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#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 BTUSB_VALID_LE_STATES },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH |
305 BTUSB_VALID_LE_STATES },
306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH |
308 BTUSB_VALID_LE_STATES },
309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH |
311 BTUSB_VALID_LE_STATES },
312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH |
314 BTUSB_VALID_LE_STATES },
315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH |
317 BTUSB_VALID_LE_STATES },
318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH |
320 BTUSB_VALID_LE_STATES },
321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH |
323 BTUSB_VALID_LE_STATES },
324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH |
326 BTUSB_VALID_LE_STATES },
327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH |
329 BTUSB_VALID_LE_STATES },
330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH |
332 BTUSB_VALID_LE_STATES },
333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH |
335 BTUSB_VALID_LE_STATES },
336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH |
338 BTUSB_VALID_LE_STATES },
339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH |
341 BTUSB_VALID_LE_STATES },
342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH |
344 BTUSB_VALID_LE_STATES },
345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH |
347 BTUSB_VALID_LE_STATES },
348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH |
350 BTUSB_VALID_LE_STATES },
351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH |
353 BTUSB_VALID_LE_STATES },
354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH |
359 BTUSB_VALID_LE_STATES },
360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH |
362 BTUSB_VALID_LE_STATES },
363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH |
365 BTUSB_VALID_LE_STATES },
366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH |
368 BTUSB_VALID_LE_STATES },
369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH |
371 BTUSB_VALID_LE_STATES },
372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH |
374 BTUSB_VALID_LE_STATES },
375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH |
377 BTUSB_VALID_LE_STATES },
378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH |
383 BTUSB_VALID_LE_STATES },
384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH |
386 BTUSB_VALID_LE_STATES },
387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
388 BTUSB_WIDEBAND_SPEECH |
389 BTUSB_VALID_LE_STATES },
390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH |
392 BTUSB_VALID_LE_STATES },
393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH |
395 BTUSB_VALID_LE_STATES },
396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH |
398 BTUSB_VALID_LE_STATES },
399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH |
401 BTUSB_VALID_LE_STATES },
402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
405
406 /* QCA WCN785x chipset */
407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
410
411 /* Broadcom BCM2035 */
412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* Broadcom BCM2045 */
417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* IBM/Lenovo ThinkPad with Broadcom chip */
421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* HP laptop with Broadcom chip */
425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
426
427 /* Dell laptop with Broadcom chip */
428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
429
430 /* Dell Wireless 370 and 410 devices */
431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Belkin F8T012 and F8T013 devices */
435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Asus WL-BTD202 device */
439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
440
441 /* Kensington Bluetooth USB adapter */
442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
443
444 /* RTX Telecom based adapters with buggy SCO support */
445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
447
448 /* CONWISE Technology based adapters with buggy SCO support */
449 { USB_DEVICE(0x0e5e, 0x6622),
450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
451
452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
454
455 /* Digianswer devices */
456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
458
459 /* CSR BlueCore Bluetooth Sniffer */
460 { USB_DEVICE(0x0a12, 0x0002),
461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
462
463 /* Frontline ComProbe Bluetooth Sniffer */
464 { USB_DEVICE(0x16d3, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Marvell Bluetooth devices */
468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
471
472 /* Intel Bluetooth devices */
473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
481 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
482 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
483 BTUSB_INTEL_NO_WBS_SUPPORT |
484 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
486 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
487 BTUSB_INTEL_NO_WBS_SUPPORT |
488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
489 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
490 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
493
494 /* Other Intel Bluetooth devices */
495 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
496 .driver_info = BTUSB_IGNORE },
497
498 /* Realtek 8821CE Bluetooth devices */
499 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8822CE Bluetooth devices */
503 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507
508 /* Realtek 8822CU Bluetooth devices */
509 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511
512 /* Realtek 8852AE Bluetooth devices */
513 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527
528 /* Realtek 8852CE Bluetooth devices */
529 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
540 BTUSB_WIDEBAND_SPEECH },
541
542 /* Realtek 8852BE Bluetooth devices */
543 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
544 BTUSB_WIDEBAND_SPEECH },
545 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
554 BTUSB_WIDEBAND_SPEECH },
555
556 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
557 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
558 BTUSB_WIDEBAND_SPEECH },
559 /* Realtek Bluetooth devices */
560 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
561 .driver_info = BTUSB_REALTEK },
562
563 /* MediaTek Bluetooth devices */
564 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
565 .driver_info = BTUSB_MEDIATEK |
566 BTUSB_WIDEBAND_SPEECH |
567 BTUSB_VALID_LE_STATES },
568
569 /* Additional MediaTek MT7615E Bluetooth devices */
570 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
571
572 /* Additional MediaTek MT7663 Bluetooth devices */
573 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
574 BTUSB_WIDEBAND_SPEECH |
575 BTUSB_VALID_LE_STATES },
576 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
577 BTUSB_WIDEBAND_SPEECH |
578 BTUSB_VALID_LE_STATES },
579
580 /* Additional MediaTek MT7668 Bluetooth devices */
581 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH |
583 BTUSB_VALID_LE_STATES },
584
585 /* Additional MediaTek MT7921 Bluetooth devices */
586 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
587 BTUSB_WIDEBAND_SPEECH |
588 BTUSB_VALID_LE_STATES },
589 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
590 BTUSB_WIDEBAND_SPEECH |
591 BTUSB_VALID_LE_STATES },
592 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
593 BTUSB_WIDEBAND_SPEECH |
594 BTUSB_VALID_LE_STATES },
595 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH |
597 BTUSB_VALID_LE_STATES },
598 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
599 BTUSB_WIDEBAND_SPEECH |
600 BTUSB_VALID_LE_STATES },
601 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH |
603 BTUSB_VALID_LE_STATES },
604 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
605 BTUSB_WIDEBAND_SPEECH |
606 BTUSB_VALID_LE_STATES },
607 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH |
609 BTUSB_VALID_LE_STATES },
610 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
611 BTUSB_WIDEBAND_SPEECH |
612 BTUSB_VALID_LE_STATES },
613 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH |
615 BTUSB_VALID_LE_STATES },
616 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
617 BTUSB_WIDEBAND_SPEECH |
618 BTUSB_VALID_LE_STATES },
619
620 /* MediaTek MT7922A Bluetooth devices */
621 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH |
623 BTUSB_VALID_LE_STATES },
624 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
625 BTUSB_WIDEBAND_SPEECH |
626 BTUSB_VALID_LE_STATES },
627 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH |
629 BTUSB_VALID_LE_STATES },
630 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
631 BTUSB_WIDEBAND_SPEECH |
632 BTUSB_VALID_LE_STATES },
633 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH |
635 BTUSB_VALID_LE_STATES },
636 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
637 BTUSB_WIDEBAND_SPEECH |
638 BTUSB_VALID_LE_STATES },
639 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH |
641 BTUSB_VALID_LE_STATES },
642 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
643 BTUSB_WIDEBAND_SPEECH |
644 BTUSB_VALID_LE_STATES },
645 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH |
647 BTUSB_VALID_LE_STATES },
648 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
649 BTUSB_WIDEBAND_SPEECH |
650 BTUSB_VALID_LE_STATES },
651 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
652 BTUSB_WIDEBAND_SPEECH |
653 BTUSB_VALID_LE_STATES },
654 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
655 BTUSB_WIDEBAND_SPEECH |
656 BTUSB_VALID_LE_STATES },
657 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
658 BTUSB_WIDEBAND_SPEECH |
659 BTUSB_VALID_LE_STATES },
660
661 /* Additional MediaTek MT7925 Bluetooth devices */
662 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
663 BTUSB_WIDEBAND_SPEECH |
664 BTUSB_VALID_LE_STATES },
665
666 /* Additional Realtek 8723AE Bluetooth devices */
667 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
668 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
669
670 /* Additional Realtek 8723BE Bluetooth devices */
671 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
672 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
673 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
674 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
675 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
676 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
677 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
678
679 /* Additional Realtek 8723BU Bluetooth devices */
680 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
681
682 /* Additional Realtek 8723DE Bluetooth devices */
683 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
684 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
685
686 /* Additional Realtek 8761BUV Bluetooth devices */
687 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
688 BTUSB_WIDEBAND_SPEECH },
689 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
690 BTUSB_WIDEBAND_SPEECH },
691 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
692 BTUSB_WIDEBAND_SPEECH },
693 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
694 BTUSB_WIDEBAND_SPEECH },
695 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
696 BTUSB_WIDEBAND_SPEECH },
697 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
698 BTUSB_WIDEBAND_SPEECH },
699 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
700 BTUSB_WIDEBAND_SPEECH },
701
702 /* Additional Realtek 8821AE Bluetooth devices */
703 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
704 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
705 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
706 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
707 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
708
709 /* Additional Realtek 8822BE Bluetooth devices */
710 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
711 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
712
713 /* Additional Realtek 8822CE Bluetooth devices */
714 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
725 BTUSB_WIDEBAND_SPEECH },
726 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
727 BTUSB_WIDEBAND_SPEECH },
728 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
735 BTUSB_WIDEBAND_SPEECH },
736
737 /* Actions Semiconductor ATS2851 based devices */
738 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
739
740 /* Silicon Wave based devices */
741 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
742
743 { } /* Terminating entry */
744};
745
746/* The Bluetooth USB module build into some devices needs to be reset on resume,
747 * this is a problem with the platform (likely shutting off all power) not with
748 * the module itself. So we use a DMI list to match known broken platforms.
749 */
750static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
751 {
752 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
753 .matches = {
754 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
755 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
756 },
757 },
758 {
759 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
760 .matches = {
761 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
762 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
763 },
764 },
765 {
766 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
767 .matches = {
768 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
769 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
770 },
771 },
772 {}
773};
774
775struct qca_dump_info {
776 /* fields for dump collection */
777 u16 id_vendor;
778 u16 id_product;
779 u32 fw_version;
780 u32 controller_id;
781 u32 ram_dump_size;
782 u16 ram_dump_seqno;
783};
784
785#define BTUSB_MAX_ISOC_FRAMES 10
786
787#define BTUSB_INTR_RUNNING 0
788#define BTUSB_BULK_RUNNING 1
789#define BTUSB_ISOC_RUNNING 2
790#define BTUSB_SUSPENDING 3
791#define BTUSB_DID_ISO_RESUME 4
792#define BTUSB_BOOTLOADER 5
793#define BTUSB_DOWNLOADING 6
794#define BTUSB_FIRMWARE_LOADED 7
795#define BTUSB_FIRMWARE_FAILED 8
796#define BTUSB_BOOTING 9
797#define BTUSB_DIAG_RUNNING 10
798#define BTUSB_OOB_WAKE_ENABLED 11
799#define BTUSB_HW_RESET_ACTIVE 12
800#define BTUSB_TX_WAIT_VND_EVT 13
801#define BTUSB_WAKEUP_AUTOSUSPEND 14
802#define BTUSB_USE_ALT3_FOR_WBS 15
803#define BTUSB_ALT6_CONTINUOUS_TX 16
804#define BTUSB_HW_SSR_ACTIVE 17
805
806struct btusb_data {
807 struct hci_dev *hdev;
808 struct usb_device *udev;
809 struct usb_interface *intf;
810 struct usb_interface *isoc;
811 struct usb_interface *diag;
812 unsigned isoc_ifnum;
813
814 unsigned long flags;
815
816 bool poll_sync;
817 int intr_interval;
818 struct work_struct work;
819 struct work_struct waker;
820 struct delayed_work rx_work;
821
822 struct sk_buff_head acl_q;
823
824 struct usb_anchor deferred;
825 struct usb_anchor tx_anchor;
826 int tx_in_flight;
827 spinlock_t txlock;
828
829 struct usb_anchor intr_anchor;
830 struct usb_anchor bulk_anchor;
831 struct usb_anchor isoc_anchor;
832 struct usb_anchor diag_anchor;
833 struct usb_anchor ctrl_anchor;
834 spinlock_t rxlock;
835
836 struct sk_buff *evt_skb;
837 struct sk_buff *acl_skb;
838 struct sk_buff *sco_skb;
839
840 struct usb_endpoint_descriptor *intr_ep;
841 struct usb_endpoint_descriptor *bulk_tx_ep;
842 struct usb_endpoint_descriptor *bulk_rx_ep;
843 struct usb_endpoint_descriptor *isoc_tx_ep;
844 struct usb_endpoint_descriptor *isoc_rx_ep;
845 struct usb_endpoint_descriptor *diag_tx_ep;
846 struct usb_endpoint_descriptor *diag_rx_ep;
847
848 struct gpio_desc *reset_gpio;
849
850 __u8 cmdreq_type;
851 __u8 cmdreq;
852
853 unsigned int sco_num;
854 unsigned int air_mode;
855 bool usb_alt6_packet_flow;
856 int isoc_altsetting;
857 int suspend_count;
858
859 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
860 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
861 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
862
863 int (*setup_on_usb)(struct hci_dev *hdev);
864
865 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
866 unsigned cmd_timeout_cnt;
867
868 struct qca_dump_info qca_dump;
869};
870
871static void btusb_reset(struct hci_dev *hdev)
872{
873 struct btusb_data *data;
874 int err;
875
876 if (hdev->reset) {
877 hdev->reset(hdev);
878 return;
879 }
880
881 data = hci_get_drvdata(hdev);
882 /* This is not an unbalanced PM reference since the device will reset */
883 err = usb_autopm_get_interface(intf: data->intf);
884 if (err) {
885 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
886 return;
887 }
888
889 bt_dev_err(hdev, "Resetting usb device.");
890 usb_queue_reset_device(dev: data->intf);
891}
892
893static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
894{
895 struct btusb_data *data = hci_get_drvdata(hdev);
896 struct gpio_desc *reset_gpio = data->reset_gpio;
897 struct btintel_data *intel_data = hci_get_priv(hdev);
898
899 if (++data->cmd_timeout_cnt < 5)
900 return;
901
902 if (intel_data->acpi_reset_method) {
903 if (test_and_set_bit(nr: INTEL_ACPI_RESET_ACTIVE, addr: intel_data->flags)) {
904 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
905 return;
906 }
907
908 bt_dev_err(hdev, "Initiating acpi reset method");
909 /* If ACPI reset method fails, lets try with legacy GPIO
910 * toggling
911 */
912 if (!intel_data->acpi_reset_method(hdev)) {
913 return;
914 }
915 }
916
917 if (!reset_gpio) {
918 btusb_reset(hdev);
919 return;
920 }
921
922 /*
923 * Toggle the hard reset line if the platform provides one. The reset
924 * is going to yank the device off the USB and then replug. So doing
925 * once is enough. The cleanup is handled correctly on the way out
926 * (standard USB disconnect), and the new device is detected cleanly
927 * and bound to the driver again like it should be.
928 */
929 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, addr: &data->flags)) {
930 bt_dev_err(hdev, "last reset failed? Not resetting again");
931 return;
932 }
933
934 bt_dev_err(hdev, "Initiating HW reset via gpio");
935 gpiod_set_value_cansleep(desc: reset_gpio, value: 1);
936 msleep(msecs: 100);
937 gpiod_set_value_cansleep(desc: reset_gpio, value: 0);
938}
939
940#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
941#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
942#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
943
944#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
945
946struct rtk_dev_coredump_hdr {
947 u8 type;
948 u8 code;
949 u8 reserved[2];
950} __packed;
951
952static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
953 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
954{
955 struct sk_buff *skb;
956
957 skb = alloc_skb(size: len + sizeof(*hdr), GFP_ATOMIC);
958 if (!skb)
959 return;
960
961 skb_put_data(skb, data: hdr, len: sizeof(*hdr));
962 if (len)
963 skb_put_data(skb, data: buf, len);
964
965 if (!hci_devcd_init(hdev, dump_size: skb->len)) {
966 hci_devcd_append(hdev, skb);
967 hci_devcd_complete(hdev);
968 } else {
969 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
970 kfree_skb(skb);
971 }
972}
973
974static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
975{
976 struct btusb_data *data = hci_get_drvdata(hdev);
977 struct gpio_desc *reset_gpio = data->reset_gpio;
978 struct rtk_dev_coredump_hdr hdr = {
979 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
980 };
981
982 btusb_rtl_alloc_devcoredump(hdev, hdr: &hdr, NULL, len: 0);
983
984 if (++data->cmd_timeout_cnt < 5)
985 return;
986
987 if (!reset_gpio) {
988 btusb_reset(hdev);
989 return;
990 }
991
992 /* Toggle the hard reset line. The Realtek device is going to
993 * yank itself off the USB and then replug. The cleanup is handled
994 * correctly on the way out (standard USB disconnect), and the new
995 * device is detected cleanly and bound to the driver again like
996 * it should be.
997 */
998 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, addr: &data->flags)) {
999 bt_dev_err(hdev, "last reset failed? Not resetting again");
1000 return;
1001 }
1002
1003 bt_dev_err(hdev, "Reset Realtek device via gpio");
1004 gpiod_set_value_cansleep(desc: reset_gpio, value: 1);
1005 msleep(msecs: 200);
1006 gpiod_set_value_cansleep(desc: reset_gpio, value: 0);
1007}
1008
1009static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1010{
1011 struct rtk_dev_coredump_hdr hdr = {
1012 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1013 .code = code,
1014 };
1015
1016 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1017
1018 btusb_rtl_alloc_devcoredump(hdev, hdr: &hdr, NULL, len: 0);
1019}
1020
1021static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1022{
1023 struct btusb_data *data = hci_get_drvdata(hdev);
1024 struct gpio_desc *reset_gpio = data->reset_gpio;
1025
1026 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1027 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1028 return;
1029 }
1030
1031 if (++data->cmd_timeout_cnt < 5)
1032 return;
1033
1034 if (reset_gpio) {
1035 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1036
1037 /* Toggle the hard reset line. The qca bt device is going to
1038 * yank itself off the USB and then replug. The cleanup is handled
1039 * correctly on the way out (standard USB disconnect), and the new
1040 * device is detected cleanly and bound to the driver again like
1041 * it should be.
1042 */
1043 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, addr: &data->flags)) {
1044 bt_dev_err(hdev, "last reset failed? Not resetting again");
1045 return;
1046 }
1047
1048 gpiod_set_value_cansleep(desc: reset_gpio, value: 0);
1049 msleep(msecs: 200);
1050 gpiod_set_value_cansleep(desc: reset_gpio, value: 1);
1051
1052 return;
1053 }
1054
1055 btusb_reset(hdev);
1056}
1057
1058static inline void btusb_free_frags(struct btusb_data *data)
1059{
1060 unsigned long flags;
1061
1062 spin_lock_irqsave(&data->rxlock, flags);
1063
1064 dev_kfree_skb_irq(skb: data->evt_skb);
1065 data->evt_skb = NULL;
1066
1067 dev_kfree_skb_irq(skb: data->acl_skb);
1068 data->acl_skb = NULL;
1069
1070 dev_kfree_skb_irq(skb: data->sco_skb);
1071 data->sco_skb = NULL;
1072
1073 spin_unlock_irqrestore(lock: &data->rxlock, flags);
1074}
1075
1076static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1077{
1078 if (data->intr_interval) {
1079 /* Trigger dequeue immediatelly if an event is received */
1080 schedule_delayed_work(dwork: &data->rx_work, delay: 0);
1081 }
1082
1083 return data->recv_event(data->hdev, skb);
1084}
1085
1086static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1087{
1088 struct sk_buff *skb;
1089 unsigned long flags;
1090 int err = 0;
1091
1092 spin_lock_irqsave(&data->rxlock, flags);
1093 skb = data->evt_skb;
1094
1095 while (count) {
1096 int len;
1097
1098 if (!skb) {
1099 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1100 if (!skb) {
1101 err = -ENOMEM;
1102 break;
1103 }
1104
1105 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1106 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1107 }
1108
1109 len = min_t(uint, hci_skb_expect(skb), count);
1110 skb_put_data(skb, data: buffer, len);
1111
1112 count -= len;
1113 buffer += len;
1114 hci_skb_expect(skb) -= len;
1115
1116 if (skb->len == HCI_EVENT_HDR_SIZE) {
1117 /* Complete event header */
1118 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1119
1120 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1121 kfree_skb(skb);
1122 skb = NULL;
1123
1124 err = -EILSEQ;
1125 break;
1126 }
1127 }
1128
1129 if (!hci_skb_expect(skb)) {
1130 /* Complete frame */
1131 btusb_recv_event(data, skb);
1132 skb = NULL;
1133 }
1134 }
1135
1136 data->evt_skb = skb;
1137 spin_unlock_irqrestore(lock: &data->rxlock, flags);
1138
1139 return err;
1140}
1141
1142static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1143{
1144 /* Only queue ACL packet if intr_interval is set as it means
1145 * force_poll_sync has been enabled.
1146 */
1147 if (!data->intr_interval)
1148 return data->recv_acl(data->hdev, skb);
1149
1150 skb_queue_tail(list: &data->acl_q, newsk: skb);
1151 schedule_delayed_work(dwork: &data->rx_work, delay: data->intr_interval);
1152
1153 return 0;
1154}
1155
1156static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1157{
1158 struct sk_buff *skb;
1159 unsigned long flags;
1160 int err = 0;
1161
1162 spin_lock_irqsave(&data->rxlock, flags);
1163 skb = data->acl_skb;
1164
1165 while (count) {
1166 int len;
1167
1168 if (!skb) {
1169 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1170 if (!skb) {
1171 err = -ENOMEM;
1172 break;
1173 }
1174
1175 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1176 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1177 }
1178
1179 len = min_t(uint, hci_skb_expect(skb), count);
1180 skb_put_data(skb, data: buffer, len);
1181
1182 count -= len;
1183 buffer += len;
1184 hci_skb_expect(skb) -= len;
1185
1186 if (skb->len == HCI_ACL_HDR_SIZE) {
1187 __le16 dlen = hci_acl_hdr(skb)->dlen;
1188
1189 /* Complete ACL header */
1190 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1191
1192 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1193 kfree_skb(skb);
1194 skb = NULL;
1195
1196 err = -EILSEQ;
1197 break;
1198 }
1199 }
1200
1201 if (!hci_skb_expect(skb)) {
1202 /* Complete frame */
1203 btusb_recv_acl(data, skb);
1204 skb = NULL;
1205 }
1206 }
1207
1208 data->acl_skb = skb;
1209 spin_unlock_irqrestore(lock: &data->rxlock, flags);
1210
1211 return err;
1212}
1213
1214static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1215 struct hci_sco_hdr *hdr)
1216{
1217 __u16 handle;
1218
1219 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1220 // Can't validate, userspace controls everything.
1221 return true;
1222
1223 /*
1224 * USB isochronous transfers are not designed to be reliable and may
1225 * lose fragments. When this happens, the next first fragment
1226 * encountered might actually be a continuation fragment.
1227 * Validate the handle to detect it and drop it, or else the upper
1228 * layer will get garbage for a while.
1229 */
1230
1231 handle = hci_handle(__le16_to_cpu(hdr->handle));
1232
1233 switch (hci_conn_lookup_type(hdev, handle)) {
1234 case SCO_LINK:
1235 case ESCO_LINK:
1236 return true;
1237 default:
1238 return false;
1239 }
1240}
1241
1242static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1243{
1244 struct sk_buff *skb;
1245 unsigned long flags;
1246 int err = 0;
1247
1248 spin_lock_irqsave(&data->rxlock, flags);
1249 skb = data->sco_skb;
1250
1251 while (count) {
1252 int len;
1253
1254 if (!skb) {
1255 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1256 if (!skb) {
1257 err = -ENOMEM;
1258 break;
1259 }
1260
1261 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1262 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1263 }
1264
1265 len = min_t(uint, hci_skb_expect(skb), count);
1266 skb_put_data(skb, data: buffer, len);
1267
1268 count -= len;
1269 buffer += len;
1270 hci_skb_expect(skb) -= len;
1271
1272 if (skb->len == HCI_SCO_HDR_SIZE) {
1273 /* Complete SCO header */
1274 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1275
1276 hci_skb_expect(skb) = hdr->dlen;
1277
1278 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1279 !btusb_validate_sco_handle(hdev: data->hdev, hdr)) {
1280 kfree_skb(skb);
1281 skb = NULL;
1282
1283 err = -EILSEQ;
1284 break;
1285 }
1286 }
1287
1288 if (!hci_skb_expect(skb)) {
1289 /* Complete frame */
1290 hci_recv_frame(hdev: data->hdev, skb);
1291 skb = NULL;
1292 }
1293 }
1294
1295 data->sco_skb = skb;
1296 spin_unlock_irqrestore(lock: &data->rxlock, flags);
1297
1298 return err;
1299}
1300
1301static void btusb_intr_complete(struct urb *urb)
1302{
1303 struct hci_dev *hdev = urb->context;
1304 struct btusb_data *data = hci_get_drvdata(hdev);
1305 int err;
1306
1307 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1308 urb->actual_length);
1309
1310 if (!test_bit(HCI_RUNNING, &hdev->flags))
1311 return;
1312
1313 if (urb->status == 0) {
1314 hdev->stat.byte_rx += urb->actual_length;
1315
1316 if (btusb_recv_intr(data, buffer: urb->transfer_buffer,
1317 count: urb->actual_length) < 0) {
1318 bt_dev_err(hdev, "corrupted event packet");
1319 hdev->stat.err_rx++;
1320 }
1321 } else if (urb->status == -ENOENT) {
1322 /* Avoid suspend failed when usb_kill_urb */
1323 return;
1324 }
1325
1326 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1327 return;
1328
1329 usb_mark_last_busy(udev: data->udev);
1330 usb_anchor_urb(urb, anchor: &data->intr_anchor);
1331
1332 err = usb_submit_urb(urb, GFP_ATOMIC);
1333 if (err < 0) {
1334 /* -EPERM: urb is being killed;
1335 * -ENODEV: device got disconnected
1336 */
1337 if (err != -EPERM && err != -ENODEV)
1338 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1339 urb, -err);
1340 if (err != -EPERM)
1341 hci_cmd_sync_cancel(hdev, err: -err);
1342 usb_unanchor_urb(urb);
1343 }
1344}
1345
1346static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1347{
1348 struct btusb_data *data = hci_get_drvdata(hdev);
1349 struct urb *urb;
1350 unsigned char *buf;
1351 unsigned int pipe;
1352 int err, size;
1353
1354 BT_DBG("%s", hdev->name);
1355
1356 if (!data->intr_ep)
1357 return -ENODEV;
1358
1359 urb = usb_alloc_urb(iso_packets: 0, mem_flags);
1360 if (!urb)
1361 return -ENOMEM;
1362
1363 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1364
1365 buf = kmalloc(size, flags: mem_flags);
1366 if (!buf) {
1367 usb_free_urb(urb);
1368 return -ENOMEM;
1369 }
1370
1371 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1372
1373 usb_fill_int_urb(urb, dev: data->udev, pipe, transfer_buffer: buf, buffer_length: size,
1374 complete_fn: btusb_intr_complete, context: hdev, interval: data->intr_ep->bInterval);
1375
1376 urb->transfer_flags |= URB_FREE_BUFFER;
1377
1378 usb_anchor_urb(urb, anchor: &data->intr_anchor);
1379
1380 err = usb_submit_urb(urb, mem_flags);
1381 if (err < 0) {
1382 if (err != -EPERM && err != -ENODEV)
1383 bt_dev_err(hdev, "urb %p submission failed (%d)",
1384 urb, -err);
1385 if (err != -EPERM)
1386 hci_cmd_sync_cancel(hdev, err: -err);
1387 usb_unanchor_urb(urb);
1388 }
1389
1390 /* Only initialize intr_interval if URB poll sync is enabled */
1391 if (!data->poll_sync)
1392 goto done;
1393
1394 /* The units are frames (milliseconds) for full and low speed devices,
1395 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1396 * devices.
1397 *
1398 * This is done once on open/resume so it shouldn't change even if
1399 * force_poll_sync changes.
1400 */
1401 switch (urb->dev->speed) {
1402 case USB_SPEED_SUPER_PLUS:
1403 case USB_SPEED_SUPER: /* units are 125us */
1404 data->intr_interval = usecs_to_jiffies(u: urb->interval * 125);
1405 break;
1406 default:
1407 data->intr_interval = msecs_to_jiffies(m: urb->interval);
1408 break;
1409 }
1410
1411done:
1412 usb_free_urb(urb);
1413
1414 return err;
1415}
1416
1417static void btusb_bulk_complete(struct urb *urb)
1418{
1419 struct hci_dev *hdev = urb->context;
1420 struct btusb_data *data = hci_get_drvdata(hdev);
1421 int err;
1422
1423 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1424 urb->actual_length);
1425
1426 if (!test_bit(HCI_RUNNING, &hdev->flags))
1427 return;
1428
1429 if (urb->status == 0) {
1430 hdev->stat.byte_rx += urb->actual_length;
1431
1432 if (data->recv_bulk(data, urb->transfer_buffer,
1433 urb->actual_length) < 0) {
1434 bt_dev_err(hdev, "corrupted ACL packet");
1435 hdev->stat.err_rx++;
1436 }
1437 } else if (urb->status == -ENOENT) {
1438 /* Avoid suspend failed when usb_kill_urb */
1439 return;
1440 }
1441
1442 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1443 return;
1444
1445 usb_anchor_urb(urb, anchor: &data->bulk_anchor);
1446 usb_mark_last_busy(udev: data->udev);
1447
1448 err = usb_submit_urb(urb, GFP_ATOMIC);
1449 if (err < 0) {
1450 /* -EPERM: urb is being killed;
1451 * -ENODEV: device got disconnected
1452 */
1453 if (err != -EPERM && err != -ENODEV)
1454 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1455 urb, -err);
1456 usb_unanchor_urb(urb);
1457 }
1458}
1459
1460static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1461{
1462 struct btusb_data *data = hci_get_drvdata(hdev);
1463 struct urb *urb;
1464 unsigned char *buf;
1465 unsigned int pipe;
1466 int err, size = HCI_MAX_FRAME_SIZE;
1467
1468 BT_DBG("%s", hdev->name);
1469
1470 if (!data->bulk_rx_ep)
1471 return -ENODEV;
1472
1473 urb = usb_alloc_urb(iso_packets: 0, mem_flags);
1474 if (!urb)
1475 return -ENOMEM;
1476
1477 buf = kmalloc(size, flags: mem_flags);
1478 if (!buf) {
1479 usb_free_urb(urb);
1480 return -ENOMEM;
1481 }
1482
1483 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1484
1485 usb_fill_bulk_urb(urb, dev: data->udev, pipe, transfer_buffer: buf, buffer_length: size,
1486 complete_fn: btusb_bulk_complete, context: hdev);
1487
1488 urb->transfer_flags |= URB_FREE_BUFFER;
1489
1490 usb_mark_last_busy(udev: data->udev);
1491 usb_anchor_urb(urb, anchor: &data->bulk_anchor);
1492
1493 err = usb_submit_urb(urb, mem_flags);
1494 if (err < 0) {
1495 if (err != -EPERM && err != -ENODEV)
1496 bt_dev_err(hdev, "urb %p submission failed (%d)",
1497 urb, -err);
1498 usb_unanchor_urb(urb);
1499 }
1500
1501 usb_free_urb(urb);
1502
1503 return err;
1504}
1505
1506static void btusb_isoc_complete(struct urb *urb)
1507{
1508 struct hci_dev *hdev = urb->context;
1509 struct btusb_data *data = hci_get_drvdata(hdev);
1510 int i, err;
1511
1512 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1513 urb->actual_length);
1514
1515 if (!test_bit(HCI_RUNNING, &hdev->flags))
1516 return;
1517
1518 if (urb->status == 0) {
1519 for (i = 0; i < urb->number_of_packets; i++) {
1520 unsigned int offset = urb->iso_frame_desc[i].offset;
1521 unsigned int length = urb->iso_frame_desc[i].actual_length;
1522
1523 if (urb->iso_frame_desc[i].status)
1524 continue;
1525
1526 hdev->stat.byte_rx += length;
1527
1528 if (btusb_recv_isoc(data, buffer: urb->transfer_buffer + offset,
1529 count: length) < 0) {
1530 bt_dev_err(hdev, "corrupted SCO packet");
1531 hdev->stat.err_rx++;
1532 }
1533 }
1534 } else if (urb->status == -ENOENT) {
1535 /* Avoid suspend failed when usb_kill_urb */
1536 return;
1537 }
1538
1539 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1540 return;
1541
1542 usb_anchor_urb(urb, anchor: &data->isoc_anchor);
1543
1544 err = usb_submit_urb(urb, GFP_ATOMIC);
1545 if (err < 0) {
1546 /* -EPERM: urb is being killed;
1547 * -ENODEV: device got disconnected
1548 */
1549 if (err != -EPERM && err != -ENODEV)
1550 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1551 urb, -err);
1552 usb_unanchor_urb(urb);
1553 }
1554}
1555
1556static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1557 int mtu, struct btusb_data *data)
1558{
1559 int i = 0, offset = 0;
1560 unsigned int interval;
1561
1562 BT_DBG("len %d mtu %d", len, mtu);
1563
1564 /* For mSBC ALT 6 settings some chips need to transmit the data
1565 * continuously without the zero length of USB packets.
1566 */
1567 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1568 goto ignore_usb_alt6_packet_flow;
1569
1570 /* For mSBC ALT 6 setting the host will send the packet at continuous
1571 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1572 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1573 * To maintain the rate we send 63bytes of usb packets alternatively for
1574 * 7ms and 8ms to maintain the rate as 7.5ms.
1575 */
1576 if (data->usb_alt6_packet_flow) {
1577 interval = 7;
1578 data->usb_alt6_packet_flow = false;
1579 } else {
1580 interval = 6;
1581 data->usb_alt6_packet_flow = true;
1582 }
1583
1584 for (i = 0; i < interval; i++) {
1585 urb->iso_frame_desc[i].offset = offset;
1586 urb->iso_frame_desc[i].length = offset;
1587 }
1588
1589ignore_usb_alt6_packet_flow:
1590 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1591 urb->iso_frame_desc[i].offset = offset;
1592 urb->iso_frame_desc[i].length = len;
1593 i++;
1594 }
1595
1596 urb->number_of_packets = i;
1597}
1598
1599static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1600{
1601 int i, offset = 0;
1602
1603 BT_DBG("len %d mtu %d", len, mtu);
1604
1605 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1606 i++, offset += mtu, len -= mtu) {
1607 urb->iso_frame_desc[i].offset = offset;
1608 urb->iso_frame_desc[i].length = mtu;
1609 }
1610
1611 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1612 urb->iso_frame_desc[i].offset = offset;
1613 urb->iso_frame_desc[i].length = len;
1614 i++;
1615 }
1616
1617 urb->number_of_packets = i;
1618}
1619
1620static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1621{
1622 struct btusb_data *data = hci_get_drvdata(hdev);
1623 struct urb *urb;
1624 unsigned char *buf;
1625 unsigned int pipe;
1626 int err, size;
1627
1628 BT_DBG("%s", hdev->name);
1629
1630 if (!data->isoc_rx_ep)
1631 return -ENODEV;
1632
1633 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1634 if (!urb)
1635 return -ENOMEM;
1636
1637 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1638 BTUSB_MAX_ISOC_FRAMES;
1639
1640 buf = kmalloc(size, flags: mem_flags);
1641 if (!buf) {
1642 usb_free_urb(urb);
1643 return -ENOMEM;
1644 }
1645
1646 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1647
1648 usb_fill_int_urb(urb, dev: data->udev, pipe, transfer_buffer: buf, buffer_length: size, complete_fn: btusb_isoc_complete,
1649 context: hdev, interval: data->isoc_rx_ep->bInterval);
1650
1651 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1652
1653 __fill_isoc_descriptor(urb, len: size,
1654 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1655
1656 usb_anchor_urb(urb, anchor: &data->isoc_anchor);
1657
1658 err = usb_submit_urb(urb, mem_flags);
1659 if (err < 0) {
1660 if (err != -EPERM && err != -ENODEV)
1661 bt_dev_err(hdev, "urb %p submission failed (%d)",
1662 urb, -err);
1663 usb_unanchor_urb(urb);
1664 }
1665
1666 usb_free_urb(urb);
1667
1668 return err;
1669}
1670
1671static void btusb_diag_complete(struct urb *urb)
1672{
1673 struct hci_dev *hdev = urb->context;
1674 struct btusb_data *data = hci_get_drvdata(hdev);
1675 int err;
1676
1677 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1678 urb->actual_length);
1679
1680 if (urb->status == 0) {
1681 struct sk_buff *skb;
1682
1683 skb = bt_skb_alloc(len: urb->actual_length, GFP_ATOMIC);
1684 if (skb) {
1685 skb_put_data(skb, data: urb->transfer_buffer,
1686 len: urb->actual_length);
1687 hci_recv_diag(hdev, skb);
1688 }
1689 } else if (urb->status == -ENOENT) {
1690 /* Avoid suspend failed when usb_kill_urb */
1691 return;
1692 }
1693
1694 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1695 return;
1696
1697 usb_anchor_urb(urb, anchor: &data->diag_anchor);
1698 usb_mark_last_busy(udev: data->udev);
1699
1700 err = usb_submit_urb(urb, GFP_ATOMIC);
1701 if (err < 0) {
1702 /* -EPERM: urb is being killed;
1703 * -ENODEV: device got disconnected
1704 */
1705 if (err != -EPERM && err != -ENODEV)
1706 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1707 urb, -err);
1708 usb_unanchor_urb(urb);
1709 }
1710}
1711
1712static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1713{
1714 struct btusb_data *data = hci_get_drvdata(hdev);
1715 struct urb *urb;
1716 unsigned char *buf;
1717 unsigned int pipe;
1718 int err, size = HCI_MAX_FRAME_SIZE;
1719
1720 BT_DBG("%s", hdev->name);
1721
1722 if (!data->diag_rx_ep)
1723 return -ENODEV;
1724
1725 urb = usb_alloc_urb(iso_packets: 0, mem_flags);
1726 if (!urb)
1727 return -ENOMEM;
1728
1729 buf = kmalloc(size, flags: mem_flags);
1730 if (!buf) {
1731 usb_free_urb(urb);
1732 return -ENOMEM;
1733 }
1734
1735 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1736
1737 usb_fill_bulk_urb(urb, dev: data->udev, pipe, transfer_buffer: buf, buffer_length: size,
1738 complete_fn: btusb_diag_complete, context: hdev);
1739
1740 urb->transfer_flags |= URB_FREE_BUFFER;
1741
1742 usb_mark_last_busy(udev: data->udev);
1743 usb_anchor_urb(urb, anchor: &data->diag_anchor);
1744
1745 err = usb_submit_urb(urb, mem_flags);
1746 if (err < 0) {
1747 if (err != -EPERM && err != -ENODEV)
1748 bt_dev_err(hdev, "urb %p submission failed (%d)",
1749 urb, -err);
1750 usb_unanchor_urb(urb);
1751 }
1752
1753 usb_free_urb(urb);
1754
1755 return err;
1756}
1757
1758static void btusb_tx_complete(struct urb *urb)
1759{
1760 struct sk_buff *skb = urb->context;
1761 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1762 struct btusb_data *data = hci_get_drvdata(hdev);
1763 unsigned long flags;
1764
1765 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1766 urb->actual_length);
1767
1768 if (!test_bit(HCI_RUNNING, &hdev->flags))
1769 goto done;
1770
1771 if (!urb->status) {
1772 hdev->stat.byte_tx += urb->transfer_buffer_length;
1773 } else {
1774 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1775 hci_cmd_sync_cancel(hdev, err: -urb->status);
1776 hdev->stat.err_tx++;
1777 }
1778
1779done:
1780 spin_lock_irqsave(&data->txlock, flags);
1781 data->tx_in_flight--;
1782 spin_unlock_irqrestore(lock: &data->txlock, flags);
1783
1784 kfree(objp: urb->setup_packet);
1785
1786 kfree_skb(skb);
1787}
1788
1789static void btusb_isoc_tx_complete(struct urb *urb)
1790{
1791 struct sk_buff *skb = urb->context;
1792 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1793
1794 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1795 urb->actual_length);
1796
1797 if (!test_bit(HCI_RUNNING, &hdev->flags))
1798 goto done;
1799
1800 if (!urb->status)
1801 hdev->stat.byte_tx += urb->transfer_buffer_length;
1802 else
1803 hdev->stat.err_tx++;
1804
1805done:
1806 kfree(objp: urb->setup_packet);
1807
1808 kfree_skb(skb);
1809}
1810
1811static int btusb_open(struct hci_dev *hdev)
1812{
1813 struct btusb_data *data = hci_get_drvdata(hdev);
1814 int err;
1815
1816 BT_DBG("%s", hdev->name);
1817
1818 err = usb_autopm_get_interface(intf: data->intf);
1819 if (err < 0)
1820 return err;
1821
1822 /* Patching USB firmware files prior to starting any URBs of HCI path
1823 * It is more safe to use USB bulk channel for downloading USB patch
1824 */
1825 if (data->setup_on_usb) {
1826 err = data->setup_on_usb(hdev);
1827 if (err < 0)
1828 goto setup_fail;
1829 }
1830
1831 data->intf->needs_remote_wakeup = 1;
1832
1833 if (test_and_set_bit(BTUSB_INTR_RUNNING, addr: &data->flags))
1834 goto done;
1835
1836 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1837 if (err < 0)
1838 goto failed;
1839
1840 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1841 if (err < 0) {
1842 usb_kill_anchored_urbs(anchor: &data->intr_anchor);
1843 goto failed;
1844 }
1845
1846 set_bit(BTUSB_BULK_RUNNING, addr: &data->flags);
1847 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1848
1849 if (data->diag) {
1850 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1851 set_bit(BTUSB_DIAG_RUNNING, addr: &data->flags);
1852 }
1853
1854done:
1855 usb_autopm_put_interface(intf: data->intf);
1856 return 0;
1857
1858failed:
1859 clear_bit(BTUSB_INTR_RUNNING, addr: &data->flags);
1860setup_fail:
1861 usb_autopm_put_interface(intf: data->intf);
1862 return err;
1863}
1864
1865static void btusb_stop_traffic(struct btusb_data *data)
1866{
1867 usb_kill_anchored_urbs(anchor: &data->intr_anchor);
1868 usb_kill_anchored_urbs(anchor: &data->bulk_anchor);
1869 usb_kill_anchored_urbs(anchor: &data->isoc_anchor);
1870 usb_kill_anchored_urbs(anchor: &data->diag_anchor);
1871 usb_kill_anchored_urbs(anchor: &data->ctrl_anchor);
1872}
1873
1874static int btusb_close(struct hci_dev *hdev)
1875{
1876 struct btusb_data *data = hci_get_drvdata(hdev);
1877 int err;
1878
1879 BT_DBG("%s", hdev->name);
1880
1881 cancel_delayed_work(dwork: &data->rx_work);
1882 cancel_work_sync(work: &data->work);
1883 cancel_work_sync(work: &data->waker);
1884
1885 skb_queue_purge(list: &data->acl_q);
1886
1887 clear_bit(BTUSB_ISOC_RUNNING, addr: &data->flags);
1888 clear_bit(BTUSB_BULK_RUNNING, addr: &data->flags);
1889 clear_bit(BTUSB_INTR_RUNNING, addr: &data->flags);
1890 clear_bit(BTUSB_DIAG_RUNNING, addr: &data->flags);
1891
1892 btusb_stop_traffic(data);
1893 btusb_free_frags(data);
1894
1895 err = usb_autopm_get_interface(intf: data->intf);
1896 if (err < 0)
1897 goto failed;
1898
1899 data->intf->needs_remote_wakeup = 0;
1900
1901 /* Enable remote wake up for auto-suspend */
1902 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1903 data->intf->needs_remote_wakeup = 1;
1904
1905 usb_autopm_put_interface(intf: data->intf);
1906
1907failed:
1908 usb_scuttle_anchored_urbs(anchor: &data->deferred);
1909 return 0;
1910}
1911
1912static int btusb_flush(struct hci_dev *hdev)
1913{
1914 struct btusb_data *data = hci_get_drvdata(hdev);
1915
1916 BT_DBG("%s", hdev->name);
1917
1918 cancel_delayed_work(dwork: &data->rx_work);
1919
1920 skb_queue_purge(list: &data->acl_q);
1921
1922 usb_kill_anchored_urbs(anchor: &data->tx_anchor);
1923 btusb_free_frags(data);
1924
1925 return 0;
1926}
1927
1928static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1929{
1930 struct btusb_data *data = hci_get_drvdata(hdev);
1931 struct usb_ctrlrequest *dr;
1932 struct urb *urb;
1933 unsigned int pipe;
1934
1935 urb = usb_alloc_urb(iso_packets: 0, GFP_KERNEL);
1936 if (!urb)
1937 return ERR_PTR(error: -ENOMEM);
1938
1939 dr = kmalloc(size: sizeof(*dr), GFP_KERNEL);
1940 if (!dr) {
1941 usb_free_urb(urb);
1942 return ERR_PTR(error: -ENOMEM);
1943 }
1944
1945 dr->bRequestType = data->cmdreq_type;
1946 dr->bRequest = data->cmdreq;
1947 dr->wIndex = 0;
1948 dr->wValue = 0;
1949 dr->wLength = __cpu_to_le16(skb->len);
1950
1951 pipe = usb_sndctrlpipe(data->udev, 0x00);
1952
1953 usb_fill_control_urb(urb, dev: data->udev, pipe, setup_packet: (void *)dr,
1954 transfer_buffer: skb->data, buffer_length: skb->len, complete_fn: btusb_tx_complete, context: skb);
1955
1956 skb->dev = (void *)hdev;
1957
1958 return urb;
1959}
1960
1961static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1962{
1963 struct btusb_data *data = hci_get_drvdata(hdev);
1964 struct urb *urb;
1965 unsigned int pipe;
1966
1967 if (!data->bulk_tx_ep)
1968 return ERR_PTR(error: -ENODEV);
1969
1970 urb = usb_alloc_urb(iso_packets: 0, GFP_KERNEL);
1971 if (!urb)
1972 return ERR_PTR(error: -ENOMEM);
1973
1974 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1975
1976 usb_fill_bulk_urb(urb, dev: data->udev, pipe,
1977 transfer_buffer: skb->data, buffer_length: skb->len, complete_fn: btusb_tx_complete, context: skb);
1978
1979 skb->dev = (void *)hdev;
1980
1981 return urb;
1982}
1983
1984static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1985{
1986 struct btusb_data *data = hci_get_drvdata(hdev);
1987 struct urb *urb;
1988 unsigned int pipe;
1989
1990 if (!data->isoc_tx_ep)
1991 return ERR_PTR(error: -ENODEV);
1992
1993 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1994 if (!urb)
1995 return ERR_PTR(error: -ENOMEM);
1996
1997 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1998
1999 usb_fill_int_urb(urb, dev: data->udev, pipe,
2000 transfer_buffer: skb->data, buffer_length: skb->len, complete_fn: btusb_isoc_tx_complete,
2001 context: skb, interval: data->isoc_tx_ep->bInterval);
2002
2003 urb->transfer_flags = URB_ISO_ASAP;
2004
2005 if (data->isoc_altsetting == 6)
2006 __fill_isoc_descriptor_msbc(urb, len: skb->len,
2007 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2008 data);
2009 else
2010 __fill_isoc_descriptor(urb, len: skb->len,
2011 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2012 skb->dev = (void *)hdev;
2013
2014 return urb;
2015}
2016
2017static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2018{
2019 struct btusb_data *data = hci_get_drvdata(hdev);
2020 int err;
2021
2022 usb_anchor_urb(urb, anchor: &data->tx_anchor);
2023
2024 err = usb_submit_urb(urb, GFP_KERNEL);
2025 if (err < 0) {
2026 if (err != -EPERM && err != -ENODEV)
2027 bt_dev_err(hdev, "urb %p submission failed (%d)",
2028 urb, -err);
2029 kfree(objp: urb->setup_packet);
2030 usb_unanchor_urb(urb);
2031 } else {
2032 usb_mark_last_busy(udev: data->udev);
2033 }
2034
2035 usb_free_urb(urb);
2036 return err;
2037}
2038
2039static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2040{
2041 struct btusb_data *data = hci_get_drvdata(hdev);
2042 unsigned long flags;
2043 bool suspending;
2044
2045 spin_lock_irqsave(&data->txlock, flags);
2046 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2047 if (!suspending)
2048 data->tx_in_flight++;
2049 spin_unlock_irqrestore(lock: &data->txlock, flags);
2050
2051 if (!suspending)
2052 return submit_tx_urb(hdev, urb);
2053
2054 usb_anchor_urb(urb, anchor: &data->deferred);
2055 schedule_work(work: &data->waker);
2056
2057 usb_free_urb(urb);
2058 return 0;
2059}
2060
2061static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2062{
2063 struct urb *urb;
2064
2065 BT_DBG("%s", hdev->name);
2066
2067 switch (hci_skb_pkt_type(skb)) {
2068 case HCI_COMMAND_PKT:
2069 urb = alloc_ctrl_urb(hdev, skb);
2070 if (IS_ERR(ptr: urb))
2071 return PTR_ERR(ptr: urb);
2072
2073 hdev->stat.cmd_tx++;
2074 return submit_or_queue_tx_urb(hdev, urb);
2075
2076 case HCI_ACLDATA_PKT:
2077 urb = alloc_bulk_urb(hdev, skb);
2078 if (IS_ERR(ptr: urb))
2079 return PTR_ERR(ptr: urb);
2080
2081 hdev->stat.acl_tx++;
2082 return submit_or_queue_tx_urb(hdev, urb);
2083
2084 case HCI_SCODATA_PKT:
2085 if (hci_conn_num(hdev, SCO_LINK) < 1)
2086 return -ENODEV;
2087
2088 urb = alloc_isoc_urb(hdev, skb);
2089 if (IS_ERR(ptr: urb))
2090 return PTR_ERR(ptr: urb);
2091
2092 hdev->stat.sco_tx++;
2093 return submit_tx_urb(hdev, urb);
2094
2095 case HCI_ISODATA_PKT:
2096 urb = alloc_bulk_urb(hdev, skb);
2097 if (IS_ERR(ptr: urb))
2098 return PTR_ERR(ptr: urb);
2099
2100 return submit_or_queue_tx_urb(hdev, urb);
2101 }
2102
2103 return -EILSEQ;
2104}
2105
2106static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2107{
2108 struct btusb_data *data = hci_get_drvdata(hdev);
2109
2110 BT_DBG("%s evt %d", hdev->name, evt);
2111
2112 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2113 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2114 data->air_mode = evt;
2115 schedule_work(work: &data->work);
2116 }
2117}
2118
2119static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2120{
2121 struct btusb_data *data = hci_get_drvdata(hdev);
2122 struct usb_interface *intf = data->isoc;
2123 struct usb_endpoint_descriptor *ep_desc;
2124 int i, err;
2125
2126 if (!data->isoc)
2127 return -ENODEV;
2128
2129 err = usb_set_interface(dev: data->udev, ifnum: data->isoc_ifnum, alternate: altsetting);
2130 if (err < 0) {
2131 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2132 return err;
2133 }
2134
2135 data->isoc_altsetting = altsetting;
2136
2137 data->isoc_tx_ep = NULL;
2138 data->isoc_rx_ep = NULL;
2139
2140 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2141 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2142
2143 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(epd: ep_desc)) {
2144 data->isoc_tx_ep = ep_desc;
2145 continue;
2146 }
2147
2148 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(epd: ep_desc)) {
2149 data->isoc_rx_ep = ep_desc;
2150 continue;
2151 }
2152 }
2153
2154 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2155 bt_dev_err(hdev, "invalid SCO descriptors");
2156 return -ENODEV;
2157 }
2158
2159 return 0;
2160}
2161
2162static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2163{
2164 struct btusb_data *data = hci_get_drvdata(hdev);
2165 int err;
2166
2167 if (data->isoc_altsetting != new_alts) {
2168 unsigned long flags;
2169
2170 clear_bit(BTUSB_ISOC_RUNNING, addr: &data->flags);
2171 usb_kill_anchored_urbs(anchor: &data->isoc_anchor);
2172
2173 /* When isochronous alternate setting needs to be
2174 * changed, because SCO connection has been added
2175 * or removed, a packet fragment may be left in the
2176 * reassembling state. This could lead to wrongly
2177 * assembled fragments.
2178 *
2179 * Clear outstanding fragment when selecting a new
2180 * alternate setting.
2181 */
2182 spin_lock_irqsave(&data->rxlock, flags);
2183 dev_kfree_skb_irq(skb: data->sco_skb);
2184 data->sco_skb = NULL;
2185 spin_unlock_irqrestore(lock: &data->rxlock, flags);
2186
2187 err = __set_isoc_interface(hdev, altsetting: new_alts);
2188 if (err < 0)
2189 return err;
2190 }
2191
2192 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, addr: &data->flags)) {
2193 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2194 clear_bit(BTUSB_ISOC_RUNNING, addr: &data->flags);
2195 else
2196 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2197 }
2198
2199 return 0;
2200}
2201
2202static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2203 int alt)
2204{
2205 struct usb_interface *intf = data->isoc;
2206 int i;
2207
2208 BT_DBG("Looking for Alt no :%d", alt);
2209
2210 if (!intf)
2211 return NULL;
2212
2213 for (i = 0; i < intf->num_altsetting; i++) {
2214 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2215 return &intf->altsetting[i];
2216 }
2217
2218 return NULL;
2219}
2220
2221static void btusb_work(struct work_struct *work)
2222{
2223 struct btusb_data *data = container_of(work, struct btusb_data, work);
2224 struct hci_dev *hdev = data->hdev;
2225 int new_alts = 0;
2226 int err;
2227
2228 if (data->sco_num > 0) {
2229 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2230 err = usb_autopm_get_interface(intf: data->isoc ? data->isoc : data->intf);
2231 if (err < 0) {
2232 clear_bit(BTUSB_ISOC_RUNNING, addr: &data->flags);
2233 usb_kill_anchored_urbs(anchor: &data->isoc_anchor);
2234 return;
2235 }
2236
2237 set_bit(BTUSB_DID_ISO_RESUME, addr: &data->flags);
2238 }
2239
2240 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2241 if (hdev->voice_setting & 0x0020) {
2242 static const int alts[3] = { 2, 4, 5 };
2243
2244 new_alts = alts[data->sco_num - 1];
2245 } else {
2246 new_alts = data->sco_num;
2247 }
2248 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2249 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2250 * many adapters do not support it. Alt 1 appears to
2251 * work for all adapters that do not have alt 6, and
2252 * which work with WBS at all. Some devices prefer
2253 * alt 3 (HCI payload >= 60 Bytes let air packet
2254 * data satisfy 60 bytes), requiring
2255 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2256 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2257 */
2258 if (btusb_find_altsetting(data, alt: 6))
2259 new_alts = 6;
2260 else if (btusb_find_altsetting(data, alt: 3) &&
2261 hdev->sco_mtu >= 72 &&
2262 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2263 new_alts = 3;
2264 else
2265 new_alts = 1;
2266 }
2267
2268 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2269 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2270 } else {
2271 usb_kill_anchored_urbs(anchor: &data->isoc_anchor);
2272
2273 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, addr: &data->flags))
2274 __set_isoc_interface(hdev, altsetting: 0);
2275
2276 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, addr: &data->flags))
2277 usb_autopm_put_interface(intf: data->isoc ? data->isoc : data->intf);
2278 }
2279}
2280
2281static void btusb_waker(struct work_struct *work)
2282{
2283 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2284 int err;
2285
2286 err = usb_autopm_get_interface(intf: data->intf);
2287 if (err < 0)
2288 return;
2289
2290 usb_autopm_put_interface(intf: data->intf);
2291}
2292
2293static void btusb_rx_work(struct work_struct *work)
2294{
2295 struct btusb_data *data = container_of(work, struct btusb_data,
2296 rx_work.work);
2297 struct sk_buff *skb;
2298
2299 /* Dequeue ACL data received during the interval */
2300 while ((skb = skb_dequeue(list: &data->acl_q)))
2301 data->recv_acl(data->hdev, skb);
2302}
2303
2304static int btusb_setup_bcm92035(struct hci_dev *hdev)
2305{
2306 struct sk_buff *skb;
2307 u8 val = 0x00;
2308
2309 BT_DBG("%s", hdev->name);
2310
2311 skb = __hci_cmd_sync(hdev, opcode: 0xfc3b, plen: 1, param: &val, HCI_INIT_TIMEOUT);
2312 if (IS_ERR(ptr: skb))
2313 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2314 else
2315 kfree_skb(skb);
2316
2317 return 0;
2318}
2319
2320static int btusb_setup_csr(struct hci_dev *hdev)
2321{
2322 struct btusb_data *data = hci_get_drvdata(hdev);
2323 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2324 struct hci_rp_read_local_version *rp;
2325 struct sk_buff *skb;
2326 bool is_fake = false;
2327 int ret;
2328
2329 BT_DBG("%s", hdev->name);
2330
2331 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, plen: 0, NULL,
2332 HCI_INIT_TIMEOUT);
2333 if (IS_ERR(ptr: skb)) {
2334 int err = PTR_ERR(ptr: skb);
2335 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2336 return err;
2337 }
2338
2339 rp = skb_pull_data(skb, len: sizeof(*rp));
2340 if (!rp) {
2341 bt_dev_err(hdev, "CSR: Local version length mismatch");
2342 kfree_skb(skb);
2343 return -EIO;
2344 }
2345
2346 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2347 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2348
2349 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2350 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2351 le16_to_cpu(rp->manufacturer));
2352
2353 /* Detect a wide host of Chinese controllers that aren't CSR.
2354 *
2355 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2356 *
2357 * The main thing they have in common is that these are really popular low-cost
2358 * options that support newer Bluetooth versions but rely on heavy VID/PID
2359 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2360 *
2361 * We detect actual CSR devices by checking that the HCI manufacturer code
2362 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2363 * HCI rev values always match. As they both store the firmware number.
2364 */
2365 if (le16_to_cpu(rp->manufacturer) != 10 ||
2366 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2367 is_fake = true;
2368
2369 /* Known legit CSR firmware build numbers and their supported BT versions:
2370 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2371 * - 1.2 (0x2) -> 0x04d9, 0x0529
2372 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2373 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2374 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2375 *
2376 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2377 * support BT 1.1 only; so it's a dead giveaway when some
2378 * third-party BT 4.0 dongle reuses it.
2379 */
2380 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2381 rp->hci_ver > BLUETOOTH_VER_1_1)
2382 is_fake = true;
2383
2384 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2385 rp->hci_ver > BLUETOOTH_VER_1_2)
2386 is_fake = true;
2387
2388 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2389 rp->hci_ver > BLUETOOTH_VER_2_0)
2390 is_fake = true;
2391
2392 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2393 rp->hci_ver > BLUETOOTH_VER_2_1)
2394 is_fake = true;
2395
2396 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2397 rp->hci_ver > BLUETOOTH_VER_4_0)
2398 is_fake = true;
2399
2400 /* Other clones which beat all the above checks */
2401 else if (bcdDevice == 0x0134 &&
2402 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2403 rp->hci_ver == BLUETOOTH_VER_2_0)
2404 is_fake = true;
2405
2406 if (is_fake) {
2407 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2408
2409 /* Generally these clones have big discrepancies between
2410 * advertised features and what's actually supported.
2411 * Probably will need to be expanded in the future;
2412 * without these the controller will lock up.
2413 */
2414 set_bit(nr: HCI_QUIRK_BROKEN_STORED_LINK_KEY, addr: &hdev->quirks);
2415 set_bit(nr: HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, addr: &hdev->quirks);
2416 set_bit(nr: HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, addr: &hdev->quirks);
2417 set_bit(nr: HCI_QUIRK_NO_SUSPEND_NOTIFIER, addr: &hdev->quirks);
2418
2419 /* Clear the reset quirk since this is not an actual
2420 * early Bluetooth 1.1 device from CSR.
2421 */
2422 clear_bit(nr: HCI_QUIRK_RESET_ON_CLOSE, addr: &hdev->quirks);
2423 clear_bit(nr: HCI_QUIRK_SIMULTANEOUS_DISCOVERY, addr: &hdev->quirks);
2424
2425 /*
2426 * Special workaround for these BT 4.0 chip clones, and potentially more:
2427 *
2428 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2429 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2430 *
2431 * These controllers are really messed-up.
2432 *
2433 * 1. Their bulk RX endpoint will never report any data unless
2434 * the device was suspended at least once (yes, really).
2435 * 2. They will not wakeup when autosuspended and receiving data
2436 * on their bulk RX endpoint from e.g. a keyboard or mouse
2437 * (IOW remote-wakeup support is broken for the bulk endpoint).
2438 *
2439 * To fix 1. enable runtime-suspend, force-suspend the
2440 * HCI and then wake-it up by disabling runtime-suspend.
2441 *
2442 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2443 * will still be autosuspended when it is not open.
2444 *
2445 * --
2446 *
2447 * Because these are widespread problems we prefer generic solutions; so
2448 * apply this initialization quirk to every controller that gets here,
2449 * it should be harmless. The alternative is to not work at all.
2450 */
2451 pm_runtime_allow(dev: &data->udev->dev);
2452
2453 ret = pm_runtime_suspend(dev: &data->udev->dev);
2454 if (ret >= 0)
2455 msleep(msecs: 200);
2456 else
2457 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2458
2459 pm_runtime_forbid(dev: &data->udev->dev);
2460
2461 device_set_wakeup_capable(dev: &data->udev->dev, capable: false);
2462
2463 /* Re-enable autosuspend if this was requested */
2464 if (enable_autosuspend)
2465 usb_enable_autosuspend(udev: data->udev);
2466 }
2467
2468 kfree_skb(skb);
2469
2470 return 0;
2471}
2472
2473static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2474{
2475 struct sk_buff *skb;
2476 struct hci_event_hdr *hdr;
2477 struct hci_ev_cmd_complete *evt;
2478
2479 skb = bt_skb_alloc(len: sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2480 if (!skb)
2481 return -ENOMEM;
2482
2483 hdr = skb_put(skb, len: sizeof(*hdr));
2484 hdr->evt = HCI_EV_CMD_COMPLETE;
2485 hdr->plen = sizeof(*evt) + 1;
2486
2487 evt = skb_put(skb, len: sizeof(*evt));
2488 evt->ncmd = 0x01;
2489 evt->opcode = cpu_to_le16(opcode);
2490
2491 skb_put_u8(skb, val: 0x00);
2492
2493 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2494
2495 return hci_recv_frame(hdev, skb);
2496}
2497
2498static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2499 int count)
2500{
2501 struct hci_dev *hdev = data->hdev;
2502
2503 /* When the device is in bootloader mode, then it can send
2504 * events via the bulk endpoint. These events are treated the
2505 * same way as the ones received from the interrupt endpoint.
2506 */
2507 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2508 return btusb_recv_intr(data, buffer, count);
2509
2510 return btusb_recv_bulk(data, buffer, count);
2511}
2512
2513static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2514{
2515 struct urb *urb;
2516
2517 BT_DBG("%s", hdev->name);
2518
2519 switch (hci_skb_pkt_type(skb)) {
2520 case HCI_COMMAND_PKT:
2521 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2522 struct hci_command_hdr *cmd = (void *)skb->data;
2523 __u16 opcode = le16_to_cpu(cmd->opcode);
2524
2525 /* When in bootloader mode and the command 0xfc09
2526 * is received, it needs to be send down the
2527 * bulk endpoint. So allocate a bulk URB instead.
2528 */
2529 if (opcode == 0xfc09)
2530 urb = alloc_bulk_urb(hdev, skb);
2531 else
2532 urb = alloc_ctrl_urb(hdev, skb);
2533
2534 /* When the 0xfc01 command is issued to boot into
2535 * the operational firmware, it will actually not
2536 * send a command complete event. To keep the flow
2537 * control working inject that event here.
2538 */
2539 if (opcode == 0xfc01)
2540 inject_cmd_complete(hdev, opcode);
2541 } else {
2542 urb = alloc_ctrl_urb(hdev, skb);
2543 }
2544 if (IS_ERR(ptr: urb))
2545 return PTR_ERR(ptr: urb);
2546
2547 hdev->stat.cmd_tx++;
2548 return submit_or_queue_tx_urb(hdev, urb);
2549
2550 case HCI_ACLDATA_PKT:
2551 urb = alloc_bulk_urb(hdev, skb);
2552 if (IS_ERR(ptr: urb))
2553 return PTR_ERR(ptr: urb);
2554
2555 hdev->stat.acl_tx++;
2556 return submit_or_queue_tx_urb(hdev, urb);
2557
2558 case HCI_SCODATA_PKT:
2559 if (hci_conn_num(hdev, SCO_LINK) < 1)
2560 return -ENODEV;
2561
2562 urb = alloc_isoc_urb(hdev, skb);
2563 if (IS_ERR(ptr: urb))
2564 return PTR_ERR(ptr: urb);
2565
2566 hdev->stat.sco_tx++;
2567 return submit_tx_urb(hdev, urb);
2568
2569 case HCI_ISODATA_PKT:
2570 urb = alloc_bulk_urb(hdev, skb);
2571 if (IS_ERR(ptr: urb))
2572 return PTR_ERR(ptr: urb);
2573
2574 return submit_or_queue_tx_urb(hdev, urb);
2575 }
2576
2577 return -EILSEQ;
2578}
2579
2580static int btusb_setup_realtek(struct hci_dev *hdev)
2581{
2582 struct btusb_data *data = hci_get_drvdata(hdev);
2583 int ret;
2584
2585 ret = btrtl_setup_realtek(hdev);
2586
2587 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2588 set_bit(BTUSB_ALT6_CONTINUOUS_TX, addr: &data->flags);
2589
2590 return ret;
2591}
2592
2593static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2594{
2595 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2596 struct rtk_dev_coredump_hdr hdr = {
2597 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2598 };
2599
2600 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2601 skb->len);
2602
2603 btusb_rtl_alloc_devcoredump(hdev, hdr: &hdr, buf: skb->data, len: skb->len);
2604 kfree_skb(skb);
2605
2606 return 0;
2607 }
2608
2609 return hci_recv_frame(hdev, skb);
2610}
2611
2612/* UHW CR mapping */
2613#define MTK_BT_MISC 0x70002510
2614#define MTK_BT_SUBSYS_RST 0x70002610
2615#define MTK_UDMA_INT_STA_BT 0x74000024
2616#define MTK_UDMA_INT_STA_BT1 0x74000308
2617#define MTK_BT_WDT_STATUS 0x740003A0
2618#define MTK_EP_RST_OPT 0x74011890
2619#define MTK_EP_RST_IN_OUT_OPT 0x00010001
2620#define MTK_BT_RST_DONE 0x00000100
2621#define MTK_BT_RESET_REG_CONNV3 0x70028610
2622#define MTK_BT_READ_DEV_ID 0x70010200
2623
2624
2625static void btusb_mtk_wmt_recv(struct urb *urb)
2626{
2627 struct hci_dev *hdev = urb->context;
2628 struct btusb_data *data = hci_get_drvdata(hdev);
2629 struct sk_buff *skb;
2630 int err;
2631
2632 if (urb->status == 0 && urb->actual_length > 0) {
2633 hdev->stat.byte_rx += urb->actual_length;
2634
2635 /* WMT event shouldn't be fragmented and the size should be
2636 * less than HCI_WMT_MAX_EVENT_SIZE.
2637 */
2638 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2639 if (!skb) {
2640 hdev->stat.err_rx++;
2641 kfree(objp: urb->setup_packet);
2642 return;
2643 }
2644
2645 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2646 skb_put_data(skb, data: urb->transfer_buffer, len: urb->actual_length);
2647
2648 /* When someone waits for the WMT event, the skb is being cloned
2649 * and being processed the events from there then.
2650 */
2651 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2652 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2653 if (!data->evt_skb) {
2654 kfree_skb(skb);
2655 kfree(objp: urb->setup_packet);
2656 return;
2657 }
2658 }
2659
2660 err = hci_recv_frame(hdev, skb);
2661 if (err < 0) {
2662 kfree_skb(skb: data->evt_skb);
2663 data->evt_skb = NULL;
2664 kfree(objp: urb->setup_packet);
2665 return;
2666 }
2667
2668 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2669 addr: &data->flags)) {
2670 /* Barrier to sync with other CPUs */
2671 smp_mb__after_atomic();
2672 wake_up_bit(word: &data->flags,
2673 BTUSB_TX_WAIT_VND_EVT);
2674 }
2675 kfree(objp: urb->setup_packet);
2676 return;
2677 } else if (urb->status == -ENOENT) {
2678 /* Avoid suspend failed when usb_kill_urb */
2679 return;
2680 }
2681
2682 usb_mark_last_busy(udev: data->udev);
2683
2684 /* The URB complete handler is still called with urb->actual_length = 0
2685 * when the event is not available, so we should keep re-submitting
2686 * URB until WMT event returns, Also, It's necessary to wait some time
2687 * between the two consecutive control URBs to relax the target device
2688 * to generate the event. Otherwise, the WMT event cannot return from
2689 * the device successfully.
2690 */
2691 udelay(500);
2692
2693 usb_anchor_urb(urb, anchor: &data->ctrl_anchor);
2694 err = usb_submit_urb(urb, GFP_ATOMIC);
2695 if (err < 0) {
2696 kfree(objp: urb->setup_packet);
2697 /* -EPERM: urb is being killed;
2698 * -ENODEV: device got disconnected
2699 */
2700 if (err != -EPERM && err != -ENODEV)
2701 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2702 urb, -err);
2703 usb_unanchor_urb(urb);
2704 }
2705}
2706
2707static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2708{
2709 struct btusb_data *data = hci_get_drvdata(hdev);
2710 struct usb_ctrlrequest *dr;
2711 unsigned char *buf;
2712 int err, size = 64;
2713 unsigned int pipe;
2714 struct urb *urb;
2715
2716 urb = usb_alloc_urb(iso_packets: 0, GFP_KERNEL);
2717 if (!urb)
2718 return -ENOMEM;
2719
2720 dr = kmalloc(size: sizeof(*dr), GFP_KERNEL);
2721 if (!dr) {
2722 usb_free_urb(urb);
2723 return -ENOMEM;
2724 }
2725
2726 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2727 dr->bRequest = 1;
2728 dr->wIndex = cpu_to_le16(0);
2729 dr->wValue = cpu_to_le16(48);
2730 dr->wLength = cpu_to_le16(size);
2731
2732 buf = kmalloc(size, GFP_KERNEL);
2733 if (!buf) {
2734 kfree(objp: dr);
2735 usb_free_urb(urb);
2736 return -ENOMEM;
2737 }
2738
2739 pipe = usb_rcvctrlpipe(data->udev, 0);
2740
2741 usb_fill_control_urb(urb, dev: data->udev, pipe, setup_packet: (void *)dr,
2742 transfer_buffer: buf, buffer_length: size, complete_fn: btusb_mtk_wmt_recv, context: hdev);
2743
2744 urb->transfer_flags |= URB_FREE_BUFFER;
2745
2746 usb_anchor_urb(urb, anchor: &data->ctrl_anchor);
2747 err = usb_submit_urb(urb, GFP_KERNEL);
2748 if (err < 0) {
2749 if (err != -EPERM && err != -ENODEV)
2750 bt_dev_err(hdev, "urb %p submission failed (%d)",
2751 urb, -err);
2752 usb_unanchor_urb(urb);
2753 }
2754
2755 usb_free_urb(urb);
2756
2757 return err;
2758}
2759
2760static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2761 struct btmtk_hci_wmt_params *wmt_params)
2762{
2763 struct btusb_data *data = hci_get_drvdata(hdev);
2764 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2765 u32 hlen, status = BTMTK_WMT_INVALID;
2766 struct btmtk_hci_wmt_evt *wmt_evt;
2767 struct btmtk_hci_wmt_cmd *wc;
2768 struct btmtk_wmt_hdr *hdr;
2769 int err;
2770
2771 /* Send the WMT command and wait until the WMT event returns */
2772 hlen = sizeof(*hdr) + wmt_params->dlen;
2773 if (hlen > 255)
2774 return -EINVAL;
2775
2776 wc = kzalloc(size: hlen, GFP_KERNEL);
2777 if (!wc)
2778 return -ENOMEM;
2779
2780 hdr = &wc->hdr;
2781 hdr->dir = 1;
2782 hdr->op = wmt_params->op;
2783 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2784 hdr->flag = wmt_params->flag;
2785 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2786
2787 set_bit(BTUSB_TX_WAIT_VND_EVT, addr: &data->flags);
2788
2789 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2790 * it needs constantly polling control pipe until the host received the
2791 * WMT event, thus, we should require to specifically acquire PM counter
2792 * on the USB to prevent the interface from entering auto suspended
2793 * while WMT cmd/event in progress.
2794 */
2795 err = usb_autopm_get_interface(intf: data->intf);
2796 if (err < 0)
2797 goto err_free_wc;
2798
2799 err = __hci_cmd_send(hdev, opcode: 0xfc6f, plen: hlen, param: wc);
2800
2801 if (err < 0) {
2802 clear_bit(BTUSB_TX_WAIT_VND_EVT, addr: &data->flags);
2803 usb_autopm_put_interface(intf: data->intf);
2804 goto err_free_wc;
2805 }
2806
2807 /* Submit control IN URB on demand to process the WMT event */
2808 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2809
2810 usb_autopm_put_interface(intf: data->intf);
2811
2812 if (err < 0)
2813 goto err_free_wc;
2814
2815 /* The vendor specific WMT commands are all answered by a vendor
2816 * specific event and will have the Command Status or Command
2817 * Complete as with usual HCI command flow control.
2818 *
2819 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2820 * state to be cleared. The driver specific event receive routine
2821 * will clear that state and with that indicate completion of the
2822 * WMT command.
2823 */
2824 err = wait_on_bit_timeout(word: &data->flags, BTUSB_TX_WAIT_VND_EVT,
2825 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2826 if (err == -EINTR) {
2827 bt_dev_err(hdev, "Execution of wmt command interrupted");
2828 clear_bit(BTUSB_TX_WAIT_VND_EVT, addr: &data->flags);
2829 goto err_free_wc;
2830 }
2831
2832 if (err) {
2833 bt_dev_err(hdev, "Execution of wmt command timed out");
2834 clear_bit(BTUSB_TX_WAIT_VND_EVT, addr: &data->flags);
2835 err = -ETIMEDOUT;
2836 goto err_free_wc;
2837 }
2838
2839 if (data->evt_skb == NULL)
2840 goto err_free_wc;
2841
2842 /* Parse and handle the return WMT event */
2843 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2844 if (wmt_evt->whdr.op != hdr->op) {
2845 bt_dev_err(hdev, "Wrong op received %d expected %d",
2846 wmt_evt->whdr.op, hdr->op);
2847 err = -EIO;
2848 goto err_free_skb;
2849 }
2850
2851 switch (wmt_evt->whdr.op) {
2852 case BTMTK_WMT_SEMAPHORE:
2853 if (wmt_evt->whdr.flag == 2)
2854 status = BTMTK_WMT_PATCH_UNDONE;
2855 else
2856 status = BTMTK_WMT_PATCH_DONE;
2857 break;
2858 case BTMTK_WMT_FUNC_CTRL:
2859 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2860 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2861 status = BTMTK_WMT_ON_DONE;
2862 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2863 status = BTMTK_WMT_ON_PROGRESS;
2864 else
2865 status = BTMTK_WMT_ON_UNDONE;
2866 break;
2867 case BTMTK_WMT_PATCH_DWNLD:
2868 if (wmt_evt->whdr.flag == 2)
2869 status = BTMTK_WMT_PATCH_DONE;
2870 else if (wmt_evt->whdr.flag == 1)
2871 status = BTMTK_WMT_PATCH_PROGRESS;
2872 else
2873 status = BTMTK_WMT_PATCH_UNDONE;
2874 break;
2875 }
2876
2877 if (wmt_params->status)
2878 *wmt_params->status = status;
2879
2880err_free_skb:
2881 kfree_skb(skb: data->evt_skb);
2882 data->evt_skb = NULL;
2883err_free_wc:
2884 kfree(objp: wc);
2885 return err;
2886}
2887
2888static int btusb_mtk_func_query(struct hci_dev *hdev)
2889{
2890 struct btmtk_hci_wmt_params wmt_params;
2891 int status, err;
2892 u8 param = 0;
2893
2894 /* Query whether the function is enabled */
2895 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2896 wmt_params.flag = 4;
2897 wmt_params.dlen = sizeof(param);
2898 wmt_params.data = &param;
2899 wmt_params.status = &status;
2900
2901 err = btusb_mtk_hci_wmt_sync(hdev, wmt_params: &wmt_params);
2902 if (err < 0) {
2903 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2904 return err;
2905 }
2906
2907 return status;
2908}
2909
2910static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2911{
2912 struct hci_dev *hdev = data->hdev;
2913 int pipe, err;
2914 void *buf;
2915
2916 buf = kzalloc(size: 4, GFP_KERNEL);
2917 if (!buf)
2918 return -ENOMEM;
2919
2920 put_unaligned_le32(val, p: buf);
2921
2922 pipe = usb_sndctrlpipe(data->udev, 0);
2923 err = usb_control_msg(dev: data->udev, pipe, request: 0x02,
2924 requesttype: 0x5E,
2925 value: reg >> 16, index: reg & 0xffff,
2926 data: buf, size: 4, USB_CTRL_SET_TIMEOUT);
2927 if (err < 0) {
2928 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2929 goto err_free_buf;
2930 }
2931
2932err_free_buf:
2933 kfree(objp: buf);
2934
2935 return err;
2936}
2937
2938static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2939{
2940 struct hci_dev *hdev = data->hdev;
2941 int pipe, err;
2942 void *buf;
2943
2944 buf = kzalloc(size: 4, GFP_KERNEL);
2945 if (!buf)
2946 return -ENOMEM;
2947
2948 pipe = usb_rcvctrlpipe(data->udev, 0);
2949 err = usb_control_msg(dev: data->udev, pipe, request: 0x01,
2950 requesttype: 0xDE,
2951 value: reg >> 16, index: reg & 0xffff,
2952 data: buf, size: 4, USB_CTRL_SET_TIMEOUT);
2953 if (err < 0) {
2954 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2955 goto err_free_buf;
2956 }
2957
2958 *val = get_unaligned_le32(p: buf);
2959 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2960
2961err_free_buf:
2962 kfree(objp: buf);
2963
2964 return err;
2965}
2966
2967static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2968{
2969 int pipe, err, size = sizeof(u32);
2970 void *buf;
2971
2972 buf = kzalloc(size, GFP_KERNEL);
2973 if (!buf)
2974 return -ENOMEM;
2975
2976 pipe = usb_rcvctrlpipe(data->udev, 0);
2977 err = usb_control_msg(dev: data->udev, pipe, request: 0x63,
2978 USB_TYPE_VENDOR | USB_DIR_IN,
2979 value: reg >> 16, index: reg & 0xffff,
2980 data: buf, size, USB_CTRL_SET_TIMEOUT);
2981 if (err < 0)
2982 goto err_free_buf;
2983
2984 *val = get_unaligned_le32(p: buf);
2985
2986err_free_buf:
2987 kfree(objp: buf);
2988
2989 return err;
2990}
2991
2992static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2993{
2994 return btusb_mtk_reg_read(data, reg, val: id);
2995}
2996
2997static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
2998{
2999 struct btusb_data *data = hci_get_drvdata(hdev);
3000 u32 val = 0;
3001
3002 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, val: &val);
3003
3004 return val & MTK_BT_RST_DONE;
3005}
3006
3007static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3008{
3009 struct btusb_data *data = hci_get_drvdata(hdev);
3010 struct btmediatek_data *mediatek;
3011 u32 val;
3012 int err;
3013
3014 /* It's MediaTek specific bluetooth reset mechanism via USB */
3015 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, addr: &data->flags)) {
3016 bt_dev_err(hdev, "last reset failed? Not resetting again");
3017 return -EBUSY;
3018 }
3019
3020 err = usb_autopm_get_interface(intf: data->intf);
3021 if (err < 0)
3022 return err;
3023
3024 btusb_stop_traffic(data);
3025 usb_kill_anchored_urbs(anchor: &data->tx_anchor);
3026 mediatek = hci_get_priv(hdev);
3027
3028 if (mediatek->dev_id == 0x7925) {
3029 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, val: &val);
3030 val |= (1 << 5);
3031 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3032 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, val: &val);
3033 val &= 0xFFFF00FF;
3034 val |= (1 << 13);
3035 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3036 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, val: 0x00010001);
3037 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, val: &val);
3038 val |= (1 << 0);
3039 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3040 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, val: 0x000000FF);
3041 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, val: &val);
3042 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, val: 0x000000FF);
3043 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, val: &val);
3044 msleep(msecs: 100);
3045 } else {
3046 /* It's Device EndPoint Reset Option Register */
3047 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3048 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3049 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, val: &val);
3050
3051 /* Reset the bluetooth chip via USB interface. */
3052 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val: 1);
3053 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, val: 0x000000FF);
3054 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, val: &val);
3055 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, val: 0x000000FF);
3056 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, val: &val);
3057 /* MT7921 need to delay 20ms between toggle reset bit */
3058 msleep(msecs: 20);
3059 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val: 0);
3060 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, val: &val);
3061 }
3062
3063 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3064 val & MTK_BT_RST_DONE, 20000, 1000000);
3065 if (err < 0)
3066 bt_dev_err(hdev, "Reset timeout");
3067
3068 btusb_mtk_id_get(data, reg: 0x70010200, id: &val);
3069 if (!val)
3070 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3071
3072 usb_queue_reset_device(dev: data->intf);
3073
3074 clear_bit(BTUSB_HW_RESET_ACTIVE, addr: &data->flags);
3075
3076 return err;
3077}
3078
3079static int btusb_mtk_setup(struct hci_dev *hdev)
3080{
3081 struct btusb_data *data = hci_get_drvdata(hdev);
3082 struct btmtk_hci_wmt_params wmt_params;
3083 ktime_t calltime, delta, rettime;
3084 struct btmtk_tci_sleep tci_sleep;
3085 unsigned long long duration;
3086 struct sk_buff *skb;
3087 const char *fwname;
3088 int err, status;
3089 u32 dev_id = 0;
3090 char fw_bin_name[64];
3091 u32 fw_version = 0, fw_flavor = 0;
3092 u8 param;
3093 struct btmediatek_data *mediatek;
3094
3095 calltime = ktime_get();
3096
3097 err = btusb_mtk_id_get(data, reg: 0x80000008, id: &dev_id);
3098 if (err < 0) {
3099 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3100 return err;
3101 }
3102
3103 if (!dev_id || dev_id != 0x7663) {
3104 err = btusb_mtk_id_get(data, reg: 0x70010200, id: &dev_id);
3105 if (err < 0) {
3106 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3107 return err;
3108 }
3109 err = btusb_mtk_id_get(data, reg: 0x80021004, id: &fw_version);
3110 if (err < 0) {
3111 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3112 return err;
3113 }
3114 err = btusb_mtk_id_get(data, reg: 0x70010020, id: &fw_flavor);
3115 if (err < 0) {
3116 bt_dev_err(hdev, "Failed to get fw flavor (%d)", err);
3117 return err;
3118 }
3119 }
3120
3121 mediatek = hci_get_priv(hdev);
3122 mediatek->dev_id = dev_id;
3123 mediatek->reset_sync = btusb_mtk_reset;
3124
3125 err = btmtk_register_coredump(hdev, name: btusb_driver.name, fw_version);
3126 if (err < 0)
3127 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3128
3129 switch (dev_id) {
3130 case 0x7663:
3131 fwname = FIRMWARE_MT7663;
3132 break;
3133 case 0x7668:
3134 fwname = FIRMWARE_MT7668;
3135 break;
3136 case 0x7922:
3137 case 0x7961:
3138 case 0x7925:
3139 if (dev_id == 0x7925)
3140 snprintf(buf: fw_bin_name, size: sizeof(fw_bin_name),
3141 fmt: "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3142 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3143 else if (dev_id == 0x7961 && fw_flavor)
3144 snprintf(buf: fw_bin_name, size: sizeof(fw_bin_name),
3145 fmt: "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
3146 dev_id & 0xffff, (fw_version & 0xff) + 1);
3147 else
3148 snprintf(buf: fw_bin_name, size: sizeof(fw_bin_name),
3149 fmt: "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3150 dev_id & 0xffff, (fw_version & 0xff) + 1);
3151
3152 err = btmtk_setup_firmware_79xx(hdev, fwname: fw_bin_name,
3153 wmt_cmd_sync: btusb_mtk_hci_wmt_sync);
3154 if (err < 0) {
3155 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3156 return err;
3157 }
3158
3159 /* It's Device EndPoint Reset Option Register */
3160 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3161
3162 /* Enable Bluetooth protocol */
3163 param = 1;
3164 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3165 wmt_params.flag = 0;
3166 wmt_params.dlen = sizeof(param);
3167 wmt_params.data = &param;
3168 wmt_params.status = NULL;
3169
3170 err = btusb_mtk_hci_wmt_sync(hdev, wmt_params: &wmt_params);
3171 if (err < 0) {
3172 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3173 return err;
3174 }
3175
3176 hci_set_msft_opcode(hdev, opcode: 0xFD30);
3177 hci_set_aosp_capable(hdev);
3178 goto done;
3179 default:
3180 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3181 dev_id);
3182 return -ENODEV;
3183 }
3184
3185 /* Query whether the firmware is already download */
3186 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3187 wmt_params.flag = 1;
3188 wmt_params.dlen = 0;
3189 wmt_params.data = NULL;
3190 wmt_params.status = &status;
3191
3192 err = btusb_mtk_hci_wmt_sync(hdev, wmt_params: &wmt_params);
3193 if (err < 0) {
3194 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3195 return err;
3196 }
3197
3198 if (status == BTMTK_WMT_PATCH_DONE) {
3199 bt_dev_info(hdev, "firmware already downloaded");
3200 goto ignore_setup_fw;
3201 }
3202
3203 /* Setup a firmware which the device definitely requires */
3204 err = btmtk_setup_firmware(hdev, fwname,
3205 wmt_cmd_sync: btusb_mtk_hci_wmt_sync);
3206 if (err < 0)
3207 return err;
3208
3209ignore_setup_fw:
3210 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3211 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3212 2000, 5000000);
3213 /* -ETIMEDOUT happens */
3214 if (err < 0)
3215 return err;
3216
3217 /* The other errors happen in btusb_mtk_func_query */
3218 if (status < 0)
3219 return status;
3220
3221 if (status == BTMTK_WMT_ON_DONE) {
3222 bt_dev_info(hdev, "function already on");
3223 goto ignore_func_on;
3224 }
3225
3226 /* Enable Bluetooth protocol */
3227 param = 1;
3228 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3229 wmt_params.flag = 0;
3230 wmt_params.dlen = sizeof(param);
3231 wmt_params.data = &param;
3232 wmt_params.status = NULL;
3233
3234 err = btusb_mtk_hci_wmt_sync(hdev, wmt_params: &wmt_params);
3235 if (err < 0) {
3236 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3237 return err;
3238 }
3239
3240ignore_func_on:
3241 /* Apply the low power environment setup */
3242 tci_sleep.mode = 0x5;
3243 tci_sleep.duration = cpu_to_le16(0x640);
3244 tci_sleep.host_duration = cpu_to_le16(0x640);
3245 tci_sleep.host_wakeup_pin = 0;
3246 tci_sleep.time_compensation = 0;
3247
3248 skb = __hci_cmd_sync(hdev, opcode: 0xfc7a, plen: sizeof(tci_sleep), param: &tci_sleep,
3249 HCI_INIT_TIMEOUT);
3250 if (IS_ERR(ptr: skb)) {
3251 err = PTR_ERR(ptr: skb);
3252 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3253 return err;
3254 }
3255 kfree_skb(skb);
3256
3257done:
3258 rettime = ktime_get();
3259 delta = ktime_sub(rettime, calltime);
3260 duration = (unsigned long long)ktime_to_ns(kt: delta) >> 10;
3261
3262 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3263
3264 return 0;
3265}
3266
3267static int btusb_mtk_shutdown(struct hci_dev *hdev)
3268{
3269 struct btmtk_hci_wmt_params wmt_params;
3270 u8 param = 0;
3271 int err;
3272
3273 /* Disable the device */
3274 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3275 wmt_params.flag = 0;
3276 wmt_params.dlen = sizeof(param);
3277 wmt_params.data = &param;
3278 wmt_params.status = NULL;
3279
3280 err = btusb_mtk_hci_wmt_sync(hdev, wmt_params: &wmt_params);
3281 if (err < 0) {
3282 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3283 return err;
3284 }
3285
3286 return 0;
3287}
3288
3289static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3290{
3291 struct btusb_data *data = hci_get_drvdata(hdev);
3292 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3293
3294 switch (handle) {
3295 case 0xfc6f: /* Firmware dump from device */
3296 /* When the firmware hangs, the device can no longer
3297 * suspend and thus disable auto-suspend.
3298 */
3299 usb_disable_autosuspend(udev: data->udev);
3300
3301 /* We need to forward the diagnostic packet to userspace daemon
3302 * for backward compatibility, so we have to clone the packet
3303 * extraly for the in-kernel coredump support.
3304 */
3305 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3306 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3307
3308 if (skb_cd)
3309 btmtk_process_coredump(hdev, skb: skb_cd);
3310 }
3311
3312 fallthrough;
3313 case 0x05ff: /* Firmware debug logging 1 */
3314 case 0x05fe: /* Firmware debug logging 2 */
3315 return hci_recv_diag(hdev, skb);
3316 }
3317
3318 return hci_recv_frame(hdev, skb);
3319}
3320
3321#ifdef CONFIG_PM
3322/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3323static int marvell_config_oob_wake(struct hci_dev *hdev)
3324{
3325 struct sk_buff *skb;
3326 struct btusb_data *data = hci_get_drvdata(hdev);
3327 struct device *dev = &data->udev->dev;
3328 u16 pin, gap, opcode;
3329 int ret;
3330 u8 cmd[5];
3331
3332 /* Move on if no wakeup pin specified */
3333 if (of_property_read_u16(np: dev->of_node, propname: "marvell,wakeup-pin", out_value: &pin) ||
3334 of_property_read_u16(np: dev->of_node, propname: "marvell,wakeup-gap-ms", out_value: &gap))
3335 return 0;
3336
3337 /* Vendor specific command to configure a GPIO as wake-up pin */
3338 opcode = hci_opcode_pack(0x3F, 0x59);
3339 cmd[0] = opcode & 0xFF;
3340 cmd[1] = opcode >> 8;
3341 cmd[2] = 2; /* length of parameters that follow */
3342 cmd[3] = pin;
3343 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3344
3345 skb = bt_skb_alloc(len: sizeof(cmd), GFP_KERNEL);
3346 if (!skb) {
3347 bt_dev_err(hdev, "%s: No memory", __func__);
3348 return -ENOMEM;
3349 }
3350
3351 skb_put_data(skb, data: cmd, len: sizeof(cmd));
3352 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3353
3354 ret = btusb_send_frame(hdev, skb);
3355 if (ret) {
3356 bt_dev_err(hdev, "%s: configuration failed", __func__);
3357 kfree_skb(skb);
3358 return ret;
3359 }
3360
3361 return 0;
3362}
3363#endif
3364
3365static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3366 const bdaddr_t *bdaddr)
3367{
3368 struct sk_buff *skb;
3369 u8 buf[8];
3370 long ret;
3371
3372 buf[0] = 0xfe;
3373 buf[1] = sizeof(bdaddr_t);
3374 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3375
3376 skb = __hci_cmd_sync(hdev, opcode: 0xfc22, plen: sizeof(buf), param: buf, HCI_INIT_TIMEOUT);
3377 if (IS_ERR(ptr: skb)) {
3378 ret = PTR_ERR(ptr: skb);
3379 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3380 ret);
3381 return ret;
3382 }
3383 kfree_skb(skb);
3384
3385 return 0;
3386}
3387
3388static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3389 const bdaddr_t *bdaddr)
3390{
3391 struct sk_buff *skb;
3392 u8 buf[10];
3393 long ret;
3394
3395 buf[0] = 0x01;
3396 buf[1] = 0x01;
3397 buf[2] = 0x00;
3398 buf[3] = sizeof(bdaddr_t);
3399 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3400
3401 skb = __hci_cmd_sync(hdev, opcode: 0xfc0b, plen: sizeof(buf), param: buf, HCI_INIT_TIMEOUT);
3402 if (IS_ERR(ptr: skb)) {
3403 ret = PTR_ERR(ptr: skb);
3404 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3405 return ret;
3406 }
3407 kfree_skb(skb);
3408
3409 return 0;
3410}
3411
3412static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3413 const bdaddr_t *bdaddr)
3414{
3415 struct sk_buff *skb;
3416 u8 buf[6];
3417 long ret;
3418
3419 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3420
3421 skb = __hci_cmd_sync_ev(hdev, opcode: 0xfc14, plen: sizeof(buf), param: buf,
3422 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3423 if (IS_ERR(ptr: skb)) {
3424 ret = PTR_ERR(ptr: skb);
3425 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3426 return ret;
3427 }
3428 kfree_skb(skb);
3429
3430 return 0;
3431}
3432
3433#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3434#define QCA_MEMDUMP_SIZE_MAX 0x100000
3435#define QCA_MEMDUMP_VSE_CLASS 0x01
3436#define QCA_MEMDUMP_MSG_TYPE 0x08
3437#define QCA_MEMDUMP_PKT_SIZE 248
3438#define QCA_LAST_SEQUENCE_NUM 0xffff
3439
3440struct qca_dump_hdr {
3441 u8 vse_class;
3442 u8 msg_type;
3443 __le16 seqno;
3444 u8 reserved;
3445 union {
3446 u8 data[0];
3447 struct {
3448 __le32 ram_dump_size;
3449 u8 data0[0];
3450 } __packed;
3451 };
3452} __packed;
3453
3454
3455static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3456{
3457 char buf[128];
3458 struct btusb_data *btdata = hci_get_drvdata(hdev);
3459
3460 snprintf(buf, size: sizeof(buf), fmt: "Controller Name: 0x%x\n",
3461 btdata->qca_dump.controller_id);
3462 skb_put_data(skb, data: buf, strlen(buf));
3463
3464 snprintf(buf, size: sizeof(buf), fmt: "Firmware Version: 0x%x\n",
3465 btdata->qca_dump.fw_version);
3466 skb_put_data(skb, data: buf, strlen(buf));
3467
3468 snprintf(buf, size: sizeof(buf), fmt: "Driver: %s\nVendor: qca\n",
3469 btusb_driver.name);
3470 skb_put_data(skb, data: buf, strlen(buf));
3471
3472 snprintf(buf, size: sizeof(buf), fmt: "VID: 0x%x\nPID:0x%x\n",
3473 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3474 skb_put_data(skb, data: buf, strlen(buf));
3475
3476 snprintf(buf, size: sizeof(buf), fmt: "Lmp Subversion: 0x%x\n",
3477 hdev->lmp_subver);
3478 skb_put_data(skb, data: buf, strlen(buf));
3479}
3480
3481static void btusb_coredump_qca(struct hci_dev *hdev)
3482{
3483 static const u8 param[] = { 0x26 };
3484 struct sk_buff *skb;
3485
3486 skb = __hci_cmd_sync(hdev, opcode: 0xfc0c, plen: 1, param, HCI_CMD_TIMEOUT);
3487 if (IS_ERR(ptr: skb))
3488 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3489 kfree_skb(skb);
3490}
3491
3492/*
3493 * ==0: not a dump pkt.
3494 * < 0: fails to handle a dump pkt
3495 * > 0: otherwise.
3496 */
3497static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3498{
3499 int ret = 1;
3500 u8 pkt_type;
3501 u8 *sk_ptr;
3502 unsigned int sk_len;
3503 u16 seqno;
3504 u32 dump_size;
3505
3506 struct hci_event_hdr *event_hdr;
3507 struct hci_acl_hdr *acl_hdr;
3508 struct qca_dump_hdr *dump_hdr;
3509 struct btusb_data *btdata = hci_get_drvdata(hdev);
3510 struct usb_device *udev = btdata->udev;
3511
3512 pkt_type = hci_skb_pkt_type(skb);
3513 sk_ptr = skb->data;
3514 sk_len = skb->len;
3515
3516 if (pkt_type == HCI_ACLDATA_PKT) {
3517 acl_hdr = hci_acl_hdr(skb);
3518 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3519 return 0;
3520 sk_ptr += HCI_ACL_HDR_SIZE;
3521 sk_len -= HCI_ACL_HDR_SIZE;
3522 event_hdr = (struct hci_event_hdr *)sk_ptr;
3523 } else {
3524 event_hdr = hci_event_hdr(skb);
3525 }
3526
3527 if ((event_hdr->evt != HCI_VENDOR_PKT)
3528 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3529 return 0;
3530
3531 sk_ptr += HCI_EVENT_HDR_SIZE;
3532 sk_len -= HCI_EVENT_HDR_SIZE;
3533
3534 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3535 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3536 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3537 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3538 return 0;
3539
3540 /*it is dump pkt now*/
3541 seqno = le16_to_cpu(dump_hdr->seqno);
3542 if (seqno == 0) {
3543 set_bit(BTUSB_HW_SSR_ACTIVE, addr: &btdata->flags);
3544 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3545 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3546 ret = -EILSEQ;
3547 bt_dev_err(hdev, "Invalid memdump size(%u)",
3548 dump_size);
3549 goto out;
3550 }
3551
3552 ret = hci_devcd_init(hdev, dump_size);
3553 if (ret < 0) {
3554 bt_dev_err(hdev, "memdump init error(%d)", ret);
3555 goto out;
3556 }
3557
3558 btdata->qca_dump.ram_dump_size = dump_size;
3559 btdata->qca_dump.ram_dump_seqno = 0;
3560 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3561 sk_len -= offsetof(struct qca_dump_hdr, data0);
3562
3563 usb_disable_autosuspend(udev);
3564 bt_dev_info(hdev, "%s memdump size(%u)\n",
3565 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3566 dump_size);
3567 } else {
3568 sk_ptr += offsetof(struct qca_dump_hdr, data);
3569 sk_len -= offsetof(struct qca_dump_hdr, data);
3570 }
3571
3572 if (!btdata->qca_dump.ram_dump_size) {
3573 ret = -EINVAL;
3574 bt_dev_err(hdev, "memdump is not active");
3575 goto out;
3576 }
3577
3578 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3579 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3580 hci_devcd_append_pattern(hdev, pattern: 0x0, len: dump_size);
3581 bt_dev_err(hdev,
3582 "expected memdump seqno(%u) is not received(%u)\n",
3583 btdata->qca_dump.ram_dump_seqno, seqno);
3584 btdata->qca_dump.ram_dump_seqno = seqno;
3585 kfree_skb(skb);
3586 return ret;
3587 }
3588
3589 skb_pull(skb, len: skb->len - sk_len);
3590 hci_devcd_append(hdev, skb);
3591 btdata->qca_dump.ram_dump_seqno++;
3592 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3593 bt_dev_info(hdev,
3594 "memdump done: pkts(%u), total(%u)\n",
3595 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3596
3597 hci_devcd_complete(hdev);
3598 goto out;
3599 }
3600 return ret;
3601
3602out:
3603 if (btdata->qca_dump.ram_dump_size)
3604 usb_enable_autosuspend(udev);
3605 btdata->qca_dump.ram_dump_size = 0;
3606 btdata->qca_dump.ram_dump_seqno = 0;
3607 clear_bit(BTUSB_HW_SSR_ACTIVE, addr: &btdata->flags);
3608
3609 if (ret < 0)
3610 kfree_skb(skb);
3611 return ret;
3612}
3613
3614static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3615{
3616 if (handle_dump_pkt_qca(hdev, skb))
3617 return 0;
3618 return hci_recv_frame(hdev, skb);
3619}
3620
3621static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3622{
3623 if (handle_dump_pkt_qca(hdev, skb))
3624 return 0;
3625 return hci_recv_frame(hdev, skb);
3626}
3627
3628
3629#define QCA_DFU_PACKET_LEN 4096
3630
3631#define QCA_GET_TARGET_VERSION 0x09
3632#define QCA_CHECK_STATUS 0x05
3633#define QCA_DFU_DOWNLOAD 0x01
3634
3635#define QCA_SYSCFG_UPDATED 0x40
3636#define QCA_PATCH_UPDATED 0x80
3637#define QCA_DFU_TIMEOUT 3000
3638#define QCA_FLAG_MULTI_NVM 0x80
3639#define QCA_BT_RESET_WAIT_MS 100
3640
3641#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3642#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3643
3644struct qca_version {
3645 __le32 rom_version;
3646 __le32 patch_version;
3647 __le32 ram_version;
3648 __u8 chip_id;
3649 __u8 platform_id;
3650 __le16 flag;
3651 __u8 reserved[4];
3652} __packed;
3653
3654struct qca_rampatch_version {
3655 __le16 rom_version_high;
3656 __le16 rom_version_low;
3657 __le16 patch_version;
3658} __packed;
3659
3660struct qca_device_info {
3661 u32 rom_version;
3662 u8 rampatch_hdr; /* length of header in rampatch */
3663 u8 nvm_hdr; /* length of header in NVM */
3664 u8 ver_offset; /* offset of version structure in rampatch */
3665};
3666
3667static const struct qca_device_info qca_devices_table[] = {
3668 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3669 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3670 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3671 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3672 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3673 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3674 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3675 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3676 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3677 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3678};
3679
3680static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3681 void *data, u16 size)
3682{
3683 int pipe, err;
3684 u8 *buf;
3685
3686 buf = kmalloc(size, GFP_KERNEL);
3687 if (!buf)
3688 return -ENOMEM;
3689
3690 /* Found some of USB hosts have IOT issues with ours so that we should
3691 * not wait until HCI layer is ready.
3692 */
3693 pipe = usb_rcvctrlpipe(udev, 0);
3694 err = usb_control_msg(dev: udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3695 value: 0, index: 0, data: buf, size, USB_CTRL_SET_TIMEOUT);
3696 if (err < 0) {
3697 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3698 goto done;
3699 }
3700
3701 memcpy(data, buf, size);
3702
3703done:
3704 kfree(objp: buf);
3705
3706 return err;
3707}
3708
3709static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3710 const struct firmware *firmware,
3711 size_t hdr_size)
3712{
3713 struct btusb_data *btdata = hci_get_drvdata(hdev);
3714 struct usb_device *udev = btdata->udev;
3715 size_t count, size, sent = 0;
3716 int pipe, len, err;
3717 u8 *buf;
3718
3719 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3720 if (!buf)
3721 return -ENOMEM;
3722
3723 count = firmware->size;
3724
3725 size = min_t(size_t, count, hdr_size);
3726 memcpy(buf, firmware->data, size);
3727
3728 /* USB patches should go down to controller through USB path
3729 * because binary format fits to go down through USB channel.
3730 * USB control path is for patching headers and USB bulk is for
3731 * patch body.
3732 */
3733 pipe = usb_sndctrlpipe(udev, 0);
3734 err = usb_control_msg(dev: udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3735 value: 0, index: 0, data: buf, size, USB_CTRL_SET_TIMEOUT);
3736 if (err < 0) {
3737 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3738 goto done;
3739 }
3740
3741 sent += size;
3742 count -= size;
3743
3744 /* ep2 need time to switch from function acl to function dfu,
3745 * so we add 20ms delay here.
3746 */
3747 msleep(msecs: 20);
3748
3749 while (count) {
3750 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3751
3752 memcpy(buf, firmware->data + sent, size);
3753
3754 pipe = usb_sndbulkpipe(udev, 0x02);
3755 err = usb_bulk_msg(usb_dev: udev, pipe, data: buf, len: size, actual_length: &len,
3756 QCA_DFU_TIMEOUT);
3757 if (err < 0) {
3758 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3759 sent, firmware->size, err);
3760 break;
3761 }
3762
3763 if (size != len) {
3764 bt_dev_err(hdev, "Failed to get bulk buffer");
3765 err = -EILSEQ;
3766 break;
3767 }
3768
3769 sent += size;
3770 count -= size;
3771 }
3772
3773done:
3774 kfree(objp: buf);
3775 return err;
3776}
3777
3778static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3779 struct qca_version *ver,
3780 const struct qca_device_info *info)
3781{
3782 struct qca_rampatch_version *rver;
3783 const struct firmware *fw;
3784 u32 ver_rom, ver_patch, rver_rom;
3785 u16 rver_rom_low, rver_rom_high, rver_patch;
3786 char fwname[64];
3787 int err;
3788
3789 ver_rom = le32_to_cpu(ver->rom_version);
3790 ver_patch = le32_to_cpu(ver->patch_version);
3791
3792 snprintf(buf: fwname, size: sizeof(fwname), fmt: "qca/rampatch_usb_%08x.bin", ver_rom);
3793
3794 err = request_firmware(fw: &fw, name: fwname, device: &hdev->dev);
3795 if (err) {
3796 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3797 fwname, err);
3798 return err;
3799 }
3800
3801 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3802
3803 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3804 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3805 rver_patch = le16_to_cpu(rver->patch_version);
3806
3807 if (ver_rom & ~0xffffU) {
3808 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3809 rver_rom = rver_rom_high << 16 | rver_rom_low;
3810 } else {
3811 rver_rom = rver_rom_low;
3812 }
3813
3814 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3815 "firmware rome 0x%x build 0x%x",
3816 rver_rom, rver_patch, ver_rom, ver_patch);
3817
3818 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3819 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3820 err = -EINVAL;
3821 goto done;
3822 }
3823
3824 err = btusb_setup_qca_download_fw(hdev, firmware: fw, hdr_size: info->rampatch_hdr);
3825
3826done:
3827 release_firmware(fw);
3828
3829 return err;
3830}
3831
3832static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3833 const struct qca_version *ver)
3834{
3835 u32 rom_version = le32_to_cpu(ver->rom_version);
3836 u16 flag = le16_to_cpu(ver->flag);
3837
3838 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3839 /* The board_id should be split into two bytes
3840 * The 1st byte is chip ID, and the 2nd byte is platform ID
3841 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3842 * we have several platforms, and platform IDs are continuously added
3843 * Platform ID:
3844 * 0x00 is for Mobile
3845 * 0x01 is for X86
3846 * 0x02 is for Automotive
3847 * 0x03 is for Consumer electronic
3848 */
3849 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3850 const char *variant;
3851
3852 switch (le32_to_cpu(ver->ram_version)) {
3853 case WCN6855_2_0_RAM_VERSION_GF:
3854 case WCN6855_2_1_RAM_VERSION_GF:
3855 variant = "_gf";
3856 break;
3857 default:
3858 variant = "";
3859 break;
3860 }
3861
3862 if (board_id == 0) {
3863 snprintf(buf: fwname, size: max_size, fmt: "qca/nvm_usb_%08x%s.bin",
3864 rom_version, variant);
3865 } else {
3866 snprintf(buf: fwname, size: max_size, fmt: "qca/nvm_usb_%08x%s_%04x.bin",
3867 rom_version, variant, board_id);
3868 }
3869 } else {
3870 snprintf(buf: fwname, size: max_size, fmt: "qca/nvm_usb_%08x.bin",
3871 rom_version);
3872 }
3873
3874}
3875
3876static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3877 struct qca_version *ver,
3878 const struct qca_device_info *info)
3879{
3880 const struct firmware *fw;
3881 char fwname[64];
3882 int err;
3883
3884 btusb_generate_qca_nvm_name(fwname, max_size: sizeof(fwname), ver);
3885
3886 err = request_firmware(fw: &fw, name: fwname, device: &hdev->dev);
3887 if (err) {
3888 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3889 fwname, err);
3890 return err;
3891 }
3892
3893 bt_dev_info(hdev, "using NVM file: %s", fwname);
3894
3895 err = btusb_setup_qca_download_fw(hdev, firmware: fw, hdr_size: info->nvm_hdr);
3896
3897 release_firmware(fw);
3898
3899 return err;
3900}
3901
3902/* identify the ROM version and check whether patches are needed */
3903static bool btusb_qca_need_patch(struct usb_device *udev)
3904{
3905 struct qca_version ver;
3906
3907 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, data: &ver,
3908 size: sizeof(ver)) < 0)
3909 return false;
3910 /* only low ROM versions need patches */
3911 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3912}
3913
3914static int btusb_setup_qca(struct hci_dev *hdev)
3915{
3916 struct btusb_data *btdata = hci_get_drvdata(hdev);
3917 struct usb_device *udev = btdata->udev;
3918 const struct qca_device_info *info = NULL;
3919 struct qca_version ver;
3920 u32 ver_rom;
3921 u8 status;
3922 int i, err;
3923
3924 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, data: &ver,
3925 size: sizeof(ver));
3926 if (err < 0)
3927 return err;
3928
3929 ver_rom = le32_to_cpu(ver.rom_version);
3930
3931 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3932 if (ver_rom == qca_devices_table[i].rom_version)
3933 info = &qca_devices_table[i];
3934 }
3935 if (!info) {
3936 /* If the rom_version is not matched in the qca_devices_table
3937 * and the high ROM version is not zero, we assume this chip no
3938 * need to load the rampatch and nvm.
3939 */
3940 if (ver_rom & ~0xffffU)
3941 return 0;
3942
3943 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3944 return -ENODEV;
3945 }
3946
3947 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, data: &status,
3948 size: sizeof(status));
3949 if (err < 0)
3950 return err;
3951
3952 if (!(status & QCA_PATCH_UPDATED)) {
3953 err = btusb_setup_qca_load_rampatch(hdev, ver: &ver, info);
3954 if (err < 0)
3955 return err;
3956 }
3957
3958 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, data: &ver,
3959 size: sizeof(ver));
3960 if (err < 0)
3961 return err;
3962
3963 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3964 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3965
3966 if (!(status & QCA_SYSCFG_UPDATED)) {
3967 err = btusb_setup_qca_load_nvm(hdev, ver: &ver, info);
3968 if (err < 0)
3969 return err;
3970
3971 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3972 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3973 * cause potential enable failure.
3974 */
3975 if (info->rom_version >= 0x00130201)
3976 msleep(QCA_BT_RESET_WAIT_MS);
3977 }
3978
3979 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3980 * work with the likes of HSP/HFP mSBC.
3981 */
3982 set_bit(nr: HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, addr: &hdev->quirks);
3983
3984 return 0;
3985}
3986
3987static inline int __set_diag_interface(struct hci_dev *hdev)
3988{
3989 struct btusb_data *data = hci_get_drvdata(hdev);
3990 struct usb_interface *intf = data->diag;
3991 int i;
3992
3993 if (!data->diag)
3994 return -ENODEV;
3995
3996 data->diag_tx_ep = NULL;
3997 data->diag_rx_ep = NULL;
3998
3999 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4000 struct usb_endpoint_descriptor *ep_desc;
4001
4002 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4003
4004 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(epd: ep_desc)) {
4005 data->diag_tx_ep = ep_desc;
4006 continue;
4007 }
4008
4009 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(epd: ep_desc)) {
4010 data->diag_rx_ep = ep_desc;
4011 continue;
4012 }
4013 }
4014
4015 if (!data->diag_tx_ep || !data->diag_rx_ep) {
4016 bt_dev_err(hdev, "invalid diagnostic descriptors");
4017 return -ENODEV;
4018 }
4019
4020 return 0;
4021}
4022
4023static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4024{
4025 struct btusb_data *data = hci_get_drvdata(hdev);
4026 struct sk_buff *skb;
4027 struct urb *urb;
4028 unsigned int pipe;
4029
4030 if (!data->diag_tx_ep)
4031 return ERR_PTR(error: -ENODEV);
4032
4033 urb = usb_alloc_urb(iso_packets: 0, GFP_KERNEL);
4034 if (!urb)
4035 return ERR_PTR(error: -ENOMEM);
4036
4037 skb = bt_skb_alloc(len: 2, GFP_KERNEL);
4038 if (!skb) {
4039 usb_free_urb(urb);
4040 return ERR_PTR(error: -ENOMEM);
4041 }
4042
4043 skb_put_u8(skb, val: 0xf0);
4044 skb_put_u8(skb, val: enable);
4045
4046 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4047
4048 usb_fill_bulk_urb(urb, dev: data->udev, pipe,
4049 transfer_buffer: skb->data, buffer_length: skb->len, complete_fn: btusb_tx_complete, context: skb);
4050
4051 skb->dev = (void *)hdev;
4052
4053 return urb;
4054}
4055
4056static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4057{
4058 struct btusb_data *data = hci_get_drvdata(hdev);
4059 struct urb *urb;
4060
4061 if (!data->diag)
4062 return -ENODEV;
4063
4064 if (!test_bit(HCI_RUNNING, &hdev->flags))
4065 return -ENETDOWN;
4066
4067 urb = alloc_diag_urb(hdev, enable);
4068 if (IS_ERR(ptr: urb))
4069 return PTR_ERR(ptr: urb);
4070
4071 return submit_or_queue_tx_urb(hdev, urb);
4072}
4073
4074#ifdef CONFIG_PM
4075static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4076{
4077 struct btusb_data *data = priv;
4078
4079 pm_wakeup_event(dev: &data->udev->dev, msec: 0);
4080 pm_system_wakeup();
4081
4082 /* Disable only if not already disabled (keep it balanced) */
4083 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, addr: &data->flags)) {
4084 disable_irq_nosync(irq);
4085 disable_irq_wake(irq);
4086 }
4087 return IRQ_HANDLED;
4088}
4089
4090static const struct of_device_id btusb_match_table[] = {
4091 { .compatible = "usb1286,204e" },
4092 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4093 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4094 { }
4095};
4096MODULE_DEVICE_TABLE(of, btusb_match_table);
4097
4098/* Use an oob wakeup pin? */
4099static int btusb_config_oob_wake(struct hci_dev *hdev)
4100{
4101 struct btusb_data *data = hci_get_drvdata(hdev);
4102 struct device *dev = &data->udev->dev;
4103 int irq, ret;
4104
4105 clear_bit(BTUSB_OOB_WAKE_ENABLED, addr: &data->flags);
4106
4107 if (!of_match_device(matches: btusb_match_table, dev))
4108 return 0;
4109
4110 /* Move on if no IRQ specified */
4111 irq = of_irq_get_byname(dev: dev->of_node, name: "wakeup");
4112 if (irq <= 0) {
4113 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4114 return 0;
4115 }
4116
4117 irq_set_status_flags(irq, set: IRQ_NOAUTOEN);
4118 ret = devm_request_irq(dev: &hdev->dev, irq, handler: btusb_oob_wake_handler,
4119 irqflags: 0, devname: "OOB Wake-on-BT", dev_id: data);
4120 if (ret) {
4121 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4122 return ret;
4123 }
4124
4125 ret = device_init_wakeup(dev, enable: true);
4126 if (ret) {
4127 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4128 return ret;
4129 }
4130
4131 data->oob_wake_irq = irq;
4132 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4133 return 0;
4134}
4135#endif
4136
4137static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4138{
4139 if (dmi_check_system(list: btusb_needs_reset_resume_table))
4140 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4141}
4142
4143static bool btusb_wakeup(struct hci_dev *hdev)
4144{
4145 struct btusb_data *data = hci_get_drvdata(hdev);
4146
4147 return device_may_wakeup(dev: &data->udev->dev);
4148}
4149
4150static int btusb_shutdown_qca(struct hci_dev *hdev)
4151{
4152 struct sk_buff *skb;
4153
4154 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, plen: 0, NULL, HCI_INIT_TIMEOUT);
4155 if (IS_ERR(ptr: skb)) {
4156 bt_dev_err(hdev, "HCI reset during shutdown failed");
4157 return PTR_ERR(ptr: skb);
4158 }
4159 kfree_skb(skb);
4160
4161 return 0;
4162}
4163
4164static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4165 size_t count, loff_t *ppos)
4166{
4167 struct btusb_data *data = file->private_data;
4168 char buf[3];
4169
4170 buf[0] = data->poll_sync ? 'Y' : 'N';
4171 buf[1] = '\n';
4172 buf[2] = '\0';
4173 return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2);
4174}
4175
4176static ssize_t force_poll_sync_write(struct file *file,
4177 const char __user *user_buf,
4178 size_t count, loff_t *ppos)
4179{
4180 struct btusb_data *data = file->private_data;
4181 bool enable;
4182 int err;
4183
4184 err = kstrtobool_from_user(s: user_buf, count, res: &enable);
4185 if (err)
4186 return err;
4187
4188 /* Only allow changes while the adapter is down */
4189 if (test_bit(HCI_UP, &data->hdev->flags))
4190 return -EPERM;
4191
4192 if (data->poll_sync == enable)
4193 return -EALREADY;
4194
4195 data->poll_sync = enable;
4196
4197 return count;
4198}
4199
4200static const struct file_operations force_poll_sync_fops = {
4201 .open = simple_open,
4202 .read = force_poll_sync_read,
4203 .write = force_poll_sync_write,
4204 .llseek = default_llseek,
4205};
4206
4207static int btusb_probe(struct usb_interface *intf,
4208 const struct usb_device_id *id)
4209{
4210 struct usb_endpoint_descriptor *ep_desc;
4211 struct gpio_desc *reset_gpio;
4212 struct btusb_data *data;
4213 struct hci_dev *hdev;
4214 unsigned ifnum_base;
4215 int i, err, priv_size;
4216
4217 BT_DBG("intf %p id %p", intf, id);
4218
4219 if ((id->driver_info & BTUSB_IFNUM_2) &&
4220 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4221 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4222 return -ENODEV;
4223
4224 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4225
4226 if (!id->driver_info) {
4227 const struct usb_device_id *match;
4228
4229 match = usb_match_id(interface: intf, id: quirks_table);
4230 if (match)
4231 id = match;
4232 }
4233
4234 if (id->driver_info == BTUSB_IGNORE)
4235 return -ENODEV;
4236
4237 if (id->driver_info & BTUSB_ATH3012) {
4238 struct usb_device *udev = interface_to_usbdev(intf);
4239
4240 /* Old firmware would otherwise let ath3k driver load
4241 * patch and sysconfig files
4242 */
4243 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4244 !btusb_qca_need_patch(udev))
4245 return -ENODEV;
4246 }
4247
4248 data = devm_kzalloc(dev: &intf->dev, size: sizeof(*data), GFP_KERNEL);
4249 if (!data)
4250 return -ENOMEM;
4251
4252 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4253 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4254
4255 if (!data->intr_ep && usb_endpoint_is_int_in(epd: ep_desc)) {
4256 data->intr_ep = ep_desc;
4257 continue;
4258 }
4259
4260 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(epd: ep_desc)) {
4261 data->bulk_tx_ep = ep_desc;
4262 continue;
4263 }
4264
4265 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(epd: ep_desc)) {
4266 data->bulk_rx_ep = ep_desc;
4267 continue;
4268 }
4269 }
4270
4271 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4272 return -ENODEV;
4273
4274 if (id->driver_info & BTUSB_AMP) {
4275 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4276 data->cmdreq = 0x2b;
4277 } else {
4278 data->cmdreq_type = USB_TYPE_CLASS;
4279 data->cmdreq = 0x00;
4280 }
4281
4282 data->udev = interface_to_usbdev(intf);
4283 data->intf = intf;
4284
4285 INIT_WORK(&data->work, btusb_work);
4286 INIT_WORK(&data->waker, btusb_waker);
4287 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4288
4289 skb_queue_head_init(list: &data->acl_q);
4290
4291 init_usb_anchor(anchor: &data->deferred);
4292 init_usb_anchor(anchor: &data->tx_anchor);
4293 spin_lock_init(&data->txlock);
4294
4295 init_usb_anchor(anchor: &data->intr_anchor);
4296 init_usb_anchor(anchor: &data->bulk_anchor);
4297 init_usb_anchor(anchor: &data->isoc_anchor);
4298 init_usb_anchor(anchor: &data->diag_anchor);
4299 init_usb_anchor(anchor: &data->ctrl_anchor);
4300 spin_lock_init(&data->rxlock);
4301
4302 priv_size = 0;
4303
4304 data->recv_event = hci_recv_frame;
4305 data->recv_bulk = btusb_recv_bulk;
4306
4307 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4308 /* Allocate extra space for Intel device */
4309 priv_size += sizeof(struct btintel_data);
4310
4311 /* Override the rx handlers */
4312 data->recv_event = btintel_recv_event;
4313 data->recv_bulk = btusb_recv_bulk_intel;
4314 } else if (id->driver_info & BTUSB_REALTEK) {
4315 /* Allocate extra space for Realtek device */
4316 priv_size += sizeof(struct btrealtek_data);
4317
4318 data->recv_event = btusb_recv_event_realtek;
4319 } else if (id->driver_info & BTUSB_MEDIATEK) {
4320 /* Allocate extra space for Mediatek device */
4321 priv_size += sizeof(struct btmediatek_data);
4322 }
4323
4324 data->recv_acl = hci_recv_frame;
4325
4326 hdev = hci_alloc_dev_priv(sizeof_priv: priv_size);
4327 if (!hdev)
4328 return -ENOMEM;
4329
4330 hdev->bus = HCI_USB;
4331 hci_set_drvdata(hdev, data);
4332
4333 if (id->driver_info & BTUSB_AMP)
4334 hdev->dev_type = HCI_AMP;
4335 else
4336 hdev->dev_type = HCI_PRIMARY;
4337
4338 data->hdev = hdev;
4339
4340 SET_HCIDEV_DEV(hdev, &intf->dev);
4341
4342 reset_gpio = gpiod_get_optional(dev: &data->udev->dev, con_id: "reset",
4343 flags: GPIOD_OUT_LOW);
4344 if (IS_ERR(ptr: reset_gpio)) {
4345 err = PTR_ERR(ptr: reset_gpio);
4346 goto out_free_dev;
4347 } else if (reset_gpio) {
4348 data->reset_gpio = reset_gpio;
4349 }
4350
4351 hdev->open = btusb_open;
4352 hdev->close = btusb_close;
4353 hdev->flush = btusb_flush;
4354 hdev->send = btusb_send_frame;
4355 hdev->notify = btusb_notify;
4356 hdev->wakeup = btusb_wakeup;
4357
4358#ifdef CONFIG_PM
4359 err = btusb_config_oob_wake(hdev);
4360 if (err)
4361 goto out_free_dev;
4362
4363 /* Marvell devices may need a specific chip configuration */
4364 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4365 err = marvell_config_oob_wake(hdev);
4366 if (err)
4367 goto out_free_dev;
4368 }
4369#endif
4370 if (id->driver_info & BTUSB_CW6622)
4371 set_bit(nr: HCI_QUIRK_BROKEN_STORED_LINK_KEY, addr: &hdev->quirks);
4372
4373 if (id->driver_info & BTUSB_BCM2045)
4374 set_bit(nr: HCI_QUIRK_BROKEN_STORED_LINK_KEY, addr: &hdev->quirks);
4375
4376 if (id->driver_info & BTUSB_BCM92035)
4377 hdev->setup = btusb_setup_bcm92035;
4378
4379 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4380 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4381 hdev->manufacturer = 15;
4382 hdev->setup = btbcm_setup_patchram;
4383 hdev->set_diag = btusb_bcm_set_diag;
4384 hdev->set_bdaddr = btbcm_set_bdaddr;
4385
4386 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4387 data->diag = usb_ifnum_to_if(dev: data->udev, ifnum: ifnum_base + 2);
4388 }
4389
4390 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4391 (id->driver_info & BTUSB_BCM_APPLE)) {
4392 hdev->manufacturer = 15;
4393 hdev->setup = btbcm_setup_apple;
4394 hdev->set_diag = btusb_bcm_set_diag;
4395
4396 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4397 data->diag = usb_ifnum_to_if(dev: data->udev, ifnum: ifnum_base + 2);
4398 }
4399
4400 /* Combined Intel Device setup to support multiple setup routine */
4401 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4402 err = btintel_configure_setup(hdev, driver_name: btusb_driver.name);
4403 if (err)
4404 goto out_free_dev;
4405
4406 /* Transport specific configuration */
4407 hdev->send = btusb_send_frame_intel;
4408 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4409
4410 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4411 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4412
4413 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4414 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4415
4416 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4417 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4418 }
4419
4420 if (id->driver_info & BTUSB_MARVELL)
4421 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4422
4423 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4424 (id->driver_info & BTUSB_MEDIATEK)) {
4425 hdev->setup = btusb_mtk_setup;
4426 hdev->shutdown = btusb_mtk_shutdown;
4427 hdev->manufacturer = 70;
4428 hdev->cmd_timeout = btmtk_reset_sync;
4429 hdev->set_bdaddr = btmtk_set_bdaddr;
4430 set_bit(nr: HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, addr: &hdev->quirks);
4431 set_bit(nr: HCI_QUIRK_NON_PERSISTENT_SETUP, addr: &hdev->quirks);
4432 data->recv_acl = btusb_recv_acl_mtk;
4433 }
4434
4435 if (id->driver_info & BTUSB_SWAVE) {
4436 set_bit(nr: HCI_QUIRK_FIXUP_INQUIRY_MODE, addr: &hdev->quirks);
4437 set_bit(nr: HCI_QUIRK_BROKEN_LOCAL_COMMANDS, addr: &hdev->quirks);
4438 }
4439
4440 if (id->driver_info & BTUSB_INTEL_BOOT) {
4441 hdev->manufacturer = 2;
4442 set_bit(nr: HCI_QUIRK_RAW_DEVICE, addr: &hdev->quirks);
4443 }
4444
4445 if (id->driver_info & BTUSB_ATH3012) {
4446 data->setup_on_usb = btusb_setup_qca;
4447 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4448 set_bit(nr: HCI_QUIRK_SIMULTANEOUS_DISCOVERY, addr: &hdev->quirks);
4449 set_bit(nr: HCI_QUIRK_STRICT_DUPLICATE_FILTER, addr: &hdev->quirks);
4450 }
4451
4452 if (id->driver_info & BTUSB_QCA_ROME) {
4453 data->setup_on_usb = btusb_setup_qca;
4454 hdev->shutdown = btusb_shutdown_qca;
4455 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4456 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4457 set_bit(nr: HCI_QUIRK_SIMULTANEOUS_DISCOVERY, addr: &hdev->quirks);
4458 btusb_check_needs_reset_resume(intf);
4459 }
4460
4461 if (id->driver_info & BTUSB_QCA_WCN6855) {
4462 data->qca_dump.id_vendor = id->idVendor;
4463 data->qca_dump.id_product = id->idProduct;
4464 data->recv_event = btusb_recv_evt_qca;
4465 data->recv_acl = btusb_recv_acl_qca;
4466 hci_devcd_register(hdev, coredump: btusb_coredump_qca, dmp_hdr: btusb_dump_hdr_qca, NULL);
4467 data->setup_on_usb = btusb_setup_qca;
4468 hdev->shutdown = btusb_shutdown_qca;
4469 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4470 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4471 set_bit(nr: HCI_QUIRK_SIMULTANEOUS_DISCOVERY, addr: &hdev->quirks);
4472 hci_set_msft_opcode(hdev, opcode: 0xFD70);
4473 }
4474
4475 if (id->driver_info & BTUSB_AMP) {
4476 /* AMP controllers do not support SCO packets */
4477 data->isoc = NULL;
4478 } else {
4479 /* Interface orders are hardcoded in the specification */
4480 data->isoc = usb_ifnum_to_if(dev: data->udev, ifnum: ifnum_base + 1);
4481 data->isoc_ifnum = ifnum_base + 1;
4482 }
4483
4484 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4485 (id->driver_info & BTUSB_REALTEK)) {
4486 btrtl_set_driver_name(hdev, driver_name: btusb_driver.name);
4487 hdev->setup = btusb_setup_realtek;
4488 hdev->shutdown = btrtl_shutdown_realtek;
4489 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4490 hdev->hw_error = btusb_rtl_hw_error;
4491
4492 /* Realtek devices need to set remote wakeup on auto-suspend */
4493 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, addr: &data->flags);
4494 set_bit(BTUSB_USE_ALT3_FOR_WBS, addr: &data->flags);
4495 }
4496
4497 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4498 /* Support is advertised, but not implemented */
4499 set_bit(nr: HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, addr: &hdev->quirks);
4500 set_bit(nr: HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, addr: &hdev->quirks);
4501 set_bit(nr: HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, addr: &hdev->quirks);
4502 set_bit(nr: HCI_QUIRK_BROKEN_EXT_SCAN, addr: &hdev->quirks);
4503 set_bit(nr: HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, addr: &hdev->quirks);
4504 }
4505
4506 if (!reset)
4507 set_bit(nr: HCI_QUIRK_RESET_ON_CLOSE, addr: &hdev->quirks);
4508
4509 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4510 if (!disable_scofix)
4511 set_bit(nr: HCI_QUIRK_FIXUP_BUFFER_SIZE, addr: &hdev->quirks);
4512 }
4513
4514 if (id->driver_info & BTUSB_BROKEN_ISOC)
4515 data->isoc = NULL;
4516
4517 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4518 set_bit(nr: HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, addr: &hdev->quirks);
4519
4520 if (id->driver_info & BTUSB_VALID_LE_STATES)
4521 set_bit(nr: HCI_QUIRK_VALID_LE_STATES, addr: &hdev->quirks);
4522
4523 if (id->driver_info & BTUSB_DIGIANSWER) {
4524 data->cmdreq_type = USB_TYPE_VENDOR;
4525 set_bit(nr: HCI_QUIRK_RESET_ON_CLOSE, addr: &hdev->quirks);
4526 }
4527
4528 if (id->driver_info & BTUSB_CSR) {
4529 struct usb_device *udev = data->udev;
4530 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4531
4532 /* Old firmware would otherwise execute USB reset */
4533 if (bcdDevice < 0x117)
4534 set_bit(nr: HCI_QUIRK_RESET_ON_CLOSE, addr: &hdev->quirks);
4535
4536 /* This must be set first in case we disable it for fakes */
4537 set_bit(nr: HCI_QUIRK_SIMULTANEOUS_DISCOVERY, addr: &hdev->quirks);
4538
4539 /* Fake CSR devices with broken commands */
4540 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4541 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4542 hdev->setup = btusb_setup_csr;
4543 }
4544
4545 if (id->driver_info & BTUSB_SNIFFER) {
4546 struct usb_device *udev = data->udev;
4547
4548 /* New sniffer firmware has crippled HCI interface */
4549 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4550 set_bit(nr: HCI_QUIRK_RAW_DEVICE, addr: &hdev->quirks);
4551 }
4552
4553 if (id->driver_info & BTUSB_INTEL_BOOT) {
4554 /* A bug in the bootloader causes that interrupt interface is
4555 * only enabled after receiving SetInterface(0, AltSetting=0).
4556 */
4557 err = usb_set_interface(dev: data->udev, ifnum: 0, alternate: 0);
4558 if (err < 0) {
4559 BT_ERR("failed to set interface 0, alt 0 %d", err);
4560 goto out_free_dev;
4561 }
4562 }
4563
4564 if (data->isoc) {
4565 err = usb_driver_claim_interface(driver: &btusb_driver,
4566 iface: data->isoc, data);
4567 if (err < 0)
4568 goto out_free_dev;
4569 }
4570
4571 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4572 if (!usb_driver_claim_interface(driver: &btusb_driver,
4573 iface: data->diag, data))
4574 __set_diag_interface(hdev);
4575 else
4576 data->diag = NULL;
4577 }
4578
4579 if (enable_autosuspend)
4580 usb_enable_autosuspend(udev: data->udev);
4581
4582 data->poll_sync = enable_poll_sync;
4583
4584 err = hci_register_dev(hdev);
4585 if (err < 0)
4586 goto out_free_dev;
4587
4588 usb_set_intfdata(intf, data);
4589
4590 debugfs_create_file(name: "force_poll_sync", mode: 0644, parent: hdev->debugfs, data,
4591 fops: &force_poll_sync_fops);
4592
4593 return 0;
4594
4595out_free_dev:
4596 if (data->reset_gpio)
4597 gpiod_put(desc: data->reset_gpio);
4598 hci_free_dev(hdev);
4599 return err;
4600}
4601
4602static void btusb_disconnect(struct usb_interface *intf)
4603{
4604 struct btusb_data *data = usb_get_intfdata(intf);
4605 struct hci_dev *hdev;
4606
4607 BT_DBG("intf %p", intf);
4608
4609 if (!data)
4610 return;
4611
4612 hdev = data->hdev;
4613 usb_set_intfdata(intf: data->intf, NULL);
4614
4615 if (data->isoc)
4616 usb_set_intfdata(intf: data->isoc, NULL);
4617
4618 if (data->diag)
4619 usb_set_intfdata(intf: data->diag, NULL);
4620
4621 hci_unregister_dev(hdev);
4622
4623 if (intf == data->intf) {
4624 if (data->isoc)
4625 usb_driver_release_interface(driver: &btusb_driver, iface: data->isoc);
4626 if (data->diag)
4627 usb_driver_release_interface(driver: &btusb_driver, iface: data->diag);
4628 } else if (intf == data->isoc) {
4629 if (data->diag)
4630 usb_driver_release_interface(driver: &btusb_driver, iface: data->diag);
4631 usb_driver_release_interface(driver: &btusb_driver, iface: data->intf);
4632 } else if (intf == data->diag) {
4633 usb_driver_release_interface(driver: &btusb_driver, iface: data->intf);
4634 if (data->isoc)
4635 usb_driver_release_interface(driver: &btusb_driver, iface: data->isoc);
4636 }
4637
4638 if (data->oob_wake_irq)
4639 device_init_wakeup(dev: &data->udev->dev, enable: false);
4640
4641 if (data->reset_gpio)
4642 gpiod_put(desc: data->reset_gpio);
4643
4644 hci_free_dev(hdev);
4645}
4646
4647#ifdef CONFIG_PM
4648static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4649{
4650 struct btusb_data *data = usb_get_intfdata(intf);
4651
4652 BT_DBG("intf %p", intf);
4653
4654 /* Don't suspend if there are connections */
4655 if (hci_conn_count(hdev: data->hdev))
4656 return -EBUSY;
4657
4658 if (data->suspend_count++)
4659 return 0;
4660
4661 spin_lock_irq(lock: &data->txlock);
4662 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4663 set_bit(BTUSB_SUSPENDING, addr: &data->flags);
4664 spin_unlock_irq(lock: &data->txlock);
4665 } else {
4666 spin_unlock_irq(lock: &data->txlock);
4667 data->suspend_count--;
4668 return -EBUSY;
4669 }
4670
4671 cancel_work_sync(work: &data->work);
4672
4673 btusb_stop_traffic(data);
4674 usb_kill_anchored_urbs(anchor: &data->tx_anchor);
4675
4676 if (data->oob_wake_irq && device_may_wakeup(dev: &data->udev->dev)) {
4677 set_bit(BTUSB_OOB_WAKE_ENABLED, addr: &data->flags);
4678 enable_irq_wake(irq: data->oob_wake_irq);
4679 enable_irq(irq: data->oob_wake_irq);
4680 }
4681
4682 /* For global suspend, Realtek devices lose the loaded fw
4683 * in them. But for autosuspend, firmware should remain.
4684 * Actually, it depends on whether the usb host sends
4685 * set feature (enable wakeup) or not.
4686 */
4687 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4688 if (PMSG_IS_AUTO(message) &&
4689 device_can_wakeup(dev: &data->udev->dev))
4690 data->udev->do_remote_wakeup = 1;
4691 else if (!PMSG_IS_AUTO(message) &&
4692 !device_may_wakeup(dev: &data->udev->dev)) {
4693 data->udev->do_remote_wakeup = 0;
4694 data->udev->reset_resume = 1;
4695 }
4696 }
4697
4698 return 0;
4699}
4700
4701static void play_deferred(struct btusb_data *data)
4702{
4703 struct urb *urb;
4704 int err;
4705
4706 while ((urb = usb_get_from_anchor(anchor: &data->deferred))) {
4707 usb_anchor_urb(urb, anchor: &data->tx_anchor);
4708
4709 err = usb_submit_urb(urb, GFP_ATOMIC);
4710 if (err < 0) {
4711 if (err != -EPERM && err != -ENODEV)
4712 BT_ERR("%s urb %p submission failed (%d)",
4713 data->hdev->name, urb, -err);
4714 kfree(objp: urb->setup_packet);
4715 usb_unanchor_urb(urb);
4716 usb_free_urb(urb);
4717 break;
4718 }
4719
4720 data->tx_in_flight++;
4721 usb_free_urb(urb);
4722 }
4723
4724 /* Cleanup the rest deferred urbs. */
4725 while ((urb = usb_get_from_anchor(anchor: &data->deferred))) {
4726 kfree(objp: urb->setup_packet);
4727 usb_free_urb(urb);
4728 }
4729}
4730
4731static int btusb_resume(struct usb_interface *intf)
4732{
4733 struct btusb_data *data = usb_get_intfdata(intf);
4734 struct hci_dev *hdev = data->hdev;
4735 int err = 0;
4736
4737 BT_DBG("intf %p", intf);
4738
4739 if (--data->suspend_count)
4740 return 0;
4741
4742 /* Disable only if not already disabled (keep it balanced) */
4743 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, addr: &data->flags)) {
4744 disable_irq(irq: data->oob_wake_irq);
4745 disable_irq_wake(irq: data->oob_wake_irq);
4746 }
4747
4748 if (!test_bit(HCI_RUNNING, &hdev->flags))
4749 goto done;
4750
4751 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4752 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4753 if (err < 0) {
4754 clear_bit(BTUSB_INTR_RUNNING, addr: &data->flags);
4755 goto failed;
4756 }
4757 }
4758
4759 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4760 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4761 if (err < 0) {
4762 clear_bit(BTUSB_BULK_RUNNING, addr: &data->flags);
4763 goto failed;
4764 }
4765
4766 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4767 }
4768
4769 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4770 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4771 clear_bit(BTUSB_ISOC_RUNNING, addr: &data->flags);
4772 else
4773 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4774 }
4775
4776 spin_lock_irq(lock: &data->txlock);
4777 play_deferred(data);
4778 clear_bit(BTUSB_SUSPENDING, addr: &data->flags);
4779 spin_unlock_irq(lock: &data->txlock);
4780 schedule_work(work: &data->work);
4781
4782 return 0;
4783
4784failed:
4785 usb_scuttle_anchored_urbs(anchor: &data->deferred);
4786done:
4787 spin_lock_irq(lock: &data->txlock);
4788 clear_bit(BTUSB_SUSPENDING, addr: &data->flags);
4789 spin_unlock_irq(lock: &data->txlock);
4790
4791 return err;
4792}
4793#endif
4794
4795#ifdef CONFIG_DEV_COREDUMP
4796static void btusb_coredump(struct device *dev)
4797{
4798 struct btusb_data *data = dev_get_drvdata(dev);
4799 struct hci_dev *hdev = data->hdev;
4800
4801 if (hdev->dump.coredump)
4802 hdev->dump.coredump(hdev);
4803}
4804#endif
4805
4806static struct usb_driver btusb_driver = {
4807 .name = "btusb",
4808 .probe = btusb_probe,
4809 .disconnect = btusb_disconnect,
4810#ifdef CONFIG_PM
4811 .suspend = btusb_suspend,
4812 .resume = btusb_resume,
4813#endif
4814 .id_table = btusb_table,
4815 .supports_autosuspend = 1,
4816 .disable_hub_initiated_lpm = 1,
4817
4818#ifdef CONFIG_DEV_COREDUMP
4819 .driver = {
4820 .coredump = btusb_coredump,
4821 },
4822#endif
4823};
4824
4825module_usb_driver(btusb_driver);
4826
4827module_param(disable_scofix, bool, 0644);
4828MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4829
4830module_param(force_scofix, bool, 0644);
4831MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4832
4833module_param(enable_autosuspend, bool, 0644);
4834MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4835
4836module_param(reset, bool, 0644);
4837MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4838
4839MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4840MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4841MODULE_VERSION(VERSION);
4842MODULE_LICENSE("GPL");
4843

source code of linux/drivers/bluetooth/btusb.c