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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <linux/debugfs.h>
20#include <asm/unaligned.h>
21
22#include <net/bluetooth/bluetooth.h>
23#include <net/bluetooth/hci_core.h>
24
25#include "btintel.h"
26#include "btbcm.h"
27#include "btrtl.h"
28#include "btmtk.h"
29
30#define VERSION "0.8"
31
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE BIT(0)
41#define BTUSB_DIGIANSWER BIT(1)
42#define BTUSB_CSR BIT(2)
43#define BTUSB_SNIFFER BIT(3)
44#define BTUSB_BCM92035 BIT(4)
45#define BTUSB_BROKEN_ISOC BIT(5)
46#define BTUSB_WRONG_SCO_MTU BIT(6)
47#define BTUSB_ATH3012 BIT(7)
48#define BTUSB_INTEL_COMBINED BIT(8)
49#define BTUSB_INTEL_BOOT BIT(9)
50#define BTUSB_BCM_PATCHRAM BIT(10)
51#define BTUSB_MARVELL BIT(11)
52#define BTUSB_SWAVE BIT(12)
53#define BTUSB_AMP BIT(13)
54#define BTUSB_QCA_ROME BIT(14)
55#define BTUSB_BCM_APPLE BIT(15)
56#define BTUSB_REALTEK BIT(16)
57#define BTUSB_BCM2045 BIT(17)
58#define BTUSB_IFNUM_2 BIT(18)
59#define BTUSB_CW6622 BIT(19)
60#define BTUSB_MEDIATEK BIT(20)
61#define BTUSB_WIDEBAND_SPEECH BIT(21)
62#define BTUSB_VALID_LE_STATES BIT(22)
63#define BTUSB_QCA_WCN6855 BIT(23)
64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67
68static const struct usb_device_id btusb_table[] = {
69 /* Generic Bluetooth USB device */
70 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
71
72 /* Generic Bluetooth AMP device */
73 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
74
75 /* Generic Bluetooth USB interface */
76 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
77
78 /* Apple-specific (Broadcom) devices */
79 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
80 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
81
82 /* MediaTek MT76x0E */
83 { USB_DEVICE(0x0e8d, 0x763f) },
84
85 /* Broadcom SoftSailing reporting vendor specific */
86 { USB_DEVICE(0x0a5c, 0x21e1) },
87
88 /* Apple MacBookPro 7,1 */
89 { USB_DEVICE(0x05ac, 0x8213) },
90
91 /* Apple iMac11,1 */
92 { USB_DEVICE(0x05ac, 0x8215) },
93
94 /* Apple MacBookPro6,2 */
95 { USB_DEVICE(0x05ac, 0x8218) },
96
97 /* Apple MacBookAir3,1, MacBookAir3,2 */
98 { USB_DEVICE(0x05ac, 0x821b) },
99
100 /* Apple MacBookAir4,1 */
101 { USB_DEVICE(0x05ac, 0x821f) },
102
103 /* Apple MacBookPro8,2 */
104 { USB_DEVICE(0x05ac, 0x821a) },
105
106 /* Apple MacMini5,1 */
107 { USB_DEVICE(0x05ac, 0x8281) },
108
109 /* AVM BlueFRITZ! USB v2.0 */
110 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
111
112 /* Bluetooth Ultraport Module from IBM */
113 { USB_DEVICE(0x04bf, 0x030a) },
114
115 /* ALPS Modules with non-standard id */
116 { USB_DEVICE(0x044e, 0x3001) },
117 { USB_DEVICE(0x044e, 0x3002) },
118
119 /* Ericsson with non-standard id */
120 { USB_DEVICE(0x0bdb, 0x1002) },
121
122 /* Canyon CN-BTU1 with HID interfaces */
123 { USB_DEVICE(0x0c10, 0x0000) },
124
125 /* Broadcom BCM20702B0 (Dynex/Insignia) */
126 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
127
128 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
132 /* Broadcom BCM920703 (HTC Vive) */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* Foxconn - Hon Hai */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Lite-On Technology - Broadcom based */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* Broadcom devices with vendor specific id */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* ASUSTek Computer - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152 /* Belkin F8065bf - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156 /* IMC Networks - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160 /* Dell Computer - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
164 /* Toshiba Corp - Broadcom based */
165 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
167
168 /* Intel Bluetooth USB Bootloader (RAM module) */
169 { USB_DEVICE(0x8087, 0x0a5a),
170 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
171
172 { } /* Terminating entry */
173};
174
175MODULE_DEVICE_TABLE(usb, btusb_table);
176
177static const struct usb_device_id blacklist_table[] = {
178 /* CSR BlueCore devices */
179 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
180
181 /* Broadcom BCM2033 without firmware */
182 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
183
184 /* Broadcom BCM2045 devices */
185 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
186
187 /* Atheros 3011 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
195
196 /* Atheros AR9285 Malbec with sflash firmware */
197 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
198
199 /* Atheros 3012 with sflash firmware */
200 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
250
251 /* Atheros AR5BBU12 with sflash firmware */
252 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
253
254 /* Atheros AR5BBU12 with sflash firmware */
255 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
256 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
257
258 /* QCA ROME chipset */
259 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
260 BTUSB_WIDEBAND_SPEECH },
261 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
262 BTUSB_WIDEBAND_SPEECH },
263 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
264 BTUSB_WIDEBAND_SPEECH },
265 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
266 BTUSB_WIDEBAND_SPEECH },
267 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
268 BTUSB_WIDEBAND_SPEECH },
269 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
270 BTUSB_WIDEBAND_SPEECH },
271 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
272 BTUSB_WIDEBAND_SPEECH },
273 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
294 BTUSB_WIDEBAND_SPEECH },
295 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
296 BTUSB_WIDEBAND_SPEECH },
297
298 /* QCA WCN6855 chipset */
299 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
300 BTUSB_WIDEBAND_SPEECH |
301 BTUSB_VALID_LE_STATES },
302 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH |
304 BTUSB_VALID_LE_STATES },
305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
306 BTUSB_WIDEBAND_SPEECH |
307 BTUSB_VALID_LE_STATES },
308 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH |
310 BTUSB_VALID_LE_STATES },
311 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
312 BTUSB_WIDEBAND_SPEECH |
313 BTUSB_VALID_LE_STATES },
314 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH |
316 BTUSB_VALID_LE_STATES },
317 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
318 BTUSB_WIDEBAND_SPEECH |
319 BTUSB_VALID_LE_STATES },
320 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH |
322 BTUSB_VALID_LE_STATES },
323 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
324 BTUSB_WIDEBAND_SPEECH |
325 BTUSB_VALID_LE_STATES },
326 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH |
328 BTUSB_VALID_LE_STATES },
329 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
330 BTUSB_WIDEBAND_SPEECH |
331 BTUSB_VALID_LE_STATES },
332 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH |
334 BTUSB_VALID_LE_STATES },
335 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
336 BTUSB_WIDEBAND_SPEECH |
337 BTUSB_VALID_LE_STATES },
338 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH |
340 BTUSB_VALID_LE_STATES },
341 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
342 BTUSB_WIDEBAND_SPEECH |
343 BTUSB_VALID_LE_STATES },
344 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH |
346 BTUSB_VALID_LE_STATES },
347 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
348 BTUSB_WIDEBAND_SPEECH |
349 BTUSB_VALID_LE_STATES },
350 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH |
352 BTUSB_VALID_LE_STATES },
353 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
354 BTUSB_WIDEBAND_SPEECH |
355 BTUSB_VALID_LE_STATES },
356 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH |
358 BTUSB_VALID_LE_STATES },
359 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
360 BTUSB_WIDEBAND_SPEECH |
361 BTUSB_VALID_LE_STATES },
362 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH |
364 BTUSB_VALID_LE_STATES },
365 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
366 BTUSB_WIDEBAND_SPEECH |
367 BTUSB_VALID_LE_STATES },
368 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH |
370 BTUSB_VALID_LE_STATES },
371 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
372 BTUSB_WIDEBAND_SPEECH |
373 BTUSB_VALID_LE_STATES },
374 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
375 BTUSB_WIDEBAND_SPEECH |
376 BTUSB_VALID_LE_STATES },
377 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
378 BTUSB_WIDEBAND_SPEECH |
379 BTUSB_VALID_LE_STATES },
380 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH |
382 BTUSB_VALID_LE_STATES },
383 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
384 BTUSB_WIDEBAND_SPEECH |
385 BTUSB_VALID_LE_STATES },
386 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
387 BTUSB_WIDEBAND_SPEECH |
388 BTUSB_VALID_LE_STATES },
389 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
390 BTUSB_WIDEBAND_SPEECH |
391 BTUSB_VALID_LE_STATES },
392 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
393 BTUSB_WIDEBAND_SPEECH |
394 BTUSB_VALID_LE_STATES },
395 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
396 BTUSB_WIDEBAND_SPEECH |
397 BTUSB_VALID_LE_STATES },
398 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
399 BTUSB_WIDEBAND_SPEECH |
400 BTUSB_VALID_LE_STATES },
401 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
402 BTUSB_WIDEBAND_SPEECH |
403 BTUSB_VALID_LE_STATES },
404
405 /* QCA WCN785x chipset */
406 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
407 BTUSB_WIDEBAND_SPEECH |
408 BTUSB_VALID_LE_STATES },
409
410 /* Broadcom BCM2035 */
411 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
412 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
413 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
414
415 /* Broadcom BCM2045 */
416 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
417 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
418
419 /* IBM/Lenovo ThinkPad with Broadcom chip */
420 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
421 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
422
423 /* HP laptop with Broadcom chip */
424 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
425
426 /* Dell laptop with Broadcom chip */
427 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
428
429 /* Dell Wireless 370 and 410 devices */
430 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
431 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
432
433 /* Belkin F8T012 and F8T013 devices */
434 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
435 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
436
437 /* Asus WL-BTD202 device */
438 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
439
440 /* Kensington Bluetooth USB adapter */
441 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
442
443 /* RTX Telecom based adapters with buggy SCO support */
444 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
445 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
446
447 /* CONWISE Technology based adapters with buggy SCO support */
448 { USB_DEVICE(0x0e5e, 0x6622),
449 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
450
451 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
452 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
453
454 /* Digianswer devices */
455 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
456 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
457
458 /* CSR BlueCore Bluetooth Sniffer */
459 { USB_DEVICE(0x0a12, 0x0002),
460 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
461
462 /* Frontline ComProbe Bluetooth Sniffer */
463 { USB_DEVICE(0x16d3, 0x0002),
464 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
465
466 /* Marvell Bluetooth devices */
467 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
468 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
470
471 /* Intel Bluetooth devices */
472 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
473 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
479 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
480 BTUSB_INTEL_NO_WBS_SUPPORT |
481 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
482 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
483 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
484 BTUSB_INTEL_NO_WBS_SUPPORT |
485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
486 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
487 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
489 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
490
491 /* Other Intel Bluetooth devices */
492 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
493 .driver_info = BTUSB_IGNORE },
494
495 /* Realtek 8822CE Bluetooth devices */
496 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
497 BTUSB_WIDEBAND_SPEECH },
498 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
499 BTUSB_WIDEBAND_SPEECH },
500
501 /* Realtek 8822CU Bluetooth devices */
502 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
503 BTUSB_WIDEBAND_SPEECH },
504
505 /* Realtek 8852AE Bluetooth devices */
506 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
507 BTUSB_WIDEBAND_SPEECH },
508 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
509 BTUSB_WIDEBAND_SPEECH },
510 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
511 BTUSB_WIDEBAND_SPEECH },
512 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
513 BTUSB_WIDEBAND_SPEECH },
514 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
515 BTUSB_WIDEBAND_SPEECH },
516 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
517 BTUSB_WIDEBAND_SPEECH },
518 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
519 BTUSB_WIDEBAND_SPEECH },
520
521 /* Realtek 8852CE Bluetooth devices */
522 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
523 BTUSB_WIDEBAND_SPEECH },
524 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
525 BTUSB_WIDEBAND_SPEECH },
526 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
527 BTUSB_WIDEBAND_SPEECH },
528 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
529 BTUSB_WIDEBAND_SPEECH },
530 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
531 BTUSB_WIDEBAND_SPEECH },
532 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
533 BTUSB_WIDEBAND_SPEECH },
534
535 /* Realtek 8852BE Bluetooth devices */
536 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
537 BTUSB_WIDEBAND_SPEECH },
538
539 /* Realtek Bluetooth devices */
540 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
541 .driver_info = BTUSB_REALTEK },
542
543 /* MediaTek Bluetooth devices */
544 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
545 .driver_info = BTUSB_MEDIATEK |
546 BTUSB_WIDEBAND_SPEECH |
547 BTUSB_VALID_LE_STATES },
548
549 /* Additional MediaTek MT7615E Bluetooth devices */
550 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
551
552 /* Additional MediaTek MT7663 Bluetooth devices */
553 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
554 BTUSB_WIDEBAND_SPEECH |
555 BTUSB_VALID_LE_STATES },
556
557 /* Additional MediaTek MT7668 Bluetooth devices */
558 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
559 BTUSB_WIDEBAND_SPEECH |
560 BTUSB_VALID_LE_STATES },
561
562 /* Additional MediaTek MT7921 Bluetooth devices */
563 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
564 BTUSB_WIDEBAND_SPEECH |
565 BTUSB_VALID_LE_STATES },
566 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
567 BTUSB_WIDEBAND_SPEECH |
568 BTUSB_VALID_LE_STATES },
569 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
570 BTUSB_WIDEBAND_SPEECH |
571 BTUSB_VALID_LE_STATES },
572 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
573 BTUSB_WIDEBAND_SPEECH |
574 BTUSB_VALID_LE_STATES },
575 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
576 BTUSB_WIDEBAND_SPEECH |
577 BTUSB_VALID_LE_STATES },
578 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
579 BTUSB_WIDEBAND_SPEECH |
580 BTUSB_VALID_LE_STATES },
581 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH |
583 BTUSB_VALID_LE_STATES },
584 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
585 BTUSB_WIDEBAND_SPEECH |
586 BTUSB_VALID_LE_STATES },
587 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH |
589 BTUSB_VALID_LE_STATES },
590 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
591 BTUSB_WIDEBAND_SPEECH |
592 BTUSB_VALID_LE_STATES },
593
594 /* MediaTek MT7922A Bluetooth devices */
595 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH |
597 BTUSB_VALID_LE_STATES },
598 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
599 BTUSB_WIDEBAND_SPEECH |
600 BTUSB_VALID_LE_STATES },
601 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH |
603 BTUSB_VALID_LE_STATES },
604 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
605 BTUSB_WIDEBAND_SPEECH |
606 BTUSB_VALID_LE_STATES },
607 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH |
609 BTUSB_VALID_LE_STATES },
610
611 /* Additional Realtek 8723AE Bluetooth devices */
612 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
613 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
614
615 /* Additional Realtek 8723BE Bluetooth devices */
616 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
617 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
618 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
619 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
620 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
621 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
622 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
623
624 /* Additional Realtek 8723BU Bluetooth devices */
625 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
626
627 /* Additional Realtek 8723DE Bluetooth devices */
628 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
629 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
630
631 /* Additional Realtek 8761BUV Bluetooth devices */
632 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
633 BTUSB_WIDEBAND_SPEECH },
634 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
635 BTUSB_WIDEBAND_SPEECH },
636 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
637 BTUSB_WIDEBAND_SPEECH },
638 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
639 BTUSB_WIDEBAND_SPEECH },
640 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
641 BTUSB_WIDEBAND_SPEECH },
642 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
643 BTUSB_WIDEBAND_SPEECH },
644
645 /* Additional Realtek 8821AE Bluetooth devices */
646 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
647 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
648 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
649 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
650 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
651
652 /* Additional Realtek 8822BE Bluetooth devices */
653 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
654 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
655
656 /* Additional Realtek 8822CE Bluetooth devices */
657 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
658 BTUSB_WIDEBAND_SPEECH },
659 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
660 BTUSB_WIDEBAND_SPEECH },
661 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
666 BTUSB_WIDEBAND_SPEECH },
667 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
668 BTUSB_WIDEBAND_SPEECH },
669 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
670 BTUSB_WIDEBAND_SPEECH },
671 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
672 BTUSB_WIDEBAND_SPEECH },
673 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
678 BTUSB_WIDEBAND_SPEECH },
679
680 /* Silicon Wave based devices */
681 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
682
683 { } /* Terminating entry */
684};
685
686/* The Bluetooth USB module build into some devices needs to be reset on resume,
687 * this is a problem with the platform (likely shutting off all power) not with
688 * the module itself. So we use a DMI list to match known broken platforms.
689 */
690static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
691 {
692 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
693 .matches = {
694 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
695 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
696 },
697 },
698 {
699 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
700 .matches = {
701 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
702 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
703 },
704 },
705 {
706 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
707 .matches = {
708 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
709 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
710 },
711 },
712 {}
713};
714
715#define BTUSB_MAX_ISOC_FRAMES 10
716
717#define BTUSB_INTR_RUNNING 0
718#define BTUSB_BULK_RUNNING 1
719#define BTUSB_ISOC_RUNNING 2
720#define BTUSB_SUSPENDING 3
721#define BTUSB_DID_ISO_RESUME 4
722#define BTUSB_BOOTLOADER 5
723#define BTUSB_DOWNLOADING 6
724#define BTUSB_FIRMWARE_LOADED 7
725#define BTUSB_FIRMWARE_FAILED 8
726#define BTUSB_BOOTING 9
727#define BTUSB_DIAG_RUNNING 10
728#define BTUSB_OOB_WAKE_ENABLED 11
729#define BTUSB_HW_RESET_ACTIVE 12
730#define BTUSB_TX_WAIT_VND_EVT 13
731#define BTUSB_WAKEUP_AUTOSUSPEND 14
732#define BTUSB_USE_ALT3_FOR_WBS 15
733#define BTUSB_ALT6_CONTINUOUS_TX 16
734
735struct btusb_data {
736 struct hci_dev *hdev;
737 struct usb_device *udev;
738 struct usb_interface *intf;
739 struct usb_interface *isoc;
740 struct usb_interface *diag;
741 unsigned isoc_ifnum;
742
743 unsigned long flags;
744
745 bool poll_sync;
746 int intr_interval;
747 struct work_struct work;
748 struct work_struct waker;
749 struct delayed_work rx_work;
750
751 struct sk_buff_head acl_q;
752
753 struct usb_anchor deferred;
754 struct usb_anchor tx_anchor;
755 int tx_in_flight;
756 spinlock_t txlock;
757
758 struct usb_anchor intr_anchor;
759 struct usb_anchor bulk_anchor;
760 struct usb_anchor isoc_anchor;
761 struct usb_anchor diag_anchor;
762 struct usb_anchor ctrl_anchor;
763 spinlock_t rxlock;
764
765 struct sk_buff *evt_skb;
766 struct sk_buff *acl_skb;
767 struct sk_buff *sco_skb;
768
769 struct usb_endpoint_descriptor *intr_ep;
770 struct usb_endpoint_descriptor *bulk_tx_ep;
771 struct usb_endpoint_descriptor *bulk_rx_ep;
772 struct usb_endpoint_descriptor *isoc_tx_ep;
773 struct usb_endpoint_descriptor *isoc_rx_ep;
774 struct usb_endpoint_descriptor *diag_tx_ep;
775 struct usb_endpoint_descriptor *diag_rx_ep;
776
777 struct gpio_desc *reset_gpio;
778
779 __u8 cmdreq_type;
780 __u8 cmdreq;
781
782 unsigned int sco_num;
783 unsigned int air_mode;
784 bool usb_alt6_packet_flow;
785 int isoc_altsetting;
786 int suspend_count;
787
788 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
789 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
790 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
791
792 int (*setup_on_usb)(struct hci_dev *hdev);
793
794 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
795 unsigned cmd_timeout_cnt;
796};
797
798static void btusb_reset(struct hci_dev *hdev)
799{
800 struct btusb_data *data;
801 int err;
802
803 if (hdev->reset) {
804 hdev->reset(hdev);
805 return;
806 }
807
808 data = hci_get_drvdata(hdev);
809 /* This is not an unbalanced PM reference since the device will reset */
810 err = usb_autopm_get_interface(data->intf);
811 if (err) {
812 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
813 return;
814 }
815
816 bt_dev_err(hdev, "Resetting usb device.");
817 usb_queue_reset_device(data->intf);
818}
819
820static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
821{
822 struct btusb_data *data = hci_get_drvdata(hdev);
823 struct gpio_desc *reset_gpio = data->reset_gpio;
824
825 if (++data->cmd_timeout_cnt < 5)
826 return;
827
828 if (!reset_gpio) {
829 btusb_reset(hdev);
830 return;
831 }
832
833 /*
834 * Toggle the hard reset line if the platform provides one. The reset
835 * is going to yank the device off the USB and then replug. So doing
836 * once is enough. The cleanup is handled correctly on the way out
837 * (standard USB disconnect), and the new device is detected cleanly
838 * and bound to the driver again like it should be.
839 */
840 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
841 bt_dev_err(hdev, "last reset failed? Not resetting again");
842 return;
843 }
844
845 bt_dev_err(hdev, "Initiating HW reset via gpio");
846 gpiod_set_value_cansleep(reset_gpio, 1);
847 msleep(100);
848 gpiod_set_value_cansleep(reset_gpio, 0);
849}
850
851static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
852{
853 struct btusb_data *data = hci_get_drvdata(hdev);
854 struct gpio_desc *reset_gpio = data->reset_gpio;
855
856 if (++data->cmd_timeout_cnt < 5)
857 return;
858
859 if (!reset_gpio) {
860 btusb_reset(hdev);
861 return;
862 }
863
864 /* Toggle the hard reset line. The Realtek device is going to
865 * yank itself off the USB and then replug. The cleanup is handled
866 * correctly on the way out (standard USB disconnect), and the new
867 * device is detected cleanly and bound to the driver again like
868 * it should be.
869 */
870 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
871 bt_dev_err(hdev, "last reset failed? Not resetting again");
872 return;
873 }
874
875 bt_dev_err(hdev, "Reset Realtek device via gpio");
876 gpiod_set_value_cansleep(reset_gpio, 1);
877 msleep(200);
878 gpiod_set_value_cansleep(reset_gpio, 0);
879}
880
881static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
882{
883 struct btusb_data *data = hci_get_drvdata(hdev);
884 struct gpio_desc *reset_gpio = data->reset_gpio;
885
886 if (++data->cmd_timeout_cnt < 5)
887 return;
888
889 if (reset_gpio) {
890 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
891
892 /* Toggle the hard reset line. The qca bt device is going to
893 * yank itself off the USB and then replug. The cleanup is handled
894 * correctly on the way out (standard USB disconnect), and the new
895 * device is detected cleanly and bound to the driver again like
896 * it should be.
897 */
898 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
899 bt_dev_err(hdev, "last reset failed? Not resetting again");
900 return;
901 }
902
903 gpiod_set_value_cansleep(reset_gpio, 0);
904 msleep(200);
905 gpiod_set_value_cansleep(reset_gpio, 1);
906
907 return;
908 }
909
910 btusb_reset(hdev);
911}
912
913static inline void btusb_free_frags(struct btusb_data *data)
914{
915 unsigned long flags;
916
917 spin_lock_irqsave(&data->rxlock, flags);
918
919 dev_kfree_skb_irq(data->evt_skb);
920 data->evt_skb = NULL;
921
922 dev_kfree_skb_irq(data->acl_skb);
923 data->acl_skb = NULL;
924
925 dev_kfree_skb_irq(data->sco_skb);
926 data->sco_skb = NULL;
927
928 spin_unlock_irqrestore(&data->rxlock, flags);
929}
930
931static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
932{
933 if (data->intr_interval) {
934 /* Trigger dequeue immediatelly if an event is received */
935 schedule_delayed_work(&data->rx_work, 0);
936 }
937
938 return data->recv_event(data->hdev, skb);
939}
940
941static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
942{
943 struct sk_buff *skb;
944 unsigned long flags;
945 int err = 0;
946
947 spin_lock_irqsave(&data->rxlock, flags);
948 skb = data->evt_skb;
949
950 while (count) {
951 int len;
952
953 if (!skb) {
954 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
955 if (!skb) {
956 err = -ENOMEM;
957 break;
958 }
959
960 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
961 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
962 }
963
964 len = min_t(uint, hci_skb_expect(skb), count);
965 skb_put_data(skb, buffer, len);
966
967 count -= len;
968 buffer += len;
969 hci_skb_expect(skb) -= len;
970
971 if (skb->len == HCI_EVENT_HDR_SIZE) {
972 /* Complete event header */
973 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
974
975 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
976 kfree_skb(skb);
977 skb = NULL;
978
979 err = -EILSEQ;
980 break;
981 }
982 }
983
984 if (!hci_skb_expect(skb)) {
985 /* Complete frame */
986 btusb_recv_event(data, skb);
987 skb = NULL;
988 }
989 }
990
991 data->evt_skb = skb;
992 spin_unlock_irqrestore(&data->rxlock, flags);
993
994 return err;
995}
996
997static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
998{
999 /* Only queue ACL packet if intr_interval is set as it means
1000 * force_poll_sync has been enabled.
1001 */
1002 if (!data->intr_interval)
1003 return data->recv_acl(data->hdev, skb);
1004
1005 skb_queue_tail(&data->acl_q, skb);
1006 schedule_delayed_work(&data->rx_work, data->intr_interval);
1007
1008 return 0;
1009}
1010
1011static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1012{
1013 struct sk_buff *skb;
1014 unsigned long flags;
1015 int err = 0;
1016
1017 spin_lock_irqsave(&data->rxlock, flags);
1018 skb = data->acl_skb;
1019
1020 while (count) {
1021 int len;
1022
1023 if (!skb) {
1024 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1025 if (!skb) {
1026 err = -ENOMEM;
1027 break;
1028 }
1029
1030 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1031 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1032 }
1033
1034 len = min_t(uint, hci_skb_expect(skb), count);
1035 skb_put_data(skb, buffer, len);
1036
1037 count -= len;
1038 buffer += len;
1039 hci_skb_expect(skb) -= len;
1040
1041 if (skb->len == HCI_ACL_HDR_SIZE) {
1042 __u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle);
1043 __le16 dlen = hci_acl_hdr(skb)->dlen;
1044 __u8 type;
1045
1046 /* Complete ACL header */
1047 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1048
1049 /* Detect if ISO packet has been sent over bulk */
1050 if (hci_conn_num(data->hdev, ISO_LINK)) {
1051 type = hci_conn_lookup_type(data->hdev,
1052 hci_handle(handle));
1053 if (type == ISO_LINK)
1054 hci_skb_pkt_type(skb) = HCI_ISODATA_PKT;
1055 }
1056
1057 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1058 kfree_skb(skb);
1059 skb = NULL;
1060
1061 err = -EILSEQ;
1062 break;
1063 }
1064 }
1065
1066 if (!hci_skb_expect(skb)) {
1067 /* Complete frame */
1068 btusb_recv_acl(data, skb);
1069 skb = NULL;
1070 }
1071 }
1072
1073 data->acl_skb = skb;
1074 spin_unlock_irqrestore(&data->rxlock, flags);
1075
1076 return err;
1077}
1078
1079static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1080 struct hci_sco_hdr *hdr)
1081{
1082 __u16 handle;
1083
1084 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1085 // Can't validate, userspace controls everything.
1086 return true;
1087
1088 /*
1089 * USB isochronous transfers are not designed to be reliable and may
1090 * lose fragments. When this happens, the next first fragment
1091 * encountered might actually be a continuation fragment.
1092 * Validate the handle to detect it and drop it, or else the upper
1093 * layer will get garbage for a while.
1094 */
1095
1096 handle = hci_handle(__le16_to_cpu(hdr->handle));
1097
1098 switch (hci_conn_lookup_type(hdev, handle)) {
1099 case SCO_LINK:
1100 case ESCO_LINK:
1101 return true;
1102 default:
1103 return false;
1104 }
1105}
1106
1107static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1108{
1109 struct sk_buff *skb;
1110 unsigned long flags;
1111 int err = 0;
1112
1113 spin_lock_irqsave(&data->rxlock, flags);
1114 skb = data->sco_skb;
1115
1116 while (count) {
1117 int len;
1118
1119 if (!skb) {
1120 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1121 if (!skb) {
1122 err = -ENOMEM;
1123 break;
1124 }
1125
1126 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1127 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1128 }
1129
1130 len = min_t(uint, hci_skb_expect(skb), count);
1131 skb_put_data(skb, buffer, len);
1132
1133 count -= len;
1134 buffer += len;
1135 hci_skb_expect(skb) -= len;
1136
1137 if (skb->len == HCI_SCO_HDR_SIZE) {
1138 /* Complete SCO header */
1139 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1140
1141 hci_skb_expect(skb) = hdr->dlen;
1142
1143 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1144 !btusb_validate_sco_handle(data->hdev, hdr)) {
1145 kfree_skb(skb);
1146 skb = NULL;
1147
1148 err = -EILSEQ;
1149 break;
1150 }
1151 }
1152
1153 if (!hci_skb_expect(skb)) {
1154 /* Complete frame */
1155 hci_recv_frame(data->hdev, skb);
1156 skb = NULL;
1157 }
1158 }
1159
1160 data->sco_skb = skb;
1161 spin_unlock_irqrestore(&data->rxlock, flags);
1162
1163 return err;
1164}
1165
1166static void btusb_intr_complete(struct urb *urb)
1167{
1168 struct hci_dev *hdev = urb->context;
1169 struct btusb_data *data = hci_get_drvdata(hdev);
1170 int err;
1171
1172 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1173 urb->actual_length);
1174
1175 if (!test_bit(HCI_RUNNING, &hdev->flags))
1176 return;
1177
1178 if (urb->status == 0) {
1179 hdev->stat.byte_rx += urb->actual_length;
1180
1181 if (btusb_recv_intr(data, urb->transfer_buffer,
1182 urb->actual_length) < 0) {
1183 bt_dev_err(hdev, "corrupted event packet");
1184 hdev->stat.err_rx++;
1185 }
1186 } else if (urb->status == -ENOENT) {
1187 /* Avoid suspend failed when usb_kill_urb */
1188 return;
1189 }
1190
1191 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1192 return;
1193
1194 usb_mark_last_busy(data->udev);
1195 usb_anchor_urb(urb, &data->intr_anchor);
1196
1197 err = usb_submit_urb(urb, GFP_ATOMIC);
1198 if (err < 0) {
1199 /* -EPERM: urb is being killed;
1200 * -ENODEV: device got disconnected
1201 */
1202 if (err != -EPERM && err != -ENODEV)
1203 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1204 urb, -err);
1205 if (err != -EPERM)
1206 hci_cmd_sync_cancel(hdev, -err);
1207 usb_unanchor_urb(urb);
1208 }
1209}
1210
1211static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1212{
1213 struct btusb_data *data = hci_get_drvdata(hdev);
1214 struct urb *urb;
1215 unsigned char *buf;
1216 unsigned int pipe;
1217 int err, size;
1218
1219 BT_DBG("%s", hdev->name);
1220
1221 if (!data->intr_ep)
1222 return -ENODEV;
1223
1224 urb = usb_alloc_urb(0, mem_flags);
1225 if (!urb)
1226 return -ENOMEM;
1227
1228 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1229
1230 buf = kmalloc(size, mem_flags);
1231 if (!buf) {
1232 usb_free_urb(urb);
1233 return -ENOMEM;
1234 }
1235
1236 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1237
1238 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1239 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1240
1241 urb->transfer_flags |= URB_FREE_BUFFER;
1242
1243 usb_anchor_urb(urb, &data->intr_anchor);
1244
1245 err = usb_submit_urb(urb, mem_flags);
1246 if (err < 0) {
1247 if (err != -EPERM && err != -ENODEV)
1248 bt_dev_err(hdev, "urb %p submission failed (%d)",
1249 urb, -err);
1250 if (err != -EPERM)
1251 hci_cmd_sync_cancel(hdev, -err);
1252 usb_unanchor_urb(urb);
1253 }
1254
1255 /* Only initialize intr_interval if URB poll sync is enabled */
1256 if (!data->poll_sync)
1257 goto done;
1258
1259 /* The units are frames (milliseconds) for full and low speed devices,
1260 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1261 * devices.
1262 *
1263 * This is done once on open/resume so it shouldn't change even if
1264 * force_poll_sync changes.
1265 */
1266 switch (urb->dev->speed) {
1267 case USB_SPEED_SUPER_PLUS:
1268 case USB_SPEED_SUPER: /* units are 125us */
1269 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1270 break;
1271 default:
1272 data->intr_interval = msecs_to_jiffies(urb->interval);
1273 break;
1274 }
1275
1276done:
1277 usb_free_urb(urb);
1278
1279 return err;
1280}
1281
1282static void btusb_bulk_complete(struct urb *urb)
1283{
1284 struct hci_dev *hdev = urb->context;
1285 struct btusb_data *data = hci_get_drvdata(hdev);
1286 int err;
1287
1288 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1289 urb->actual_length);
1290
1291 if (!test_bit(HCI_RUNNING, &hdev->flags))
1292 return;
1293
1294 if (urb->status == 0) {
1295 hdev->stat.byte_rx += urb->actual_length;
1296
1297 if (data->recv_bulk(data, urb->transfer_buffer,
1298 urb->actual_length) < 0) {
1299 bt_dev_err(hdev, "corrupted ACL packet");
1300 hdev->stat.err_rx++;
1301 }
1302 } else if (urb->status == -ENOENT) {
1303 /* Avoid suspend failed when usb_kill_urb */
1304 return;
1305 }
1306
1307 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1308 return;
1309
1310 usb_anchor_urb(urb, &data->bulk_anchor);
1311 usb_mark_last_busy(data->udev);
1312
1313 err = usb_submit_urb(urb, GFP_ATOMIC);
1314 if (err < 0) {
1315 /* -EPERM: urb is being killed;
1316 * -ENODEV: device got disconnected
1317 */
1318 if (err != -EPERM && err != -ENODEV)
1319 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1320 urb, -err);
1321 usb_unanchor_urb(urb);
1322 }
1323}
1324
1325static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1326{
1327 struct btusb_data *data = hci_get_drvdata(hdev);
1328 struct urb *urb;
1329 unsigned char *buf;
1330 unsigned int pipe;
1331 int err, size = HCI_MAX_FRAME_SIZE;
1332
1333 BT_DBG("%s", hdev->name);
1334
1335 if (!data->bulk_rx_ep)
1336 return -ENODEV;
1337
1338 urb = usb_alloc_urb(0, mem_flags);
1339 if (!urb)
1340 return -ENOMEM;
1341
1342 buf = kmalloc(size, mem_flags);
1343 if (!buf) {
1344 usb_free_urb(urb);
1345 return -ENOMEM;
1346 }
1347
1348 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1349
1350 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1351 btusb_bulk_complete, hdev);
1352
1353 urb->transfer_flags |= URB_FREE_BUFFER;
1354
1355 usb_mark_last_busy(data->udev);
1356 usb_anchor_urb(urb, &data->bulk_anchor);
1357
1358 err = usb_submit_urb(urb, mem_flags);
1359 if (err < 0) {
1360 if (err != -EPERM && err != -ENODEV)
1361 bt_dev_err(hdev, "urb %p submission failed (%d)",
1362 urb, -err);
1363 usb_unanchor_urb(urb);
1364 }
1365
1366 usb_free_urb(urb);
1367
1368 return err;
1369}
1370
1371static void btusb_isoc_complete(struct urb *urb)
1372{
1373 struct hci_dev *hdev = urb->context;
1374 struct btusb_data *data = hci_get_drvdata(hdev);
1375 int i, err;
1376
1377 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1378 urb->actual_length);
1379
1380 if (!test_bit(HCI_RUNNING, &hdev->flags))
1381 return;
1382
1383 if (urb->status == 0) {
1384 for (i = 0; i < urb->number_of_packets; i++) {
1385 unsigned int offset = urb->iso_frame_desc[i].offset;
1386 unsigned int length = urb->iso_frame_desc[i].actual_length;
1387
1388 if (urb->iso_frame_desc[i].status)
1389 continue;
1390
1391 hdev->stat.byte_rx += length;
1392
1393 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1394 length) < 0) {
1395 bt_dev_err(hdev, "corrupted SCO packet");
1396 hdev->stat.err_rx++;
1397 }
1398 }
1399 } else if (urb->status == -ENOENT) {
1400 /* Avoid suspend failed when usb_kill_urb */
1401 return;
1402 }
1403
1404 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1405 return;
1406
1407 usb_anchor_urb(urb, &data->isoc_anchor);
1408
1409 err = usb_submit_urb(urb, GFP_ATOMIC);
1410 if (err < 0) {
1411 /* -EPERM: urb is being killed;
1412 * -ENODEV: device got disconnected
1413 */
1414 if (err != -EPERM && err != -ENODEV)
1415 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1416 urb, -err);
1417 usb_unanchor_urb(urb);
1418 }
1419}
1420
1421static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1422 int mtu, struct btusb_data *data)
1423{
1424 int i = 0, offset = 0;
1425 unsigned int interval;
1426
1427 BT_DBG("len %d mtu %d", len, mtu);
1428
1429 /* For mSBC ALT 6 settings some chips need to transmit the data
1430 * continuously without the zero length of USB packets.
1431 */
1432 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1433 goto ignore_usb_alt6_packet_flow;
1434
1435 /* For mSBC ALT 6 setting the host will send the packet at continuous
1436 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1437 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1438 * To maintain the rate we send 63bytes of usb packets alternatively for
1439 * 7ms and 8ms to maintain the rate as 7.5ms.
1440 */
1441 if (data->usb_alt6_packet_flow) {
1442 interval = 7;
1443 data->usb_alt6_packet_flow = false;
1444 } else {
1445 interval = 6;
1446 data->usb_alt6_packet_flow = true;
1447 }
1448
1449 for (i = 0; i < interval; i++) {
1450 urb->iso_frame_desc[i].offset = offset;
1451 urb->iso_frame_desc[i].length = offset;
1452 }
1453
1454ignore_usb_alt6_packet_flow:
1455 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1456 urb->iso_frame_desc[i].offset = offset;
1457 urb->iso_frame_desc[i].length = len;
1458 i++;
1459 }
1460
1461 urb->number_of_packets = i;
1462}
1463
1464static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1465{
1466 int i, offset = 0;
1467
1468 BT_DBG("len %d mtu %d", len, mtu);
1469
1470 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1471 i++, offset += mtu, len -= mtu) {
1472 urb->iso_frame_desc[i].offset = offset;
1473 urb->iso_frame_desc[i].length = mtu;
1474 }
1475
1476 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1477 urb->iso_frame_desc[i].offset = offset;
1478 urb->iso_frame_desc[i].length = len;
1479 i++;
1480 }
1481
1482 urb->number_of_packets = i;
1483}
1484
1485static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1486{
1487 struct btusb_data *data = hci_get_drvdata(hdev);
1488 struct urb *urb;
1489 unsigned char *buf;
1490 unsigned int pipe;
1491 int err, size;
1492
1493 BT_DBG("%s", hdev->name);
1494
1495 if (!data->isoc_rx_ep)
1496 return -ENODEV;
1497
1498 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1499 if (!urb)
1500 return -ENOMEM;
1501
1502 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1503 BTUSB_MAX_ISOC_FRAMES;
1504
1505 buf = kmalloc(size, mem_flags);
1506 if (!buf) {
1507 usb_free_urb(urb);
1508 return -ENOMEM;
1509 }
1510
1511 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1512
1513 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1514 hdev, data->isoc_rx_ep->bInterval);
1515
1516 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1517
1518 __fill_isoc_descriptor(urb, size,
1519 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1520
1521 usb_anchor_urb(urb, &data->isoc_anchor);
1522
1523 err = usb_submit_urb(urb, mem_flags);
1524 if (err < 0) {
1525 if (err != -EPERM && err != -ENODEV)
1526 bt_dev_err(hdev, "urb %p submission failed (%d)",
1527 urb, -err);
1528 usb_unanchor_urb(urb);
1529 }
1530
1531 usb_free_urb(urb);
1532
1533 return err;
1534}
1535
1536static void btusb_diag_complete(struct urb *urb)
1537{
1538 struct hci_dev *hdev = urb->context;
1539 struct btusb_data *data = hci_get_drvdata(hdev);
1540 int err;
1541
1542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1543 urb->actual_length);
1544
1545 if (urb->status == 0) {
1546 struct sk_buff *skb;
1547
1548 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1549 if (skb) {
1550 skb_put_data(skb, urb->transfer_buffer,
1551 urb->actual_length);
1552 hci_recv_diag(hdev, skb);
1553 }
1554 } else if (urb->status == -ENOENT) {
1555 /* Avoid suspend failed when usb_kill_urb */
1556 return;
1557 }
1558
1559 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1560 return;
1561
1562 usb_anchor_urb(urb, &data->diag_anchor);
1563 usb_mark_last_busy(data->udev);
1564
1565 err = usb_submit_urb(urb, GFP_ATOMIC);
1566 if (err < 0) {
1567 /* -EPERM: urb is being killed;
1568 * -ENODEV: device got disconnected
1569 */
1570 if (err != -EPERM && err != -ENODEV)
1571 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1572 urb, -err);
1573 usb_unanchor_urb(urb);
1574 }
1575}
1576
1577static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1578{
1579 struct btusb_data *data = hci_get_drvdata(hdev);
1580 struct urb *urb;
1581 unsigned char *buf;
1582 unsigned int pipe;
1583 int err, size = HCI_MAX_FRAME_SIZE;
1584
1585 BT_DBG("%s", hdev->name);
1586
1587 if (!data->diag_rx_ep)
1588 return -ENODEV;
1589
1590 urb = usb_alloc_urb(0, mem_flags);
1591 if (!urb)
1592 return -ENOMEM;
1593
1594 buf = kmalloc(size, mem_flags);
1595 if (!buf) {
1596 usb_free_urb(urb);
1597 return -ENOMEM;
1598 }
1599
1600 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1601
1602 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1603 btusb_diag_complete, hdev);
1604
1605 urb->transfer_flags |= URB_FREE_BUFFER;
1606
1607 usb_mark_last_busy(data->udev);
1608 usb_anchor_urb(urb, &data->diag_anchor);
1609
1610 err = usb_submit_urb(urb, mem_flags);
1611 if (err < 0) {
1612 if (err != -EPERM && err != -ENODEV)
1613 bt_dev_err(hdev, "urb %p submission failed (%d)",
1614 urb, -err);
1615 usb_unanchor_urb(urb);
1616 }
1617
1618 usb_free_urb(urb);
1619
1620 return err;
1621}
1622
1623static void btusb_tx_complete(struct urb *urb)
1624{
1625 struct sk_buff *skb = urb->context;
1626 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1627 struct btusb_data *data = hci_get_drvdata(hdev);
1628 unsigned long flags;
1629
1630 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1631 urb->actual_length);
1632
1633 if (!test_bit(HCI_RUNNING, &hdev->flags))
1634 goto done;
1635
1636 if (!urb->status) {
1637 hdev->stat.byte_tx += urb->transfer_buffer_length;
1638 } else {
1639 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1640 hci_cmd_sync_cancel(hdev, -urb->status);
1641 hdev->stat.err_tx++;
1642 }
1643
1644done:
1645 spin_lock_irqsave(&data->txlock, flags);
1646 data->tx_in_flight--;
1647 spin_unlock_irqrestore(&data->txlock, flags);
1648
1649 kfree(urb->setup_packet);
1650
1651 kfree_skb(skb);
1652}
1653
1654static void btusb_isoc_tx_complete(struct urb *urb)
1655{
1656 struct sk_buff *skb = urb->context;
1657 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1658
1659 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1660 urb->actual_length);
1661
1662 if (!test_bit(HCI_RUNNING, &hdev->flags))
1663 goto done;
1664
1665 if (!urb->status)
1666 hdev->stat.byte_tx += urb->transfer_buffer_length;
1667 else
1668 hdev->stat.err_tx++;
1669
1670done:
1671 kfree(urb->setup_packet);
1672
1673 kfree_skb(skb);
1674}
1675
1676static int btusb_open(struct hci_dev *hdev)
1677{
1678 struct btusb_data *data = hci_get_drvdata(hdev);
1679 int err;
1680
1681 BT_DBG("%s", hdev->name);
1682
1683 err = usb_autopm_get_interface(data->intf);
1684 if (err < 0)
1685 return err;
1686
1687 /* Patching USB firmware files prior to starting any URBs of HCI path
1688 * It is more safe to use USB bulk channel for downloading USB patch
1689 */
1690 if (data->setup_on_usb) {
1691 err = data->setup_on_usb(hdev);
1692 if (err < 0)
1693 goto setup_fail;
1694 }
1695
1696 data->intf->needs_remote_wakeup = 1;
1697
1698 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1699 goto done;
1700
1701 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1702 if (err < 0)
1703 goto failed;
1704
1705 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1706 if (err < 0) {
1707 usb_kill_anchored_urbs(&data->intr_anchor);
1708 goto failed;
1709 }
1710
1711 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1712 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1713
1714 if (data->diag) {
1715 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1716 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1717 }
1718
1719done:
1720 usb_autopm_put_interface(data->intf);
1721 return 0;
1722
1723failed:
1724 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1725setup_fail:
1726 usb_autopm_put_interface(data->intf);
1727 return err;
1728}
1729
1730static void btusb_stop_traffic(struct btusb_data *data)
1731{
1732 usb_kill_anchored_urbs(&data->intr_anchor);
1733 usb_kill_anchored_urbs(&data->bulk_anchor);
1734 usb_kill_anchored_urbs(&data->isoc_anchor);
1735 usb_kill_anchored_urbs(&data->diag_anchor);
1736 usb_kill_anchored_urbs(&data->ctrl_anchor);
1737}
1738
1739static int btusb_close(struct hci_dev *hdev)
1740{
1741 struct btusb_data *data = hci_get_drvdata(hdev);
1742 int err;
1743
1744 BT_DBG("%s", hdev->name);
1745
1746 cancel_delayed_work(&data->rx_work);
1747 cancel_work_sync(&data->work);
1748 cancel_work_sync(&data->waker);
1749
1750 skb_queue_purge(&data->acl_q);
1751
1752 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1753 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1754 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1755 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1756
1757 btusb_stop_traffic(data);
1758 btusb_free_frags(data);
1759
1760 err = usb_autopm_get_interface(data->intf);
1761 if (err < 0)
1762 goto failed;
1763
1764 data->intf->needs_remote_wakeup = 0;
1765
1766 /* Enable remote wake up for auto-suspend */
1767 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1768 data->intf->needs_remote_wakeup = 1;
1769
1770 usb_autopm_put_interface(data->intf);
1771
1772failed:
1773 usb_scuttle_anchored_urbs(&data->deferred);
1774 return 0;
1775}
1776
1777static int btusb_flush(struct hci_dev *hdev)
1778{
1779 struct btusb_data *data = hci_get_drvdata(hdev);
1780
1781 BT_DBG("%s", hdev->name);
1782
1783 cancel_delayed_work(&data->rx_work);
1784
1785 skb_queue_purge(&data->acl_q);
1786
1787 usb_kill_anchored_urbs(&data->tx_anchor);
1788 btusb_free_frags(data);
1789
1790 return 0;
1791}
1792
1793static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1794{
1795 struct btusb_data *data = hci_get_drvdata(hdev);
1796 struct usb_ctrlrequest *dr;
1797 struct urb *urb;
1798 unsigned int pipe;
1799
1800 urb = usb_alloc_urb(0, GFP_KERNEL);
1801 if (!urb)
1802 return ERR_PTR(-ENOMEM);
1803
1804 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1805 if (!dr) {
1806 usb_free_urb(urb);
1807 return ERR_PTR(-ENOMEM);
1808 }
1809
1810 dr->bRequestType = data->cmdreq_type;
1811 dr->bRequest = data->cmdreq;
1812 dr->wIndex = 0;
1813 dr->wValue = 0;
1814 dr->wLength = __cpu_to_le16(skb->len);
1815
1816 pipe = usb_sndctrlpipe(data->udev, 0x00);
1817
1818 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1819 skb->data, skb->len, btusb_tx_complete, skb);
1820
1821 skb->dev = (void *)hdev;
1822
1823 return urb;
1824}
1825
1826static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1827{
1828 struct btusb_data *data = hci_get_drvdata(hdev);
1829 struct urb *urb;
1830 unsigned int pipe;
1831
1832 if (!data->bulk_tx_ep)
1833 return ERR_PTR(-ENODEV);
1834
1835 urb = usb_alloc_urb(0, GFP_KERNEL);
1836 if (!urb)
1837 return ERR_PTR(-ENOMEM);
1838
1839 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1840
1841 usb_fill_bulk_urb(urb, data->udev, pipe,
1842 skb->data, skb->len, btusb_tx_complete, skb);
1843
1844 skb->dev = (void *)hdev;
1845
1846 return urb;
1847}
1848
1849static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1850{
1851 struct btusb_data *data = hci_get_drvdata(hdev);
1852 struct urb *urb;
1853 unsigned int pipe;
1854
1855 if (!data->isoc_tx_ep)
1856 return ERR_PTR(-ENODEV);
1857
1858 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1859 if (!urb)
1860 return ERR_PTR(-ENOMEM);
1861
1862 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1863
1864 usb_fill_int_urb(urb, data->udev, pipe,
1865 skb->data, skb->len, btusb_isoc_tx_complete,
1866 skb, data->isoc_tx_ep->bInterval);
1867
1868 urb->transfer_flags = URB_ISO_ASAP;
1869
1870 if (data->isoc_altsetting == 6)
1871 __fill_isoc_descriptor_msbc(urb, skb->len,
1872 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1873 data);
1874 else
1875 __fill_isoc_descriptor(urb, skb->len,
1876 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1877 skb->dev = (void *)hdev;
1878
1879 return urb;
1880}
1881
1882static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1883{
1884 struct btusb_data *data = hci_get_drvdata(hdev);
1885 int err;
1886
1887 usb_anchor_urb(urb, &data->tx_anchor);
1888
1889 err = usb_submit_urb(urb, GFP_KERNEL);
1890 if (err < 0) {
1891 if (err != -EPERM && err != -ENODEV)
1892 bt_dev_err(hdev, "urb %p submission failed (%d)",
1893 urb, -err);
1894 kfree(urb->setup_packet);
1895 usb_unanchor_urb(urb);
1896 } else {
1897 usb_mark_last_busy(data->udev);
1898 }
1899
1900 usb_free_urb(urb);
1901 return err;
1902}
1903
1904static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1905{
1906 struct btusb_data *data = hci_get_drvdata(hdev);
1907 unsigned long flags;
1908 bool suspending;
1909
1910 spin_lock_irqsave(&data->txlock, flags);
1911 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1912 if (!suspending)
1913 data->tx_in_flight++;
1914 spin_unlock_irqrestore(&data->txlock, flags);
1915
1916 if (!suspending)
1917 return submit_tx_urb(hdev, urb);
1918
1919 usb_anchor_urb(urb, &data->deferred);
1920 schedule_work(&data->waker);
1921
1922 usb_free_urb(urb);
1923 return 0;
1924}
1925
1926static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1927{
1928 struct urb *urb;
1929
1930 BT_DBG("%s", hdev->name);
1931
1932 switch (hci_skb_pkt_type(skb)) {
1933 case HCI_COMMAND_PKT:
1934 urb = alloc_ctrl_urb(hdev, skb);
1935 if (IS_ERR(urb))
1936 return PTR_ERR(urb);
1937
1938 hdev->stat.cmd_tx++;
1939 return submit_or_queue_tx_urb(hdev, urb);
1940
1941 case HCI_ACLDATA_PKT:
1942 urb = alloc_bulk_urb(hdev, skb);
1943 if (IS_ERR(urb))
1944 return PTR_ERR(urb);
1945
1946 hdev->stat.acl_tx++;
1947 return submit_or_queue_tx_urb(hdev, urb);
1948
1949 case HCI_SCODATA_PKT:
1950 if (hci_conn_num(hdev, SCO_LINK) < 1)
1951 return -ENODEV;
1952
1953 urb = alloc_isoc_urb(hdev, skb);
1954 if (IS_ERR(urb))
1955 return PTR_ERR(urb);
1956
1957 hdev->stat.sco_tx++;
1958 return submit_tx_urb(hdev, urb);
1959
1960 case HCI_ISODATA_PKT:
1961 urb = alloc_bulk_urb(hdev, skb);
1962 if (IS_ERR(urb))
1963 return PTR_ERR(urb);
1964
1965 return submit_or_queue_tx_urb(hdev, urb);
1966 }
1967
1968 return -EILSEQ;
1969}
1970
1971static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1972{
1973 struct btusb_data *data = hci_get_drvdata(hdev);
1974
1975 BT_DBG("%s evt %d", hdev->name, evt);
1976
1977 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1978 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1979 data->air_mode = evt;
1980 schedule_work(&data->work);
1981 }
1982}
1983
1984static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1985{
1986 struct btusb_data *data = hci_get_drvdata(hdev);
1987 struct usb_interface *intf = data->isoc;
1988 struct usb_endpoint_descriptor *ep_desc;
1989 int i, err;
1990
1991 if (!data->isoc)
1992 return -ENODEV;
1993
1994 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1995 if (err < 0) {
1996 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1997 return err;
1998 }
1999
2000 data->isoc_altsetting = altsetting;
2001
2002 data->isoc_tx_ep = NULL;
2003 data->isoc_rx_ep = NULL;
2004
2005 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2006 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2007
2008 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2009 data->isoc_tx_ep = ep_desc;
2010 continue;
2011 }
2012
2013 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2014 data->isoc_rx_ep = ep_desc;
2015 continue;
2016 }
2017 }
2018
2019 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2020 bt_dev_err(hdev, "invalid SCO descriptors");
2021 return -ENODEV;
2022 }
2023
2024 return 0;
2025}
2026
2027static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2028{
2029 struct btusb_data *data = hci_get_drvdata(hdev);
2030 int err;
2031
2032 if (data->isoc_altsetting != new_alts) {
2033 unsigned long flags;
2034
2035 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2036 usb_kill_anchored_urbs(&data->isoc_anchor);
2037
2038 /* When isochronous alternate setting needs to be
2039 * changed, because SCO connection has been added
2040 * or removed, a packet fragment may be left in the
2041 * reassembling state. This could lead to wrongly
2042 * assembled fragments.
2043 *
2044 * Clear outstanding fragment when selecting a new
2045 * alternate setting.
2046 */
2047 spin_lock_irqsave(&data->rxlock, flags);
2048 kfree_skb(data->sco_skb);
2049 data->sco_skb = NULL;
2050 spin_unlock_irqrestore(&data->rxlock, flags);
2051
2052 err = __set_isoc_interface(hdev, new_alts);
2053 if (err < 0)
2054 return err;
2055 }
2056
2057 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2058 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2059 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2060 else
2061 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2062 }
2063
2064 return 0;
2065}
2066
2067static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2068 int alt)
2069{
2070 struct usb_interface *intf = data->isoc;
2071 int i;
2072
2073 BT_DBG("Looking for Alt no :%d", alt);
2074
2075 if (!intf)
2076 return NULL;
2077
2078 for (i = 0; i < intf->num_altsetting; i++) {
2079 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2080 return &intf->altsetting[i];
2081 }
2082
2083 return NULL;
2084}
2085
2086static void btusb_work(struct work_struct *work)
2087{
2088 struct btusb_data *data = container_of(work, struct btusb_data, work);
2089 struct hci_dev *hdev = data->hdev;
2090 int new_alts = 0;
2091 int err;
2092
2093 if (data->sco_num > 0) {
2094 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2095 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2096 if (err < 0) {
2097 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2098 usb_kill_anchored_urbs(&data->isoc_anchor);
2099 return;
2100 }
2101
2102 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2103 }
2104
2105 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2106 if (hdev->voice_setting & 0x0020) {
2107 static const int alts[3] = { 2, 4, 5 };
2108
2109 new_alts = alts[data->sco_num - 1];
2110 } else {
2111 new_alts = data->sco_num;
2112 }
2113 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2114 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2115 * many adapters do not support it. Alt 1 appears to
2116 * work for all adapters that do not have alt 6, and
2117 * which work with WBS at all. Some devices prefer
2118 * alt 3 (HCI payload >= 60 Bytes let air packet
2119 * data satisfy 60 bytes), requiring
2120 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2121 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2122 */
2123 if (btusb_find_altsetting(data, 6))
2124 new_alts = 6;
2125 else if (btusb_find_altsetting(data, 3) &&
2126 hdev->sco_mtu >= 72 &&
2127 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2128 new_alts = 3;
2129 else
2130 new_alts = 1;
2131 }
2132
2133 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2134 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2135 } else {
2136 usb_kill_anchored_urbs(&data->isoc_anchor);
2137
2138 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2139 __set_isoc_interface(hdev, 0);
2140
2141 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2142 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2143 }
2144}
2145
2146static void btusb_waker(struct work_struct *work)
2147{
2148 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2149 int err;
2150
2151 err = usb_autopm_get_interface(data->intf);
2152 if (err < 0)
2153 return;
2154
2155 usb_autopm_put_interface(data->intf);
2156}
2157
2158static void btusb_rx_work(struct work_struct *work)
2159{
2160 struct btusb_data *data = container_of(work, struct btusb_data,
2161 rx_work.work);
2162 struct sk_buff *skb;
2163
2164 /* Dequeue ACL data received during the interval */
2165 while ((skb = skb_dequeue(&data->acl_q)))
2166 data->recv_acl(data->hdev, skb);
2167}
2168
2169static int btusb_setup_bcm92035(struct hci_dev *hdev)
2170{
2171 struct sk_buff *skb;
2172 u8 val = 0x00;
2173
2174 BT_DBG("%s", hdev->name);
2175
2176 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2177 if (IS_ERR(skb))
2178 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2179 else
2180 kfree_skb(skb);
2181
2182 return 0;
2183}
2184
2185static int btusb_setup_csr(struct hci_dev *hdev)
2186{
2187 struct btusb_data *data = hci_get_drvdata(hdev);
2188 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2189 struct hci_rp_read_local_version *rp;
2190 struct sk_buff *skb;
2191 bool is_fake = false;
2192 int ret;
2193
2194 BT_DBG("%s", hdev->name);
2195
2196 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2197 HCI_INIT_TIMEOUT);
2198 if (IS_ERR(skb)) {
2199 int err = PTR_ERR(skb);
2200 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2201 return err;
2202 }
2203
2204 rp = skb_pull_data(skb, sizeof(*rp));
2205 if (!rp) {
2206 bt_dev_err(hdev, "CSR: Local version length mismatch");
2207 kfree_skb(skb);
2208 return -EIO;
2209 }
2210
2211 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2212 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2213
2214 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2215 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2216 le16_to_cpu(rp->manufacturer));
2217
2218 /* Detect a wide host of Chinese controllers that aren't CSR.
2219 *
2220 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2221 *
2222 * The main thing they have in common is that these are really popular low-cost
2223 * options that support newer Bluetooth versions but rely on heavy VID/PID
2224 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2225 *
2226 * We detect actual CSR devices by checking that the HCI manufacturer code
2227 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2228 * HCI rev values always match. As they both store the firmware number.
2229 */
2230 if (le16_to_cpu(rp->manufacturer) != 10 ||
2231 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2232 is_fake = true;
2233
2234 /* Known legit CSR firmware build numbers and their supported BT versions:
2235 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2236 * - 1.2 (0x2) -> 0x04d9, 0x0529
2237 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2238 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2239 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2240 *
2241 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2242 * support BT 1.1 only; so it's a dead giveaway when some
2243 * third-party BT 4.0 dongle reuses it.
2244 */
2245 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2246 rp->hci_ver > BLUETOOTH_VER_1_1)
2247 is_fake = true;
2248
2249 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2250 rp->hci_ver > BLUETOOTH_VER_1_2)
2251 is_fake = true;
2252
2253 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2254 rp->hci_ver > BLUETOOTH_VER_2_0)
2255 is_fake = true;
2256
2257 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2258 rp->hci_ver > BLUETOOTH_VER_2_1)
2259 is_fake = true;
2260
2261 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2262 rp->hci_ver > BLUETOOTH_VER_4_0)
2263 is_fake = true;
2264
2265 /* Other clones which beat all the above checks */
2266 else if (bcdDevice == 0x0134 &&
2267 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2268 rp->hci_ver == BLUETOOTH_VER_2_0)
2269 is_fake = true;
2270
2271 if (is_fake) {
2272 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2273
2274 /* Generally these clones have big discrepancies between
2275 * advertised features and what's actually supported.
2276 * Probably will need to be expanded in the future;
2277 * without these the controller will lock up.
2278 */
2279 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2280 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2281 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2282 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2283
2284 /* Clear the reset quirk since this is not an actual
2285 * early Bluetooth 1.1 device from CSR.
2286 */
2287 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2288 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2289
2290 /*
2291 * Special workaround for these BT 4.0 chip clones, and potentially more:
2292 *
2293 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2294 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2295 *
2296 * These controllers are really messed-up.
2297 *
2298 * 1. Their bulk RX endpoint will never report any data unless
2299 * the device was suspended at least once (yes, really).
2300 * 2. They will not wakeup when autosuspended and receiving data
2301 * on their bulk RX endpoint from e.g. a keyboard or mouse
2302 * (IOW remote-wakeup support is broken for the bulk endpoint).
2303 *
2304 * To fix 1. enable runtime-suspend, force-suspend the
2305 * HCI and then wake-it up by disabling runtime-suspend.
2306 *
2307 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2308 * will still be autosuspended when it is not open.
2309 *
2310 * --
2311 *
2312 * Because these are widespread problems we prefer generic solutions; so
2313 * apply this initialization quirk to every controller that gets here,
2314 * it should be harmless. The alternative is to not work at all.
2315 */
2316 pm_runtime_allow(&data->udev->dev);
2317
2318 ret = pm_runtime_suspend(&data->udev->dev);
2319 if (ret >= 0)
2320 msleep(200);
2321 else
2322 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2323
2324 pm_runtime_forbid(&data->udev->dev);
2325
2326 device_set_wakeup_capable(&data->udev->dev, false);
2327
2328 /* Re-enable autosuspend if this was requested */
2329 if (enable_autosuspend)
2330 usb_enable_autosuspend(data->udev);
2331 }
2332
2333 kfree_skb(skb);
2334
2335 return 0;
2336}
2337
2338static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2339{
2340 struct sk_buff *skb;
2341 struct hci_event_hdr *hdr;
2342 struct hci_ev_cmd_complete *evt;
2343
2344 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2345 if (!skb)
2346 return -ENOMEM;
2347
2348 hdr = skb_put(skb, sizeof(*hdr));
2349 hdr->evt = HCI_EV_CMD_COMPLETE;
2350 hdr->plen = sizeof(*evt) + 1;
2351
2352 evt = skb_put(skb, sizeof(*evt));
2353 evt->ncmd = 0x01;
2354 evt->opcode = cpu_to_le16(opcode);
2355
2356 skb_put_u8(skb, 0x00);
2357
2358 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2359
2360 return hci_recv_frame(hdev, skb);
2361}
2362
2363static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2364 int count)
2365{
2366 struct hci_dev *hdev = data->hdev;
2367
2368 /* When the device is in bootloader mode, then it can send
2369 * events via the bulk endpoint. These events are treated the
2370 * same way as the ones received from the interrupt endpoint.
2371 */
2372 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2373 return btusb_recv_intr(data, buffer, count);
2374
2375 return btusb_recv_bulk(data, buffer, count);
2376}
2377
2378static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2379{
2380 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2381 struct hci_event_hdr *hdr = (void *)skb->data;
2382
2383 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2384 hdr->plen > 0) {
2385 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2386 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2387
2388 switch (skb->data[2]) {
2389 case 0x02:
2390 /* When switching to the operational firmware
2391 * the device sends a vendor specific event
2392 * indicating that the bootup completed.
2393 */
2394 btintel_bootup(hdev, ptr, len);
2395 break;
2396 case 0x06:
2397 /* When the firmware loading completes the
2398 * device sends out a vendor specific event
2399 * indicating the result of the firmware
2400 * loading.
2401 */
2402 btintel_secure_send_result(hdev, ptr, len);
2403 break;
2404 }
2405 }
2406 }
2407
2408 return hci_recv_frame(hdev, skb);
2409}
2410
2411static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2412{
2413 struct urb *urb;
2414
2415 BT_DBG("%s", hdev->name);
2416
2417 switch (hci_skb_pkt_type(skb)) {
2418 case HCI_COMMAND_PKT:
2419 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2420 struct hci_command_hdr *cmd = (void *)skb->data;
2421 __u16 opcode = le16_to_cpu(cmd->opcode);
2422
2423 /* When in bootloader mode and the command 0xfc09
2424 * is received, it needs to be send down the
2425 * bulk endpoint. So allocate a bulk URB instead.
2426 */
2427 if (opcode == 0xfc09)
2428 urb = alloc_bulk_urb(hdev, skb);
2429 else
2430 urb = alloc_ctrl_urb(hdev, skb);
2431
2432 /* When the 0xfc01 command is issued to boot into
2433 * the operational firmware, it will actually not
2434 * send a command complete event. To keep the flow
2435 * control working inject that event here.
2436 */
2437 if (opcode == 0xfc01)
2438 inject_cmd_complete(hdev, opcode);
2439 } else {
2440 urb = alloc_ctrl_urb(hdev, skb);
2441 }
2442 if (IS_ERR(urb))
2443 return PTR_ERR(urb);
2444
2445 hdev->stat.cmd_tx++;
2446 return submit_or_queue_tx_urb(hdev, urb);
2447
2448 case HCI_ACLDATA_PKT:
2449 urb = alloc_bulk_urb(hdev, skb);
2450 if (IS_ERR(urb))
2451 return PTR_ERR(urb);
2452
2453 hdev->stat.acl_tx++;
2454 return submit_or_queue_tx_urb(hdev, urb);
2455
2456 case HCI_SCODATA_PKT:
2457 if (hci_conn_num(hdev, SCO_LINK) < 1)
2458 return -ENODEV;
2459
2460 urb = alloc_isoc_urb(hdev, skb);
2461 if (IS_ERR(urb))
2462 return PTR_ERR(urb);
2463
2464 hdev->stat.sco_tx++;
2465 return submit_tx_urb(hdev, urb);
2466
2467 case HCI_ISODATA_PKT:
2468 urb = alloc_bulk_urb(hdev, skb);
2469 if (IS_ERR(urb))
2470 return PTR_ERR(urb);
2471
2472 return submit_or_queue_tx_urb(hdev, urb);
2473 }
2474
2475 return -EILSEQ;
2476}
2477
2478static int btusb_setup_realtek(struct hci_dev *hdev)
2479{
2480 struct btusb_data *data = hci_get_drvdata(hdev);
2481 int ret;
2482
2483 ret = btrtl_setup_realtek(hdev);
2484
2485 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2486 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2487
2488 return ret;
2489}
2490
2491/* UHW CR mapping */
2492#define MTK_BT_MISC 0x70002510
2493#define MTK_BT_SUBSYS_RST 0x70002610
2494#define MTK_UDMA_INT_STA_BT 0x74000024
2495#define MTK_UDMA_INT_STA_BT1 0x74000308
2496#define MTK_BT_WDT_STATUS 0x740003A0
2497#define MTK_EP_RST_OPT 0x74011890
2498#define MTK_EP_RST_IN_OUT_OPT 0x00010001
2499#define MTK_BT_RST_DONE 0x00000100
2500#define MTK_BT_RESET_WAIT_MS 100
2501#define MTK_BT_RESET_NUM_TRIES 10
2502
2503static void btusb_mtk_wmt_recv(struct urb *urb)
2504{
2505 struct hci_dev *hdev = urb->context;
2506 struct btusb_data *data = hci_get_drvdata(hdev);
2507 struct sk_buff *skb;
2508 int err;
2509
2510 if (urb->status == 0 && urb->actual_length > 0) {
2511 hdev->stat.byte_rx += urb->actual_length;
2512
2513 /* WMT event shouldn't be fragmented and the size should be
2514 * less than HCI_WMT_MAX_EVENT_SIZE.
2515 */
2516 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2517 if (!skb) {
2518 hdev->stat.err_rx++;
2519 kfree(urb->setup_packet);
2520 return;
2521 }
2522
2523 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2524 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2525
2526 /* When someone waits for the WMT event, the skb is being cloned
2527 * and being processed the events from there then.
2528 */
2529 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2530 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2531 if (!data->evt_skb) {
2532 kfree_skb(skb);
2533 kfree(urb->setup_packet);
2534 return;
2535 }
2536 }
2537
2538 err = hci_recv_frame(hdev, skb);
2539 if (err < 0) {
2540 kfree_skb(data->evt_skb);
2541 data->evt_skb = NULL;
2542 kfree(urb->setup_packet);
2543 return;
2544 }
2545
2546 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2547 &data->flags)) {
2548 /* Barrier to sync with other CPUs */
2549 smp_mb__after_atomic();
2550 wake_up_bit(&data->flags,
2551 BTUSB_TX_WAIT_VND_EVT);
2552 }
2553 kfree(urb->setup_packet);
2554 return;
2555 } else if (urb->status == -ENOENT) {
2556 /* Avoid suspend failed when usb_kill_urb */
2557 return;
2558 }
2559
2560 usb_mark_last_busy(data->udev);
2561
2562 /* The URB complete handler is still called with urb->actual_length = 0
2563 * when the event is not available, so we should keep re-submitting
2564 * URB until WMT event returns, Also, It's necessary to wait some time
2565 * between the two consecutive control URBs to relax the target device
2566 * to generate the event. Otherwise, the WMT event cannot return from
2567 * the device successfully.
2568 */
2569 udelay(500);
2570
2571 usb_anchor_urb(urb, &data->ctrl_anchor);
2572 err = usb_submit_urb(urb, GFP_ATOMIC);
2573 if (err < 0) {
2574 kfree(urb->setup_packet);
2575 /* -EPERM: urb is being killed;
2576 * -ENODEV: device got disconnected
2577 */
2578 if (err != -EPERM && err != -ENODEV)
2579 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2580 urb, -err);
2581 usb_unanchor_urb(urb);
2582 }
2583}
2584
2585static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2586{
2587 struct btusb_data *data = hci_get_drvdata(hdev);
2588 struct usb_ctrlrequest *dr;
2589 unsigned char *buf;
2590 int err, size = 64;
2591 unsigned int pipe;
2592 struct urb *urb;
2593
2594 urb = usb_alloc_urb(0, GFP_KERNEL);
2595 if (!urb)
2596 return -ENOMEM;
2597
2598 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2599 if (!dr) {
2600 usb_free_urb(urb);
2601 return -ENOMEM;
2602 }
2603
2604 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2605 dr->bRequest = 1;
2606 dr->wIndex = cpu_to_le16(0);
2607 dr->wValue = cpu_to_le16(48);
2608 dr->wLength = cpu_to_le16(size);
2609
2610 buf = kmalloc(size, GFP_KERNEL);
2611 if (!buf) {
2612 kfree(dr);
2613 usb_free_urb(urb);
2614 return -ENOMEM;
2615 }
2616
2617 pipe = usb_rcvctrlpipe(data->udev, 0);
2618
2619 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2620 buf, size, btusb_mtk_wmt_recv, hdev);
2621
2622 urb->transfer_flags |= URB_FREE_BUFFER;
2623
2624 usb_anchor_urb(urb, &data->ctrl_anchor);
2625 err = usb_submit_urb(urb, GFP_KERNEL);
2626 if (err < 0) {
2627 if (err != -EPERM && err != -ENODEV)
2628 bt_dev_err(hdev, "urb %p submission failed (%d)",
2629 urb, -err);
2630 usb_unanchor_urb(urb);
2631 }
2632
2633 usb_free_urb(urb);
2634
2635 return err;
2636}
2637
2638static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2639 struct btmtk_hci_wmt_params *wmt_params)
2640{
2641 struct btusb_data *data = hci_get_drvdata(hdev);
2642 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2643 u32 hlen, status = BTMTK_WMT_INVALID;
2644 struct btmtk_hci_wmt_evt *wmt_evt;
2645 struct btmtk_hci_wmt_cmd *wc;
2646 struct btmtk_wmt_hdr *hdr;
2647 int err;
2648
2649 /* Send the WMT command and wait until the WMT event returns */
2650 hlen = sizeof(*hdr) + wmt_params->dlen;
2651 if (hlen > 255)
2652 return -EINVAL;
2653
2654 wc = kzalloc(hlen, GFP_KERNEL);
2655 if (!wc)
2656 return -ENOMEM;
2657
2658 hdr = &wc->hdr;
2659 hdr->dir = 1;
2660 hdr->op = wmt_params->op;
2661 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2662 hdr->flag = wmt_params->flag;
2663 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2664
2665 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2666
2667 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2668 * it needs constantly polling control pipe until the host received the
2669 * WMT event, thus, we should require to specifically acquire PM counter
2670 * on the USB to prevent the interface from entering auto suspended
2671 * while WMT cmd/event in progress.
2672 */
2673 err = usb_autopm_get_interface(data->intf);
2674 if (err < 0)
2675 goto err_free_wc;
2676
2677 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2678
2679 if (err < 0) {
2680 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2681 usb_autopm_put_interface(data->intf);
2682 goto err_free_wc;
2683 }
2684
2685 /* Submit control IN URB on demand to process the WMT event */
2686 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2687
2688 usb_autopm_put_interface(data->intf);
2689
2690 if (err < 0)
2691 goto err_free_wc;
2692
2693 /* The vendor specific WMT commands are all answered by a vendor
2694 * specific event and will have the Command Status or Command
2695 * Complete as with usual HCI command flow control.
2696 *
2697 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2698 * state to be cleared. The driver specific event receive routine
2699 * will clear that state and with that indicate completion of the
2700 * WMT command.
2701 */
2702 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2703 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2704 if (err == -EINTR) {
2705 bt_dev_err(hdev, "Execution of wmt command interrupted");
2706 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2707 goto err_free_wc;
2708 }
2709
2710 if (err) {
2711 bt_dev_err(hdev, "Execution of wmt command timed out");
2712 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2713 err = -ETIMEDOUT;
2714 goto err_free_wc;
2715 }
2716
2717 /* Parse and handle the return WMT event */
2718 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2719 if (wmt_evt->whdr.op != hdr->op) {
2720 bt_dev_err(hdev, "Wrong op received %d expected %d",
2721 wmt_evt->whdr.op, hdr->op);
2722 err = -EIO;
2723 goto err_free_skb;
2724 }
2725
2726 switch (wmt_evt->whdr.op) {
2727 case BTMTK_WMT_SEMAPHORE:
2728 if (wmt_evt->whdr.flag == 2)
2729 status = BTMTK_WMT_PATCH_UNDONE;
2730 else
2731 status = BTMTK_WMT_PATCH_DONE;
2732 break;
2733 case BTMTK_WMT_FUNC_CTRL:
2734 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2735 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2736 status = BTMTK_WMT_ON_DONE;
2737 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2738 status = BTMTK_WMT_ON_PROGRESS;
2739 else
2740 status = BTMTK_WMT_ON_UNDONE;
2741 break;
2742 case BTMTK_WMT_PATCH_DWNLD:
2743 if (wmt_evt->whdr.flag == 2)
2744 status = BTMTK_WMT_PATCH_DONE;
2745 else if (wmt_evt->whdr.flag == 1)
2746 status = BTMTK_WMT_PATCH_PROGRESS;
2747 else
2748 status = BTMTK_WMT_PATCH_UNDONE;
2749 break;
2750 }
2751
2752 if (wmt_params->status)
2753 *wmt_params->status = status;
2754
2755err_free_skb:
2756 kfree_skb(data->evt_skb);
2757 data->evt_skb = NULL;
2758err_free_wc:
2759 kfree(wc);
2760 return err;
2761}
2762
2763static int btusb_mtk_func_query(struct hci_dev *hdev)
2764{
2765 struct btmtk_hci_wmt_params wmt_params;
2766 int status, err;
2767 u8 param = 0;
2768
2769 /* Query whether the function is enabled */
2770 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2771 wmt_params.flag = 4;
2772 wmt_params.dlen = sizeof(param);
2773 wmt_params.data = ¶m;
2774 wmt_params.status = &status;
2775
2776 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2777 if (err < 0) {
2778 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2779 return err;
2780 }
2781
2782 return status;
2783}
2784
2785static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2786{
2787 struct hci_dev *hdev = data->hdev;
2788 int pipe, err;
2789 void *buf;
2790
2791 buf = kzalloc(4, GFP_KERNEL);
2792 if (!buf)
2793 return -ENOMEM;
2794
2795 put_unaligned_le32(val, buf);
2796
2797 pipe = usb_sndctrlpipe(data->udev, 0);
2798 err = usb_control_msg(data->udev, pipe, 0x02,
2799 0x5E,
2800 reg >> 16, reg & 0xffff,
2801 buf, 4, USB_CTRL_SET_TIMEOUT);
2802 if (err < 0) {
2803 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2804 goto err_free_buf;
2805 }
2806
2807err_free_buf:
2808 kfree(buf);
2809
2810 return err;
2811}
2812
2813static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2814{
2815 struct hci_dev *hdev = data->hdev;
2816 int pipe, err;
2817 void *buf;
2818
2819 buf = kzalloc(4, GFP_KERNEL);
2820 if (!buf)
2821 return -ENOMEM;
2822
2823 pipe = usb_rcvctrlpipe(data->udev, 0);
2824 err = usb_control_msg(data->udev, pipe, 0x01,
2825 0xDE,
2826 reg >> 16, reg & 0xffff,
2827 buf, 4, USB_CTRL_SET_TIMEOUT);
2828 if (err < 0) {
2829 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2830 goto err_free_buf;
2831 }
2832
2833 *val = get_unaligned_le32(buf);
2834 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2835
2836err_free_buf:
2837 kfree(buf);
2838
2839 return err;
2840}
2841
2842static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2843{
2844 int pipe, err, size = sizeof(u32);
2845 void *buf;
2846
2847 buf = kzalloc(size, GFP_KERNEL);
2848 if (!buf)
2849 return -ENOMEM;
2850
2851 pipe = usb_rcvctrlpipe(data->udev, 0);
2852 err = usb_control_msg(data->udev, pipe, 0x63,
2853 USB_TYPE_VENDOR | USB_DIR_IN,
2854 reg >> 16, reg & 0xffff,
2855 buf, size, USB_CTRL_SET_TIMEOUT);
2856 if (err < 0)
2857 goto err_free_buf;
2858
2859 *val = get_unaligned_le32(buf);
2860
2861err_free_buf:
2862 kfree(buf);
2863
2864 return err;
2865}
2866
2867static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2868{
2869 return btusb_mtk_reg_read(data, reg, id);
2870}
2871
2872static int btusb_mtk_setup(struct hci_dev *hdev)
2873{
2874 struct btusb_data *data = hci_get_drvdata(hdev);
2875 struct btmtk_hci_wmt_params wmt_params;
2876 ktime_t calltime, delta, rettime;
2877 struct btmtk_tci_sleep tci_sleep;
2878 unsigned long long duration;
2879 struct sk_buff *skb;
2880 const char *fwname;
2881 int err, status;
2882 u32 dev_id;
2883 char fw_bin_name[64];
2884 u32 fw_version = 0;
2885 u8 param;
2886
2887 calltime = ktime_get();
2888
2889 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
2890 if (err < 0) {
2891 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2892 return err;
2893 }
2894
2895 if (!dev_id) {
2896 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
2897 if (err < 0) {
2898 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2899 return err;
2900 }
2901 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
2902 if (err < 0) {
2903 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
2904 return err;
2905 }
2906 }
2907
2908 switch (dev_id) {
2909 case 0x7663:
2910 fwname = FIRMWARE_MT7663;
2911 break;
2912 case 0x7668:
2913 fwname = FIRMWARE_MT7668;
2914 break;
2915 case 0x7922:
2916 case 0x7961:
2917 snprintf(fw_bin_name, sizeof(fw_bin_name),
2918 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
2919 dev_id & 0xffff, (fw_version & 0xff) + 1);
2920 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
2921 btusb_mtk_hci_wmt_sync);
2922 if (err < 0) {
2923 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
2924 return err;
2925 }
2926
2927 /* It's Device EndPoint Reset Option Register */
2928 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
2929
2930 /* Enable Bluetooth protocol */
2931 param = 1;
2932 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2933 wmt_params.flag = 0;
2934 wmt_params.dlen = sizeof(param);
2935 wmt_params.data = ¶m;
2936 wmt_params.status = NULL;
2937
2938 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2939 if (err < 0) {
2940 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2941 return err;
2942 }
2943
2944 hci_set_msft_opcode(hdev, 0xFD30);
2945 hci_set_aosp_capable(hdev);
2946 goto done;
2947 default:
2948 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
2949 dev_id);
2950 return -ENODEV;
2951 }
2952
2953 /* Query whether the firmware is already download */
2954 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2955 wmt_params.flag = 1;
2956 wmt_params.dlen = 0;
2957 wmt_params.data = NULL;
2958 wmt_params.status = &status;
2959
2960 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2961 if (err < 0) {
2962 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2963 return err;
2964 }
2965
2966 if (status == BTMTK_WMT_PATCH_DONE) {
2967 bt_dev_info(hdev, "firmware already downloaded");
2968 goto ignore_setup_fw;
2969 }
2970
2971 /* Setup a firmware which the device definitely requires */
2972 err = btmtk_setup_firmware(hdev, fwname,
2973 btusb_mtk_hci_wmt_sync);
2974 if (err < 0)
2975 return err;
2976
2977ignore_setup_fw:
2978 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2979 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2980 2000, 5000000);
2981 /* -ETIMEDOUT happens */
2982 if (err < 0)
2983 return err;
2984
2985 /* The other errors happen in btusb_mtk_func_query */
2986 if (status < 0)
2987 return status;
2988
2989 if (status == BTMTK_WMT_ON_DONE) {
2990 bt_dev_info(hdev, "function already on");
2991 goto ignore_func_on;
2992 }
2993
2994 /* Enable Bluetooth protocol */
2995 param = 1;
2996 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2997 wmt_params.flag = 0;
2998 wmt_params.dlen = sizeof(param);
2999 wmt_params.data = ¶m;
3000 wmt_params.status = NULL;
3001
3002 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3003 if (err < 0) {
3004 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3005 return err;
3006 }
3007
3008ignore_func_on:
3009 /* Apply the low power environment setup */
3010 tci_sleep.mode = 0x5;
3011 tci_sleep.duration = cpu_to_le16(0x640);
3012 tci_sleep.host_duration = cpu_to_le16(0x640);
3013 tci_sleep.host_wakeup_pin = 0;
3014 tci_sleep.time_compensation = 0;
3015
3016 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3017 HCI_INIT_TIMEOUT);
3018 if (IS_ERR(skb)) {
3019 err = PTR_ERR(skb);
3020 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3021 return err;
3022 }
3023 kfree_skb(skb);
3024
3025done:
3026 rettime = ktime_get();
3027 delta = ktime_sub(rettime, calltime);
3028 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3029
3030 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3031
3032 return 0;
3033}
3034
3035static int btusb_mtk_shutdown(struct hci_dev *hdev)
3036{
3037 struct btmtk_hci_wmt_params wmt_params;
3038 u8 param = 0;
3039 int err;
3040
3041 /* Disable the device */
3042 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3043 wmt_params.flag = 0;
3044 wmt_params.dlen = sizeof(param);
3045 wmt_params.data = ¶m;
3046 wmt_params.status = NULL;
3047
3048 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3049 if (err < 0) {
3050 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3051 return err;
3052 }
3053
3054 return 0;
3055}
3056
3057static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
3058{
3059 struct btusb_data *data = hci_get_drvdata(hdev);
3060 u32 val;
3061 int err, retry = 0;
3062
3063 /* It's MediaTek specific bluetooth reset mechanism via USB */
3064 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3065 bt_dev_err(hdev, "last reset failed? Not resetting again");
3066 return;
3067 }
3068
3069 err = usb_autopm_get_interface(data->intf);
3070 if (err < 0)
3071 return;
3072
3073 btusb_stop_traffic(data);
3074 usb_kill_anchored_urbs(&data->tx_anchor);
3075
3076 /* It's Device EndPoint Reset Option Register */
3077 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3078 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3079 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3080
3081 /* Reset the bluetooth chip via USB interface. */
3082 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3083 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3084 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3085 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3086 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3087 /* MT7921 need to delay 20ms between toggle reset bit */
3088 msleep(20);
3089 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3090 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3091
3092 /* Poll the register until reset is completed */
3093 do {
3094 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3095 if (val & MTK_BT_RST_DONE) {
3096 bt_dev_dbg(hdev, "Bluetooth Reset Successfully");
3097 break;
3098 }
3099
3100 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR");
3101 retry++;
3102 msleep(MTK_BT_RESET_WAIT_MS);
3103 } while (retry < MTK_BT_RESET_NUM_TRIES);
3104
3105 btusb_mtk_id_get(data, 0x70010200, &val);
3106 if (!val)
3107 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3108
3109 usb_queue_reset_device(data->intf);
3110
3111 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3112}
3113
3114static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3115{
3116 struct btusb_data *data = hci_get_drvdata(hdev);
3117 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3118
3119 switch (handle) {
3120 case 0xfc6f: /* Firmware dump from device */
3121 /* When the firmware hangs, the device can no longer
3122 * suspend and thus disable auto-suspend.
3123 */
3124 usb_disable_autosuspend(data->udev);
3125 fallthrough;
3126 case 0x05ff: /* Firmware debug logging 1 */
3127 case 0x05fe: /* Firmware debug logging 2 */
3128 return hci_recv_diag(hdev, skb);
3129 }
3130
3131 return hci_recv_frame(hdev, skb);
3132}
3133
3134#ifdef CONFIG_PM
3135/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3136static int marvell_config_oob_wake(struct hci_dev *hdev)
3137{
3138 struct sk_buff *skb;
3139 struct btusb_data *data = hci_get_drvdata(hdev);
3140 struct device *dev = &data->udev->dev;
3141 u16 pin, gap, opcode;
3142 int ret;
3143 u8 cmd[5];
3144
3145 /* Move on if no wakeup pin specified */
3146 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3147 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3148 return 0;
3149
3150 /* Vendor specific command to configure a GPIO as wake-up pin */
3151 opcode = hci_opcode_pack(0x3F, 0x59);
3152 cmd[0] = opcode & 0xFF;
3153 cmd[1] = opcode >> 8;
3154 cmd[2] = 2; /* length of parameters that follow */
3155 cmd[3] = pin;
3156 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3157
3158 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3159 if (!skb) {
3160 bt_dev_err(hdev, "%s: No memory", __func__);
3161 return -ENOMEM;
3162 }
3163
3164 skb_put_data(skb, cmd, sizeof(cmd));
3165 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3166
3167 ret = btusb_send_frame(hdev, skb);
3168 if (ret) {
3169 bt_dev_err(hdev, "%s: configuration failed", __func__);
3170 kfree_skb(skb);
3171 return ret;
3172 }
3173
3174 return 0;
3175}
3176#endif
3177
3178static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3179 const bdaddr_t *bdaddr)
3180{
3181 struct sk_buff *skb;
3182 u8 buf[8];
3183 long ret;
3184
3185 buf[0] = 0xfe;
3186 buf[1] = sizeof(bdaddr_t);
3187 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3188
3189 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3190 if (IS_ERR(skb)) {
3191 ret = PTR_ERR(skb);
3192 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3193 ret);
3194 return ret;
3195 }
3196 kfree_skb(skb);
3197
3198 return 0;
3199}
3200
3201static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3202 const bdaddr_t *bdaddr)
3203{
3204 struct sk_buff *skb;
3205 u8 buf[10];
3206 long ret;
3207
3208 buf[0] = 0x01;
3209 buf[1] = 0x01;
3210 buf[2] = 0x00;
3211 buf[3] = sizeof(bdaddr_t);
3212 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3213
3214 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3215 if (IS_ERR(skb)) {
3216 ret = PTR_ERR(skb);
3217 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3218 return ret;
3219 }
3220 kfree_skb(skb);
3221
3222 return 0;
3223}
3224
3225static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3226 const bdaddr_t *bdaddr)
3227{
3228 struct sk_buff *skb;
3229 u8 buf[6];
3230 long ret;
3231
3232 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3233
3234 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3235 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3236 if (IS_ERR(skb)) {
3237 ret = PTR_ERR(skb);
3238 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3239 return ret;
3240 }
3241 kfree_skb(skb);
3242
3243 return 0;
3244}
3245
3246#define QCA_DFU_PACKET_LEN 4096
3247
3248#define QCA_GET_TARGET_VERSION 0x09
3249#define QCA_CHECK_STATUS 0x05
3250#define QCA_DFU_DOWNLOAD 0x01
3251
3252#define QCA_SYSCFG_UPDATED 0x40
3253#define QCA_PATCH_UPDATED 0x80
3254#define QCA_DFU_TIMEOUT 3000
3255#define QCA_FLAG_MULTI_NVM 0x80
3256#define QCA_BT_RESET_WAIT_MS 100
3257
3258#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3259#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3260
3261struct qca_version {
3262 __le32 rom_version;
3263 __le32 patch_version;
3264 __le32 ram_version;
3265 __u8 chip_id;
3266 __u8 platform_id;
3267 __le16 flag;
3268 __u8 reserved[4];
3269} __packed;
3270
3271struct qca_rampatch_version {
3272 __le16 rom_version_high;
3273 __le16 rom_version_low;
3274 __le16 patch_version;
3275} __packed;
3276
3277struct qca_device_info {
3278 u32 rom_version;
3279 u8 rampatch_hdr; /* length of header in rampatch */
3280 u8 nvm_hdr; /* length of header in NVM */
3281 u8 ver_offset; /* offset of version structure in rampatch */
3282};
3283
3284static const struct qca_device_info qca_devices_table[] = {
3285 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3286 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3287 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3288 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3289 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3290 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3291 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3292 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3293 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3294 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3295};
3296
3297static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3298 void *data, u16 size)
3299{
3300 int pipe, err;
3301 u8 *buf;
3302
3303 buf = kmalloc(size, GFP_KERNEL);
3304 if (!buf)
3305 return -ENOMEM;
3306
3307 /* Found some of USB hosts have IOT issues with ours so that we should
3308 * not wait until HCI layer is ready.
3309 */
3310 pipe = usb_rcvctrlpipe(udev, 0);
3311 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3312 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3313 if (err < 0) {
3314 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3315 goto done;
3316 }
3317
3318 memcpy(data, buf, size);
3319
3320done:
3321 kfree(buf);
3322
3323 return err;
3324}
3325
3326static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3327 const struct firmware *firmware,
3328 size_t hdr_size)
3329{
3330 struct btusb_data *btdata = hci_get_drvdata(hdev);
3331 struct usb_device *udev = btdata->udev;
3332 size_t count, size, sent = 0;
3333 int pipe, len, err;
3334 u8 *buf;
3335
3336 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3337 if (!buf)
3338 return -ENOMEM;
3339
3340 count = firmware->size;
3341
3342 size = min_t(size_t, count, hdr_size);
3343 memcpy(buf, firmware->data, size);
3344
3345 /* USB patches should go down to controller through USB path
3346 * because binary format fits to go down through USB channel.
3347 * USB control path is for patching headers and USB bulk is for
3348 * patch body.
3349 */
3350 pipe = usb_sndctrlpipe(udev, 0);
3351 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3352 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3353 if (err < 0) {
3354 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3355 goto done;
3356 }
3357
3358 sent += size;
3359 count -= size;
3360
3361 /* ep2 need time to switch from function acl to function dfu,
3362 * so we add 20ms delay here.
3363 */
3364 msleep(20);
3365
3366 while (count) {
3367 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3368
3369 memcpy(buf, firmware->data + sent, size);
3370
3371 pipe = usb_sndbulkpipe(udev, 0x02);
3372 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3373 QCA_DFU_TIMEOUT);
3374 if (err < 0) {
3375 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3376 sent, firmware->size, err);
3377 break;
3378 }
3379
3380 if (size != len) {
3381 bt_dev_err(hdev, "Failed to get bulk buffer");
3382 err = -EILSEQ;
3383 break;
3384 }
3385
3386 sent += size;
3387 count -= size;
3388 }
3389
3390done:
3391 kfree(buf);
3392 return err;
3393}
3394
3395static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3396 struct qca_version *ver,
3397 const struct qca_device_info *info)
3398{
3399 struct qca_rampatch_version *rver;
3400 const struct firmware *fw;
3401 u32 ver_rom, ver_patch, rver_rom;
3402 u16 rver_rom_low, rver_rom_high, rver_patch;
3403 char fwname[64];
3404 int err;
3405
3406 ver_rom = le32_to_cpu(ver->rom_version);
3407 ver_patch = le32_to_cpu(ver->patch_version);
3408
3409 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3410
3411 err = request_firmware(&fw, fwname, &hdev->dev);
3412 if (err) {
3413 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3414 fwname, err);
3415 return err;
3416 }
3417
3418 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3419
3420 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3421 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3422 rver_patch = le16_to_cpu(rver->patch_version);
3423
3424 if (ver_rom & ~0xffffU) {
3425 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3426 rver_rom = rver_rom_high << 16 | rver_rom_low;
3427 } else {
3428 rver_rom = rver_rom_low;
3429 }
3430
3431 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3432 "firmware rome 0x%x build 0x%x",
3433 rver_rom, rver_patch, ver_rom, ver_patch);
3434
3435 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3436 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3437 err = -EINVAL;
3438 goto done;
3439 }
3440
3441 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3442
3443done:
3444 release_firmware(fw);
3445
3446 return err;
3447}
3448
3449static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3450 const struct qca_version *ver)
3451{
3452 u32 rom_version = le32_to_cpu(ver->rom_version);
3453 u16 flag = le16_to_cpu(ver->flag);
3454
3455 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3456 /* The board_id should be split into two bytes
3457 * The 1st byte is chip ID, and the 2nd byte is platform ID
3458 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3459 * we have several platforms, and platform IDs are continuously added
3460 * Platform ID:
3461 * 0x00 is for Mobile
3462 * 0x01 is for X86
3463 * 0x02 is for Automotive
3464 * 0x03 is for Consumer electronic
3465 */
3466 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3467 const char *variant;
3468
3469 switch (le32_to_cpu(ver->ram_version)) {
3470 case WCN6855_2_0_RAM_VERSION_GF:
3471 case WCN6855_2_1_RAM_VERSION_GF:
3472 variant = "_gf";
3473 break;
3474 default:
3475 variant = "";
3476 break;
3477 }
3478
3479 if (board_id == 0) {
3480 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3481 rom_version, variant);
3482 } else {
3483 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3484 rom_version, variant, board_id);
3485 }
3486 } else {
3487 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3488 rom_version);
3489 }
3490
3491}
3492
3493static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3494 struct qca_version *ver,
3495 const struct qca_device_info *info)
3496{
3497 const struct firmware *fw;
3498 char fwname[64];
3499 int err;
3500
3501 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3502
3503 err = request_firmware(&fw, fwname, &hdev->dev);
3504 if (err) {
3505 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3506 fwname, err);
3507 return err;
3508 }
3509
3510 bt_dev_info(hdev, "using NVM file: %s", fwname);
3511
3512 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3513
3514 release_firmware(fw);
3515
3516 return err;
3517}
3518
3519/* identify the ROM version and check whether patches are needed */
3520static bool btusb_qca_need_patch(struct usb_device *udev)
3521{
3522 struct qca_version ver;
3523
3524 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3525 sizeof(ver)) < 0)
3526 return false;
3527 /* only low ROM versions need patches */
3528 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3529}
3530
3531static int btusb_setup_qca(struct hci_dev *hdev)
3532{
3533 struct btusb_data *btdata = hci_get_drvdata(hdev);
3534 struct usb_device *udev = btdata->udev;
3535 const struct qca_device_info *info = NULL;
3536 struct qca_version ver;
3537 u32 ver_rom;
3538 u8 status;
3539 int i, err;
3540
3541 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3542 sizeof(ver));
3543 if (err < 0)
3544 return err;
3545
3546 ver_rom = le32_to_cpu(ver.rom_version);
3547
3548 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3549 if (ver_rom == qca_devices_table[i].rom_version)
3550 info = &qca_devices_table[i];
3551 }
3552 if (!info) {
3553 /* If the rom_version is not matched in the qca_devices_table
3554 * and the high ROM version is not zero, we assume this chip no
3555 * need to load the rampatch and nvm.
3556 */
3557 if (ver_rom & ~0xffffU)
3558 return 0;
3559
3560 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3561 return -ENODEV;
3562 }
3563
3564 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3565 sizeof(status));
3566 if (err < 0)
3567 return err;
3568
3569 if (!(status & QCA_PATCH_UPDATED)) {
3570 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3571 if (err < 0)
3572 return err;
3573 }
3574
3575 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3576 sizeof(ver));
3577 if (err < 0)
3578 return err;
3579
3580 if (!(status & QCA_SYSCFG_UPDATED)) {
3581 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3582 if (err < 0)
3583 return err;
3584
3585 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3586 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3587 * cause potential enable failure.
3588 */
3589 if (info->rom_version >= 0x00130201)
3590 msleep(QCA_BT_RESET_WAIT_MS);
3591 }
3592
3593 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3594 * work with the likes of HSP/HFP mSBC.
3595 */
3596 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3597
3598 return 0;
3599}
3600
3601static inline int __set_diag_interface(struct hci_dev *hdev)
3602{
3603 struct btusb_data *data = hci_get_drvdata(hdev);
3604 struct usb_interface *intf = data->diag;
3605 int i;
3606
3607 if (!data->diag)
3608 return -ENODEV;
3609
3610 data->diag_tx_ep = NULL;
3611 data->diag_rx_ep = NULL;
3612
3613 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3614 struct usb_endpoint_descriptor *ep_desc;
3615
3616 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3617
3618 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3619 data->diag_tx_ep = ep_desc;
3620 continue;
3621 }
3622
3623 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3624 data->diag_rx_ep = ep_desc;
3625 continue;
3626 }
3627 }
3628
3629 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3630 bt_dev_err(hdev, "invalid diagnostic descriptors");
3631 return -ENODEV;
3632 }
3633
3634 return 0;
3635}
3636
3637static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3638{
3639 struct btusb_data *data = hci_get_drvdata(hdev);
3640 struct sk_buff *skb;
3641 struct urb *urb;
3642 unsigned int pipe;
3643
3644 if (!data->diag_tx_ep)
3645 return ERR_PTR(-ENODEV);
3646
3647 urb = usb_alloc_urb(0, GFP_KERNEL);
3648 if (!urb)
3649 return ERR_PTR(-ENOMEM);
3650
3651 skb = bt_skb_alloc(2, GFP_KERNEL);
3652 if (!skb) {
3653 usb_free_urb(urb);
3654 return ERR_PTR(-ENOMEM);
3655 }
3656
3657 skb_put_u8(skb, 0xf0);
3658 skb_put_u8(skb, enable);
3659
3660 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3661
3662 usb_fill_bulk_urb(urb, data->udev, pipe,
3663 skb->data, skb->len, btusb_tx_complete, skb);
3664
3665 skb->dev = (void *)hdev;
3666
3667 return urb;
3668}
3669
3670static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3671{
3672 struct btusb_data *data = hci_get_drvdata(hdev);
3673 struct urb *urb;
3674
3675 if (!data->diag)
3676 return -ENODEV;
3677
3678 if (!test_bit(HCI_RUNNING, &hdev->flags))
3679 return -ENETDOWN;
3680
3681 urb = alloc_diag_urb(hdev, enable);
3682 if (IS_ERR(urb))
3683 return PTR_ERR(urb);
3684
3685 return submit_or_queue_tx_urb(hdev, urb);
3686}
3687
3688#ifdef CONFIG_PM
3689static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3690{
3691 struct btusb_data *data = priv;
3692
3693 pm_wakeup_event(&data->udev->dev, 0);
3694 pm_system_wakeup();
3695
3696 /* Disable only if not already disabled (keep it balanced) */
3697 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3698 disable_irq_nosync(irq);
3699 disable_irq_wake(irq);
3700 }
3701 return IRQ_HANDLED;
3702}
3703
3704static const struct of_device_id btusb_match_table[] = {
3705 { .compatible = "usb1286,204e" },
3706 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3707 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3708 { }
3709};
3710MODULE_DEVICE_TABLE(of, btusb_match_table);
3711
3712/* Use an oob wakeup pin? */
3713static int btusb_config_oob_wake(struct hci_dev *hdev)
3714{
3715 struct btusb_data *data = hci_get_drvdata(hdev);
3716 struct device *dev = &data->udev->dev;
3717 int irq, ret;
3718
3719 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3720
3721 if (!of_match_device(btusb_match_table, dev))
3722 return 0;
3723
3724 /* Move on if no IRQ specified */
3725 irq = of_irq_get_byname(dev->of_node, "wakeup");
3726 if (irq <= 0) {
3727 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3728 return 0;
3729 }
3730
3731 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3732 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3733 0, "OOB Wake-on-BT", data);
3734 if (ret) {
3735 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3736 return ret;
3737 }
3738
3739 ret = device_init_wakeup(dev, true);
3740 if (ret) {
3741 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3742 return ret;
3743 }
3744
3745 data->oob_wake_irq = irq;
3746 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3747 return 0;
3748}
3749#endif
3750
3751static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3752{
3753 if (dmi_check_system(btusb_needs_reset_resume_table))
3754 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3755}
3756
3757static bool btusb_wakeup(struct hci_dev *hdev)
3758{
3759 struct btusb_data *data = hci_get_drvdata(hdev);
3760
3761 return device_may_wakeup(&data->udev->dev);
3762}
3763
3764static int btusb_shutdown_qca(struct hci_dev *hdev)
3765{
3766 struct sk_buff *skb;
3767
3768 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3769 if (IS_ERR(skb)) {
3770 bt_dev_err(hdev, "HCI reset during shutdown failed");
3771 return PTR_ERR(skb);
3772 }
3773 kfree_skb(skb);
3774
3775 return 0;
3776}
3777
3778static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3779 size_t count, loff_t *ppos)
3780{
3781 struct btusb_data *data = file->private_data;
3782 char buf[3];
3783
3784 buf[0] = data->poll_sync ? 'Y' : 'N';
3785 buf[1] = '\n';
3786 buf[2] = '\0';
3787 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3788}
3789
3790static ssize_t force_poll_sync_write(struct file *file,
3791 const char __user *user_buf,
3792 size_t count, loff_t *ppos)
3793{
3794 struct btusb_data *data = file->private_data;
3795 bool enable;
3796 int err;
3797
3798 err = kstrtobool_from_user(user_buf, count, &enable);
3799 if (err)
3800 return err;
3801
3802 /* Only allow changes while the adapter is down */
3803 if (test_bit(HCI_UP, &data->hdev->flags))
3804 return -EPERM;
3805
3806 if (data->poll_sync == enable)
3807 return -EALREADY;
3808
3809 data->poll_sync = enable;
3810
3811 return count;
3812}
3813
3814static const struct file_operations force_poll_sync_fops = {
3815 .open = simple_open,
3816 .read = force_poll_sync_read,
3817 .write = force_poll_sync_write,
3818 .llseek = default_llseek,
3819};
3820
3821static int btusb_probe(struct usb_interface *intf,
3822 const struct usb_device_id *id)
3823{
3824 struct usb_endpoint_descriptor *ep_desc;
3825 struct gpio_desc *reset_gpio;
3826 struct btusb_data *data;
3827 struct hci_dev *hdev;
3828 unsigned ifnum_base;
3829 int i, err, priv_size;
3830
3831 BT_DBG("intf %p id %p", intf, id);
3832
3833 /* interface numbers are hardcoded in the spec */
3834 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3835 if (!(id->driver_info & BTUSB_IFNUM_2))
3836 return -ENODEV;
3837 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3838 return -ENODEV;
3839 }
3840
3841 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3842
3843 if (!id->driver_info) {
3844 const struct usb_device_id *match;
3845
3846 match = usb_match_id(intf, blacklist_table);
3847 if (match)
3848 id = match;
3849 }
3850
3851 if (id->driver_info == BTUSB_IGNORE)
3852 return -ENODEV;
3853
3854 if (id->driver_info & BTUSB_ATH3012) {
3855 struct usb_device *udev = interface_to_usbdev(intf);
3856
3857 /* Old firmware would otherwise let ath3k driver load
3858 * patch and sysconfig files
3859 */
3860 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3861 !btusb_qca_need_patch(udev))
3862 return -ENODEV;
3863 }
3864
3865 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3866 if (!data)
3867 return -ENOMEM;
3868
3869 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3870 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3871
3872 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3873 data->intr_ep = ep_desc;
3874 continue;
3875 }
3876
3877 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3878 data->bulk_tx_ep = ep_desc;
3879 continue;
3880 }
3881
3882 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3883 data->bulk_rx_ep = ep_desc;
3884 continue;
3885 }
3886 }
3887
3888 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3889 return -ENODEV;
3890
3891 if (id->driver_info & BTUSB_AMP) {
3892 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3893 data->cmdreq = 0x2b;
3894 } else {
3895 data->cmdreq_type = USB_TYPE_CLASS;
3896 data->cmdreq = 0x00;
3897 }
3898
3899 data->udev = interface_to_usbdev(intf);
3900 data->intf = intf;
3901
3902 INIT_WORK(&data->work, btusb_work);
3903 INIT_WORK(&data->waker, btusb_waker);
3904 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3905
3906 skb_queue_head_init(&data->acl_q);
3907
3908 init_usb_anchor(&data->deferred);
3909 init_usb_anchor(&data->tx_anchor);
3910 spin_lock_init(&data->txlock);
3911
3912 init_usb_anchor(&data->intr_anchor);
3913 init_usb_anchor(&data->bulk_anchor);
3914 init_usb_anchor(&data->isoc_anchor);
3915 init_usb_anchor(&data->diag_anchor);
3916 init_usb_anchor(&data->ctrl_anchor);
3917 spin_lock_init(&data->rxlock);
3918
3919 priv_size = 0;
3920
3921 data->recv_event = hci_recv_frame;
3922 data->recv_bulk = btusb_recv_bulk;
3923
3924 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3925 /* Allocate extra space for Intel device */
3926 priv_size += sizeof(struct btintel_data);
3927
3928 /* Override the rx handlers */
3929 data->recv_event = btusb_recv_event_intel;
3930 data->recv_bulk = btusb_recv_bulk_intel;
3931 } else if (id->driver_info & BTUSB_REALTEK) {
3932 /* Allocate extra space for Realtek device */
3933 priv_size += sizeof(struct btrealtek_data);
3934 }
3935
3936 data->recv_acl = hci_recv_frame;
3937
3938 hdev = hci_alloc_dev_priv(priv_size);
3939 if (!hdev)
3940 return -ENOMEM;
3941
3942 hdev->bus = HCI_USB;
3943 hci_set_drvdata(hdev, data);
3944
3945 if (id->driver_info & BTUSB_AMP)
3946 hdev->dev_type = HCI_AMP;
3947 else
3948 hdev->dev_type = HCI_PRIMARY;
3949
3950 data->hdev = hdev;
3951
3952 SET_HCIDEV_DEV(hdev, &intf->dev);
3953
3954 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3955 GPIOD_OUT_LOW);
3956 if (IS_ERR(reset_gpio)) {
3957 err = PTR_ERR(reset_gpio);
3958 goto out_free_dev;
3959 } else if (reset_gpio) {
3960 data->reset_gpio = reset_gpio;
3961 }
3962
3963 hdev->open = btusb_open;
3964 hdev->close = btusb_close;
3965 hdev->flush = btusb_flush;
3966 hdev->send = btusb_send_frame;
3967 hdev->notify = btusb_notify;
3968 hdev->wakeup = btusb_wakeup;
3969
3970#ifdef CONFIG_PM
3971 err = btusb_config_oob_wake(hdev);
3972 if (err)
3973 goto out_free_dev;
3974
3975 /* Marvell devices may need a specific chip configuration */
3976 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3977 err = marvell_config_oob_wake(hdev);
3978 if (err)
3979 goto out_free_dev;
3980 }
3981#endif
3982 if (id->driver_info & BTUSB_CW6622)
3983 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3984
3985 if (id->driver_info & BTUSB_BCM2045)
3986 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3987
3988 if (id->driver_info & BTUSB_BCM92035)
3989 hdev->setup = btusb_setup_bcm92035;
3990
3991 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3992 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3993 hdev->manufacturer = 15;
3994 hdev->setup = btbcm_setup_patchram;
3995 hdev->set_diag = btusb_bcm_set_diag;
3996 hdev->set_bdaddr = btbcm_set_bdaddr;
3997
3998 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3999 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4000 }
4001
4002 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4003 (id->driver_info & BTUSB_BCM_APPLE)) {
4004 hdev->manufacturer = 15;
4005 hdev->setup = btbcm_setup_apple;
4006 hdev->set_diag = btusb_bcm_set_diag;
4007
4008 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4009 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4010 }
4011
4012 /* Combined Intel Device setup to support multiple setup routine */
4013 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4014 err = btintel_configure_setup(hdev);
4015 if (err)
4016 goto out_free_dev;
4017
4018 /* Transport specific configuration */
4019 hdev->send = btusb_send_frame_intel;
4020 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4021
4022 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4023 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4024
4025 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4026 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4027
4028 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4029 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4030 }
4031
4032 if (id->driver_info & BTUSB_MARVELL)
4033 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4034
4035 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4036 (id->driver_info & BTUSB_MEDIATEK)) {
4037 hdev->setup = btusb_mtk_setup;
4038 hdev->shutdown = btusb_mtk_shutdown;
4039 hdev->manufacturer = 70;
4040 hdev->cmd_timeout = btusb_mtk_cmd_timeout;
4041 hdev->set_bdaddr = btmtk_set_bdaddr;
4042 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4043 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4044 data->recv_acl = btusb_recv_acl_mtk;
4045 }
4046
4047 if (id->driver_info & BTUSB_SWAVE) {
4048 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4049 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4050 }
4051
4052 if (id->driver_info & BTUSB_INTEL_BOOT) {
4053 hdev->manufacturer = 2;
4054 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4055 }
4056
4057 if (id->driver_info & BTUSB_ATH3012) {
4058 data->setup_on_usb = btusb_setup_qca;
4059 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4060 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4061 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4062 }
4063
4064 if (id->driver_info & BTUSB_QCA_ROME) {
4065 data->setup_on_usb = btusb_setup_qca;
4066 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4067 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4068 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4069 btusb_check_needs_reset_resume(intf);
4070 }
4071
4072 if (id->driver_info & BTUSB_QCA_WCN6855) {
4073 data->setup_on_usb = btusb_setup_qca;
4074 hdev->shutdown = btusb_shutdown_qca;
4075 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4076 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4077 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4078 hci_set_msft_opcode(hdev, 0xFD70);
4079 }
4080
4081 if (id->driver_info & BTUSB_AMP) {
4082 /* AMP controllers do not support SCO packets */
4083 data->isoc = NULL;
4084 } else {
4085 /* Interface orders are hardcoded in the specification */
4086 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4087 data->isoc_ifnum = ifnum_base + 1;
4088 }
4089
4090 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4091 (id->driver_info & BTUSB_REALTEK)) {
4092 hdev->setup = btusb_setup_realtek;
4093 hdev->shutdown = btrtl_shutdown_realtek;
4094 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4095
4096 /* Realtek devices need to set remote wakeup on auto-suspend */
4097 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4098 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4099 }
4100
4101 if (!reset)
4102 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4103
4104 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4105 if (!disable_scofix)
4106 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4107 }
4108
4109 if (id->driver_info & BTUSB_BROKEN_ISOC)
4110 data->isoc = NULL;
4111
4112 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4113 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4114
4115 if (id->driver_info & BTUSB_VALID_LE_STATES)
4116 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4117
4118 if (id->driver_info & BTUSB_DIGIANSWER) {
4119 data->cmdreq_type = USB_TYPE_VENDOR;
4120 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4121 }
4122
4123 if (id->driver_info & BTUSB_CSR) {
4124 struct usb_device *udev = data->udev;
4125 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4126
4127 /* Old firmware would otherwise execute USB reset */
4128 if (bcdDevice < 0x117)
4129 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4130
4131 /* This must be set first in case we disable it for fakes */
4132 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4133
4134 /* Fake CSR devices with broken commands */
4135 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4136 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4137 hdev->setup = btusb_setup_csr;
4138 }
4139
4140 if (id->driver_info & BTUSB_SNIFFER) {
4141 struct usb_device *udev = data->udev;
4142
4143 /* New sniffer firmware has crippled HCI interface */
4144 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4145 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4146 }
4147
4148 if (id->driver_info & BTUSB_INTEL_BOOT) {
4149 /* A bug in the bootloader causes that interrupt interface is
4150 * only enabled after receiving SetInterface(0, AltSetting=0).
4151 */
4152 err = usb_set_interface(data->udev, 0, 0);
4153 if (err < 0) {
4154 BT_ERR("failed to set interface 0, alt 0 %d", err);
4155 goto out_free_dev;
4156 }
4157 }
4158
4159 if (data->isoc) {
4160 err = usb_driver_claim_interface(&btusb_driver,
4161 data->isoc, data);
4162 if (err < 0)
4163 goto out_free_dev;
4164 }
4165
4166 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4167 if (!usb_driver_claim_interface(&btusb_driver,
4168 data->diag, data))
4169 __set_diag_interface(hdev);
4170 else
4171 data->diag = NULL;
4172 }
4173
4174 if (enable_autosuspend)
4175 usb_enable_autosuspend(data->udev);
4176
4177 data->poll_sync = enable_poll_sync;
4178
4179 err = hci_register_dev(hdev);
4180 if (err < 0)
4181 goto out_free_dev;
4182
4183 usb_set_intfdata(intf, data);
4184
4185 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4186 &force_poll_sync_fops);
4187
4188 return 0;
4189
4190out_free_dev:
4191 if (data->reset_gpio)
4192 gpiod_put(data->reset_gpio);
4193 hci_free_dev(hdev);
4194 return err;
4195}
4196
4197static void btusb_disconnect(struct usb_interface *intf)
4198{
4199 struct btusb_data *data = usb_get_intfdata(intf);
4200 struct hci_dev *hdev;
4201
4202 BT_DBG("intf %p", intf);
4203
4204 if (!data)
4205 return;
4206
4207 hdev = data->hdev;
4208 usb_set_intfdata(data->intf, NULL);
4209
4210 if (data->isoc)
4211 usb_set_intfdata(data->isoc, NULL);
4212
4213 if (data->diag)
4214 usb_set_intfdata(data->diag, NULL);
4215
4216 hci_unregister_dev(hdev);
4217
4218 if (intf == data->intf) {
4219 if (data->isoc)
4220 usb_driver_release_interface(&btusb_driver, data->isoc);
4221 if (data->diag)
4222 usb_driver_release_interface(&btusb_driver, data->diag);
4223 } else if (intf == data->isoc) {
4224 if (data->diag)
4225 usb_driver_release_interface(&btusb_driver, data->diag);
4226 usb_driver_release_interface(&btusb_driver, data->intf);
4227 } else if (intf == data->diag) {
4228 usb_driver_release_interface(&btusb_driver, data->intf);
4229 if (data->isoc)
4230 usb_driver_release_interface(&btusb_driver, data->isoc);
4231 }
4232
4233 if (data->oob_wake_irq)
4234 device_init_wakeup(&data->udev->dev, false);
4235
4236 if (data->reset_gpio)
4237 gpiod_put(data->reset_gpio);
4238
4239 hci_free_dev(hdev);
4240}
4241
4242#ifdef CONFIG_PM
4243static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4244{
4245 struct btusb_data *data = usb_get_intfdata(intf);
4246
4247 BT_DBG("intf %p", intf);
4248
4249 if (data->suspend_count++)
4250 return 0;
4251
4252 spin_lock_irq(&data->txlock);
4253 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4254 set_bit(BTUSB_SUSPENDING, &data->flags);
4255 spin_unlock_irq(&data->txlock);
4256 } else {
4257 spin_unlock_irq(&data->txlock);
4258 data->suspend_count--;
4259 return -EBUSY;
4260 }
4261
4262 cancel_work_sync(&data->work);
4263
4264 btusb_stop_traffic(data);
4265 usb_kill_anchored_urbs(&data->tx_anchor);
4266
4267 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4268 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4269 enable_irq_wake(data->oob_wake_irq);
4270 enable_irq(data->oob_wake_irq);
4271 }
4272
4273 /* For global suspend, Realtek devices lose the loaded fw
4274 * in them. But for autosuspend, firmware should remain.
4275 * Actually, it depends on whether the usb host sends
4276 * set feature (enable wakeup) or not.
4277 */
4278 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4279 if (PMSG_IS_AUTO(message) &&
4280 device_can_wakeup(&data->udev->dev))
4281 data->udev->do_remote_wakeup = 1;
4282 else if (!PMSG_IS_AUTO(message) &&
4283 !device_may_wakeup(&data->udev->dev)) {
4284 data->udev->do_remote_wakeup = 0;
4285 data->udev->reset_resume = 1;
4286 }
4287 }
4288
4289 return 0;
4290}
4291
4292static void play_deferred(struct btusb_data *data)
4293{
4294 struct urb *urb;
4295 int err;
4296
4297 while ((urb = usb_get_from_anchor(&data->deferred))) {
4298 usb_anchor_urb(urb, &data->tx_anchor);
4299
4300 err = usb_submit_urb(urb, GFP_ATOMIC);
4301 if (err < 0) {
4302 if (err != -EPERM && err != -ENODEV)
4303 BT_ERR("%s urb %p submission failed (%d)",
4304 data->hdev->name, urb, -err);
4305 kfree(urb->setup_packet);
4306 usb_unanchor_urb(urb);
4307 usb_free_urb(urb);
4308 break;
4309 }
4310
4311 data->tx_in_flight++;
4312 usb_free_urb(urb);
4313 }
4314
4315 /* Cleanup the rest deferred urbs. */
4316 while ((urb = usb_get_from_anchor(&data->deferred))) {
4317 kfree(urb->setup_packet);
4318 usb_free_urb(urb);
4319 }
4320}
4321
4322static int btusb_resume(struct usb_interface *intf)
4323{
4324 struct btusb_data *data = usb_get_intfdata(intf);
4325 struct hci_dev *hdev = data->hdev;
4326 int err = 0;
4327
4328 BT_DBG("intf %p", intf);
4329
4330 if (--data->suspend_count)
4331 return 0;
4332
4333 /* Disable only if not already disabled (keep it balanced) */
4334 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4335 disable_irq(data->oob_wake_irq);
4336 disable_irq_wake(data->oob_wake_irq);
4337 }
4338
4339 if (!test_bit(HCI_RUNNING, &hdev->flags))
4340 goto done;
4341
4342 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4343 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4344 if (err < 0) {
4345 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4346 goto failed;
4347 }
4348 }
4349
4350 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4351 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4352 if (err < 0) {
4353 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4354 goto failed;
4355 }
4356
4357 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4358 }
4359
4360 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4361 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4362 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4363 else
4364 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4365 }
4366
4367 spin_lock_irq(&data->txlock);
4368 play_deferred(data);
4369 clear_bit(BTUSB_SUSPENDING, &data->flags);
4370 spin_unlock_irq(&data->txlock);
4371 schedule_work(&data->work);
4372
4373 return 0;
4374
4375failed:
4376 usb_scuttle_anchored_urbs(&data->deferred);
4377done:
4378 spin_lock_irq(&data->txlock);
4379 clear_bit(BTUSB_SUSPENDING, &data->flags);
4380 spin_unlock_irq(&data->txlock);
4381
4382 return err;
4383}
4384#endif
4385
4386static struct usb_driver btusb_driver = {
4387 .name = "btusb",
4388 .probe = btusb_probe,
4389 .disconnect = btusb_disconnect,
4390#ifdef CONFIG_PM
4391 .suspend = btusb_suspend,
4392 .resume = btusb_resume,
4393#endif
4394 .id_table = btusb_table,
4395 .supports_autosuspend = 1,
4396 .disable_hub_initiated_lpm = 1,
4397};
4398
4399module_usb_driver(btusb_driver);
4400
4401module_param(disable_scofix, bool, 0644);
4402MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4403
4404module_param(force_scofix, bool, 0644);
4405MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4406
4407module_param(enable_autosuspend, bool, 0644);
4408MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4409
4410module_param(reset, bool, 0644);
4411MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4412
4413MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4414MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4415MODULE_VERSION(VERSION);
4416MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <linux/debugfs.h>
20#include <linux/unaligned.h>
21
22#include <net/bluetooth/bluetooth.h>
23#include <net/bluetooth/hci_core.h>
24
25#include "btintel.h"
26#include "btbcm.h"
27#include "btrtl.h"
28#include "btmtk.h"
29
30#define VERSION "0.8"
31
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE BIT(0)
41#define BTUSB_DIGIANSWER BIT(1)
42#define BTUSB_CSR BIT(2)
43#define BTUSB_SNIFFER BIT(3)
44#define BTUSB_BCM92035 BIT(4)
45#define BTUSB_BROKEN_ISOC BIT(5)
46#define BTUSB_WRONG_SCO_MTU BIT(6)
47#define BTUSB_ATH3012 BIT(7)
48#define BTUSB_INTEL_COMBINED BIT(8)
49#define BTUSB_INTEL_BOOT BIT(9)
50#define BTUSB_BCM_PATCHRAM BIT(10)
51#define BTUSB_MARVELL BIT(11)
52#define BTUSB_SWAVE BIT(12)
53#define BTUSB_AMP BIT(13)
54#define BTUSB_QCA_ROME BIT(14)
55#define BTUSB_BCM_APPLE BIT(15)
56#define BTUSB_REALTEK BIT(16)
57#define BTUSB_BCM2045 BIT(17)
58#define BTUSB_IFNUM_2 BIT(18)
59#define BTUSB_CW6622 BIT(19)
60#define BTUSB_MEDIATEK BIT(20)
61#define BTUSB_WIDEBAND_SPEECH BIT(21)
62#define BTUSB_INVALID_LE_STATES BIT(22)
63#define BTUSB_QCA_WCN6855 BIT(23)
64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67#define BTUSB_ACTIONS_SEMI BIT(27)
68
69static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
75
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
78
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
82
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
85
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
88
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
91
92 /* Apple iMac11,1 */
93 { USB_DEVICE(0x05ac, 0x8215) },
94
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
97
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
100
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
103
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
106
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
109
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
112
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
115
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
119
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
122
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172
173 { } /* Terminating entry */
174};
175
176MODULE_DEVICE_TABLE(usb, btusb_table);
177
178static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH },
302 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH },
304 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
305 BTUSB_WIDEBAND_SPEECH },
306 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH },
308 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH },
310 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
311 BTUSB_WIDEBAND_SPEECH },
312 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH },
314 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH },
316 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
317 BTUSB_WIDEBAND_SPEECH },
318 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH },
320 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH },
322 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
323 BTUSB_WIDEBAND_SPEECH },
324 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH },
326 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH },
328 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
329 BTUSB_WIDEBAND_SPEECH },
330 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH },
332 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH },
334 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
335 BTUSB_WIDEBAND_SPEECH },
336 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH },
338 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH },
340 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
341 BTUSB_WIDEBAND_SPEECH },
342 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH },
344 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH },
346 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
347 BTUSB_WIDEBAND_SPEECH },
348 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH },
350 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH },
352 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
353 BTUSB_WIDEBAND_SPEECH },
354 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH },
356 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH },
358 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
359 BTUSB_WIDEBAND_SPEECH },
360 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH },
362 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH },
364 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
365 BTUSB_WIDEBAND_SPEECH },
366 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH },
368 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH },
370
371 /* QCA WCN785x chipset */
372 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH },
374 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
375 BTUSB_WIDEBAND_SPEECH },
376 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
377 BTUSB_WIDEBAND_SPEECH },
378 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH },
380 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH },
382
383 /* Broadcom BCM2035 */
384 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
385 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
386 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
387
388 /* Broadcom BCM2045 */
389 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
390 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
391
392 /* IBM/Lenovo ThinkPad with Broadcom chip */
393 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
394 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
395
396 /* HP laptop with Broadcom chip */
397 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
398
399 /* Dell laptop with Broadcom chip */
400 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
401
402 /* Dell Wireless 370 and 410 devices */
403 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
404 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
405
406 /* Belkin F8T012 and F8T013 devices */
407 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
408 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
409
410 /* Asus WL-BTD202 device */
411 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
412
413 /* Kensington Bluetooth USB adapter */
414 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* RTX Telecom based adapters with buggy SCO support */
417 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
418 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
419
420 /* CONWISE Technology based adapters with buggy SCO support */
421 { USB_DEVICE(0x0e5e, 0x6622),
422 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
423
424 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
425 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
426
427 /* Digianswer devices */
428 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
429 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
430
431 /* CSR BlueCore Bluetooth Sniffer */
432 { USB_DEVICE(0x0a12, 0x0002),
433 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
434
435 /* Frontline ComProbe Bluetooth Sniffer */
436 { USB_DEVICE(0x16d3, 0x0002),
437 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
438
439 /* Marvell Bluetooth devices */
440 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
441 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
442 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
443
444 /* Intel Bluetooth devices */
445 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
446 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
447 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
448 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
449 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
450 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
451 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
452 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
453 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
454 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
455 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
456 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
457 BTUSB_INTEL_NO_WBS_SUPPORT |
458 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
459 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
460 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
461 BTUSB_INTEL_NO_WBS_SUPPORT |
462 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
463 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
464 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
465 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
466 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
467
468 /* Other Intel Bluetooth devices */
469 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
470 .driver_info = BTUSB_IGNORE },
471
472 /* Realtek 8821CE Bluetooth devices */
473 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
474 BTUSB_WIDEBAND_SPEECH },
475
476 /* Realtek 8822CE Bluetooth devices */
477 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
478 BTUSB_WIDEBAND_SPEECH },
479 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
480 BTUSB_WIDEBAND_SPEECH },
481
482 /* Realtek 8822CU Bluetooth devices */
483 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
484 BTUSB_WIDEBAND_SPEECH },
485
486 /* Realtek 8852AE Bluetooth devices */
487 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
488 BTUSB_WIDEBAND_SPEECH },
489 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
490 BTUSB_WIDEBAND_SPEECH },
491 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
492 BTUSB_WIDEBAND_SPEECH },
493 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
494 BTUSB_WIDEBAND_SPEECH },
495 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
496 BTUSB_WIDEBAND_SPEECH },
497 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
498 BTUSB_WIDEBAND_SPEECH },
499 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8852CE Bluetooth devices */
503 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
508 BTUSB_WIDEBAND_SPEECH },
509 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517
518 /* Realtek 8852BE Bluetooth devices */
519 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
528 BTUSB_WIDEBAND_SPEECH },
529 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539
540 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
541 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
542 BTUSB_WIDEBAND_SPEECH },
543
544 /* Realtek 8922AE Bluetooth devices */
545 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553
554 /* Realtek Bluetooth devices */
555 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
556 .driver_info = BTUSB_REALTEK },
557
558 /* MediaTek Bluetooth devices */
559 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
560 .driver_info = BTUSB_MEDIATEK |
561 BTUSB_WIDEBAND_SPEECH },
562
563 /* Additional MediaTek MT7615E Bluetooth devices */
564 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
565
566 /* Additional MediaTek MT7663 Bluetooth devices */
567 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
568 BTUSB_WIDEBAND_SPEECH },
569 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
570 BTUSB_WIDEBAND_SPEECH },
571
572 /* Additional MediaTek MT7668 Bluetooth devices */
573 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
574 BTUSB_WIDEBAND_SPEECH },
575
576 /* Additional MediaTek MT7920 Bluetooth devices */
577 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
578 BTUSB_WIDEBAND_SPEECH },
579 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
580 BTUSB_WIDEBAND_SPEECH },
581 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH },
583 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH },
585
586 /* Additional MediaTek MT7921 Bluetooth devices */
587 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH },
589 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
590 BTUSB_WIDEBAND_SPEECH },
591 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
592 BTUSB_WIDEBAND_SPEECH },
593 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
594 BTUSB_WIDEBAND_SPEECH },
595 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH },
597 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
598 BTUSB_WIDEBAND_SPEECH },
599 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
600 BTUSB_WIDEBAND_SPEECH },
601 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH },
603 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
604 BTUSB_WIDEBAND_SPEECH },
605 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH },
607 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH },
609 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
610 BTUSB_WIDEBAND_SPEECH },
611
612 /* MediaTek MT7922 Bluetooth devices */
613 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH },
615 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH },
617
618 /* MediaTek MT7922A Bluetooth devices */
619 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
620 BTUSB_WIDEBAND_SPEECH },
621 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH },
623 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
624 BTUSB_WIDEBAND_SPEECH },
625 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
626 BTUSB_WIDEBAND_SPEECH },
627 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH },
629 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
630 BTUSB_WIDEBAND_SPEECH },
631 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
632 BTUSB_WIDEBAND_SPEECH },
633 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH },
635 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
636 BTUSB_WIDEBAND_SPEECH },
637 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
638 BTUSB_WIDEBAND_SPEECH },
639 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH },
641 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
642 BTUSB_WIDEBAND_SPEECH },
643 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
644 BTUSB_WIDEBAND_SPEECH },
645 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH },
647 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
648 BTUSB_WIDEBAND_SPEECH },
649 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
650 BTUSB_WIDEBAND_SPEECH },
651 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
652 BTUSB_WIDEBAND_SPEECH },
653
654 /* Additional MediaTek MT7925 Bluetooth devices */
655 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
656 BTUSB_WIDEBAND_SPEECH },
657 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
658 BTUSB_WIDEBAND_SPEECH },
659 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
660 BTUSB_WIDEBAND_SPEECH },
661 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
666 BTUSB_WIDEBAND_SPEECH },
667 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
668 BTUSB_WIDEBAND_SPEECH },
669 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
670 BTUSB_WIDEBAND_SPEECH },
671 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
672 BTUSB_WIDEBAND_SPEECH },
673 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
678 BTUSB_WIDEBAND_SPEECH },
679 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
680 BTUSB_WIDEBAND_SPEECH },
681 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
682 BTUSB_WIDEBAND_SPEECH },
683
684 /* Additional Realtek 8723AE Bluetooth devices */
685 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
686 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
687
688 /* Additional Realtek 8723BE Bluetooth devices */
689 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
690 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
691 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
692 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
693 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
694 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
695 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
696
697 /* Additional Realtek 8723BU Bluetooth devices */
698 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
699
700 /* Additional Realtek 8723DE Bluetooth devices */
701 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
702 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
703
704 /* Additional Realtek 8761BUV Bluetooth devices */
705 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
706 BTUSB_WIDEBAND_SPEECH },
707 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
708 BTUSB_WIDEBAND_SPEECH },
709 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
710 BTUSB_WIDEBAND_SPEECH },
711 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
712 BTUSB_WIDEBAND_SPEECH },
713 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
714 BTUSB_WIDEBAND_SPEECH },
715 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
716 BTUSB_WIDEBAND_SPEECH },
717 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
718 BTUSB_WIDEBAND_SPEECH },
719
720 /* Additional Realtek 8821AE Bluetooth devices */
721 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
722 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
723 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
724 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
725 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
726
727 /* Additional Realtek 8822BE Bluetooth devices */
728 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
729 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
730
731 /* Additional Realtek 8822CE Bluetooth devices */
732 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
753 BTUSB_WIDEBAND_SPEECH },
754
755 /* Actions Semiconductor ATS2851 based devices */
756 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
757
758 /* Silicon Wave based devices */
759 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
760
761 { } /* Terminating entry */
762};
763
764/* The Bluetooth USB module build into some devices needs to be reset on resume,
765 * this is a problem with the platform (likely shutting off all power) not with
766 * the module itself. So we use a DMI list to match known broken platforms.
767 */
768static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
769 {
770 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
771 .matches = {
772 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
773 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
774 },
775 },
776 {
777 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
778 .matches = {
779 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
780 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
781 },
782 },
783 {
784 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
785 .matches = {
786 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
787 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
788 },
789 },
790 {}
791};
792
793struct qca_dump_info {
794 /* fields for dump collection */
795 u16 id_vendor;
796 u16 id_product;
797 u32 fw_version;
798 u32 controller_id;
799 u32 ram_dump_size;
800 u16 ram_dump_seqno;
801};
802
803#define BTUSB_MAX_ISOC_FRAMES 10
804
805#define BTUSB_INTR_RUNNING 0
806#define BTUSB_BULK_RUNNING 1
807#define BTUSB_ISOC_RUNNING 2
808#define BTUSB_SUSPENDING 3
809#define BTUSB_DID_ISO_RESUME 4
810#define BTUSB_BOOTLOADER 5
811#define BTUSB_DOWNLOADING 6
812#define BTUSB_FIRMWARE_LOADED 7
813#define BTUSB_FIRMWARE_FAILED 8
814#define BTUSB_BOOTING 9
815#define BTUSB_DIAG_RUNNING 10
816#define BTUSB_OOB_WAKE_ENABLED 11
817#define BTUSB_HW_RESET_ACTIVE 12
818#define BTUSB_TX_WAIT_VND_EVT 13
819#define BTUSB_WAKEUP_AUTOSUSPEND 14
820#define BTUSB_USE_ALT3_FOR_WBS 15
821#define BTUSB_ALT6_CONTINUOUS_TX 16
822#define BTUSB_HW_SSR_ACTIVE 17
823
824struct btusb_data {
825 struct hci_dev *hdev;
826 struct usb_device *udev;
827 struct usb_interface *intf;
828 struct usb_interface *isoc;
829 struct usb_interface *diag;
830 unsigned isoc_ifnum;
831
832 unsigned long flags;
833
834 bool poll_sync;
835 int intr_interval;
836 struct work_struct work;
837 struct work_struct waker;
838 struct delayed_work rx_work;
839
840 struct sk_buff_head acl_q;
841
842 struct usb_anchor deferred;
843 struct usb_anchor tx_anchor;
844 int tx_in_flight;
845 spinlock_t txlock;
846
847 struct usb_anchor intr_anchor;
848 struct usb_anchor bulk_anchor;
849 struct usb_anchor isoc_anchor;
850 struct usb_anchor diag_anchor;
851 struct usb_anchor ctrl_anchor;
852 spinlock_t rxlock;
853
854 struct sk_buff *evt_skb;
855 struct sk_buff *acl_skb;
856 struct sk_buff *sco_skb;
857
858 struct usb_endpoint_descriptor *intr_ep;
859 struct usb_endpoint_descriptor *bulk_tx_ep;
860 struct usb_endpoint_descriptor *bulk_rx_ep;
861 struct usb_endpoint_descriptor *isoc_tx_ep;
862 struct usb_endpoint_descriptor *isoc_rx_ep;
863 struct usb_endpoint_descriptor *diag_tx_ep;
864 struct usb_endpoint_descriptor *diag_rx_ep;
865
866 struct gpio_desc *reset_gpio;
867
868 __u8 cmdreq_type;
869 __u8 cmdreq;
870
871 unsigned int sco_num;
872 unsigned int air_mode;
873 bool usb_alt6_packet_flow;
874 int isoc_altsetting;
875 int suspend_count;
876
877 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
878 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
879 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
880
881 int (*setup_on_usb)(struct hci_dev *hdev);
882
883 int (*suspend)(struct hci_dev *hdev);
884 int (*resume)(struct hci_dev *hdev);
885 int (*disconnect)(struct hci_dev *hdev);
886
887 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
888 unsigned cmd_timeout_cnt;
889
890 struct qca_dump_info qca_dump;
891};
892
893static void btusb_reset(struct hci_dev *hdev)
894{
895 struct btusb_data *data;
896 int err;
897
898 if (hdev->reset) {
899 hdev->reset(hdev);
900 return;
901 }
902
903 data = hci_get_drvdata(hdev);
904 /* This is not an unbalanced PM reference since the device will reset */
905 err = usb_autopm_get_interface(data->intf);
906 if (err) {
907 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
908 return;
909 }
910
911 bt_dev_err(hdev, "Resetting usb device.");
912 usb_queue_reset_device(data->intf);
913}
914
915static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
916{
917 struct btusb_data *data = hci_get_drvdata(hdev);
918 struct gpio_desc *reset_gpio = data->reset_gpio;
919 struct btintel_data *intel_data = hci_get_priv(hdev);
920
921 if (++data->cmd_timeout_cnt < 5)
922 return;
923
924 if (intel_data->acpi_reset_method) {
925 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
926 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
927 return;
928 }
929
930 bt_dev_err(hdev, "Initiating acpi reset method");
931 /* If ACPI reset method fails, lets try with legacy GPIO
932 * toggling
933 */
934 if (!intel_data->acpi_reset_method(hdev)) {
935 return;
936 }
937 }
938
939 if (!reset_gpio) {
940 btusb_reset(hdev);
941 return;
942 }
943
944 /*
945 * Toggle the hard reset line if the platform provides one. The reset
946 * is going to yank the device off the USB and then replug. So doing
947 * once is enough. The cleanup is handled correctly on the way out
948 * (standard USB disconnect), and the new device is detected cleanly
949 * and bound to the driver again like it should be.
950 */
951 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
952 bt_dev_err(hdev, "last reset failed? Not resetting again");
953 return;
954 }
955
956 bt_dev_err(hdev, "Initiating HW reset via gpio");
957 gpiod_set_value_cansleep(reset_gpio, 1);
958 msleep(100);
959 gpiod_set_value_cansleep(reset_gpio, 0);
960}
961
962#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
963#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
964#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
965
966#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
967
968struct rtk_dev_coredump_hdr {
969 u8 type;
970 u8 code;
971 u8 reserved[2];
972} __packed;
973
974static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
975 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
976{
977 struct sk_buff *skb;
978
979 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
980 if (!skb)
981 return;
982
983 skb_put_data(skb, hdr, sizeof(*hdr));
984 if (len)
985 skb_put_data(skb, buf, len);
986
987 if (!hci_devcd_init(hdev, skb->len)) {
988 hci_devcd_append(hdev, skb);
989 hci_devcd_complete(hdev);
990 } else {
991 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
992 kfree_skb(skb);
993 }
994}
995
996static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
997{
998 struct btusb_data *data = hci_get_drvdata(hdev);
999 struct gpio_desc *reset_gpio = data->reset_gpio;
1000 struct rtk_dev_coredump_hdr hdr = {
1001 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1002 };
1003
1004 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1005
1006 if (++data->cmd_timeout_cnt < 5)
1007 return;
1008
1009 if (!reset_gpio) {
1010 btusb_reset(hdev);
1011 return;
1012 }
1013
1014 /* Toggle the hard reset line. The Realtek device is going to
1015 * yank itself off the USB and then replug. The cleanup is handled
1016 * correctly on the way out (standard USB disconnect), and the new
1017 * device is detected cleanly and bound to the driver again like
1018 * it should be.
1019 */
1020 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1021 bt_dev_err(hdev, "last reset failed? Not resetting again");
1022 return;
1023 }
1024
1025 bt_dev_err(hdev, "Reset Realtek device via gpio");
1026 gpiod_set_value_cansleep(reset_gpio, 1);
1027 msleep(200);
1028 gpiod_set_value_cansleep(reset_gpio, 0);
1029}
1030
1031static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1032{
1033 struct rtk_dev_coredump_hdr hdr = {
1034 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1035 .code = code,
1036 };
1037
1038 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1039
1040 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1041}
1042
1043static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1044{
1045 struct btusb_data *data = hci_get_drvdata(hdev);
1046 struct gpio_desc *reset_gpio = data->reset_gpio;
1047
1048 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1049 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1050 return;
1051 }
1052
1053 if (++data->cmd_timeout_cnt < 5)
1054 return;
1055
1056 if (reset_gpio) {
1057 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1058
1059 /* Toggle the hard reset line. The qca bt device is going to
1060 * yank itself off the USB and then replug. The cleanup is handled
1061 * correctly on the way out (standard USB disconnect), and the new
1062 * device is detected cleanly and bound to the driver again like
1063 * it should be.
1064 */
1065 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1066 bt_dev_err(hdev, "last reset failed? Not resetting again");
1067 return;
1068 }
1069
1070 gpiod_set_value_cansleep(reset_gpio, 0);
1071 msleep(200);
1072 gpiod_set_value_cansleep(reset_gpio, 1);
1073
1074 return;
1075 }
1076
1077 btusb_reset(hdev);
1078}
1079
1080static inline void btusb_free_frags(struct btusb_data *data)
1081{
1082 unsigned long flags;
1083
1084 spin_lock_irqsave(&data->rxlock, flags);
1085
1086 dev_kfree_skb_irq(data->evt_skb);
1087 data->evt_skb = NULL;
1088
1089 dev_kfree_skb_irq(data->acl_skb);
1090 data->acl_skb = NULL;
1091
1092 dev_kfree_skb_irq(data->sco_skb);
1093 data->sco_skb = NULL;
1094
1095 spin_unlock_irqrestore(&data->rxlock, flags);
1096}
1097
1098static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1099{
1100 if (data->intr_interval) {
1101 /* Trigger dequeue immediately if an event is received */
1102 schedule_delayed_work(&data->rx_work, 0);
1103 }
1104
1105 return data->recv_event(data->hdev, skb);
1106}
1107
1108static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1109{
1110 struct sk_buff *skb;
1111 unsigned long flags;
1112 int err = 0;
1113
1114 spin_lock_irqsave(&data->rxlock, flags);
1115 skb = data->evt_skb;
1116
1117 while (count) {
1118 int len;
1119
1120 if (!skb) {
1121 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1122 if (!skb) {
1123 err = -ENOMEM;
1124 break;
1125 }
1126
1127 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1128 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1129 }
1130
1131 len = min_t(uint, hci_skb_expect(skb), count);
1132 skb_put_data(skb, buffer, len);
1133
1134 count -= len;
1135 buffer += len;
1136 hci_skb_expect(skb) -= len;
1137
1138 if (skb->len == HCI_EVENT_HDR_SIZE) {
1139 /* Complete event header */
1140 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1141
1142 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1143 kfree_skb(skb);
1144 skb = NULL;
1145
1146 err = -EILSEQ;
1147 break;
1148 }
1149 }
1150
1151 if (!hci_skb_expect(skb)) {
1152 /* Complete frame */
1153 btusb_recv_event(data, skb);
1154 skb = NULL;
1155 }
1156 }
1157
1158 data->evt_skb = skb;
1159 spin_unlock_irqrestore(&data->rxlock, flags);
1160
1161 return err;
1162}
1163
1164static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1165{
1166 /* Only queue ACL packet if intr_interval is set as it means
1167 * force_poll_sync has been enabled.
1168 */
1169 if (!data->intr_interval)
1170 return data->recv_acl(data->hdev, skb);
1171
1172 skb_queue_tail(&data->acl_q, skb);
1173 schedule_delayed_work(&data->rx_work, data->intr_interval);
1174
1175 return 0;
1176}
1177
1178static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1179{
1180 struct sk_buff *skb;
1181 unsigned long flags;
1182 int err = 0;
1183
1184 spin_lock_irqsave(&data->rxlock, flags);
1185 skb = data->acl_skb;
1186
1187 while (count) {
1188 int len;
1189
1190 if (!skb) {
1191 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1192 if (!skb) {
1193 err = -ENOMEM;
1194 break;
1195 }
1196
1197 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1198 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1199 }
1200
1201 len = min_t(uint, hci_skb_expect(skb), count);
1202 skb_put_data(skb, buffer, len);
1203
1204 count -= len;
1205 buffer += len;
1206 hci_skb_expect(skb) -= len;
1207
1208 if (skb->len == HCI_ACL_HDR_SIZE) {
1209 __le16 dlen = hci_acl_hdr(skb)->dlen;
1210
1211 /* Complete ACL header */
1212 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1213
1214 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1215 kfree_skb(skb);
1216 skb = NULL;
1217
1218 err = -EILSEQ;
1219 break;
1220 }
1221 }
1222
1223 if (!hci_skb_expect(skb)) {
1224 /* Complete frame */
1225 btusb_recv_acl(data, skb);
1226 skb = NULL;
1227 }
1228 }
1229
1230 data->acl_skb = skb;
1231 spin_unlock_irqrestore(&data->rxlock, flags);
1232
1233 return err;
1234}
1235
1236static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1237 struct hci_sco_hdr *hdr)
1238{
1239 __u16 handle;
1240
1241 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1242 // Can't validate, userspace controls everything.
1243 return true;
1244
1245 /*
1246 * USB isochronous transfers are not designed to be reliable and may
1247 * lose fragments. When this happens, the next first fragment
1248 * encountered might actually be a continuation fragment.
1249 * Validate the handle to detect it and drop it, or else the upper
1250 * layer will get garbage for a while.
1251 */
1252
1253 handle = hci_handle(__le16_to_cpu(hdr->handle));
1254
1255 switch (hci_conn_lookup_type(hdev, handle)) {
1256 case SCO_LINK:
1257 case ESCO_LINK:
1258 return true;
1259 default:
1260 return false;
1261 }
1262}
1263
1264static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1265{
1266 struct sk_buff *skb;
1267 unsigned long flags;
1268 int err = 0;
1269
1270 spin_lock_irqsave(&data->rxlock, flags);
1271 skb = data->sco_skb;
1272
1273 while (count) {
1274 int len;
1275
1276 if (!skb) {
1277 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1278 if (!skb) {
1279 err = -ENOMEM;
1280 break;
1281 }
1282
1283 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1284 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1285 }
1286
1287 len = min_t(uint, hci_skb_expect(skb), count);
1288 skb_put_data(skb, buffer, len);
1289
1290 count -= len;
1291 buffer += len;
1292 hci_skb_expect(skb) -= len;
1293
1294 if (skb->len == HCI_SCO_HDR_SIZE) {
1295 /* Complete SCO header */
1296 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1297
1298 hci_skb_expect(skb) = hdr->dlen;
1299
1300 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1301 !btusb_validate_sco_handle(data->hdev, hdr)) {
1302 kfree_skb(skb);
1303 skb = NULL;
1304
1305 err = -EILSEQ;
1306 break;
1307 }
1308 }
1309
1310 if (!hci_skb_expect(skb)) {
1311 /* Complete frame */
1312 hci_recv_frame(data->hdev, skb);
1313 skb = NULL;
1314 }
1315 }
1316
1317 data->sco_skb = skb;
1318 spin_unlock_irqrestore(&data->rxlock, flags);
1319
1320 return err;
1321}
1322
1323static void btusb_intr_complete(struct urb *urb)
1324{
1325 struct hci_dev *hdev = urb->context;
1326 struct btusb_data *data = hci_get_drvdata(hdev);
1327 int err;
1328
1329 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1330 urb->actual_length);
1331
1332 if (!test_bit(HCI_RUNNING, &hdev->flags))
1333 return;
1334
1335 if (urb->status == 0) {
1336 hdev->stat.byte_rx += urb->actual_length;
1337
1338 if (btusb_recv_intr(data, urb->transfer_buffer,
1339 urb->actual_length) < 0) {
1340 bt_dev_err(hdev, "corrupted event packet");
1341 hdev->stat.err_rx++;
1342 }
1343 } else if (urb->status == -ENOENT) {
1344 /* Avoid suspend failed when usb_kill_urb */
1345 return;
1346 }
1347
1348 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1349 return;
1350
1351 usb_mark_last_busy(data->udev);
1352 usb_anchor_urb(urb, &data->intr_anchor);
1353
1354 err = usb_submit_urb(urb, GFP_ATOMIC);
1355 if (err < 0) {
1356 /* -EPERM: urb is being killed;
1357 * -ENODEV: device got disconnected
1358 */
1359 if (err != -EPERM && err != -ENODEV)
1360 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1361 urb, -err);
1362 if (err != -EPERM)
1363 hci_cmd_sync_cancel(hdev, -err);
1364 usb_unanchor_urb(urb);
1365 }
1366}
1367
1368static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1369{
1370 struct btusb_data *data = hci_get_drvdata(hdev);
1371 struct urb *urb;
1372 unsigned char *buf;
1373 unsigned int pipe;
1374 int err, size;
1375
1376 BT_DBG("%s", hdev->name);
1377
1378 if (!data->intr_ep)
1379 return -ENODEV;
1380
1381 urb = usb_alloc_urb(0, mem_flags);
1382 if (!urb)
1383 return -ENOMEM;
1384
1385 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1386 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1387 /* Fake CSR devices don't seem to support sort-transter */
1388 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1389 else
1390 /* Use maximum HCI Event size so the USB stack handles
1391 * ZPL/short-transfer automatically.
1392 */
1393 size = HCI_MAX_EVENT_SIZE;
1394
1395 buf = kmalloc(size, mem_flags);
1396 if (!buf) {
1397 usb_free_urb(urb);
1398 return -ENOMEM;
1399 }
1400
1401 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1402
1403 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1404 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1405
1406 urb->transfer_flags |= URB_FREE_BUFFER;
1407
1408 usb_anchor_urb(urb, &data->intr_anchor);
1409
1410 err = usb_submit_urb(urb, mem_flags);
1411 if (err < 0) {
1412 if (err != -EPERM && err != -ENODEV)
1413 bt_dev_err(hdev, "urb %p submission failed (%d)",
1414 urb, -err);
1415 if (err != -EPERM)
1416 hci_cmd_sync_cancel(hdev, -err);
1417 usb_unanchor_urb(urb);
1418 }
1419
1420 /* Only initialize intr_interval if URB poll sync is enabled */
1421 if (!data->poll_sync)
1422 goto done;
1423
1424 /* The units are frames (milliseconds) for full and low speed devices,
1425 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1426 * devices.
1427 *
1428 * This is done once on open/resume so it shouldn't change even if
1429 * force_poll_sync changes.
1430 */
1431 switch (urb->dev->speed) {
1432 case USB_SPEED_SUPER_PLUS:
1433 case USB_SPEED_SUPER: /* units are 125us */
1434 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1435 break;
1436 default:
1437 data->intr_interval = msecs_to_jiffies(urb->interval);
1438 break;
1439 }
1440
1441done:
1442 usb_free_urb(urb);
1443
1444 return err;
1445}
1446
1447static void btusb_bulk_complete(struct urb *urb)
1448{
1449 struct hci_dev *hdev = urb->context;
1450 struct btusb_data *data = hci_get_drvdata(hdev);
1451 int err;
1452
1453 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1454 urb->actual_length);
1455
1456 if (!test_bit(HCI_RUNNING, &hdev->flags))
1457 return;
1458
1459 if (urb->status == 0) {
1460 hdev->stat.byte_rx += urb->actual_length;
1461
1462 if (data->recv_bulk(data, urb->transfer_buffer,
1463 urb->actual_length) < 0) {
1464 bt_dev_err(hdev, "corrupted ACL packet");
1465 hdev->stat.err_rx++;
1466 }
1467 } else if (urb->status == -ENOENT) {
1468 /* Avoid suspend failed when usb_kill_urb */
1469 return;
1470 }
1471
1472 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1473 return;
1474
1475 usb_anchor_urb(urb, &data->bulk_anchor);
1476 usb_mark_last_busy(data->udev);
1477
1478 err = usb_submit_urb(urb, GFP_ATOMIC);
1479 if (err < 0) {
1480 /* -EPERM: urb is being killed;
1481 * -ENODEV: device got disconnected
1482 */
1483 if (err != -EPERM && err != -ENODEV)
1484 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1485 urb, -err);
1486 usb_unanchor_urb(urb);
1487 }
1488}
1489
1490static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1491{
1492 struct btusb_data *data = hci_get_drvdata(hdev);
1493 struct urb *urb;
1494 unsigned char *buf;
1495 unsigned int pipe;
1496 int err, size = HCI_MAX_FRAME_SIZE;
1497
1498 BT_DBG("%s", hdev->name);
1499
1500 if (!data->bulk_rx_ep)
1501 return -ENODEV;
1502
1503 urb = usb_alloc_urb(0, mem_flags);
1504 if (!urb)
1505 return -ENOMEM;
1506
1507 buf = kmalloc(size, mem_flags);
1508 if (!buf) {
1509 usb_free_urb(urb);
1510 return -ENOMEM;
1511 }
1512
1513 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1514
1515 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1516 btusb_bulk_complete, hdev);
1517
1518 urb->transfer_flags |= URB_FREE_BUFFER;
1519
1520 usb_mark_last_busy(data->udev);
1521 usb_anchor_urb(urb, &data->bulk_anchor);
1522
1523 err = usb_submit_urb(urb, mem_flags);
1524 if (err < 0) {
1525 if (err != -EPERM && err != -ENODEV)
1526 bt_dev_err(hdev, "urb %p submission failed (%d)",
1527 urb, -err);
1528 usb_unanchor_urb(urb);
1529 }
1530
1531 usb_free_urb(urb);
1532
1533 return err;
1534}
1535
1536static void btusb_isoc_complete(struct urb *urb)
1537{
1538 struct hci_dev *hdev = urb->context;
1539 struct btusb_data *data = hci_get_drvdata(hdev);
1540 int i, err;
1541
1542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1543 urb->actual_length);
1544
1545 if (!test_bit(HCI_RUNNING, &hdev->flags))
1546 return;
1547
1548 if (urb->status == 0) {
1549 for (i = 0; i < urb->number_of_packets; i++) {
1550 unsigned int offset = urb->iso_frame_desc[i].offset;
1551 unsigned int length = urb->iso_frame_desc[i].actual_length;
1552
1553 if (urb->iso_frame_desc[i].status)
1554 continue;
1555
1556 hdev->stat.byte_rx += length;
1557
1558 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1559 length) < 0) {
1560 bt_dev_err(hdev, "corrupted SCO packet");
1561 hdev->stat.err_rx++;
1562 }
1563 }
1564 } else if (urb->status == -ENOENT) {
1565 /* Avoid suspend failed when usb_kill_urb */
1566 return;
1567 }
1568
1569 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1570 return;
1571
1572 usb_anchor_urb(urb, &data->isoc_anchor);
1573
1574 err = usb_submit_urb(urb, GFP_ATOMIC);
1575 if (err < 0) {
1576 /* -EPERM: urb is being killed;
1577 * -ENODEV: device got disconnected
1578 */
1579 if (err != -EPERM && err != -ENODEV)
1580 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1581 urb, -err);
1582 usb_unanchor_urb(urb);
1583 }
1584}
1585
1586static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1587 int mtu, struct btusb_data *data)
1588{
1589 int i = 0, offset = 0;
1590 unsigned int interval;
1591
1592 BT_DBG("len %d mtu %d", len, mtu);
1593
1594 /* For mSBC ALT 6 settings some chips need to transmit the data
1595 * continuously without the zero length of USB packets.
1596 */
1597 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1598 goto ignore_usb_alt6_packet_flow;
1599
1600 /* For mSBC ALT 6 setting the host will send the packet at continuous
1601 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1602 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1603 * To maintain the rate we send 63bytes of usb packets alternatively for
1604 * 7ms and 8ms to maintain the rate as 7.5ms.
1605 */
1606 if (data->usb_alt6_packet_flow) {
1607 interval = 7;
1608 data->usb_alt6_packet_flow = false;
1609 } else {
1610 interval = 6;
1611 data->usb_alt6_packet_flow = true;
1612 }
1613
1614 for (i = 0; i < interval; i++) {
1615 urb->iso_frame_desc[i].offset = offset;
1616 urb->iso_frame_desc[i].length = offset;
1617 }
1618
1619ignore_usb_alt6_packet_flow:
1620 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1621 urb->iso_frame_desc[i].offset = offset;
1622 urb->iso_frame_desc[i].length = len;
1623 i++;
1624 }
1625
1626 urb->number_of_packets = i;
1627}
1628
1629static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1630{
1631 int i, offset = 0;
1632
1633 BT_DBG("len %d mtu %d", len, mtu);
1634
1635 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1636 i++, offset += mtu, len -= mtu) {
1637 urb->iso_frame_desc[i].offset = offset;
1638 urb->iso_frame_desc[i].length = mtu;
1639 }
1640
1641 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1642 urb->iso_frame_desc[i].offset = offset;
1643 urb->iso_frame_desc[i].length = len;
1644 i++;
1645 }
1646
1647 urb->number_of_packets = i;
1648}
1649
1650static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1651{
1652 struct btusb_data *data = hci_get_drvdata(hdev);
1653 struct urb *urb;
1654 unsigned char *buf;
1655 unsigned int pipe;
1656 int err, size;
1657
1658 BT_DBG("%s", hdev->name);
1659
1660 if (!data->isoc_rx_ep)
1661 return -ENODEV;
1662
1663 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1664 if (!urb)
1665 return -ENOMEM;
1666
1667 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1668 BTUSB_MAX_ISOC_FRAMES;
1669
1670 buf = kmalloc(size, mem_flags);
1671 if (!buf) {
1672 usb_free_urb(urb);
1673 return -ENOMEM;
1674 }
1675
1676 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1677
1678 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1679 hdev, data->isoc_rx_ep->bInterval);
1680
1681 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1682
1683 __fill_isoc_descriptor(urb, size,
1684 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1685
1686 usb_anchor_urb(urb, &data->isoc_anchor);
1687
1688 err = usb_submit_urb(urb, mem_flags);
1689 if (err < 0) {
1690 if (err != -EPERM && err != -ENODEV)
1691 bt_dev_err(hdev, "urb %p submission failed (%d)",
1692 urb, -err);
1693 usb_unanchor_urb(urb);
1694 }
1695
1696 usb_free_urb(urb);
1697
1698 return err;
1699}
1700
1701static void btusb_diag_complete(struct urb *urb)
1702{
1703 struct hci_dev *hdev = urb->context;
1704 struct btusb_data *data = hci_get_drvdata(hdev);
1705 int err;
1706
1707 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1708 urb->actual_length);
1709
1710 if (urb->status == 0) {
1711 struct sk_buff *skb;
1712
1713 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1714 if (skb) {
1715 skb_put_data(skb, urb->transfer_buffer,
1716 urb->actual_length);
1717 hci_recv_diag(hdev, skb);
1718 }
1719 } else if (urb->status == -ENOENT) {
1720 /* Avoid suspend failed when usb_kill_urb */
1721 return;
1722 }
1723
1724 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1725 return;
1726
1727 usb_anchor_urb(urb, &data->diag_anchor);
1728 usb_mark_last_busy(data->udev);
1729
1730 err = usb_submit_urb(urb, GFP_ATOMIC);
1731 if (err < 0) {
1732 /* -EPERM: urb is being killed;
1733 * -ENODEV: device got disconnected
1734 */
1735 if (err != -EPERM && err != -ENODEV)
1736 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1737 urb, -err);
1738 usb_unanchor_urb(urb);
1739 }
1740}
1741
1742static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1743{
1744 struct btusb_data *data = hci_get_drvdata(hdev);
1745 struct urb *urb;
1746 unsigned char *buf;
1747 unsigned int pipe;
1748 int err, size = HCI_MAX_FRAME_SIZE;
1749
1750 BT_DBG("%s", hdev->name);
1751
1752 if (!data->diag_rx_ep)
1753 return -ENODEV;
1754
1755 urb = usb_alloc_urb(0, mem_flags);
1756 if (!urb)
1757 return -ENOMEM;
1758
1759 buf = kmalloc(size, mem_flags);
1760 if (!buf) {
1761 usb_free_urb(urb);
1762 return -ENOMEM;
1763 }
1764
1765 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1766
1767 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1768 btusb_diag_complete, hdev);
1769
1770 urb->transfer_flags |= URB_FREE_BUFFER;
1771
1772 usb_mark_last_busy(data->udev);
1773 usb_anchor_urb(urb, &data->diag_anchor);
1774
1775 err = usb_submit_urb(urb, mem_flags);
1776 if (err < 0) {
1777 if (err != -EPERM && err != -ENODEV)
1778 bt_dev_err(hdev, "urb %p submission failed (%d)",
1779 urb, -err);
1780 usb_unanchor_urb(urb);
1781 }
1782
1783 usb_free_urb(urb);
1784
1785 return err;
1786}
1787
1788static void btusb_tx_complete(struct urb *urb)
1789{
1790 struct sk_buff *skb = urb->context;
1791 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1792 struct btusb_data *data = hci_get_drvdata(hdev);
1793 unsigned long flags;
1794
1795 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1796 urb->actual_length);
1797
1798 if (!test_bit(HCI_RUNNING, &hdev->flags))
1799 goto done;
1800
1801 if (!urb->status) {
1802 hdev->stat.byte_tx += urb->transfer_buffer_length;
1803 } else {
1804 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1805 hci_cmd_sync_cancel(hdev, -urb->status);
1806 hdev->stat.err_tx++;
1807 }
1808
1809done:
1810 spin_lock_irqsave(&data->txlock, flags);
1811 data->tx_in_flight--;
1812 spin_unlock_irqrestore(&data->txlock, flags);
1813
1814 kfree(urb->setup_packet);
1815
1816 kfree_skb(skb);
1817}
1818
1819static void btusb_isoc_tx_complete(struct urb *urb)
1820{
1821 struct sk_buff *skb = urb->context;
1822 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1823
1824 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1825 urb->actual_length);
1826
1827 if (!test_bit(HCI_RUNNING, &hdev->flags))
1828 goto done;
1829
1830 if (!urb->status)
1831 hdev->stat.byte_tx += urb->transfer_buffer_length;
1832 else
1833 hdev->stat.err_tx++;
1834
1835done:
1836 kfree(urb->setup_packet);
1837
1838 kfree_skb(skb);
1839}
1840
1841static int btusb_open(struct hci_dev *hdev)
1842{
1843 struct btusb_data *data = hci_get_drvdata(hdev);
1844 int err;
1845
1846 BT_DBG("%s", hdev->name);
1847
1848 err = usb_autopm_get_interface(data->intf);
1849 if (err < 0)
1850 return err;
1851
1852 /* Patching USB firmware files prior to starting any URBs of HCI path
1853 * It is more safe to use USB bulk channel for downloading USB patch
1854 */
1855 if (data->setup_on_usb) {
1856 err = data->setup_on_usb(hdev);
1857 if (err < 0)
1858 goto setup_fail;
1859 }
1860
1861 data->intf->needs_remote_wakeup = 1;
1862
1863 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1864 goto done;
1865
1866 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1867 if (err < 0)
1868 goto failed;
1869
1870 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1871 if (err < 0) {
1872 usb_kill_anchored_urbs(&data->intr_anchor);
1873 goto failed;
1874 }
1875
1876 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1877 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1878
1879 if (data->diag) {
1880 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1881 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1882 }
1883
1884done:
1885 usb_autopm_put_interface(data->intf);
1886 return 0;
1887
1888failed:
1889 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1890setup_fail:
1891 usb_autopm_put_interface(data->intf);
1892 return err;
1893}
1894
1895static void btusb_stop_traffic(struct btusb_data *data)
1896{
1897 usb_kill_anchored_urbs(&data->intr_anchor);
1898 usb_kill_anchored_urbs(&data->bulk_anchor);
1899 usb_kill_anchored_urbs(&data->isoc_anchor);
1900 usb_kill_anchored_urbs(&data->diag_anchor);
1901 usb_kill_anchored_urbs(&data->ctrl_anchor);
1902}
1903
1904static int btusb_close(struct hci_dev *hdev)
1905{
1906 struct btusb_data *data = hci_get_drvdata(hdev);
1907 int err;
1908
1909 BT_DBG("%s", hdev->name);
1910
1911 cancel_delayed_work(&data->rx_work);
1912 cancel_work_sync(&data->work);
1913 cancel_work_sync(&data->waker);
1914
1915 skb_queue_purge(&data->acl_q);
1916
1917 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1918 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1919 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1920 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1921
1922 btusb_stop_traffic(data);
1923 btusb_free_frags(data);
1924
1925 err = usb_autopm_get_interface(data->intf);
1926 if (err < 0)
1927 goto failed;
1928
1929 data->intf->needs_remote_wakeup = 0;
1930
1931 /* Enable remote wake up for auto-suspend */
1932 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1933 data->intf->needs_remote_wakeup = 1;
1934
1935 usb_autopm_put_interface(data->intf);
1936
1937failed:
1938 usb_scuttle_anchored_urbs(&data->deferred);
1939 return 0;
1940}
1941
1942static int btusb_flush(struct hci_dev *hdev)
1943{
1944 struct btusb_data *data = hci_get_drvdata(hdev);
1945
1946 BT_DBG("%s", hdev->name);
1947
1948 cancel_delayed_work(&data->rx_work);
1949
1950 skb_queue_purge(&data->acl_q);
1951
1952 usb_kill_anchored_urbs(&data->tx_anchor);
1953 btusb_free_frags(data);
1954
1955 return 0;
1956}
1957
1958static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1959{
1960 struct btusb_data *data = hci_get_drvdata(hdev);
1961 struct usb_ctrlrequest *dr;
1962 struct urb *urb;
1963 unsigned int pipe;
1964
1965 urb = usb_alloc_urb(0, GFP_KERNEL);
1966 if (!urb)
1967 return ERR_PTR(-ENOMEM);
1968
1969 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1970 if (!dr) {
1971 usb_free_urb(urb);
1972 return ERR_PTR(-ENOMEM);
1973 }
1974
1975 dr->bRequestType = data->cmdreq_type;
1976 dr->bRequest = data->cmdreq;
1977 dr->wIndex = 0;
1978 dr->wValue = 0;
1979 dr->wLength = __cpu_to_le16(skb->len);
1980
1981 pipe = usb_sndctrlpipe(data->udev, 0x00);
1982
1983 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1984 skb->data, skb->len, btusb_tx_complete, skb);
1985
1986 skb->dev = (void *)hdev;
1987
1988 return urb;
1989}
1990
1991static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1992{
1993 struct btusb_data *data = hci_get_drvdata(hdev);
1994 struct urb *urb;
1995 unsigned int pipe;
1996
1997 if (!data->bulk_tx_ep)
1998 return ERR_PTR(-ENODEV);
1999
2000 urb = usb_alloc_urb(0, GFP_KERNEL);
2001 if (!urb)
2002 return ERR_PTR(-ENOMEM);
2003
2004 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2005
2006 usb_fill_bulk_urb(urb, data->udev, pipe,
2007 skb->data, skb->len, btusb_tx_complete, skb);
2008
2009 skb->dev = (void *)hdev;
2010
2011 return urb;
2012}
2013
2014static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2015{
2016 struct btusb_data *data = hci_get_drvdata(hdev);
2017 struct urb *urb;
2018 unsigned int pipe;
2019
2020 if (!data->isoc_tx_ep)
2021 return ERR_PTR(-ENODEV);
2022
2023 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2024 if (!urb)
2025 return ERR_PTR(-ENOMEM);
2026
2027 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2028
2029 usb_fill_int_urb(urb, data->udev, pipe,
2030 skb->data, skb->len, btusb_isoc_tx_complete,
2031 skb, data->isoc_tx_ep->bInterval);
2032
2033 urb->transfer_flags = URB_ISO_ASAP;
2034
2035 if (data->isoc_altsetting == 6)
2036 __fill_isoc_descriptor_msbc(urb, skb->len,
2037 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2038 data);
2039 else
2040 __fill_isoc_descriptor(urb, skb->len,
2041 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2042 skb->dev = (void *)hdev;
2043
2044 return urb;
2045}
2046
2047static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2048{
2049 struct btusb_data *data = hci_get_drvdata(hdev);
2050 int err;
2051
2052 usb_anchor_urb(urb, &data->tx_anchor);
2053
2054 err = usb_submit_urb(urb, GFP_KERNEL);
2055 if (err < 0) {
2056 if (err != -EPERM && err != -ENODEV)
2057 bt_dev_err(hdev, "urb %p submission failed (%d)",
2058 urb, -err);
2059 kfree(urb->setup_packet);
2060 usb_unanchor_urb(urb);
2061 } else {
2062 usb_mark_last_busy(data->udev);
2063 }
2064
2065 usb_free_urb(urb);
2066 return err;
2067}
2068
2069static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2070{
2071 struct btusb_data *data = hci_get_drvdata(hdev);
2072 unsigned long flags;
2073 bool suspending;
2074
2075 spin_lock_irqsave(&data->txlock, flags);
2076 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2077 if (!suspending)
2078 data->tx_in_flight++;
2079 spin_unlock_irqrestore(&data->txlock, flags);
2080
2081 if (!suspending)
2082 return submit_tx_urb(hdev, urb);
2083
2084 usb_anchor_urb(urb, &data->deferred);
2085 schedule_work(&data->waker);
2086
2087 usb_free_urb(urb);
2088 return 0;
2089}
2090
2091static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2092{
2093 struct urb *urb;
2094
2095 BT_DBG("%s", hdev->name);
2096
2097 switch (hci_skb_pkt_type(skb)) {
2098 case HCI_COMMAND_PKT:
2099 urb = alloc_ctrl_urb(hdev, skb);
2100 if (IS_ERR(urb))
2101 return PTR_ERR(urb);
2102
2103 hdev->stat.cmd_tx++;
2104 return submit_or_queue_tx_urb(hdev, urb);
2105
2106 case HCI_ACLDATA_PKT:
2107 urb = alloc_bulk_urb(hdev, skb);
2108 if (IS_ERR(urb))
2109 return PTR_ERR(urb);
2110
2111 hdev->stat.acl_tx++;
2112 return submit_or_queue_tx_urb(hdev, urb);
2113
2114 case HCI_SCODATA_PKT:
2115 if (hci_conn_num(hdev, SCO_LINK) < 1)
2116 return -ENODEV;
2117
2118 urb = alloc_isoc_urb(hdev, skb);
2119 if (IS_ERR(urb))
2120 return PTR_ERR(urb);
2121
2122 hdev->stat.sco_tx++;
2123 return submit_tx_urb(hdev, urb);
2124
2125 case HCI_ISODATA_PKT:
2126 urb = alloc_bulk_urb(hdev, skb);
2127 if (IS_ERR(urb))
2128 return PTR_ERR(urb);
2129
2130 return submit_or_queue_tx_urb(hdev, urb);
2131 }
2132
2133 return -EILSEQ;
2134}
2135
2136static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2137{
2138 struct btusb_data *data = hci_get_drvdata(hdev);
2139
2140 BT_DBG("%s evt %d", hdev->name, evt);
2141
2142 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2143 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2144 data->air_mode = evt;
2145 schedule_work(&data->work);
2146 }
2147}
2148
2149static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2150{
2151 struct btusb_data *data = hci_get_drvdata(hdev);
2152 struct usb_interface *intf = data->isoc;
2153 struct usb_endpoint_descriptor *ep_desc;
2154 int i, err;
2155
2156 if (!data->isoc)
2157 return -ENODEV;
2158
2159 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2160 if (err < 0) {
2161 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2162 return err;
2163 }
2164
2165 data->isoc_altsetting = altsetting;
2166
2167 data->isoc_tx_ep = NULL;
2168 data->isoc_rx_ep = NULL;
2169
2170 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2171 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2172
2173 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2174 data->isoc_tx_ep = ep_desc;
2175 continue;
2176 }
2177
2178 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2179 data->isoc_rx_ep = ep_desc;
2180 continue;
2181 }
2182 }
2183
2184 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2185 bt_dev_err(hdev, "invalid SCO descriptors");
2186 return -ENODEV;
2187 }
2188
2189 return 0;
2190}
2191
2192static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2193{
2194 struct btusb_data *data = hci_get_drvdata(hdev);
2195 int err;
2196
2197 if (data->isoc_altsetting != new_alts) {
2198 unsigned long flags;
2199
2200 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2201 usb_kill_anchored_urbs(&data->isoc_anchor);
2202
2203 /* When isochronous alternate setting needs to be
2204 * changed, because SCO connection has been added
2205 * or removed, a packet fragment may be left in the
2206 * reassembling state. This could lead to wrongly
2207 * assembled fragments.
2208 *
2209 * Clear outstanding fragment when selecting a new
2210 * alternate setting.
2211 */
2212 spin_lock_irqsave(&data->rxlock, flags);
2213 dev_kfree_skb_irq(data->sco_skb);
2214 data->sco_skb = NULL;
2215 spin_unlock_irqrestore(&data->rxlock, flags);
2216
2217 err = __set_isoc_interface(hdev, new_alts);
2218 if (err < 0)
2219 return err;
2220 }
2221
2222 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2223 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2224 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2225 else
2226 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2227 }
2228
2229 return 0;
2230}
2231
2232static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2233 int alt)
2234{
2235 struct usb_interface *intf = data->isoc;
2236 int i;
2237
2238 BT_DBG("Looking for Alt no :%d", alt);
2239
2240 if (!intf)
2241 return NULL;
2242
2243 for (i = 0; i < intf->num_altsetting; i++) {
2244 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2245 return &intf->altsetting[i];
2246 }
2247
2248 return NULL;
2249}
2250
2251static void btusb_work(struct work_struct *work)
2252{
2253 struct btusb_data *data = container_of(work, struct btusb_data, work);
2254 struct hci_dev *hdev = data->hdev;
2255 int new_alts = 0;
2256 int err;
2257
2258 if (data->sco_num > 0) {
2259 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2260 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2261 if (err < 0) {
2262 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2263 usb_kill_anchored_urbs(&data->isoc_anchor);
2264 return;
2265 }
2266
2267 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2268 }
2269
2270 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2271 if (hdev->voice_setting & 0x0020) {
2272 static const int alts[3] = { 2, 4, 5 };
2273
2274 new_alts = alts[data->sco_num - 1];
2275 } else {
2276 new_alts = data->sco_num;
2277 }
2278 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2279 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2280 * many adapters do not support it. Alt 1 appears to
2281 * work for all adapters that do not have alt 6, and
2282 * which work with WBS at all. Some devices prefer
2283 * alt 3 (HCI payload >= 60 Bytes let air packet
2284 * data satisfy 60 bytes), requiring
2285 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2286 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2287 */
2288 if (btusb_find_altsetting(data, 6))
2289 new_alts = 6;
2290 else if (btusb_find_altsetting(data, 3) &&
2291 hdev->sco_mtu >= 72 &&
2292 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2293 new_alts = 3;
2294 else
2295 new_alts = 1;
2296 }
2297
2298 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2299 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2300 } else {
2301 usb_kill_anchored_urbs(&data->isoc_anchor);
2302
2303 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2304 __set_isoc_interface(hdev, 0);
2305
2306 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2307 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2308 }
2309}
2310
2311static void btusb_waker(struct work_struct *work)
2312{
2313 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2314 int err;
2315
2316 err = usb_autopm_get_interface(data->intf);
2317 if (err < 0)
2318 return;
2319
2320 usb_autopm_put_interface(data->intf);
2321}
2322
2323static void btusb_rx_work(struct work_struct *work)
2324{
2325 struct btusb_data *data = container_of(work, struct btusb_data,
2326 rx_work.work);
2327 struct sk_buff *skb;
2328
2329 /* Dequeue ACL data received during the interval */
2330 while ((skb = skb_dequeue(&data->acl_q)))
2331 data->recv_acl(data->hdev, skb);
2332}
2333
2334static int btusb_setup_bcm92035(struct hci_dev *hdev)
2335{
2336 struct sk_buff *skb;
2337 u8 val = 0x00;
2338
2339 BT_DBG("%s", hdev->name);
2340
2341 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2342 if (IS_ERR(skb))
2343 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2344 else
2345 kfree_skb(skb);
2346
2347 return 0;
2348}
2349
2350static int btusb_setup_csr(struct hci_dev *hdev)
2351{
2352 struct btusb_data *data = hci_get_drvdata(hdev);
2353 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2354 struct hci_rp_read_local_version *rp;
2355 struct sk_buff *skb;
2356 bool is_fake = false;
2357 int ret;
2358
2359 BT_DBG("%s", hdev->name);
2360
2361 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2362 HCI_INIT_TIMEOUT);
2363 if (IS_ERR(skb)) {
2364 int err = PTR_ERR(skb);
2365 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2366 return err;
2367 }
2368
2369 rp = skb_pull_data(skb, sizeof(*rp));
2370 if (!rp) {
2371 bt_dev_err(hdev, "CSR: Local version length mismatch");
2372 kfree_skb(skb);
2373 return -EIO;
2374 }
2375
2376 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2377 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2378
2379 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2380 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2381 le16_to_cpu(rp->manufacturer));
2382
2383 /* Detect a wide host of Chinese controllers that aren't CSR.
2384 *
2385 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2386 *
2387 * The main thing they have in common is that these are really popular low-cost
2388 * options that support newer Bluetooth versions but rely on heavy VID/PID
2389 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2390 *
2391 * We detect actual CSR devices by checking that the HCI manufacturer code
2392 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2393 * HCI rev values always match. As they both store the firmware number.
2394 */
2395 if (le16_to_cpu(rp->manufacturer) != 10 ||
2396 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2397 is_fake = true;
2398
2399 /* Known legit CSR firmware build numbers and their supported BT versions:
2400 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2401 * - 1.2 (0x2) -> 0x04d9, 0x0529
2402 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2403 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2404 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2405 *
2406 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2407 * support BT 1.1 only; so it's a dead giveaway when some
2408 * third-party BT 4.0 dongle reuses it.
2409 */
2410 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2411 rp->hci_ver > BLUETOOTH_VER_1_1)
2412 is_fake = true;
2413
2414 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2415 rp->hci_ver > BLUETOOTH_VER_1_2)
2416 is_fake = true;
2417
2418 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2419 rp->hci_ver > BLUETOOTH_VER_2_0)
2420 is_fake = true;
2421
2422 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2423 rp->hci_ver > BLUETOOTH_VER_2_1)
2424 is_fake = true;
2425
2426 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2427 rp->hci_ver > BLUETOOTH_VER_4_0)
2428 is_fake = true;
2429
2430 /* Other clones which beat all the above checks */
2431 else if (bcdDevice == 0x0134 &&
2432 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2433 rp->hci_ver == BLUETOOTH_VER_2_0)
2434 is_fake = true;
2435
2436 if (is_fake) {
2437 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2438
2439 /* Generally these clones have big discrepancies between
2440 * advertised features and what's actually supported.
2441 * Probably will need to be expanded in the future;
2442 * without these the controller will lock up.
2443 */
2444 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2445 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2446 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2447 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2448
2449 /* Clear the reset quirk since this is not an actual
2450 * early Bluetooth 1.1 device from CSR.
2451 */
2452 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2453 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2454
2455 /*
2456 * Special workaround for these BT 4.0 chip clones, and potentially more:
2457 *
2458 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2459 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2460 *
2461 * These controllers are really messed-up.
2462 *
2463 * 1. Their bulk RX endpoint will never report any data unless
2464 * the device was suspended at least once (yes, really).
2465 * 2. They will not wakeup when autosuspended and receiving data
2466 * on their bulk RX endpoint from e.g. a keyboard or mouse
2467 * (IOW remote-wakeup support is broken for the bulk endpoint).
2468 *
2469 * To fix 1. enable runtime-suspend, force-suspend the
2470 * HCI and then wake-it up by disabling runtime-suspend.
2471 *
2472 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2473 * will still be autosuspended when it is not open.
2474 *
2475 * --
2476 *
2477 * Because these are widespread problems we prefer generic solutions; so
2478 * apply this initialization quirk to every controller that gets here,
2479 * it should be harmless. The alternative is to not work at all.
2480 */
2481 pm_runtime_allow(&data->udev->dev);
2482
2483 ret = pm_runtime_suspend(&data->udev->dev);
2484 if (ret >= 0)
2485 msleep(200);
2486 else
2487 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2488
2489 pm_runtime_forbid(&data->udev->dev);
2490
2491 device_set_wakeup_capable(&data->udev->dev, false);
2492
2493 /* Re-enable autosuspend if this was requested */
2494 if (enable_autosuspend)
2495 usb_enable_autosuspend(data->udev);
2496 }
2497
2498 kfree_skb(skb);
2499
2500 return 0;
2501}
2502
2503static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2504{
2505 struct sk_buff *skb;
2506 struct hci_event_hdr *hdr;
2507 struct hci_ev_cmd_complete *evt;
2508
2509 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2510 if (!skb)
2511 return -ENOMEM;
2512
2513 hdr = skb_put(skb, sizeof(*hdr));
2514 hdr->evt = HCI_EV_CMD_COMPLETE;
2515 hdr->plen = sizeof(*evt) + 1;
2516
2517 evt = skb_put(skb, sizeof(*evt));
2518 evt->ncmd = 0x01;
2519 evt->opcode = cpu_to_le16(opcode);
2520
2521 skb_put_u8(skb, 0x00);
2522
2523 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2524
2525 return hci_recv_frame(hdev, skb);
2526}
2527
2528static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2529 int count)
2530{
2531 struct hci_dev *hdev = data->hdev;
2532
2533 /* When the device is in bootloader mode, then it can send
2534 * events via the bulk endpoint. These events are treated the
2535 * same way as the ones received from the interrupt endpoint.
2536 */
2537 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2538 return btusb_recv_intr(data, buffer, count);
2539
2540 return btusb_recv_bulk(data, buffer, count);
2541}
2542
2543static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2544{
2545 struct urb *urb;
2546
2547 BT_DBG("%s", hdev->name);
2548
2549 switch (hci_skb_pkt_type(skb)) {
2550 case HCI_COMMAND_PKT:
2551 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2552 struct hci_command_hdr *cmd = (void *)skb->data;
2553 __u16 opcode = le16_to_cpu(cmd->opcode);
2554
2555 /* When in bootloader mode and the command 0xfc09
2556 * is received, it needs to be send down the
2557 * bulk endpoint. So allocate a bulk URB instead.
2558 */
2559 if (opcode == 0xfc09)
2560 urb = alloc_bulk_urb(hdev, skb);
2561 else
2562 urb = alloc_ctrl_urb(hdev, skb);
2563
2564 /* When the 0xfc01 command is issued to boot into
2565 * the operational firmware, it will actually not
2566 * send a command complete event. To keep the flow
2567 * control working inject that event here.
2568 */
2569 if (opcode == 0xfc01)
2570 inject_cmd_complete(hdev, opcode);
2571 } else {
2572 urb = alloc_ctrl_urb(hdev, skb);
2573 }
2574 if (IS_ERR(urb))
2575 return PTR_ERR(urb);
2576
2577 hdev->stat.cmd_tx++;
2578 return submit_or_queue_tx_urb(hdev, urb);
2579
2580 case HCI_ACLDATA_PKT:
2581 urb = alloc_bulk_urb(hdev, skb);
2582 if (IS_ERR(urb))
2583 return PTR_ERR(urb);
2584
2585 hdev->stat.acl_tx++;
2586 return submit_or_queue_tx_urb(hdev, urb);
2587
2588 case HCI_SCODATA_PKT:
2589 if (hci_conn_num(hdev, SCO_LINK) < 1)
2590 return -ENODEV;
2591
2592 urb = alloc_isoc_urb(hdev, skb);
2593 if (IS_ERR(urb))
2594 return PTR_ERR(urb);
2595
2596 hdev->stat.sco_tx++;
2597 return submit_tx_urb(hdev, urb);
2598
2599 case HCI_ISODATA_PKT:
2600 urb = alloc_bulk_urb(hdev, skb);
2601 if (IS_ERR(urb))
2602 return PTR_ERR(urb);
2603
2604 return submit_or_queue_tx_urb(hdev, urb);
2605 }
2606
2607 return -EILSEQ;
2608}
2609
2610static int btusb_setup_realtek(struct hci_dev *hdev)
2611{
2612 struct btusb_data *data = hci_get_drvdata(hdev);
2613 int ret;
2614
2615 ret = btrtl_setup_realtek(hdev);
2616
2617 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2618 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2619
2620 return ret;
2621}
2622
2623static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2624{
2625 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2626 struct rtk_dev_coredump_hdr hdr = {
2627 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2628 };
2629
2630 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2631 skb->len);
2632
2633 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2634 kfree_skb(skb);
2635
2636 return 0;
2637 }
2638
2639 return hci_recv_frame(hdev, skb);
2640}
2641
2642static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2643{
2644 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2645 int err;
2646
2647 /*
2648 * The function usb_driver_claim_interface() is documented to need
2649 * locks held if it's not called from a probe routine. The code here
2650 * is called from the hci_power_on workqueue, so grab the lock.
2651 */
2652 device_lock(&btmtk_data->isopkt_intf->dev);
2653 err = usb_driver_claim_interface(&btusb_driver,
2654 btmtk_data->isopkt_intf, data);
2655 device_unlock(&btmtk_data->isopkt_intf->dev);
2656 if (err < 0) {
2657 btmtk_data->isopkt_intf = NULL;
2658 bt_dev_err(data->hdev, "Failed to claim iso interface");
2659 return;
2660 }
2661
2662 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2663 init_usb_anchor(&btmtk_data->isopkt_anchor);
2664}
2665
2666static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2667{
2668 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2669
2670 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2671 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2672 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2673
2674 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2675 btmtk_data->isopkt_skb = NULL;
2676 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2677 usb_driver_release_interface(&btusb_driver,
2678 btmtk_data->isopkt_intf);
2679 }
2680
2681 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2682}
2683
2684static int btusb_mtk_disconnect(struct hci_dev *hdev)
2685{
2686 /* This function describes the specific additional steps taken by MediaTek
2687 * when Bluetooth usb driver's resume function is called.
2688 */
2689 btusb_mtk_release_iso_intf(hdev);
2690
2691 return 0;
2692}
2693
2694static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2695{
2696 struct btusb_data *data = hci_get_drvdata(hdev);
2697 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2698 int err;
2699
2700 /* It's MediaTek specific bluetooth reset mechanism via USB */
2701 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2702 bt_dev_err(hdev, "last reset failed? Not resetting again");
2703 return -EBUSY;
2704 }
2705
2706 err = usb_autopm_get_interface(data->intf);
2707 if (err < 0)
2708 return err;
2709
2710 /* Release MediaTek ISO data interface */
2711 btusb_mtk_release_iso_intf(hdev);
2712
2713 btusb_stop_traffic(data);
2714 usb_kill_anchored_urbs(&data->tx_anchor);
2715
2716 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2717
2718 usb_queue_reset_device(data->intf);
2719 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2720
2721 return err;
2722}
2723
2724static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2725{
2726 struct urb *urb;
2727
2728 BT_DBG("%s", hdev->name);
2729
2730 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2731 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2732 if (IS_ERR(urb))
2733 return PTR_ERR(urb);
2734
2735 return submit_or_queue_tx_urb(hdev, urb);
2736 } else {
2737 return btusb_send_frame(hdev, skb);
2738 }
2739}
2740
2741static int btusb_mtk_setup(struct hci_dev *hdev)
2742{
2743 struct btusb_data *data = hci_get_drvdata(hdev);
2744 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2745
2746 /* MediaTek WMT vendor cmd requiring below USB resources to
2747 * complete the handshake.
2748 */
2749 btmtk_data->drv_name = btusb_driver.name;
2750 btmtk_data->intf = data->intf;
2751 btmtk_data->udev = data->udev;
2752 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2753 btmtk_data->reset_sync = btusb_mtk_reset;
2754
2755 /* Claim ISO data interface and endpoint */
2756 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2757 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2758 btusb_mtk_claim_iso_intf(data);
2759 }
2760
2761 return btmtk_usb_setup(hdev);
2762}
2763
2764static int btusb_mtk_shutdown(struct hci_dev *hdev)
2765{
2766 int ret;
2767
2768 ret = btmtk_usb_shutdown(hdev);
2769
2770 /* Release MediaTek iso interface after shutdown */
2771 btusb_mtk_release_iso_intf(hdev);
2772
2773 return ret;
2774}
2775
2776#ifdef CONFIG_PM
2777/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2778static int marvell_config_oob_wake(struct hci_dev *hdev)
2779{
2780 struct sk_buff *skb;
2781 struct btusb_data *data = hci_get_drvdata(hdev);
2782 struct device *dev = &data->udev->dev;
2783 u16 pin, gap, opcode;
2784 int ret;
2785 u8 cmd[5];
2786
2787 /* Move on if no wakeup pin specified */
2788 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2789 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2790 return 0;
2791
2792 /* Vendor specific command to configure a GPIO as wake-up pin */
2793 opcode = hci_opcode_pack(0x3F, 0x59);
2794 cmd[0] = opcode & 0xFF;
2795 cmd[1] = opcode >> 8;
2796 cmd[2] = 2; /* length of parameters that follow */
2797 cmd[3] = pin;
2798 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2799
2800 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2801 if (!skb) {
2802 bt_dev_err(hdev, "%s: No memory", __func__);
2803 return -ENOMEM;
2804 }
2805
2806 skb_put_data(skb, cmd, sizeof(cmd));
2807 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2808
2809 ret = btusb_send_frame(hdev, skb);
2810 if (ret) {
2811 bt_dev_err(hdev, "%s: configuration failed", __func__);
2812 kfree_skb(skb);
2813 return ret;
2814 }
2815
2816 return 0;
2817}
2818#endif
2819
2820static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2821 const bdaddr_t *bdaddr)
2822{
2823 struct sk_buff *skb;
2824 u8 buf[8];
2825 long ret;
2826
2827 buf[0] = 0xfe;
2828 buf[1] = sizeof(bdaddr_t);
2829 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2830
2831 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2832 if (IS_ERR(skb)) {
2833 ret = PTR_ERR(skb);
2834 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2835 ret);
2836 return ret;
2837 }
2838 kfree_skb(skb);
2839
2840 return 0;
2841}
2842
2843static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2844 const bdaddr_t *bdaddr)
2845{
2846 struct sk_buff *skb;
2847 u8 buf[10];
2848 long ret;
2849
2850 buf[0] = 0x01;
2851 buf[1] = 0x01;
2852 buf[2] = 0x00;
2853 buf[3] = sizeof(bdaddr_t);
2854 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2855
2856 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2857 if (IS_ERR(skb)) {
2858 ret = PTR_ERR(skb);
2859 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2860 return ret;
2861 }
2862 kfree_skb(skb);
2863
2864 return 0;
2865}
2866
2867static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2868 const bdaddr_t *bdaddr)
2869{
2870 struct sk_buff *skb;
2871 u8 buf[6];
2872 long ret;
2873
2874 memcpy(buf, bdaddr, sizeof(bdaddr_t));
2875
2876 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2877 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2878 if (IS_ERR(skb)) {
2879 ret = PTR_ERR(skb);
2880 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2881 return ret;
2882 }
2883 kfree_skb(skb);
2884
2885 return 0;
2886}
2887
2888#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2889#define QCA_MEMDUMP_SIZE_MAX 0x100000
2890#define QCA_MEMDUMP_VSE_CLASS 0x01
2891#define QCA_MEMDUMP_MSG_TYPE 0x08
2892#define QCA_MEMDUMP_PKT_SIZE 248
2893#define QCA_LAST_SEQUENCE_NUM 0xffff
2894
2895struct qca_dump_hdr {
2896 u8 vse_class;
2897 u8 msg_type;
2898 __le16 seqno;
2899 u8 reserved;
2900 union {
2901 u8 data[0];
2902 struct {
2903 __le32 ram_dump_size;
2904 u8 data0[0];
2905 } __packed;
2906 };
2907} __packed;
2908
2909
2910static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2911{
2912 char buf[128];
2913 struct btusb_data *btdata = hci_get_drvdata(hdev);
2914
2915 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2916 btdata->qca_dump.controller_id);
2917 skb_put_data(skb, buf, strlen(buf));
2918
2919 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2920 btdata->qca_dump.fw_version);
2921 skb_put_data(skb, buf, strlen(buf));
2922
2923 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2924 btusb_driver.name);
2925 skb_put_data(skb, buf, strlen(buf));
2926
2927 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2928 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2929 skb_put_data(skb, buf, strlen(buf));
2930
2931 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2932 hdev->lmp_subver);
2933 skb_put_data(skb, buf, strlen(buf));
2934}
2935
2936static void btusb_coredump_qca(struct hci_dev *hdev)
2937{
2938 int err;
2939 static const u8 param[] = { 0x26 };
2940
2941 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2942 if (err < 0)
2943 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2944}
2945
2946/*
2947 * ==0: not a dump pkt.
2948 * < 0: fails to handle a dump pkt
2949 * > 0: otherwise.
2950 */
2951static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2952{
2953 int ret = 1;
2954 u8 pkt_type;
2955 u8 *sk_ptr;
2956 unsigned int sk_len;
2957 u16 seqno;
2958 u32 dump_size;
2959
2960 struct hci_event_hdr *event_hdr;
2961 struct hci_acl_hdr *acl_hdr;
2962 struct qca_dump_hdr *dump_hdr;
2963 struct btusb_data *btdata = hci_get_drvdata(hdev);
2964 struct usb_device *udev = btdata->udev;
2965
2966 pkt_type = hci_skb_pkt_type(skb);
2967 sk_ptr = skb->data;
2968 sk_len = skb->len;
2969
2970 if (pkt_type == HCI_ACLDATA_PKT) {
2971 acl_hdr = hci_acl_hdr(skb);
2972 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2973 return 0;
2974 sk_ptr += HCI_ACL_HDR_SIZE;
2975 sk_len -= HCI_ACL_HDR_SIZE;
2976 event_hdr = (struct hci_event_hdr *)sk_ptr;
2977 } else {
2978 event_hdr = hci_event_hdr(skb);
2979 }
2980
2981 if ((event_hdr->evt != HCI_VENDOR_PKT)
2982 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2983 return 0;
2984
2985 sk_ptr += HCI_EVENT_HDR_SIZE;
2986 sk_len -= HCI_EVENT_HDR_SIZE;
2987
2988 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2989 if ((sk_len < offsetof(struct qca_dump_hdr, data))
2990 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2991 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2992 return 0;
2993
2994 /*it is dump pkt now*/
2995 seqno = le16_to_cpu(dump_hdr->seqno);
2996 if (seqno == 0) {
2997 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2998 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2999 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3000 ret = -EILSEQ;
3001 bt_dev_err(hdev, "Invalid memdump size(%u)",
3002 dump_size);
3003 goto out;
3004 }
3005
3006 ret = hci_devcd_init(hdev, dump_size);
3007 if (ret < 0) {
3008 bt_dev_err(hdev, "memdump init error(%d)", ret);
3009 goto out;
3010 }
3011
3012 btdata->qca_dump.ram_dump_size = dump_size;
3013 btdata->qca_dump.ram_dump_seqno = 0;
3014 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3015 sk_len -= offsetof(struct qca_dump_hdr, data0);
3016
3017 usb_disable_autosuspend(udev);
3018 bt_dev_info(hdev, "%s memdump size(%u)\n",
3019 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3020 dump_size);
3021 } else {
3022 sk_ptr += offsetof(struct qca_dump_hdr, data);
3023 sk_len -= offsetof(struct qca_dump_hdr, data);
3024 }
3025
3026 if (!btdata->qca_dump.ram_dump_size) {
3027 ret = -EINVAL;
3028 bt_dev_err(hdev, "memdump is not active");
3029 goto out;
3030 }
3031
3032 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3033 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3034 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3035 bt_dev_err(hdev,
3036 "expected memdump seqno(%u) is not received(%u)\n",
3037 btdata->qca_dump.ram_dump_seqno, seqno);
3038 btdata->qca_dump.ram_dump_seqno = seqno;
3039 kfree_skb(skb);
3040 return ret;
3041 }
3042
3043 skb_pull(skb, skb->len - sk_len);
3044 hci_devcd_append(hdev, skb);
3045 btdata->qca_dump.ram_dump_seqno++;
3046 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3047 bt_dev_info(hdev,
3048 "memdump done: pkts(%u), total(%u)\n",
3049 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3050
3051 hci_devcd_complete(hdev);
3052 goto out;
3053 }
3054 return ret;
3055
3056out:
3057 if (btdata->qca_dump.ram_dump_size)
3058 usb_enable_autosuspend(udev);
3059 btdata->qca_dump.ram_dump_size = 0;
3060 btdata->qca_dump.ram_dump_seqno = 0;
3061 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3062
3063 if (ret < 0)
3064 kfree_skb(skb);
3065 return ret;
3066}
3067
3068static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3069{
3070 if (handle_dump_pkt_qca(hdev, skb))
3071 return 0;
3072 return hci_recv_frame(hdev, skb);
3073}
3074
3075static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3076{
3077 if (handle_dump_pkt_qca(hdev, skb))
3078 return 0;
3079 return hci_recv_frame(hdev, skb);
3080}
3081
3082
3083#define QCA_DFU_PACKET_LEN 4096
3084
3085#define QCA_GET_TARGET_VERSION 0x09
3086#define QCA_CHECK_STATUS 0x05
3087#define QCA_DFU_DOWNLOAD 0x01
3088
3089#define QCA_SYSCFG_UPDATED 0x40
3090#define QCA_PATCH_UPDATED 0x80
3091#define QCA_DFU_TIMEOUT 3000
3092#define QCA_FLAG_MULTI_NVM 0x80
3093#define QCA_BT_RESET_WAIT_MS 100
3094
3095#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3096#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3097
3098struct qca_version {
3099 __le32 rom_version;
3100 __le32 patch_version;
3101 __le32 ram_version;
3102 __u8 chip_id;
3103 __u8 platform_id;
3104 __le16 flag;
3105 __u8 reserved[4];
3106} __packed;
3107
3108struct qca_rampatch_version {
3109 __le16 rom_version_high;
3110 __le16 rom_version_low;
3111 __le16 patch_version;
3112} __packed;
3113
3114struct qca_device_info {
3115 u32 rom_version;
3116 u8 rampatch_hdr; /* length of header in rampatch */
3117 u8 nvm_hdr; /* length of header in NVM */
3118 u8 ver_offset; /* offset of version structure in rampatch */
3119};
3120
3121static const struct qca_device_info qca_devices_table[] = {
3122 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3123 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3124 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3125 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3126 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3127 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3128 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3129 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3130 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3131 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3132};
3133
3134static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3135 void *data, u16 size)
3136{
3137 int pipe, err;
3138 u8 *buf;
3139
3140 buf = kmalloc(size, GFP_KERNEL);
3141 if (!buf)
3142 return -ENOMEM;
3143
3144 /* Found some of USB hosts have IOT issues with ours so that we should
3145 * not wait until HCI layer is ready.
3146 */
3147 pipe = usb_rcvctrlpipe(udev, 0);
3148 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3149 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3150 if (err < 0) {
3151 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3152 goto done;
3153 }
3154
3155 memcpy(data, buf, size);
3156
3157done:
3158 kfree(buf);
3159
3160 return err;
3161}
3162
3163static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3164 const struct firmware *firmware,
3165 size_t hdr_size)
3166{
3167 struct btusb_data *btdata = hci_get_drvdata(hdev);
3168 struct usb_device *udev = btdata->udev;
3169 size_t count, size, sent = 0;
3170 int pipe, len, err;
3171 u8 *buf;
3172
3173 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3174 if (!buf)
3175 return -ENOMEM;
3176
3177 count = firmware->size;
3178
3179 size = min_t(size_t, count, hdr_size);
3180 memcpy(buf, firmware->data, size);
3181
3182 /* USB patches should go down to controller through USB path
3183 * because binary format fits to go down through USB channel.
3184 * USB control path is for patching headers and USB bulk is for
3185 * patch body.
3186 */
3187 pipe = usb_sndctrlpipe(udev, 0);
3188 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3189 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3190 if (err < 0) {
3191 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3192 goto done;
3193 }
3194
3195 sent += size;
3196 count -= size;
3197
3198 /* ep2 need time to switch from function acl to function dfu,
3199 * so we add 20ms delay here.
3200 */
3201 msleep(20);
3202
3203 while (count) {
3204 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3205
3206 memcpy(buf, firmware->data + sent, size);
3207
3208 pipe = usb_sndbulkpipe(udev, 0x02);
3209 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3210 QCA_DFU_TIMEOUT);
3211 if (err < 0) {
3212 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3213 sent, firmware->size, err);
3214 break;
3215 }
3216
3217 if (size != len) {
3218 bt_dev_err(hdev, "Failed to get bulk buffer");
3219 err = -EILSEQ;
3220 break;
3221 }
3222
3223 sent += size;
3224 count -= size;
3225 }
3226
3227done:
3228 kfree(buf);
3229 return err;
3230}
3231
3232static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3233 struct qca_version *ver,
3234 const struct qca_device_info *info)
3235{
3236 struct qca_rampatch_version *rver;
3237 const struct firmware *fw;
3238 u32 ver_rom, ver_patch, rver_rom;
3239 u16 rver_rom_low, rver_rom_high, rver_patch;
3240 char fwname[64];
3241 int err;
3242
3243 ver_rom = le32_to_cpu(ver->rom_version);
3244 ver_patch = le32_to_cpu(ver->patch_version);
3245
3246 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3247
3248 err = request_firmware(&fw, fwname, &hdev->dev);
3249 if (err) {
3250 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3251 fwname, err);
3252 return err;
3253 }
3254
3255 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3256
3257 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3258 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3259 rver_patch = le16_to_cpu(rver->patch_version);
3260
3261 if (ver_rom & ~0xffffU) {
3262 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3263 rver_rom = rver_rom_high << 16 | rver_rom_low;
3264 } else {
3265 rver_rom = rver_rom_low;
3266 }
3267
3268 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3269 "firmware rome 0x%x build 0x%x",
3270 rver_rom, rver_patch, ver_rom, ver_patch);
3271
3272 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3273 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3274 err = -EINVAL;
3275 goto done;
3276 }
3277
3278 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3279
3280done:
3281 release_firmware(fw);
3282
3283 return err;
3284}
3285
3286static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3287 const struct qca_version *ver)
3288{
3289 u32 rom_version = le32_to_cpu(ver->rom_version);
3290 u16 flag = le16_to_cpu(ver->flag);
3291
3292 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3293 /* The board_id should be split into two bytes
3294 * The 1st byte is chip ID, and the 2nd byte is platform ID
3295 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3296 * we have several platforms, and platform IDs are continuously added
3297 * Platform ID:
3298 * 0x00 is for Mobile
3299 * 0x01 is for X86
3300 * 0x02 is for Automotive
3301 * 0x03 is for Consumer electronic
3302 */
3303 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3304 const char *variant;
3305
3306 switch (le32_to_cpu(ver->ram_version)) {
3307 case WCN6855_2_0_RAM_VERSION_GF:
3308 case WCN6855_2_1_RAM_VERSION_GF:
3309 variant = "_gf";
3310 break;
3311 default:
3312 variant = "";
3313 break;
3314 }
3315
3316 if (board_id == 0) {
3317 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3318 rom_version, variant);
3319 } else {
3320 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3321 rom_version, variant, board_id);
3322 }
3323 } else {
3324 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3325 rom_version);
3326 }
3327
3328}
3329
3330static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3331 struct qca_version *ver,
3332 const struct qca_device_info *info)
3333{
3334 const struct firmware *fw;
3335 char fwname[64];
3336 int err;
3337
3338 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3339
3340 err = request_firmware(&fw, fwname, &hdev->dev);
3341 if (err) {
3342 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3343 fwname, err);
3344 return err;
3345 }
3346
3347 bt_dev_info(hdev, "using NVM file: %s", fwname);
3348
3349 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3350
3351 release_firmware(fw);
3352
3353 return err;
3354}
3355
3356/* identify the ROM version and check whether patches are needed */
3357static bool btusb_qca_need_patch(struct usb_device *udev)
3358{
3359 struct qca_version ver;
3360
3361 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3362 sizeof(ver)) < 0)
3363 return false;
3364 /* only low ROM versions need patches */
3365 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3366}
3367
3368static int btusb_setup_qca(struct hci_dev *hdev)
3369{
3370 struct btusb_data *btdata = hci_get_drvdata(hdev);
3371 struct usb_device *udev = btdata->udev;
3372 const struct qca_device_info *info = NULL;
3373 struct qca_version ver;
3374 u32 ver_rom;
3375 u8 status;
3376 int i, err;
3377
3378 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3379 sizeof(ver));
3380 if (err < 0)
3381 return err;
3382
3383 ver_rom = le32_to_cpu(ver.rom_version);
3384
3385 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3386 if (ver_rom == qca_devices_table[i].rom_version)
3387 info = &qca_devices_table[i];
3388 }
3389 if (!info) {
3390 /* If the rom_version is not matched in the qca_devices_table
3391 * and the high ROM version is not zero, we assume this chip no
3392 * need to load the rampatch and nvm.
3393 */
3394 if (ver_rom & ~0xffffU)
3395 return 0;
3396
3397 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3398 return -ENODEV;
3399 }
3400
3401 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3402 sizeof(status));
3403 if (err < 0)
3404 return err;
3405
3406 if (!(status & QCA_PATCH_UPDATED)) {
3407 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3408 if (err < 0)
3409 return err;
3410 }
3411
3412 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3413 sizeof(ver));
3414 if (err < 0)
3415 return err;
3416
3417 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3418 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3419
3420 if (!(status & QCA_SYSCFG_UPDATED)) {
3421 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3422 if (err < 0)
3423 return err;
3424
3425 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3426 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3427 * cause potential enable failure.
3428 */
3429 if (info->rom_version >= 0x00130201)
3430 msleep(QCA_BT_RESET_WAIT_MS);
3431 }
3432
3433 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3434 * work with the likes of HSP/HFP mSBC.
3435 */
3436 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3437
3438 return 0;
3439}
3440
3441static inline int __set_diag_interface(struct hci_dev *hdev)
3442{
3443 struct btusb_data *data = hci_get_drvdata(hdev);
3444 struct usb_interface *intf = data->diag;
3445 int i;
3446
3447 if (!data->diag)
3448 return -ENODEV;
3449
3450 data->diag_tx_ep = NULL;
3451 data->diag_rx_ep = NULL;
3452
3453 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3454 struct usb_endpoint_descriptor *ep_desc;
3455
3456 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3457
3458 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3459 data->diag_tx_ep = ep_desc;
3460 continue;
3461 }
3462
3463 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3464 data->diag_rx_ep = ep_desc;
3465 continue;
3466 }
3467 }
3468
3469 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3470 bt_dev_err(hdev, "invalid diagnostic descriptors");
3471 return -ENODEV;
3472 }
3473
3474 return 0;
3475}
3476
3477static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3478{
3479 struct btusb_data *data = hci_get_drvdata(hdev);
3480 struct sk_buff *skb;
3481 struct urb *urb;
3482 unsigned int pipe;
3483
3484 if (!data->diag_tx_ep)
3485 return ERR_PTR(-ENODEV);
3486
3487 urb = usb_alloc_urb(0, GFP_KERNEL);
3488 if (!urb)
3489 return ERR_PTR(-ENOMEM);
3490
3491 skb = bt_skb_alloc(2, GFP_KERNEL);
3492 if (!skb) {
3493 usb_free_urb(urb);
3494 return ERR_PTR(-ENOMEM);
3495 }
3496
3497 skb_put_u8(skb, 0xf0);
3498 skb_put_u8(skb, enable);
3499
3500 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3501
3502 usb_fill_bulk_urb(urb, data->udev, pipe,
3503 skb->data, skb->len, btusb_tx_complete, skb);
3504
3505 skb->dev = (void *)hdev;
3506
3507 return urb;
3508}
3509
3510static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3511{
3512 struct btusb_data *data = hci_get_drvdata(hdev);
3513 struct urb *urb;
3514
3515 if (!data->diag)
3516 return -ENODEV;
3517
3518 if (!test_bit(HCI_RUNNING, &hdev->flags))
3519 return -ENETDOWN;
3520
3521 urb = alloc_diag_urb(hdev, enable);
3522 if (IS_ERR(urb))
3523 return PTR_ERR(urb);
3524
3525 return submit_or_queue_tx_urb(hdev, urb);
3526}
3527
3528#ifdef CONFIG_PM
3529static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3530{
3531 struct btusb_data *data = priv;
3532
3533 pm_wakeup_event(&data->udev->dev, 0);
3534 pm_system_wakeup();
3535
3536 /* Disable only if not already disabled (keep it balanced) */
3537 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3538 disable_irq_nosync(irq);
3539 disable_irq_wake(irq);
3540 }
3541 return IRQ_HANDLED;
3542}
3543
3544static const struct of_device_id btusb_match_table[] = {
3545 { .compatible = "usb1286,204e" },
3546 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3547 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3548 { }
3549};
3550MODULE_DEVICE_TABLE(of, btusb_match_table);
3551
3552/* Use an oob wakeup pin? */
3553static int btusb_config_oob_wake(struct hci_dev *hdev)
3554{
3555 struct btusb_data *data = hci_get_drvdata(hdev);
3556 struct device *dev = &data->udev->dev;
3557 int irq, ret;
3558
3559 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3560
3561 if (!of_match_device(btusb_match_table, dev))
3562 return 0;
3563
3564 /* Move on if no IRQ specified */
3565 irq = of_irq_get_byname(dev->of_node, "wakeup");
3566 if (irq <= 0) {
3567 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3568 return 0;
3569 }
3570
3571 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3572 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3573 0, "OOB Wake-on-BT", data);
3574 if (ret) {
3575 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3576 return ret;
3577 }
3578
3579 ret = device_init_wakeup(dev, true);
3580 if (ret) {
3581 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3582 return ret;
3583 }
3584
3585 data->oob_wake_irq = irq;
3586 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3587 return 0;
3588}
3589#endif
3590
3591static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3592{
3593 if (dmi_check_system(btusb_needs_reset_resume_table))
3594 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3595}
3596
3597static bool btusb_wakeup(struct hci_dev *hdev)
3598{
3599 struct btusb_data *data = hci_get_drvdata(hdev);
3600
3601 return device_may_wakeup(&data->udev->dev);
3602}
3603
3604static int btusb_shutdown_qca(struct hci_dev *hdev)
3605{
3606 struct sk_buff *skb;
3607
3608 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3609 if (IS_ERR(skb)) {
3610 bt_dev_err(hdev, "HCI reset during shutdown failed");
3611 return PTR_ERR(skb);
3612 }
3613 kfree_skb(skb);
3614
3615 return 0;
3616}
3617
3618static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3619 size_t count, loff_t *ppos)
3620{
3621 struct btusb_data *data = file->private_data;
3622 char buf[3];
3623
3624 buf[0] = data->poll_sync ? 'Y' : 'N';
3625 buf[1] = '\n';
3626 buf[2] = '\0';
3627 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3628}
3629
3630static ssize_t force_poll_sync_write(struct file *file,
3631 const char __user *user_buf,
3632 size_t count, loff_t *ppos)
3633{
3634 struct btusb_data *data = file->private_data;
3635 bool enable;
3636 int err;
3637
3638 err = kstrtobool_from_user(user_buf, count, &enable);
3639 if (err)
3640 return err;
3641
3642 /* Only allow changes while the adapter is down */
3643 if (test_bit(HCI_UP, &data->hdev->flags))
3644 return -EPERM;
3645
3646 if (data->poll_sync == enable)
3647 return -EALREADY;
3648
3649 data->poll_sync = enable;
3650
3651 return count;
3652}
3653
3654static const struct file_operations force_poll_sync_fops = {
3655 .owner = THIS_MODULE,
3656 .open = simple_open,
3657 .read = force_poll_sync_read,
3658 .write = force_poll_sync_write,
3659 .llseek = default_llseek,
3660};
3661
3662static int btusb_probe(struct usb_interface *intf,
3663 const struct usb_device_id *id)
3664{
3665 struct usb_endpoint_descriptor *ep_desc;
3666 struct gpio_desc *reset_gpio;
3667 struct btusb_data *data;
3668 struct hci_dev *hdev;
3669 unsigned ifnum_base;
3670 int i, err, priv_size;
3671
3672 BT_DBG("intf %p id %p", intf, id);
3673
3674 if ((id->driver_info & BTUSB_IFNUM_2) &&
3675 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3676 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3677 return -ENODEV;
3678
3679 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3680
3681 if (!id->driver_info) {
3682 const struct usb_device_id *match;
3683
3684 match = usb_match_id(intf, quirks_table);
3685 if (match)
3686 id = match;
3687 }
3688
3689 if (id->driver_info == BTUSB_IGNORE)
3690 return -ENODEV;
3691
3692 if (id->driver_info & BTUSB_ATH3012) {
3693 struct usb_device *udev = interface_to_usbdev(intf);
3694
3695 /* Old firmware would otherwise let ath3k driver load
3696 * patch and sysconfig files
3697 */
3698 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3699 !btusb_qca_need_patch(udev))
3700 return -ENODEV;
3701 }
3702
3703 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3704 if (!data)
3705 return -ENOMEM;
3706
3707 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3708 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3709
3710 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3711 data->intr_ep = ep_desc;
3712 continue;
3713 }
3714
3715 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3716 data->bulk_tx_ep = ep_desc;
3717 continue;
3718 }
3719
3720 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3721 data->bulk_rx_ep = ep_desc;
3722 continue;
3723 }
3724 }
3725
3726 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3727 return -ENODEV;
3728
3729 if (id->driver_info & BTUSB_AMP) {
3730 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3731 data->cmdreq = 0x2b;
3732 } else {
3733 data->cmdreq_type = USB_TYPE_CLASS;
3734 data->cmdreq = 0x00;
3735 }
3736
3737 data->udev = interface_to_usbdev(intf);
3738 data->intf = intf;
3739
3740 INIT_WORK(&data->work, btusb_work);
3741 INIT_WORK(&data->waker, btusb_waker);
3742 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3743
3744 skb_queue_head_init(&data->acl_q);
3745
3746 init_usb_anchor(&data->deferred);
3747 init_usb_anchor(&data->tx_anchor);
3748 spin_lock_init(&data->txlock);
3749
3750 init_usb_anchor(&data->intr_anchor);
3751 init_usb_anchor(&data->bulk_anchor);
3752 init_usb_anchor(&data->isoc_anchor);
3753 init_usb_anchor(&data->diag_anchor);
3754 init_usb_anchor(&data->ctrl_anchor);
3755 spin_lock_init(&data->rxlock);
3756
3757 priv_size = 0;
3758
3759 data->recv_event = hci_recv_frame;
3760 data->recv_bulk = btusb_recv_bulk;
3761
3762 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3763 /* Allocate extra space for Intel device */
3764 priv_size += sizeof(struct btintel_data);
3765
3766 /* Override the rx handlers */
3767 data->recv_event = btintel_recv_event;
3768 data->recv_bulk = btusb_recv_bulk_intel;
3769 } else if (id->driver_info & BTUSB_REALTEK) {
3770 /* Allocate extra space for Realtek device */
3771 priv_size += sizeof(struct btrealtek_data);
3772
3773 data->recv_event = btusb_recv_event_realtek;
3774 } else if (id->driver_info & BTUSB_MEDIATEK) {
3775 /* Allocate extra space for Mediatek device */
3776 priv_size += sizeof(struct btmtk_data);
3777 }
3778
3779 data->recv_acl = hci_recv_frame;
3780
3781 hdev = hci_alloc_dev_priv(priv_size);
3782 if (!hdev)
3783 return -ENOMEM;
3784
3785 hdev->bus = HCI_USB;
3786 hci_set_drvdata(hdev, data);
3787
3788 data->hdev = hdev;
3789
3790 SET_HCIDEV_DEV(hdev, &intf->dev);
3791
3792 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3793 GPIOD_OUT_LOW);
3794 if (IS_ERR(reset_gpio)) {
3795 err = PTR_ERR(reset_gpio);
3796 goto out_free_dev;
3797 } else if (reset_gpio) {
3798 data->reset_gpio = reset_gpio;
3799 }
3800
3801 hdev->open = btusb_open;
3802 hdev->close = btusb_close;
3803 hdev->flush = btusb_flush;
3804 hdev->send = btusb_send_frame;
3805 hdev->notify = btusb_notify;
3806 hdev->wakeup = btusb_wakeup;
3807
3808#ifdef CONFIG_PM
3809 err = btusb_config_oob_wake(hdev);
3810 if (err)
3811 goto out_free_dev;
3812
3813 /* Marvell devices may need a specific chip configuration */
3814 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3815 err = marvell_config_oob_wake(hdev);
3816 if (err)
3817 goto out_free_dev;
3818 }
3819#endif
3820 if (id->driver_info & BTUSB_CW6622)
3821 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3822
3823 if (id->driver_info & BTUSB_BCM2045)
3824 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3825
3826 if (id->driver_info & BTUSB_BCM92035)
3827 hdev->setup = btusb_setup_bcm92035;
3828
3829 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3830 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3831 hdev->manufacturer = 15;
3832 hdev->setup = btbcm_setup_patchram;
3833 hdev->set_diag = btusb_bcm_set_diag;
3834 hdev->set_bdaddr = btbcm_set_bdaddr;
3835
3836 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3837 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3838 }
3839
3840 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3841 (id->driver_info & BTUSB_BCM_APPLE)) {
3842 hdev->manufacturer = 15;
3843 hdev->setup = btbcm_setup_apple;
3844 hdev->set_diag = btusb_bcm_set_diag;
3845
3846 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3847 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3848 }
3849
3850 /* Combined Intel Device setup to support multiple setup routine */
3851 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3852 err = btintel_configure_setup(hdev, btusb_driver.name);
3853 if (err)
3854 goto out_free_dev;
3855
3856 /* Transport specific configuration */
3857 hdev->send = btusb_send_frame_intel;
3858 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3859
3860 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3861 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3862
3863 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3864 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3865
3866 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3867 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3868 }
3869
3870 if (id->driver_info & BTUSB_MARVELL)
3871 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3872
3873 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3874 (id->driver_info & BTUSB_MEDIATEK)) {
3875 hdev->setup = btusb_mtk_setup;
3876 hdev->shutdown = btusb_mtk_shutdown;
3877 hdev->manufacturer = 70;
3878 hdev->cmd_timeout = btmtk_reset_sync;
3879 hdev->set_bdaddr = btmtk_set_bdaddr;
3880 hdev->send = btusb_send_frame_mtk;
3881 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3882 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3883 data->recv_acl = btmtk_usb_recv_acl;
3884 data->suspend = btmtk_usb_suspend;
3885 data->resume = btmtk_usb_resume;
3886 data->disconnect = btusb_mtk_disconnect;
3887 }
3888
3889 if (id->driver_info & BTUSB_SWAVE) {
3890 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3891 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3892 }
3893
3894 if (id->driver_info & BTUSB_INTEL_BOOT) {
3895 hdev->manufacturer = 2;
3896 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3897 }
3898
3899 if (id->driver_info & BTUSB_ATH3012) {
3900 data->setup_on_usb = btusb_setup_qca;
3901 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3902 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3903 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3904 }
3905
3906 if (id->driver_info & BTUSB_QCA_ROME) {
3907 data->setup_on_usb = btusb_setup_qca;
3908 hdev->shutdown = btusb_shutdown_qca;
3909 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3910 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3911 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3912 btusb_check_needs_reset_resume(intf);
3913 }
3914
3915 if (id->driver_info & BTUSB_QCA_WCN6855) {
3916 data->qca_dump.id_vendor = id->idVendor;
3917 data->qca_dump.id_product = id->idProduct;
3918 data->recv_event = btusb_recv_evt_qca;
3919 data->recv_acl = btusb_recv_acl_qca;
3920 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3921 data->setup_on_usb = btusb_setup_qca;
3922 hdev->shutdown = btusb_shutdown_qca;
3923 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3924 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3925 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3926 hci_set_msft_opcode(hdev, 0xFD70);
3927 }
3928
3929 if (id->driver_info & BTUSB_AMP) {
3930 /* AMP controllers do not support SCO packets */
3931 data->isoc = NULL;
3932 } else {
3933 /* Interface orders are hardcoded in the specification */
3934 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3935 data->isoc_ifnum = ifnum_base + 1;
3936 }
3937
3938 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3939 (id->driver_info & BTUSB_REALTEK)) {
3940 btrtl_set_driver_name(hdev, btusb_driver.name);
3941 hdev->setup = btusb_setup_realtek;
3942 hdev->shutdown = btrtl_shutdown_realtek;
3943 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3944 hdev->hw_error = btusb_rtl_hw_error;
3945
3946 /* Realtek devices need to set remote wakeup on auto-suspend */
3947 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3948 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3949 }
3950
3951 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3952 /* Support is advertised, but not implemented */
3953 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3954 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3955 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3956 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3957 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3958 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
3959 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
3960 }
3961
3962 if (!reset)
3963 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3964
3965 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3966 if (!disable_scofix)
3967 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3968 }
3969
3970 if (id->driver_info & BTUSB_BROKEN_ISOC)
3971 data->isoc = NULL;
3972
3973 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3974 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3975
3976 if (id->driver_info & BTUSB_INVALID_LE_STATES)
3977 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
3978
3979 if (id->driver_info & BTUSB_DIGIANSWER) {
3980 data->cmdreq_type = USB_TYPE_VENDOR;
3981 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3982 }
3983
3984 if (id->driver_info & BTUSB_CSR) {
3985 struct usb_device *udev = data->udev;
3986 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3987
3988 /* Old firmware would otherwise execute USB reset */
3989 if (bcdDevice < 0x117)
3990 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3991
3992 /* This must be set first in case we disable it for fakes */
3993 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3994
3995 /* Fake CSR devices with broken commands */
3996 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
3997 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3998 hdev->setup = btusb_setup_csr;
3999 }
4000
4001 if (id->driver_info & BTUSB_SNIFFER) {
4002 struct usb_device *udev = data->udev;
4003
4004 /* New sniffer firmware has crippled HCI interface */
4005 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4006 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4007 }
4008
4009 if (id->driver_info & BTUSB_INTEL_BOOT) {
4010 /* A bug in the bootloader causes that interrupt interface is
4011 * only enabled after receiving SetInterface(0, AltSetting=0).
4012 */
4013 err = usb_set_interface(data->udev, 0, 0);
4014 if (err < 0) {
4015 BT_ERR("failed to set interface 0, alt 0 %d", err);
4016 goto out_free_dev;
4017 }
4018 }
4019
4020 if (data->isoc) {
4021 err = usb_driver_claim_interface(&btusb_driver,
4022 data->isoc, data);
4023 if (err < 0)
4024 goto out_free_dev;
4025 }
4026
4027 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4028 if (!usb_driver_claim_interface(&btusb_driver,
4029 data->diag, data))
4030 __set_diag_interface(hdev);
4031 else
4032 data->diag = NULL;
4033 }
4034
4035 if (enable_autosuspend)
4036 usb_enable_autosuspend(data->udev);
4037
4038 data->poll_sync = enable_poll_sync;
4039
4040 err = hci_register_dev(hdev);
4041 if (err < 0)
4042 goto out_free_dev;
4043
4044 usb_set_intfdata(intf, data);
4045
4046 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4047 &force_poll_sync_fops);
4048
4049 return 0;
4050
4051out_free_dev:
4052 if (data->reset_gpio)
4053 gpiod_put(data->reset_gpio);
4054 hci_free_dev(hdev);
4055 return err;
4056}
4057
4058static void btusb_disconnect(struct usb_interface *intf)
4059{
4060 struct btusb_data *data = usb_get_intfdata(intf);
4061 struct hci_dev *hdev;
4062
4063 BT_DBG("intf %p", intf);
4064
4065 if (!data)
4066 return;
4067
4068 hdev = data->hdev;
4069 usb_set_intfdata(data->intf, NULL);
4070
4071 if (data->isoc)
4072 usb_set_intfdata(data->isoc, NULL);
4073
4074 if (data->diag)
4075 usb_set_intfdata(data->diag, NULL);
4076
4077 if (data->disconnect)
4078 data->disconnect(hdev);
4079
4080 hci_unregister_dev(hdev);
4081
4082 if (intf == data->intf) {
4083 if (data->isoc)
4084 usb_driver_release_interface(&btusb_driver, data->isoc);
4085 if (data->diag)
4086 usb_driver_release_interface(&btusb_driver, data->diag);
4087 } else if (intf == data->isoc) {
4088 if (data->diag)
4089 usb_driver_release_interface(&btusb_driver, data->diag);
4090 usb_driver_release_interface(&btusb_driver, data->intf);
4091 } else if (intf == data->diag) {
4092 usb_driver_release_interface(&btusb_driver, data->intf);
4093 if (data->isoc)
4094 usb_driver_release_interface(&btusb_driver, data->isoc);
4095 }
4096
4097 if (data->oob_wake_irq)
4098 device_init_wakeup(&data->udev->dev, false);
4099
4100 if (data->reset_gpio)
4101 gpiod_put(data->reset_gpio);
4102
4103 hci_free_dev(hdev);
4104}
4105
4106#ifdef CONFIG_PM
4107static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4108{
4109 struct btusb_data *data = usb_get_intfdata(intf);
4110
4111 BT_DBG("intf %p", intf);
4112
4113 /* Don't auto-suspend if there are connections; external suspend calls
4114 * shall never fail.
4115 */
4116 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4117 return -EBUSY;
4118
4119 if (data->suspend_count++)
4120 return 0;
4121
4122 spin_lock_irq(&data->txlock);
4123 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4124 set_bit(BTUSB_SUSPENDING, &data->flags);
4125 spin_unlock_irq(&data->txlock);
4126 } else {
4127 spin_unlock_irq(&data->txlock);
4128 data->suspend_count--;
4129 return -EBUSY;
4130 }
4131
4132 cancel_work_sync(&data->work);
4133
4134 if (data->suspend)
4135 data->suspend(data->hdev);
4136
4137 btusb_stop_traffic(data);
4138 usb_kill_anchored_urbs(&data->tx_anchor);
4139
4140 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4141 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4142 enable_irq_wake(data->oob_wake_irq);
4143 enable_irq(data->oob_wake_irq);
4144 }
4145
4146 /* For global suspend, Realtek devices lose the loaded fw
4147 * in them. But for autosuspend, firmware should remain.
4148 * Actually, it depends on whether the usb host sends
4149 * set feature (enable wakeup) or not.
4150 */
4151 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4152 if (PMSG_IS_AUTO(message) &&
4153 device_can_wakeup(&data->udev->dev))
4154 data->udev->do_remote_wakeup = 1;
4155 else if (!PMSG_IS_AUTO(message) &&
4156 !device_may_wakeup(&data->udev->dev)) {
4157 data->udev->do_remote_wakeup = 0;
4158 data->udev->reset_resume = 1;
4159 }
4160 }
4161
4162 return 0;
4163}
4164
4165static void play_deferred(struct btusb_data *data)
4166{
4167 struct urb *urb;
4168 int err;
4169
4170 while ((urb = usb_get_from_anchor(&data->deferred))) {
4171 usb_anchor_urb(urb, &data->tx_anchor);
4172
4173 err = usb_submit_urb(urb, GFP_ATOMIC);
4174 if (err < 0) {
4175 if (err != -EPERM && err != -ENODEV)
4176 BT_ERR("%s urb %p submission failed (%d)",
4177 data->hdev->name, urb, -err);
4178 kfree(urb->setup_packet);
4179 usb_unanchor_urb(urb);
4180 usb_free_urb(urb);
4181 break;
4182 }
4183
4184 data->tx_in_flight++;
4185 usb_free_urb(urb);
4186 }
4187
4188 /* Cleanup the rest deferred urbs. */
4189 while ((urb = usb_get_from_anchor(&data->deferred))) {
4190 kfree(urb->setup_packet);
4191 usb_free_urb(urb);
4192 }
4193}
4194
4195static int btusb_resume(struct usb_interface *intf)
4196{
4197 struct btusb_data *data = usb_get_intfdata(intf);
4198 struct hci_dev *hdev = data->hdev;
4199 int err = 0;
4200
4201 BT_DBG("intf %p", intf);
4202
4203 if (--data->suspend_count)
4204 return 0;
4205
4206 /* Disable only if not already disabled (keep it balanced) */
4207 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4208 disable_irq(data->oob_wake_irq);
4209 disable_irq_wake(data->oob_wake_irq);
4210 }
4211
4212 if (!test_bit(HCI_RUNNING, &hdev->flags))
4213 goto done;
4214
4215 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4216 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4217 if (err < 0) {
4218 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4219 goto failed;
4220 }
4221 }
4222
4223 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4224 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4225 if (err < 0) {
4226 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4227 goto failed;
4228 }
4229
4230 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4231 }
4232
4233 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4234 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4235 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4236 else
4237 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4238 }
4239
4240 if (data->resume)
4241 data->resume(hdev);
4242
4243 spin_lock_irq(&data->txlock);
4244 play_deferred(data);
4245 clear_bit(BTUSB_SUSPENDING, &data->flags);
4246 spin_unlock_irq(&data->txlock);
4247 schedule_work(&data->work);
4248
4249 return 0;
4250
4251failed:
4252 usb_scuttle_anchored_urbs(&data->deferred);
4253done:
4254 spin_lock_irq(&data->txlock);
4255 clear_bit(BTUSB_SUSPENDING, &data->flags);
4256 spin_unlock_irq(&data->txlock);
4257
4258 return err;
4259}
4260#endif
4261
4262#ifdef CONFIG_DEV_COREDUMP
4263static void btusb_coredump(struct device *dev)
4264{
4265 struct btusb_data *data = dev_get_drvdata(dev);
4266 struct hci_dev *hdev = data->hdev;
4267
4268 if (hdev->dump.coredump)
4269 hdev->dump.coredump(hdev);
4270}
4271#endif
4272
4273static struct usb_driver btusb_driver = {
4274 .name = "btusb",
4275 .probe = btusb_probe,
4276 .disconnect = btusb_disconnect,
4277#ifdef CONFIG_PM
4278 .suspend = btusb_suspend,
4279 .resume = btusb_resume,
4280#endif
4281 .id_table = btusb_table,
4282 .supports_autosuspend = 1,
4283 .disable_hub_initiated_lpm = 1,
4284
4285#ifdef CONFIG_DEV_COREDUMP
4286 .driver = {
4287 .coredump = btusb_coredump,
4288 },
4289#endif
4290};
4291
4292module_usb_driver(btusb_driver);
4293
4294module_param(disable_scofix, bool, 0644);
4295MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4296
4297module_param(force_scofix, bool, 0644);
4298MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4299
4300module_param(enable_autosuspend, bool, 0644);
4301MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4302
4303module_param(reset, bool, 0644);
4304MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4305
4306MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4307MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4308MODULE_VERSION(VERSION);
4309MODULE_LICENSE("GPL");