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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <[email protected]>
7 */
8
9#include <linux/cpufeature.h>
10#include <linux/dmi.h>
11#include <linux/module.h>
12#include <linux/usb.h>
13#include <linux/usb/quirks.h>
14#include <linux/firmware.h>
15#include <linux/iopoll.h>
16#include <linux/of_device.h>
17#include <linux/of_irq.h>
18#include <linux/suspend.h>
19#include <linux/gpio/consumer.h>
20#include <linux/debugfs.h>
21#include <linux/unaligned.h>
22
23#include <net/bluetooth/bluetooth.h>
24#include <net/bluetooth/hci_core.h>
25#include <net/bluetooth/hci_drv.h>
26
27#include "btintel.h"
28#include "btbcm.h"
29#include "btrtl.h"
30#include "btmtk.h"
31
32#define VERSION "0.8"
33
34static bool disable_scofix;
35static bool force_scofix;
36static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
37static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
38static bool reset = true;
39
40static struct usb_driver btusb_driver;
41
42#define BTUSB_IGNORE BIT(0)
43#define BTUSB_DIGIANSWER BIT(1)
44#define BTUSB_CSR BIT(2)
45#define BTUSB_SNIFFER BIT(3)
46#define BTUSB_BCM92035 BIT(4)
47#define BTUSB_BROKEN_ISOC BIT(5)
48#define BTUSB_WRONG_SCO_MTU BIT(6)
49#define BTUSB_ATH3012 BIT(7)
50#define BTUSB_INTEL_COMBINED BIT(8)
51#define BTUSB_INTEL_BOOT BIT(9)
52#define BTUSB_BCM_PATCHRAM BIT(10)
53#define BTUSB_MARVELL BIT(11)
54#define BTUSB_SWAVE BIT(12)
55#define BTUSB_AMP BIT(13)
56#define BTUSB_QCA_ROME BIT(14)
57#define BTUSB_BCM_APPLE BIT(15)
58#define BTUSB_REALTEK BIT(16)
59#define BTUSB_BCM2045 BIT(17)
60#define BTUSB_IFNUM_2 BIT(18)
61#define BTUSB_CW6622 BIT(19)
62#define BTUSB_MEDIATEK BIT(20)
63#define BTUSB_WIDEBAND_SPEECH BIT(21)
64#define BTUSB_INVALID_LE_STATES BIT(22)
65#define BTUSB_QCA_WCN6855 BIT(23)
66#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
67#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
68#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
69#define BTUSB_ACTIONS_SEMI BIT(27)
70#define BTUSB_BARROT BIT(28)
71#define BTUSB_BROKEN_EXT_SCAN BIT(29)
72
73static const struct usb_device_id btusb_table[] = {
74 /*
75 * NXP IW610 (0471:0215): the composite device reports Bluetooth
76 * class at the whole-device level, so the generic entry below
77 * would also match this WiFi vendor interface. Ignore it here
78 * first so mwifiex-nxp can bind it instead.
79 */
80 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xff, 0xff, 0xff),
81 .driver_info = BTUSB_IGNORE },
82
83 /* Generic Bluetooth USB device */
84 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
85
86 /* Generic Bluetooth AMP device */
87 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
88
89 /* Generic Bluetooth USB interface */
90 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
91
92 /* Apple-specific (Broadcom) devices */
93 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
94 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
95
96 /* MediaTek MT76x0E */
97 { USB_DEVICE(0x0e8d, 0x763f) },
98
99 /* Broadcom SoftSailing reporting vendor specific */
100 { USB_DEVICE(0x0a5c, 0x21e1) },
101
102 /* Apple MacBookPro 7,1 */
103 { USB_DEVICE(0x05ac, 0x8213) },
104
105 /* Apple iMac11,1 */
106 { USB_DEVICE(0x05ac, 0x8215) },
107
108 /* Apple MacBookPro6,2 */
109 { USB_DEVICE(0x05ac, 0x8218) },
110
111 /* Apple MacBookAir3,1, MacBookAir3,2 */
112 { USB_DEVICE(0x05ac, 0x821b) },
113
114 /* Apple MacBookAir4,1 */
115 { USB_DEVICE(0x05ac, 0x821f) },
116
117 /* Apple MacBookPro8,2 */
118 { USB_DEVICE(0x05ac, 0x821a) },
119
120 /* Apple MacMini5,1 */
121 { USB_DEVICE(0x05ac, 0x8281) },
122
123 /* AVM BlueFRITZ! USB v2.0 */
124 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
125
126 /* Bluetooth Ultraport Module from IBM */
127 { USB_DEVICE(0x04bf, 0x030a) },
128
129 /* ALPS Modules with non-standard id */
130 { USB_DEVICE(0x044e, 0x3001) },
131 { USB_DEVICE(0x044e, 0x3002) },
132
133 /* Ericsson with non-standard id */
134 { USB_DEVICE(0x0bdb, 0x1002) },
135
136 /* Canyon CN-BTU1 with HID interfaces */
137 { USB_DEVICE(0x0c10, 0x0000) },
138
139 /* Broadcom BCM20702B0 (Dynex/Insignia) */
140 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
141
142 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
143 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
144 .driver_info = BTUSB_BCM_PATCHRAM },
145
146 /* Broadcom BCM920703 (HTC Vive) */
147 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
148 .driver_info = BTUSB_BCM_PATCHRAM },
149
150 /* Foxconn - Hon Hai */
151 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
152 .driver_info = BTUSB_BCM_PATCHRAM },
153
154 /* Lite-On Technology - Broadcom based */
155 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
156 .driver_info = BTUSB_BCM_PATCHRAM },
157
158 /* Broadcom devices with vendor specific id */
159 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
160 .driver_info = BTUSB_BCM_PATCHRAM },
161
162 /* ASUSTek Computer - Broadcom based */
163 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
164 .driver_info = BTUSB_BCM_PATCHRAM },
165
166 /* Belkin F8065bf - Broadcom based */
167 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
168 .driver_info = BTUSB_BCM_PATCHRAM },
169
170 /* IMC Networks - Broadcom based */
171 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
172 .driver_info = BTUSB_BCM_PATCHRAM },
173
174 /* Dell Computer - Broadcom based */
175 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
176 .driver_info = BTUSB_BCM_PATCHRAM },
177
178 /* Toshiba Corp - Broadcom based */
179 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
180 .driver_info = BTUSB_BCM_PATCHRAM },
181
182 /* Intel Bluetooth USB Bootloader (RAM module) */
183 { USB_DEVICE(0x8087, 0x0a5a),
184 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
185
186 { } /* Terminating entry */
187};
188
189MODULE_DEVICE_TABLE(usb, btusb_table);
190
191static const struct usb_device_id quirks_table[] = {
192 /* CSR BlueCore devices */
193 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
194
195 /* Broadcom BCM2033 without firmware */
196 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
197
198 /* Broadcom BCM2045 devices */
199 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
200
201 /* Atheros 3011 with sflash firmware */
202 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
203 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
204 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
205 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
206 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
207 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
208 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
209
210 /* Atheros AR9285 Malbec with sflash firmware */
211 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
212
213 /* Atheros 3012 with sflash firmware */
214 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
251 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
253 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
254 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
255 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
256 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
258 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
259 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
260 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
261 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
262 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
263 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
264
265 /* Atheros AR5BBU12 with sflash firmware */
266 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
267
268 /* Atheros AR5BBU12 with sflash firmware */
269 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
270 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
271
272 /* QCA ROME chipset */
273 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
294 BTUSB_WIDEBAND_SPEECH },
295 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
296 BTUSB_WIDEBAND_SPEECH },
297 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
298 BTUSB_WIDEBAND_SPEECH },
299 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
300 BTUSB_WIDEBAND_SPEECH },
301 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
302 BTUSB_WIDEBAND_SPEECH },
303 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
304 BTUSB_WIDEBAND_SPEECH },
305 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
306 BTUSB_WIDEBAND_SPEECH },
307 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
308 BTUSB_WIDEBAND_SPEECH },
309 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
310 BTUSB_WIDEBAND_SPEECH },
311 { USB_DEVICE(0x13d3, 0x3503), .driver_info = BTUSB_QCA_ROME |
312 BTUSB_WIDEBAND_SPEECH },
313
314 /* QCA WCN6855 chipset */
315 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH },
317 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
318 BTUSB_WIDEBAND_SPEECH },
319 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
320 BTUSB_WIDEBAND_SPEECH },
321 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH },
323 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
324 BTUSB_WIDEBAND_SPEECH },
325 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
326 BTUSB_WIDEBAND_SPEECH },
327 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH },
329 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
330 BTUSB_WIDEBAND_SPEECH },
331 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
332 BTUSB_WIDEBAND_SPEECH },
333 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH },
335 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
336 BTUSB_WIDEBAND_SPEECH },
337 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
338 BTUSB_WIDEBAND_SPEECH },
339 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH },
341 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
342 BTUSB_WIDEBAND_SPEECH },
343 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
344 BTUSB_WIDEBAND_SPEECH },
345 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH },
347 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
348 BTUSB_WIDEBAND_SPEECH },
349 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
350 BTUSB_WIDEBAND_SPEECH },
351 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH },
353 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
354 BTUSB_WIDEBAND_SPEECH },
355 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
356 BTUSB_WIDEBAND_SPEECH },
357 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH },
359 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
360 BTUSB_WIDEBAND_SPEECH },
361 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
362 BTUSB_WIDEBAND_SPEECH },
363 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH },
365 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
366 BTUSB_WIDEBAND_SPEECH },
367 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
368 BTUSB_WIDEBAND_SPEECH },
369 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH },
371 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
372 BTUSB_WIDEBAND_SPEECH },
373 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
374 BTUSB_WIDEBAND_SPEECH },
375 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH },
377 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
378 BTUSB_WIDEBAND_SPEECH },
379 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
380 BTUSB_WIDEBAND_SPEECH },
381 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH },
383 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
384 BTUSB_WIDEBAND_SPEECH },
385 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 |
386 BTUSB_WIDEBAND_SPEECH },
387
388 /* QCA WCN785x chipset */
389 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
390 BTUSB_WIDEBAND_SPEECH },
391 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
392 BTUSB_WIDEBAND_SPEECH },
393 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH },
395 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 |
396 BTUSB_WIDEBAND_SPEECH },
397 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 |
398 BTUSB_WIDEBAND_SPEECH },
399 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH },
401 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 |
402 BTUSB_WIDEBAND_SPEECH },
403 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 |
404 BTUSB_WIDEBAND_SPEECH },
405 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 |
406 BTUSB_WIDEBAND_SPEECH },
407 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH },
409 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 |
410 BTUSB_WIDEBAND_SPEECH },
411 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 |
412 BTUSB_WIDEBAND_SPEECH },
413 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 |
414 BTUSB_WIDEBAND_SPEECH },
415 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 |
416 BTUSB_WIDEBAND_SPEECH },
417 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
418 BTUSB_WIDEBAND_SPEECH },
419 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 |
420 BTUSB_WIDEBAND_SPEECH },
421 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
422 BTUSB_WIDEBAND_SPEECH },
423 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 |
424 BTUSB_WIDEBAND_SPEECH },
425 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 |
426 BTUSB_WIDEBAND_SPEECH },
427
428 /* Broadcom BCM2035 */
429 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
430 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
431 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
432
433 /* Broadcom BCM2045 */
434 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
435 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
436
437 /* IBM/Lenovo ThinkPad with Broadcom chip */
438 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
439 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
440
441 /* HP laptop with Broadcom chip */
442 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
443
444 /* Dell laptop with Broadcom chip */
445 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
446
447 /* Dell Wireless 370 and 410 devices */
448 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
449 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
450
451 /* Belkin F8T012 and F8T013 devices */
452 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
453 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
454
455 /* Asus WL-BTD202 device */
456 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
457
458 /* Kensington Bluetooth USB adapter */
459 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
460
461 /* RTX Telecom based adapters with buggy SCO support */
462 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
463 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
464
465 /* CONWISE Technology based adapters with buggy SCO support */
466 { USB_DEVICE(0x0e5e, 0x6622),
467 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
468
469 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
470 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
471
472 /* Digianswer devices */
473 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
474 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
475
476 /* CSR BlueCore Bluetooth Sniffer */
477 { USB_DEVICE(0x0a12, 0x0002),
478 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
479
480 /* Frontline ComProbe Bluetooth Sniffer */
481 { USB_DEVICE(0x16d3, 0x0002),
482 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
483
484 /* Marvell Bluetooth devices */
485 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
486 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
487 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
488
489 /*
490 * NXP IW610 BT interfaces (Marvell-lineage silicon, same quirk as
491 * the 0x1286 entries above). Scoped to the BT interface class,
492 * not just VID/PID -- see the btusb_table entry above.
493 */
494 { USB_DEVICE_AND_INTERFACE_INFO(0x0471, 0x0215, 0xe0, 0x01, 0x01),
495 .driver_info = BTUSB_MARVELL },
496
497 /* Intel Bluetooth devices */
498 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
499 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
500 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
501 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
502 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
503 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
504 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
505 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
506 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
507 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
508 { USB_DEVICE(0x8087, 0x0040), .driver_info = BTUSB_INTEL_COMBINED }, /* Lizard Peak 2 */
509 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
510 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
511 BTUSB_INTEL_NO_WBS_SUPPORT |
512 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
513 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
514 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
515 BTUSB_INTEL_NO_WBS_SUPPORT |
516 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
517 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
518 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
519 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
520 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
521
522 /* Other Intel Bluetooth devices */
523 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
524 .driver_info = BTUSB_IGNORE },
525
526 /* Realtek 8821CE Bluetooth devices */
527 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
528 BTUSB_WIDEBAND_SPEECH },
529 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531
532 /* Realtek 8822CE Bluetooth devices */
533 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537
538 /* Realtek 8822CU Bluetooth devices */
539 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
540 BTUSB_WIDEBAND_SPEECH },
541
542 /* Realtek 8851BE Bluetooth devices */
543 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK },
544 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK },
545 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK },
546 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK |
547 BTUSB_WIDEBAND_SPEECH },
548
549 /* Realtek 8851BU Bluetooth devices */
550 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK |
551 BTUSB_WIDEBAND_SPEECH },
552 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK |
553 BTUSB_WIDEBAND_SPEECH },
554 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK |
555 BTUSB_WIDEBAND_SPEECH },
556 { USB_DEVICE(0x2c4e, 0x0128), .driver_info = BTUSB_REALTEK |
557 BTUSB_WIDEBAND_SPEECH },
558
559 /* Realtek 8852AE Bluetooth devices */
560 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
561 BTUSB_WIDEBAND_SPEECH },
562 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
563 BTUSB_WIDEBAND_SPEECH },
564 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
565 BTUSB_WIDEBAND_SPEECH },
566 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
567 BTUSB_WIDEBAND_SPEECH },
568 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
569 BTUSB_WIDEBAND_SPEECH },
570 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
571 BTUSB_WIDEBAND_SPEECH },
572 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
573 BTUSB_WIDEBAND_SPEECH },
574
575 /* Realtek 8852CE Bluetooth devices */
576 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
577 BTUSB_WIDEBAND_SPEECH },
578 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
579 BTUSB_WIDEBAND_SPEECH },
580 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
581 BTUSB_WIDEBAND_SPEECH },
582 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
583 BTUSB_WIDEBAND_SPEECH },
584 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
585 BTUSB_WIDEBAND_SPEECH },
586 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
587 BTUSB_WIDEBAND_SPEECH },
588 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK |
589 BTUSB_WIDEBAND_SPEECH },
590 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
591 BTUSB_WIDEBAND_SPEECH },
592
593 /* Realtek 8852BE Bluetooth devices */
594 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
595 BTUSB_WIDEBAND_SPEECH },
596 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
597 BTUSB_WIDEBAND_SPEECH },
598 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
599 BTUSB_WIDEBAND_SPEECH },
600 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
601 BTUSB_WIDEBAND_SPEECH },
602 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
603 BTUSB_WIDEBAND_SPEECH },
604 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
605 BTUSB_WIDEBAND_SPEECH },
606 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
607 BTUSB_WIDEBAND_SPEECH },
608 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
609 BTUSB_WIDEBAND_SPEECH },
610 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
611 BTUSB_WIDEBAND_SPEECH },
612 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
613 BTUSB_WIDEBAND_SPEECH },
614
615 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
616 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
617 BTUSB_WIDEBAND_SPEECH },
618 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK |
619 BTUSB_WIDEBAND_SPEECH },
620 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK |
621 BTUSB_WIDEBAND_SPEECH },
622 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK |
623 BTUSB_WIDEBAND_SPEECH },
624
625 /* Realtek 8922AE Bluetooth devices */
626 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
627 BTUSB_WIDEBAND_SPEECH },
628 { USB_DEVICE(0x0bda, 0xd922), .driver_info = BTUSB_REALTEK |
629 BTUSB_WIDEBAND_SPEECH },
630 { USB_DEVICE(0x0bda, 0xd923), .driver_info = BTUSB_REALTEK |
631 BTUSB_WIDEBAND_SPEECH },
632 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
633 BTUSB_WIDEBAND_SPEECH },
634 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
635 BTUSB_WIDEBAND_SPEECH },
636 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
637 BTUSB_WIDEBAND_SPEECH },
638
639 /* Realtek 8761BU Bluetooth devices */
640 { USB_DEVICE(0x0bda, 0xa728), .driver_info = BTUSB_REALTEK |
641 BTUSB_BROKEN_EXT_SCAN },
642
643 /* Realtek Bluetooth devices */
644 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
645 .driver_info = BTUSB_REALTEK },
646
647 /* MediaTek Bluetooth devices */
648 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
649 .driver_info = BTUSB_MEDIATEK |
650 BTUSB_WIDEBAND_SPEECH },
651
652 /* Additional MediaTek MT7615E Bluetooth devices */
653 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
654
655 /* Additional MediaTek MT7663 Bluetooth devices */
656 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
657 BTUSB_WIDEBAND_SPEECH },
658 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
659 BTUSB_WIDEBAND_SPEECH },
660
661 /* Additional MediaTek MT7668 Bluetooth devices */
662 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
663 BTUSB_WIDEBAND_SPEECH },
664
665 /* Additional MediaTek MT7920 Bluetooth devices */
666 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
667 BTUSB_WIDEBAND_SPEECH },
668 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK |
669 BTUSB_WIDEBAND_SPEECH },
670 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
671 BTUSB_WIDEBAND_SPEECH },
672 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
673 BTUSB_WIDEBAND_SPEECH },
674 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
675 BTUSB_WIDEBAND_SPEECH },
676 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK |
677 BTUSB_WIDEBAND_SPEECH },
678
679 /* Additional MediaTek MT7921 Bluetooth devices */
680 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
681 BTUSB_WIDEBAND_SPEECH },
682 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
683 BTUSB_WIDEBAND_SPEECH },
684 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
687 BTUSB_WIDEBAND_SPEECH },
688 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
689 BTUSB_WIDEBAND_SPEECH },
690 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
691 BTUSB_WIDEBAND_SPEECH },
692 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
693 BTUSB_WIDEBAND_SPEECH },
694 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
695 BTUSB_WIDEBAND_SPEECH },
696 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
697 BTUSB_WIDEBAND_SPEECH },
698 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK |
699 BTUSB_WIDEBAND_SPEECH },
700 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
701 BTUSB_WIDEBAND_SPEECH },
702 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
703 BTUSB_WIDEBAND_SPEECH },
704 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
705 BTUSB_WIDEBAND_SPEECH },
706 /* MediaTek MT7902 Bluetooth devices */
707 { USB_DEVICE(0x0489, 0xe156), .driver_info = BTUSB_MEDIATEK |
708 BTUSB_WIDEBAND_SPEECH },
709 { USB_DEVICE(0x0e8d, 0x1ede), .driver_info = BTUSB_MEDIATEK |
710 BTUSB_WIDEBAND_SPEECH },
711 { USB_DEVICE(0x13d3, 0x3579), .driver_info = BTUSB_MEDIATEK |
712 BTUSB_WIDEBAND_SPEECH },
713 { USB_DEVICE(0x13d3, 0x3580), .driver_info = BTUSB_MEDIATEK |
714 BTUSB_WIDEBAND_SPEECH },
715 { USB_DEVICE(0x13d3, 0x3594), .driver_info = BTUSB_MEDIATEK |
716 BTUSB_WIDEBAND_SPEECH },
717 { USB_DEVICE(0x13d3, 0x3596), .driver_info = BTUSB_MEDIATEK |
718 BTUSB_WIDEBAND_SPEECH },
719 /* MediaTek MT7922 Bluetooth devices */
720 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
723 BTUSB_WIDEBAND_SPEECH },
724
725 /* MediaTek MT7922A Bluetooth devices */
726 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
727 BTUSB_WIDEBAND_SPEECH },
728 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x0489, 0xe11d), .driver_info = BTUSB_MEDIATEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x0489, 0xe174), .driver_info = BTUSB_MEDIATEK |
753 BTUSB_WIDEBAND_SPEECH },
754 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
755 BTUSB_WIDEBAND_SPEECH },
756 { USB_DEVICE(0x04ca, 0x3807), .driver_info = BTUSB_MEDIATEK |
757 BTUSB_WIDEBAND_SPEECH },
758 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
759 BTUSB_WIDEBAND_SPEECH },
760 { USB_DEVICE(0x0e8d, 0x223c), .driver_info = BTUSB_MEDIATEK |
761 BTUSB_WIDEBAND_SPEECH },
762 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
763 BTUSB_WIDEBAND_SPEECH },
764 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK |
765 BTUSB_WIDEBAND_SPEECH },
766 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
767 BTUSB_WIDEBAND_SPEECH },
768 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
769 BTUSB_WIDEBAND_SPEECH },
770 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
771 BTUSB_WIDEBAND_SPEECH },
772 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
773 BTUSB_WIDEBAND_SPEECH },
774 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK |
775 BTUSB_WIDEBAND_SPEECH },
776 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
777 BTUSB_WIDEBAND_SPEECH },
778
779 /* Additional MediaTek MT7925 Bluetooth devices */
780 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
781 BTUSB_WIDEBAND_SPEECH },
782 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
783 BTUSB_WIDEBAND_SPEECH },
784 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
785 BTUSB_WIDEBAND_SPEECH },
786 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
787 BTUSB_WIDEBAND_SPEECH },
788 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
789 BTUSB_WIDEBAND_SPEECH },
790 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
791 BTUSB_WIDEBAND_SPEECH },
792 { USB_DEVICE(0x0489, 0xe13a), .driver_info = BTUSB_MEDIATEK |
793 BTUSB_WIDEBAND_SPEECH },
794 { USB_DEVICE(0x0489, 0xe0fa), .driver_info = BTUSB_MEDIATEK |
795 BTUSB_WIDEBAND_SPEECH },
796 { USB_DEVICE(0x0489, 0xe10f), .driver_info = BTUSB_MEDIATEK |
797 BTUSB_WIDEBAND_SPEECH },
798 { USB_DEVICE(0x0489, 0xe110), .driver_info = BTUSB_MEDIATEK |
799 BTUSB_WIDEBAND_SPEECH },
800 { USB_DEVICE(0x0489, 0xe116), .driver_info = BTUSB_MEDIATEK |
801 BTUSB_WIDEBAND_SPEECH },
802 { USB_DEVICE(0x13d3, 0x3588), .driver_info = BTUSB_MEDIATEK |
803 BTUSB_WIDEBAND_SPEECH },
804 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK |
805 BTUSB_WIDEBAND_SPEECH },
806 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
807 BTUSB_WIDEBAND_SPEECH },
808 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
809 BTUSB_WIDEBAND_SPEECH },
810 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
811 BTUSB_WIDEBAND_SPEECH },
812 { USB_DEVICE(0x0e8d, 0x8c38), .driver_info = BTUSB_MEDIATEK |
813 BTUSB_WIDEBAND_SPEECH },
814 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
815 BTUSB_WIDEBAND_SPEECH },
816 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
817 BTUSB_WIDEBAND_SPEECH },
818 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
819 BTUSB_WIDEBAND_SPEECH },
820 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
821 BTUSB_WIDEBAND_SPEECH },
822 { USB_DEVICE(0x13d3, 0x3609), .driver_info = BTUSB_MEDIATEK |
823 BTUSB_WIDEBAND_SPEECH },
824 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK |
825 BTUSB_WIDEBAND_SPEECH },
826 { USB_DEVICE(0x13d3, 0x3625), .driver_info = BTUSB_MEDIATEK |
827 BTUSB_WIDEBAND_SPEECH },
828 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK |
829 BTUSB_WIDEBAND_SPEECH },
830 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
831 BTUSB_WIDEBAND_SPEECH },
832 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK |
833 BTUSB_WIDEBAND_SPEECH },
834 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK |
835 BTUSB_WIDEBAND_SPEECH },
836
837 /* Additional Realtek 8723AE Bluetooth devices */
838 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
839 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
840
841 /* Additional Realtek 8723BE Bluetooth devices */
842 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
843 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
844 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
845 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
846 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
847 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
848 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
849
850 /* Additional Realtek 8723BU Bluetooth devices */
851 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
852 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK },
853
854 /* Additional Realtek 8723DE Bluetooth devices */
855 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
856 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
857
858 /* Additional Realtek 8761BUV Bluetooth devices */
859 { USB_DEVICE(0x2c4e, 0x0115), .driver_info = BTUSB_REALTEK |
860 BTUSB_WIDEBAND_SPEECH },
861 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
862 BTUSB_WIDEBAND_SPEECH },
863 { USB_DEVICE(0x2357, 0x0607), .driver_info = BTUSB_REALTEK |
864 BTUSB_WIDEBAND_SPEECH },
865 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
866 BTUSB_WIDEBAND_SPEECH },
867 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
868 BTUSB_WIDEBAND_SPEECH },
869 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
870 BTUSB_WIDEBAND_SPEECH },
871 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
872 BTUSB_WIDEBAND_SPEECH },
873 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
874 BTUSB_WIDEBAND_SPEECH },
875 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
876 BTUSB_WIDEBAND_SPEECH },
877 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK |
878 BTUSB_WIDEBAND_SPEECH },
879 { USB_DEVICE(0x37ad, 0x0600), .driver_info = BTUSB_REALTEK |
880 BTUSB_WIDEBAND_SPEECH },
881
882 /* Additional Realtek 8761CU Bluetooth devices */
883 { USB_DEVICE(0x0b05, 0x1bef), .driver_info = BTUSB_REALTEK |
884 BTUSB_WIDEBAND_SPEECH },
885 { USB_DEVICE(0x0b05, 0x1d70), .driver_info = BTUSB_REALTEK |
886 BTUSB_WIDEBAND_SPEECH },
887
888 /* Additional Realtek 8821AE Bluetooth devices */
889 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
890 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
891 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
892 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
893 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
894
895 /* Additional Realtek 8822BE Bluetooth devices */
896 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
897 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
898
899 /* Additional Realtek 8822CE Bluetooth devices */
900 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
901 BTUSB_WIDEBAND_SPEECH },
902 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
903 BTUSB_WIDEBAND_SPEECH },
904 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
905 BTUSB_WIDEBAND_SPEECH },
906 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
907 BTUSB_WIDEBAND_SPEECH },
908 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
909 BTUSB_WIDEBAND_SPEECH },
910 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
911 BTUSB_WIDEBAND_SPEECH },
912 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
913 BTUSB_WIDEBAND_SPEECH },
914 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
915 BTUSB_WIDEBAND_SPEECH },
916 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
917 BTUSB_WIDEBAND_SPEECH },
918 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
919 BTUSB_WIDEBAND_SPEECH },
920 { USB_DEVICE(0x1357, 0xc123), .driver_info = BTUSB_REALTEK |
921 BTUSB_WIDEBAND_SPEECH },
922 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
923 BTUSB_WIDEBAND_SPEECH },
924
925 /* Barrot Technology Bluetooth devices */
926 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT },
927 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT },
928
929 /* Actions Semiconductor ATS2851 based devices */
930 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
931
932 /* Silicon Wave based devices */
933 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
934
935 { } /* Terminating entry */
936};
937
938/* The Bluetooth USB module build into some devices needs to be reset on resume,
939 * this is a problem with the platform (likely shutting off all power) not with
940 * the module itself. So we use a DMI list to match known broken platforms.
941 */
942static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
943 {
944 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
945 .matches = {
946 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
947 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
948 },
949 },
950 {
951 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
952 .matches = {
953 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
954 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
955 },
956 },
957 {
958 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
959 .matches = {
960 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
961 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
962 },
963 },
964 {}
965};
966
967struct qca_dump_info {
968 /* fields for dump collection */
969 u16 id_vendor;
970 u16 id_product;
971 u32 fw_version;
972 u32 controller_id;
973 u32 ram_dump_size;
974 u16 ram_dump_seqno;
975};
976
977struct btqca_data {
978 struct qca_dump_info qca_dump;
979};
980
981#define BTUSB_MAX_ISOC_FRAMES 10
982
983#define BTUSB_INTR_RUNNING 0
984#define BTUSB_BULK_RUNNING 1
985#define BTUSB_ISOC_RUNNING 2
986#define BTUSB_SUSPENDING 3
987#define BTUSB_DID_ISO_RESUME 4
988#define BTUSB_BOOTLOADER 5
989#define BTUSB_DOWNLOADING 6
990#define BTUSB_FIRMWARE_LOADED 7
991#define BTUSB_FIRMWARE_FAILED 8
992#define BTUSB_BOOTING 9
993#define BTUSB_DIAG_RUNNING 10
994#define BTUSB_OOB_WAKE_ENABLED 11
995#define BTUSB_HW_RESET_ACTIVE 12
996#define BTUSB_TX_WAIT_VND_EVT 13
997#define BTUSB_WAKEUP_AUTOSUSPEND 14
998#define BTUSB_USE_ALT3_FOR_WBS 15
999#define BTUSB_ALT6_CONTINUOUS_TX 16
1000#define BTUSB_HW_SSR_ACTIVE 17
1001#define BTUSB_WAKEUP_BROKEN 18
1002#define BTUSB_RESET 19
1003
1004struct btusb_data {
1005 struct hci_dev *hdev;
1006 struct usb_device *udev;
1007 struct usb_interface *intf;
1008 struct usb_interface *isoc;
1009 struct usb_interface *diag;
1010 unsigned isoc_ifnum;
1011
1012 unsigned long flags;
1013
1014 bool poll_sync;
1015 int intr_interval;
1016 struct work_struct work;
1017 struct work_struct waker;
1018 struct delayed_work rx_work;
1019
1020 struct sk_buff_head acl_q;
1021
1022 struct usb_anchor deferred;
1023 struct usb_anchor tx_anchor;
1024 int tx_in_flight;
1025 spinlock_t txlock;
1026
1027 struct usb_anchor intr_anchor;
1028 struct usb_anchor bulk_anchor;
1029 struct usb_anchor isoc_anchor;
1030 struct usb_anchor diag_anchor;
1031 struct usb_anchor ctrl_anchor;
1032 spinlock_t rxlock;
1033
1034 struct sk_buff *evt_skb;
1035 struct sk_buff *acl_skb;
1036 struct sk_buff *sco_skb;
1037
1038 struct usb_endpoint_descriptor *intr_ep;
1039 struct usb_endpoint_descriptor *bulk_tx_ep;
1040 struct usb_endpoint_descriptor *bulk_rx_ep;
1041 struct usb_endpoint_descriptor *isoc_tx_ep;
1042 struct usb_endpoint_descriptor *isoc_rx_ep;
1043 struct usb_endpoint_descriptor *diag_tx_ep;
1044 struct usb_endpoint_descriptor *diag_rx_ep;
1045
1046 struct gpio_desc *reset_gpio;
1047
1048 __u8 cmdreq_type;
1049 __u8 cmdreq;
1050
1051 unsigned int sco_num;
1052 unsigned int air_mode;
1053 bool usb_alt6_packet_flow;
1054 int isoc_altsetting;
1055 int suspend_count;
1056 const struct usb_device_id *match_id;
1057
1058 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
1059 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
1060 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
1061
1062 int (*setup_on_usb)(struct hci_dev *hdev);
1063
1064 int (*suspend)(struct hci_dev *hdev);
1065 int (*resume)(struct hci_dev *hdev);
1066 int (*disconnect)(struct hci_dev *hdev);
1067
1068 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
1069};
1070
1071static void btusb_reset(struct hci_dev *hdev)
1072{
1073 struct btusb_data *data;
1074 int err;
1075
1076 data = hci_get_drvdata(hdev);
1077 err = usb_autopm_get_interface(data->intf);
1078 if (err) {
1079 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
1080 return;
1081 }
1082
1083 if (test_and_set_bit(BTUSB_RESET, &data->flags))
1084 usb_autopm_put_interface_no_suspend(data->intf);
1085
1086 bt_dev_err(hdev, "Resetting usb device.");
1087 usb_queue_reset_device(data->intf);
1088}
1089
1090static void btusb_intel_reset(struct hci_dev *hdev)
1091{
1092 struct btusb_data *data = hci_get_drvdata(hdev);
1093 struct gpio_desc *reset_gpio = data->reset_gpio;
1094 struct btintel_data *intel_data = hci_get_priv(hdev);
1095
1096 if (intel_data->acpi_reset_method) {
1097 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
1098 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
1099 return;
1100 }
1101
1102 bt_dev_err(hdev, "Initiating acpi reset method");
1103 /* If ACPI reset method fails, lets try with legacy GPIO
1104 * toggling
1105 */
1106 if (!intel_data->acpi_reset_method(hdev)) {
1107 return;
1108 }
1109 }
1110
1111 if (!reset_gpio) {
1112 btusb_reset(hdev);
1113 return;
1114 }
1115
1116 /*
1117 * Toggle the hard reset line if the platform provides one. The reset
1118 * is going to yank the device off the USB and then replug. So doing
1119 * once is enough. The cleanup is handled correctly on the way out
1120 * (standard USB disconnect), and the new device is detected cleanly
1121 * and bound to the driver again like it should be.
1122 */
1123 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1124 bt_dev_err(hdev, "last reset failed? Not resetting again");
1125 return;
1126 }
1127
1128 bt_dev_err(hdev, "Initiating HW reset via gpio");
1129 gpiod_set_value_cansleep(reset_gpio, 1);
1130 msleep(100);
1131 gpiod_set_value_cansleep(reset_gpio, 0);
1132}
1133
1134#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
1135#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
1136#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
1137
1138#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
1139
1140struct rtk_dev_coredump_hdr {
1141 u8 type;
1142 u8 code;
1143 u8 reserved[2];
1144} __packed;
1145
1146static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
1147 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
1148{
1149 struct sk_buff *skb;
1150
1151 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
1152 if (!skb)
1153 return;
1154
1155 skb_put_data(skb, hdr, sizeof(*hdr));
1156 if (len)
1157 skb_put_data(skb, buf, len);
1158
1159 if (!hci_devcd_init(hdev, skb->len)) {
1160 hci_devcd_append(hdev, skb);
1161 hci_devcd_complete(hdev);
1162 } else {
1163 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1164 kfree_skb(skb);
1165 }
1166}
1167
1168static void btusb_rtl_reset(struct hci_dev *hdev)
1169{
1170 struct btusb_data *data = hci_get_drvdata(hdev);
1171 struct gpio_desc *reset_gpio = data->reset_gpio;
1172 struct rtk_dev_coredump_hdr hdr = {
1173 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1174 };
1175
1176 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1177
1178 if (!reset_gpio) {
1179 btusb_reset(hdev);
1180 return;
1181 }
1182
1183 /* Toggle the hard reset line. The Realtek device is going to
1184 * yank itself off the USB and then replug. The cleanup is handled
1185 * correctly on the way out (standard USB disconnect), and the new
1186 * device is detected cleanly and bound to the driver again like
1187 * it should be.
1188 */
1189 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1190 bt_dev_err(hdev, "last reset failed? Not resetting again");
1191 return;
1192 }
1193
1194 bt_dev_err(hdev, "Reset Realtek device via gpio");
1195 gpiod_set_value_cansleep(reset_gpio, 1);
1196 msleep(200);
1197 gpiod_set_value_cansleep(reset_gpio, 0);
1198}
1199
1200static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1201{
1202 struct rtk_dev_coredump_hdr hdr = {
1203 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1204 .code = code,
1205 };
1206
1207 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1208
1209 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1210}
1211
1212static void btusb_qca_reset(struct hci_dev *hdev)
1213{
1214 struct btusb_data *data = hci_get_drvdata(hdev);
1215 struct gpio_desc *reset_gpio = data->reset_gpio;
1216
1217 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1218 bt_dev_info(hdev, "Ramdump in progress, defer reset");
1219 return;
1220 }
1221
1222 if (reset_gpio) {
1223 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1224
1225 /* Toggle the hard reset line. The qca bt device is going to
1226 * yank itself off the USB and then replug. The cleanup is handled
1227 * correctly on the way out (standard USB disconnect), and the new
1228 * device is detected cleanly and bound to the driver again like
1229 * it should be.
1230 */
1231 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1232 bt_dev_err(hdev, "last reset failed? Not resetting again");
1233 return;
1234 }
1235
1236 gpiod_set_value_cansleep(reset_gpio, 0);
1237 msleep(200);
1238 gpiod_set_value_cansleep(reset_gpio, 1);
1239
1240 return;
1241 }
1242
1243 btusb_reset(hdev);
1244}
1245
1246static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
1247{
1248 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug
1249 * packets as ACL frames with connection handle 0x2EDC. These are not real
1250 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent
1251 * "ACL packet for unknown connection handle 3804" errors.
1252 */
1253 if (skb->len >= 2) {
1254 u16 handle = get_unaligned_le16(skb->data);
1255
1256 if (handle == 0x2EDC)
1257 return HCI_DIAG_PKT;
1258 }
1259
1260 /* Use default packet type for other packets */
1261 return hci_skb_pkt_type(skb);
1262}
1263
1264static inline void btusb_free_frags(struct btusb_data *data)
1265{
1266 unsigned long flags;
1267
1268 spin_lock_irqsave(&data->rxlock, flags);
1269
1270 dev_kfree_skb_irq(data->evt_skb);
1271 data->evt_skb = NULL;
1272
1273 dev_kfree_skb_irq(data->acl_skb);
1274 data->acl_skb = NULL;
1275
1276 dev_kfree_skb_irq(data->sco_skb);
1277 data->sco_skb = NULL;
1278
1279 spin_unlock_irqrestore(&data->rxlock, flags);
1280}
1281
1282static int btusb_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
1283{
1284 struct btusb_data *data = hci_get_drvdata(hdev);
1285
1286 if (data->intr_interval) {
1287 /* Trigger dequeue immediately if an event is received */
1288 schedule_delayed_work(&data->rx_work, 0);
1289 }
1290
1291 return data->recv_event(hdev, skb);
1292}
1293
1294static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1295{
1296 struct sk_buff *skb;
1297 unsigned long flags;
1298 int err = 0;
1299
1300 spin_lock_irqsave(&data->rxlock, flags);
1301 skb = data->evt_skb;
1302
1303 while (count) {
1304 int len;
1305
1306 if (!skb) {
1307 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1308 if (!skb) {
1309 err = -ENOMEM;
1310 break;
1311 }
1312
1313 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1314 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1315 }
1316
1317 len = min_t(uint, hci_skb_expect(skb), count);
1318 skb_put_data(skb, buffer, len);
1319
1320 count -= len;
1321 buffer += len;
1322 hci_skb_expect(skb) -= len;
1323
1324 if (skb->len == HCI_EVENT_HDR_SIZE) {
1325 /* Complete event header */
1326 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1327
1328 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1329 kfree_skb(skb);
1330 skb = NULL;
1331
1332 err = -EILSEQ;
1333 break;
1334 }
1335 }
1336
1337 if (!hci_skb_expect(skb)) {
1338 /* Each chunk should correspond to at least 1 or more
1339 * events so if there are still bytes left that doesn't
1340 * constitute a new event this is likely a bug in the
1341 * controller.
1342 */
1343 if (count && count < HCI_EVENT_HDR_SIZE) {
1344 bt_dev_warn(data->hdev,
1345 "Unexpected continuation: %d bytes",
1346 count);
1347 count = 0;
1348 }
1349
1350 /* Complete frame */
1351 btusb_recv_event(data->hdev, skb);
1352 skb = NULL;
1353 }
1354 }
1355
1356 data->evt_skb = skb;
1357 spin_unlock_irqrestore(&data->rxlock, flags);
1358
1359 return err;
1360}
1361
1362static int btusb_recv_acl(struct hci_dev *hdev, struct sk_buff *skb)
1363{
1364 struct btusb_data *data = hci_get_drvdata(hdev);
1365
1366 /* Only queue ACL packet if intr_interval is set as it means
1367 * force_poll_sync has been enabled.
1368 */
1369 if (!data->intr_interval)
1370 return data->recv_acl(hdev, skb);
1371
1372 skb_queue_tail(&data->acl_q, skb);
1373 schedule_delayed_work(&data->rx_work, data->intr_interval);
1374
1375 return 0;
1376}
1377
1378static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1379{
1380 struct sk_buff *skb;
1381 unsigned long flags;
1382 int err = 0;
1383
1384 spin_lock_irqsave(&data->rxlock, flags);
1385 skb = data->acl_skb;
1386
1387 while (count) {
1388 int len;
1389
1390 if (!skb) {
1391 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1392 if (!skb) {
1393 err = -ENOMEM;
1394 break;
1395 }
1396
1397 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1398 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1399 }
1400
1401 len = min_t(uint, hci_skb_expect(skb), count);
1402 skb_put_data(skb, buffer, len);
1403
1404 count -= len;
1405 buffer += len;
1406 hci_skb_expect(skb) -= len;
1407
1408 if (skb->len == HCI_ACL_HDR_SIZE) {
1409 /* Complete ACL header */
1410 hci_skb_expect(skb) = hci_acl_dlen(skb);
1411
1412 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1413 kfree_skb(skb);
1414 skb = NULL;
1415
1416 err = -EILSEQ;
1417 break;
1418 }
1419 }
1420
1421 if (!hci_skb_expect(skb)) {
1422 /* Complete frame */
1423 btusb_recv_acl(data->hdev, skb);
1424 skb = NULL;
1425 }
1426 }
1427
1428 data->acl_skb = skb;
1429 spin_unlock_irqrestore(&data->rxlock, flags);
1430
1431 return err;
1432}
1433
1434static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1435 struct hci_sco_hdr *hdr)
1436{
1437 __u16 handle;
1438
1439 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1440 // Can't validate, userspace controls everything.
1441 return true;
1442
1443 /*
1444 * USB isochronous transfers are not designed to be reliable and may
1445 * lose fragments. When this happens, the next first fragment
1446 * encountered might actually be a continuation fragment.
1447 * Validate the handle to detect it and drop it, or else the upper
1448 * layer will get garbage for a while.
1449 */
1450
1451 handle = hci_handle(__le16_to_cpu(hdr->handle));
1452
1453 switch (hci_conn_lookup_type(hdev, handle)) {
1454 case SCO_LINK:
1455 case ESCO_LINK:
1456 return true;
1457 default:
1458 return false;
1459 }
1460}
1461
1462static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1463{
1464 struct sk_buff *skb;
1465 unsigned long flags;
1466 int err = 0;
1467
1468 spin_lock_irqsave(&data->rxlock, flags);
1469 skb = data->sco_skb;
1470
1471 while (count) {
1472 int len;
1473
1474 if (!skb) {
1475 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1476 if (!skb) {
1477 err = -ENOMEM;
1478 break;
1479 }
1480
1481 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1482 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1483 }
1484
1485 len = min_t(uint, hci_skb_expect(skb), count);
1486 skb_put_data(skb, buffer, len);
1487
1488 count -= len;
1489 buffer += len;
1490 hci_skb_expect(skb) -= len;
1491
1492 if (skb->len == HCI_SCO_HDR_SIZE) {
1493 /* Complete SCO header */
1494 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1495
1496 hci_skb_expect(skb) = hdr->dlen;
1497
1498 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1499 !btusb_validate_sco_handle(data->hdev, hdr)) {
1500 kfree_skb(skb);
1501 skb = NULL;
1502
1503 err = -EILSEQ;
1504 break;
1505 }
1506 }
1507
1508 if (!hci_skb_expect(skb)) {
1509 /* Complete frame */
1510 hci_recv_frame(data->hdev, skb);
1511 skb = NULL;
1512 }
1513 }
1514
1515 data->sco_skb = skb;
1516 spin_unlock_irqrestore(&data->rxlock, flags);
1517
1518 return err;
1519}
1520
1521static void btusb_intr_complete(struct urb *urb)
1522{
1523 struct hci_dev *hdev = urb->context;
1524 struct btusb_data *data = hci_get_drvdata(hdev);
1525 int err;
1526
1527 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1528 urb->actual_length);
1529
1530 if (!test_bit(HCI_RUNNING, &hdev->flags))
1531 return;
1532
1533 if (urb->status == 0) {
1534 hdev->stat.byte_rx += urb->actual_length;
1535
1536 if (btusb_recv_intr(data, urb->transfer_buffer,
1537 urb->actual_length) < 0) {
1538 bt_dev_err(hdev, "corrupted event packet");
1539 hdev->stat.err_rx++;
1540 }
1541 } else if (urb->status == -ENOENT) {
1542 /* Avoid suspend failed when usb_kill_urb */
1543 return;
1544 }
1545
1546 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1547 return;
1548
1549 usb_mark_last_busy(data->udev);
1550 usb_anchor_urb(urb, &data->intr_anchor);
1551
1552 err = usb_submit_urb(urb, GFP_ATOMIC);
1553 if (err < 0) {
1554 /* -EPERM: urb is being killed;
1555 * -ENODEV: device got disconnected
1556 */
1557 if (err != -EPERM && err != -ENODEV)
1558 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1559 urb, -err);
1560 if (err != -EPERM)
1561 hci_cmd_sync_cancel(hdev, -err);
1562 usb_unanchor_urb(urb);
1563 }
1564}
1565
1566static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1567{
1568 struct btusb_data *data = hci_get_drvdata(hdev);
1569 struct urb *urb;
1570 unsigned char *buf;
1571 unsigned int pipe;
1572 int err, size;
1573
1574 BT_DBG("%s", hdev->name);
1575
1576 if (!data->intr_ep)
1577 return -ENODEV;
1578
1579 urb = usb_alloc_urb(0, mem_flags);
1580 if (!urb)
1581 return -ENOMEM;
1582
1583 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1584 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1585 /* Fake CSR devices don't seem to support sort-transter */
1586 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1587 else
1588 /* Use maximum HCI Event size so the USB stack handles
1589 * ZPL/short-transfer automatically.
1590 */
1591 size = HCI_MAX_EVENT_SIZE;
1592
1593 buf = kmalloc(size, mem_flags);
1594 if (!buf) {
1595 usb_free_urb(urb);
1596 return -ENOMEM;
1597 }
1598
1599 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1600
1601 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1602 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1603
1604 urb->transfer_flags |= URB_FREE_BUFFER;
1605
1606 usb_anchor_urb(urb, &data->intr_anchor);
1607
1608 err = usb_submit_urb(urb, mem_flags);
1609 if (err < 0) {
1610 if (err != -EPERM && err != -ENODEV)
1611 bt_dev_err(hdev, "urb %p submission failed (%d)",
1612 urb, -err);
1613 if (err != -EPERM)
1614 hci_cmd_sync_cancel(hdev, -err);
1615 usb_unanchor_urb(urb);
1616 }
1617
1618 /* Only initialize intr_interval if URB poll sync is enabled */
1619 if (!data->poll_sync)
1620 goto done;
1621
1622 /* The units are frames (milliseconds) for full and low speed devices,
1623 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1624 * devices.
1625 *
1626 * This is done once on open/resume so it shouldn't change even if
1627 * force_poll_sync changes.
1628 */
1629 switch (urb->dev->speed) {
1630 case USB_SPEED_SUPER_PLUS:
1631 case USB_SPEED_SUPER: /* units are 125us */
1632 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1633 break;
1634 default:
1635 data->intr_interval = msecs_to_jiffies(urb->interval);
1636 break;
1637 }
1638
1639done:
1640 usb_free_urb(urb);
1641
1642 return err;
1643}
1644
1645static void btusb_bulk_complete(struct urb *urb)
1646{
1647 struct hci_dev *hdev = urb->context;
1648 struct btusb_data *data = hci_get_drvdata(hdev);
1649 int err;
1650
1651 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1652 urb->actual_length);
1653
1654 if (!test_bit(HCI_RUNNING, &hdev->flags))
1655 return;
1656
1657 if (urb->status == 0) {
1658 hdev->stat.byte_rx += urb->actual_length;
1659
1660 if (data->recv_bulk(data, urb->transfer_buffer,
1661 urb->actual_length) < 0) {
1662 bt_dev_err(hdev, "corrupted ACL packet");
1663 hdev->stat.err_rx++;
1664 }
1665 } else if (urb->status == -ENOENT) {
1666 /* Avoid suspend failed when usb_kill_urb */
1667 return;
1668 }
1669
1670 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1671 return;
1672
1673 usb_anchor_urb(urb, &data->bulk_anchor);
1674 usb_mark_last_busy(data->udev);
1675
1676 err = usb_submit_urb(urb, GFP_ATOMIC);
1677 if (err < 0) {
1678 /* -EPERM: urb is being killed;
1679 * -ENODEV: device got disconnected
1680 */
1681 if (err != -EPERM && err != -ENODEV)
1682 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1683 urb, -err);
1684 usb_unanchor_urb(urb);
1685 }
1686}
1687
1688static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1689{
1690 struct btusb_data *data = hci_get_drvdata(hdev);
1691 struct urb *urb;
1692 unsigned char *buf;
1693 unsigned int pipe;
1694 int err, size = HCI_MAX_FRAME_SIZE;
1695
1696 BT_DBG("%s", hdev->name);
1697
1698 if (!data->bulk_rx_ep)
1699 return -ENODEV;
1700
1701 urb = usb_alloc_urb(0, mem_flags);
1702 if (!urb)
1703 return -ENOMEM;
1704
1705 buf = kmalloc(size, mem_flags);
1706 if (!buf) {
1707 usb_free_urb(urb);
1708 return -ENOMEM;
1709 }
1710
1711 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1712
1713 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1714 btusb_bulk_complete, hdev);
1715
1716 urb->transfer_flags |= URB_FREE_BUFFER;
1717
1718 usb_mark_last_busy(data->udev);
1719 usb_anchor_urb(urb, &data->bulk_anchor);
1720
1721 err = usb_submit_urb(urb, mem_flags);
1722 if (err < 0) {
1723 if (err != -EPERM && err != -ENODEV)
1724 bt_dev_err(hdev, "urb %p submission failed (%d)",
1725 urb, -err);
1726 usb_unanchor_urb(urb);
1727 }
1728
1729 usb_free_urb(urb);
1730
1731 return err;
1732}
1733
1734static void btusb_isoc_complete(struct urb *urb)
1735{
1736 struct hci_dev *hdev = urb->context;
1737 struct btusb_data *data = hci_get_drvdata(hdev);
1738 int i, err;
1739
1740 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1741 urb->actual_length);
1742
1743 if (!test_bit(HCI_RUNNING, &hdev->flags))
1744 return;
1745
1746 if (urb->status == 0) {
1747 for (i = 0; i < urb->number_of_packets; i++) {
1748 unsigned int offset = urb->iso_frame_desc[i].offset;
1749 unsigned int length = urb->iso_frame_desc[i].actual_length;
1750
1751 if (urb->iso_frame_desc[i].status)
1752 continue;
1753
1754 hdev->stat.byte_rx += length;
1755
1756 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1757 length) < 0) {
1758 bt_dev_err(hdev, "corrupted SCO packet");
1759 hdev->stat.err_rx++;
1760 }
1761 }
1762 } else if (urb->status == -ENOENT) {
1763 /* Avoid suspend failed when usb_kill_urb */
1764 return;
1765 }
1766
1767 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1768 return;
1769
1770 usb_anchor_urb(urb, &data->isoc_anchor);
1771
1772 err = usb_submit_urb(urb, GFP_ATOMIC);
1773 if (err < 0) {
1774 /* -EPERM: urb is being killed;
1775 * -ENODEV: device got disconnected
1776 */
1777 if (err != -EPERM && err != -ENODEV)
1778 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1779 urb, -err);
1780 usb_unanchor_urb(urb);
1781 }
1782}
1783
1784static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1785 int mtu, struct btusb_data *data)
1786{
1787 int i = 0, offset = 0;
1788 unsigned int interval;
1789
1790 BT_DBG("len %d mtu %d", len, mtu);
1791
1792 /* For mSBC ALT 6 settings some chips need to transmit the data
1793 * continuously without the zero length of USB packets.
1794 */
1795 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1796 goto ignore_usb_alt6_packet_flow;
1797
1798 /* For mSBC ALT 6 setting the host will send the packet at continuous
1799 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1800 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1801 * To maintain the rate we send 63bytes of usb packets alternatively for
1802 * 7ms and 8ms to maintain the rate as 7.5ms.
1803 */
1804 if (data->usb_alt6_packet_flow) {
1805 interval = 7;
1806 data->usb_alt6_packet_flow = false;
1807 } else {
1808 interval = 6;
1809 data->usb_alt6_packet_flow = true;
1810 }
1811
1812 for (i = 0; i < interval; i++) {
1813 urb->iso_frame_desc[i].offset = offset;
1814 urb->iso_frame_desc[i].length = offset;
1815 }
1816
1817ignore_usb_alt6_packet_flow:
1818 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1819 urb->iso_frame_desc[i].offset = offset;
1820 urb->iso_frame_desc[i].length = len;
1821 i++;
1822 }
1823
1824 urb->number_of_packets = i;
1825}
1826
1827static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1828{
1829 int i, offset = 0;
1830
1831 BT_DBG("len %d mtu %d", len, mtu);
1832
1833 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1834 i++, offset += mtu, len -= mtu) {
1835 urb->iso_frame_desc[i].offset = offset;
1836 urb->iso_frame_desc[i].length = mtu;
1837 }
1838
1839 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1840 urb->iso_frame_desc[i].offset = offset;
1841 urb->iso_frame_desc[i].length = len;
1842 i++;
1843 }
1844
1845 urb->number_of_packets = i;
1846}
1847
1848static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1849{
1850 struct btusb_data *data = hci_get_drvdata(hdev);
1851 struct urb *urb;
1852 unsigned char *buf;
1853 unsigned int pipe;
1854 int err, size;
1855
1856 BT_DBG("%s", hdev->name);
1857
1858 if (!data->isoc_rx_ep)
1859 return -ENODEV;
1860
1861 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1862 if (!urb)
1863 return -ENOMEM;
1864
1865 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1866 BTUSB_MAX_ISOC_FRAMES;
1867
1868 buf = kmalloc(size, mem_flags);
1869 if (!buf) {
1870 usb_free_urb(urb);
1871 return -ENOMEM;
1872 }
1873
1874 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1875
1876 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1877 hdev, data->isoc_rx_ep->bInterval);
1878
1879 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1880
1881 __fill_isoc_descriptor(urb, size,
1882 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1883
1884 usb_anchor_urb(urb, &data->isoc_anchor);
1885
1886 err = usb_submit_urb(urb, mem_flags);
1887 if (err < 0) {
1888 if (err != -EPERM && err != -ENODEV)
1889 bt_dev_err(hdev, "urb %p submission failed (%d)",
1890 urb, -err);
1891 usb_unanchor_urb(urb);
1892 }
1893
1894 usb_free_urb(urb);
1895
1896 return err;
1897}
1898
1899static void btusb_diag_complete(struct urb *urb)
1900{
1901 struct hci_dev *hdev = urb->context;
1902 struct btusb_data *data = hci_get_drvdata(hdev);
1903 int err;
1904
1905 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1906 urb->actual_length);
1907
1908 if (urb->status == 0) {
1909 struct sk_buff *skb;
1910
1911 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1912 if (skb) {
1913 skb_put_data(skb, urb->transfer_buffer,
1914 urb->actual_length);
1915 hci_recv_diag(hdev, skb);
1916 }
1917 } else if (urb->status == -ENOENT) {
1918 /* Avoid suspend failed when usb_kill_urb */
1919 return;
1920 }
1921
1922 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1923 return;
1924
1925 usb_anchor_urb(urb, &data->diag_anchor);
1926 usb_mark_last_busy(data->udev);
1927
1928 err = usb_submit_urb(urb, GFP_ATOMIC);
1929 if (err < 0) {
1930 /* -EPERM: urb is being killed;
1931 * -ENODEV: device got disconnected
1932 */
1933 if (err != -EPERM && err != -ENODEV)
1934 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1935 urb, -err);
1936 usb_unanchor_urb(urb);
1937 }
1938}
1939
1940static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1941{
1942 struct btusb_data *data = hci_get_drvdata(hdev);
1943 struct urb *urb;
1944 unsigned char *buf;
1945 unsigned int pipe;
1946 int err, size = HCI_MAX_FRAME_SIZE;
1947
1948 BT_DBG("%s", hdev->name);
1949
1950 if (!data->diag_rx_ep)
1951 return -ENODEV;
1952
1953 urb = usb_alloc_urb(0, mem_flags);
1954 if (!urb)
1955 return -ENOMEM;
1956
1957 buf = kmalloc(size, mem_flags);
1958 if (!buf) {
1959 usb_free_urb(urb);
1960 return -ENOMEM;
1961 }
1962
1963 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1964
1965 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1966 btusb_diag_complete, hdev);
1967
1968 urb->transfer_flags |= URB_FREE_BUFFER;
1969
1970 usb_mark_last_busy(data->udev);
1971 usb_anchor_urb(urb, &data->diag_anchor);
1972
1973 err = usb_submit_urb(urb, mem_flags);
1974 if (err < 0) {
1975 if (err != -EPERM && err != -ENODEV)
1976 bt_dev_err(hdev, "urb %p submission failed (%d)",
1977 urb, -err);
1978 usb_unanchor_urb(urb);
1979 }
1980
1981 usb_free_urb(urb);
1982
1983 return err;
1984}
1985
1986static void btusb_tx_complete(struct urb *urb)
1987{
1988 struct sk_buff *skb = urb->context;
1989 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1990 struct btusb_data *data = hci_get_drvdata(hdev);
1991 unsigned long flags;
1992
1993 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1994 urb->actual_length);
1995
1996 if (!test_bit(HCI_RUNNING, &hdev->flags))
1997 goto done;
1998
1999 if (!urb->status) {
2000 hdev->stat.byte_tx += urb->transfer_buffer_length;
2001 } else {
2002 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
2003 hci_cmd_sync_cancel(hdev, -urb->status);
2004 hdev->stat.err_tx++;
2005 }
2006
2007done:
2008 spin_lock_irqsave(&data->txlock, flags);
2009 data->tx_in_flight--;
2010 spin_unlock_irqrestore(&data->txlock, flags);
2011
2012 kfree(urb->setup_packet);
2013
2014 kfree_skb(skb);
2015}
2016
2017static void btusb_isoc_tx_complete(struct urb *urb)
2018{
2019 struct sk_buff *skb = urb->context;
2020 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
2021
2022 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
2023 urb->actual_length);
2024
2025 if (!test_bit(HCI_RUNNING, &hdev->flags))
2026 goto done;
2027
2028 if (!urb->status)
2029 hdev->stat.byte_tx += urb->transfer_buffer_length;
2030 else
2031 hdev->stat.err_tx++;
2032
2033done:
2034 kfree(urb->setup_packet);
2035
2036 kfree_skb(skb);
2037}
2038
2039static int btusb_open(struct hci_dev *hdev)
2040{
2041 struct btusb_data *data = hci_get_drvdata(hdev);
2042 int err;
2043
2044 BT_DBG("%s", hdev->name);
2045
2046 err = usb_autopm_get_interface(data->intf);
2047 if (err < 0)
2048 return err;
2049
2050 /* Patching USB firmware files prior to starting any URBs of HCI path
2051 * It is more safe to use USB bulk channel for downloading USB patch
2052 */
2053 if (data->setup_on_usb) {
2054 err = data->setup_on_usb(hdev);
2055 if (err < 0)
2056 goto setup_fail;
2057 }
2058
2059 data->intf->needs_remote_wakeup = 1;
2060
2061 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
2062 goto done;
2063
2064 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
2065 if (err < 0)
2066 goto failed;
2067
2068 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
2069 if (err < 0) {
2070 usb_kill_anchored_urbs(&data->intr_anchor);
2071 goto failed;
2072 }
2073
2074 set_bit(BTUSB_BULK_RUNNING, &data->flags);
2075 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
2076
2077 if (data->diag) {
2078 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
2079 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
2080 }
2081
2082done:
2083 usb_autopm_put_interface(data->intf);
2084 return 0;
2085
2086failed:
2087 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2088setup_fail:
2089 usb_autopm_put_interface(data->intf);
2090 return err;
2091}
2092
2093static void btusb_stop_traffic(struct btusb_data *data)
2094{
2095 usb_kill_anchored_urbs(&data->intr_anchor);
2096 usb_kill_anchored_urbs(&data->bulk_anchor);
2097 usb_kill_anchored_urbs(&data->isoc_anchor);
2098 usb_kill_anchored_urbs(&data->diag_anchor);
2099 usb_kill_anchored_urbs(&data->ctrl_anchor);
2100}
2101
2102static void btusb_prepare_reset(struct hci_dev *hdev)
2103{
2104 struct btusb_data *data = hci_get_drvdata(hdev);
2105
2106 btusb_stop_traffic(data);
2107 usb_kill_anchored_urbs(&data->tx_anchor);
2108}
2109
2110static int btusb_close(struct hci_dev *hdev)
2111{
2112 struct btusb_data *data = hci_get_drvdata(hdev);
2113 int err;
2114
2115 BT_DBG("%s", hdev->name);
2116
2117 cancel_work_sync(&data->work);
2118 cancel_work_sync(&data->waker);
2119
2120 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2121 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2122 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2123 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
2124
2125 btusb_stop_traffic(data);
2126
2127 /* rx_work must only be canceled once the URBs that can rearm it are
2128 * gone, and it must be canceled synchronously since btusb_disconnect()
2129 * frees the btusb_data it dereferences right after hci_unregister_dev().
2130 */
2131 cancel_delayed_work_sync(&data->rx_work);
2132
2133 skb_queue_purge(&data->acl_q);
2134
2135 btusb_free_frags(data);
2136
2137 err = usb_autopm_get_interface(data->intf);
2138 if (err < 0)
2139 goto failed;
2140
2141 data->intf->needs_remote_wakeup = 0;
2142
2143 /* Enable remote wake up for auto-suspend */
2144 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
2145 data->intf->needs_remote_wakeup = 1;
2146
2147 usb_autopm_put_interface(data->intf);
2148
2149failed:
2150 usb_scuttle_anchored_urbs(&data->deferred);
2151 return 0;
2152}
2153
2154static int btusb_flush(struct hci_dev *hdev)
2155{
2156 struct btusb_data *data = hci_get_drvdata(hdev);
2157
2158 BT_DBG("%s", hdev->name);
2159
2160 cancel_delayed_work_sync(&data->rx_work);
2161
2162 skb_queue_purge(&data->acl_q);
2163
2164 usb_kill_anchored_urbs(&data->tx_anchor);
2165 btusb_free_frags(data);
2166
2167 return 0;
2168}
2169
2170static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
2171{
2172 struct btusb_data *data = hci_get_drvdata(hdev);
2173 struct usb_ctrlrequest *dr;
2174 struct urb *urb;
2175 unsigned int pipe;
2176
2177 urb = usb_alloc_urb(0, GFP_KERNEL);
2178 if (!urb)
2179 return ERR_PTR(-ENOMEM);
2180
2181 dr = kmalloc_obj(*dr);
2182 if (!dr) {
2183 usb_free_urb(urb);
2184 return ERR_PTR(-ENOMEM);
2185 }
2186
2187 dr->bRequestType = data->cmdreq_type;
2188 dr->bRequest = data->cmdreq;
2189 dr->wIndex = 0;
2190 dr->wValue = 0;
2191 dr->wLength = __cpu_to_le16(skb->len);
2192
2193 pipe = usb_sndctrlpipe(data->udev, 0x00);
2194
2195 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2196 skb->data, skb->len, btusb_tx_complete, skb);
2197
2198 skb->dev = (void *)hdev;
2199
2200 return urb;
2201}
2202
2203static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2204{
2205 struct btusb_data *data = hci_get_drvdata(hdev);
2206 struct urb *urb;
2207 unsigned int pipe;
2208
2209 if (!data->bulk_tx_ep)
2210 return ERR_PTR(-ENODEV);
2211
2212 urb = usb_alloc_urb(0, GFP_KERNEL);
2213 if (!urb)
2214 return ERR_PTR(-ENOMEM);
2215
2216 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2217
2218 usb_fill_bulk_urb(urb, data->udev, pipe,
2219 skb->data, skb->len, btusb_tx_complete, skb);
2220
2221 skb->dev = (void *)hdev;
2222
2223 return urb;
2224}
2225
2226static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2227{
2228 struct btusb_data *data = hci_get_drvdata(hdev);
2229 struct urb *urb;
2230 unsigned int pipe;
2231
2232 if (!data->isoc_tx_ep)
2233 return ERR_PTR(-ENODEV);
2234
2235 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2236 if (!urb)
2237 return ERR_PTR(-ENOMEM);
2238
2239 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2240
2241 usb_fill_int_urb(urb, data->udev, pipe,
2242 skb->data, skb->len, btusb_isoc_tx_complete,
2243 skb, data->isoc_tx_ep->bInterval);
2244
2245 urb->transfer_flags = URB_ISO_ASAP;
2246
2247 if (data->isoc_altsetting == 6)
2248 __fill_isoc_descriptor_msbc(urb, skb->len,
2249 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2250 data);
2251 else
2252 __fill_isoc_descriptor(urb, skb->len,
2253 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2254 skb->dev = (void *)hdev;
2255
2256 return urb;
2257}
2258
2259static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2260{
2261 struct btusb_data *data = hci_get_drvdata(hdev);
2262 int err;
2263
2264 usb_anchor_urb(urb, &data->tx_anchor);
2265
2266 err = usb_submit_urb(urb, GFP_KERNEL);
2267 if (err < 0) {
2268 if (err != -EPERM && err != -ENODEV)
2269 bt_dev_err(hdev, "urb %p submission failed (%d)",
2270 urb, -err);
2271 kfree(urb->setup_packet);
2272 usb_unanchor_urb(urb);
2273 } else {
2274 usb_mark_last_busy(data->udev);
2275 }
2276
2277 usb_free_urb(urb);
2278 return err;
2279}
2280
2281static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2282{
2283 struct btusb_data *data = hci_get_drvdata(hdev);
2284 unsigned long flags;
2285 bool suspending;
2286
2287 spin_lock_irqsave(&data->txlock, flags);
2288 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2289 if (!suspending)
2290 data->tx_in_flight++;
2291 spin_unlock_irqrestore(&data->txlock, flags);
2292
2293 if (!suspending)
2294 return submit_tx_urb(hdev, urb);
2295
2296 usb_anchor_urb(urb, &data->deferred);
2297 schedule_work(&data->waker);
2298
2299 usb_free_urb(urb);
2300 return 0;
2301}
2302
2303static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2304{
2305 struct urb *urb;
2306
2307 BT_DBG("%s", hdev->name);
2308
2309 switch (hci_skb_pkt_type(skb)) {
2310 case HCI_COMMAND_PKT:
2311 urb = alloc_ctrl_urb(hdev, skb);
2312 if (IS_ERR(urb))
2313 return PTR_ERR(urb);
2314
2315 hdev->stat.cmd_tx++;
2316 return submit_or_queue_tx_urb(hdev, urb);
2317
2318 case HCI_ACLDATA_PKT:
2319 urb = alloc_bulk_urb(hdev, skb);
2320 if (IS_ERR(urb))
2321 return PTR_ERR(urb);
2322
2323 hdev->stat.acl_tx++;
2324 return submit_or_queue_tx_urb(hdev, urb);
2325
2326 case HCI_SCODATA_PKT:
2327 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2328 hci_conn_num(hdev, SCO_LINK) < 1)
2329 return -ENODEV;
2330
2331 urb = alloc_isoc_urb(hdev, skb);
2332 if (IS_ERR(urb))
2333 return PTR_ERR(urb);
2334
2335 hdev->stat.sco_tx++;
2336 return submit_tx_urb(hdev, urb);
2337
2338 case HCI_ISODATA_PKT:
2339 urb = alloc_bulk_urb(hdev, skb);
2340 if (IS_ERR(urb))
2341 return PTR_ERR(urb);
2342
2343 return submit_or_queue_tx_urb(hdev, urb);
2344 }
2345
2346 return -EILSEQ;
2347}
2348
2349static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2350{
2351 struct btusb_data *data = hci_get_drvdata(hdev);
2352
2353 BT_DBG("%s evt %d", hdev->name, evt);
2354
2355 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2356 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2357 data->air_mode = evt;
2358 schedule_work(&data->work);
2359 }
2360}
2361
2362static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2363{
2364 struct btusb_data *data = hci_get_drvdata(hdev);
2365 struct usb_interface *intf = data->isoc;
2366 struct usb_endpoint_descriptor *ep_desc;
2367 int i, err;
2368
2369 if (!data->isoc)
2370 return -ENODEV;
2371
2372 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2373 if (err < 0) {
2374 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2375 return err;
2376 }
2377
2378 data->isoc_altsetting = altsetting;
2379
2380 data->isoc_tx_ep = NULL;
2381 data->isoc_rx_ep = NULL;
2382
2383 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2384 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2385
2386 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2387 data->isoc_tx_ep = ep_desc;
2388 continue;
2389 }
2390
2391 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2392 data->isoc_rx_ep = ep_desc;
2393 continue;
2394 }
2395 }
2396
2397 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2398 bt_dev_err(hdev, "invalid SCO descriptors");
2399 return -ENODEV;
2400 }
2401
2402 return 0;
2403}
2404
2405static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2406{
2407 struct btusb_data *data = hci_get_drvdata(hdev);
2408 int err;
2409
2410 if (data->isoc_altsetting != new_alts) {
2411 unsigned long flags;
2412
2413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2414 usb_kill_anchored_urbs(&data->isoc_anchor);
2415
2416 /* When isochronous alternate setting needs to be
2417 * changed, because SCO connection has been added
2418 * or removed, a packet fragment may be left in the
2419 * reassembling state. This could lead to wrongly
2420 * assembled fragments.
2421 *
2422 * Clear outstanding fragment when selecting a new
2423 * alternate setting.
2424 */
2425 spin_lock_irqsave(&data->rxlock, flags);
2426 dev_kfree_skb_irq(data->sco_skb);
2427 data->sco_skb = NULL;
2428 spin_unlock_irqrestore(&data->rxlock, flags);
2429
2430 err = __set_isoc_interface(hdev, new_alts);
2431 if (err < 0)
2432 return err;
2433 }
2434
2435 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2436 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2437 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2438 else
2439 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2440 }
2441
2442 return 0;
2443}
2444
2445static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2446 int alt)
2447{
2448 struct usb_interface *intf = data->isoc;
2449 int i;
2450
2451 BT_DBG("Looking for Alt no :%d", alt);
2452
2453 if (!intf)
2454 return NULL;
2455
2456 for (i = 0; i < intf->num_altsetting; i++) {
2457 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2458 return &intf->altsetting[i];
2459 }
2460
2461 return NULL;
2462}
2463
2464static void btusb_work(struct work_struct *work)
2465{
2466 struct btusb_data *data = container_of(work, struct btusb_data, work);
2467 struct hci_dev *hdev = data->hdev;
2468 int new_alts = 0;
2469 int err;
2470
2471 if (data->sco_num > 0) {
2472 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2473 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2474 if (err < 0) {
2475 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2476 usb_kill_anchored_urbs(&data->isoc_anchor);
2477 return;
2478 }
2479
2480 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2481 }
2482
2483 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2484 if (hdev->voice_setting & 0x0020) {
2485 static const int alts[3] = { 2, 4, 5 };
2486 unsigned int sco_idx;
2487
2488 sco_idx = min_t(unsigned int, data->sco_num - 1,
2489 ARRAY_SIZE(alts) - 1);
2490 new_alts = alts[sco_idx];
2491 } else {
2492 new_alts = data->sco_num;
2493 }
2494 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2495 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2496 * many adapters do not support it. Alt 1 appears to
2497 * work for all adapters that do not have alt 6, and
2498 * which work with WBS at all. Some devices prefer
2499 * alt 3 (HCI payload >= 60 Bytes let air packet
2500 * data satisfy 60 bytes), requiring
2501 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2502 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2503 */
2504 if (btusb_find_altsetting(data, 6))
2505 new_alts = 6;
2506 else if (btusb_find_altsetting(data, 3) &&
2507 hdev->sco_mtu >= 72 &&
2508 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2509 new_alts = 3;
2510 else
2511 new_alts = 1;
2512 }
2513
2514 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2515 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2516 } else {
2517 usb_kill_anchored_urbs(&data->isoc_anchor);
2518
2519 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2520 __set_isoc_interface(hdev, 0);
2521
2522 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2523 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2524 }
2525}
2526
2527static void btusb_waker(struct work_struct *work)
2528{
2529 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2530 int err;
2531
2532 err = usb_autopm_get_interface(data->intf);
2533 if (err < 0)
2534 return;
2535
2536 usb_autopm_put_interface(data->intf);
2537}
2538
2539static void btusb_rx_work(struct work_struct *work)
2540{
2541 struct btusb_data *data = container_of(work, struct btusb_data,
2542 rx_work.work);
2543 struct sk_buff *skb;
2544
2545 /* Dequeue ACL data received during the interval */
2546 while ((skb = skb_dequeue(&data->acl_q)))
2547 data->recv_acl(data->hdev, skb);
2548}
2549
2550static int btusb_setup_bcm92035(struct hci_dev *hdev)
2551{
2552 struct sk_buff *skb;
2553 u8 val = 0x00;
2554
2555 BT_DBG("%s", hdev->name);
2556
2557 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2558 if (IS_ERR(skb))
2559 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2560 else
2561 kfree_skb(skb);
2562
2563 return 0;
2564}
2565
2566static int btusb_setup_csr(struct hci_dev *hdev)
2567{
2568 struct btusb_data *data = hci_get_drvdata(hdev);
2569 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2570 struct hci_rp_read_local_version *rp;
2571 struct sk_buff *skb;
2572 bool is_fake = false;
2573 int ret;
2574
2575 BT_DBG("%s", hdev->name);
2576
2577 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2578 HCI_INIT_TIMEOUT);
2579 if (IS_ERR(skb)) {
2580 int err = PTR_ERR(skb);
2581
2582 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2583 return err;
2584 }
2585
2586 rp = skb_pull_data(skb, sizeof(*rp));
2587 if (!rp) {
2588 bt_dev_err(hdev, "CSR: Local version length mismatch");
2589 kfree_skb(skb);
2590 return -EIO;
2591 }
2592
2593 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2594 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2595
2596 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2597 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2598 le16_to_cpu(rp->manufacturer));
2599
2600 /* Detect a wide host of Chinese controllers that aren't CSR.
2601 *
2602 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2603 *
2604 * The main thing they have in common is that these are really popular low-cost
2605 * options that support newer Bluetooth versions but rely on heavy VID/PID
2606 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2607 *
2608 * We detect actual CSR devices by checking that the HCI manufacturer code
2609 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2610 * HCI rev values always match. As they both store the firmware number.
2611 */
2612 if (le16_to_cpu(rp->manufacturer) != 10 ||
2613 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2614 is_fake = true;
2615
2616 /* Known legit CSR firmware build numbers and their supported BT versions:
2617 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2618 * - 1.2 (0x2) -> 0x04d9, 0x0529
2619 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2620 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2621 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2622 *
2623 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2624 * support BT 1.1 only; so it's a dead giveaway when some
2625 * third-party BT 4.0 dongle reuses it.
2626 */
2627 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2628 rp->hci_ver > BLUETOOTH_VER_1_1)
2629 is_fake = true;
2630
2631 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2632 rp->hci_ver > BLUETOOTH_VER_1_2)
2633 is_fake = true;
2634
2635 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2636 rp->hci_ver > BLUETOOTH_VER_2_0)
2637 is_fake = true;
2638
2639 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2640 rp->hci_ver > BLUETOOTH_VER_2_1)
2641 is_fake = true;
2642
2643 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2644 rp->hci_ver > BLUETOOTH_VER_4_0)
2645 is_fake = true;
2646
2647 /* Other clones which beat all the above checks */
2648 else if (bcdDevice == 0x0134 &&
2649 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2650 rp->hci_ver == BLUETOOTH_VER_2_0)
2651 is_fake = true;
2652
2653 if (is_fake) {
2654 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2655
2656 /* Generally these clones have big discrepancies between
2657 * advertised features and what's actually supported.
2658 * Probably will need to be expanded in the future;
2659 * without these the controller will lock up.
2660 */
2661 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
2662 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
2663 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL);
2664 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER);
2665 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING);
2666 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE);
2667
2668 /* Clear the reset quirk since this is not an actual
2669 * early Bluetooth 1.1 device from CSR.
2670 */
2671 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
2672 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
2673
2674 /*
2675 * Special workaround for these BT 4.0 chip clones, and potentially more:
2676 *
2677 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2678 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2679 *
2680 * These controllers are really messed-up.
2681 *
2682 * 1. Their bulk RX endpoint will never report any data unless
2683 * the device was suspended at least once (yes, really).
2684 * 2. They will not wakeup when autosuspended and receiving data
2685 * on their bulk RX endpoint from e.g. a keyboard or mouse
2686 * (IOW remote-wakeup support is broken for the bulk endpoint).
2687 *
2688 * To fix 1. enable runtime-suspend, force-suspend the
2689 * HCI and then wake-it up by disabling runtime-suspend.
2690 *
2691 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2692 * will still be autosuspended when it is not open.
2693 *
2694 * --
2695 *
2696 * Because these are widespread problems we prefer generic solutions; so
2697 * apply this initialization quirk to every controller that gets here,
2698 * it should be harmless. The alternative is to not work at all.
2699 */
2700 pm_runtime_allow(&data->udev->dev);
2701
2702 ret = pm_runtime_suspend(&data->udev->dev);
2703 if (ret >= 0)
2704 msleep(200);
2705 else
2706 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2707
2708 pm_runtime_forbid(&data->udev->dev);
2709
2710 device_set_wakeup_capable(&data->udev->dev, false);
2711
2712 /* Re-enable autosuspend if this was requested */
2713 if (enable_autosuspend)
2714 usb_enable_autosuspend(data->udev);
2715 }
2716
2717 kfree_skb(skb);
2718
2719 return 0;
2720}
2721
2722static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2723{
2724 struct sk_buff *skb;
2725 struct hci_event_hdr *hdr;
2726 struct hci_ev_cmd_complete *evt;
2727
2728 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2729 if (!skb)
2730 return -ENOMEM;
2731
2732 hdr = skb_put(skb, sizeof(*hdr));
2733 hdr->evt = HCI_EV_CMD_COMPLETE;
2734 hdr->plen = sizeof(*evt) + 1;
2735
2736 evt = skb_put(skb, sizeof(*evt));
2737 evt->ncmd = 0x01;
2738 evt->opcode = cpu_to_le16(opcode);
2739
2740 skb_put_u8(skb, 0x00);
2741
2742 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2743
2744 return hci_recv_frame(hdev, skb);
2745}
2746
2747static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2748 int count)
2749{
2750 struct hci_dev *hdev = data->hdev;
2751
2752 /* When the device is in bootloader mode, then it can send
2753 * events via the bulk endpoint. These events are treated the
2754 * same way as the ones received from the interrupt endpoint.
2755 */
2756 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2757 return btusb_recv_intr(data, buffer, count);
2758
2759 return btusb_recv_bulk(data, buffer, count);
2760}
2761
2762static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2763{
2764 struct urb *urb;
2765
2766 BT_DBG("%s", hdev->name);
2767
2768 switch (hci_skb_pkt_type(skb)) {
2769 case HCI_COMMAND_PKT:
2770 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2771 struct hci_command_hdr *cmd = (void *)skb->data;
2772 __u16 opcode = le16_to_cpu(cmd->opcode);
2773
2774 /* When in bootloader mode and the command 0xfc09
2775 * is received, it needs to be send down the
2776 * bulk endpoint. So allocate a bulk URB instead.
2777 */
2778 if (opcode == 0xfc09)
2779 urb = alloc_bulk_urb(hdev, skb);
2780 else
2781 urb = alloc_ctrl_urb(hdev, skb);
2782
2783 /* When the BTINTEL_HCI_OP_RESET command is issued to
2784 * boot into the operational firmware, it will actually
2785 * not send a command complete event. To keep the flow
2786 * control working inject that event here.
2787 */
2788 if (opcode == BTINTEL_HCI_OP_RESET)
2789 inject_cmd_complete(hdev, opcode);
2790 } else {
2791 urb = alloc_ctrl_urb(hdev, skb);
2792 }
2793 if (IS_ERR(urb))
2794 return PTR_ERR(urb);
2795
2796 hdev->stat.cmd_tx++;
2797 return submit_or_queue_tx_urb(hdev, urb);
2798
2799 case HCI_ACLDATA_PKT:
2800 urb = alloc_bulk_urb(hdev, skb);
2801 if (IS_ERR(urb))
2802 return PTR_ERR(urb);
2803
2804 hdev->stat.acl_tx++;
2805 return submit_or_queue_tx_urb(hdev, urb);
2806
2807 case HCI_SCODATA_PKT:
2808 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2809 hci_conn_num(hdev, SCO_LINK) < 1)
2810 return -ENODEV;
2811
2812 urb = alloc_isoc_urb(hdev, skb);
2813 if (IS_ERR(urb))
2814 return PTR_ERR(urb);
2815
2816 hdev->stat.sco_tx++;
2817 return submit_tx_urb(hdev, urb);
2818
2819 case HCI_ISODATA_PKT:
2820 urb = alloc_bulk_urb(hdev, skb);
2821 if (IS_ERR(urb))
2822 return PTR_ERR(urb);
2823
2824 return submit_or_queue_tx_urb(hdev, urb);
2825 }
2826
2827 return -EILSEQ;
2828}
2829
2830static int btusb_setup_realtek(struct hci_dev *hdev)
2831{
2832 struct btusb_data *data = hci_get_drvdata(hdev);
2833 int ret;
2834
2835 ret = btrtl_setup_realtek(hdev);
2836
2837 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2838 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2839
2840 return ret;
2841}
2842
2843static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2844{
2845 if (skb->len >= HCI_EVENT_HDR_SIZE + 1 &&
2846 skb->data[0] == HCI_EV_VENDOR &&
2847 skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2848 struct rtk_dev_coredump_hdr hdr = {
2849 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2850 };
2851
2852 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2853 skb->len);
2854
2855 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2856 kfree_skb(skb);
2857
2858 return 0;
2859 }
2860
2861 return hci_recv_frame(hdev, skb);
2862}
2863
2864static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2865{
2866 struct btmtk_data *btmtk_data;
2867 int err;
2868
2869 if (!data->hdev)
2870 return;
2871
2872 btmtk_data = hci_get_priv(data->hdev);
2873 if (!btmtk_data)
2874 return;
2875
2876 if (!btmtk_data->isopkt_intf) {
2877 bt_dev_err(data->hdev, "Can't claim NULL iso interface");
2878 return;
2879 }
2880
2881 /*
2882 * The function usb_driver_claim_interface() is documented to need
2883 * locks held if it's not called from a probe routine. The code here
2884 * is called from the hci_power_on workqueue, so grab the lock.
2885 */
2886 device_lock(&btmtk_data->isopkt_intf->dev);
2887 err = usb_driver_claim_interface(&btusb_driver,
2888 btmtk_data->isopkt_intf, data);
2889 device_unlock(&btmtk_data->isopkt_intf->dev);
2890 if (err < 0) {
2891 btmtk_data->isopkt_intf = NULL;
2892 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err);
2893 return;
2894 }
2895
2896 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2897 init_usb_anchor(&btmtk_data->isopkt_anchor);
2898}
2899
2900static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2901{
2902 struct btmtk_data *btmtk_data;
2903
2904 if (!hdev)
2905 return;
2906
2907 btmtk_data = hci_get_priv(hdev);
2908 if (!btmtk_data)
2909 return;
2910
2911 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2912 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2913 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2914
2915 if (btmtk_data->isopkt_skb) {
2916 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2917 btmtk_data->isopkt_skb = NULL;
2918 }
2919
2920 if (btmtk_data->isopkt_intf) {
2921 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2922 usb_driver_release_interface(&btusb_driver,
2923 btmtk_data->isopkt_intf);
2924 btmtk_data->isopkt_intf = NULL;
2925 }
2926 }
2927
2928 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2929}
2930
2931static int btusb_mtk_disconnect(struct hci_dev *hdev)
2932{
2933 /* This function describes the specific additional steps taken by MediaTek
2934 * when Bluetooth usb driver's resume function is called.
2935 */
2936 btusb_mtk_release_iso_intf(hdev);
2937
2938 return 0;
2939}
2940
2941static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2942{
2943 struct btusb_data *data = hci_get_drvdata(hdev);
2944 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2945 int err;
2946
2947 /* It's MediaTek specific bluetooth reset mechanism via USB */
2948 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2949 bt_dev_err(hdev, "last reset failed? Not resetting again");
2950 return -EBUSY;
2951 }
2952
2953 err = usb_autopm_get_interface(data->intf);
2954 if (err < 0) {
2955 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
2956 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2957 return err;
2958 }
2959
2960 /* Release MediaTek ISO data interface */
2961 btusb_mtk_release_iso_intf(hdev);
2962
2963 btusb_prepare_reset(hdev);
2964
2965 /* Toggle the hard reset line. The MediaTek device is going to
2966 * yank itself off the USB and then replug. The cleanup is handled
2967 * correctly on the way out (standard USB disconnect), and the new
2968 * device is detected cleanly and bound to the driver again like
2969 * it should be.
2970 */
2971 if (data->reset_gpio) {
2972 gpiod_set_value_cansleep(data->reset_gpio, 1);
2973 msleep(200);
2974 gpiod_set_value_cansleep(data->reset_gpio, 0);
2975 return 0;
2976 }
2977
2978 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2979
2980 if (test_and_set_bit(BTUSB_RESET, &data->flags)) {
2981 bt_dev_err(hdev, "last usb reset failed? Resetting again");
2982 usb_autopm_put_interface_no_suspend(data->intf);
2983 }
2984
2985 usb_queue_reset_device(data->intf);
2986 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2987
2988 return err;
2989}
2990
2991static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2992{
2993 struct urb *urb;
2994
2995 BT_DBG("%s", hdev->name);
2996
2997 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2998 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2999 if (IS_ERR(urb))
3000 return PTR_ERR(urb);
3001
3002 return submit_or_queue_tx_urb(hdev, urb);
3003 } else {
3004 return btusb_send_frame(hdev, skb);
3005 }
3006}
3007
3008static inline bool platform_is_ryzen(void)
3009{
3010#ifdef CONFIG_X86
3011 return boot_cpu_has(X86_FEATURE_ZEN);
3012#else
3013 return false;
3014#endif
3015}
3016
3017static inline bool is_direct_child_of_root_hub(struct usb_device *udev)
3018{
3019 return udev->parent == udev->bus->root_hub;
3020}
3021
3022static int btusb_mtk_setup(struct hci_dev *hdev)
3023{
3024 struct btusb_data *data = hci_get_drvdata(hdev);
3025 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
3026 int err;
3027
3028 /* MediaTek WMT vendor cmd requiring below USB resources to
3029 * complete the handshake.
3030 */
3031 btmtk_data->drv_name = btusb_driver.name;
3032 btmtk_data->intf = data->intf;
3033 btmtk_data->udev = data->udev;
3034 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
3035 btmtk_data->reset_sync = btusb_mtk_reset;
3036
3037 /* Claim ISO data interface and endpoint */
3038 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
3039 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
3040 btusb_mtk_claim_iso_intf(data);
3041 }
3042
3043 err = btmtk_usb_setup(hdev);
3044 if (err)
3045 return err;
3046
3047 switch (btmtk_data->dev_id) {
3048 case 0x7922:
3049 case 0x7925:
3050 /*
3051 * All reports seen to be relevant to Ryzen-based laptops. These
3052 * NICs are usually used as OEM components thanks to some sort
3053 * of reference designs.
3054 *
3055 * Their popularity on other platforms is unclear. While there
3056 * is still a chance that the quirk may exist on other
3057 * platforms, be cautious and only apply the quirk to direct
3058 * children of Ryzen platforms's root hubs for the time being.
3059 *
3060 * In most cases the root hub is on the SoC or PCH, which needs
3061 * the quirk. Unfortunately, this can't distinguish root hubs on
3062 * PCIe add-in cards. Such roughness should be acceptable, as
3063 * PCIe USB controller add-in cards are less commonly used
3064 * nowadays. On the other hand, applying the quirk doesn't hurt
3065 * any functionalities either, as the device can still be used
3066 * as a wakeup source if desired.
3067 *
3068 * Theoretically, we could retrieve the root hub's PCI vendor ID
3069 * with some hierarchy magic, but that's too intrusive...
3070 */
3071 if (platform_is_ryzen() && is_direct_child_of_root_hub(data->udev))
3072 set_bit(BTUSB_WAKEUP_BROKEN, &data->flags);
3073 break;
3074 }
3075
3076 return 0;
3077}
3078
3079static int btusb_mtk_shutdown(struct hci_dev *hdev)
3080{
3081 int ret;
3082
3083 ret = btmtk_usb_shutdown(hdev);
3084
3085 /* Release MediaTek iso interface after shutdown */
3086 btusb_mtk_release_iso_intf(hdev);
3087
3088 return ret;
3089}
3090
3091#ifdef CONFIG_PM
3092/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3093static int marvell_config_oob_wake(struct hci_dev *hdev)
3094{
3095 struct sk_buff *skb;
3096 struct btusb_data *data = hci_get_drvdata(hdev);
3097 struct device *dev = &data->udev->dev;
3098 u16 pin, gap, opcode;
3099 int ret;
3100 u8 cmd[5];
3101
3102 /* Move on if no wakeup pin specified */
3103 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3104 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3105 return 0;
3106
3107 /* Vendor specific command to configure a GPIO as wake-up pin */
3108 opcode = hci_opcode_pack(0x3F, 0x59);
3109 cmd[0] = opcode & 0xFF;
3110 cmd[1] = opcode >> 8;
3111 cmd[2] = 2; /* length of parameters that follow */
3112 cmd[3] = pin;
3113 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3114
3115 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3116 if (!skb) {
3117 bt_dev_err(hdev, "%s: No memory", __func__);
3118 return -ENOMEM;
3119 }
3120
3121 skb_put_data(skb, cmd, sizeof(cmd));
3122 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3123
3124 ret = btusb_send_frame(hdev, skb);
3125 if (ret) {
3126 bt_dev_err(hdev, "%s: configuration failed", __func__);
3127 kfree_skb(skb);
3128 return ret;
3129 }
3130
3131 return 0;
3132}
3133#else
3134static inline int marvell_config_oob_wake(struct hci_dev *hdev)
3135{
3136 return 0;
3137}
3138#endif
3139
3140static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3141 const bdaddr_t *bdaddr)
3142{
3143 struct sk_buff *skb;
3144 u8 buf[8];
3145 long ret;
3146
3147 buf[0] = 0xfe;
3148 buf[1] = sizeof(bdaddr_t);
3149 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3150
3151 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3152 if (IS_ERR(skb)) {
3153 ret = PTR_ERR(skb);
3154 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3155 ret);
3156 return ret;
3157 }
3158 kfree_skb(skb);
3159
3160 return 0;
3161}
3162
3163static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3164 const bdaddr_t *bdaddr)
3165{
3166 struct sk_buff *skb;
3167 u8 buf[10];
3168 long ret;
3169
3170 buf[0] = 0x01;
3171 buf[1] = 0x01;
3172 buf[2] = 0x00;
3173 buf[3] = sizeof(bdaddr_t);
3174 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3175
3176 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3177 if (IS_ERR(skb)) {
3178 ret = PTR_ERR(skb);
3179 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3180 return ret;
3181 }
3182 kfree_skb(skb);
3183
3184 return 0;
3185}
3186
3187static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3188 const bdaddr_t *bdaddr)
3189{
3190 bdaddr_t bdaddr_swapped;
3191 struct sk_buff *skb;
3192 long ret;
3193
3194 baswap(&bdaddr_swapped, bdaddr);
3195
3196 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(bdaddr_swapped),
3197 &bdaddr_swapped, HCI_EV_CMD_COMPLETE,
3198 HCI_INIT_TIMEOUT);
3199 if (IS_ERR(skb)) {
3200 ret = PTR_ERR(skb);
3201 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3202 return ret;
3203 }
3204 kfree_skb(skb);
3205
3206 return 0;
3207}
3208
3209#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3210#define QCA_MEMDUMP_SIZE_MAX 0x100000
3211#define QCA_MEMDUMP_VSE_CLASS 0x01
3212#define QCA_MEMDUMP_MSG_TYPE 0x08
3213#define QCA_MEMDUMP_PKT_SIZE 248
3214#define QCA_LAST_SEQUENCE_NUM 0xffff
3215
3216struct qca_dump_hdr {
3217 u8 vse_class;
3218 u8 msg_type;
3219 __le16 seqno;
3220 u8 reserved;
3221 union {
3222 u8 data[0];
3223 struct {
3224 __le32 ram_dump_size;
3225 u8 data0[0];
3226 } __packed;
3227 };
3228} __packed;
3229
3230
3231static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3232{
3233 char buf[128];
3234 struct btqca_data *btqca_data = hci_get_priv(hdev);
3235 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump;
3236
3237 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3238 qca_dump_ptr->controller_id);
3239 skb_put_data(skb, buf, strlen(buf));
3240
3241 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3242 qca_dump_ptr->fw_version);
3243 skb_put_data(skb, buf, strlen(buf));
3244
3245 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3246 btusb_driver.name);
3247 skb_put_data(skb, buf, strlen(buf));
3248
3249 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3250 qca_dump_ptr->id_vendor, qca_dump_ptr->id_product);
3251 skb_put_data(skb, buf, strlen(buf));
3252
3253 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3254 hdev->lmp_subver);
3255 skb_put_data(skb, buf, strlen(buf));
3256}
3257
3258static void btusb_coredump_qca(struct hci_dev *hdev)
3259{
3260 int err;
3261 static const u8 param[] = { 0x26 };
3262
3263 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3264 if (err < 0)
3265 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3266}
3267
3268/* Return: 0 on success, negative errno on failure. */
3269static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3270{
3271 int ret = 0;
3272 unsigned int skip = 0;
3273 u8 pkt_type;
3274 u16 seqno;
3275 u32 dump_size;
3276
3277 struct qca_dump_hdr *dump_hdr;
3278 struct btusb_data *btdata = hci_get_drvdata(hdev);
3279 struct btqca_data *btqca_data = hci_get_priv(hdev);
3280 struct qca_dump_info *qca_dump_ptr = &btqca_data->qca_dump;
3281 struct usb_device *udev = btdata->udev;
3282
3283 pkt_type = hci_skb_pkt_type(skb);
3284 skip = sizeof(struct hci_event_hdr);
3285 if (pkt_type == HCI_ACLDATA_PKT)
3286 skip += sizeof(struct hci_acl_hdr);
3287
3288 skb_pull(skb, skip);
3289 dump_hdr = (struct qca_dump_hdr *)skb->data;
3290
3291 seqno = le16_to_cpu(dump_hdr->seqno);
3292 if (seqno == 0) {
3293 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3294 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3295 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3296 ret = -EILSEQ;
3297 bt_dev_err(hdev, "Invalid memdump size(%u)",
3298 dump_size);
3299 goto out;
3300 }
3301
3302 ret = hci_devcd_init(hdev, dump_size);
3303 if (ret < 0) {
3304 bt_dev_err(hdev, "memdump init error(%d)", ret);
3305 goto out;
3306 }
3307
3308 qca_dump_ptr->ram_dump_size = dump_size;
3309 qca_dump_ptr->ram_dump_seqno = 0;
3310
3311 skb_pull(skb, offsetof(struct qca_dump_hdr, data0));
3312
3313 usb_disable_autosuspend(udev);
3314 bt_dev_info(hdev, "%s memdump size(%u)\n",
3315 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3316 dump_size);
3317 } else {
3318 skb_pull(skb, offsetof(struct qca_dump_hdr, data));
3319 }
3320
3321 if (!qca_dump_ptr->ram_dump_size) {
3322 ret = -EINVAL;
3323 bt_dev_err(hdev, "memdump is not active");
3324 goto out;
3325 }
3326
3327 if ((seqno > qca_dump_ptr->ram_dump_seqno + 1) && seqno != QCA_LAST_SEQUENCE_NUM) {
3328 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - qca_dump_ptr->ram_dump_seqno - 1);
3329 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3330 bt_dev_err(hdev,
3331 "expected memdump seqno(%u) is not received(%u)\n",
3332 qca_dump_ptr->ram_dump_seqno, seqno);
3333 qca_dump_ptr->ram_dump_seqno = seqno;
3334 kfree_skb(skb);
3335 return ret;
3336 }
3337
3338 hci_devcd_append(hdev, skb);
3339 qca_dump_ptr->ram_dump_seqno++;
3340 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3341 bt_dev_info(hdev,
3342 "memdump done: pkts(%u), total(%u)\n",
3343 qca_dump_ptr->ram_dump_seqno, qca_dump_ptr->ram_dump_size);
3344
3345 hci_devcd_complete(hdev);
3346 goto out;
3347 }
3348 return ret;
3349
3350out:
3351 if (qca_dump_ptr->ram_dump_size)
3352 usb_enable_autosuspend(udev);
3353 qca_dump_ptr->ram_dump_size = 0;
3354 qca_dump_ptr->ram_dump_seqno = 0;
3355 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3356
3357 if (ret < 0)
3358 kfree_skb(skb);
3359 return ret;
3360}
3361
3362/* Return: true if the ACL packet is a dump packet, false otherwise. */
3363static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3364{
3365 struct hci_event_hdr *event_hdr;
3366 struct hci_acl_hdr *acl_hdr;
3367 struct qca_dump_hdr *dump_hdr;
3368 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3369 bool is_dump = false;
3370
3371 if (!clone)
3372 return false;
3373
3374 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr));
3375 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE))
3376 goto out;
3377
3378 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3379 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR)
3380 goto out;
3381
3382 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3383 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3384 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3385 goto out;
3386
3387 is_dump = true;
3388out:
3389 consume_skb(clone);
3390 return is_dump;
3391}
3392
3393/* Return: true if the event packet is a dump packet, false otherwise. */
3394static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3395{
3396 struct hci_event_hdr *event_hdr;
3397 struct qca_dump_hdr *dump_hdr;
3398 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3399 bool is_dump = false;
3400
3401 if (!clone)
3402 return false;
3403
3404 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3405 if (!event_hdr || event_hdr->evt != HCI_EV_VENDOR)
3406 goto out;
3407
3408 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3409 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3410 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3411 goto out;
3412
3413 is_dump = true;
3414out:
3415 consume_skb(clone);
3416 return is_dump;
3417}
3418
3419static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3420{
3421 if (acl_pkt_is_dump_qca(hdev, skb))
3422 return handle_dump_pkt_qca(hdev, skb);
3423 return hci_recv_frame(hdev, skb);
3424}
3425
3426static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3427{
3428 if (evt_pkt_is_dump_qca(hdev, skb))
3429 return handle_dump_pkt_qca(hdev, skb);
3430 return hci_recv_frame(hdev, skb);
3431}
3432
3433
3434#define QCA_DFU_PACKET_LEN 4096
3435
3436#define QCA_GET_TARGET_VERSION 0x09
3437#define QCA_CHECK_STATUS 0x05
3438#define QCA_DFU_DOWNLOAD 0x01
3439
3440#define QCA_SYSCFG_UPDATED 0x40
3441#define QCA_PATCH_UPDATED 0x80
3442#define QCA_DFU_TIMEOUT 3000
3443#define QCA_FLAG_MULTI_NVM 0x80
3444#define QCA_BT_RESET_WAIT_MS 100
3445
3446#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3447#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3448
3449struct qca_version {
3450 __le32 rom_version;
3451 __le32 patch_version;
3452 __le32 ram_version;
3453 __u8 chip_id;
3454 __u8 platform_id;
3455 __le16 flag;
3456 __u8 reserved[4];
3457} __packed;
3458
3459struct qca_rampatch_version {
3460 __le16 rom_version_high;
3461 __le16 rom_version_low;
3462 __le16 patch_version;
3463} __packed;
3464
3465struct qca_device_info {
3466 u32 rom_version;
3467 u8 rampatch_hdr; /* length of header in rampatch */
3468 u8 nvm_hdr; /* length of header in NVM */
3469 u8 ver_offset; /* offset of version structure in rampatch */
3470};
3471
3472struct qca_custom_firmware {
3473 u32 rom_version;
3474 u16 board_id;
3475 const char *subdirectory;
3476};
3477
3478static const struct qca_device_info qca_devices_table[] = {
3479 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3480 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3481 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3482 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3483 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3484 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3485 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3486 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3487 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3488 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3489};
3490
3491static const struct qca_custom_firmware qca_custom_btfws[] = {
3492 { 0x00130201, 0x030A, "QCA2066" },
3493 { 0x00130201, 0x030B, "QCA2066" },
3494 { },
3495};
3496
3497static u16 qca_extract_board_id(const struct qca_version *ver)
3498{
3499 u16 flag = le16_to_cpu(ver->flag);
3500 u16 board_id = 0;
3501
3502 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3503 /* The board_id should be split into two bytes
3504 * The 1st byte is chip ID, and the 2nd byte is platform ID
3505 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3506 * we have several platforms, and platform IDs are continuously added
3507 * Platform ID:
3508 * 0x00 is for Mobile
3509 * 0x01 is for X86
3510 * 0x02 is for Automotive
3511 * 0x03 is for Consumer electronic
3512 */
3513 board_id = (ver->chip_id << 8) + ver->platform_id;
3514 }
3515
3516 /* Take 0xffff as invalid board ID */
3517 if (board_id == 0xffff)
3518 board_id = 0;
3519
3520 return board_id;
3521}
3522
3523static const char *qca_get_fw_subdirectory(const struct qca_version *ver)
3524{
3525 const struct qca_custom_firmware *ptr;
3526 u32 rom_ver;
3527 u16 board_id;
3528
3529 rom_ver = le32_to_cpu(ver->rom_version);
3530 board_id = qca_extract_board_id(ver);
3531 if (!board_id)
3532 return NULL;
3533
3534 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) {
3535 if (ptr->rom_version == rom_ver &&
3536 ptr->board_id == board_id)
3537 return ptr->subdirectory;
3538 }
3539
3540 return NULL;
3541}
3542
3543static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3544 void *data, u16 size)
3545{
3546 int err;
3547
3548 /* Found some of USB hosts have IOT issues with ours so that we should
3549 * not wait until HCI layer is ready.
3550 */
3551 err = usb_control_msg_recv(udev, 0, request, USB_TYPE_VENDOR | USB_DIR_IN,
3552 0, 0, data, size, USB_CTRL_GET_TIMEOUT,
3553 GFP_KERNEL);
3554 if (err)
3555 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3556
3557 return err;
3558}
3559
3560static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3561 const struct firmware *firmware,
3562 size_t hdr_size)
3563{
3564 struct btusb_data *btdata = hci_get_drvdata(hdev);
3565 struct usb_device *udev = btdata->udev;
3566 size_t count, size, sent = 0;
3567 int pipe, len, err;
3568 u8 *buf;
3569
3570 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3571 if (!buf)
3572 return -ENOMEM;
3573
3574 count = firmware->size;
3575
3576 size = min_t(size_t, count, hdr_size);
3577 memcpy(buf, firmware->data, size);
3578
3579 /* USB patches should go down to controller through USB path
3580 * because binary format fits to go down through USB channel.
3581 * USB control path is for patching headers and USB bulk is for
3582 * patch body.
3583 */
3584 pipe = usb_sndctrlpipe(udev, 0);
3585 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3586 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3587 if (err < 0) {
3588 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3589 goto done;
3590 }
3591
3592 sent += size;
3593 count -= size;
3594
3595 /* ep2 need time to switch from function acl to function dfu,
3596 * so we add 20ms delay here.
3597 */
3598 msleep(20);
3599
3600 while (count) {
3601 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3602
3603 memcpy(buf, firmware->data + sent, size);
3604
3605 pipe = usb_sndbulkpipe(udev, 0x02);
3606 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3607 QCA_DFU_TIMEOUT);
3608 if (err < 0) {
3609 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3610 sent, firmware->size, err);
3611 break;
3612 }
3613
3614 if (size != len) {
3615 bt_dev_err(hdev, "Failed to get bulk buffer");
3616 err = -EILSEQ;
3617 break;
3618 }
3619
3620 sent += size;
3621 count -= size;
3622 }
3623
3624done:
3625 kfree(buf);
3626 return err;
3627}
3628
3629static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3630 struct qca_version *ver,
3631 const struct qca_device_info *info)
3632{
3633 struct qca_rampatch_version *rver;
3634 const struct firmware *fw;
3635 const char *fw_subdir;
3636 u32 ver_rom, ver_patch, rver_rom;
3637 u16 rver_rom_low, rver_rom_high, rver_patch;
3638 char fwname[80];
3639 int err;
3640
3641 ver_rom = le32_to_cpu(ver->rom_version);
3642 ver_patch = le32_to_cpu(ver->patch_version);
3643
3644 fw_subdir = qca_get_fw_subdirectory(ver);
3645 if (fw_subdir)
3646 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin",
3647 fw_subdir, ver_rom);
3648 else
3649 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin",
3650 ver_rom);
3651
3652 err = request_firmware(&fw, fwname, &hdev->dev);
3653 if (err) {
3654 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3655 fwname, err);
3656 return err;
3657 }
3658
3659 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3660
3661 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3662 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3663 rver_patch = le16_to_cpu(rver->patch_version);
3664
3665 if (ver_rom & ~0xffffU) {
3666 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3667 rver_rom = rver_rom_high << 16 | rver_rom_low;
3668 } else {
3669 rver_rom = rver_rom_low;
3670 }
3671
3672 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3673 "firmware rome 0x%x build 0x%x",
3674 rver_rom, rver_patch, ver_rom, ver_patch);
3675
3676 /* Allow rampatch when the patch version equals the firmware version.
3677 * A firmware download may be aborted by a transient USB error (e.g.
3678 * disconnect) after the controller updates version info but before
3679 * completion.
3680 * Allowing equal versions enables re-flashing during recovery.
3681 */
3682 if (rver_rom != ver_rom || rver_patch < ver_patch) {
3683 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3684 err = -EINVAL;
3685 goto done;
3686 }
3687
3688 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3689
3690done:
3691 release_firmware(fw);
3692
3693 return err;
3694}
3695
3696static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3697 const struct qca_version *ver)
3698{
3699 u32 rom_version = le32_to_cpu(ver->rom_version);
3700 const char *variant, *fw_subdir;
3701 int len;
3702 u16 board_id;
3703
3704 fw_subdir = qca_get_fw_subdirectory(ver);
3705 board_id = qca_extract_board_id(ver);
3706
3707 switch (le32_to_cpu(ver->ram_version)) {
3708 case WCN6855_2_0_RAM_VERSION_GF:
3709 case WCN6855_2_1_RAM_VERSION_GF:
3710 variant = "_gf";
3711 break;
3712 default:
3713 variant = NULL;
3714 break;
3715 }
3716
3717 if (fw_subdir)
3718 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x",
3719 fw_subdir, rom_version);
3720 else
3721 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x",
3722 rom_version);
3723 if (variant)
3724 len += snprintf(fwname + len, max_size - len, "%s", variant);
3725 if (board_id)
3726 len += snprintf(fwname + len, max_size - len, "_%04x", board_id);
3727 len += snprintf(fwname + len, max_size - len, ".bin");
3728}
3729
3730static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3731 struct qca_version *ver,
3732 const struct qca_device_info *info)
3733{
3734 const struct firmware *fw;
3735 char fwname[80];
3736 int err;
3737
3738 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3739
3740 err = request_firmware(&fw, fwname, &hdev->dev);
3741 if (err) {
3742 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3743 fwname, err);
3744 return err;
3745 }
3746
3747 bt_dev_info(hdev, "using NVM file: %s", fwname);
3748
3749 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3750
3751 release_firmware(fw);
3752
3753 return err;
3754}
3755
3756/* identify the ROM version and check whether patches are needed */
3757static bool btusb_qca_need_patch(struct usb_device *udev)
3758{
3759 struct qca_version ver;
3760
3761 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3762 sizeof(ver)))
3763 return false;
3764 /* only low ROM versions need patches */
3765 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3766}
3767
3768static int btusb_setup_qca(struct hci_dev *hdev)
3769{
3770 struct btusb_data *btdata = hci_get_drvdata(hdev);
3771 struct usb_device *udev = btdata->udev;
3772 const struct qca_device_info *info = NULL;
3773 struct qca_version ver;
3774 u32 ver_rom;
3775 u8 status;
3776 int i, err;
3777
3778 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3779 sizeof(ver));
3780 if (err)
3781 return err;
3782
3783 ver_rom = le32_to_cpu(ver.rom_version);
3784
3785 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3786 if (ver_rom == qca_devices_table[i].rom_version)
3787 info = &qca_devices_table[i];
3788 }
3789 if (!info) {
3790 /* If the rom_version is not matched in the qca_devices_table
3791 * and the high ROM version is not zero, we assume this chip no
3792 * need to load the rampatch and nvm.
3793 */
3794 if (ver_rom & ~0xffffU)
3795 return 0;
3796
3797 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3798 return -ENODEV;
3799 }
3800
3801 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3802 sizeof(status));
3803 if (err)
3804 return err;
3805
3806 if (!(status & QCA_PATCH_UPDATED)) {
3807 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3808 if (err < 0)
3809 return err;
3810 }
3811
3812 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3813 sizeof(ver));
3814 if (err)
3815 return err;
3816
3817 if (btdata->match_id->driver_info & BTUSB_QCA_WCN6855) {
3818 struct btqca_data *btqca_data = hci_get_priv(hdev);
3819
3820 btqca_data->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3821 btqca_data->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3822 }
3823
3824 if (!(status & QCA_SYSCFG_UPDATED)) {
3825 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3826 if (err < 0)
3827 return err;
3828
3829 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3830 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3831 * cause potential enable failure.
3832 */
3833 if (info->rom_version >= 0x00130201)
3834 msleep(QCA_BT_RESET_WAIT_MS);
3835 }
3836
3837 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3838 * work with the likes of HSP/HFP mSBC.
3839 */
3840 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
3841
3842 return 0;
3843}
3844
3845static inline int __set_diag_interface(struct hci_dev *hdev)
3846{
3847 struct btusb_data *data = hci_get_drvdata(hdev);
3848 struct usb_interface *intf = data->diag;
3849 int ret;
3850
3851 if (!data->diag)
3852 return -ENODEV;
3853
3854 ret = usb_find_common_endpoints(intf->cur_altsetting, &data->diag_rx_ep,
3855 &data->diag_tx_ep, NULL, NULL);
3856 if (ret) {
3857 bt_dev_err(hdev, "invalid diagnostic descriptors");
3858 return -ENODEV;
3859 }
3860
3861 return 0;
3862}
3863
3864static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3865{
3866 struct btusb_data *data = hci_get_drvdata(hdev);
3867 struct sk_buff *skb;
3868 struct urb *urb;
3869 unsigned int pipe;
3870
3871 if (!data->diag_tx_ep)
3872 return ERR_PTR(-ENODEV);
3873
3874 urb = usb_alloc_urb(0, GFP_KERNEL);
3875 if (!urb)
3876 return ERR_PTR(-ENOMEM);
3877
3878 skb = bt_skb_alloc(2, GFP_KERNEL);
3879 if (!skb) {
3880 usb_free_urb(urb);
3881 return ERR_PTR(-ENOMEM);
3882 }
3883
3884 skb_put_u8(skb, 0xf0);
3885 skb_put_u8(skb, enable);
3886
3887 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3888
3889 usb_fill_bulk_urb(urb, data->udev, pipe,
3890 skb->data, skb->len, btusb_tx_complete, skb);
3891
3892 skb->dev = (void *)hdev;
3893
3894 return urb;
3895}
3896
3897static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3898{
3899 struct btusb_data *data = hci_get_drvdata(hdev);
3900 struct urb *urb;
3901
3902 if (!data->diag)
3903 return -ENODEV;
3904
3905 if (!test_bit(HCI_RUNNING, &hdev->flags))
3906 return -ENETDOWN;
3907
3908 urb = alloc_diag_urb(hdev, enable);
3909 if (IS_ERR(urb))
3910 return PTR_ERR(urb);
3911
3912 return submit_or_queue_tx_urb(hdev, urb);
3913}
3914
3915#ifdef CONFIG_PM
3916static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3917{
3918 struct btusb_data *data = priv;
3919
3920 pm_wakeup_event(&data->udev->dev, 0);
3921 pm_system_wakeup();
3922
3923 /* Disable only if not already disabled (keep it balanced) */
3924 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3925 disable_irq_nosync(irq);
3926 disable_irq_wake(irq);
3927 }
3928 return IRQ_HANDLED;
3929}
3930
3931static const struct of_device_id btusb_match_table[] = {
3932 { .compatible = "usb1286,204e" },
3933 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3934 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3935 { }
3936};
3937MODULE_DEVICE_TABLE(of, btusb_match_table);
3938
3939/* Use an oob wakeup pin? */
3940static int btusb_config_oob_wake(struct hci_dev *hdev)
3941{
3942 struct btusb_data *data = hci_get_drvdata(hdev);
3943 struct device *dev = &data->udev->dev;
3944 int irq, ret;
3945
3946 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3947
3948 if (!of_match_device(btusb_match_table, dev))
3949 return 0;
3950
3951 /* Move on if no IRQ specified */
3952 irq = of_irq_get_byname(dev->of_node, "wakeup");
3953 if (irq <= 0) {
3954 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3955 return 0;
3956 }
3957
3958 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3959 ret = request_irq(irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data);
3960 if (ret) {
3961 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3962 return ret;
3963 }
3964
3965 ret = device_init_wakeup(dev, true);
3966 if (ret) {
3967 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3968 goto err_free_irq;
3969 }
3970
3971 data->oob_wake_irq = irq;
3972 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3973
3974 return 0;
3975
3976err_free_irq:
3977 free_irq(irq, data);
3978
3979 return ret;
3980}
3981#else
3982static inline int btusb_config_oob_wake(struct hci_dev *hdev)
3983{
3984 return 0;
3985}
3986#endif
3987
3988static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3989{
3990 if (dmi_check_system(btusb_needs_reset_resume_table))
3991 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3992}
3993
3994static bool btusb_wakeup(struct hci_dev *hdev)
3995{
3996 struct btusb_data *data = hci_get_drvdata(hdev);
3997
3998 return device_may_wakeup(&data->udev->dev);
3999}
4000
4001static int btusb_shutdown_qca(struct hci_dev *hdev)
4002{
4003 int err;
4004
4005 err = __hci_reset_sync(hdev);
4006 if (err)
4007 bt_dev_err(hdev, "HCI reset during shutdown failed");
4008
4009 return err;
4010}
4011
4012static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4013 size_t count, loff_t *ppos)
4014{
4015 struct btusb_data *data = file->private_data;
4016 char buf[3];
4017
4018 buf[0] = data->poll_sync ? 'Y' : 'N';
4019 buf[1] = '\n';
4020 buf[2] = '\0';
4021 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4022}
4023
4024static ssize_t force_poll_sync_write(struct file *file,
4025 const char __user *user_buf,
4026 size_t count, loff_t *ppos)
4027{
4028 struct btusb_data *data = file->private_data;
4029 bool enable;
4030 int err;
4031
4032 err = kstrtobool_from_user(user_buf, count, &enable);
4033 if (err)
4034 return err;
4035
4036 /* Only allow changes while the adapter is down */
4037 if (test_bit(HCI_UP, &data->hdev->flags))
4038 return -EPERM;
4039
4040 if (data->poll_sync == enable)
4041 return -EALREADY;
4042
4043 data->poll_sync = enable;
4044
4045 return count;
4046}
4047
4048static const struct file_operations force_poll_sync_fops = {
4049 .owner = THIS_MODULE,
4050 .open = simple_open,
4051 .read = force_poll_sync_read,
4052 .write = force_poll_sync_write,
4053 .llseek = default_llseek,
4054};
4055
4056#define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \
4057 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000)
4058#define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0
4059struct btusb_hci_drv_rp_supported_altsettings {
4060 __u8 num;
4061 __u8 altsettings[];
4062} __packed;
4063
4064#define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \
4065 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001)
4066#define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1
4067struct btusb_hci_drv_cmd_switch_altsetting {
4068 __u8 altsetting;
4069} __packed;
4070
4071static const struct {
4072 u16 opcode;
4073 const char *desc;
4074} btusb_hci_drv_supported_commands[] = {
4075 /* Common commands */
4076 { HCI_DRV_OP_READ_INFO, "Read Info" },
4077
4078 /* Driver specific commands */
4079 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" },
4080 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" },
4081};
4082static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data,
4083 u16 data_len)
4084{
4085 struct hci_drv_rp_read_info *rp;
4086 size_t rp_size;
4087 int err, i;
4088 u16 opcode, num_supported_commands =
4089 ARRAY_SIZE(btusb_hci_drv_supported_commands);
4090
4091 rp_size = sizeof(*rp) + num_supported_commands * 2;
4092
4093 rp = kmalloc(rp_size, GFP_KERNEL);
4094 if (!rp)
4095 return -ENOMEM;
4096
4097 strscpy_pad(rp->driver_name, btusb_driver.name);
4098
4099 rp->num_supported_commands = cpu_to_le16(num_supported_commands);
4100 for (i = 0; i < num_supported_commands; i++) {
4101 opcode = btusb_hci_drv_supported_commands[i].opcode;
4102 bt_dev_info(hdev,
4103 "Supported HCI Drv command (0x%02x|0x%04x): %s",
4104 hci_opcode_ogf(opcode),
4105 hci_opcode_ocf(opcode),
4106 btusb_hci_drv_supported_commands[i].desc);
4107 rp->supported_commands[i] = cpu_to_le16(opcode);
4108 }
4109
4110 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO,
4111 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
4112
4113 kfree(rp);
4114 return err;
4115}
4116
4117static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data,
4118 u16 data_len)
4119{
4120 struct btusb_data *drvdata = hci_get_drvdata(hdev);
4121 struct btusb_hci_drv_rp_supported_altsettings *rp;
4122 size_t rp_size;
4123 int err;
4124 u8 i;
4125
4126 /* There are at most 7 alt (0 - 6) */
4127 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL);
4128 if (!rp)
4129 return -ENOMEM;
4130
4131 rp->num = 0;
4132 if (!drvdata->isoc)
4133 goto done;
4134
4135 for (i = 0; i <= 6; i++) {
4136 if (btusb_find_altsetting(drvdata, i))
4137 rp->altsettings[rp->num++] = i;
4138 }
4139
4140done:
4141 rp_size = sizeof(*rp) + rp->num;
4142
4143 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS,
4144 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
4145 kfree(rp);
4146 return err;
4147}
4148
4149static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data,
4150 u16 data_len)
4151{
4152 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data;
4153 u8 status;
4154
4155 if (cmd->altsetting > 6) {
4156 status = HCI_DRV_STATUS_INVALID_PARAMETERS;
4157 } else {
4158 if (btusb_switch_alt_setting(hdev, cmd->altsetting))
4159 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR;
4160 else
4161 status = HCI_DRV_STATUS_SUCCESS;
4162 }
4163
4164 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING,
4165 status);
4166}
4167
4168static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = {
4169 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE },
4170};
4171
4172static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = {
4173 { btusb_hci_drv_supported_altsettings,
4174 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE },
4175 { btusb_hci_drv_switch_altsetting,
4176 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE },
4177};
4178
4179static struct hci_drv btusb_hci_drv = {
4180 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers),
4181 .common_handlers = btusb_hci_drv_common_handlers,
4182 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers),
4183 .specific_handlers = btusb_hci_drv_specific_handlers,
4184};
4185
4186static int btusb_probe(struct usb_interface *intf,
4187 const struct usb_device_id *id)
4188{
4189 struct gpio_desc *reset_gpio;
4190 struct btusb_data *data;
4191 struct hci_dev *hdev;
4192 unsigned ifnum_base;
4193 int err, priv_size = 0;
4194
4195 BT_DBG("intf %p id %p", intf, id);
4196
4197 if ((id->driver_info & BTUSB_IFNUM_2) &&
4198 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4199 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4200 return -ENODEV;
4201
4202 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4203
4204 if (!id->driver_info) {
4205 const struct usb_device_id *match;
4206
4207 match = usb_match_id(intf, quirks_table);
4208 if (match)
4209 id = match;
4210 }
4211
4212 if (id->driver_info & BTUSB_IGNORE)
4213 return -ENODEV;
4214
4215 if (id->driver_info & BTUSB_ATH3012) {
4216 struct usb_device *udev = interface_to_usbdev(intf);
4217
4218 /* Old firmware would otherwise let ath3k driver load
4219 * patch and sysconfig files
4220 */
4221 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4222 !btusb_qca_need_patch(udev))
4223 return -ENODEV;
4224 }
4225
4226 data = kzalloc_obj(*data);
4227 if (!data)
4228 return -ENOMEM;
4229
4230 data->match_id = id;
4231 err = usb_find_common_endpoints(intf->cur_altsetting, &data->bulk_rx_ep,
4232 &data->bulk_tx_ep, &data->intr_ep, NULL);
4233 if (err)
4234 goto err_free_data;
4235
4236 if (id->driver_info & BTUSB_AMP) {
4237 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4238 data->cmdreq = 0x2b;
4239 } else {
4240 data->cmdreq_type = USB_TYPE_CLASS;
4241 data->cmdreq = 0x00;
4242 }
4243
4244 data->udev = interface_to_usbdev(intf);
4245 data->intf = intf;
4246
4247 INIT_WORK(&data->work, btusb_work);
4248 INIT_WORK(&data->waker, btusb_waker);
4249 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4250
4251 skb_queue_head_init(&data->acl_q);
4252
4253 init_usb_anchor(&data->deferred);
4254 init_usb_anchor(&data->tx_anchor);
4255 spin_lock_init(&data->txlock);
4256
4257 init_usb_anchor(&data->intr_anchor);
4258 init_usb_anchor(&data->bulk_anchor);
4259 init_usb_anchor(&data->isoc_anchor);
4260 init_usb_anchor(&data->diag_anchor);
4261 init_usb_anchor(&data->ctrl_anchor);
4262 spin_lock_init(&data->rxlock);
4263
4264 data->recv_event = hci_recv_frame;
4265 data->recv_bulk = btusb_recv_bulk;
4266
4267 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4268 /* Allocate extra space for Intel device */
4269 priv_size += sizeof(struct btintel_data);
4270
4271 /* Override the rx handlers */
4272 data->recv_event = btintel_recv_event;
4273 data->recv_bulk = btusb_recv_bulk_intel;
4274 } else if (id->driver_info & BTUSB_REALTEK) {
4275 /* Allocate extra space for Realtek device */
4276 priv_size += sizeof(struct btrealtek_data);
4277
4278 data->recv_event = btusb_recv_event_realtek;
4279 } else if (id->driver_info & BTUSB_MEDIATEK) {
4280 /* Allocate extra space for Mediatek device */
4281 priv_size += sizeof(struct btmtk_data);
4282 } else if (id->driver_info & BTUSB_QCA_WCN6855) {
4283 /* Allocate extra space for QCA WCN6855 device */
4284 priv_size += sizeof(struct btqca_data);
4285 }
4286
4287 data->recv_acl = hci_recv_frame;
4288
4289 hdev = hci_alloc_dev_priv(priv_size);
4290 if (!hdev) {
4291 err = -ENOMEM;
4292 goto err_free_data;
4293 }
4294
4295 hdev->bus = HCI_USB;
4296 hci_set_drvdata(hdev, data);
4297
4298 data->hdev = hdev;
4299
4300 SET_HCIDEV_DEV(hdev, &intf->dev);
4301
4302 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4303 GPIOD_OUT_LOW);
4304 if (IS_ERR(reset_gpio)) {
4305 err = PTR_ERR(reset_gpio);
4306 goto err_free_hdev;
4307 } else if (reset_gpio) {
4308 data->reset_gpio = reset_gpio;
4309 }
4310
4311 hdev->open = btusb_open;
4312 hdev->close = btusb_close;
4313 hdev->flush = btusb_flush;
4314 hdev->send = btusb_send_frame;
4315 hdev->notify = btusb_notify;
4316 hdev->wakeup = btusb_wakeup;
4317 hdev->hci_drv = &btusb_hci_drv;
4318
4319 err = btusb_config_oob_wake(hdev);
4320 if (err)
4321 goto err_put_reset;
4322
4323 /* Marvell devices may need a specific chip configuration */
4324 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4325 err = marvell_config_oob_wake(hdev);
4326 if (err)
4327 goto err_disable_wakeup;
4328 }
4329
4330 if (id->driver_info & BTUSB_CW6622)
4331 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4332
4333 if (id->driver_info & BTUSB_BCM2045)
4334 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4335
4336 if (id->driver_info & BTUSB_BCM92035)
4337 hdev->setup = btusb_setup_bcm92035;
4338
4339 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4340 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4341 hdev->manufacturer = 15;
4342 hdev->setup = btbcm_setup_patchram;
4343 hdev->set_diag = btusb_bcm_set_diag;
4344 hdev->set_bdaddr = btbcm_set_bdaddr;
4345
4346 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4347 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4348 }
4349
4350 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4351 (id->driver_info & BTUSB_BCM_APPLE)) {
4352 hdev->manufacturer = 15;
4353 hdev->setup = btbcm_setup_apple;
4354 hdev->set_diag = btusb_bcm_set_diag;
4355
4356 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4357 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4358 }
4359
4360 /* Combined Intel Device setup to support multiple setup routine */
4361 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4362 err = btintel_configure_setup(hdev, btusb_driver.name);
4363 if (err)
4364 goto err_kill_tx_urbs;
4365
4366 /* Transport specific configuration */
4367 hdev->send = btusb_send_frame_intel;
4368 hdev->reset = btusb_intel_reset;
4369
4370 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4371 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4372
4373 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4374 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4375
4376 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4377 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4378 }
4379
4380 if (id->driver_info & BTUSB_MARVELL)
4381 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4382
4383 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4384 (id->driver_info & BTUSB_MEDIATEK)) {
4385 hdev->setup = btusb_mtk_setup;
4386 hdev->shutdown = btusb_mtk_shutdown;
4387 hdev->manufacturer = 70;
4388 hdev->reset = btmtk_reset_sync;
4389 hdev->set_bdaddr = btmtk_set_bdaddr;
4390 hdev->send = btusb_send_frame_mtk;
4391 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
4392 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP);
4393 data->recv_acl = btmtk_usb_recv_acl;
4394 data->recv_event = btmtk_recv_event;
4395 data->suspend = btmtk_usb_suspend;
4396 data->resume = btmtk_usb_resume;
4397 data->disconnect = btusb_mtk_disconnect;
4398 }
4399
4400 if (id->driver_info & BTUSB_SWAVE) {
4401 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE);
4402 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS);
4403 }
4404
4405 if (id->driver_info & BTUSB_INTEL_BOOT) {
4406 hdev->manufacturer = 2;
4407 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4408 }
4409
4410 if (id->driver_info & BTUSB_ATH3012) {
4411 data->setup_on_usb = btusb_setup_qca;
4412 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4413 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4414 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER);
4415 }
4416
4417 if (id->driver_info & BTUSB_QCA_ROME) {
4418 data->setup_on_usb = btusb_setup_qca;
4419 hdev->shutdown = btusb_shutdown_qca;
4420 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4421 hdev->reset = btusb_qca_reset;
4422 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4423 btusb_check_needs_reset_resume(intf);
4424 }
4425
4426 if (id->driver_info & BTUSB_QCA_WCN6855) {
4427 struct btqca_data *btqca_data = hci_get_priv(hdev);
4428
4429 btqca_data->qca_dump.id_vendor = id->idVendor;
4430 btqca_data->qca_dump.id_product = id->idProduct;
4431 data->recv_event = btusb_recv_evt_qca;
4432 data->recv_acl = btusb_recv_acl_qca;
4433 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4434 data->setup_on_usb = btusb_setup_qca;
4435 hdev->classify_pkt_type = btusb_classify_qca_pkt_type;
4436 hdev->shutdown = btusb_shutdown_qca;
4437 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4438 hdev->reset = btusb_qca_reset;
4439 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4440 hci_set_msft_opcode(hdev, 0xFD70);
4441 }
4442
4443 if (id->driver_info & BTUSB_AMP) {
4444 /* AMP controllers do not support SCO packets */
4445 data->isoc = NULL;
4446 } else {
4447 /* Interface orders are hardcoded in the specification */
4448 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4449 data->isoc_ifnum = ifnum_base + 1;
4450 }
4451
4452 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4453 (id->driver_info & BTUSB_REALTEK)) {
4454 btrtl_set_driver_name(hdev, btusb_driver.name);
4455 hdev->setup = btusb_setup_realtek;
4456 hdev->shutdown = btrtl_shutdown_realtek;
4457 hdev->reset = btusb_rtl_reset;
4458 hdev->hw_error = btusb_rtl_hw_error;
4459
4460 /* Realtek devices need to set remote wakeup on auto-suspend */
4461 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4462 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4463 }
4464
4465 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4466 /* Support is advertised, but not implemented */
4467 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
4468 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER);
4469 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT);
4470 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN);
4471 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE);
4472 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN);
4473 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT);
4474 }
4475
4476 if (!reset)
4477 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4478
4479 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4480 if (!disable_scofix)
4481 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE);
4482 }
4483
4484 if (id->driver_info & BTUSB_BROKEN_ISOC)
4485 data->isoc = NULL;
4486
4487 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4488 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
4489
4490 if (id->driver_info & BTUSB_INVALID_LE_STATES)
4491 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES);
4492
4493 if (id->driver_info & BTUSB_BROKEN_EXT_SCAN)
4494 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN);
4495
4496 if (id->driver_info & BTUSB_DIGIANSWER) {
4497 data->cmdreq_type = USB_TYPE_VENDOR;
4498 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4499 }
4500
4501 if (id->driver_info & BTUSB_CSR) {
4502 struct usb_device *udev = data->udev;
4503 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4504
4505 /* Old firmware would otherwise execute USB reset */
4506 if (bcdDevice < 0x117)
4507 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4508
4509 /* This must be set first in case we disable it for fakes */
4510 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4511
4512 /* Fake CSR devices with broken commands */
4513 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4514 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4515 hdev->setup = btusb_setup_csr;
4516 }
4517
4518 if (id->driver_info & BTUSB_SNIFFER) {
4519 struct usb_device *udev = data->udev;
4520
4521 /* New sniffer firmware has crippled HCI interface */
4522 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4523 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4524 }
4525
4526 if (id->driver_info & BTUSB_INTEL_BOOT) {
4527 /* A bug in the bootloader causes that interrupt interface is
4528 * only enabled after receiving SetInterface(0, AltSetting=0).
4529 */
4530 err = usb_set_interface(data->udev, 0, 0);
4531 if (err < 0) {
4532 BT_ERR("failed to set interface 0, alt 0 %d", err);
4533 goto err_kill_tx_urbs;
4534 }
4535 }
4536
4537 if (data->isoc) {
4538 err = usb_driver_claim_interface(&btusb_driver,
4539 data->isoc, data);
4540 if (err < 0)
4541 goto err_kill_tx_urbs;
4542 }
4543
4544 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4545 if (!usb_driver_claim_interface(&btusb_driver,
4546 data->diag, data))
4547 __set_diag_interface(hdev);
4548 else
4549 data->diag = NULL;
4550 }
4551
4552 if (enable_autosuspend)
4553 usb_enable_autosuspend(data->udev);
4554
4555 data->poll_sync = enable_poll_sync;
4556
4557 err = hci_register_dev(hdev);
4558 if (err < 0)
4559 goto err_release_siblings;
4560
4561 usb_set_intfdata(intf, data);
4562
4563 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4564 &force_poll_sync_fops);
4565
4566 return 0;
4567
4568err_release_siblings:
4569 if (data->diag) {
4570 usb_set_intfdata(data->diag, NULL);
4571 usb_driver_release_interface(&btusb_driver, data->diag);
4572 }
4573 if (data->isoc) {
4574 usb_set_intfdata(data->isoc, NULL);
4575 usb_driver_release_interface(&btusb_driver, data->isoc);
4576 }
4577err_kill_tx_urbs:
4578 usb_kill_anchored_urbs(&data->tx_anchor);
4579err_disable_wakeup:
4580 if (data->oob_wake_irq) {
4581 device_init_wakeup(&data->udev->dev, false);
4582 free_irq(data->oob_wake_irq, data);
4583 }
4584err_put_reset:
4585 if (data->reset_gpio)
4586 gpiod_put(data->reset_gpio);
4587err_free_hdev:
4588 hci_free_dev(hdev);
4589err_free_data:
4590 kfree(data);
4591
4592 return err;
4593}
4594
4595static void btusb_disconnect(struct usb_interface *intf)
4596{
4597 struct btusb_data *data = usb_get_intfdata(intf);
4598 struct hci_dev *hdev;
4599
4600 BT_DBG("intf %p", intf);
4601
4602 if (!data)
4603 return;
4604
4605 hdev = data->hdev;
4606 usb_set_intfdata(data->intf, NULL);
4607
4608 if (data->isoc)
4609 usb_set_intfdata(data->isoc, NULL);
4610
4611 if (data->diag)
4612 usb_set_intfdata(data->diag, NULL);
4613
4614 if (data->disconnect)
4615 data->disconnect(hdev);
4616
4617 hci_unregister_dev(hdev);
4618
4619 if (data->oob_wake_irq) {
4620 device_init_wakeup(&data->udev->dev, false);
4621 free_irq(data->oob_wake_irq, data);
4622 }
4623
4624 if (data->reset_gpio)
4625 gpiod_put(data->reset_gpio);
4626
4627 if (test_and_clear_bit(BTUSB_RESET, &data->flags))
4628 usb_autopm_put_interface_no_suspend(data->intf);
4629
4630 if (intf == data->intf) {
4631 if (data->isoc)
4632 usb_driver_release_interface(&btusb_driver, data->isoc);
4633 if (data->diag)
4634 usb_driver_release_interface(&btusb_driver, data->diag);
4635 } else if (intf == data->isoc) {
4636 if (data->diag)
4637 usb_driver_release_interface(&btusb_driver, data->diag);
4638 usb_driver_release_interface(&btusb_driver, data->intf);
4639 } else if (intf == data->diag) {
4640 if (data->isoc)
4641 usb_driver_release_interface(&btusb_driver, data->isoc);
4642 usb_driver_release_interface(&btusb_driver, data->intf);
4643 }
4644
4645 hci_free_dev(hdev);
4646 kfree(data);
4647}
4648
4649static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4650{
4651 struct btusb_data *data = usb_get_intfdata(intf);
4652
4653 BT_DBG("intf %p", intf);
4654
4655 /*
4656 * It is reported that remote wakeup events could sometimes cause some
4657 * adapters completely unresponsive. Resetting the xHCI root hub doesn't
4658 * help at all, and recovering from such a state needs a power cycle.
4659 * Since disabling remote wakeup simply causes the USB core to gate
4660 * runtime autosuspend as well due to needs_remote_wakeup == 1, let's do
4661 * this ourselves to make our life easier. The interface can be safely
4662 * autosuspended as long as remote wakeup is disabled, i.e., after
4663 * closing the HCI device.
4664 *
4665 * Don't auto-suspend if there are connections or discovery in progress.
4666 *
4667 * External suspend calls shall never fail. Specifically, a device with
4668 * broken remote wakeup may still take the advantage of remote wakeup in
4669 * order to wake up the system from sleep if userspace has enabled it as
4670 * a wakeup source.
4671 */
4672 if (PMSG_IS_AUTO(message) &&
4673 ((test_bit(BTUSB_WAKEUP_BROKEN, &data->flags) && data->intf->needs_remote_wakeup) ||
4674 hci_conn_count(data->hdev) || hci_discovery_active(data->hdev)))
4675 return -EBUSY;
4676
4677 if (data->suspend_count++)
4678 return 0;
4679
4680 spin_lock_irq(&data->txlock);
4681 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4682 set_bit(BTUSB_SUSPENDING, &data->flags);
4683 spin_unlock_irq(&data->txlock);
4684 } else {
4685 spin_unlock_irq(&data->txlock);
4686 data->suspend_count--;
4687 return -EBUSY;
4688 }
4689
4690 cancel_work_sync(&data->work);
4691
4692 if (data->suspend)
4693 data->suspend(data->hdev);
4694
4695 btusb_stop_traffic(data);
4696 usb_kill_anchored_urbs(&data->tx_anchor);
4697
4698 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4699 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4700 enable_irq_wake(data->oob_wake_irq);
4701 enable_irq(data->oob_wake_irq);
4702 }
4703
4704 /* For global suspend, Realtek devices lose the loaded fw
4705 * in them. But for autosuspend, firmware should remain.
4706 * Actually, it depends on whether the usb host sends
4707 * set feature (enable wakeup) or not.
4708 */
4709 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4710 if (PMSG_IS_AUTO(message) &&
4711 device_can_wakeup(&data->udev->dev))
4712 data->udev->do_remote_wakeup = 1;
4713 else if (!PMSG_IS_AUTO(message) &&
4714 !device_may_wakeup(&data->udev->dev)) {
4715 data->udev->do_remote_wakeup = 0;
4716 data->udev->reset_resume = 1;
4717 }
4718 }
4719
4720 return 0;
4721}
4722
4723static void play_deferred(struct btusb_data *data)
4724{
4725 struct urb *urb;
4726 int err;
4727
4728 while ((urb = usb_get_from_anchor(&data->deferred))) {
4729 usb_anchor_urb(urb, &data->tx_anchor);
4730
4731 err = usb_submit_urb(urb, GFP_ATOMIC);
4732 if (err < 0) {
4733 if (err != -EPERM && err != -ENODEV)
4734 BT_ERR("%s urb %p submission failed (%d)",
4735 data->hdev->name, urb, -err);
4736 kfree(urb->setup_packet);
4737 usb_unanchor_urb(urb);
4738 usb_free_urb(urb);
4739 break;
4740 }
4741
4742 data->tx_in_flight++;
4743 usb_free_urb(urb);
4744 }
4745
4746 /* Cleanup the rest deferred urbs. */
4747 while ((urb = usb_get_from_anchor(&data->deferred))) {
4748 kfree(urb->setup_packet);
4749 usb_free_urb(urb);
4750 }
4751}
4752
4753static int btusb_resume(struct usb_interface *intf)
4754{
4755 struct btusb_data *data = usb_get_intfdata(intf);
4756 struct hci_dev *hdev = data->hdev;
4757 int err = 0;
4758
4759 BT_DBG("intf %p", intf);
4760
4761 if (--data->suspend_count)
4762 return 0;
4763
4764 /* Disable only if not already disabled (keep it balanced) */
4765 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4766 disable_irq(data->oob_wake_irq);
4767 disable_irq_wake(data->oob_wake_irq);
4768 }
4769
4770 if (!test_bit(HCI_RUNNING, &hdev->flags))
4771 goto done;
4772
4773 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4774 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4775 if (err < 0) {
4776 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4777 goto failed;
4778 }
4779 }
4780
4781 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4782 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4783 if (err < 0) {
4784 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4785 goto failed;
4786 }
4787
4788 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4789 }
4790
4791 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4792 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4793 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4794 else
4795 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4796 }
4797
4798 if (data->resume)
4799 data->resume(hdev);
4800
4801 spin_lock_irq(&data->txlock);
4802 play_deferred(data);
4803 clear_bit(BTUSB_SUSPENDING, &data->flags);
4804 spin_unlock_irq(&data->txlock);
4805 schedule_work(&data->work);
4806
4807 return 0;
4808
4809failed:
4810 usb_scuttle_anchored_urbs(&data->deferred);
4811done:
4812 spin_lock_irq(&data->txlock);
4813 clear_bit(BTUSB_SUSPENDING, &data->flags);
4814 spin_unlock_irq(&data->txlock);
4815
4816 return err;
4817}
4818
4819#ifdef CONFIG_DEV_COREDUMP
4820static void btusb_coredump(struct device *dev)
4821{
4822 struct btusb_data *data = dev_get_drvdata(dev);
4823 struct hci_dev *hdev = data->hdev;
4824
4825 if (hdev->dump.coredump)
4826 hdev->dump.coredump(hdev);
4827}
4828#endif
4829
4830static struct usb_driver btusb_driver = {
4831 .name = "btusb",
4832 .probe = btusb_probe,
4833 .disconnect = btusb_disconnect,
4834 .suspend = pm_ptr(btusb_suspend),
4835 .resume = pm_ptr(btusb_resume),
4836 .id_table = btusb_table,
4837 .supports_autosuspend = 1,
4838 .disable_hub_initiated_lpm = 1,
4839
4840#ifdef CONFIG_DEV_COREDUMP
4841 .driver = {
4842 .coredump = btusb_coredump,
4843 },
4844#endif
4845};
4846
4847module_usb_driver(btusb_driver);
4848
4849module_param(disable_scofix, bool, 0644);
4850MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4851
4852module_param(force_scofix, bool, 0644);
4853MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4854
4855module_param(enable_autosuspend, bool, 0644);
4856MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4857
4858module_param(reset, bool, 0644);
4859MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4860
4861MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
4862MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4863MODULE_VERSION(VERSION);
4864MODULE_LICENSE("GPL");