258
259 /* Atheros AR5BBU12 with sflash firmware */
260 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
261
262 /* Atheros AR5BBU12 with sflash firmware */
263 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
264 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
265
266 /* QCA ROME chipset */
267 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
268 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
269 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
274 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
275 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
276 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
277 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
278 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
279 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
280 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
281 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
282
283 /* Broadcom BCM2035 */
284 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
285 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
286 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
287
288 /* Broadcom BCM2045 */
289 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
290 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
291
292 /* IBM/Lenovo ThinkPad with Broadcom chip */
293 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
294 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
295
296 /* HP laptop with Broadcom chip */
297 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
298
299 /* Dell laptop with Broadcom chip */
300 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
301
302 /* Dell Wireless 370 and 410 devices */
303 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
304 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
305
306 /* Belkin F8T012 and F8T013 devices */
307 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
308 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
309
310 /* Asus WL-BTD202 device */
311 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
312
313 /* Kensington Bluetooth USB adapter */
314 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
315
316 /* RTX Telecom based adapters with buggy SCO support */
317 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
318 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
319
320 /* CONWISE Technology based adapters with buggy SCO support */
321 { USB_DEVICE(0x0e5e, 0x6622),
322 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
323
324 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
325 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
326
327 /* Digianswer devices */
328 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
329 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
330
331 /* CSR BlueCore Bluetooth Sniffer */
332 { USB_DEVICE(0x0a12, 0x0002),
333 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
334
335 /* Frontline ComProbe Bluetooth Sniffer */
336 { USB_DEVICE(0x16d3, 0x0002),
337 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
338
339 /* Marvell Bluetooth devices */
340 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
341 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
342 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
343
344 /* Intel Bluetooth devices */
345 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
346 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
347 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
348 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
349 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
350 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
351 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
352 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
353
354 /* Other Intel Bluetooth devices */
355 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
356 .driver_info = BTUSB_IGNORE },
357
358 /* Realtek Bluetooth devices */
359 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
360 .driver_info = BTUSB_REALTEK },
361
362 /* Additional Realtek 8723AE Bluetooth devices */
363 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
365
366 /* Additional Realtek 8723BE Bluetooth devices */
367 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
368 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
369 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
370 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
371 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
372 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
373
374 /* Additional Realtek 8723BU Bluetooth devices */
375 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
376
377 /* Additional Realtek 8723DE Bluetooth devices */
378 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
379 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
380
381 /* Additional Realtek 8821AE Bluetooth devices */
382 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
383 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
384 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
385 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
386 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
387
388 /* Additional Realtek 8822BE Bluetooth devices */
389 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
390 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
391
392 /* Silicon Wave based devices */
393 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
394
395 { } /* Terminating entry */
396 };
397
398 /* The Bluetooth USB module build into some devices needs to be reset on resume,
399 * this is a problem with the platform (likely shutting off all power) not with
400 * the module itself. So we use a DMI list to match known broken platforms.
401 */
402 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
403 {
404 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
405 .matches = {
406 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
407 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
408 },
409 },
410 {
411 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
412 .matches = {
413 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
414 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
415 },
416 },
417 {
418 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
419 .matches = {
420 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
421 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
422 },
423 },
424 {}
425 };
426
427 #define BTUSB_MAX_ISOC_FRAMES 10
428
429 #define BTUSB_INTR_RUNNING 0
430 #define BTUSB_BULK_RUNNING 1
431 #define BTUSB_ISOC_RUNNING 2
432 #define BTUSB_SUSPENDING 3
433 #define BTUSB_DID_ISO_RESUME 4
434 #define BTUSB_BOOTLOADER 5
435 #define BTUSB_DOWNLOADING 6
436 #define BTUSB_FIRMWARE_LOADED 7
437 #define BTUSB_FIRMWARE_FAILED 8
438 #define BTUSB_BOOTING 9
439 #define BTUSB_DIAG_RUNNING 10
440 #define BTUSB_OOB_WAKE_ENABLED 11
441
442 struct btusb_data {
443 struct hci_dev *hdev;
444 struct usb_device *udev;
445 struct usb_interface *intf;
446 struct usb_interface *isoc;
447 struct usb_interface *diag;
448 unsigned isoc_ifnum;
449
450 unsigned long flags;
451
452 struct work_struct work;
453 struct work_struct waker;
454
455 struct usb_anchor deferred;
456 struct usb_anchor tx_anchor;
457 int tx_in_flight;
458 spinlock_t txlock;
459
460 struct usb_anchor intr_anchor;
461 struct usb_anchor bulk_anchor;
462 struct usb_anchor isoc_anchor;
463 struct usb_anchor diag_anchor;
464 spinlock_t rxlock;
465
466 struct sk_buff *evt_skb;
467 struct sk_buff *acl_skb;
468 struct sk_buff *sco_skb;
469
470 struct usb_endpoint_descriptor *intr_ep;
471 struct usb_endpoint_descriptor *bulk_tx_ep;
472 struct usb_endpoint_descriptor *bulk_rx_ep;
473 struct usb_endpoint_descriptor *isoc_tx_ep;
474 struct usb_endpoint_descriptor *isoc_rx_ep;
475 struct usb_endpoint_descriptor *diag_tx_ep;
476 struct usb_endpoint_descriptor *diag_rx_ep;
477
478 __u8 cmdreq_type;
479 __u8 cmdreq;
480
481 unsigned int sco_num;
482 int isoc_altsetting;
483 int suspend_count;
484
485 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
486 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
487
488 int (*setup_on_usb)(struct hci_dev *hdev);
489
490 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
491 };
492
493 static inline void btusb_free_frags(struct btusb_data *data)
494 {
495 unsigned long flags;
496
497 spin_lock_irqsave(&data->rxlock, flags);
498
499 kfree_skb(data->evt_skb);
500 data->evt_skb = NULL;
501
502 kfree_skb(data->acl_skb);
503 data->acl_skb = NULL;
504
505 kfree_skb(data->sco_skb);
506 data->sco_skb = NULL;
507
508 spin_unlock_irqrestore(&data->rxlock, flags);
509 }
510
511 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
512 {
513 struct sk_buff *skb;
514 unsigned long flags;
515 int err = 0;
516
517 spin_lock_irqsave(&data->rxlock, flags);
518 skb = data->evt_skb;
519
520 while (count) {
521 int len;
522
523 if (!skb) {
524 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
525 if (!skb) {
526 err = -ENOMEM;
527 break;
528 }
529
530 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
531 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
532 }
533
534 len = min_t(uint, hci_skb_expect(skb), count);
535 skb_put_data(skb, buffer, len);
536
537 count -= len;
538 buffer += len;
539 hci_skb_expect(skb) -= len;
540
541 if (skb->len == HCI_EVENT_HDR_SIZE) {
542 /* Complete event header */
543 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
544
545 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
546 kfree_skb(skb);
547 skb = NULL;
548
549 err = -EILSEQ;
550 break;
551 }
552 }
553
554 if (!hci_skb_expect(skb)) {
555 /* Complete frame */
556 data->recv_event(data->hdev, skb);
557 skb = NULL;
558 }
559 }
560
561 data->evt_skb = skb;
562 spin_unlock_irqrestore(&data->rxlock, flags);
563
564 return err;
565 }
566
567 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
568 {
569 struct sk_buff *skb;
570 unsigned long flags;
571 int err = 0;
572
573 spin_lock_irqsave(&data->rxlock, flags);
574 skb = data->acl_skb;
575
576 while (count) {
577 int len;
578
579 if (!skb) {
580 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
581 if (!skb) {
582 err = -ENOMEM;
583 break;
584 }
585
586 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
587 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
588 }
589
590 len = min_t(uint, hci_skb_expect(skb), count);
591 skb_put_data(skb, buffer, len);
592
593 count -= len;
594 buffer += len;
595 hci_skb_expect(skb) -= len;
596
597 if (skb->len == HCI_ACL_HDR_SIZE) {
598 __le16 dlen = hci_acl_hdr(skb)->dlen;
599
600 /* Complete ACL header */
601 hci_skb_expect(skb) = __le16_to_cpu(dlen);
602
603 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
604 kfree_skb(skb);
605 skb = NULL;
606
607 err = -EILSEQ;
608 break;
609 }
610 }
611
612 if (!hci_skb_expect(skb)) {
613 /* Complete frame */
614 hci_recv_frame(data->hdev, skb);
615 skb = NULL;
616 }
617 }
618
619 data->acl_skb = skb;
620 spin_unlock_irqrestore(&data->rxlock, flags);
621
622 return err;
623 }
624
625 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
626 {
627 struct sk_buff *skb;
628 unsigned long flags;
629 int err = 0;
630
631 spin_lock_irqsave(&data->rxlock, flags);
632 skb = data->sco_skb;
633
634 while (count) {
635 int len;
636
637 if (!skb) {
638 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
639 if (!skb) {
640 err = -ENOMEM;
641 break;
642 }
643
644 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
645 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
646 }
647
648 len = min_t(uint, hci_skb_expect(skb), count);
649 skb_put_data(skb, buffer, len);
650
651 count -= len;
652 buffer += len;
653 hci_skb_expect(skb) -= len;
654
655 if (skb->len == HCI_SCO_HDR_SIZE) {
656 /* Complete SCO header */
657 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
658
659 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
660 kfree_skb(skb);
661 skb = NULL;
662
663 err = -EILSEQ;
664 break;
665 }
666 }
667
668 if (!hci_skb_expect(skb)) {
669 /* Complete frame */
670 hci_recv_frame(data->hdev, skb);
671 skb = NULL;
672 }
673 }
674
675 data->sco_skb = skb;
676 spin_unlock_irqrestore(&data->rxlock, flags);
677
678 return err;
679 }
680
681 static void btusb_intr_complete(struct urb *urb)
682 {
683 struct hci_dev *hdev = urb->context;
684 struct btusb_data *data = hci_get_drvdata(hdev);
685 int err;
686
687 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
688 urb->actual_length);
689
690 if (!test_bit(HCI_RUNNING, &hdev->flags))
691 return;
692
693 if (urb->status == 0) {
694 hdev->stat.byte_rx += urb->actual_length;
695
696 if (btusb_recv_intr(data, urb->transfer_buffer,
697 urb->actual_length) < 0) {
698 bt_dev_err(hdev, "corrupted event packet");
699 hdev->stat.err_rx++;
700 }
701 } else if (urb->status == -ENOENT) {
702 /* Avoid suspend failed when usb_kill_urb */
703 return;
704 }
705
706 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
707 return;
708
709 usb_mark_last_busy(data->udev);
710 usb_anchor_urb(urb, &data->intr_anchor);
711
712 err = usb_submit_urb(urb, GFP_ATOMIC);
713 if (err < 0) {
714 /* -EPERM: urb is being killed;
715 * -ENODEV: device got disconnected
716 */
717 if (err != -EPERM && err != -ENODEV)
718 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
719 urb, -err);
720 usb_unanchor_urb(urb);
721 }
722 }
723
724 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
725 {
726 struct btusb_data *data = hci_get_drvdata(hdev);
727 struct urb *urb;
728 unsigned char *buf;
729 unsigned int pipe;
730 int err, size;
731
732 BT_DBG("%s", hdev->name);
733
734 if (!data->intr_ep)
735 return -ENODEV;
736
737 urb = usb_alloc_urb(0, mem_flags);
738 if (!urb)
739 return -ENOMEM;
740
741 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
742
743 buf = kmalloc(size, mem_flags);
744 if (!buf) {
745 usb_free_urb(urb);
746 return -ENOMEM;
747 }
748
749 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
750
751 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
752 btusb_intr_complete, hdev, data->intr_ep->bInterval);
753
754 urb->transfer_flags |= URB_FREE_BUFFER;
755
756 usb_anchor_urb(urb, &data->intr_anchor);
757
758 err = usb_submit_urb(urb, mem_flags);
759 if (err < 0) {
760 if (err != -EPERM && err != -ENODEV)
761 bt_dev_err(hdev, "urb %p submission failed (%d)",
762 urb, -err);
763 usb_unanchor_urb(urb);
764 }
765
766 usb_free_urb(urb);
767
768 return err;
769 }
770
771 static void btusb_bulk_complete(struct urb *urb)
772 {
773 struct hci_dev *hdev = urb->context;
774 struct btusb_data *data = hci_get_drvdata(hdev);
775 int err;
776
777 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
778 urb->actual_length);
779
780 if (!test_bit(HCI_RUNNING, &hdev->flags))
781 return;
782
783 if (urb->status == 0) {
784 hdev->stat.byte_rx += urb->actual_length;
785
786 if (data->recv_bulk(data, urb->transfer_buffer,
787 urb->actual_length) < 0) {
788 bt_dev_err(hdev, "corrupted ACL packet");
789 hdev->stat.err_rx++;
790 }
791 } else if (urb->status == -ENOENT) {
792 /* Avoid suspend failed when usb_kill_urb */
793 return;
794 }
795
796 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
797 return;
798
799 usb_anchor_urb(urb, &data->bulk_anchor);
800 usb_mark_last_busy(data->udev);
801
802 err = usb_submit_urb(urb, GFP_ATOMIC);
803 if (err < 0) {
804 /* -EPERM: urb is being killed;
805 * -ENODEV: device got disconnected
806 */
807 if (err != -EPERM && err != -ENODEV)
808 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
809 urb, -err);
810 usb_unanchor_urb(urb);
811 }
812 }
813
814 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
815 {
816 struct btusb_data *data = hci_get_drvdata(hdev);
817 struct urb *urb;
818 unsigned char *buf;
819 unsigned int pipe;
820 int err, size = HCI_MAX_FRAME_SIZE;
821
822 BT_DBG("%s", hdev->name);
823
824 if (!data->bulk_rx_ep)
825 return -ENODEV;
826
827 urb = usb_alloc_urb(0, mem_flags);
828 if (!urb)
829 return -ENOMEM;
830
831 buf = kmalloc(size, mem_flags);
832 if (!buf) {
833 usb_free_urb(urb);
834 return -ENOMEM;
835 }
836
837 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
838
839 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
840 btusb_bulk_complete, hdev);
841
842 urb->transfer_flags |= URB_FREE_BUFFER;
843
844 usb_mark_last_busy(data->udev);
845 usb_anchor_urb(urb, &data->bulk_anchor);
846
847 err = usb_submit_urb(urb, mem_flags);
848 if (err < 0) {
849 if (err != -EPERM && err != -ENODEV)
850 bt_dev_err(hdev, "urb %p submission failed (%d)",
851 urb, -err);
852 usb_unanchor_urb(urb);
853 }
854
855 usb_free_urb(urb);
856
857 return err;
858 }
859
860 static void btusb_isoc_complete(struct urb *urb)
861 {
862 struct hci_dev *hdev = urb->context;
863 struct btusb_data *data = hci_get_drvdata(hdev);
864 int i, err;
865
866 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
867 urb->actual_length);
868
869 if (!test_bit(HCI_RUNNING, &hdev->flags))
870 return;
871
872 if (urb->status == 0) {
873 for (i = 0; i < urb->number_of_packets; i++) {
874 unsigned int offset = urb->iso_frame_desc[i].offset;
875 unsigned int length = urb->iso_frame_desc[i].actual_length;
876
877 if (urb->iso_frame_desc[i].status)
878 continue;
879
880 hdev->stat.byte_rx += length;
881
882 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
883 length) < 0) {
884 bt_dev_err(hdev, "corrupted SCO packet");
885 hdev->stat.err_rx++;
886 }
887 }
888 } else if (urb->status == -ENOENT) {
889 /* Avoid suspend failed when usb_kill_urb */
890 return;
891 }
892
893 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
894 return;
895
896 usb_anchor_urb(urb, &data->isoc_anchor);
897
898 err = usb_submit_urb(urb, GFP_ATOMIC);
899 if (err < 0) {
900 /* -EPERM: urb is being killed;
901 * -ENODEV: device got disconnected
902 */
903 if (err != -EPERM && err != -ENODEV)
904 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
905 urb, -err);
906 usb_unanchor_urb(urb);
907 }
908 }
909
910 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
911 {
912 int i, offset = 0;
913
914 BT_DBG("len %d mtu %d", len, mtu);
915
916 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
917 i++, offset += mtu, len -= mtu) {
918 urb->iso_frame_desc[i].offset = offset;
919 urb->iso_frame_desc[i].length = mtu;
920 }
921
922 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
923 urb->iso_frame_desc[i].offset = offset;
924 urb->iso_frame_desc[i].length = len;
925 i++;
926 }
927
928 urb->number_of_packets = i;
929 }
930
931 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
932 {
933 struct btusb_data *data = hci_get_drvdata(hdev);
934 struct urb *urb;
935 unsigned char *buf;
936 unsigned int pipe;
937 int err, size;
938
939 BT_DBG("%s", hdev->name);
940
941 if (!data->isoc_rx_ep)
942 return -ENODEV;
943
944 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
945 if (!urb)
946 return -ENOMEM;
947
948 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
949 BTUSB_MAX_ISOC_FRAMES;
950
951 buf = kmalloc(size, mem_flags);
952 if (!buf) {
953 usb_free_urb(urb);
954 return -ENOMEM;
955 }
956
957 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
958
959 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
960 hdev, data->isoc_rx_ep->bInterval);
961
962 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
963
964 __fill_isoc_descriptor(urb, size,
965 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
966
967 usb_anchor_urb(urb, &data->isoc_anchor);
968
969 err = usb_submit_urb(urb, mem_flags);
970 if (err < 0) {
971 if (err != -EPERM && err != -ENODEV)
972 bt_dev_err(hdev, "urb %p submission failed (%d)",
973 urb, -err);
974 usb_unanchor_urb(urb);
975 }
976
977 usb_free_urb(urb);
978
979 return err;
980 }
981
982 static void btusb_diag_complete(struct urb *urb)
983 {
984 struct hci_dev *hdev = urb->context;
985 struct btusb_data *data = hci_get_drvdata(hdev);
986 int err;
987
988 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
989 urb->actual_length);
990
991 if (urb->status == 0) {
992 struct sk_buff *skb;
993
994 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
995 if (skb) {
996 skb_put_data(skb, urb->transfer_buffer,
997 urb->actual_length);
998 hci_recv_diag(hdev, skb);
999 }
1000 } else if (urb->status == -ENOENT) {
1001 /* Avoid suspend failed when usb_kill_urb */
1002 return;
1003 }
1004
1005 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1006 return;
1007
1008 usb_anchor_urb(urb, &data->diag_anchor);
1009 usb_mark_last_busy(data->udev);
1010
1011 err = usb_submit_urb(urb, GFP_ATOMIC);
1012 if (err < 0) {
1013 /* -EPERM: urb is being killed;
1014 * -ENODEV: device got disconnected
1015 */
1016 if (err != -EPERM && err != -ENODEV)
1017 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1018 urb, -err);
1019 usb_unanchor_urb(urb);
1020 }
1021 }
1022
1023 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1024 {
1025 struct btusb_data *data = hci_get_drvdata(hdev);
1026 struct urb *urb;
1027 unsigned char *buf;
1028 unsigned int pipe;
1029 int err, size = HCI_MAX_FRAME_SIZE;
1030
1031 BT_DBG("%s", hdev->name);
1032
1033 if (!data->diag_rx_ep)
1034 return -ENODEV;
1035
1036 urb = usb_alloc_urb(0, mem_flags);
1037 if (!urb)
1038 return -ENOMEM;
1039
1040 buf = kmalloc(size, mem_flags);
1041 if (!buf) {
1042 usb_free_urb(urb);
1043 return -ENOMEM;
1044 }
1045
1046 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1047
1048 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1049 btusb_diag_complete, hdev);
1050
1051 urb->transfer_flags |= URB_FREE_BUFFER;
1052
1053 usb_mark_last_busy(data->udev);
1054 usb_anchor_urb(urb, &data->diag_anchor);
1055
1056 err = usb_submit_urb(urb, mem_flags);
1057 if (err < 0) {
1058 if (err != -EPERM && err != -ENODEV)
1059 bt_dev_err(hdev, "urb %p submission failed (%d)",
1060 urb, -err);
1061 usb_unanchor_urb(urb);
1062 }
1063
1064 usb_free_urb(urb);
1065
1066 return err;
1067 }
1068
1069 static void btusb_tx_complete(struct urb *urb)
1070 {
1071 struct sk_buff *skb = urb->context;
1072 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1073 struct btusb_data *data = hci_get_drvdata(hdev);
1074 unsigned long flags;
1075
1076 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1077 urb->actual_length);
1078
1079 if (!test_bit(HCI_RUNNING, &hdev->flags))
1080 goto done;
1081
1082 if (!urb->status)
1083 hdev->stat.byte_tx += urb->transfer_buffer_length;
1084 else
1085 hdev->stat.err_tx++;
1086
1087 done:
1088 spin_lock_irqsave(&data->txlock, flags);
1089 data->tx_in_flight--;
1090 spin_unlock_irqrestore(&data->txlock, flags);
1091
1092 kfree(urb->setup_packet);
1093
1094 kfree_skb(skb);
1095 }
1096
1097 static void btusb_isoc_tx_complete(struct urb *urb)
1098 {
1099 struct sk_buff *skb = urb->context;
1100 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1101
1102 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1103 urb->actual_length);
1104
1105 if (!test_bit(HCI_RUNNING, &hdev->flags))
1106 goto done;
1107
1108 if (!urb->status)
1109 hdev->stat.byte_tx += urb->transfer_buffer_length;
1110 else
1111 hdev->stat.err_tx++;
1112
1113 done:
1114 kfree(urb->setup_packet);
1115
1116 kfree_skb(skb);
1117 }
1118
1119 static int btusb_open(struct hci_dev *hdev)
1120 {
1121 struct btusb_data *data = hci_get_drvdata(hdev);
1122 int err;
1123
1124 BT_DBG("%s", hdev->name);
1125
1126 err = usb_autopm_get_interface(data->intf);
1127 if (err < 0)
1128 return err;
1129
1130 /* Patching USB firmware files prior to starting any URBs of HCI path
1131 * It is more safe to use USB bulk channel for downloading USB patch
1132 */
1133 if (data->setup_on_usb) {
1134 err = data->setup_on_usb(hdev);
1135 if (err < 0)
1136 return err;
1137 }
1138
1139 data->intf->needs_remote_wakeup = 1;
1140 /* device specific wakeup source enabled and required for USB
1141 * remote wakeup while host is suspended
1142 */
1143 device_wakeup_enable(&data->udev->dev);
1144
1145 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1146 goto done;
1147
1148 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1149 if (err < 0)
1150 goto failed;
1151
1152 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1153 if (err < 0) {
1154 usb_kill_anchored_urbs(&data->intr_anchor);
1155 goto failed;
1156 }
1157
1158 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1159 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1160
1161 if (data->diag) {
1162 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1163 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1164 }
1165
1166 done:
1167 usb_autopm_put_interface(data->intf);
1168 return 0;
1169
1170 failed:
1171 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1172 usb_autopm_put_interface(data->intf);
1173 return err;
1174 }
1175
1176 static void btusb_stop_traffic(struct btusb_data *data)
1177 {
1178 usb_kill_anchored_urbs(&data->intr_anchor);
1179 usb_kill_anchored_urbs(&data->bulk_anchor);
1180 usb_kill_anchored_urbs(&data->isoc_anchor);
1181 usb_kill_anchored_urbs(&data->diag_anchor);
1182 }
1183
1184 static int btusb_close(struct hci_dev *hdev)
1185 {
1186 struct btusb_data *data = hci_get_drvdata(hdev);
1187 int err;
1188
1189 BT_DBG("%s", hdev->name);
1190
1191 cancel_work_sync(&data->work);
1192 cancel_work_sync(&data->waker);
1193
1194 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1195 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1196 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1197 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1198
1199 btusb_stop_traffic(data);
1200 btusb_free_frags(data);
1201
1202 err = usb_autopm_get_interface(data->intf);
1203 if (err < 0)
1204 goto failed;
1205
1206 data->intf->needs_remote_wakeup = 0;
1207 device_wakeup_disable(&data->udev->dev);
1208 usb_autopm_put_interface(data->intf);
1209
1210 failed:
1211 usb_scuttle_anchored_urbs(&data->deferred);
1212 return 0;
1213 }
1214
1215 static int btusb_flush(struct hci_dev *hdev)
1216 {
1217 struct btusb_data *data = hci_get_drvdata(hdev);
1218
1219 BT_DBG("%s", hdev->name);
1220
1221 usb_kill_anchored_urbs(&data->tx_anchor);
1222 btusb_free_frags(data);
1223
1224 return 0;
1225 }
1226
1227 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1228 {
1229 struct btusb_data *data = hci_get_drvdata(hdev);
1230 struct usb_ctrlrequest *dr;
1231 struct urb *urb;
1232 unsigned int pipe;
1233
1234 urb = usb_alloc_urb(0, GFP_KERNEL);
1235 if (!urb)
1236 return ERR_PTR(-ENOMEM);
1237
1238 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1239 if (!dr) {
1240 usb_free_urb(urb);
1241 return ERR_PTR(-ENOMEM);
1242 }
1243
1244 dr->bRequestType = data->cmdreq_type;
1245 dr->bRequest = data->cmdreq;
1246 dr->wIndex = 0;
1247 dr->wValue = 0;
1248 dr->wLength = __cpu_to_le16(skb->len);
1249
1250 pipe = usb_sndctrlpipe(data->udev, 0x00);
1251
1252 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1253 skb->data, skb->len, btusb_tx_complete, skb);
1254
1255 skb->dev = (void *)hdev;
1256
1257 return urb;
1258 }
1259
1260 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1261 {
1262 struct btusb_data *data = hci_get_drvdata(hdev);
1263 struct urb *urb;
1264 unsigned int pipe;
1265
1266 if (!data->bulk_tx_ep)
1267 return ERR_PTR(-ENODEV);
1268
1269 urb = usb_alloc_urb(0, GFP_KERNEL);
1270 if (!urb)
1271 return ERR_PTR(-ENOMEM);
1272
1273 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1274
1275 usb_fill_bulk_urb(urb, data->udev, pipe,
1276 skb->data, skb->len, btusb_tx_complete, skb);
1277
1278 skb->dev = (void *)hdev;
1279
1280 return urb;
1281 }
1282
1283 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1284 {
1285 struct btusb_data *data = hci_get_drvdata(hdev);
1286 struct urb *urb;
1287 unsigned int pipe;
1288
1289 if (!data->isoc_tx_ep)
1290 return ERR_PTR(-ENODEV);
1291
1292 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1293 if (!urb)
1294 return ERR_PTR(-ENOMEM);
1295
1296 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1297
1298 usb_fill_int_urb(urb, data->udev, pipe,
1299 skb->data, skb->len, btusb_isoc_tx_complete,
1300 skb, data->isoc_tx_ep->bInterval);
1301
1302 urb->transfer_flags = URB_ISO_ASAP;
1303
1304 __fill_isoc_descriptor(urb, skb->len,
1305 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1306
1307 skb->dev = (void *)hdev;
1308
1309 return urb;
1310 }
1311
1312 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1313 {
1314 struct btusb_data *data = hci_get_drvdata(hdev);
1315 int err;
1316
1317 usb_anchor_urb(urb, &data->tx_anchor);
1318
1319 err = usb_submit_urb(urb, GFP_KERNEL);
1320 if (err < 0) {
1321 if (err != -EPERM && err != -ENODEV)
1322 bt_dev_err(hdev, "urb %p submission failed (%d)",
1323 urb, -err);
1324 kfree(urb->setup_packet);
1325 usb_unanchor_urb(urb);
1326 } else {
1327 usb_mark_last_busy(data->udev);
1328 }
1329
1330 usb_free_urb(urb);
1331 return err;
1332 }
1333
1334 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1335 {
1336 struct btusb_data *data = hci_get_drvdata(hdev);
1337 unsigned long flags;
1338 bool suspending;
1339
1340 spin_lock_irqsave(&data->txlock, flags);
1341 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1342 if (!suspending)
1343 data->tx_in_flight++;
1344 spin_unlock_irqrestore(&data->txlock, flags);
1345
1346 if (!suspending)
1347 return submit_tx_urb(hdev, urb);
1348
1349 usb_anchor_urb(urb, &data->deferred);
1350 schedule_work(&data->waker);
1351
1352 usb_free_urb(urb);
1353 return 0;
1354 }
1355
1356 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1357 {
1358 struct urb *urb;
1359
1360 BT_DBG("%s", hdev->name);
1361
1362 switch (hci_skb_pkt_type(skb)) {
1363 case HCI_COMMAND_PKT:
1364 urb = alloc_ctrl_urb(hdev, skb);
1365 if (IS_ERR(urb))
1366 return PTR_ERR(urb);
1367
1368 hdev->stat.cmd_tx++;
1369 return submit_or_queue_tx_urb(hdev, urb);
1370
1371 case HCI_ACLDATA_PKT:
1372 urb = alloc_bulk_urb(hdev, skb);
1373 if (IS_ERR(urb))
1374 return PTR_ERR(urb);
1375
1376 hdev->stat.acl_tx++;
1377 return submit_or_queue_tx_urb(hdev, urb);
1378
1379 case HCI_SCODATA_PKT:
1380 if (hci_conn_num(hdev, SCO_LINK) < 1)
1381 return -ENODEV;
1382
1383 urb = alloc_isoc_urb(hdev, skb);
1384 if (IS_ERR(urb))
1385 return PTR_ERR(urb);
1386
1387 hdev->stat.sco_tx++;
1388 return submit_tx_urb(hdev, urb);
1389 }
1390
1391 return -EILSEQ;
1392 }
1393
1394 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1395 {
1396 struct btusb_data *data = hci_get_drvdata(hdev);
1397
1398 BT_DBG("%s evt %d", hdev->name, evt);
1399
1400 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1401 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1402 schedule_work(&data->work);
1403 }
1404 }
1405
1406 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1407 {
1408 struct btusb_data *data = hci_get_drvdata(hdev);
1409 struct usb_interface *intf = data->isoc;
1410 struct usb_endpoint_descriptor *ep_desc;
1411 int i, err;
1412
1413 if (!data->isoc)
1414 return -ENODEV;
1415
1416 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1417 if (err < 0) {
1418 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1419 return err;
1420 }
1421
1422 data->isoc_altsetting = altsetting;
1423
1424 data->isoc_tx_ep = NULL;
1425 data->isoc_rx_ep = NULL;
1426
1427 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1428 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1429
1430 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1431 data->isoc_tx_ep = ep_desc;
1432 continue;
1433 }
1434
1435 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1436 data->isoc_rx_ep = ep_desc;
1437 continue;
1438 }
1439 }
1440
1441 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1442 bt_dev_err(hdev, "invalid SCO descriptors");
1443 return -ENODEV;
1444 }
1445
1446 return 0;
1447 }
1448
1449 static void btusb_work(struct work_struct *work)
1450 {
1451 struct btusb_data *data = container_of(work, struct btusb_data, work);
1452 struct hci_dev *hdev = data->hdev;
1453 int new_alts;
1454 int err;
1455
1456 if (data->sco_num > 0) {
1457 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1458 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1459 if (err < 0) {
1460 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1461 usb_kill_anchored_urbs(&data->isoc_anchor);
1462 return;
1463 }
1464
1465 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1466 }
1467
1468 if (hdev->voice_setting & 0x0020) {
1469 static const int alts[3] = { 2, 4, 5 };
1470
1471 new_alts = alts[data->sco_num - 1];
1472 } else {
1473 new_alts = data->sco_num;
1474 }
1475
1476 if (data->isoc_altsetting != new_alts) {
1477 unsigned long flags;
1478
1479 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1480 usb_kill_anchored_urbs(&data->isoc_anchor);
1481
1482 /* When isochronous alternate setting needs to be
1483 * changed, because SCO connection has been added
1484 * or removed, a packet fragment may be left in the
1485 * reassembling state. This could lead to wrongly
1486 * assembled fragments.
1487 *
1488 * Clear outstanding fragment when selecting a new
1489 * alternate setting.
1490 */
1491 spin_lock_irqsave(&data->rxlock, flags);
1492 kfree_skb(data->sco_skb);
1493 data->sco_skb = NULL;
1494 spin_unlock_irqrestore(&data->rxlock, flags);
1495
1496 if (__set_isoc_interface(hdev, new_alts) < 0)
1497 return;
1498 }
1499
1500 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1501 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1502 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1503 else
1504 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1505 }
1506 } else {
1507 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1508 usb_kill_anchored_urbs(&data->isoc_anchor);
1509
1510 __set_isoc_interface(hdev, 0);
1511 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1512 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1513 }
1514 }
1515
1516 static void btusb_waker(struct work_struct *work)
1517 {
1518 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1519 int err;
1520
1521 err = usb_autopm_get_interface(data->intf);
1522 if (err < 0)
1523 return;
1524
1525 usb_autopm_put_interface(data->intf);
1526 }
1527
1528 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1529 {
1530 struct sk_buff *skb;
1531 u8 val = 0x00;
1532
1533 BT_DBG("%s", hdev->name);
1534
1535 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1536 if (IS_ERR(skb))
1537 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1538 else
1539 kfree_skb(skb);
1540
1541 return 0;
1542 }
1543
1544 static int btusb_setup_csr(struct hci_dev *hdev)
1545 {
1546 struct hci_rp_read_local_version *rp;
1547 struct sk_buff *skb;
1548
1549 BT_DBG("%s", hdev->name);
1550
1551 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1552 HCI_INIT_TIMEOUT);
1553 if (IS_ERR(skb)) {
1554 int err = PTR_ERR(skb);
1555 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1556 return err;
1557 }
1558
1559 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1560 bt_dev_err(hdev, "CSR: Local version length mismatch");
1561 kfree_skb(skb);
1562 return -EIO;
1563 }
1564
1565 rp = (struct hci_rp_read_local_version *)skb->data;
1566
1567 /* Detect controllers which aren't real CSR ones. */
1568 if (le16_to_cpu(rp->manufacturer) != 10 ||
1569 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1570 /* Clear the reset quirk since this is not an actual
1571 * early Bluetooth 1.1 device from CSR.
1572 */
1573 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1574
1575 /* These fake CSR controllers have all a broken
1576 * stored link key handling and so just disable it.
1577 */
1578 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1579 }
1580
1581 kfree_skb(skb);
1582
1583 return 0;
1584 }
1585
1586 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1587 struct intel_version *ver)
1588 {
1589 const struct firmware *fw;
1590 char fwname[64];
1591 int ret;
1592
1593 snprintf(fwname, sizeof(fwname),
1594 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1595 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1596 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1597 ver->fw_build_ww, ver->fw_build_yy);
1598
1599 ret = request_firmware(&fw, fwname, &hdev->dev);
1600 if (ret < 0) {
1601 if (ret == -EINVAL) {
1602 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1603 ret);
1604 return NULL;
1605 }
1606
1607 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1608 fwname, ret);
1609
1610 /* If the correct firmware patch file is not found, use the
1611 * default firmware patch file instead
1612 */
1613 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1614 ver->hw_platform, ver->hw_variant);
1615 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1616 bt_dev_err(hdev, "failed to open default fw file: %s",
1617 fwname);
1618 return NULL;
1619 }
1620 }
1621
1622 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1623
1624 return fw;
1625 }
1626
1627 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1628 const struct firmware *fw,
1629 const u8 **fw_ptr, int *disable_patch)
1630 {
1631 struct sk_buff *skb;
1632 struct hci_command_hdr *cmd;
1633 const u8 *cmd_param;
1634 struct hci_event_hdr *evt = NULL;
1635 const u8 *evt_param = NULL;
1636 int remain = fw->size - (*fw_ptr - fw->data);
1637
1638 /* The first byte indicates the types of the patch command or event.
1639 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1640 * in the current firmware buffer doesn't start with 0x01 or
1641 * the size of remain buffer is smaller than HCI command header,
1642 * the firmware file is corrupted and it should stop the patching
1643 * process.
1644 */
1645 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1646 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1647 return -EINVAL;
1648 }
1649 (*fw_ptr)++;
1650 remain--;
1651
1652 cmd = (struct hci_command_hdr *)(*fw_ptr);
1653 *fw_ptr += sizeof(*cmd);
1654 remain -= sizeof(*cmd);
1655
1656 /* Ensure that the remain firmware data is long enough than the length
1657 * of command parameter. If not, the firmware file is corrupted.
1658 */
1659 if (remain < cmd->plen) {
1660 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1661 return -EFAULT;
1662 }
1663
1664 /* If there is a command that loads a patch in the firmware
1665 * file, then enable the patch upon success, otherwise just
1666 * disable the manufacturer mode, for example patch activation
1667 * is not required when the default firmware patch file is used
1668 * because there are no patch data to load.
1669 */
1670 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1671 *disable_patch = 0;
1672
1673 cmd_param = *fw_ptr;
1674 *fw_ptr += cmd->plen;
1675 remain -= cmd->plen;
1676
1677 /* This reads the expected events when the above command is sent to the
1678 * device. Some vendor commands expects more than one events, for
1679 * example command status event followed by vendor specific event.
1680 * For this case, it only keeps the last expected event. so the command
1681 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1682 * last expected event.
1683 */
1684 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1685 (*fw_ptr)++;
1686 remain--;
1687
1688 evt = (struct hci_event_hdr *)(*fw_ptr);
1689 *fw_ptr += sizeof(*evt);
1690 remain -= sizeof(*evt);
1691
1692 if (remain < evt->plen) {
1693 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1694 return -EFAULT;
1695 }
1696
1697 evt_param = *fw_ptr;
1698 *fw_ptr += evt->plen;
1699 remain -= evt->plen;
1700 }
1701
1702 /* Every HCI commands in the firmware file has its correspond event.
1703 * If event is not found or remain is smaller than zero, the firmware
1704 * file is corrupted.
1705 */
1706 if (!evt || !evt_param || remain < 0) {
1707 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1708 return -EFAULT;
1709 }
1710
1711 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1712 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1713 if (IS_ERR(skb)) {
1714 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1715 cmd->opcode, PTR_ERR(skb));
1716 return PTR_ERR(skb);
1717 }
1718
1719 /* It ensures that the returned event matches the event data read from
1720 * the firmware file. At fist, it checks the length and then
1721 * the contents of the event.
1722 */
1723 if (skb->len != evt->plen) {
1724 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1725 le16_to_cpu(cmd->opcode));
1726 kfree_skb(skb);
1727 return -EFAULT;
1728 }
1729
1730 if (memcmp(skb->data, evt_param, evt->plen)) {
1731 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1732 le16_to_cpu(cmd->opcode));
1733 kfree_skb(skb);
1734 return -EFAULT;
1735 }
1736 kfree_skb(skb);
1737
1738 return 0;
1739 }
1740
1741 static int btusb_setup_intel(struct hci_dev *hdev)
1742 {
1743 struct sk_buff *skb;
1744 const struct firmware *fw;
1745 const u8 *fw_ptr;
1746 int disable_patch, err;
1747 struct intel_version ver;
1748
1749 BT_DBG("%s", hdev->name);
1750
1751 /* The controller has a bug with the first HCI command sent to it
1752 * returning number of completed commands as zero. This would stall the
1753 * command processing in the Bluetooth core.
1754 *
1755 * As a workaround, send HCI Reset command first which will reset the
1756 * number of completed commands and allow normal command processing
1757 * from now on.
1758 */
1759 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1760 if (IS_ERR(skb)) {
1761 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1762 PTR_ERR(skb));
1763 return PTR_ERR(skb);
1764 }
1765 kfree_skb(skb);
1766
1767 /* Read Intel specific controller version first to allow selection of
1768 * which firmware file to load.
1769 *
1770 * The returned information are hardware variant and revision plus
1771 * firmware variant, revision and build number.
1772 */
1773 err = btintel_read_version(hdev, &ver);
1774 if (err)
1775 return err;
1776
1777 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1778 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1779 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1780 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1781
1782 /* fw_patch_num indicates the version of patch the device currently
1783 * have. If there is no patch data in the device, it is always 0x00.
1784 * So, if it is other than 0x00, no need to patch the device again.
1785 */
1786 if (ver.fw_patch_num) {
1787 bt_dev_info(hdev, "Intel device is already patched. "
1788 "patch num: %02x", ver.fw_patch_num);
1789 goto complete;
1790 }
1791
1792 /* Opens the firmware patch file based on the firmware version read
1793 * from the controller. If it fails to open the matching firmware
1794 * patch file, it tries to open the default firmware patch file.
1795 * If no patch file is found, allow the device to operate without
1796 * a patch.
1797 */
1798 fw = btusb_setup_intel_get_fw(hdev, &ver);
1799 if (!fw)
1800 goto complete;
1801 fw_ptr = fw->data;
1802
1803 /* Enable the manufacturer mode of the controller.
1804 * Only while this mode is enabled, the driver can download the
1805 * firmware patch data and configuration parameters.
1806 */
1807 err = btintel_enter_mfg(hdev);
1808 if (err) {
1809 release_firmware(fw);
1810 return err;
1811 }
1812
1813 disable_patch = 1;
1814
1815 /* The firmware data file consists of list of Intel specific HCI
1816 * commands and its expected events. The first byte indicates the
1817 * type of the message, either HCI command or HCI event.
1818 *
1819 * It reads the command and its expected event from the firmware file,
1820 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1821 * the returned event is compared with the event read from the firmware
1822 * file and it will continue until all the messages are downloaded to
1823 * the controller.
1824 *
1825 * Once the firmware patching is completed successfully,
1826 * the manufacturer mode is disabled with reset and activating the
1827 * downloaded patch.
1828 *
1829 * If the firmware patching fails, the manufacturer mode is
1830 * disabled with reset and deactivating the patch.
1831 *
1832 * If the default patch file is used, no reset is done when disabling
1833 * the manufacturer.
1834 */
1835 while (fw->size > fw_ptr - fw->data) {
1836 int ret;
1837
1838 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1839 &disable_patch);
1840 if (ret < 0)
1841 goto exit_mfg_deactivate;
1842 }
1843
1844 release_firmware(fw);
1845
1846 if (disable_patch)
1847 goto exit_mfg_disable;
1848
1849 /* Patching completed successfully and disable the manufacturer mode
1850 * with reset and activate the downloaded firmware patches.
1851 */
1852 err = btintel_exit_mfg(hdev, true, true);
1853 if (err)
1854 return err;
1855
1856 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1857
1858 goto complete;
1859
1860 exit_mfg_disable:
1861 /* Disable the manufacturer mode without reset */
1862 err = btintel_exit_mfg(hdev, false, false);
1863 if (err)
1864 return err;
1865
1866 bt_dev_info(hdev, "Intel firmware patch completed");
1867
1868 goto complete;
1869
1870 exit_mfg_deactivate:
1871 release_firmware(fw);
1872
1873 /* Patching failed. Disable the manufacturer mode with reset and
1874 * deactivate the downloaded firmware patches.
1875 */
1876 err = btintel_exit_mfg(hdev, true, false);
1877 if (err)
1878 return err;
1879
1880 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1881
1882 complete:
1883 /* Set the event mask for Intel specific vendor events. This enables
1884 * a few extra events that are useful during general operation.
1885 */
1886 btintel_set_event_mask_mfg(hdev, false);
1887
1888 btintel_check_bdaddr(hdev);
1889 return 0;
1890 }
1891
1892 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1893 {
1894 struct sk_buff *skb;
1895 struct hci_event_hdr *hdr;
1896 struct hci_ev_cmd_complete *evt;
1897
1898 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1899 if (!skb)
1900 return -ENOMEM;
1901
1902 hdr = skb_put(skb, sizeof(*hdr));
1903 hdr->evt = HCI_EV_CMD_COMPLETE;
1904 hdr->plen = sizeof(*evt) + 1;
1905
1906 evt = skb_put(skb, sizeof(*evt));
1907 evt->ncmd = 0x01;
1908 evt->opcode = cpu_to_le16(opcode);
1909
1910 skb_put_u8(skb, 0x00);
1911
1912 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1913
1914 return hci_recv_frame(hdev, skb);
1915 }
1916
1917 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1918 int count)
1919 {
1920 /* When the device is in bootloader mode, then it can send
1921 * events via the bulk endpoint. These events are treated the
1922 * same way as the ones received from the interrupt endpoint.
1923 */
1924 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1925 return btusb_recv_intr(data, buffer, count);
1926
1927 return btusb_recv_bulk(data, buffer, count);
1928 }
1929
1930 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1931 unsigned int len)
1932 {
1933 const struct intel_bootup *evt = ptr;
1934
1935 if (len != sizeof(*evt))
1936 return;
1937
1938 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1939 smp_mb__after_atomic();
1940 wake_up_bit(&data->flags, BTUSB_BOOTING);
1941 }
1942 }
1943
1944 static void btusb_intel_secure_send_result(struct btusb_data *data,
1945 const void *ptr, unsigned int len)
1946 {
1947 const struct intel_secure_send_result *evt = ptr;
1948
1949 if (len != sizeof(*evt))
1950 return;
1951
1952 if (evt->result)
1953 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1954
1955 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1956 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1957 smp_mb__after_atomic();
1958 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1959 }
1960 }
1961
1962 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1963 {
1964 struct btusb_data *data = hci_get_drvdata(hdev);
1965
1966 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1967 struct hci_event_hdr *hdr = (void *)skb->data;
1968
1969 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1970 hdr->plen > 0) {
1971 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1972 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1973
1974 switch (skb->data[2]) {
1975 case 0x02:
1976 /* When switching to the operational firmware
1977 * the device sends a vendor specific event
1978 * indicating that the bootup completed.
1979 */
1980 btusb_intel_bootup(data, ptr, len);
1981 break;
1982 case 0x06:
1983 /* When the firmware loading completes the
1984 * device sends out a vendor specific event
1985 * indicating the result of the firmware
1986 * loading.
1987 */
1988 btusb_intel_secure_send_result(data, ptr, len);
1989 break;
1990 }
1991 }
1992 }
1993
1994 return hci_recv_frame(hdev, skb);
1995 }
1996
1997 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1998 {
1999 struct btusb_data *data = hci_get_drvdata(hdev);
2000 struct urb *urb;
2001
2002 BT_DBG("%s", hdev->name);
2003
2004 switch (hci_skb_pkt_type(skb)) {
2005 case HCI_COMMAND_PKT:
2006 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2007 struct hci_command_hdr *cmd = (void *)skb->data;
2008 __u16 opcode = le16_to_cpu(cmd->opcode);
2009
2010 /* When in bootloader mode and the command 0xfc09
2011 * is received, it needs to be send down the
2012 * bulk endpoint. So allocate a bulk URB instead.
2013 */
2014 if (opcode == 0xfc09)
2015 urb = alloc_bulk_urb(hdev, skb);
2016 else
2017 urb = alloc_ctrl_urb(hdev, skb);
2018
2019 /* When the 0xfc01 command is issued to boot into
2020 * the operational firmware, it will actually not
2021 * send a command complete event. To keep the flow
2022 * control working inject that event here.
2023 */
2024 if (opcode == 0xfc01)
2025 inject_cmd_complete(hdev, opcode);
2026 } else {
2027 urb = alloc_ctrl_urb(hdev, skb);
2028 }
2029 if (IS_ERR(urb))
2030 return PTR_ERR(urb);
2031
2032 hdev->stat.cmd_tx++;
2033 return submit_or_queue_tx_urb(hdev, urb);
2034
2035 case HCI_ACLDATA_PKT:
2036 urb = alloc_bulk_urb(hdev, skb);
2037 if (IS_ERR(urb))
2038 return PTR_ERR(urb);
2039
2040 hdev->stat.acl_tx++;
2041 return submit_or_queue_tx_urb(hdev, urb);
2042
2043 case HCI_SCODATA_PKT:
2044 if (hci_conn_num(hdev, SCO_LINK) < 1)
2045 return -ENODEV;
2046
2047 urb = alloc_isoc_urb(hdev, skb);
2048 if (IS_ERR(urb))
2049 return PTR_ERR(urb);
2050
2051 hdev->stat.sco_tx++;
2052 return submit_tx_urb(hdev, urb);
2053 }
2054
2055 return -EILSEQ;
2056 }
2057
2058 static int btusb_setup_intel_new(struct hci_dev *hdev)
2059 {
2060 struct btusb_data *data = hci_get_drvdata(hdev);
2061 struct intel_version ver;
2062 struct intel_boot_params params;
2063 const struct firmware *fw;
2064 u32 boot_param;
2065 char fwname[64];
2066 ktime_t calltime, delta, rettime;
2067 unsigned long long duration;
2068 int err;
2069
2070 BT_DBG("%s", hdev->name);
2071
2072 /* Set the default boot parameter to 0x0 and it is updated to
2073 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2074 * command while downloading the firmware.
2075 */
2076 boot_param = 0x00000000;
2077
2078 calltime = ktime_get();
2079
2080 /* Read the Intel version information to determine if the device
2081 * is in bootloader mode or if it already has operational firmware
2082 * loaded.
2083 */
2084 err = btintel_read_version(hdev, &ver);
2085 if (err)
2086 return err;
2087
2088 /* The hardware platform number has a fixed value of 0x37 and
2089 * for now only accept this single value.
2090 */
2091 if (ver.hw_platform != 0x37) {
2092 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2093 ver.hw_platform);
2094 return -EINVAL;
2095 }
2096
2097 /* Check for supported iBT hardware variants of this firmware
2098 * loading method.
2099 *
2100 * This check has been put in place to ensure correct forward
2101 * compatibility options when newer hardware variants come along.
2102 */
2103 switch (ver.hw_variant) {
2104 case 0x0b: /* SfP */
2105 case 0x0c: /* WsP */
2106 case 0x11: /* JfP */
2107 case 0x12: /* ThP */
2108 case 0x13: /* HrP */
2109 case 0x14: /* QnJ, IcP */
2110 break;
2111 default:
2112 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2113 ver.hw_variant);
2114 return -EINVAL;
2115 }
2116
2117 btintel_version_info(hdev, &ver);
2118
2119 /* The firmware variant determines if the device is in bootloader
2120 * mode or is running operational firmware. The value 0x06 identifies
2121 * the bootloader and the value 0x23 identifies the operational
2122 * firmware.
2123 *
2124 * When the operational firmware is already present, then only
2125 * the check for valid Bluetooth device address is needed. This
2126 * determines if the device will be added as configured or
2127 * unconfigured controller.
2128 *
2129 * It is not possible to use the Secure Boot Parameters in this
2130 * case since that command is only available in bootloader mode.
2131 */
2132 if (ver.fw_variant == 0x23) {
2133 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2134 btintel_check_bdaddr(hdev);
2135 return 0;
2136 }
2137
2138 /* If the device is not in bootloader mode, then the only possible
2139 * choice is to return an error and abort the device initialization.
2140 */
2141 if (ver.fw_variant != 0x06) {
2142 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2143 ver.fw_variant);
2144 return -ENODEV;
2145 }
2146
2147 /* Read the secure boot parameters to identify the operating
2148 * details of the bootloader.
2149 */
2150 err = btintel_read_boot_params(hdev, &params);
2151 if (err)
2152 return err;
2153
2154 /* It is required that every single firmware fragment is acknowledged
2155 * with a command complete event. If the boot parameters indicate
2156 * that this bootloader does not send them, then abort the setup.
2157 */
2158 if (params.limited_cce != 0x00) {
2159 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2160 params.limited_cce);
2161 return -EINVAL;
2162 }
2163
2164 /* If the OTP has no valid Bluetooth device address, then there will
2165 * also be no valid address for the operational firmware.
2166 */
2167 if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
2168 bt_dev_info(hdev, "No device address configured");
2169 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2170 }
2171
2172 /* With this Intel bootloader only the hardware variant and device
2173 * revision information are used to select the right firmware for SfP
2174 * and WsP.
2175 *
2176 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2177 *
2178 * Currently the supported hardware variants are:
2179 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2180 * 12 (0x0c) for iBT3.5 (WsP)
2181 *
2182 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2183 * variant, HW revision and FW revision, as these are dependent on CNVi
2184 * and RF Combination.
2185 *
2186 * 17 (0x11) for iBT3.5 (JfP)
2187 * 18 (0x12) for iBT3.5 (ThP)
2188 *
2189 * The firmware file name for these will be
2190 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2191 *
2192 */
2193 switch (ver.hw_variant) {
2194 case 0x0b: /* SfP */
2195 case 0x0c: /* WsP */
2196 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2197 le16_to_cpu(ver.hw_variant),
2198 le16_to_cpu(params.dev_revid));
2199 break;
2200 case 0x11: /* JfP */
2201 case 0x12: /* ThP */
2202 case 0x13: /* HrP */
2203 case 0x14: /* QnJ, IcP */
2204 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2205 le16_to_cpu(ver.hw_variant),
2206 le16_to_cpu(ver.hw_revision),
2207 le16_to_cpu(ver.fw_revision));
2208 break;
2209 default:
2210 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2211 return -EINVAL;
2212 }
2213
2214 err = request_firmware(&fw, fwname, &hdev->dev);
2215 if (err < 0) {
2216 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2217 return err;
2218 }
2219
2220 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2221
2222 /* Save the DDC file name for later use to apply once the firmware
2223 * downloading is done.
2224 */
2225 switch (ver.hw_variant) {
2226 case 0x0b: /* SfP */
2227 case 0x0c: /* WsP */
2228 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2229 le16_to_cpu(ver.hw_variant),
2230 le16_to_cpu(params.dev_revid));
2231 break;
2232 case 0x11: /* JfP */
2233 case 0x12: /* ThP */
2234 case 0x13: /* HrP */
2235 case 0x14: /* QnJ, IcP */
2236 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2237 le16_to_cpu(ver.hw_variant),
2238 le16_to_cpu(ver.hw_revision),
2239 le16_to_cpu(ver.fw_revision));
2240 break;
2241 default:
2242 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2243 return -EINVAL;
2244 }
2245
2246 if (fw->size < 644) {
2247 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2248 fw->size);
2249 err = -EBADF;
2250 goto done;
2251 }
2252
2253 set_bit(BTUSB_DOWNLOADING, &data->flags);
2254
2255 /* Start firmware downloading and get boot parameter */
2256 err = btintel_download_firmware(hdev, fw, &boot_param);
2257 if (err < 0)
2258 goto done;
2259
2260 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2261
2262 bt_dev_info(hdev, "Waiting for firmware download to complete");
2263
2264 /* Before switching the device into operational mode and with that
2265 * booting the loaded firmware, wait for the bootloader notification
2266 * that all fragments have been successfully received.
2267 *
2268 * When the event processing receives the notification, then the
2269 * BTUSB_DOWNLOADING flag will be cleared.
2270 *
2271 * The firmware loading should not take longer than 5 seconds
2272 * and thus just timeout if that happens and fail the setup
2273 * of this device.
2274 */
2275 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2276 TASK_INTERRUPTIBLE,
2277 msecs_to_jiffies(5000));
2278 if (err == -EINTR) {
2279 bt_dev_err(hdev, "Firmware loading interrupted");
2280 goto done;
2281 }
2282
2283 if (err) {
2284 bt_dev_err(hdev, "Firmware loading timeout");
2285 err = -ETIMEDOUT;
2286 goto done;
2287 }
2288
2289 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2290 bt_dev_err(hdev, "Firmware loading failed");
2291 err = -ENOEXEC;
2292 goto done;
2293 }
2294
2295 rettime = ktime_get();
2296 delta = ktime_sub(rettime, calltime);
2297 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2298
2299 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2300
2301 done:
2302 release_firmware(fw);
2303
2304 if (err < 0)
2305 return err;
2306
2307 calltime = ktime_get();
2308
2309 set_bit(BTUSB_BOOTING, &data->flags);
2310
2311 err = btintel_send_intel_reset(hdev, boot_param);
2312 if (err)
2313 return err;
2314
2315 /* The bootloader will not indicate when the device is ready. This
2316 * is done by the operational firmware sending bootup notification.
2317 *
2318 * Booting into operational firmware should not take longer than
2319 * 1 second. However if that happens, then just fail the setup
2320 * since something went wrong.
2321 */
2322 bt_dev_info(hdev, "Waiting for device to boot");
2323
2324 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2325 TASK_INTERRUPTIBLE,
2326 msecs_to_jiffies(1000));
2327
2328 if (err == -EINTR) {
2329 bt_dev_err(hdev, "Device boot interrupted");
2330 return -EINTR;
2331 }
2332
2333 if (err) {
2334 bt_dev_err(hdev, "Device boot timeout");
2335 return -ETIMEDOUT;
2336 }
2337
2338 rettime = ktime_get();
2339 delta = ktime_sub(rettime, calltime);
2340 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2341
2342 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2343
2344 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2345
2346 /* Once the device is running in operational mode, it needs to apply
2347 * the device configuration (DDC) parameters.
2348 *
2349 * The device can work without DDC parameters, so even if it fails
2350 * to load the file, no need to fail the setup.
2351 */
2352 btintel_load_ddc_config(hdev, fwname);
2353
2354 /* Set the event mask for Intel specific vendor events. This enables
2355 * a few extra events that are useful during general operation. It
2356 * does not enable any debugging related events.
2357 *
2358 * The device will function correctly without these events enabled
2359 * and thus no need to fail the setup.
2360 */
2361 btintel_set_event_mask(hdev, false);
2362
2363 return 0;
2364 }
2365
2366 static int btusb_shutdown_intel(struct hci_dev *hdev)
2367 {
2368 struct sk_buff *skb;
2369 long ret;
2370
2371 /* In the shutdown sequence where Bluetooth is turned off followed
2372 * by WiFi being turned off, turning WiFi back on causes issue with
2373 * the RF calibration.
2374 *
2375 * To ensure that any RF activity has been stopped, issue HCI Reset
2376 * command to clear all ongoing activity including advertising,
2377 * scanning etc.
2378 */
2379 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2380 if (IS_ERR(skb)) {
2381 ret = PTR_ERR(skb);
2382 bt_dev_err(hdev, "HCI reset during shutdown failed");
2383 return ret;
2384 }
2385 kfree_skb(skb);
2386
2387 /* Some platforms have an issue with BT LED when the interface is
2388 * down or BT radio is turned off, which takes 5 seconds to BT LED
2389 * goes off. This command turns off the BT LED immediately.
2390 */
2391 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2392 if (IS_ERR(skb)) {
2393 ret = PTR_ERR(skb);
2394 bt_dev_err(hdev, "turning off Intel device LED failed");
2395 return ret;
2396 }
2397 kfree_skb(skb);
2398
2399 return 0;
2400 }
2401
2402 #ifdef CONFIG_PM
2403 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2404 static int marvell_config_oob_wake(struct hci_dev *hdev)
2405 {
2406 struct sk_buff *skb;
2407 struct btusb_data *data = hci_get_drvdata(hdev);
2408 struct device *dev = &data->udev->dev;
2409 u16 pin, gap, opcode;
2410 int ret;
2411 u8 cmd[5];
2412
2413 /* Move on if no wakeup pin specified */
2414 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2415 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2416 return 0;
2417
2418 /* Vendor specific command to configure a GPIO as wake-up pin */
2419 opcode = hci_opcode_pack(0x3F, 0x59);
2420 cmd[0] = opcode & 0xFF;
2421 cmd[1] = opcode >> 8;
2422 cmd[2] = 2; /* length of parameters that follow */
2423 cmd[3] = pin;
2424 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2425
2426 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2427 if (!skb) {
2428 bt_dev_err(hdev, "%s: No memory\n", __func__);
2429 return -ENOMEM;
2430 }
2431
2432 skb_put_data(skb, cmd, sizeof(cmd));
2433 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2434
2435 ret = btusb_send_frame(hdev, skb);
2436 if (ret) {
2437 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2438 kfree_skb(skb);
2439 return ret;
2440 }
2441
2442 return 0;
2443 }
2444 #endif
2445
2446 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2447 const bdaddr_t *bdaddr)
2448 {
2449 struct sk_buff *skb;
2450 u8 buf[8];
2451 long ret;
2452
2453 buf[0] = 0xfe;
2454 buf[1] = sizeof(bdaddr_t);
2455 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2456
2457 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2458 if (IS_ERR(skb)) {
2459 ret = PTR_ERR(skb);
2460 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2461 ret);
2462 return ret;
2463 }
2464 kfree_skb(skb);
2465
2466 return 0;
2467 }
2468
2469 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2470 const bdaddr_t *bdaddr)
2471 {
2472 struct sk_buff *skb;
2473 u8 buf[10];
2474 long ret;
2475
2476 buf[0] = 0x01;
2477 buf[1] = 0x01;
2478 buf[2] = 0x00;
2479 buf[3] = sizeof(bdaddr_t);
2480 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2481
2482 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2483 if (IS_ERR(skb)) {
2484 ret = PTR_ERR(skb);
2485 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2486 return ret;
2487 }
2488 kfree_skb(skb);
2489
2490 return 0;
2491 }
2492
2493 #define QCA_DFU_PACKET_LEN 4096
2494
2495 #define QCA_GET_TARGET_VERSION 0x09
2496 #define QCA_CHECK_STATUS 0x05
2497 #define QCA_DFU_DOWNLOAD 0x01
2498
2499 #define QCA_SYSCFG_UPDATED 0x40
2500 #define QCA_PATCH_UPDATED 0x80
2501 #define QCA_DFU_TIMEOUT 3000
2502
2503 struct qca_version {
2504 __le32 rom_version;
2505 __le32 patch_version;
2506 __le32 ram_version;
2507 __le32 ref_clock;
2508 __u8 reserved[4];
2509 } __packed;
2510
2511 struct qca_rampatch_version {
2512 __le16 rom_version;
2513 __le16 patch_version;
2514 } __packed;
2515
2516 struct qca_device_info {
2517 u32 rom_version;
2518 u8 rampatch_hdr; /* length of header in rampatch */
2519 u8 nvm_hdr; /* length of header in NVM */
2520 u8 ver_offset; /* offset of version structure in rampatch */
2521 };
2522
2523 static const struct qca_device_info qca_devices_table[] = {
2524 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2525 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2526 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2527 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2528 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2529 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2530 };
2531
2532 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
2533 void *data, u16 size)
2534 {
2535 int pipe, err;
2536 u8 *buf;
2537
2538 buf = kmalloc(size, GFP_KERNEL);
2539 if (!buf)
2540 return -ENOMEM;
2541
2542 /* Found some of USB hosts have IOT issues with ours so that we should
2543 * not wait until HCI layer is ready.
2544 */
2545 pipe = usb_rcvctrlpipe(udev, 0);
2546 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2547 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2548 if (err < 0) {
2549 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
2550 goto done;
2551 }
2552
2553 memcpy(data, buf, size);
2554
2555 done:
2556 kfree(buf);
2557
2558 return err;
2559 }
2560
2561 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2562 const struct firmware *firmware,
2563 size_t hdr_size)
2564 {
2565 struct btusb_data *btdata = hci_get_drvdata(hdev);
2566 struct usb_device *udev = btdata->udev;
2567 size_t count, size, sent = 0;
2568 int pipe, len, err;
2569 u8 *buf;
2570
2571 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2572 if (!buf)
2573 return -ENOMEM;
2574
2575 count = firmware->size;
2576
2577 size = min_t(size_t, count, hdr_size);
2578 memcpy(buf, firmware->data, size);
2579
2580 /* USB patches should go down to controller through USB path
2581 * because binary format fits to go down through USB channel.
2582 * USB control path is for patching headers and USB bulk is for
2583 * patch body.
2584 */
2585 pipe = usb_sndctrlpipe(udev, 0);
2586 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2587 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2588 if (err < 0) {
2589 bt_dev_err(hdev, "Failed to send headers (%d)", err);
2590 goto done;
2591 }
2592
2593 sent += size;
2594 count -= size;
2595
2596 while (count) {
2597 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2598
2599 memcpy(buf, firmware->data + sent, size);
2600
2601 pipe = usb_sndbulkpipe(udev, 0x02);
2602 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2603 QCA_DFU_TIMEOUT);
2604 if (err < 0) {
2605 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2606 sent, firmware->size, err);
2607 break;
2608 }
2609
2610 if (size != len) {
2611 bt_dev_err(hdev, "Failed to get bulk buffer");
2612 err = -EILSEQ;
2613 break;
2614 }
2615
2616 sent += size;
2617 count -= size;
2618 }
2619
2620 done:
2621 kfree(buf);
2622 return err;
2623 }
2624
2625 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2626 struct qca_version *ver,
2627 const struct qca_device_info *info)
2628 {
2629 struct qca_rampatch_version *rver;
2630 const struct firmware *fw;
2631 u32 ver_rom, ver_patch;
2632 u16 rver_rom, rver_patch;
2633 char fwname[64];
2634 int err;
2635
2636 ver_rom = le32_to_cpu(ver->rom_version);
2637 ver_patch = le32_to_cpu(ver->patch_version);
2638
2639 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2640
2641 err = request_firmware(&fw, fwname, &hdev->dev);
2642 if (err) {
2643 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2644 fwname, err);
2645 return err;
2646 }
2647
2648 bt_dev_info(hdev, "using rampatch file: %s", fwname);
2649
2650 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2651 rver_rom = le16_to_cpu(rver->rom_version);
2652 rver_patch = le16_to_cpu(rver->patch_version);
2653
2654 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2655 "firmware rome 0x%x build 0x%x",
2656 rver_rom, rver_patch, ver_rom, ver_patch);
2657
2658 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2659 bt_dev_err(hdev, "rampatch file version did not match with firmware");
2660 err = -EINVAL;
2661 goto done;
2662 }
2663
2664 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2665
2666 done:
2667 release_firmware(fw);
2668
2669 return err;
2670 }
2671
2672 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2673 struct qca_version *ver,
2674 const struct qca_device_info *info)
2675 {
2676 const struct firmware *fw;
2677 char fwname[64];
2678 int err;
2679
2680 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2681 le32_to_cpu(ver->rom_version));
2682
2683 err = request_firmware(&fw, fwname, &hdev->dev);
2684 if (err) {
2685 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2686 fwname, err);
2687 return err;
2688 }
2689
2690 bt_dev_info(hdev, "using NVM file: %s", fwname);
2691
2692 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2693
2694 release_firmware(fw);
2695
2696 return err;
2697 }
2698
2699 /* identify the ROM version and check whether patches are needed */
2700 static bool btusb_qca_need_patch(struct usb_device *udev)
2701 {
2702 struct qca_version ver;
2703
2704 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
2705 sizeof(ver)) < 0)
2706 return false;
2707 /* only low ROM versions need patches */
2708 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
2709 }
2710
2711 static int btusb_setup_qca(struct hci_dev *hdev)
2712 {
2713 struct btusb_data *btdata = hci_get_drvdata(hdev);
2714 struct usb_device *udev = btdata->udev;
2715 const struct qca_device_info *info = NULL;
2716 struct qca_version ver;
2717 u32 ver_rom;
2718 u8 status;
2719 int i, err;
2720
2721 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
2722 sizeof(ver));
2723 if (err < 0)
2724 return err;
2725
2726 ver_rom = le32_to_cpu(ver.rom_version);
2727 /* Don't care about high ROM versions */
2728 if (ver_rom & ~0xffffU)
2729 return 0;
2730
2731 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2732 if (ver_rom == qca_devices_table[i].rom_version)
2733 info = &qca_devices_table[i];
2734 }
2735 if (!info) {
2736 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
2737 return -ENODEV;
2738 }
2739
2740 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
2741 sizeof(status));
2742 if (err < 0)
2743 return err;
2744
2745 if (!(status & QCA_PATCH_UPDATED)) {
2746 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2747 if (err < 0)
2748 return err;
2749 }
2750
2751 if (!(status & QCA_SYSCFG_UPDATED)) {
2752 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2753 if (err < 0)
2754 return err;
2755 }
2756
2757 return 0;
2758 }
2759
2760 #ifdef CONFIG_BT_HCIBTUSB_BCM
2761 static inline int __set_diag_interface(struct hci_dev *hdev)
2762 {
2763 struct btusb_data *data = hci_get_drvdata(hdev);
2764 struct usb_interface *intf = data->diag;
2765 int i;
2766
2767 if (!data->diag)
2768 return -ENODEV;
2769
2770 data->diag_tx_ep = NULL;
2771 data->diag_rx_ep = NULL;
2772
2773 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2774 struct usb_endpoint_descriptor *ep_desc;
2775
2776 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2777
2778 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2779 data->diag_tx_ep = ep_desc;
2780 continue;
2781 }
2782
2783 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2784 data->diag_rx_ep = ep_desc;
2785 continue;
2786 }
2787 }
2788
2789 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2790 bt_dev_err(hdev, "invalid diagnostic descriptors");
2791 return -ENODEV;
2792 }
2793
2794 return 0;
2795 }
2796
2797 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2798 {
2799 struct btusb_data *data = hci_get_drvdata(hdev);
2800 struct sk_buff *skb;
2801 struct urb *urb;
2802 unsigned int pipe;
2803
2804 if (!data->diag_tx_ep)
2805 return ERR_PTR(-ENODEV);
2806
2807 urb = usb_alloc_urb(0, GFP_KERNEL);
2808 if (!urb)
2809 return ERR_PTR(-ENOMEM);
2810
2811 skb = bt_skb_alloc(2, GFP_KERNEL);
2812 if (!skb) {
2813 usb_free_urb(urb);
2814 return ERR_PTR(-ENOMEM);
2815 }
2816
2817 skb_put_u8(skb, 0xf0);
2818 skb_put_u8(skb, enable);
2819
2820 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2821
2822 usb_fill_bulk_urb(urb, data->udev, pipe,
2823 skb->data, skb->len, btusb_tx_complete, skb);
2824
2825 skb->dev = (void *)hdev;
2826
2827 return urb;
2828 }
2829
2830 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2831 {
2832 struct btusb_data *data = hci_get_drvdata(hdev);
2833 struct urb *urb;
2834
2835 if (!data->diag)
2836 return -ENODEV;
2837
2838 if (!test_bit(HCI_RUNNING, &hdev->flags))
2839 return -ENETDOWN;
2840
2841 urb = alloc_diag_urb(hdev, enable);
2842 if (IS_ERR(urb))
2843 return PTR_ERR(urb);
2844
2845 return submit_or_queue_tx_urb(hdev, urb);
2846 }
2847 #endif
2848
2849 #ifdef CONFIG_PM
2850 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2851 {
2852 struct btusb_data *data = priv;
2853
2854 pm_wakeup_event(&data->udev->dev, 0);
2855 pm_system_wakeup();
2856
2857 /* Disable only if not already disabled (keep it balanced) */
2858 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2859 disable_irq_nosync(irq);
2860 disable_irq_wake(irq);
2861 }
2862 return IRQ_HANDLED;
2863 }
2864
2865 static const struct of_device_id btusb_match_table[] = {
2866 { .compatible = "usb1286,204e" },
2867 { }
2868 };
2869 MODULE_DEVICE_TABLE(of, btusb_match_table);
2870
2871 /* Use an oob wakeup pin? */
2872 static int btusb_config_oob_wake(struct hci_dev *hdev)
2873 {
2874 struct btusb_data *data = hci_get_drvdata(hdev);
2875 struct device *dev = &data->udev->dev;
2876 int irq, ret;
2877
2878 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2879
2880 if (!of_match_device(btusb_match_table, dev))
2881 return 0;
2882
2883 /* Move on if no IRQ specified */
2884 irq = of_irq_get_byname(dev->of_node, "wakeup");
2885 if (irq <= 0) {
2886 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2887 return 0;
2888 }
2889
2890 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2891 0, "OOB Wake-on-BT", data);
2892 if (ret) {
2893 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2894 return ret;
2895 }
2896
2897 ret = device_init_wakeup(dev, true);
2898 if (ret) {
2899 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2900 return ret;
2901 }
2902
2903 data->oob_wake_irq = irq;
2904 disable_irq(irq);
2905 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2906 return 0;
2907 }
2908 #endif
2909
2910 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
2911 {
2912 if (dmi_check_system(btusb_needs_reset_resume_table))
2913 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
2914 }
2915
2916 static int btusb_probe(struct usb_interface *intf,
2917 const struct usb_device_id *id)
2918 {
2919 struct usb_endpoint_descriptor *ep_desc;
2920 struct btusb_data *data;
2921 struct hci_dev *hdev;
2922 unsigned ifnum_base;
2923 int i, err;
2924
2925 BT_DBG("intf %p id %p", intf, id);
2926
2927 /* interface numbers are hardcoded in the spec */
2928 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2929 if (!(id->driver_info & BTUSB_IFNUM_2))
2930 return -ENODEV;
2931 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2932 return -ENODEV;
2933 }
2934
2935 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2936
2937 if (!id->driver_info) {
2938 const struct usb_device_id *match;
2939
2940 match = usb_match_id(intf, blacklist_table);
2941 if (match)
2942 id = match;
2943 }
2944
2945 if (id->driver_info == BTUSB_IGNORE)
2946 return -ENODEV;
2947
2948 if (id->driver_info & BTUSB_ATH3012) {
2949 struct usb_device *udev = interface_to_usbdev(intf);
2950
2951 /* Old firmware would otherwise let ath3k driver load
2952 * patch and sysconfig files
2953 */
2954 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
2955 !btusb_qca_need_patch(udev))
2956 return -ENODEV;
2957 }
2958
2959 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2960 if (!data)
2961 return -ENOMEM;
2962
2963 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2964 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2965
2966 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2967 data->intr_ep = ep_desc;
2968 continue;
2969 }
2970
2971 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2972 data->bulk_tx_ep = ep_desc;
2973 continue;
2974 }
2975
2976 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2977 data->bulk_rx_ep = ep_desc;
2978 continue;
2979 }
2980 }
2981
2982 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2983 return -ENODEV;
2984
2985 if (id->driver_info & BTUSB_AMP) {
2986 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2987 data->cmdreq = 0x2b;
2988 } else {
2989 data->cmdreq_type = USB_TYPE_CLASS;
2990 data->cmdreq = 0x00;
2991 }
2992
2993 data->udev = interface_to_usbdev(intf);
2994 data->intf = intf;
2995
2996 INIT_WORK(&data->work, btusb_work);
2997 INIT_WORK(&data->waker, btusb_waker);
2998 init_usb_anchor(&data->deferred);
2999 init_usb_anchor(&data->tx_anchor);
3000 spin_lock_init(&data->txlock);
3001
3002 init_usb_anchor(&data->intr_anchor);
3003 init_usb_anchor(&data->bulk_anchor);
3004 init_usb_anchor(&data->isoc_anchor);
3005 init_usb_anchor(&data->diag_anchor);
3006 spin_lock_init(&data->rxlock);
3007
3008 if (id->driver_info & BTUSB_INTEL_NEW) {
3009 data->recv_event = btusb_recv_event_intel;
3010 data->recv_bulk = btusb_recv_bulk_intel;
3011 set_bit(BTUSB_BOOTLOADER, &data->flags);
3012 } else {
3013 data->recv_event = hci_recv_frame;
3014 data->recv_bulk = btusb_recv_bulk;
3015 }
3016
3017 hdev = hci_alloc_dev();
3018 if (!hdev)
3019 return -ENOMEM;
3020
3021 hdev->bus = HCI_USB;
3022 hci_set_drvdata(hdev, data);
3023
3024 if (id->driver_info & BTUSB_AMP)
3025 hdev->dev_type = HCI_AMP;
3026 else
3027 hdev->dev_type = HCI_PRIMARY;
3028
3029 data->hdev = hdev;
3030
3031 SET_HCIDEV_DEV(hdev, &intf->dev);
3032
3033 hdev->open = btusb_open;
3034 hdev->close = btusb_close;
3035 hdev->flush = btusb_flush;
3036 hdev->send = btusb_send_frame;
3037 hdev->notify = btusb_notify;
3038
3039 #ifdef CONFIG_PM
3040 err = btusb_config_oob_wake(hdev);
3041 if (err)
3042 goto out_free_dev;
3043
3044 /* Marvell devices may need a specific chip configuration */
3045 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3046 err = marvell_config_oob_wake(hdev);
3047 if (err)
3048 goto out_free_dev;
3049 }
3050 #endif
3051 if (id->driver_info & BTUSB_CW6622)
3052 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3053
3054 if (id->driver_info & BTUSB_BCM2045)
3055 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3056
3057 if (id->driver_info & BTUSB_BCM92035)
3058 hdev->setup = btusb_setup_bcm92035;
3059
3060 #ifdef CONFIG_BT_HCIBTUSB_BCM
3061 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3062 hdev->manufacturer = 15;
3063 hdev->setup = btbcm_setup_patchram;
3064 hdev->set_diag = btusb_bcm_set_diag;
3065 hdev->set_bdaddr = btbcm_set_bdaddr;
3066
3067 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3068 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3069 }
3070
3071 if (id->driver_info & BTUSB_BCM_APPLE) {
3072 hdev->manufacturer = 15;
3073 hdev->setup = btbcm_setup_apple;
3074 hdev->set_diag = btusb_bcm_set_diag;
3075
3076 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3077 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3078 }
3079 #endif
3080
3081 if (id->driver_info & BTUSB_INTEL) {
3082 hdev->manufacturer = 2;
3083 hdev->setup = btusb_setup_intel;
3084 hdev->shutdown = btusb_shutdown_intel;
3085 hdev->set_diag = btintel_set_diag_mfg;
3086 hdev->set_bdaddr = btintel_set_bdaddr;
3087 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3088 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3089 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3090 }
3091
3092 if (id->driver_info & BTUSB_INTEL_NEW) {
3093 hdev->manufacturer = 2;
3094 hdev->send = btusb_send_frame_intel;
3095 hdev->setup = btusb_setup_intel_new;
3096 hdev->hw_error = btintel_hw_error;
3097 hdev->set_diag = btintel_set_diag;
3098 hdev->set_bdaddr = btintel_set_bdaddr;
3099 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3100 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3101 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3102 }
3103
3104 if (id->driver_info & BTUSB_MARVELL)
3105 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3106
3107 if (id->driver_info & BTUSB_SWAVE) {
3108 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3109 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3110 }
3111
3112 if (id->driver_info & BTUSB_INTEL_BOOT) {
3113 hdev->manufacturer = 2;
3114 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3115 }
3116
3117 if (id->driver_info & BTUSB_ATH3012) {
3118 data->setup_on_usb = btusb_setup_qca;
3119 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3120 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3121 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3122 }
3123
3124 if (id->driver_info & BTUSB_QCA_ROME) {
3125 data->setup_on_usb = btusb_setup_qca;
3126 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3127 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3128 btusb_check_needs_reset_resume(intf);
3129 }
3130
3131 #ifdef CONFIG_BT_HCIBTUSB_RTL
3132 if (id->driver_info & BTUSB_REALTEK) {
3133 hdev->setup = btrtl_setup_realtek;
3134
3135 /* Realtek devices lose their updated firmware over suspend,
3136 * but the USB hub doesn't notice any status change.
3137 * Explicitly request a device reset on resume.
3138 */
3139 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3140 }
3141 #endif
3142
3143 if (id->driver_info & BTUSB_AMP) {
3144 /* AMP controllers do not support SCO packets */
3145 data->isoc = NULL;
3146 } else {
3147 /* Interface orders are hardcoded in the specification */
3148 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3149 data->isoc_ifnum = ifnum_base + 1;
3150 }
3151
3152 if (!reset)
3153 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3154
3155 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3156 if (!disable_scofix)
3157 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3158 }
3159
3160 if (id->driver_info & BTUSB_BROKEN_ISOC)
3161 data->isoc = NULL;
3162
3163 if (id->driver_info & BTUSB_DIGIANSWER) {
3164 data->cmdreq_type = USB_TYPE_VENDOR;
3165 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3166 }
3167
3168 if (id->driver_info & BTUSB_CSR) {
3169 struct usb_device *udev = data->udev;
3170 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3171
3172 /* Old firmware would otherwise execute USB reset */
3173 if (bcdDevice < 0x117)
3174 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3175
3176 /* Fake CSR devices with broken commands */
3177 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3178 hdev->setup = btusb_setup_csr;
3179
3180 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3181 }
3182
3183 if (id->driver_info & BTUSB_SNIFFER) {
3184 struct usb_device *udev = data->udev;
3185
3186 /* New sniffer firmware has crippled HCI interface */
3187 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3188 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3189 }
3190
3191 if (id->driver_info & BTUSB_INTEL_BOOT) {
3192 /* A bug in the bootloader causes that interrupt interface is
3193 * only enabled after receiving SetInterface(0, AltSetting=0).
3194 */
3195 err = usb_set_interface(data->udev, 0, 0);
3196 if (err < 0) {
3197 BT_ERR("failed to set interface 0, alt 0 %d", err);
3198 goto out_free_dev;
3199 }
3200 }
3201
3202 if (data->isoc) {
3203 err = usb_driver_claim_interface(&btusb_driver,
3204 data->isoc, data);
3205 if (err < 0)
3206 goto out_free_dev;
3207 }
3208
3209 #ifdef CONFIG_BT_HCIBTUSB_BCM
3210 if (data->diag) {
3211 if (!usb_driver_claim_interface(&btusb_driver,
3212 data->diag, data))
3213 __set_diag_interface(hdev);
3214 else
3215 data->diag = NULL;
3216 }
3217 #endif
3218
3219 if (enable_autosuspend)
3220 usb_enable_autosuspend(data->udev);
3221
3222 err = hci_register_dev(hdev);
3223 if (err < 0)
3224 goto out_free_dev;
3225
3226 usb_set_intfdata(intf, data);
3227
3228 return 0;
3229
3230 out_free_dev:
3231 hci_free_dev(hdev);
3232 return err;
3233 }
3234
3235 static void btusb_disconnect(struct usb_interface *intf)
3236 {
3237 struct btusb_data *data = usb_get_intfdata(intf);
3238 struct hci_dev *hdev;
3239
3240 BT_DBG("intf %p", intf);
3241
3242 if (!data)
3243 return;
3244
3245 hdev = data->hdev;
3246 usb_set_intfdata(data->intf, NULL);
3247
3248 if (data->isoc)
3249 usb_set_intfdata(data->isoc, NULL);
3250
3251 if (data->diag)
3252 usb_set_intfdata(data->diag, NULL);
3253
3254 hci_unregister_dev(hdev);
3255
3256 if (intf == data->intf) {
3257 if (data->isoc)
3258 usb_driver_release_interface(&btusb_driver, data->isoc);
3259 if (data->diag)
3260 usb_driver_release_interface(&btusb_driver, data->diag);
3261 } else if (intf == data->isoc) {
3262 if (data->diag)
3263 usb_driver_release_interface(&btusb_driver, data->diag);
3264 usb_driver_release_interface(&btusb_driver, data->intf);
3265 } else if (intf == data->diag) {
3266 usb_driver_release_interface(&btusb_driver, data->intf);
3267 if (data->isoc)
3268 usb_driver_release_interface(&btusb_driver, data->isoc);
3269 }
3270
3271 if (data->oob_wake_irq)
3272 device_init_wakeup(&data->udev->dev, false);
3273
3274 hci_free_dev(hdev);
3275 }
3276
3277 #ifdef CONFIG_PM
3278 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3279 {
3280 struct btusb_data *data = usb_get_intfdata(intf);
3281
3282 BT_DBG("intf %p", intf);
3283
3284 if (data->suspend_count++)
3285 return 0;
3286
3287 spin_lock_irq(&data->txlock);
3288 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3289 set_bit(BTUSB_SUSPENDING, &data->flags);
3290 spin_unlock_irq(&data->txlock);
3291 } else {
3292 spin_unlock_irq(&data->txlock);
3293 data->suspend_count--;
3294 return -EBUSY;
3295 }
3296
3297 cancel_work_sync(&data->work);
3298
3299 btusb_stop_traffic(data);
3300 usb_kill_anchored_urbs(&data->tx_anchor);
3301
3302 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3303 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3304 enable_irq_wake(data->oob_wake_irq);
3305 enable_irq(data->oob_wake_irq);
3306 }
3307
3308 return 0;
3309 }
3310
3311 static void play_deferred(struct btusb_data *data)
3312 {
3313 struct urb *urb;
3314 int err;
3315
3316 while ((urb = usb_get_from_anchor(&data->deferred))) {
3317 usb_anchor_urb(urb, &data->tx_anchor);
3318
3319 err = usb_submit_urb(urb, GFP_ATOMIC);
3320 if (err < 0) {
3321 if (err != -EPERM && err != -ENODEV)
3322 BT_ERR("%s urb %p submission failed (%d)",
3323 data->hdev->name, urb, -err);
3324 kfree(urb->setup_packet);
3325 usb_unanchor_urb(urb);
3326 usb_free_urb(urb);
3327 break;
3328 }
3329
3330 data->tx_in_flight++;
3331 usb_free_urb(urb);
3332 }
3333
3334 /* Cleanup the rest deferred urbs. */
3335 while ((urb = usb_get_from_anchor(&data->deferred))) {
3336 kfree(urb->setup_packet);
3337 usb_free_urb(urb);
3338 }
3339 }
3340
3341 static int btusb_resume(struct usb_interface *intf)
3342 {
3343 struct btusb_data *data = usb_get_intfdata(intf);
3344 struct hci_dev *hdev = data->hdev;
3345 int err = 0;
3346
3347 BT_DBG("intf %p", intf);
3348
3349 if (--data->suspend_count)
3350 return 0;
3351
3352 /* Disable only if not already disabled (keep it balanced) */
3353 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3354 disable_irq(data->oob_wake_irq);
3355 disable_irq_wake(data->oob_wake_irq);
3356 }
3357
3358 if (!test_bit(HCI_RUNNING, &hdev->flags))
3359 goto done;
3360
3361 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3362 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3363 if (err < 0) {
3364 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3365 goto failed;
3366 }
3367 }
3368
3369 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3370 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3371 if (err < 0) {
3372 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3373 goto failed;
3374 }
3375
3376 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3377 }
3378
3379 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3380 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3381 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3382 else
3383 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3384 }
3385
3386 spin_lock_irq(&data->txlock);
3387 play_deferred(data);
3388 clear_bit(BTUSB_SUSPENDING, &data->flags);
3389 spin_unlock_irq(&data->txlock);
3390 schedule_work(&data->work);
3391
3392 return 0;
3393
3394 failed:
3395 usb_scuttle_anchored_urbs(&data->deferred);
3396 done:
3397 spin_lock_irq(&data->txlock);
3398 clear_bit(BTUSB_SUSPENDING, &data->flags);
3399 spin_unlock_irq(&data->txlock);
3400
3401 return err;
3402 }
3403 #endif
3404
3405 static struct usb_driver btusb_driver = {
3406 .name = "btusb",
3407 .probe = btusb_probe,
3408 .disconnect = btusb_disconnect,
3409 #ifdef CONFIG_PM
3410 .suspend = btusb_suspend,
3411 .resume = btusb_resume,
3412 #endif
3413 .id_table = btusb_table,
3414 .supports_autosuspend = 1,
3415 .disable_hub_initiated_lpm = 1,
3416 };
3417
3418 module_usb_driver(btusb_driver);
3419
3420 module_param(disable_scofix, bool, 0644);
3421 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3422
3423 module_param(force_scofix, bool, 0644);
3424 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3425
3426 module_param(enable_autosuspend, bool, 0644);
3427 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
3428
3429 module_param(reset, bool, 0644);
3430 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3431
3432 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3433 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3434 MODULE_VERSION(VERSION);
3435 MODULE_LICENSE("GPL");
Linux with added FPC-III support