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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <linux/debugfs.h>
20#include <linux/unaligned.h>
21
22#include <net/bluetooth/bluetooth.h>
23#include <net/bluetooth/hci_core.h>
24
25#include "btintel.h"
26#include "btbcm.h"
27#include "btrtl.h"
28#include "btmtk.h"
29
30#define VERSION "0.8"
31
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE BIT(0)
41#define BTUSB_DIGIANSWER BIT(1)
42#define BTUSB_CSR BIT(2)
43#define BTUSB_SNIFFER BIT(3)
44#define BTUSB_BCM92035 BIT(4)
45#define BTUSB_BROKEN_ISOC BIT(5)
46#define BTUSB_WRONG_SCO_MTU BIT(6)
47#define BTUSB_ATH3012 BIT(7)
48#define BTUSB_INTEL_COMBINED BIT(8)
49#define BTUSB_INTEL_BOOT BIT(9)
50#define BTUSB_BCM_PATCHRAM BIT(10)
51#define BTUSB_MARVELL BIT(11)
52#define BTUSB_SWAVE BIT(12)
53#define BTUSB_AMP BIT(13)
54#define BTUSB_QCA_ROME BIT(14)
55#define BTUSB_BCM_APPLE BIT(15)
56#define BTUSB_REALTEK BIT(16)
57#define BTUSB_BCM2045 BIT(17)
58#define BTUSB_IFNUM_2 BIT(18)
59#define BTUSB_CW6622 BIT(19)
60#define BTUSB_MEDIATEK BIT(20)
61#define BTUSB_WIDEBAND_SPEECH BIT(21)
62#define BTUSB_INVALID_LE_STATES BIT(22)
63#define BTUSB_QCA_WCN6855 BIT(23)
64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67#define BTUSB_ACTIONS_SEMI BIT(27)
68
69static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
75
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
78
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
82
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
85
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
88
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
91
92 /* Apple iMac11,1 */
93 { USB_DEVICE(0x05ac, 0x8215) },
94
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
97
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
100
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
103
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
106
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
109
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
112
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
115
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
119
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
122
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172
173 { } /* Terminating entry */
174};
175
176MODULE_DEVICE_TABLE(usb, btusb_table);
177
178static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH },
302 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH },
304 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
305 BTUSB_WIDEBAND_SPEECH },
306 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH },
308 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH },
310 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
311 BTUSB_WIDEBAND_SPEECH },
312 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH },
314 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH },
316 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
317 BTUSB_WIDEBAND_SPEECH },
318 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH },
320 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH },
322 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
323 BTUSB_WIDEBAND_SPEECH },
324 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH },
326 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH },
328 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
329 BTUSB_WIDEBAND_SPEECH },
330 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH },
332 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH },
334 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
335 BTUSB_WIDEBAND_SPEECH },
336 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH },
338 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH },
340 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
341 BTUSB_WIDEBAND_SPEECH },
342 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH },
344 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH },
346 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
347 BTUSB_WIDEBAND_SPEECH },
348 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH },
350 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH },
352 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
353 BTUSB_WIDEBAND_SPEECH },
354 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH },
356 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH },
358 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
359 BTUSB_WIDEBAND_SPEECH },
360 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH },
362 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH },
364 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
365 BTUSB_WIDEBAND_SPEECH },
366 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH },
368 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH },
370
371 /* QCA WCN785x chipset */
372 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH },
374 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
375 BTUSB_WIDEBAND_SPEECH },
376 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
377 BTUSB_WIDEBAND_SPEECH },
378 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH },
380 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH },
382
383 /* Broadcom BCM2035 */
384 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
385 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
386 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
387
388 /* Broadcom BCM2045 */
389 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
390 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
391
392 /* IBM/Lenovo ThinkPad with Broadcom chip */
393 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
394 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
395
396 /* HP laptop with Broadcom chip */
397 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
398
399 /* Dell laptop with Broadcom chip */
400 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
401
402 /* Dell Wireless 370 and 410 devices */
403 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
404 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
405
406 /* Belkin F8T012 and F8T013 devices */
407 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
408 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
409
410 /* Asus WL-BTD202 device */
411 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
412
413 /* Kensington Bluetooth USB adapter */
414 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* RTX Telecom based adapters with buggy SCO support */
417 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
418 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
419
420 /* CONWISE Technology based adapters with buggy SCO support */
421 { USB_DEVICE(0x0e5e, 0x6622),
422 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
423
424 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
425 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
426
427 /* Digianswer devices */
428 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
429 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
430
431 /* CSR BlueCore Bluetooth Sniffer */
432 { USB_DEVICE(0x0a12, 0x0002),
433 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
434
435 /* Frontline ComProbe Bluetooth Sniffer */
436 { USB_DEVICE(0x16d3, 0x0002),
437 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
438
439 /* Marvell Bluetooth devices */
440 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
441 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
442 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
443
444 /* Intel Bluetooth devices */
445 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
446 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
447 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
448 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
449 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
450 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
451 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
452 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
453 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
454 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
455 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
456 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
457 BTUSB_INTEL_NO_WBS_SUPPORT |
458 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
459 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
460 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
461 BTUSB_INTEL_NO_WBS_SUPPORT |
462 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
463 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
464 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
465 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
466 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
467
468 /* Other Intel Bluetooth devices */
469 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
470 .driver_info = BTUSB_IGNORE },
471
472 /* Realtek 8821CE Bluetooth devices */
473 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
474 BTUSB_WIDEBAND_SPEECH },
475
476 /* Realtek 8822CE Bluetooth devices */
477 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
478 BTUSB_WIDEBAND_SPEECH },
479 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
480 BTUSB_WIDEBAND_SPEECH },
481
482 /* Realtek 8822CU Bluetooth devices */
483 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
484 BTUSB_WIDEBAND_SPEECH },
485
486 /* Realtek 8852AE Bluetooth devices */
487 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
488 BTUSB_WIDEBAND_SPEECH },
489 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
490 BTUSB_WIDEBAND_SPEECH },
491 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
492 BTUSB_WIDEBAND_SPEECH },
493 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
494 BTUSB_WIDEBAND_SPEECH },
495 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
496 BTUSB_WIDEBAND_SPEECH },
497 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
498 BTUSB_WIDEBAND_SPEECH },
499 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8852CE Bluetooth devices */
503 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
508 BTUSB_WIDEBAND_SPEECH },
509 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517
518 /* Realtek 8852BE Bluetooth devices */
519 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
528 BTUSB_WIDEBAND_SPEECH },
529 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539
540 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
541 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
542 BTUSB_WIDEBAND_SPEECH },
543
544 /* Realtek 8922AE Bluetooth devices */
545 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553
554 /* Realtek Bluetooth devices */
555 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
556 .driver_info = BTUSB_REALTEK },
557
558 /* MediaTek Bluetooth devices */
559 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
560 .driver_info = BTUSB_MEDIATEK |
561 BTUSB_WIDEBAND_SPEECH },
562
563 /* Additional MediaTek MT7615E Bluetooth devices */
564 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
565
566 /* Additional MediaTek MT7663 Bluetooth devices */
567 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
568 BTUSB_WIDEBAND_SPEECH },
569 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
570 BTUSB_WIDEBAND_SPEECH },
571
572 /* Additional MediaTek MT7668 Bluetooth devices */
573 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
574 BTUSB_WIDEBAND_SPEECH },
575
576 /* Additional MediaTek MT7920 Bluetooth devices */
577 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
578 BTUSB_WIDEBAND_SPEECH },
579 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
580 BTUSB_WIDEBAND_SPEECH },
581 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH },
583 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH },
585
586 /* Additional MediaTek MT7921 Bluetooth devices */
587 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH },
589 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
590 BTUSB_WIDEBAND_SPEECH },
591 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
592 BTUSB_WIDEBAND_SPEECH },
593 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
594 BTUSB_WIDEBAND_SPEECH },
595 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH },
597 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
598 BTUSB_WIDEBAND_SPEECH },
599 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
600 BTUSB_WIDEBAND_SPEECH },
601 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH },
603 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
604 BTUSB_WIDEBAND_SPEECH },
605 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH },
607 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH },
609 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
610 BTUSB_WIDEBAND_SPEECH },
611
612 /* MediaTek MT7922 Bluetooth devices */
613 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH },
615 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH },
617
618 /* MediaTek MT7922A Bluetooth devices */
619 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
620 BTUSB_WIDEBAND_SPEECH },
621 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH },
623 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
624 BTUSB_WIDEBAND_SPEECH },
625 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
626 BTUSB_WIDEBAND_SPEECH },
627 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH },
629 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
630 BTUSB_WIDEBAND_SPEECH },
631 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
632 BTUSB_WIDEBAND_SPEECH },
633 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH },
635 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
636 BTUSB_WIDEBAND_SPEECH },
637 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
638 BTUSB_WIDEBAND_SPEECH },
639 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH },
641 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
642 BTUSB_WIDEBAND_SPEECH },
643 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
644 BTUSB_WIDEBAND_SPEECH },
645 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH },
647 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
648 BTUSB_WIDEBAND_SPEECH },
649 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
650 BTUSB_WIDEBAND_SPEECH },
651 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
652 BTUSB_WIDEBAND_SPEECH },
653
654 /* Additional MediaTek MT7925 Bluetooth devices */
655 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
656 BTUSB_WIDEBAND_SPEECH },
657 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
658 BTUSB_WIDEBAND_SPEECH },
659 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
660 BTUSB_WIDEBAND_SPEECH },
661 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
666 BTUSB_WIDEBAND_SPEECH },
667 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
668 BTUSB_WIDEBAND_SPEECH },
669 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
670 BTUSB_WIDEBAND_SPEECH },
671 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
672 BTUSB_WIDEBAND_SPEECH },
673 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
678 BTUSB_WIDEBAND_SPEECH },
679 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
680 BTUSB_WIDEBAND_SPEECH },
681 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
682 BTUSB_WIDEBAND_SPEECH },
683
684 /* Additional Realtek 8723AE Bluetooth devices */
685 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
686 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
687
688 /* Additional Realtek 8723BE Bluetooth devices */
689 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
690 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
691 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
692 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
693 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
694 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
695 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
696
697 /* Additional Realtek 8723BU Bluetooth devices */
698 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
699
700 /* Additional Realtek 8723DE Bluetooth devices */
701 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
702 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
703
704 /* Additional Realtek 8761BUV Bluetooth devices */
705 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
706 BTUSB_WIDEBAND_SPEECH },
707 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
708 BTUSB_WIDEBAND_SPEECH },
709 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
710 BTUSB_WIDEBAND_SPEECH },
711 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
712 BTUSB_WIDEBAND_SPEECH },
713 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
714 BTUSB_WIDEBAND_SPEECH },
715 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
716 BTUSB_WIDEBAND_SPEECH },
717 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
718 BTUSB_WIDEBAND_SPEECH },
719
720 /* Additional Realtek 8821AE Bluetooth devices */
721 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
722 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
723 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
724 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
725 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
726
727 /* Additional Realtek 8822BE Bluetooth devices */
728 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
729 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
730
731 /* Additional Realtek 8822CE Bluetooth devices */
732 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
753 BTUSB_WIDEBAND_SPEECH },
754
755 /* Actions Semiconductor ATS2851 based devices */
756 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
757
758 /* Silicon Wave based devices */
759 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
760
761 { } /* Terminating entry */
762};
763
764/* The Bluetooth USB module build into some devices needs to be reset on resume,
765 * this is a problem with the platform (likely shutting off all power) not with
766 * the module itself. So we use a DMI list to match known broken platforms.
767 */
768static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
769 {
770 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
771 .matches = {
772 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
773 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
774 },
775 },
776 {
777 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
778 .matches = {
779 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
780 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
781 },
782 },
783 {
784 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
785 .matches = {
786 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
787 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
788 },
789 },
790 {}
791};
792
793struct qca_dump_info {
794 /* fields for dump collection */
795 u16 id_vendor;
796 u16 id_product;
797 u32 fw_version;
798 u32 controller_id;
799 u32 ram_dump_size;
800 u16 ram_dump_seqno;
801};
802
803#define BTUSB_MAX_ISOC_FRAMES 10
804
805#define BTUSB_INTR_RUNNING 0
806#define BTUSB_BULK_RUNNING 1
807#define BTUSB_ISOC_RUNNING 2
808#define BTUSB_SUSPENDING 3
809#define BTUSB_DID_ISO_RESUME 4
810#define BTUSB_BOOTLOADER 5
811#define BTUSB_DOWNLOADING 6
812#define BTUSB_FIRMWARE_LOADED 7
813#define BTUSB_FIRMWARE_FAILED 8
814#define BTUSB_BOOTING 9
815#define BTUSB_DIAG_RUNNING 10
816#define BTUSB_OOB_WAKE_ENABLED 11
817#define BTUSB_HW_RESET_ACTIVE 12
818#define BTUSB_TX_WAIT_VND_EVT 13
819#define BTUSB_WAKEUP_AUTOSUSPEND 14
820#define BTUSB_USE_ALT3_FOR_WBS 15
821#define BTUSB_ALT6_CONTINUOUS_TX 16
822#define BTUSB_HW_SSR_ACTIVE 17
823
824struct btusb_data {
825 struct hci_dev *hdev;
826 struct usb_device *udev;
827 struct usb_interface *intf;
828 struct usb_interface *isoc;
829 struct usb_interface *diag;
830 unsigned isoc_ifnum;
831
832 unsigned long flags;
833
834 bool poll_sync;
835 int intr_interval;
836 struct work_struct work;
837 struct work_struct waker;
838 struct delayed_work rx_work;
839
840 struct sk_buff_head acl_q;
841
842 struct usb_anchor deferred;
843 struct usb_anchor tx_anchor;
844 int tx_in_flight;
845 spinlock_t txlock;
846
847 struct usb_anchor intr_anchor;
848 struct usb_anchor bulk_anchor;
849 struct usb_anchor isoc_anchor;
850 struct usb_anchor diag_anchor;
851 struct usb_anchor ctrl_anchor;
852 spinlock_t rxlock;
853
854 struct sk_buff *evt_skb;
855 struct sk_buff *acl_skb;
856 struct sk_buff *sco_skb;
857
858 struct usb_endpoint_descriptor *intr_ep;
859 struct usb_endpoint_descriptor *bulk_tx_ep;
860 struct usb_endpoint_descriptor *bulk_rx_ep;
861 struct usb_endpoint_descriptor *isoc_tx_ep;
862 struct usb_endpoint_descriptor *isoc_rx_ep;
863 struct usb_endpoint_descriptor *diag_tx_ep;
864 struct usb_endpoint_descriptor *diag_rx_ep;
865
866 struct gpio_desc *reset_gpio;
867
868 __u8 cmdreq_type;
869 __u8 cmdreq;
870
871 unsigned int sco_num;
872 unsigned int air_mode;
873 bool usb_alt6_packet_flow;
874 int isoc_altsetting;
875 int suspend_count;
876
877 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
878 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
879 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
880
881 int (*setup_on_usb)(struct hci_dev *hdev);
882
883 int (*suspend)(struct hci_dev *hdev);
884 int (*resume)(struct hci_dev *hdev);
885 int (*disconnect)(struct hci_dev *hdev);
886
887 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
888 unsigned cmd_timeout_cnt;
889
890 struct qca_dump_info qca_dump;
891};
892
893static void btusb_reset(struct hci_dev *hdev)
894{
895 struct btusb_data *data;
896 int err;
897
898 if (hdev->reset) {
899 hdev->reset(hdev);
900 return;
901 }
902
903 data = hci_get_drvdata(hdev);
904 /* This is not an unbalanced PM reference since the device will reset */
905 err = usb_autopm_get_interface(data->intf);
906 if (err) {
907 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
908 return;
909 }
910
911 bt_dev_err(hdev, "Resetting usb device.");
912 usb_queue_reset_device(data->intf);
913}
914
915static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
916{
917 struct btusb_data *data = hci_get_drvdata(hdev);
918 struct gpio_desc *reset_gpio = data->reset_gpio;
919 struct btintel_data *intel_data = hci_get_priv(hdev);
920
921 if (++data->cmd_timeout_cnt < 5)
922 return;
923
924 if (intel_data->acpi_reset_method) {
925 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
926 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
927 return;
928 }
929
930 bt_dev_err(hdev, "Initiating acpi reset method");
931 /* If ACPI reset method fails, lets try with legacy GPIO
932 * toggling
933 */
934 if (!intel_data->acpi_reset_method(hdev)) {
935 return;
936 }
937 }
938
939 if (!reset_gpio) {
940 btusb_reset(hdev);
941 return;
942 }
943
944 /*
945 * Toggle the hard reset line if the platform provides one. The reset
946 * is going to yank the device off the USB and then replug. So doing
947 * once is enough. The cleanup is handled correctly on the way out
948 * (standard USB disconnect), and the new device is detected cleanly
949 * and bound to the driver again like it should be.
950 */
951 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
952 bt_dev_err(hdev, "last reset failed? Not resetting again");
953 return;
954 }
955
956 bt_dev_err(hdev, "Initiating HW reset via gpio");
957 gpiod_set_value_cansleep(reset_gpio, 1);
958 msleep(100);
959 gpiod_set_value_cansleep(reset_gpio, 0);
960}
961
962#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
963#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
964#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
965
966#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
967
968struct rtk_dev_coredump_hdr {
969 u8 type;
970 u8 code;
971 u8 reserved[2];
972} __packed;
973
974static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
975 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
976{
977 struct sk_buff *skb;
978
979 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
980 if (!skb)
981 return;
982
983 skb_put_data(skb, hdr, sizeof(*hdr));
984 if (len)
985 skb_put_data(skb, buf, len);
986
987 if (!hci_devcd_init(hdev, skb->len)) {
988 hci_devcd_append(hdev, skb);
989 hci_devcd_complete(hdev);
990 } else {
991 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
992 kfree_skb(skb);
993 }
994}
995
996static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
997{
998 struct btusb_data *data = hci_get_drvdata(hdev);
999 struct gpio_desc *reset_gpio = data->reset_gpio;
1000 struct rtk_dev_coredump_hdr hdr = {
1001 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1002 };
1003
1004 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1005
1006 if (++data->cmd_timeout_cnt < 5)
1007 return;
1008
1009 if (!reset_gpio) {
1010 btusb_reset(hdev);
1011 return;
1012 }
1013
1014 /* Toggle the hard reset line. The Realtek device is going to
1015 * yank itself off the USB and then replug. The cleanup is handled
1016 * correctly on the way out (standard USB disconnect), and the new
1017 * device is detected cleanly and bound to the driver again like
1018 * it should be.
1019 */
1020 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1021 bt_dev_err(hdev, "last reset failed? Not resetting again");
1022 return;
1023 }
1024
1025 bt_dev_err(hdev, "Reset Realtek device via gpio");
1026 gpiod_set_value_cansleep(reset_gpio, 1);
1027 msleep(200);
1028 gpiod_set_value_cansleep(reset_gpio, 0);
1029}
1030
1031static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1032{
1033 struct rtk_dev_coredump_hdr hdr = {
1034 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1035 .code = code,
1036 };
1037
1038 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1039
1040 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1041}
1042
1043static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1044{
1045 struct btusb_data *data = hci_get_drvdata(hdev);
1046 struct gpio_desc *reset_gpio = data->reset_gpio;
1047
1048 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1049 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1050 return;
1051 }
1052
1053 if (++data->cmd_timeout_cnt < 5)
1054 return;
1055
1056 if (reset_gpio) {
1057 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1058
1059 /* Toggle the hard reset line. The qca bt device is going to
1060 * yank itself off the USB and then replug. The cleanup is handled
1061 * correctly on the way out (standard USB disconnect), and the new
1062 * device is detected cleanly and bound to the driver again like
1063 * it should be.
1064 */
1065 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1066 bt_dev_err(hdev, "last reset failed? Not resetting again");
1067 return;
1068 }
1069
1070 gpiod_set_value_cansleep(reset_gpio, 0);
1071 msleep(200);
1072 gpiod_set_value_cansleep(reset_gpio, 1);
1073
1074 return;
1075 }
1076
1077 btusb_reset(hdev);
1078}
1079
1080static inline void btusb_free_frags(struct btusb_data *data)
1081{
1082 unsigned long flags;
1083
1084 spin_lock_irqsave(&data->rxlock, flags);
1085
1086 dev_kfree_skb_irq(data->evt_skb);
1087 data->evt_skb = NULL;
1088
1089 dev_kfree_skb_irq(data->acl_skb);
1090 data->acl_skb = NULL;
1091
1092 dev_kfree_skb_irq(data->sco_skb);
1093 data->sco_skb = NULL;
1094
1095 spin_unlock_irqrestore(&data->rxlock, flags);
1096}
1097
1098static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1099{
1100 if (data->intr_interval) {
1101 /* Trigger dequeue immediately if an event is received */
1102 schedule_delayed_work(&data->rx_work, 0);
1103 }
1104
1105 return data->recv_event(data->hdev, skb);
1106}
1107
1108static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1109{
1110 struct sk_buff *skb;
1111 unsigned long flags;
1112 int err = 0;
1113
1114 spin_lock_irqsave(&data->rxlock, flags);
1115 skb = data->evt_skb;
1116
1117 while (count) {
1118 int len;
1119
1120 if (!skb) {
1121 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1122 if (!skb) {
1123 err = -ENOMEM;
1124 break;
1125 }
1126
1127 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1128 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1129 }
1130
1131 len = min_t(uint, hci_skb_expect(skb), count);
1132 skb_put_data(skb, buffer, len);
1133
1134 count -= len;
1135 buffer += len;
1136 hci_skb_expect(skb) -= len;
1137
1138 if (skb->len == HCI_EVENT_HDR_SIZE) {
1139 /* Complete event header */
1140 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1141
1142 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1143 kfree_skb(skb);
1144 skb = NULL;
1145
1146 err = -EILSEQ;
1147 break;
1148 }
1149 }
1150
1151 if (!hci_skb_expect(skb)) {
1152 /* Complete frame */
1153 btusb_recv_event(data, skb);
1154 skb = NULL;
1155 }
1156 }
1157
1158 data->evt_skb = skb;
1159 spin_unlock_irqrestore(&data->rxlock, flags);
1160
1161 return err;
1162}
1163
1164static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1165{
1166 /* Only queue ACL packet if intr_interval is set as it means
1167 * force_poll_sync has been enabled.
1168 */
1169 if (!data->intr_interval)
1170 return data->recv_acl(data->hdev, skb);
1171
1172 skb_queue_tail(&data->acl_q, skb);
1173 schedule_delayed_work(&data->rx_work, data->intr_interval);
1174
1175 return 0;
1176}
1177
1178static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1179{
1180 struct sk_buff *skb;
1181 unsigned long flags;
1182 int err = 0;
1183
1184 spin_lock_irqsave(&data->rxlock, flags);
1185 skb = data->acl_skb;
1186
1187 while (count) {
1188 int len;
1189
1190 if (!skb) {
1191 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1192 if (!skb) {
1193 err = -ENOMEM;
1194 break;
1195 }
1196
1197 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1198 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1199 }
1200
1201 len = min_t(uint, hci_skb_expect(skb), count);
1202 skb_put_data(skb, buffer, len);
1203
1204 count -= len;
1205 buffer += len;
1206 hci_skb_expect(skb) -= len;
1207
1208 if (skb->len == HCI_ACL_HDR_SIZE) {
1209 __le16 dlen = hci_acl_hdr(skb)->dlen;
1210
1211 /* Complete ACL header */
1212 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1213
1214 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1215 kfree_skb(skb);
1216 skb = NULL;
1217
1218 err = -EILSEQ;
1219 break;
1220 }
1221 }
1222
1223 if (!hci_skb_expect(skb)) {
1224 /* Complete frame */
1225 btusb_recv_acl(data, skb);
1226 skb = NULL;
1227 }
1228 }
1229
1230 data->acl_skb = skb;
1231 spin_unlock_irqrestore(&data->rxlock, flags);
1232
1233 return err;
1234}
1235
1236static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1237 struct hci_sco_hdr *hdr)
1238{
1239 __u16 handle;
1240
1241 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1242 // Can't validate, userspace controls everything.
1243 return true;
1244
1245 /*
1246 * USB isochronous transfers are not designed to be reliable and may
1247 * lose fragments. When this happens, the next first fragment
1248 * encountered might actually be a continuation fragment.
1249 * Validate the handle to detect it and drop it, or else the upper
1250 * layer will get garbage for a while.
1251 */
1252
1253 handle = hci_handle(__le16_to_cpu(hdr->handle));
1254
1255 switch (hci_conn_lookup_type(hdev, handle)) {
1256 case SCO_LINK:
1257 case ESCO_LINK:
1258 return true;
1259 default:
1260 return false;
1261 }
1262}
1263
1264static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1265{
1266 struct sk_buff *skb;
1267 unsigned long flags;
1268 int err = 0;
1269
1270 spin_lock_irqsave(&data->rxlock, flags);
1271 skb = data->sco_skb;
1272
1273 while (count) {
1274 int len;
1275
1276 if (!skb) {
1277 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1278 if (!skb) {
1279 err = -ENOMEM;
1280 break;
1281 }
1282
1283 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1284 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1285 }
1286
1287 len = min_t(uint, hci_skb_expect(skb), count);
1288 skb_put_data(skb, buffer, len);
1289
1290 count -= len;
1291 buffer += len;
1292 hci_skb_expect(skb) -= len;
1293
1294 if (skb->len == HCI_SCO_HDR_SIZE) {
1295 /* Complete SCO header */
1296 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1297
1298 hci_skb_expect(skb) = hdr->dlen;
1299
1300 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1301 !btusb_validate_sco_handle(data->hdev, hdr)) {
1302 kfree_skb(skb);
1303 skb = NULL;
1304
1305 err = -EILSEQ;
1306 break;
1307 }
1308 }
1309
1310 if (!hci_skb_expect(skb)) {
1311 /* Complete frame */
1312 hci_recv_frame(data->hdev, skb);
1313 skb = NULL;
1314 }
1315 }
1316
1317 data->sco_skb = skb;
1318 spin_unlock_irqrestore(&data->rxlock, flags);
1319
1320 return err;
1321}
1322
1323static void btusb_intr_complete(struct urb *urb)
1324{
1325 struct hci_dev *hdev = urb->context;
1326 struct btusb_data *data = hci_get_drvdata(hdev);
1327 int err;
1328
1329 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1330 urb->actual_length);
1331
1332 if (!test_bit(HCI_RUNNING, &hdev->flags))
1333 return;
1334
1335 if (urb->status == 0) {
1336 hdev->stat.byte_rx += urb->actual_length;
1337
1338 if (btusb_recv_intr(data, urb->transfer_buffer,
1339 urb->actual_length) < 0) {
1340 bt_dev_err(hdev, "corrupted event packet");
1341 hdev->stat.err_rx++;
1342 }
1343 } else if (urb->status == -ENOENT) {
1344 /* Avoid suspend failed when usb_kill_urb */
1345 return;
1346 }
1347
1348 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1349 return;
1350
1351 usb_mark_last_busy(data->udev);
1352 usb_anchor_urb(urb, &data->intr_anchor);
1353
1354 err = usb_submit_urb(urb, GFP_ATOMIC);
1355 if (err < 0) {
1356 /* -EPERM: urb is being killed;
1357 * -ENODEV: device got disconnected
1358 */
1359 if (err != -EPERM && err != -ENODEV)
1360 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1361 urb, -err);
1362 if (err != -EPERM)
1363 hci_cmd_sync_cancel(hdev, -err);
1364 usb_unanchor_urb(urb);
1365 }
1366}
1367
1368static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1369{
1370 struct btusb_data *data = hci_get_drvdata(hdev);
1371 struct urb *urb;
1372 unsigned char *buf;
1373 unsigned int pipe;
1374 int err, size;
1375
1376 BT_DBG("%s", hdev->name);
1377
1378 if (!data->intr_ep)
1379 return -ENODEV;
1380
1381 urb = usb_alloc_urb(0, mem_flags);
1382 if (!urb)
1383 return -ENOMEM;
1384
1385 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1386 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1387 /* Fake CSR devices don't seem to support sort-transter */
1388 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1389 else
1390 /* Use maximum HCI Event size so the USB stack handles
1391 * ZPL/short-transfer automatically.
1392 */
1393 size = HCI_MAX_EVENT_SIZE;
1394
1395 buf = kmalloc(size, mem_flags);
1396 if (!buf) {
1397 usb_free_urb(urb);
1398 return -ENOMEM;
1399 }
1400
1401 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1402
1403 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1404 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1405
1406 urb->transfer_flags |= URB_FREE_BUFFER;
1407
1408 usb_anchor_urb(urb, &data->intr_anchor);
1409
1410 err = usb_submit_urb(urb, mem_flags);
1411 if (err < 0) {
1412 if (err != -EPERM && err != -ENODEV)
1413 bt_dev_err(hdev, "urb %p submission failed (%d)",
1414 urb, -err);
1415 if (err != -EPERM)
1416 hci_cmd_sync_cancel(hdev, -err);
1417 usb_unanchor_urb(urb);
1418 }
1419
1420 /* Only initialize intr_interval if URB poll sync is enabled */
1421 if (!data->poll_sync)
1422 goto done;
1423
1424 /* The units are frames (milliseconds) for full and low speed devices,
1425 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1426 * devices.
1427 *
1428 * This is done once on open/resume so it shouldn't change even if
1429 * force_poll_sync changes.
1430 */
1431 switch (urb->dev->speed) {
1432 case USB_SPEED_SUPER_PLUS:
1433 case USB_SPEED_SUPER: /* units are 125us */
1434 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1435 break;
1436 default:
1437 data->intr_interval = msecs_to_jiffies(urb->interval);
1438 break;
1439 }
1440
1441done:
1442 usb_free_urb(urb);
1443
1444 return err;
1445}
1446
1447static void btusb_bulk_complete(struct urb *urb)
1448{
1449 struct hci_dev *hdev = urb->context;
1450 struct btusb_data *data = hci_get_drvdata(hdev);
1451 int err;
1452
1453 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1454 urb->actual_length);
1455
1456 if (!test_bit(HCI_RUNNING, &hdev->flags))
1457 return;
1458
1459 if (urb->status == 0) {
1460 hdev->stat.byte_rx += urb->actual_length;
1461
1462 if (data->recv_bulk(data, urb->transfer_buffer,
1463 urb->actual_length) < 0) {
1464 bt_dev_err(hdev, "corrupted ACL packet");
1465 hdev->stat.err_rx++;
1466 }
1467 } else if (urb->status == -ENOENT) {
1468 /* Avoid suspend failed when usb_kill_urb */
1469 return;
1470 }
1471
1472 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1473 return;
1474
1475 usb_anchor_urb(urb, &data->bulk_anchor);
1476 usb_mark_last_busy(data->udev);
1477
1478 err = usb_submit_urb(urb, GFP_ATOMIC);
1479 if (err < 0) {
1480 /* -EPERM: urb is being killed;
1481 * -ENODEV: device got disconnected
1482 */
1483 if (err != -EPERM && err != -ENODEV)
1484 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1485 urb, -err);
1486 usb_unanchor_urb(urb);
1487 }
1488}
1489
1490static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1491{
1492 struct btusb_data *data = hci_get_drvdata(hdev);
1493 struct urb *urb;
1494 unsigned char *buf;
1495 unsigned int pipe;
1496 int err, size = HCI_MAX_FRAME_SIZE;
1497
1498 BT_DBG("%s", hdev->name);
1499
1500 if (!data->bulk_rx_ep)
1501 return -ENODEV;
1502
1503 urb = usb_alloc_urb(0, mem_flags);
1504 if (!urb)
1505 return -ENOMEM;
1506
1507 buf = kmalloc(size, mem_flags);
1508 if (!buf) {
1509 usb_free_urb(urb);
1510 return -ENOMEM;
1511 }
1512
1513 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1514
1515 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1516 btusb_bulk_complete, hdev);
1517
1518 urb->transfer_flags |= URB_FREE_BUFFER;
1519
1520 usb_mark_last_busy(data->udev);
1521 usb_anchor_urb(urb, &data->bulk_anchor);
1522
1523 err = usb_submit_urb(urb, mem_flags);
1524 if (err < 0) {
1525 if (err != -EPERM && err != -ENODEV)
1526 bt_dev_err(hdev, "urb %p submission failed (%d)",
1527 urb, -err);
1528 usb_unanchor_urb(urb);
1529 }
1530
1531 usb_free_urb(urb);
1532
1533 return err;
1534}
1535
1536static void btusb_isoc_complete(struct urb *urb)
1537{
1538 struct hci_dev *hdev = urb->context;
1539 struct btusb_data *data = hci_get_drvdata(hdev);
1540 int i, err;
1541
1542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1543 urb->actual_length);
1544
1545 if (!test_bit(HCI_RUNNING, &hdev->flags))
1546 return;
1547
1548 if (urb->status == 0) {
1549 for (i = 0; i < urb->number_of_packets; i++) {
1550 unsigned int offset = urb->iso_frame_desc[i].offset;
1551 unsigned int length = urb->iso_frame_desc[i].actual_length;
1552
1553 if (urb->iso_frame_desc[i].status)
1554 continue;
1555
1556 hdev->stat.byte_rx += length;
1557
1558 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1559 length) < 0) {
1560 bt_dev_err(hdev, "corrupted SCO packet");
1561 hdev->stat.err_rx++;
1562 }
1563 }
1564 } else if (urb->status == -ENOENT) {
1565 /* Avoid suspend failed when usb_kill_urb */
1566 return;
1567 }
1568
1569 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1570 return;
1571
1572 usb_anchor_urb(urb, &data->isoc_anchor);
1573
1574 err = usb_submit_urb(urb, GFP_ATOMIC);
1575 if (err < 0) {
1576 /* -EPERM: urb is being killed;
1577 * -ENODEV: device got disconnected
1578 */
1579 if (err != -EPERM && err != -ENODEV)
1580 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1581 urb, -err);
1582 usb_unanchor_urb(urb);
1583 }
1584}
1585
1586static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1587 int mtu, struct btusb_data *data)
1588{
1589 int i = 0, offset = 0;
1590 unsigned int interval;
1591
1592 BT_DBG("len %d mtu %d", len, mtu);
1593
1594 /* For mSBC ALT 6 settings some chips need to transmit the data
1595 * continuously without the zero length of USB packets.
1596 */
1597 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1598 goto ignore_usb_alt6_packet_flow;
1599
1600 /* For mSBC ALT 6 setting the host will send the packet at continuous
1601 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1602 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1603 * To maintain the rate we send 63bytes of usb packets alternatively for
1604 * 7ms and 8ms to maintain the rate as 7.5ms.
1605 */
1606 if (data->usb_alt6_packet_flow) {
1607 interval = 7;
1608 data->usb_alt6_packet_flow = false;
1609 } else {
1610 interval = 6;
1611 data->usb_alt6_packet_flow = true;
1612 }
1613
1614 for (i = 0; i < interval; i++) {
1615 urb->iso_frame_desc[i].offset = offset;
1616 urb->iso_frame_desc[i].length = offset;
1617 }
1618
1619ignore_usb_alt6_packet_flow:
1620 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1621 urb->iso_frame_desc[i].offset = offset;
1622 urb->iso_frame_desc[i].length = len;
1623 i++;
1624 }
1625
1626 urb->number_of_packets = i;
1627}
1628
1629static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1630{
1631 int i, offset = 0;
1632
1633 BT_DBG("len %d mtu %d", len, mtu);
1634
1635 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1636 i++, offset += mtu, len -= mtu) {
1637 urb->iso_frame_desc[i].offset = offset;
1638 urb->iso_frame_desc[i].length = mtu;
1639 }
1640
1641 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1642 urb->iso_frame_desc[i].offset = offset;
1643 urb->iso_frame_desc[i].length = len;
1644 i++;
1645 }
1646
1647 urb->number_of_packets = i;
1648}
1649
1650static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1651{
1652 struct btusb_data *data = hci_get_drvdata(hdev);
1653 struct urb *urb;
1654 unsigned char *buf;
1655 unsigned int pipe;
1656 int err, size;
1657
1658 BT_DBG("%s", hdev->name);
1659
1660 if (!data->isoc_rx_ep)
1661 return -ENODEV;
1662
1663 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1664 if (!urb)
1665 return -ENOMEM;
1666
1667 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1668 BTUSB_MAX_ISOC_FRAMES;
1669
1670 buf = kmalloc(size, mem_flags);
1671 if (!buf) {
1672 usb_free_urb(urb);
1673 return -ENOMEM;
1674 }
1675
1676 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1677
1678 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1679 hdev, data->isoc_rx_ep->bInterval);
1680
1681 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1682
1683 __fill_isoc_descriptor(urb, size,
1684 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1685
1686 usb_anchor_urb(urb, &data->isoc_anchor);
1687
1688 err = usb_submit_urb(urb, mem_flags);
1689 if (err < 0) {
1690 if (err != -EPERM && err != -ENODEV)
1691 bt_dev_err(hdev, "urb %p submission failed (%d)",
1692 urb, -err);
1693 usb_unanchor_urb(urb);
1694 }
1695
1696 usb_free_urb(urb);
1697
1698 return err;
1699}
1700
1701static void btusb_diag_complete(struct urb *urb)
1702{
1703 struct hci_dev *hdev = urb->context;
1704 struct btusb_data *data = hci_get_drvdata(hdev);
1705 int err;
1706
1707 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1708 urb->actual_length);
1709
1710 if (urb->status == 0) {
1711 struct sk_buff *skb;
1712
1713 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1714 if (skb) {
1715 skb_put_data(skb, urb->transfer_buffer,
1716 urb->actual_length);
1717 hci_recv_diag(hdev, skb);
1718 }
1719 } else if (urb->status == -ENOENT) {
1720 /* Avoid suspend failed when usb_kill_urb */
1721 return;
1722 }
1723
1724 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1725 return;
1726
1727 usb_anchor_urb(urb, &data->diag_anchor);
1728 usb_mark_last_busy(data->udev);
1729
1730 err = usb_submit_urb(urb, GFP_ATOMIC);
1731 if (err < 0) {
1732 /* -EPERM: urb is being killed;
1733 * -ENODEV: device got disconnected
1734 */
1735 if (err != -EPERM && err != -ENODEV)
1736 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1737 urb, -err);
1738 usb_unanchor_urb(urb);
1739 }
1740}
1741
1742static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1743{
1744 struct btusb_data *data = hci_get_drvdata(hdev);
1745 struct urb *urb;
1746 unsigned char *buf;
1747 unsigned int pipe;
1748 int err, size = HCI_MAX_FRAME_SIZE;
1749
1750 BT_DBG("%s", hdev->name);
1751
1752 if (!data->diag_rx_ep)
1753 return -ENODEV;
1754
1755 urb = usb_alloc_urb(0, mem_flags);
1756 if (!urb)
1757 return -ENOMEM;
1758
1759 buf = kmalloc(size, mem_flags);
1760 if (!buf) {
1761 usb_free_urb(urb);
1762 return -ENOMEM;
1763 }
1764
1765 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1766
1767 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1768 btusb_diag_complete, hdev);
1769
1770 urb->transfer_flags |= URB_FREE_BUFFER;
1771
1772 usb_mark_last_busy(data->udev);
1773 usb_anchor_urb(urb, &data->diag_anchor);
1774
1775 err = usb_submit_urb(urb, mem_flags);
1776 if (err < 0) {
1777 if (err != -EPERM && err != -ENODEV)
1778 bt_dev_err(hdev, "urb %p submission failed (%d)",
1779 urb, -err);
1780 usb_unanchor_urb(urb);
1781 }
1782
1783 usb_free_urb(urb);
1784
1785 return err;
1786}
1787
1788static void btusb_tx_complete(struct urb *urb)
1789{
1790 struct sk_buff *skb = urb->context;
1791 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1792 struct btusb_data *data = hci_get_drvdata(hdev);
1793 unsigned long flags;
1794
1795 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1796 urb->actual_length);
1797
1798 if (!test_bit(HCI_RUNNING, &hdev->flags))
1799 goto done;
1800
1801 if (!urb->status) {
1802 hdev->stat.byte_tx += urb->transfer_buffer_length;
1803 } else {
1804 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1805 hci_cmd_sync_cancel(hdev, -urb->status);
1806 hdev->stat.err_tx++;
1807 }
1808
1809done:
1810 spin_lock_irqsave(&data->txlock, flags);
1811 data->tx_in_flight--;
1812 spin_unlock_irqrestore(&data->txlock, flags);
1813
1814 kfree(urb->setup_packet);
1815
1816 kfree_skb(skb);
1817}
1818
1819static void btusb_isoc_tx_complete(struct urb *urb)
1820{
1821 struct sk_buff *skb = urb->context;
1822 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1823
1824 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1825 urb->actual_length);
1826
1827 if (!test_bit(HCI_RUNNING, &hdev->flags))
1828 goto done;
1829
1830 if (!urb->status)
1831 hdev->stat.byte_tx += urb->transfer_buffer_length;
1832 else
1833 hdev->stat.err_tx++;
1834
1835done:
1836 kfree(urb->setup_packet);
1837
1838 kfree_skb(skb);
1839}
1840
1841static int btusb_open(struct hci_dev *hdev)
1842{
1843 struct btusb_data *data = hci_get_drvdata(hdev);
1844 int err;
1845
1846 BT_DBG("%s", hdev->name);
1847
1848 err = usb_autopm_get_interface(data->intf);
1849 if (err < 0)
1850 return err;
1851
1852 /* Patching USB firmware files prior to starting any URBs of HCI path
1853 * It is more safe to use USB bulk channel for downloading USB patch
1854 */
1855 if (data->setup_on_usb) {
1856 err = data->setup_on_usb(hdev);
1857 if (err < 0)
1858 goto setup_fail;
1859 }
1860
1861 data->intf->needs_remote_wakeup = 1;
1862
1863 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1864 goto done;
1865
1866 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1867 if (err < 0)
1868 goto failed;
1869
1870 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1871 if (err < 0) {
1872 usb_kill_anchored_urbs(&data->intr_anchor);
1873 goto failed;
1874 }
1875
1876 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1877 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1878
1879 if (data->diag) {
1880 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1881 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1882 }
1883
1884done:
1885 usb_autopm_put_interface(data->intf);
1886 return 0;
1887
1888failed:
1889 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1890setup_fail:
1891 usb_autopm_put_interface(data->intf);
1892 return err;
1893}
1894
1895static void btusb_stop_traffic(struct btusb_data *data)
1896{
1897 usb_kill_anchored_urbs(&data->intr_anchor);
1898 usb_kill_anchored_urbs(&data->bulk_anchor);
1899 usb_kill_anchored_urbs(&data->isoc_anchor);
1900 usb_kill_anchored_urbs(&data->diag_anchor);
1901 usb_kill_anchored_urbs(&data->ctrl_anchor);
1902}
1903
1904static int btusb_close(struct hci_dev *hdev)
1905{
1906 struct btusb_data *data = hci_get_drvdata(hdev);
1907 int err;
1908
1909 BT_DBG("%s", hdev->name);
1910
1911 cancel_delayed_work(&data->rx_work);
1912 cancel_work_sync(&data->work);
1913 cancel_work_sync(&data->waker);
1914
1915 skb_queue_purge(&data->acl_q);
1916
1917 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1918 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1919 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1920 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1921
1922 btusb_stop_traffic(data);
1923 btusb_free_frags(data);
1924
1925 err = usb_autopm_get_interface(data->intf);
1926 if (err < 0)
1927 goto failed;
1928
1929 data->intf->needs_remote_wakeup = 0;
1930
1931 /* Enable remote wake up for auto-suspend */
1932 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1933 data->intf->needs_remote_wakeup = 1;
1934
1935 usb_autopm_put_interface(data->intf);
1936
1937failed:
1938 usb_scuttle_anchored_urbs(&data->deferred);
1939 return 0;
1940}
1941
1942static int btusb_flush(struct hci_dev *hdev)
1943{
1944 struct btusb_data *data = hci_get_drvdata(hdev);
1945
1946 BT_DBG("%s", hdev->name);
1947
1948 cancel_delayed_work(&data->rx_work);
1949
1950 skb_queue_purge(&data->acl_q);
1951
1952 usb_kill_anchored_urbs(&data->tx_anchor);
1953 btusb_free_frags(data);
1954
1955 return 0;
1956}
1957
1958static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1959{
1960 struct btusb_data *data = hci_get_drvdata(hdev);
1961 struct usb_ctrlrequest *dr;
1962 struct urb *urb;
1963 unsigned int pipe;
1964
1965 urb = usb_alloc_urb(0, GFP_KERNEL);
1966 if (!urb)
1967 return ERR_PTR(-ENOMEM);
1968
1969 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1970 if (!dr) {
1971 usb_free_urb(urb);
1972 return ERR_PTR(-ENOMEM);
1973 }
1974
1975 dr->bRequestType = data->cmdreq_type;
1976 dr->bRequest = data->cmdreq;
1977 dr->wIndex = 0;
1978 dr->wValue = 0;
1979 dr->wLength = __cpu_to_le16(skb->len);
1980
1981 pipe = usb_sndctrlpipe(data->udev, 0x00);
1982
1983 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1984 skb->data, skb->len, btusb_tx_complete, skb);
1985
1986 skb->dev = (void *)hdev;
1987
1988 return urb;
1989}
1990
1991static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1992{
1993 struct btusb_data *data = hci_get_drvdata(hdev);
1994 struct urb *urb;
1995 unsigned int pipe;
1996
1997 if (!data->bulk_tx_ep)
1998 return ERR_PTR(-ENODEV);
1999
2000 urb = usb_alloc_urb(0, GFP_KERNEL);
2001 if (!urb)
2002 return ERR_PTR(-ENOMEM);
2003
2004 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2005
2006 usb_fill_bulk_urb(urb, data->udev, pipe,
2007 skb->data, skb->len, btusb_tx_complete, skb);
2008
2009 skb->dev = (void *)hdev;
2010
2011 return urb;
2012}
2013
2014static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2015{
2016 struct btusb_data *data = hci_get_drvdata(hdev);
2017 struct urb *urb;
2018 unsigned int pipe;
2019
2020 if (!data->isoc_tx_ep)
2021 return ERR_PTR(-ENODEV);
2022
2023 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2024 if (!urb)
2025 return ERR_PTR(-ENOMEM);
2026
2027 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2028
2029 usb_fill_int_urb(urb, data->udev, pipe,
2030 skb->data, skb->len, btusb_isoc_tx_complete,
2031 skb, data->isoc_tx_ep->bInterval);
2032
2033 urb->transfer_flags = URB_ISO_ASAP;
2034
2035 if (data->isoc_altsetting == 6)
2036 __fill_isoc_descriptor_msbc(urb, skb->len,
2037 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2038 data);
2039 else
2040 __fill_isoc_descriptor(urb, skb->len,
2041 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2042 skb->dev = (void *)hdev;
2043
2044 return urb;
2045}
2046
2047static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2048{
2049 struct btusb_data *data = hci_get_drvdata(hdev);
2050 int err;
2051
2052 usb_anchor_urb(urb, &data->tx_anchor);
2053
2054 err = usb_submit_urb(urb, GFP_KERNEL);
2055 if (err < 0) {
2056 if (err != -EPERM && err != -ENODEV)
2057 bt_dev_err(hdev, "urb %p submission failed (%d)",
2058 urb, -err);
2059 kfree(urb->setup_packet);
2060 usb_unanchor_urb(urb);
2061 } else {
2062 usb_mark_last_busy(data->udev);
2063 }
2064
2065 usb_free_urb(urb);
2066 return err;
2067}
2068
2069static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2070{
2071 struct btusb_data *data = hci_get_drvdata(hdev);
2072 unsigned long flags;
2073 bool suspending;
2074
2075 spin_lock_irqsave(&data->txlock, flags);
2076 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2077 if (!suspending)
2078 data->tx_in_flight++;
2079 spin_unlock_irqrestore(&data->txlock, flags);
2080
2081 if (!suspending)
2082 return submit_tx_urb(hdev, urb);
2083
2084 usb_anchor_urb(urb, &data->deferred);
2085 schedule_work(&data->waker);
2086
2087 usb_free_urb(urb);
2088 return 0;
2089}
2090
2091static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2092{
2093 struct urb *urb;
2094
2095 BT_DBG("%s", hdev->name);
2096
2097 switch (hci_skb_pkt_type(skb)) {
2098 case HCI_COMMAND_PKT:
2099 urb = alloc_ctrl_urb(hdev, skb);
2100 if (IS_ERR(urb))
2101 return PTR_ERR(urb);
2102
2103 hdev->stat.cmd_tx++;
2104 return submit_or_queue_tx_urb(hdev, urb);
2105
2106 case HCI_ACLDATA_PKT:
2107 urb = alloc_bulk_urb(hdev, skb);
2108 if (IS_ERR(urb))
2109 return PTR_ERR(urb);
2110
2111 hdev->stat.acl_tx++;
2112 return submit_or_queue_tx_urb(hdev, urb);
2113
2114 case HCI_SCODATA_PKT:
2115 if (hci_conn_num(hdev, SCO_LINK) < 1)
2116 return -ENODEV;
2117
2118 urb = alloc_isoc_urb(hdev, skb);
2119 if (IS_ERR(urb))
2120 return PTR_ERR(urb);
2121
2122 hdev->stat.sco_tx++;
2123 return submit_tx_urb(hdev, urb);
2124
2125 case HCI_ISODATA_PKT:
2126 urb = alloc_bulk_urb(hdev, skb);
2127 if (IS_ERR(urb))
2128 return PTR_ERR(urb);
2129
2130 return submit_or_queue_tx_urb(hdev, urb);
2131 }
2132
2133 return -EILSEQ;
2134}
2135
2136static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2137{
2138 struct btusb_data *data = hci_get_drvdata(hdev);
2139
2140 BT_DBG("%s evt %d", hdev->name, evt);
2141
2142 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2143 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2144 data->air_mode = evt;
2145 schedule_work(&data->work);
2146 }
2147}
2148
2149static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2150{
2151 struct btusb_data *data = hci_get_drvdata(hdev);
2152 struct usb_interface *intf = data->isoc;
2153 struct usb_endpoint_descriptor *ep_desc;
2154 int i, err;
2155
2156 if (!data->isoc)
2157 return -ENODEV;
2158
2159 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2160 if (err < 0) {
2161 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2162 return err;
2163 }
2164
2165 data->isoc_altsetting = altsetting;
2166
2167 data->isoc_tx_ep = NULL;
2168 data->isoc_rx_ep = NULL;
2169
2170 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2171 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2172
2173 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2174 data->isoc_tx_ep = ep_desc;
2175 continue;
2176 }
2177
2178 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2179 data->isoc_rx_ep = ep_desc;
2180 continue;
2181 }
2182 }
2183
2184 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2185 bt_dev_err(hdev, "invalid SCO descriptors");
2186 return -ENODEV;
2187 }
2188
2189 return 0;
2190}
2191
2192static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2193{
2194 struct btusb_data *data = hci_get_drvdata(hdev);
2195 int err;
2196
2197 if (data->isoc_altsetting != new_alts) {
2198 unsigned long flags;
2199
2200 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2201 usb_kill_anchored_urbs(&data->isoc_anchor);
2202
2203 /* When isochronous alternate setting needs to be
2204 * changed, because SCO connection has been added
2205 * or removed, a packet fragment may be left in the
2206 * reassembling state. This could lead to wrongly
2207 * assembled fragments.
2208 *
2209 * Clear outstanding fragment when selecting a new
2210 * alternate setting.
2211 */
2212 spin_lock_irqsave(&data->rxlock, flags);
2213 dev_kfree_skb_irq(data->sco_skb);
2214 data->sco_skb = NULL;
2215 spin_unlock_irqrestore(&data->rxlock, flags);
2216
2217 err = __set_isoc_interface(hdev, new_alts);
2218 if (err < 0)
2219 return err;
2220 }
2221
2222 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2223 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2224 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2225 else
2226 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2227 }
2228
2229 return 0;
2230}
2231
2232static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2233 int alt)
2234{
2235 struct usb_interface *intf = data->isoc;
2236 int i;
2237
2238 BT_DBG("Looking for Alt no :%d", alt);
2239
2240 if (!intf)
2241 return NULL;
2242
2243 for (i = 0; i < intf->num_altsetting; i++) {
2244 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2245 return &intf->altsetting[i];
2246 }
2247
2248 return NULL;
2249}
2250
2251static void btusb_work(struct work_struct *work)
2252{
2253 struct btusb_data *data = container_of(work, struct btusb_data, work);
2254 struct hci_dev *hdev = data->hdev;
2255 int new_alts = 0;
2256 int err;
2257
2258 if (data->sco_num > 0) {
2259 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2260 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2261 if (err < 0) {
2262 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2263 usb_kill_anchored_urbs(&data->isoc_anchor);
2264 return;
2265 }
2266
2267 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2268 }
2269
2270 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2271 if (hdev->voice_setting & 0x0020) {
2272 static const int alts[3] = { 2, 4, 5 };
2273
2274 new_alts = alts[data->sco_num - 1];
2275 } else {
2276 new_alts = data->sco_num;
2277 }
2278 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2279 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2280 * many adapters do not support it. Alt 1 appears to
2281 * work for all adapters that do not have alt 6, and
2282 * which work with WBS at all. Some devices prefer
2283 * alt 3 (HCI payload >= 60 Bytes let air packet
2284 * data satisfy 60 bytes), requiring
2285 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2286 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2287 */
2288 if (btusb_find_altsetting(data, 6))
2289 new_alts = 6;
2290 else if (btusb_find_altsetting(data, 3) &&
2291 hdev->sco_mtu >= 72 &&
2292 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2293 new_alts = 3;
2294 else
2295 new_alts = 1;
2296 }
2297
2298 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2299 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2300 } else {
2301 usb_kill_anchored_urbs(&data->isoc_anchor);
2302
2303 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2304 __set_isoc_interface(hdev, 0);
2305
2306 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2307 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2308 }
2309}
2310
2311static void btusb_waker(struct work_struct *work)
2312{
2313 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2314 int err;
2315
2316 err = usb_autopm_get_interface(data->intf);
2317 if (err < 0)
2318 return;
2319
2320 usb_autopm_put_interface(data->intf);
2321}
2322
2323static void btusb_rx_work(struct work_struct *work)
2324{
2325 struct btusb_data *data = container_of(work, struct btusb_data,
2326 rx_work.work);
2327 struct sk_buff *skb;
2328
2329 /* Dequeue ACL data received during the interval */
2330 while ((skb = skb_dequeue(&data->acl_q)))
2331 data->recv_acl(data->hdev, skb);
2332}
2333
2334static int btusb_setup_bcm92035(struct hci_dev *hdev)
2335{
2336 struct sk_buff *skb;
2337 u8 val = 0x00;
2338
2339 BT_DBG("%s", hdev->name);
2340
2341 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2342 if (IS_ERR(skb))
2343 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2344 else
2345 kfree_skb(skb);
2346
2347 return 0;
2348}
2349
2350static int btusb_setup_csr(struct hci_dev *hdev)
2351{
2352 struct btusb_data *data = hci_get_drvdata(hdev);
2353 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2354 struct hci_rp_read_local_version *rp;
2355 struct sk_buff *skb;
2356 bool is_fake = false;
2357 int ret;
2358
2359 BT_DBG("%s", hdev->name);
2360
2361 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2362 HCI_INIT_TIMEOUT);
2363 if (IS_ERR(skb)) {
2364 int err = PTR_ERR(skb);
2365 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2366 return err;
2367 }
2368
2369 rp = skb_pull_data(skb, sizeof(*rp));
2370 if (!rp) {
2371 bt_dev_err(hdev, "CSR: Local version length mismatch");
2372 kfree_skb(skb);
2373 return -EIO;
2374 }
2375
2376 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2377 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2378
2379 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2380 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2381 le16_to_cpu(rp->manufacturer));
2382
2383 /* Detect a wide host of Chinese controllers that aren't CSR.
2384 *
2385 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2386 *
2387 * The main thing they have in common is that these are really popular low-cost
2388 * options that support newer Bluetooth versions but rely on heavy VID/PID
2389 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2390 *
2391 * We detect actual CSR devices by checking that the HCI manufacturer code
2392 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2393 * HCI rev values always match. As they both store the firmware number.
2394 */
2395 if (le16_to_cpu(rp->manufacturer) != 10 ||
2396 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2397 is_fake = true;
2398
2399 /* Known legit CSR firmware build numbers and their supported BT versions:
2400 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2401 * - 1.2 (0x2) -> 0x04d9, 0x0529
2402 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2403 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2404 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2405 *
2406 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2407 * support BT 1.1 only; so it's a dead giveaway when some
2408 * third-party BT 4.0 dongle reuses it.
2409 */
2410 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2411 rp->hci_ver > BLUETOOTH_VER_1_1)
2412 is_fake = true;
2413
2414 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2415 rp->hci_ver > BLUETOOTH_VER_1_2)
2416 is_fake = true;
2417
2418 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2419 rp->hci_ver > BLUETOOTH_VER_2_0)
2420 is_fake = true;
2421
2422 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2423 rp->hci_ver > BLUETOOTH_VER_2_1)
2424 is_fake = true;
2425
2426 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2427 rp->hci_ver > BLUETOOTH_VER_4_0)
2428 is_fake = true;
2429
2430 /* Other clones which beat all the above checks */
2431 else if (bcdDevice == 0x0134 &&
2432 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2433 rp->hci_ver == BLUETOOTH_VER_2_0)
2434 is_fake = true;
2435
2436 if (is_fake) {
2437 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2438
2439 /* Generally these clones have big discrepancies between
2440 * advertised features and what's actually supported.
2441 * Probably will need to be expanded in the future;
2442 * without these the controller will lock up.
2443 */
2444 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2445 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2446 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2447 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2448
2449 /* Clear the reset quirk since this is not an actual
2450 * early Bluetooth 1.1 device from CSR.
2451 */
2452 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2453 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2454
2455 /*
2456 * Special workaround for these BT 4.0 chip clones, and potentially more:
2457 *
2458 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2459 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2460 *
2461 * These controllers are really messed-up.
2462 *
2463 * 1. Their bulk RX endpoint will never report any data unless
2464 * the device was suspended at least once (yes, really).
2465 * 2. They will not wakeup when autosuspended and receiving data
2466 * on their bulk RX endpoint from e.g. a keyboard or mouse
2467 * (IOW remote-wakeup support is broken for the bulk endpoint).
2468 *
2469 * To fix 1. enable runtime-suspend, force-suspend the
2470 * HCI and then wake-it up by disabling runtime-suspend.
2471 *
2472 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2473 * will still be autosuspended when it is not open.
2474 *
2475 * --
2476 *
2477 * Because these are widespread problems we prefer generic solutions; so
2478 * apply this initialization quirk to every controller that gets here,
2479 * it should be harmless. The alternative is to not work at all.
2480 */
2481 pm_runtime_allow(&data->udev->dev);
2482
2483 ret = pm_runtime_suspend(&data->udev->dev);
2484 if (ret >= 0)
2485 msleep(200);
2486 else
2487 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2488
2489 pm_runtime_forbid(&data->udev->dev);
2490
2491 device_set_wakeup_capable(&data->udev->dev, false);
2492
2493 /* Re-enable autosuspend if this was requested */
2494 if (enable_autosuspend)
2495 usb_enable_autosuspend(data->udev);
2496 }
2497
2498 kfree_skb(skb);
2499
2500 return 0;
2501}
2502
2503static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2504{
2505 struct sk_buff *skb;
2506 struct hci_event_hdr *hdr;
2507 struct hci_ev_cmd_complete *evt;
2508
2509 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2510 if (!skb)
2511 return -ENOMEM;
2512
2513 hdr = skb_put(skb, sizeof(*hdr));
2514 hdr->evt = HCI_EV_CMD_COMPLETE;
2515 hdr->plen = sizeof(*evt) + 1;
2516
2517 evt = skb_put(skb, sizeof(*evt));
2518 evt->ncmd = 0x01;
2519 evt->opcode = cpu_to_le16(opcode);
2520
2521 skb_put_u8(skb, 0x00);
2522
2523 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2524
2525 return hci_recv_frame(hdev, skb);
2526}
2527
2528static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2529 int count)
2530{
2531 struct hci_dev *hdev = data->hdev;
2532
2533 /* When the device is in bootloader mode, then it can send
2534 * events via the bulk endpoint. These events are treated the
2535 * same way as the ones received from the interrupt endpoint.
2536 */
2537 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2538 return btusb_recv_intr(data, buffer, count);
2539
2540 return btusb_recv_bulk(data, buffer, count);
2541}
2542
2543static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2544{
2545 struct urb *urb;
2546
2547 BT_DBG("%s", hdev->name);
2548
2549 switch (hci_skb_pkt_type(skb)) {
2550 case HCI_COMMAND_PKT:
2551 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2552 struct hci_command_hdr *cmd = (void *)skb->data;
2553 __u16 opcode = le16_to_cpu(cmd->opcode);
2554
2555 /* When in bootloader mode and the command 0xfc09
2556 * is received, it needs to be send down the
2557 * bulk endpoint. So allocate a bulk URB instead.
2558 */
2559 if (opcode == 0xfc09)
2560 urb = alloc_bulk_urb(hdev, skb);
2561 else
2562 urb = alloc_ctrl_urb(hdev, skb);
2563
2564 /* When the 0xfc01 command is issued to boot into
2565 * the operational firmware, it will actually not
2566 * send a command complete event. To keep the flow
2567 * control working inject that event here.
2568 */
2569 if (opcode == 0xfc01)
2570 inject_cmd_complete(hdev, opcode);
2571 } else {
2572 urb = alloc_ctrl_urb(hdev, skb);
2573 }
2574 if (IS_ERR(urb))
2575 return PTR_ERR(urb);
2576
2577 hdev->stat.cmd_tx++;
2578 return submit_or_queue_tx_urb(hdev, urb);
2579
2580 case HCI_ACLDATA_PKT:
2581 urb = alloc_bulk_urb(hdev, skb);
2582 if (IS_ERR(urb))
2583 return PTR_ERR(urb);
2584
2585 hdev->stat.acl_tx++;
2586 return submit_or_queue_tx_urb(hdev, urb);
2587
2588 case HCI_SCODATA_PKT:
2589 if (hci_conn_num(hdev, SCO_LINK) < 1)
2590 return -ENODEV;
2591
2592 urb = alloc_isoc_urb(hdev, skb);
2593 if (IS_ERR(urb))
2594 return PTR_ERR(urb);
2595
2596 hdev->stat.sco_tx++;
2597 return submit_tx_urb(hdev, urb);
2598
2599 case HCI_ISODATA_PKT:
2600 urb = alloc_bulk_urb(hdev, skb);
2601 if (IS_ERR(urb))
2602 return PTR_ERR(urb);
2603
2604 return submit_or_queue_tx_urb(hdev, urb);
2605 }
2606
2607 return -EILSEQ;
2608}
2609
2610static int btusb_setup_realtek(struct hci_dev *hdev)
2611{
2612 struct btusb_data *data = hci_get_drvdata(hdev);
2613 int ret;
2614
2615 ret = btrtl_setup_realtek(hdev);
2616
2617 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2618 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2619
2620 return ret;
2621}
2622
2623static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2624{
2625 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2626 struct rtk_dev_coredump_hdr hdr = {
2627 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2628 };
2629
2630 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2631 skb->len);
2632
2633 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2634 kfree_skb(skb);
2635
2636 return 0;
2637 }
2638
2639 return hci_recv_frame(hdev, skb);
2640}
2641
2642static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2643{
2644 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2645 int err;
2646
2647 /*
2648 * The function usb_driver_claim_interface() is documented to need
2649 * locks held if it's not called from a probe routine. The code here
2650 * is called from the hci_power_on workqueue, so grab the lock.
2651 */
2652 device_lock(&btmtk_data->isopkt_intf->dev);
2653 err = usb_driver_claim_interface(&btusb_driver,
2654 btmtk_data->isopkt_intf, data);
2655 device_unlock(&btmtk_data->isopkt_intf->dev);
2656 if (err < 0) {
2657 btmtk_data->isopkt_intf = NULL;
2658 bt_dev_err(data->hdev, "Failed to claim iso interface");
2659 return;
2660 }
2661
2662 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2663 init_usb_anchor(&btmtk_data->isopkt_anchor);
2664}
2665
2666static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2667{
2668 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2669
2670 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2671 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2672 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2673
2674 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2675 btmtk_data->isopkt_skb = NULL;
2676 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2677 usb_driver_release_interface(&btusb_driver,
2678 btmtk_data->isopkt_intf);
2679 }
2680
2681 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2682}
2683
2684static int btusb_mtk_disconnect(struct hci_dev *hdev)
2685{
2686 /* This function describes the specific additional steps taken by MediaTek
2687 * when Bluetooth usb driver's resume function is called.
2688 */
2689 btusb_mtk_release_iso_intf(hdev);
2690
2691 return 0;
2692}
2693
2694static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2695{
2696 struct btusb_data *data = hci_get_drvdata(hdev);
2697 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2698 int err;
2699
2700 /* It's MediaTek specific bluetooth reset mechanism via USB */
2701 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2702 bt_dev_err(hdev, "last reset failed? Not resetting again");
2703 return -EBUSY;
2704 }
2705
2706 err = usb_autopm_get_interface(data->intf);
2707 if (err < 0)
2708 return err;
2709
2710 /* Release MediaTek ISO data interface */
2711 btusb_mtk_release_iso_intf(hdev);
2712
2713 btusb_stop_traffic(data);
2714 usb_kill_anchored_urbs(&data->tx_anchor);
2715
2716 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2717
2718 usb_queue_reset_device(data->intf);
2719 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2720
2721 return err;
2722}
2723
2724static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2725{
2726 struct urb *urb;
2727
2728 BT_DBG("%s", hdev->name);
2729
2730 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2731 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2732 if (IS_ERR(urb))
2733 return PTR_ERR(urb);
2734
2735 return submit_or_queue_tx_urb(hdev, urb);
2736 } else {
2737 return btusb_send_frame(hdev, skb);
2738 }
2739}
2740
2741static int btusb_mtk_setup(struct hci_dev *hdev)
2742{
2743 struct btusb_data *data = hci_get_drvdata(hdev);
2744 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2745
2746 /* MediaTek WMT vendor cmd requiring below USB resources to
2747 * complete the handshake.
2748 */
2749 btmtk_data->drv_name = btusb_driver.name;
2750 btmtk_data->intf = data->intf;
2751 btmtk_data->udev = data->udev;
2752 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2753 btmtk_data->reset_sync = btusb_mtk_reset;
2754
2755 /* Claim ISO data interface and endpoint */
2756 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2757 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2758 btusb_mtk_claim_iso_intf(data);
2759 }
2760
2761 return btmtk_usb_setup(hdev);
2762}
2763
2764static int btusb_mtk_shutdown(struct hci_dev *hdev)
2765{
2766 int ret;
2767
2768 ret = btmtk_usb_shutdown(hdev);
2769
2770 /* Release MediaTek iso interface after shutdown */
2771 btusb_mtk_release_iso_intf(hdev);
2772
2773 return ret;
2774}
2775
2776#ifdef CONFIG_PM
2777/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2778static int marvell_config_oob_wake(struct hci_dev *hdev)
2779{
2780 struct sk_buff *skb;
2781 struct btusb_data *data = hci_get_drvdata(hdev);
2782 struct device *dev = &data->udev->dev;
2783 u16 pin, gap, opcode;
2784 int ret;
2785 u8 cmd[5];
2786
2787 /* Move on if no wakeup pin specified */
2788 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2789 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2790 return 0;
2791
2792 /* Vendor specific command to configure a GPIO as wake-up pin */
2793 opcode = hci_opcode_pack(0x3F, 0x59);
2794 cmd[0] = opcode & 0xFF;
2795 cmd[1] = opcode >> 8;
2796 cmd[2] = 2; /* length of parameters that follow */
2797 cmd[3] = pin;
2798 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2799
2800 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2801 if (!skb) {
2802 bt_dev_err(hdev, "%s: No memory", __func__);
2803 return -ENOMEM;
2804 }
2805
2806 skb_put_data(skb, cmd, sizeof(cmd));
2807 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2808
2809 ret = btusb_send_frame(hdev, skb);
2810 if (ret) {
2811 bt_dev_err(hdev, "%s: configuration failed", __func__);
2812 kfree_skb(skb);
2813 return ret;
2814 }
2815
2816 return 0;
2817}
2818#endif
2819
2820static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2821 const bdaddr_t *bdaddr)
2822{
2823 struct sk_buff *skb;
2824 u8 buf[8];
2825 long ret;
2826
2827 buf[0] = 0xfe;
2828 buf[1] = sizeof(bdaddr_t);
2829 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2830
2831 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2832 if (IS_ERR(skb)) {
2833 ret = PTR_ERR(skb);
2834 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2835 ret);
2836 return ret;
2837 }
2838 kfree_skb(skb);
2839
2840 return 0;
2841}
2842
2843static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2844 const bdaddr_t *bdaddr)
2845{
2846 struct sk_buff *skb;
2847 u8 buf[10];
2848 long ret;
2849
2850 buf[0] = 0x01;
2851 buf[1] = 0x01;
2852 buf[2] = 0x00;
2853 buf[3] = sizeof(bdaddr_t);
2854 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2855
2856 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2857 if (IS_ERR(skb)) {
2858 ret = PTR_ERR(skb);
2859 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2860 return ret;
2861 }
2862 kfree_skb(skb);
2863
2864 return 0;
2865}
2866
2867static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2868 const bdaddr_t *bdaddr)
2869{
2870 struct sk_buff *skb;
2871 u8 buf[6];
2872 long ret;
2873
2874 memcpy(buf, bdaddr, sizeof(bdaddr_t));
2875
2876 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2877 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2878 if (IS_ERR(skb)) {
2879 ret = PTR_ERR(skb);
2880 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2881 return ret;
2882 }
2883 kfree_skb(skb);
2884
2885 return 0;
2886}
2887
2888#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2889#define QCA_MEMDUMP_SIZE_MAX 0x100000
2890#define QCA_MEMDUMP_VSE_CLASS 0x01
2891#define QCA_MEMDUMP_MSG_TYPE 0x08
2892#define QCA_MEMDUMP_PKT_SIZE 248
2893#define QCA_LAST_SEQUENCE_NUM 0xffff
2894
2895struct qca_dump_hdr {
2896 u8 vse_class;
2897 u8 msg_type;
2898 __le16 seqno;
2899 u8 reserved;
2900 union {
2901 u8 data[0];
2902 struct {
2903 __le32 ram_dump_size;
2904 u8 data0[0];
2905 } __packed;
2906 };
2907} __packed;
2908
2909
2910static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2911{
2912 char buf[128];
2913 struct btusb_data *btdata = hci_get_drvdata(hdev);
2914
2915 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2916 btdata->qca_dump.controller_id);
2917 skb_put_data(skb, buf, strlen(buf));
2918
2919 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2920 btdata->qca_dump.fw_version);
2921 skb_put_data(skb, buf, strlen(buf));
2922
2923 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2924 btusb_driver.name);
2925 skb_put_data(skb, buf, strlen(buf));
2926
2927 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2928 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2929 skb_put_data(skb, buf, strlen(buf));
2930
2931 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2932 hdev->lmp_subver);
2933 skb_put_data(skb, buf, strlen(buf));
2934}
2935
2936static void btusb_coredump_qca(struct hci_dev *hdev)
2937{
2938 int err;
2939 static const u8 param[] = { 0x26 };
2940
2941 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2942 if (err < 0)
2943 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2944}
2945
2946/*
2947 * ==0: not a dump pkt.
2948 * < 0: fails to handle a dump pkt
2949 * > 0: otherwise.
2950 */
2951static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2952{
2953 int ret = 1;
2954 u8 pkt_type;
2955 u8 *sk_ptr;
2956 unsigned int sk_len;
2957 u16 seqno;
2958 u32 dump_size;
2959
2960 struct hci_event_hdr *event_hdr;
2961 struct hci_acl_hdr *acl_hdr;
2962 struct qca_dump_hdr *dump_hdr;
2963 struct btusb_data *btdata = hci_get_drvdata(hdev);
2964 struct usb_device *udev = btdata->udev;
2965
2966 pkt_type = hci_skb_pkt_type(skb);
2967 sk_ptr = skb->data;
2968 sk_len = skb->len;
2969
2970 if (pkt_type == HCI_ACLDATA_PKT) {
2971 acl_hdr = hci_acl_hdr(skb);
2972 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2973 return 0;
2974 sk_ptr += HCI_ACL_HDR_SIZE;
2975 sk_len -= HCI_ACL_HDR_SIZE;
2976 event_hdr = (struct hci_event_hdr *)sk_ptr;
2977 } else {
2978 event_hdr = hci_event_hdr(skb);
2979 }
2980
2981 if ((event_hdr->evt != HCI_VENDOR_PKT)
2982 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2983 return 0;
2984
2985 sk_ptr += HCI_EVENT_HDR_SIZE;
2986 sk_len -= HCI_EVENT_HDR_SIZE;
2987
2988 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2989 if ((sk_len < offsetof(struct qca_dump_hdr, data))
2990 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2991 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2992 return 0;
2993
2994 /*it is dump pkt now*/
2995 seqno = le16_to_cpu(dump_hdr->seqno);
2996 if (seqno == 0) {
2997 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2998 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2999 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3000 ret = -EILSEQ;
3001 bt_dev_err(hdev, "Invalid memdump size(%u)",
3002 dump_size);
3003 goto out;
3004 }
3005
3006 ret = hci_devcd_init(hdev, dump_size);
3007 if (ret < 0) {
3008 bt_dev_err(hdev, "memdump init error(%d)", ret);
3009 goto out;
3010 }
3011
3012 btdata->qca_dump.ram_dump_size = dump_size;
3013 btdata->qca_dump.ram_dump_seqno = 0;
3014 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3015 sk_len -= offsetof(struct qca_dump_hdr, data0);
3016
3017 usb_disable_autosuspend(udev);
3018 bt_dev_info(hdev, "%s memdump size(%u)\n",
3019 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3020 dump_size);
3021 } else {
3022 sk_ptr += offsetof(struct qca_dump_hdr, data);
3023 sk_len -= offsetof(struct qca_dump_hdr, data);
3024 }
3025
3026 if (!btdata->qca_dump.ram_dump_size) {
3027 ret = -EINVAL;
3028 bt_dev_err(hdev, "memdump is not active");
3029 goto out;
3030 }
3031
3032 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3033 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3034 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3035 bt_dev_err(hdev,
3036 "expected memdump seqno(%u) is not received(%u)\n",
3037 btdata->qca_dump.ram_dump_seqno, seqno);
3038 btdata->qca_dump.ram_dump_seqno = seqno;
3039 kfree_skb(skb);
3040 return ret;
3041 }
3042
3043 skb_pull(skb, skb->len - sk_len);
3044 hci_devcd_append(hdev, skb);
3045 btdata->qca_dump.ram_dump_seqno++;
3046 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3047 bt_dev_info(hdev,
3048 "memdump done: pkts(%u), total(%u)\n",
3049 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3050
3051 hci_devcd_complete(hdev);
3052 goto out;
3053 }
3054 return ret;
3055
3056out:
3057 if (btdata->qca_dump.ram_dump_size)
3058 usb_enable_autosuspend(udev);
3059 btdata->qca_dump.ram_dump_size = 0;
3060 btdata->qca_dump.ram_dump_seqno = 0;
3061 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3062
3063 if (ret < 0)
3064 kfree_skb(skb);
3065 return ret;
3066}
3067
3068static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3069{
3070 if (handle_dump_pkt_qca(hdev, skb))
3071 return 0;
3072 return hci_recv_frame(hdev, skb);
3073}
3074
3075static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3076{
3077 if (handle_dump_pkt_qca(hdev, skb))
3078 return 0;
3079 return hci_recv_frame(hdev, skb);
3080}
3081
3082
3083#define QCA_DFU_PACKET_LEN 4096
3084
3085#define QCA_GET_TARGET_VERSION 0x09
3086#define QCA_CHECK_STATUS 0x05
3087#define QCA_DFU_DOWNLOAD 0x01
3088
3089#define QCA_SYSCFG_UPDATED 0x40
3090#define QCA_PATCH_UPDATED 0x80
3091#define QCA_DFU_TIMEOUT 3000
3092#define QCA_FLAG_MULTI_NVM 0x80
3093#define QCA_BT_RESET_WAIT_MS 100
3094
3095#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3096#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3097
3098struct qca_version {
3099 __le32 rom_version;
3100 __le32 patch_version;
3101 __le32 ram_version;
3102 __u8 chip_id;
3103 __u8 platform_id;
3104 __le16 flag;
3105 __u8 reserved[4];
3106} __packed;
3107
3108struct qca_rampatch_version {
3109 __le16 rom_version_high;
3110 __le16 rom_version_low;
3111 __le16 patch_version;
3112} __packed;
3113
3114struct qca_device_info {
3115 u32 rom_version;
3116 u8 rampatch_hdr; /* length of header in rampatch */
3117 u8 nvm_hdr; /* length of header in NVM */
3118 u8 ver_offset; /* offset of version structure in rampatch */
3119};
3120
3121static const struct qca_device_info qca_devices_table[] = {
3122 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3123 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3124 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3125 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3126 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3127 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3128 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3129 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3130 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3131 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3132};
3133
3134static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3135 void *data, u16 size)
3136{
3137 int pipe, err;
3138 u8 *buf;
3139
3140 buf = kmalloc(size, GFP_KERNEL);
3141 if (!buf)
3142 return -ENOMEM;
3143
3144 /* Found some of USB hosts have IOT issues with ours so that we should
3145 * not wait until HCI layer is ready.
3146 */
3147 pipe = usb_rcvctrlpipe(udev, 0);
3148 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3149 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3150 if (err < 0) {
3151 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3152 goto done;
3153 }
3154
3155 memcpy(data, buf, size);
3156
3157done:
3158 kfree(buf);
3159
3160 return err;
3161}
3162
3163static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3164 const struct firmware *firmware,
3165 size_t hdr_size)
3166{
3167 struct btusb_data *btdata = hci_get_drvdata(hdev);
3168 struct usb_device *udev = btdata->udev;
3169 size_t count, size, sent = 0;
3170 int pipe, len, err;
3171 u8 *buf;
3172
3173 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3174 if (!buf)
3175 return -ENOMEM;
3176
3177 count = firmware->size;
3178
3179 size = min_t(size_t, count, hdr_size);
3180 memcpy(buf, firmware->data, size);
3181
3182 /* USB patches should go down to controller through USB path
3183 * because binary format fits to go down through USB channel.
3184 * USB control path is for patching headers and USB bulk is for
3185 * patch body.
3186 */
3187 pipe = usb_sndctrlpipe(udev, 0);
3188 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3189 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3190 if (err < 0) {
3191 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3192 goto done;
3193 }
3194
3195 sent += size;
3196 count -= size;
3197
3198 /* ep2 need time to switch from function acl to function dfu,
3199 * so we add 20ms delay here.
3200 */
3201 msleep(20);
3202
3203 while (count) {
3204 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3205
3206 memcpy(buf, firmware->data + sent, size);
3207
3208 pipe = usb_sndbulkpipe(udev, 0x02);
3209 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3210 QCA_DFU_TIMEOUT);
3211 if (err < 0) {
3212 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3213 sent, firmware->size, err);
3214 break;
3215 }
3216
3217 if (size != len) {
3218 bt_dev_err(hdev, "Failed to get bulk buffer");
3219 err = -EILSEQ;
3220 break;
3221 }
3222
3223 sent += size;
3224 count -= size;
3225 }
3226
3227done:
3228 kfree(buf);
3229 return err;
3230}
3231
3232static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3233 struct qca_version *ver,
3234 const struct qca_device_info *info)
3235{
3236 struct qca_rampatch_version *rver;
3237 const struct firmware *fw;
3238 u32 ver_rom, ver_patch, rver_rom;
3239 u16 rver_rom_low, rver_rom_high, rver_patch;
3240 char fwname[64];
3241 int err;
3242
3243 ver_rom = le32_to_cpu(ver->rom_version);
3244 ver_patch = le32_to_cpu(ver->patch_version);
3245
3246 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3247
3248 err = request_firmware(&fw, fwname, &hdev->dev);
3249 if (err) {
3250 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3251 fwname, err);
3252 return err;
3253 }
3254
3255 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3256
3257 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3258 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3259 rver_patch = le16_to_cpu(rver->patch_version);
3260
3261 if (ver_rom & ~0xffffU) {
3262 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3263 rver_rom = rver_rom_high << 16 | rver_rom_low;
3264 } else {
3265 rver_rom = rver_rom_low;
3266 }
3267
3268 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3269 "firmware rome 0x%x build 0x%x",
3270 rver_rom, rver_patch, ver_rom, ver_patch);
3271
3272 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3273 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3274 err = -EINVAL;
3275 goto done;
3276 }
3277
3278 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3279
3280done:
3281 release_firmware(fw);
3282
3283 return err;
3284}
3285
3286static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3287 const struct qca_version *ver)
3288{
3289 u32 rom_version = le32_to_cpu(ver->rom_version);
3290 u16 flag = le16_to_cpu(ver->flag);
3291
3292 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3293 /* The board_id should be split into two bytes
3294 * The 1st byte is chip ID, and the 2nd byte is platform ID
3295 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3296 * we have several platforms, and platform IDs are continuously added
3297 * Platform ID:
3298 * 0x00 is for Mobile
3299 * 0x01 is for X86
3300 * 0x02 is for Automotive
3301 * 0x03 is for Consumer electronic
3302 */
3303 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3304 const char *variant;
3305
3306 switch (le32_to_cpu(ver->ram_version)) {
3307 case WCN6855_2_0_RAM_VERSION_GF:
3308 case WCN6855_2_1_RAM_VERSION_GF:
3309 variant = "_gf";
3310 break;
3311 default:
3312 variant = "";
3313 break;
3314 }
3315
3316 if (board_id == 0) {
3317 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3318 rom_version, variant);
3319 } else {
3320 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3321 rom_version, variant, board_id);
3322 }
3323 } else {
3324 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3325 rom_version);
3326 }
3327
3328}
3329
3330static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3331 struct qca_version *ver,
3332 const struct qca_device_info *info)
3333{
3334 const struct firmware *fw;
3335 char fwname[64];
3336 int err;
3337
3338 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3339
3340 err = request_firmware(&fw, fwname, &hdev->dev);
3341 if (err) {
3342 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3343 fwname, err);
3344 return err;
3345 }
3346
3347 bt_dev_info(hdev, "using NVM file: %s", fwname);
3348
3349 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3350
3351 release_firmware(fw);
3352
3353 return err;
3354}
3355
3356/* identify the ROM version and check whether patches are needed */
3357static bool btusb_qca_need_patch(struct usb_device *udev)
3358{
3359 struct qca_version ver;
3360
3361 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3362 sizeof(ver)) < 0)
3363 return false;
3364 /* only low ROM versions need patches */
3365 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3366}
3367
3368static int btusb_setup_qca(struct hci_dev *hdev)
3369{
3370 struct btusb_data *btdata = hci_get_drvdata(hdev);
3371 struct usb_device *udev = btdata->udev;
3372 const struct qca_device_info *info = NULL;
3373 struct qca_version ver;
3374 u32 ver_rom;
3375 u8 status;
3376 int i, err;
3377
3378 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3379 sizeof(ver));
3380 if (err < 0)
3381 return err;
3382
3383 ver_rom = le32_to_cpu(ver.rom_version);
3384
3385 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3386 if (ver_rom == qca_devices_table[i].rom_version)
3387 info = &qca_devices_table[i];
3388 }
3389 if (!info) {
3390 /* If the rom_version is not matched in the qca_devices_table
3391 * and the high ROM version is not zero, we assume this chip no
3392 * need to load the rampatch and nvm.
3393 */
3394 if (ver_rom & ~0xffffU)
3395 return 0;
3396
3397 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3398 return -ENODEV;
3399 }
3400
3401 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3402 sizeof(status));
3403 if (err < 0)
3404 return err;
3405
3406 if (!(status & QCA_PATCH_UPDATED)) {
3407 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3408 if (err < 0)
3409 return err;
3410 }
3411
3412 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3413 sizeof(ver));
3414 if (err < 0)
3415 return err;
3416
3417 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3418 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3419
3420 if (!(status & QCA_SYSCFG_UPDATED)) {
3421 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3422 if (err < 0)
3423 return err;
3424
3425 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3426 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3427 * cause potential enable failure.
3428 */
3429 if (info->rom_version >= 0x00130201)
3430 msleep(QCA_BT_RESET_WAIT_MS);
3431 }
3432
3433 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3434 * work with the likes of HSP/HFP mSBC.
3435 */
3436 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3437
3438 return 0;
3439}
3440
3441static inline int __set_diag_interface(struct hci_dev *hdev)
3442{
3443 struct btusb_data *data = hci_get_drvdata(hdev);
3444 struct usb_interface *intf = data->diag;
3445 int i;
3446
3447 if (!data->diag)
3448 return -ENODEV;
3449
3450 data->diag_tx_ep = NULL;
3451 data->diag_rx_ep = NULL;
3452
3453 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3454 struct usb_endpoint_descriptor *ep_desc;
3455
3456 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3457
3458 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3459 data->diag_tx_ep = ep_desc;
3460 continue;
3461 }
3462
3463 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3464 data->diag_rx_ep = ep_desc;
3465 continue;
3466 }
3467 }
3468
3469 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3470 bt_dev_err(hdev, "invalid diagnostic descriptors");
3471 return -ENODEV;
3472 }
3473
3474 return 0;
3475}
3476
3477static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3478{
3479 struct btusb_data *data = hci_get_drvdata(hdev);
3480 struct sk_buff *skb;
3481 struct urb *urb;
3482 unsigned int pipe;
3483
3484 if (!data->diag_tx_ep)
3485 return ERR_PTR(-ENODEV);
3486
3487 urb = usb_alloc_urb(0, GFP_KERNEL);
3488 if (!urb)
3489 return ERR_PTR(-ENOMEM);
3490
3491 skb = bt_skb_alloc(2, GFP_KERNEL);
3492 if (!skb) {
3493 usb_free_urb(urb);
3494 return ERR_PTR(-ENOMEM);
3495 }
3496
3497 skb_put_u8(skb, 0xf0);
3498 skb_put_u8(skb, enable);
3499
3500 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3501
3502 usb_fill_bulk_urb(urb, data->udev, pipe,
3503 skb->data, skb->len, btusb_tx_complete, skb);
3504
3505 skb->dev = (void *)hdev;
3506
3507 return urb;
3508}
3509
3510static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3511{
3512 struct btusb_data *data = hci_get_drvdata(hdev);
3513 struct urb *urb;
3514
3515 if (!data->diag)
3516 return -ENODEV;
3517
3518 if (!test_bit(HCI_RUNNING, &hdev->flags))
3519 return -ENETDOWN;
3520
3521 urb = alloc_diag_urb(hdev, enable);
3522 if (IS_ERR(urb))
3523 return PTR_ERR(urb);
3524
3525 return submit_or_queue_tx_urb(hdev, urb);
3526}
3527
3528#ifdef CONFIG_PM
3529static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3530{
3531 struct btusb_data *data = priv;
3532
3533 pm_wakeup_event(&data->udev->dev, 0);
3534 pm_system_wakeup();
3535
3536 /* Disable only if not already disabled (keep it balanced) */
3537 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3538 disable_irq_nosync(irq);
3539 disable_irq_wake(irq);
3540 }
3541 return IRQ_HANDLED;
3542}
3543
3544static const struct of_device_id btusb_match_table[] = {
3545 { .compatible = "usb1286,204e" },
3546 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3547 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3548 { }
3549};
3550MODULE_DEVICE_TABLE(of, btusb_match_table);
3551
3552/* Use an oob wakeup pin? */
3553static int btusb_config_oob_wake(struct hci_dev *hdev)
3554{
3555 struct btusb_data *data = hci_get_drvdata(hdev);
3556 struct device *dev = &data->udev->dev;
3557 int irq, ret;
3558
3559 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3560
3561 if (!of_match_device(btusb_match_table, dev))
3562 return 0;
3563
3564 /* Move on if no IRQ specified */
3565 irq = of_irq_get_byname(dev->of_node, "wakeup");
3566 if (irq <= 0) {
3567 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3568 return 0;
3569 }
3570
3571 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3572 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3573 0, "OOB Wake-on-BT", data);
3574 if (ret) {
3575 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3576 return ret;
3577 }
3578
3579 ret = device_init_wakeup(dev, true);
3580 if (ret) {
3581 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3582 return ret;
3583 }
3584
3585 data->oob_wake_irq = irq;
3586 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3587 return 0;
3588}
3589#endif
3590
3591static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3592{
3593 if (dmi_check_system(btusb_needs_reset_resume_table))
3594 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3595}
3596
3597static bool btusb_wakeup(struct hci_dev *hdev)
3598{
3599 struct btusb_data *data = hci_get_drvdata(hdev);
3600
3601 return device_may_wakeup(&data->udev->dev);
3602}
3603
3604static int btusb_shutdown_qca(struct hci_dev *hdev)
3605{
3606 struct sk_buff *skb;
3607
3608 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3609 if (IS_ERR(skb)) {
3610 bt_dev_err(hdev, "HCI reset during shutdown failed");
3611 return PTR_ERR(skb);
3612 }
3613 kfree_skb(skb);
3614
3615 return 0;
3616}
3617
3618static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3619 size_t count, loff_t *ppos)
3620{
3621 struct btusb_data *data = file->private_data;
3622 char buf[3];
3623
3624 buf[0] = data->poll_sync ? 'Y' : 'N';
3625 buf[1] = '\n';
3626 buf[2] = '\0';
3627 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3628}
3629
3630static ssize_t force_poll_sync_write(struct file *file,
3631 const char __user *user_buf,
3632 size_t count, loff_t *ppos)
3633{
3634 struct btusb_data *data = file->private_data;
3635 bool enable;
3636 int err;
3637
3638 err = kstrtobool_from_user(user_buf, count, &enable);
3639 if (err)
3640 return err;
3641
3642 /* Only allow changes while the adapter is down */
3643 if (test_bit(HCI_UP, &data->hdev->flags))
3644 return -EPERM;
3645
3646 if (data->poll_sync == enable)
3647 return -EALREADY;
3648
3649 data->poll_sync = enable;
3650
3651 return count;
3652}
3653
3654static const struct file_operations force_poll_sync_fops = {
3655 .owner = THIS_MODULE,
3656 .open = simple_open,
3657 .read = force_poll_sync_read,
3658 .write = force_poll_sync_write,
3659 .llseek = default_llseek,
3660};
3661
3662static int btusb_probe(struct usb_interface *intf,
3663 const struct usb_device_id *id)
3664{
3665 struct usb_endpoint_descriptor *ep_desc;
3666 struct gpio_desc *reset_gpio;
3667 struct btusb_data *data;
3668 struct hci_dev *hdev;
3669 unsigned ifnum_base;
3670 int i, err, priv_size;
3671
3672 BT_DBG("intf %p id %p", intf, id);
3673
3674 if ((id->driver_info & BTUSB_IFNUM_2) &&
3675 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3676 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3677 return -ENODEV;
3678
3679 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3680
3681 if (!id->driver_info) {
3682 const struct usb_device_id *match;
3683
3684 match = usb_match_id(intf, quirks_table);
3685 if (match)
3686 id = match;
3687 }
3688
3689 if (id->driver_info == BTUSB_IGNORE)
3690 return -ENODEV;
3691
3692 if (id->driver_info & BTUSB_ATH3012) {
3693 struct usb_device *udev = interface_to_usbdev(intf);
3694
3695 /* Old firmware would otherwise let ath3k driver load
3696 * patch and sysconfig files
3697 */
3698 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3699 !btusb_qca_need_patch(udev))
3700 return -ENODEV;
3701 }
3702
3703 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3704 if (!data)
3705 return -ENOMEM;
3706
3707 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3708 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3709
3710 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3711 data->intr_ep = ep_desc;
3712 continue;
3713 }
3714
3715 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3716 data->bulk_tx_ep = ep_desc;
3717 continue;
3718 }
3719
3720 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3721 data->bulk_rx_ep = ep_desc;
3722 continue;
3723 }
3724 }
3725
3726 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3727 return -ENODEV;
3728
3729 if (id->driver_info & BTUSB_AMP) {
3730 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3731 data->cmdreq = 0x2b;
3732 } else {
3733 data->cmdreq_type = USB_TYPE_CLASS;
3734 data->cmdreq = 0x00;
3735 }
3736
3737 data->udev = interface_to_usbdev(intf);
3738 data->intf = intf;
3739
3740 INIT_WORK(&data->work, btusb_work);
3741 INIT_WORK(&data->waker, btusb_waker);
3742 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3743
3744 skb_queue_head_init(&data->acl_q);
3745
3746 init_usb_anchor(&data->deferred);
3747 init_usb_anchor(&data->tx_anchor);
3748 spin_lock_init(&data->txlock);
3749
3750 init_usb_anchor(&data->intr_anchor);
3751 init_usb_anchor(&data->bulk_anchor);
3752 init_usb_anchor(&data->isoc_anchor);
3753 init_usb_anchor(&data->diag_anchor);
3754 init_usb_anchor(&data->ctrl_anchor);
3755 spin_lock_init(&data->rxlock);
3756
3757 priv_size = 0;
3758
3759 data->recv_event = hci_recv_frame;
3760 data->recv_bulk = btusb_recv_bulk;
3761
3762 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3763 /* Allocate extra space for Intel device */
3764 priv_size += sizeof(struct btintel_data);
3765
3766 /* Override the rx handlers */
3767 data->recv_event = btintel_recv_event;
3768 data->recv_bulk = btusb_recv_bulk_intel;
3769 } else if (id->driver_info & BTUSB_REALTEK) {
3770 /* Allocate extra space for Realtek device */
3771 priv_size += sizeof(struct btrealtek_data);
3772
3773 data->recv_event = btusb_recv_event_realtek;
3774 } else if (id->driver_info & BTUSB_MEDIATEK) {
3775 /* Allocate extra space for Mediatek device */
3776 priv_size += sizeof(struct btmtk_data);
3777 }
3778
3779 data->recv_acl = hci_recv_frame;
3780
3781 hdev = hci_alloc_dev_priv(priv_size);
3782 if (!hdev)
3783 return -ENOMEM;
3784
3785 hdev->bus = HCI_USB;
3786 hci_set_drvdata(hdev, data);
3787
3788 data->hdev = hdev;
3789
3790 SET_HCIDEV_DEV(hdev, &intf->dev);
3791
3792 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3793 GPIOD_OUT_LOW);
3794 if (IS_ERR(reset_gpio)) {
3795 err = PTR_ERR(reset_gpio);
3796 goto out_free_dev;
3797 } else if (reset_gpio) {
3798 data->reset_gpio = reset_gpio;
3799 }
3800
3801 hdev->open = btusb_open;
3802 hdev->close = btusb_close;
3803 hdev->flush = btusb_flush;
3804 hdev->send = btusb_send_frame;
3805 hdev->notify = btusb_notify;
3806 hdev->wakeup = btusb_wakeup;
3807
3808#ifdef CONFIG_PM
3809 err = btusb_config_oob_wake(hdev);
3810 if (err)
3811 goto out_free_dev;
3812
3813 /* Marvell devices may need a specific chip configuration */
3814 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3815 err = marvell_config_oob_wake(hdev);
3816 if (err)
3817 goto out_free_dev;
3818 }
3819#endif
3820 if (id->driver_info & BTUSB_CW6622)
3821 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3822
3823 if (id->driver_info & BTUSB_BCM2045)
3824 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3825
3826 if (id->driver_info & BTUSB_BCM92035)
3827 hdev->setup = btusb_setup_bcm92035;
3828
3829 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3830 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3831 hdev->manufacturer = 15;
3832 hdev->setup = btbcm_setup_patchram;
3833 hdev->set_diag = btusb_bcm_set_diag;
3834 hdev->set_bdaddr = btbcm_set_bdaddr;
3835
3836 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3837 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3838 }
3839
3840 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3841 (id->driver_info & BTUSB_BCM_APPLE)) {
3842 hdev->manufacturer = 15;
3843 hdev->setup = btbcm_setup_apple;
3844 hdev->set_diag = btusb_bcm_set_diag;
3845
3846 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3847 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3848 }
3849
3850 /* Combined Intel Device setup to support multiple setup routine */
3851 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3852 err = btintel_configure_setup(hdev, btusb_driver.name);
3853 if (err)
3854 goto out_free_dev;
3855
3856 /* Transport specific configuration */
3857 hdev->send = btusb_send_frame_intel;
3858 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3859
3860 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3861 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3862
3863 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3864 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3865
3866 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3867 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3868 }
3869
3870 if (id->driver_info & BTUSB_MARVELL)
3871 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3872
3873 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3874 (id->driver_info & BTUSB_MEDIATEK)) {
3875 hdev->setup = btusb_mtk_setup;
3876 hdev->shutdown = btusb_mtk_shutdown;
3877 hdev->manufacturer = 70;
3878 hdev->cmd_timeout = btmtk_reset_sync;
3879 hdev->set_bdaddr = btmtk_set_bdaddr;
3880 hdev->send = btusb_send_frame_mtk;
3881 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3882 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3883 data->recv_acl = btmtk_usb_recv_acl;
3884 data->suspend = btmtk_usb_suspend;
3885 data->resume = btmtk_usb_resume;
3886 data->disconnect = btusb_mtk_disconnect;
3887 }
3888
3889 if (id->driver_info & BTUSB_SWAVE) {
3890 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3891 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3892 }
3893
3894 if (id->driver_info & BTUSB_INTEL_BOOT) {
3895 hdev->manufacturer = 2;
3896 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3897 }
3898
3899 if (id->driver_info & BTUSB_ATH3012) {
3900 data->setup_on_usb = btusb_setup_qca;
3901 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3902 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3903 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3904 }
3905
3906 if (id->driver_info & BTUSB_QCA_ROME) {
3907 data->setup_on_usb = btusb_setup_qca;
3908 hdev->shutdown = btusb_shutdown_qca;
3909 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3910 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3911 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3912 btusb_check_needs_reset_resume(intf);
3913 }
3914
3915 if (id->driver_info & BTUSB_QCA_WCN6855) {
3916 data->qca_dump.id_vendor = id->idVendor;
3917 data->qca_dump.id_product = id->idProduct;
3918 data->recv_event = btusb_recv_evt_qca;
3919 data->recv_acl = btusb_recv_acl_qca;
3920 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3921 data->setup_on_usb = btusb_setup_qca;
3922 hdev->shutdown = btusb_shutdown_qca;
3923 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3924 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3925 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3926 hci_set_msft_opcode(hdev, 0xFD70);
3927 }
3928
3929 if (id->driver_info & BTUSB_AMP) {
3930 /* AMP controllers do not support SCO packets */
3931 data->isoc = NULL;
3932 } else {
3933 /* Interface orders are hardcoded in the specification */
3934 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3935 data->isoc_ifnum = ifnum_base + 1;
3936 }
3937
3938 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3939 (id->driver_info & BTUSB_REALTEK)) {
3940 btrtl_set_driver_name(hdev, btusb_driver.name);
3941 hdev->setup = btusb_setup_realtek;
3942 hdev->shutdown = btrtl_shutdown_realtek;
3943 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3944 hdev->hw_error = btusb_rtl_hw_error;
3945
3946 /* Realtek devices need to set remote wakeup on auto-suspend */
3947 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3948 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3949 }
3950
3951 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3952 /* Support is advertised, but not implemented */
3953 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3954 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3955 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3956 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3957 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3958 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
3959 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
3960 }
3961
3962 if (!reset)
3963 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3964
3965 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3966 if (!disable_scofix)
3967 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3968 }
3969
3970 if (id->driver_info & BTUSB_BROKEN_ISOC)
3971 data->isoc = NULL;
3972
3973 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3974 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3975
3976 if (id->driver_info & BTUSB_INVALID_LE_STATES)
3977 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
3978
3979 if (id->driver_info & BTUSB_DIGIANSWER) {
3980 data->cmdreq_type = USB_TYPE_VENDOR;
3981 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3982 }
3983
3984 if (id->driver_info & BTUSB_CSR) {
3985 struct usb_device *udev = data->udev;
3986 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3987
3988 /* Old firmware would otherwise execute USB reset */
3989 if (bcdDevice < 0x117)
3990 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3991
3992 /* This must be set first in case we disable it for fakes */
3993 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3994
3995 /* Fake CSR devices with broken commands */
3996 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
3997 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3998 hdev->setup = btusb_setup_csr;
3999 }
4000
4001 if (id->driver_info & BTUSB_SNIFFER) {
4002 struct usb_device *udev = data->udev;
4003
4004 /* New sniffer firmware has crippled HCI interface */
4005 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4006 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4007 }
4008
4009 if (id->driver_info & BTUSB_INTEL_BOOT) {
4010 /* A bug in the bootloader causes that interrupt interface is
4011 * only enabled after receiving SetInterface(0, AltSetting=0).
4012 */
4013 err = usb_set_interface(data->udev, 0, 0);
4014 if (err < 0) {
4015 BT_ERR("failed to set interface 0, alt 0 %d", err);
4016 goto out_free_dev;
4017 }
4018 }
4019
4020 if (data->isoc) {
4021 err = usb_driver_claim_interface(&btusb_driver,
4022 data->isoc, data);
4023 if (err < 0)
4024 goto out_free_dev;
4025 }
4026
4027 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4028 if (!usb_driver_claim_interface(&btusb_driver,
4029 data->diag, data))
4030 __set_diag_interface(hdev);
4031 else
4032 data->diag = NULL;
4033 }
4034
4035 if (enable_autosuspend)
4036 usb_enable_autosuspend(data->udev);
4037
4038 data->poll_sync = enable_poll_sync;
4039
4040 err = hci_register_dev(hdev);
4041 if (err < 0)
4042 goto out_free_dev;
4043
4044 usb_set_intfdata(intf, data);
4045
4046 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4047 &force_poll_sync_fops);
4048
4049 return 0;
4050
4051out_free_dev:
4052 if (data->reset_gpio)
4053 gpiod_put(data->reset_gpio);
4054 hci_free_dev(hdev);
4055 return err;
4056}
4057
4058static void btusb_disconnect(struct usb_interface *intf)
4059{
4060 struct btusb_data *data = usb_get_intfdata(intf);
4061 struct hci_dev *hdev;
4062
4063 BT_DBG("intf %p", intf);
4064
4065 if (!data)
4066 return;
4067
4068 hdev = data->hdev;
4069 usb_set_intfdata(data->intf, NULL);
4070
4071 if (data->isoc)
4072 usb_set_intfdata(data->isoc, NULL);
4073
4074 if (data->diag)
4075 usb_set_intfdata(data->diag, NULL);
4076
4077 if (data->disconnect)
4078 data->disconnect(hdev);
4079
4080 hci_unregister_dev(hdev);
4081
4082 if (intf == data->intf) {
4083 if (data->isoc)
4084 usb_driver_release_interface(&btusb_driver, data->isoc);
4085 if (data->diag)
4086 usb_driver_release_interface(&btusb_driver, data->diag);
4087 } else if (intf == data->isoc) {
4088 if (data->diag)
4089 usb_driver_release_interface(&btusb_driver, data->diag);
4090 usb_driver_release_interface(&btusb_driver, data->intf);
4091 } else if (intf == data->diag) {
4092 usb_driver_release_interface(&btusb_driver, data->intf);
4093 if (data->isoc)
4094 usb_driver_release_interface(&btusb_driver, data->isoc);
4095 }
4096
4097 if (data->oob_wake_irq)
4098 device_init_wakeup(&data->udev->dev, false);
4099
4100 if (data->reset_gpio)
4101 gpiod_put(data->reset_gpio);
4102
4103 hci_free_dev(hdev);
4104}
4105
4106#ifdef CONFIG_PM
4107static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4108{
4109 struct btusb_data *data = usb_get_intfdata(intf);
4110
4111 BT_DBG("intf %p", intf);
4112
4113 /* Don't auto-suspend if there are connections; external suspend calls
4114 * shall never fail.
4115 */
4116 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4117 return -EBUSY;
4118
4119 if (data->suspend_count++)
4120 return 0;
4121
4122 spin_lock_irq(&data->txlock);
4123 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4124 set_bit(BTUSB_SUSPENDING, &data->flags);
4125 spin_unlock_irq(&data->txlock);
4126 } else {
4127 spin_unlock_irq(&data->txlock);
4128 data->suspend_count--;
4129 return -EBUSY;
4130 }
4131
4132 cancel_work_sync(&data->work);
4133
4134 if (data->suspend)
4135 data->suspend(data->hdev);
4136
4137 btusb_stop_traffic(data);
4138 usb_kill_anchored_urbs(&data->tx_anchor);
4139
4140 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4141 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4142 enable_irq_wake(data->oob_wake_irq);
4143 enable_irq(data->oob_wake_irq);
4144 }
4145
4146 /* For global suspend, Realtek devices lose the loaded fw
4147 * in them. But for autosuspend, firmware should remain.
4148 * Actually, it depends on whether the usb host sends
4149 * set feature (enable wakeup) or not.
4150 */
4151 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4152 if (PMSG_IS_AUTO(message) &&
4153 device_can_wakeup(&data->udev->dev))
4154 data->udev->do_remote_wakeup = 1;
4155 else if (!PMSG_IS_AUTO(message) &&
4156 !device_may_wakeup(&data->udev->dev)) {
4157 data->udev->do_remote_wakeup = 0;
4158 data->udev->reset_resume = 1;
4159 }
4160 }
4161
4162 return 0;
4163}
4164
4165static void play_deferred(struct btusb_data *data)
4166{
4167 struct urb *urb;
4168 int err;
4169
4170 while ((urb = usb_get_from_anchor(&data->deferred))) {
4171 usb_anchor_urb(urb, &data->tx_anchor);
4172
4173 err = usb_submit_urb(urb, GFP_ATOMIC);
4174 if (err < 0) {
4175 if (err != -EPERM && err != -ENODEV)
4176 BT_ERR("%s urb %p submission failed (%d)",
4177 data->hdev->name, urb, -err);
4178 kfree(urb->setup_packet);
4179 usb_unanchor_urb(urb);
4180 usb_free_urb(urb);
4181 break;
4182 }
4183
4184 data->tx_in_flight++;
4185 usb_free_urb(urb);
4186 }
4187
4188 /* Cleanup the rest deferred urbs. */
4189 while ((urb = usb_get_from_anchor(&data->deferred))) {
4190 kfree(urb->setup_packet);
4191 usb_free_urb(urb);
4192 }
4193}
4194
4195static int btusb_resume(struct usb_interface *intf)
4196{
4197 struct btusb_data *data = usb_get_intfdata(intf);
4198 struct hci_dev *hdev = data->hdev;
4199 int err = 0;
4200
4201 BT_DBG("intf %p", intf);
4202
4203 if (--data->suspend_count)
4204 return 0;
4205
4206 /* Disable only if not already disabled (keep it balanced) */
4207 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4208 disable_irq(data->oob_wake_irq);
4209 disable_irq_wake(data->oob_wake_irq);
4210 }
4211
4212 if (!test_bit(HCI_RUNNING, &hdev->flags))
4213 goto done;
4214
4215 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4216 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4217 if (err < 0) {
4218 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4219 goto failed;
4220 }
4221 }
4222
4223 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4224 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4225 if (err < 0) {
4226 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4227 goto failed;
4228 }
4229
4230 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4231 }
4232
4233 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4234 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4235 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4236 else
4237 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4238 }
4239
4240 if (data->resume)
4241 data->resume(hdev);
4242
4243 spin_lock_irq(&data->txlock);
4244 play_deferred(data);
4245 clear_bit(BTUSB_SUSPENDING, &data->flags);
4246 spin_unlock_irq(&data->txlock);
4247 schedule_work(&data->work);
4248
4249 return 0;
4250
4251failed:
4252 usb_scuttle_anchored_urbs(&data->deferred);
4253done:
4254 spin_lock_irq(&data->txlock);
4255 clear_bit(BTUSB_SUSPENDING, &data->flags);
4256 spin_unlock_irq(&data->txlock);
4257
4258 return err;
4259}
4260#endif
4261
4262#ifdef CONFIG_DEV_COREDUMP
4263static void btusb_coredump(struct device *dev)
4264{
4265 struct btusb_data *data = dev_get_drvdata(dev);
4266 struct hci_dev *hdev = data->hdev;
4267
4268 if (hdev->dump.coredump)
4269 hdev->dump.coredump(hdev);
4270}
4271#endif
4272
4273static struct usb_driver btusb_driver = {
4274 .name = "btusb",
4275 .probe = btusb_probe,
4276 .disconnect = btusb_disconnect,
4277#ifdef CONFIG_PM
4278 .suspend = btusb_suspend,
4279 .resume = btusb_resume,
4280#endif
4281 .id_table = btusb_table,
4282 .supports_autosuspend = 1,
4283 .disable_hub_initiated_lpm = 1,
4284
4285#ifdef CONFIG_DEV_COREDUMP
4286 .driver = {
4287 .coredump = btusb_coredump,
4288 },
4289#endif
4290};
4291
4292module_usb_driver(btusb_driver);
4293
4294module_param(disable_scofix, bool, 0644);
4295MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4296
4297module_param(force_scofix, bool, 0644);
4298MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4299
4300module_param(enable_autosuspend, bool, 0644);
4301MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4302
4303module_param(reset, bool, 0644);
4304MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4305
4306MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4307MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4308MODULE_VERSION(VERSION);
4309MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <linux/debugfs.h>
20#include <asm/unaligned.h>
21
22#include <net/bluetooth/bluetooth.h>
23#include <net/bluetooth/hci_core.h>
24
25#include "btintel.h"
26#include "btbcm.h"
27#include "btrtl.h"
28#include "btmtk.h"
29
30#define VERSION "0.8"
31
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE BIT(0)
41#define BTUSB_DIGIANSWER BIT(1)
42#define BTUSB_CSR BIT(2)
43#define BTUSB_SNIFFER BIT(3)
44#define BTUSB_BCM92035 BIT(4)
45#define BTUSB_BROKEN_ISOC BIT(5)
46#define BTUSB_WRONG_SCO_MTU BIT(6)
47#define BTUSB_ATH3012 BIT(7)
48#define BTUSB_INTEL_COMBINED BIT(8)
49#define BTUSB_INTEL_BOOT BIT(9)
50#define BTUSB_BCM_PATCHRAM BIT(10)
51#define BTUSB_MARVELL BIT(11)
52#define BTUSB_SWAVE BIT(12)
53#define BTUSB_AMP BIT(13)
54#define BTUSB_QCA_ROME BIT(14)
55#define BTUSB_BCM_APPLE BIT(15)
56#define BTUSB_REALTEK BIT(16)
57#define BTUSB_BCM2045 BIT(17)
58#define BTUSB_IFNUM_2 BIT(18)
59#define BTUSB_CW6622 BIT(19)
60#define BTUSB_MEDIATEK BIT(20)
61#define BTUSB_WIDEBAND_SPEECH BIT(21)
62#define BTUSB_VALID_LE_STATES BIT(22)
63#define BTUSB_QCA_WCN6855 BIT(23)
64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67#define BTUSB_ACTIONS_SEMI BIT(27)
68
69static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
75
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
78
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
82
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
85
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
88
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
91
92 /* Apple iMac11,1 */
93 { USB_DEVICE(0x05ac, 0x8215) },
94
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
97
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
100
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
103
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
106
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
109
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
112
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
115
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
119
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
122
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172
173 { } /* Terminating entry */
174};
175
176MODULE_DEVICE_TABLE(usb, btusb_table);
177
178static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH |
302 BTUSB_VALID_LE_STATES },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH |
305 BTUSB_VALID_LE_STATES },
306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH |
308 BTUSB_VALID_LE_STATES },
309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH |
311 BTUSB_VALID_LE_STATES },
312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH |
314 BTUSB_VALID_LE_STATES },
315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH |
317 BTUSB_VALID_LE_STATES },
318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH |
320 BTUSB_VALID_LE_STATES },
321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH |
323 BTUSB_VALID_LE_STATES },
324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH |
326 BTUSB_VALID_LE_STATES },
327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH |
329 BTUSB_VALID_LE_STATES },
330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH |
332 BTUSB_VALID_LE_STATES },
333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH |
335 BTUSB_VALID_LE_STATES },
336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH |
338 BTUSB_VALID_LE_STATES },
339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH |
341 BTUSB_VALID_LE_STATES },
342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH |
344 BTUSB_VALID_LE_STATES },
345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH |
347 BTUSB_VALID_LE_STATES },
348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH |
350 BTUSB_VALID_LE_STATES },
351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH |
353 BTUSB_VALID_LE_STATES },
354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH |
359 BTUSB_VALID_LE_STATES },
360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH |
362 BTUSB_VALID_LE_STATES },
363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH |
365 BTUSB_VALID_LE_STATES },
366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH |
368 BTUSB_VALID_LE_STATES },
369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH |
371 BTUSB_VALID_LE_STATES },
372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH |
374 BTUSB_VALID_LE_STATES },
375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH |
377 BTUSB_VALID_LE_STATES },
378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH |
383 BTUSB_VALID_LE_STATES },
384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH |
386 BTUSB_VALID_LE_STATES },
387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
388 BTUSB_WIDEBAND_SPEECH |
389 BTUSB_VALID_LE_STATES },
390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH |
392 BTUSB_VALID_LE_STATES },
393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH |
395 BTUSB_VALID_LE_STATES },
396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH |
398 BTUSB_VALID_LE_STATES },
399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH |
401 BTUSB_VALID_LE_STATES },
402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
405
406 /* QCA WCN785x chipset */
407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
410
411 /* Broadcom BCM2035 */
412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* Broadcom BCM2045 */
417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* IBM/Lenovo ThinkPad with Broadcom chip */
421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* HP laptop with Broadcom chip */
425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
426
427 /* Dell laptop with Broadcom chip */
428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
429
430 /* Dell Wireless 370 and 410 devices */
431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Belkin F8T012 and F8T013 devices */
435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Asus WL-BTD202 device */
439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
440
441 /* Kensington Bluetooth USB adapter */
442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
443
444 /* RTX Telecom based adapters with buggy SCO support */
445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
447
448 /* CONWISE Technology based adapters with buggy SCO support */
449 { USB_DEVICE(0x0e5e, 0x6622),
450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
451
452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
454
455 /* Digianswer devices */
456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
458
459 /* CSR BlueCore Bluetooth Sniffer */
460 { USB_DEVICE(0x0a12, 0x0002),
461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
462
463 /* Frontline ComProbe Bluetooth Sniffer */
464 { USB_DEVICE(0x16d3, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Marvell Bluetooth devices */
468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
471
472 /* Intel Bluetooth devices */
473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
481 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
482 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
483 BTUSB_INTEL_NO_WBS_SUPPORT |
484 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
486 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
487 BTUSB_INTEL_NO_WBS_SUPPORT |
488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
489 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
490 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
493
494 /* Other Intel Bluetooth devices */
495 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
496 .driver_info = BTUSB_IGNORE },
497
498 /* Realtek 8821CE Bluetooth devices */
499 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8822CE Bluetooth devices */
503 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507
508 /* Realtek 8822CU Bluetooth devices */
509 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511
512 /* Realtek 8852AE Bluetooth devices */
513 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527
528 /* Realtek 8852CE Bluetooth devices */
529 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
540 BTUSB_WIDEBAND_SPEECH },
541
542 /* Realtek 8852BE Bluetooth devices */
543 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
544 BTUSB_WIDEBAND_SPEECH },
545 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
554 BTUSB_WIDEBAND_SPEECH },
555 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
556 BTUSB_WIDEBAND_SPEECH },
557
558 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
559 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
560 BTUSB_WIDEBAND_SPEECH },
561 /* Realtek Bluetooth devices */
562 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
563 .driver_info = BTUSB_REALTEK },
564
565 /* MediaTek Bluetooth devices */
566 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
567 .driver_info = BTUSB_MEDIATEK |
568 BTUSB_WIDEBAND_SPEECH |
569 BTUSB_VALID_LE_STATES },
570
571 /* Additional MediaTek MT7615E Bluetooth devices */
572 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
573
574 /* Additional MediaTek MT7663 Bluetooth devices */
575 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
576 BTUSB_WIDEBAND_SPEECH |
577 BTUSB_VALID_LE_STATES },
578 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
579 BTUSB_WIDEBAND_SPEECH |
580 BTUSB_VALID_LE_STATES },
581
582 /* Additional MediaTek MT7668 Bluetooth devices */
583 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH |
585 BTUSB_VALID_LE_STATES },
586
587 /* Additional MediaTek MT7921 Bluetooth devices */
588 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
589 BTUSB_WIDEBAND_SPEECH |
590 BTUSB_VALID_LE_STATES },
591 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
592 BTUSB_WIDEBAND_SPEECH |
593 BTUSB_VALID_LE_STATES },
594 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
595 BTUSB_WIDEBAND_SPEECH |
596 BTUSB_VALID_LE_STATES },
597 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
598 BTUSB_WIDEBAND_SPEECH |
599 BTUSB_VALID_LE_STATES },
600 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
601 BTUSB_WIDEBAND_SPEECH |
602 BTUSB_VALID_LE_STATES },
603 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
604 BTUSB_WIDEBAND_SPEECH |
605 BTUSB_VALID_LE_STATES },
606 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
607 BTUSB_WIDEBAND_SPEECH |
608 BTUSB_VALID_LE_STATES },
609 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
610 BTUSB_WIDEBAND_SPEECH |
611 BTUSB_VALID_LE_STATES },
612 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
613 BTUSB_WIDEBAND_SPEECH |
614 BTUSB_VALID_LE_STATES },
615 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH |
617 BTUSB_VALID_LE_STATES },
618 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
619 BTUSB_WIDEBAND_SPEECH |
620 BTUSB_VALID_LE_STATES },
621
622 /* MediaTek MT7922A Bluetooth devices */
623 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
624 BTUSB_WIDEBAND_SPEECH |
625 BTUSB_VALID_LE_STATES },
626 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
627 BTUSB_WIDEBAND_SPEECH |
628 BTUSB_VALID_LE_STATES },
629 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
630 BTUSB_WIDEBAND_SPEECH |
631 BTUSB_VALID_LE_STATES },
632 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
633 BTUSB_WIDEBAND_SPEECH |
634 BTUSB_VALID_LE_STATES },
635 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
636 BTUSB_WIDEBAND_SPEECH |
637 BTUSB_VALID_LE_STATES },
638 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
639 BTUSB_WIDEBAND_SPEECH |
640 BTUSB_VALID_LE_STATES },
641 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
642 BTUSB_WIDEBAND_SPEECH |
643 BTUSB_VALID_LE_STATES },
644 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
645 BTUSB_WIDEBAND_SPEECH |
646 BTUSB_VALID_LE_STATES },
647 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
648 BTUSB_WIDEBAND_SPEECH |
649 BTUSB_VALID_LE_STATES },
650 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
651 BTUSB_WIDEBAND_SPEECH |
652 BTUSB_VALID_LE_STATES },
653 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
654 BTUSB_WIDEBAND_SPEECH |
655 BTUSB_VALID_LE_STATES },
656 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
657 BTUSB_WIDEBAND_SPEECH |
658 BTUSB_VALID_LE_STATES },
659 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
660 BTUSB_WIDEBAND_SPEECH |
661 BTUSB_VALID_LE_STATES },
662
663 /* Additional MediaTek MT7925 Bluetooth devices */
664 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
665 BTUSB_WIDEBAND_SPEECH |
666 BTUSB_VALID_LE_STATES },
667
668 /* Additional Realtek 8723AE Bluetooth devices */
669 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
670 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
671
672 /* Additional Realtek 8723BE Bluetooth devices */
673 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
674 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
675 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
676 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
677 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
678 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
679 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
680
681 /* Additional Realtek 8723BU Bluetooth devices */
682 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
683
684 /* Additional Realtek 8723DE Bluetooth devices */
685 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
686 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
687
688 /* Additional Realtek 8761BUV Bluetooth devices */
689 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
690 BTUSB_WIDEBAND_SPEECH },
691 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
692 BTUSB_WIDEBAND_SPEECH },
693 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
694 BTUSB_WIDEBAND_SPEECH },
695 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
696 BTUSB_WIDEBAND_SPEECH },
697 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
698 BTUSB_WIDEBAND_SPEECH },
699 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
700 BTUSB_WIDEBAND_SPEECH },
701 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
702 BTUSB_WIDEBAND_SPEECH },
703
704 /* Additional Realtek 8821AE Bluetooth devices */
705 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
706 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
707 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
708 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
709 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
710
711 /* Additional Realtek 8822BE Bluetooth devices */
712 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
713 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
714
715 /* Additional Realtek 8822CE Bluetooth devices */
716 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
725 BTUSB_WIDEBAND_SPEECH },
726 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
727 BTUSB_WIDEBAND_SPEECH },
728 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
737 BTUSB_WIDEBAND_SPEECH },
738
739 /* Actions Semiconductor ATS2851 based devices */
740 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
741
742 /* Silicon Wave based devices */
743 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
744
745 { } /* Terminating entry */
746};
747
748/* The Bluetooth USB module build into some devices needs to be reset on resume,
749 * this is a problem with the platform (likely shutting off all power) not with
750 * the module itself. So we use a DMI list to match known broken platforms.
751 */
752static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
753 {
754 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
755 .matches = {
756 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
757 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
758 },
759 },
760 {
761 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
762 .matches = {
763 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
764 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
765 },
766 },
767 {
768 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
769 .matches = {
770 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
771 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
772 },
773 },
774 {}
775};
776
777struct qca_dump_info {
778 /* fields for dump collection */
779 u16 id_vendor;
780 u16 id_product;
781 u32 fw_version;
782 u32 controller_id;
783 u32 ram_dump_size;
784 u16 ram_dump_seqno;
785};
786
787#define BTUSB_MAX_ISOC_FRAMES 10
788
789#define BTUSB_INTR_RUNNING 0
790#define BTUSB_BULK_RUNNING 1
791#define BTUSB_ISOC_RUNNING 2
792#define BTUSB_SUSPENDING 3
793#define BTUSB_DID_ISO_RESUME 4
794#define BTUSB_BOOTLOADER 5
795#define BTUSB_DOWNLOADING 6
796#define BTUSB_FIRMWARE_LOADED 7
797#define BTUSB_FIRMWARE_FAILED 8
798#define BTUSB_BOOTING 9
799#define BTUSB_DIAG_RUNNING 10
800#define BTUSB_OOB_WAKE_ENABLED 11
801#define BTUSB_HW_RESET_ACTIVE 12
802#define BTUSB_TX_WAIT_VND_EVT 13
803#define BTUSB_WAKEUP_AUTOSUSPEND 14
804#define BTUSB_USE_ALT3_FOR_WBS 15
805#define BTUSB_ALT6_CONTINUOUS_TX 16
806#define BTUSB_HW_SSR_ACTIVE 17
807
808struct btusb_data {
809 struct hci_dev *hdev;
810 struct usb_device *udev;
811 struct usb_interface *intf;
812 struct usb_interface *isoc;
813 struct usb_interface *diag;
814 unsigned isoc_ifnum;
815
816 unsigned long flags;
817
818 bool poll_sync;
819 int intr_interval;
820 struct work_struct work;
821 struct work_struct waker;
822 struct delayed_work rx_work;
823
824 struct sk_buff_head acl_q;
825
826 struct usb_anchor deferred;
827 struct usb_anchor tx_anchor;
828 int tx_in_flight;
829 spinlock_t txlock;
830
831 struct usb_anchor intr_anchor;
832 struct usb_anchor bulk_anchor;
833 struct usb_anchor isoc_anchor;
834 struct usb_anchor diag_anchor;
835 struct usb_anchor ctrl_anchor;
836 spinlock_t rxlock;
837
838 struct sk_buff *evt_skb;
839 struct sk_buff *acl_skb;
840 struct sk_buff *sco_skb;
841
842 struct usb_endpoint_descriptor *intr_ep;
843 struct usb_endpoint_descriptor *bulk_tx_ep;
844 struct usb_endpoint_descriptor *bulk_rx_ep;
845 struct usb_endpoint_descriptor *isoc_tx_ep;
846 struct usb_endpoint_descriptor *isoc_rx_ep;
847 struct usb_endpoint_descriptor *diag_tx_ep;
848 struct usb_endpoint_descriptor *diag_rx_ep;
849
850 struct gpio_desc *reset_gpio;
851
852 __u8 cmdreq_type;
853 __u8 cmdreq;
854
855 unsigned int sco_num;
856 unsigned int air_mode;
857 bool usb_alt6_packet_flow;
858 int isoc_altsetting;
859 int suspend_count;
860
861 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
862 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
863 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
864
865 int (*setup_on_usb)(struct hci_dev *hdev);
866
867 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
868 unsigned cmd_timeout_cnt;
869
870 struct qca_dump_info qca_dump;
871};
872
873static void btusb_reset(struct hci_dev *hdev)
874{
875 struct btusb_data *data;
876 int err;
877
878 if (hdev->reset) {
879 hdev->reset(hdev);
880 return;
881 }
882
883 data = hci_get_drvdata(hdev);
884 /* This is not an unbalanced PM reference since the device will reset */
885 err = usb_autopm_get_interface(data->intf);
886 if (err) {
887 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
888 return;
889 }
890
891 bt_dev_err(hdev, "Resetting usb device.");
892 usb_queue_reset_device(data->intf);
893}
894
895static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
896{
897 struct btusb_data *data = hci_get_drvdata(hdev);
898 struct gpio_desc *reset_gpio = data->reset_gpio;
899 struct btintel_data *intel_data = hci_get_priv(hdev);
900
901 if (++data->cmd_timeout_cnt < 5)
902 return;
903
904 if (intel_data->acpi_reset_method) {
905 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
906 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
907 return;
908 }
909
910 bt_dev_err(hdev, "Initiating acpi reset method");
911 /* If ACPI reset method fails, lets try with legacy GPIO
912 * toggling
913 */
914 if (!intel_data->acpi_reset_method(hdev)) {
915 return;
916 }
917 }
918
919 if (!reset_gpio) {
920 btusb_reset(hdev);
921 return;
922 }
923
924 /*
925 * Toggle the hard reset line if the platform provides one. The reset
926 * is going to yank the device off the USB and then replug. So doing
927 * once is enough. The cleanup is handled correctly on the way out
928 * (standard USB disconnect), and the new device is detected cleanly
929 * and bound to the driver again like it should be.
930 */
931 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
932 bt_dev_err(hdev, "last reset failed? Not resetting again");
933 return;
934 }
935
936 bt_dev_err(hdev, "Initiating HW reset via gpio");
937 gpiod_set_value_cansleep(reset_gpio, 1);
938 msleep(100);
939 gpiod_set_value_cansleep(reset_gpio, 0);
940}
941
942#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
943#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
944#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
945
946#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
947
948struct rtk_dev_coredump_hdr {
949 u8 type;
950 u8 code;
951 u8 reserved[2];
952} __packed;
953
954static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
955 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
956{
957 struct sk_buff *skb;
958
959 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
960 if (!skb)
961 return;
962
963 skb_put_data(skb, hdr, sizeof(*hdr));
964 if (len)
965 skb_put_data(skb, buf, len);
966
967 if (!hci_devcd_init(hdev, skb->len)) {
968 hci_devcd_append(hdev, skb);
969 hci_devcd_complete(hdev);
970 } else {
971 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
972 kfree_skb(skb);
973 }
974}
975
976static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
977{
978 struct btusb_data *data = hci_get_drvdata(hdev);
979 struct gpio_desc *reset_gpio = data->reset_gpio;
980 struct rtk_dev_coredump_hdr hdr = {
981 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
982 };
983
984 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
985
986 if (++data->cmd_timeout_cnt < 5)
987 return;
988
989 if (!reset_gpio) {
990 btusb_reset(hdev);
991 return;
992 }
993
994 /* Toggle the hard reset line. The Realtek device is going to
995 * yank itself off the USB and then replug. The cleanup is handled
996 * correctly on the way out (standard USB disconnect), and the new
997 * device is detected cleanly and bound to the driver again like
998 * it should be.
999 */
1000 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1001 bt_dev_err(hdev, "last reset failed? Not resetting again");
1002 return;
1003 }
1004
1005 bt_dev_err(hdev, "Reset Realtek device via gpio");
1006 gpiod_set_value_cansleep(reset_gpio, 1);
1007 msleep(200);
1008 gpiod_set_value_cansleep(reset_gpio, 0);
1009}
1010
1011static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1012{
1013 struct rtk_dev_coredump_hdr hdr = {
1014 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1015 .code = code,
1016 };
1017
1018 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1019
1020 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1021}
1022
1023static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1024{
1025 struct btusb_data *data = hci_get_drvdata(hdev);
1026 struct gpio_desc *reset_gpio = data->reset_gpio;
1027
1028 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1029 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1030 return;
1031 }
1032
1033 if (++data->cmd_timeout_cnt < 5)
1034 return;
1035
1036 if (reset_gpio) {
1037 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1038
1039 /* Toggle the hard reset line. The qca bt device is going to
1040 * yank itself off the USB and then replug. The cleanup is handled
1041 * correctly on the way out (standard USB disconnect), and the new
1042 * device is detected cleanly and bound to the driver again like
1043 * it should be.
1044 */
1045 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1046 bt_dev_err(hdev, "last reset failed? Not resetting again");
1047 return;
1048 }
1049
1050 gpiod_set_value_cansleep(reset_gpio, 0);
1051 msleep(200);
1052 gpiod_set_value_cansleep(reset_gpio, 1);
1053
1054 return;
1055 }
1056
1057 btusb_reset(hdev);
1058}
1059
1060static inline void btusb_free_frags(struct btusb_data *data)
1061{
1062 unsigned long flags;
1063
1064 spin_lock_irqsave(&data->rxlock, flags);
1065
1066 dev_kfree_skb_irq(data->evt_skb);
1067 data->evt_skb = NULL;
1068
1069 dev_kfree_skb_irq(data->acl_skb);
1070 data->acl_skb = NULL;
1071
1072 dev_kfree_skb_irq(data->sco_skb);
1073 data->sco_skb = NULL;
1074
1075 spin_unlock_irqrestore(&data->rxlock, flags);
1076}
1077
1078static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1079{
1080 if (data->intr_interval) {
1081 /* Trigger dequeue immediatelly if an event is received */
1082 schedule_delayed_work(&data->rx_work, 0);
1083 }
1084
1085 return data->recv_event(data->hdev, skb);
1086}
1087
1088static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1089{
1090 struct sk_buff *skb;
1091 unsigned long flags;
1092 int err = 0;
1093
1094 spin_lock_irqsave(&data->rxlock, flags);
1095 skb = data->evt_skb;
1096
1097 while (count) {
1098 int len;
1099
1100 if (!skb) {
1101 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1102 if (!skb) {
1103 err = -ENOMEM;
1104 break;
1105 }
1106
1107 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1108 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1109 }
1110
1111 len = min_t(uint, hci_skb_expect(skb), count);
1112 skb_put_data(skb, buffer, len);
1113
1114 count -= len;
1115 buffer += len;
1116 hci_skb_expect(skb) -= len;
1117
1118 if (skb->len == HCI_EVENT_HDR_SIZE) {
1119 /* Complete event header */
1120 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1121
1122 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1123 kfree_skb(skb);
1124 skb = NULL;
1125
1126 err = -EILSEQ;
1127 break;
1128 }
1129 }
1130
1131 if (!hci_skb_expect(skb)) {
1132 /* Complete frame */
1133 btusb_recv_event(data, skb);
1134 skb = NULL;
1135 }
1136 }
1137
1138 data->evt_skb = skb;
1139 spin_unlock_irqrestore(&data->rxlock, flags);
1140
1141 return err;
1142}
1143
1144static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1145{
1146 /* Only queue ACL packet if intr_interval is set as it means
1147 * force_poll_sync has been enabled.
1148 */
1149 if (!data->intr_interval)
1150 return data->recv_acl(data->hdev, skb);
1151
1152 skb_queue_tail(&data->acl_q, skb);
1153 schedule_delayed_work(&data->rx_work, data->intr_interval);
1154
1155 return 0;
1156}
1157
1158static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1159{
1160 struct sk_buff *skb;
1161 unsigned long flags;
1162 int err = 0;
1163
1164 spin_lock_irqsave(&data->rxlock, flags);
1165 skb = data->acl_skb;
1166
1167 while (count) {
1168 int len;
1169
1170 if (!skb) {
1171 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1172 if (!skb) {
1173 err = -ENOMEM;
1174 break;
1175 }
1176
1177 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1178 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1179 }
1180
1181 len = min_t(uint, hci_skb_expect(skb), count);
1182 skb_put_data(skb, buffer, len);
1183
1184 count -= len;
1185 buffer += len;
1186 hci_skb_expect(skb) -= len;
1187
1188 if (skb->len == HCI_ACL_HDR_SIZE) {
1189 __le16 dlen = hci_acl_hdr(skb)->dlen;
1190
1191 /* Complete ACL header */
1192 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1193
1194 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1195 kfree_skb(skb);
1196 skb = NULL;
1197
1198 err = -EILSEQ;
1199 break;
1200 }
1201 }
1202
1203 if (!hci_skb_expect(skb)) {
1204 /* Complete frame */
1205 btusb_recv_acl(data, skb);
1206 skb = NULL;
1207 }
1208 }
1209
1210 data->acl_skb = skb;
1211 spin_unlock_irqrestore(&data->rxlock, flags);
1212
1213 return err;
1214}
1215
1216static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1217 struct hci_sco_hdr *hdr)
1218{
1219 __u16 handle;
1220
1221 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1222 // Can't validate, userspace controls everything.
1223 return true;
1224
1225 /*
1226 * USB isochronous transfers are not designed to be reliable and may
1227 * lose fragments. When this happens, the next first fragment
1228 * encountered might actually be a continuation fragment.
1229 * Validate the handle to detect it and drop it, or else the upper
1230 * layer will get garbage for a while.
1231 */
1232
1233 handle = hci_handle(__le16_to_cpu(hdr->handle));
1234
1235 switch (hci_conn_lookup_type(hdev, handle)) {
1236 case SCO_LINK:
1237 case ESCO_LINK:
1238 return true;
1239 default:
1240 return false;
1241 }
1242}
1243
1244static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1245{
1246 struct sk_buff *skb;
1247 unsigned long flags;
1248 int err = 0;
1249
1250 spin_lock_irqsave(&data->rxlock, flags);
1251 skb = data->sco_skb;
1252
1253 while (count) {
1254 int len;
1255
1256 if (!skb) {
1257 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1258 if (!skb) {
1259 err = -ENOMEM;
1260 break;
1261 }
1262
1263 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1264 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1265 }
1266
1267 len = min_t(uint, hci_skb_expect(skb), count);
1268 skb_put_data(skb, buffer, len);
1269
1270 count -= len;
1271 buffer += len;
1272 hci_skb_expect(skb) -= len;
1273
1274 if (skb->len == HCI_SCO_HDR_SIZE) {
1275 /* Complete SCO header */
1276 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1277
1278 hci_skb_expect(skb) = hdr->dlen;
1279
1280 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1281 !btusb_validate_sco_handle(data->hdev, hdr)) {
1282 kfree_skb(skb);
1283 skb = NULL;
1284
1285 err = -EILSEQ;
1286 break;
1287 }
1288 }
1289
1290 if (!hci_skb_expect(skb)) {
1291 /* Complete frame */
1292 hci_recv_frame(data->hdev, skb);
1293 skb = NULL;
1294 }
1295 }
1296
1297 data->sco_skb = skb;
1298 spin_unlock_irqrestore(&data->rxlock, flags);
1299
1300 return err;
1301}
1302
1303static void btusb_intr_complete(struct urb *urb)
1304{
1305 struct hci_dev *hdev = urb->context;
1306 struct btusb_data *data = hci_get_drvdata(hdev);
1307 int err;
1308
1309 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1310 urb->actual_length);
1311
1312 if (!test_bit(HCI_RUNNING, &hdev->flags))
1313 return;
1314
1315 if (urb->status == 0) {
1316 hdev->stat.byte_rx += urb->actual_length;
1317
1318 if (btusb_recv_intr(data, urb->transfer_buffer,
1319 urb->actual_length) < 0) {
1320 bt_dev_err(hdev, "corrupted event packet");
1321 hdev->stat.err_rx++;
1322 }
1323 } else if (urb->status == -ENOENT) {
1324 /* Avoid suspend failed when usb_kill_urb */
1325 return;
1326 }
1327
1328 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1329 return;
1330
1331 usb_mark_last_busy(data->udev);
1332 usb_anchor_urb(urb, &data->intr_anchor);
1333
1334 err = usb_submit_urb(urb, GFP_ATOMIC);
1335 if (err < 0) {
1336 /* -EPERM: urb is being killed;
1337 * -ENODEV: device got disconnected
1338 */
1339 if (err != -EPERM && err != -ENODEV)
1340 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1341 urb, -err);
1342 if (err != -EPERM)
1343 hci_cmd_sync_cancel(hdev, -err);
1344 usb_unanchor_urb(urb);
1345 }
1346}
1347
1348static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1349{
1350 struct btusb_data *data = hci_get_drvdata(hdev);
1351 struct urb *urb;
1352 unsigned char *buf;
1353 unsigned int pipe;
1354 int err, size;
1355
1356 BT_DBG("%s", hdev->name);
1357
1358 if (!data->intr_ep)
1359 return -ENODEV;
1360
1361 urb = usb_alloc_urb(0, mem_flags);
1362 if (!urb)
1363 return -ENOMEM;
1364
1365 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1366
1367 buf = kmalloc(size, mem_flags);
1368 if (!buf) {
1369 usb_free_urb(urb);
1370 return -ENOMEM;
1371 }
1372
1373 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1374
1375 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1376 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1377
1378 urb->transfer_flags |= URB_FREE_BUFFER;
1379
1380 usb_anchor_urb(urb, &data->intr_anchor);
1381
1382 err = usb_submit_urb(urb, mem_flags);
1383 if (err < 0) {
1384 if (err != -EPERM && err != -ENODEV)
1385 bt_dev_err(hdev, "urb %p submission failed (%d)",
1386 urb, -err);
1387 if (err != -EPERM)
1388 hci_cmd_sync_cancel(hdev, -err);
1389 usb_unanchor_urb(urb);
1390 }
1391
1392 /* Only initialize intr_interval if URB poll sync is enabled */
1393 if (!data->poll_sync)
1394 goto done;
1395
1396 /* The units are frames (milliseconds) for full and low speed devices,
1397 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1398 * devices.
1399 *
1400 * This is done once on open/resume so it shouldn't change even if
1401 * force_poll_sync changes.
1402 */
1403 switch (urb->dev->speed) {
1404 case USB_SPEED_SUPER_PLUS:
1405 case USB_SPEED_SUPER: /* units are 125us */
1406 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1407 break;
1408 default:
1409 data->intr_interval = msecs_to_jiffies(urb->interval);
1410 break;
1411 }
1412
1413done:
1414 usb_free_urb(urb);
1415
1416 return err;
1417}
1418
1419static void btusb_bulk_complete(struct urb *urb)
1420{
1421 struct hci_dev *hdev = urb->context;
1422 struct btusb_data *data = hci_get_drvdata(hdev);
1423 int err;
1424
1425 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1426 urb->actual_length);
1427
1428 if (!test_bit(HCI_RUNNING, &hdev->flags))
1429 return;
1430
1431 if (urb->status == 0) {
1432 hdev->stat.byte_rx += urb->actual_length;
1433
1434 if (data->recv_bulk(data, urb->transfer_buffer,
1435 urb->actual_length) < 0) {
1436 bt_dev_err(hdev, "corrupted ACL packet");
1437 hdev->stat.err_rx++;
1438 }
1439 } else if (urb->status == -ENOENT) {
1440 /* Avoid suspend failed when usb_kill_urb */
1441 return;
1442 }
1443
1444 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1445 return;
1446
1447 usb_anchor_urb(urb, &data->bulk_anchor);
1448 usb_mark_last_busy(data->udev);
1449
1450 err = usb_submit_urb(urb, GFP_ATOMIC);
1451 if (err < 0) {
1452 /* -EPERM: urb is being killed;
1453 * -ENODEV: device got disconnected
1454 */
1455 if (err != -EPERM && err != -ENODEV)
1456 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1457 urb, -err);
1458 usb_unanchor_urb(urb);
1459 }
1460}
1461
1462static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1463{
1464 struct btusb_data *data = hci_get_drvdata(hdev);
1465 struct urb *urb;
1466 unsigned char *buf;
1467 unsigned int pipe;
1468 int err, size = HCI_MAX_FRAME_SIZE;
1469
1470 BT_DBG("%s", hdev->name);
1471
1472 if (!data->bulk_rx_ep)
1473 return -ENODEV;
1474
1475 urb = usb_alloc_urb(0, mem_flags);
1476 if (!urb)
1477 return -ENOMEM;
1478
1479 buf = kmalloc(size, mem_flags);
1480 if (!buf) {
1481 usb_free_urb(urb);
1482 return -ENOMEM;
1483 }
1484
1485 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1486
1487 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1488 btusb_bulk_complete, hdev);
1489
1490 urb->transfer_flags |= URB_FREE_BUFFER;
1491
1492 usb_mark_last_busy(data->udev);
1493 usb_anchor_urb(urb, &data->bulk_anchor);
1494
1495 err = usb_submit_urb(urb, mem_flags);
1496 if (err < 0) {
1497 if (err != -EPERM && err != -ENODEV)
1498 bt_dev_err(hdev, "urb %p submission failed (%d)",
1499 urb, -err);
1500 usb_unanchor_urb(urb);
1501 }
1502
1503 usb_free_urb(urb);
1504
1505 return err;
1506}
1507
1508static void btusb_isoc_complete(struct urb *urb)
1509{
1510 struct hci_dev *hdev = urb->context;
1511 struct btusb_data *data = hci_get_drvdata(hdev);
1512 int i, err;
1513
1514 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1515 urb->actual_length);
1516
1517 if (!test_bit(HCI_RUNNING, &hdev->flags))
1518 return;
1519
1520 if (urb->status == 0) {
1521 for (i = 0; i < urb->number_of_packets; i++) {
1522 unsigned int offset = urb->iso_frame_desc[i].offset;
1523 unsigned int length = urb->iso_frame_desc[i].actual_length;
1524
1525 if (urb->iso_frame_desc[i].status)
1526 continue;
1527
1528 hdev->stat.byte_rx += length;
1529
1530 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1531 length) < 0) {
1532 bt_dev_err(hdev, "corrupted SCO packet");
1533 hdev->stat.err_rx++;
1534 }
1535 }
1536 } else if (urb->status == -ENOENT) {
1537 /* Avoid suspend failed when usb_kill_urb */
1538 return;
1539 }
1540
1541 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1542 return;
1543
1544 usb_anchor_urb(urb, &data->isoc_anchor);
1545
1546 err = usb_submit_urb(urb, GFP_ATOMIC);
1547 if (err < 0) {
1548 /* -EPERM: urb is being killed;
1549 * -ENODEV: device got disconnected
1550 */
1551 if (err != -EPERM && err != -ENODEV)
1552 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1553 urb, -err);
1554 usb_unanchor_urb(urb);
1555 }
1556}
1557
1558static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1559 int mtu, struct btusb_data *data)
1560{
1561 int i = 0, offset = 0;
1562 unsigned int interval;
1563
1564 BT_DBG("len %d mtu %d", len, mtu);
1565
1566 /* For mSBC ALT 6 settings some chips need to transmit the data
1567 * continuously without the zero length of USB packets.
1568 */
1569 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1570 goto ignore_usb_alt6_packet_flow;
1571
1572 /* For mSBC ALT 6 setting the host will send the packet at continuous
1573 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1574 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1575 * To maintain the rate we send 63bytes of usb packets alternatively for
1576 * 7ms and 8ms to maintain the rate as 7.5ms.
1577 */
1578 if (data->usb_alt6_packet_flow) {
1579 interval = 7;
1580 data->usb_alt6_packet_flow = false;
1581 } else {
1582 interval = 6;
1583 data->usb_alt6_packet_flow = true;
1584 }
1585
1586 for (i = 0; i < interval; i++) {
1587 urb->iso_frame_desc[i].offset = offset;
1588 urb->iso_frame_desc[i].length = offset;
1589 }
1590
1591ignore_usb_alt6_packet_flow:
1592 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1593 urb->iso_frame_desc[i].offset = offset;
1594 urb->iso_frame_desc[i].length = len;
1595 i++;
1596 }
1597
1598 urb->number_of_packets = i;
1599}
1600
1601static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1602{
1603 int i, offset = 0;
1604
1605 BT_DBG("len %d mtu %d", len, mtu);
1606
1607 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1608 i++, offset += mtu, len -= mtu) {
1609 urb->iso_frame_desc[i].offset = offset;
1610 urb->iso_frame_desc[i].length = mtu;
1611 }
1612
1613 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1614 urb->iso_frame_desc[i].offset = offset;
1615 urb->iso_frame_desc[i].length = len;
1616 i++;
1617 }
1618
1619 urb->number_of_packets = i;
1620}
1621
1622static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1623{
1624 struct btusb_data *data = hci_get_drvdata(hdev);
1625 struct urb *urb;
1626 unsigned char *buf;
1627 unsigned int pipe;
1628 int err, size;
1629
1630 BT_DBG("%s", hdev->name);
1631
1632 if (!data->isoc_rx_ep)
1633 return -ENODEV;
1634
1635 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1636 if (!urb)
1637 return -ENOMEM;
1638
1639 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1640 BTUSB_MAX_ISOC_FRAMES;
1641
1642 buf = kmalloc(size, mem_flags);
1643 if (!buf) {
1644 usb_free_urb(urb);
1645 return -ENOMEM;
1646 }
1647
1648 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1649
1650 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1651 hdev, data->isoc_rx_ep->bInterval);
1652
1653 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1654
1655 __fill_isoc_descriptor(urb, size,
1656 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1657
1658 usb_anchor_urb(urb, &data->isoc_anchor);
1659
1660 err = usb_submit_urb(urb, mem_flags);
1661 if (err < 0) {
1662 if (err != -EPERM && err != -ENODEV)
1663 bt_dev_err(hdev, "urb %p submission failed (%d)",
1664 urb, -err);
1665 usb_unanchor_urb(urb);
1666 }
1667
1668 usb_free_urb(urb);
1669
1670 return err;
1671}
1672
1673static void btusb_diag_complete(struct urb *urb)
1674{
1675 struct hci_dev *hdev = urb->context;
1676 struct btusb_data *data = hci_get_drvdata(hdev);
1677 int err;
1678
1679 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1680 urb->actual_length);
1681
1682 if (urb->status == 0) {
1683 struct sk_buff *skb;
1684
1685 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1686 if (skb) {
1687 skb_put_data(skb, urb->transfer_buffer,
1688 urb->actual_length);
1689 hci_recv_diag(hdev, skb);
1690 }
1691 } else if (urb->status == -ENOENT) {
1692 /* Avoid suspend failed when usb_kill_urb */
1693 return;
1694 }
1695
1696 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1697 return;
1698
1699 usb_anchor_urb(urb, &data->diag_anchor);
1700 usb_mark_last_busy(data->udev);
1701
1702 err = usb_submit_urb(urb, GFP_ATOMIC);
1703 if (err < 0) {
1704 /* -EPERM: urb is being killed;
1705 * -ENODEV: device got disconnected
1706 */
1707 if (err != -EPERM && err != -ENODEV)
1708 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1709 urb, -err);
1710 usb_unanchor_urb(urb);
1711 }
1712}
1713
1714static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1715{
1716 struct btusb_data *data = hci_get_drvdata(hdev);
1717 struct urb *urb;
1718 unsigned char *buf;
1719 unsigned int pipe;
1720 int err, size = HCI_MAX_FRAME_SIZE;
1721
1722 BT_DBG("%s", hdev->name);
1723
1724 if (!data->diag_rx_ep)
1725 return -ENODEV;
1726
1727 urb = usb_alloc_urb(0, mem_flags);
1728 if (!urb)
1729 return -ENOMEM;
1730
1731 buf = kmalloc(size, mem_flags);
1732 if (!buf) {
1733 usb_free_urb(urb);
1734 return -ENOMEM;
1735 }
1736
1737 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1738
1739 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1740 btusb_diag_complete, hdev);
1741
1742 urb->transfer_flags |= URB_FREE_BUFFER;
1743
1744 usb_mark_last_busy(data->udev);
1745 usb_anchor_urb(urb, &data->diag_anchor);
1746
1747 err = usb_submit_urb(urb, mem_flags);
1748 if (err < 0) {
1749 if (err != -EPERM && err != -ENODEV)
1750 bt_dev_err(hdev, "urb %p submission failed (%d)",
1751 urb, -err);
1752 usb_unanchor_urb(urb);
1753 }
1754
1755 usb_free_urb(urb);
1756
1757 return err;
1758}
1759
1760static void btusb_tx_complete(struct urb *urb)
1761{
1762 struct sk_buff *skb = urb->context;
1763 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1764 struct btusb_data *data = hci_get_drvdata(hdev);
1765 unsigned long flags;
1766
1767 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1768 urb->actual_length);
1769
1770 if (!test_bit(HCI_RUNNING, &hdev->flags))
1771 goto done;
1772
1773 if (!urb->status) {
1774 hdev->stat.byte_tx += urb->transfer_buffer_length;
1775 } else {
1776 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1777 hci_cmd_sync_cancel(hdev, -urb->status);
1778 hdev->stat.err_tx++;
1779 }
1780
1781done:
1782 spin_lock_irqsave(&data->txlock, flags);
1783 data->tx_in_flight--;
1784 spin_unlock_irqrestore(&data->txlock, flags);
1785
1786 kfree(urb->setup_packet);
1787
1788 kfree_skb(skb);
1789}
1790
1791static void btusb_isoc_tx_complete(struct urb *urb)
1792{
1793 struct sk_buff *skb = urb->context;
1794 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1795
1796 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1797 urb->actual_length);
1798
1799 if (!test_bit(HCI_RUNNING, &hdev->flags))
1800 goto done;
1801
1802 if (!urb->status)
1803 hdev->stat.byte_tx += urb->transfer_buffer_length;
1804 else
1805 hdev->stat.err_tx++;
1806
1807done:
1808 kfree(urb->setup_packet);
1809
1810 kfree_skb(skb);
1811}
1812
1813static int btusb_open(struct hci_dev *hdev)
1814{
1815 struct btusb_data *data = hci_get_drvdata(hdev);
1816 int err;
1817
1818 BT_DBG("%s", hdev->name);
1819
1820 err = usb_autopm_get_interface(data->intf);
1821 if (err < 0)
1822 return err;
1823
1824 /* Patching USB firmware files prior to starting any URBs of HCI path
1825 * It is more safe to use USB bulk channel for downloading USB patch
1826 */
1827 if (data->setup_on_usb) {
1828 err = data->setup_on_usb(hdev);
1829 if (err < 0)
1830 goto setup_fail;
1831 }
1832
1833 data->intf->needs_remote_wakeup = 1;
1834
1835 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1836 goto done;
1837
1838 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1839 if (err < 0)
1840 goto failed;
1841
1842 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1843 if (err < 0) {
1844 usb_kill_anchored_urbs(&data->intr_anchor);
1845 goto failed;
1846 }
1847
1848 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1849 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1850
1851 if (data->diag) {
1852 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1853 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1854 }
1855
1856done:
1857 usb_autopm_put_interface(data->intf);
1858 return 0;
1859
1860failed:
1861 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1862setup_fail:
1863 usb_autopm_put_interface(data->intf);
1864 return err;
1865}
1866
1867static void btusb_stop_traffic(struct btusb_data *data)
1868{
1869 usb_kill_anchored_urbs(&data->intr_anchor);
1870 usb_kill_anchored_urbs(&data->bulk_anchor);
1871 usb_kill_anchored_urbs(&data->isoc_anchor);
1872 usb_kill_anchored_urbs(&data->diag_anchor);
1873 usb_kill_anchored_urbs(&data->ctrl_anchor);
1874}
1875
1876static int btusb_close(struct hci_dev *hdev)
1877{
1878 struct btusb_data *data = hci_get_drvdata(hdev);
1879 int err;
1880
1881 BT_DBG("%s", hdev->name);
1882
1883 cancel_delayed_work(&data->rx_work);
1884 cancel_work_sync(&data->work);
1885 cancel_work_sync(&data->waker);
1886
1887 skb_queue_purge(&data->acl_q);
1888
1889 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1890 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1891 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1892 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1893
1894 btusb_stop_traffic(data);
1895 btusb_free_frags(data);
1896
1897 err = usb_autopm_get_interface(data->intf);
1898 if (err < 0)
1899 goto failed;
1900
1901 data->intf->needs_remote_wakeup = 0;
1902
1903 /* Enable remote wake up for auto-suspend */
1904 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1905 data->intf->needs_remote_wakeup = 1;
1906
1907 usb_autopm_put_interface(data->intf);
1908
1909failed:
1910 usb_scuttle_anchored_urbs(&data->deferred);
1911 return 0;
1912}
1913
1914static int btusb_flush(struct hci_dev *hdev)
1915{
1916 struct btusb_data *data = hci_get_drvdata(hdev);
1917
1918 BT_DBG("%s", hdev->name);
1919
1920 cancel_delayed_work(&data->rx_work);
1921
1922 skb_queue_purge(&data->acl_q);
1923
1924 usb_kill_anchored_urbs(&data->tx_anchor);
1925 btusb_free_frags(data);
1926
1927 return 0;
1928}
1929
1930static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1931{
1932 struct btusb_data *data = hci_get_drvdata(hdev);
1933 struct usb_ctrlrequest *dr;
1934 struct urb *urb;
1935 unsigned int pipe;
1936
1937 urb = usb_alloc_urb(0, GFP_KERNEL);
1938 if (!urb)
1939 return ERR_PTR(-ENOMEM);
1940
1941 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1942 if (!dr) {
1943 usb_free_urb(urb);
1944 return ERR_PTR(-ENOMEM);
1945 }
1946
1947 dr->bRequestType = data->cmdreq_type;
1948 dr->bRequest = data->cmdreq;
1949 dr->wIndex = 0;
1950 dr->wValue = 0;
1951 dr->wLength = __cpu_to_le16(skb->len);
1952
1953 pipe = usb_sndctrlpipe(data->udev, 0x00);
1954
1955 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1956 skb->data, skb->len, btusb_tx_complete, skb);
1957
1958 skb->dev = (void *)hdev;
1959
1960 return urb;
1961}
1962
1963static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1964{
1965 struct btusb_data *data = hci_get_drvdata(hdev);
1966 struct urb *urb;
1967 unsigned int pipe;
1968
1969 if (!data->bulk_tx_ep)
1970 return ERR_PTR(-ENODEV);
1971
1972 urb = usb_alloc_urb(0, GFP_KERNEL);
1973 if (!urb)
1974 return ERR_PTR(-ENOMEM);
1975
1976 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1977
1978 usb_fill_bulk_urb(urb, data->udev, pipe,
1979 skb->data, skb->len, btusb_tx_complete, skb);
1980
1981 skb->dev = (void *)hdev;
1982
1983 return urb;
1984}
1985
1986static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1987{
1988 struct btusb_data *data = hci_get_drvdata(hdev);
1989 struct urb *urb;
1990 unsigned int pipe;
1991
1992 if (!data->isoc_tx_ep)
1993 return ERR_PTR(-ENODEV);
1994
1995 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1996 if (!urb)
1997 return ERR_PTR(-ENOMEM);
1998
1999 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2000
2001 usb_fill_int_urb(urb, data->udev, pipe,
2002 skb->data, skb->len, btusb_isoc_tx_complete,
2003 skb, data->isoc_tx_ep->bInterval);
2004
2005 urb->transfer_flags = URB_ISO_ASAP;
2006
2007 if (data->isoc_altsetting == 6)
2008 __fill_isoc_descriptor_msbc(urb, skb->len,
2009 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2010 data);
2011 else
2012 __fill_isoc_descriptor(urb, skb->len,
2013 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2014 skb->dev = (void *)hdev;
2015
2016 return urb;
2017}
2018
2019static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2020{
2021 struct btusb_data *data = hci_get_drvdata(hdev);
2022 int err;
2023
2024 usb_anchor_urb(urb, &data->tx_anchor);
2025
2026 err = usb_submit_urb(urb, GFP_KERNEL);
2027 if (err < 0) {
2028 if (err != -EPERM && err != -ENODEV)
2029 bt_dev_err(hdev, "urb %p submission failed (%d)",
2030 urb, -err);
2031 kfree(urb->setup_packet);
2032 usb_unanchor_urb(urb);
2033 } else {
2034 usb_mark_last_busy(data->udev);
2035 }
2036
2037 usb_free_urb(urb);
2038 return err;
2039}
2040
2041static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2042{
2043 struct btusb_data *data = hci_get_drvdata(hdev);
2044 unsigned long flags;
2045 bool suspending;
2046
2047 spin_lock_irqsave(&data->txlock, flags);
2048 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2049 if (!suspending)
2050 data->tx_in_flight++;
2051 spin_unlock_irqrestore(&data->txlock, flags);
2052
2053 if (!suspending)
2054 return submit_tx_urb(hdev, urb);
2055
2056 usb_anchor_urb(urb, &data->deferred);
2057 schedule_work(&data->waker);
2058
2059 usb_free_urb(urb);
2060 return 0;
2061}
2062
2063static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2064{
2065 struct urb *urb;
2066
2067 BT_DBG("%s", hdev->name);
2068
2069 switch (hci_skb_pkt_type(skb)) {
2070 case HCI_COMMAND_PKT:
2071 urb = alloc_ctrl_urb(hdev, skb);
2072 if (IS_ERR(urb))
2073 return PTR_ERR(urb);
2074
2075 hdev->stat.cmd_tx++;
2076 return submit_or_queue_tx_urb(hdev, urb);
2077
2078 case HCI_ACLDATA_PKT:
2079 urb = alloc_bulk_urb(hdev, skb);
2080 if (IS_ERR(urb))
2081 return PTR_ERR(urb);
2082
2083 hdev->stat.acl_tx++;
2084 return submit_or_queue_tx_urb(hdev, urb);
2085
2086 case HCI_SCODATA_PKT:
2087 if (hci_conn_num(hdev, SCO_LINK) < 1)
2088 return -ENODEV;
2089
2090 urb = alloc_isoc_urb(hdev, skb);
2091 if (IS_ERR(urb))
2092 return PTR_ERR(urb);
2093
2094 hdev->stat.sco_tx++;
2095 return submit_tx_urb(hdev, urb);
2096
2097 case HCI_ISODATA_PKT:
2098 urb = alloc_bulk_urb(hdev, skb);
2099 if (IS_ERR(urb))
2100 return PTR_ERR(urb);
2101
2102 return submit_or_queue_tx_urb(hdev, urb);
2103 }
2104
2105 return -EILSEQ;
2106}
2107
2108static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2109{
2110 struct btusb_data *data = hci_get_drvdata(hdev);
2111
2112 BT_DBG("%s evt %d", hdev->name, evt);
2113
2114 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2115 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2116 data->air_mode = evt;
2117 schedule_work(&data->work);
2118 }
2119}
2120
2121static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2122{
2123 struct btusb_data *data = hci_get_drvdata(hdev);
2124 struct usb_interface *intf = data->isoc;
2125 struct usb_endpoint_descriptor *ep_desc;
2126 int i, err;
2127
2128 if (!data->isoc)
2129 return -ENODEV;
2130
2131 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2132 if (err < 0) {
2133 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2134 return err;
2135 }
2136
2137 data->isoc_altsetting = altsetting;
2138
2139 data->isoc_tx_ep = NULL;
2140 data->isoc_rx_ep = NULL;
2141
2142 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2143 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2144
2145 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2146 data->isoc_tx_ep = ep_desc;
2147 continue;
2148 }
2149
2150 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2151 data->isoc_rx_ep = ep_desc;
2152 continue;
2153 }
2154 }
2155
2156 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2157 bt_dev_err(hdev, "invalid SCO descriptors");
2158 return -ENODEV;
2159 }
2160
2161 return 0;
2162}
2163
2164static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2165{
2166 struct btusb_data *data = hci_get_drvdata(hdev);
2167 int err;
2168
2169 if (data->isoc_altsetting != new_alts) {
2170 unsigned long flags;
2171
2172 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2173 usb_kill_anchored_urbs(&data->isoc_anchor);
2174
2175 /* When isochronous alternate setting needs to be
2176 * changed, because SCO connection has been added
2177 * or removed, a packet fragment may be left in the
2178 * reassembling state. This could lead to wrongly
2179 * assembled fragments.
2180 *
2181 * Clear outstanding fragment when selecting a new
2182 * alternate setting.
2183 */
2184 spin_lock_irqsave(&data->rxlock, flags);
2185 dev_kfree_skb_irq(data->sco_skb);
2186 data->sco_skb = NULL;
2187 spin_unlock_irqrestore(&data->rxlock, flags);
2188
2189 err = __set_isoc_interface(hdev, new_alts);
2190 if (err < 0)
2191 return err;
2192 }
2193
2194 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2195 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2196 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2197 else
2198 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2199 }
2200
2201 return 0;
2202}
2203
2204static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2205 int alt)
2206{
2207 struct usb_interface *intf = data->isoc;
2208 int i;
2209
2210 BT_DBG("Looking for Alt no :%d", alt);
2211
2212 if (!intf)
2213 return NULL;
2214
2215 for (i = 0; i < intf->num_altsetting; i++) {
2216 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2217 return &intf->altsetting[i];
2218 }
2219
2220 return NULL;
2221}
2222
2223static void btusb_work(struct work_struct *work)
2224{
2225 struct btusb_data *data = container_of(work, struct btusb_data, work);
2226 struct hci_dev *hdev = data->hdev;
2227 int new_alts = 0;
2228 int err;
2229
2230 if (data->sco_num > 0) {
2231 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2232 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2233 if (err < 0) {
2234 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2235 usb_kill_anchored_urbs(&data->isoc_anchor);
2236 return;
2237 }
2238
2239 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2240 }
2241
2242 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2243 if (hdev->voice_setting & 0x0020) {
2244 static const int alts[3] = { 2, 4, 5 };
2245
2246 new_alts = alts[data->sco_num - 1];
2247 } else {
2248 new_alts = data->sco_num;
2249 }
2250 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2251 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2252 * many adapters do not support it. Alt 1 appears to
2253 * work for all adapters that do not have alt 6, and
2254 * which work with WBS at all. Some devices prefer
2255 * alt 3 (HCI payload >= 60 Bytes let air packet
2256 * data satisfy 60 bytes), requiring
2257 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2258 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2259 */
2260 if (btusb_find_altsetting(data, 6))
2261 new_alts = 6;
2262 else if (btusb_find_altsetting(data, 3) &&
2263 hdev->sco_mtu >= 72 &&
2264 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2265 new_alts = 3;
2266 else
2267 new_alts = 1;
2268 }
2269
2270 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2271 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2272 } else {
2273 usb_kill_anchored_urbs(&data->isoc_anchor);
2274
2275 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2276 __set_isoc_interface(hdev, 0);
2277
2278 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2279 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2280 }
2281}
2282
2283static void btusb_waker(struct work_struct *work)
2284{
2285 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2286 int err;
2287
2288 err = usb_autopm_get_interface(data->intf);
2289 if (err < 0)
2290 return;
2291
2292 usb_autopm_put_interface(data->intf);
2293}
2294
2295static void btusb_rx_work(struct work_struct *work)
2296{
2297 struct btusb_data *data = container_of(work, struct btusb_data,
2298 rx_work.work);
2299 struct sk_buff *skb;
2300
2301 /* Dequeue ACL data received during the interval */
2302 while ((skb = skb_dequeue(&data->acl_q)))
2303 data->recv_acl(data->hdev, skb);
2304}
2305
2306static int btusb_setup_bcm92035(struct hci_dev *hdev)
2307{
2308 struct sk_buff *skb;
2309 u8 val = 0x00;
2310
2311 BT_DBG("%s", hdev->name);
2312
2313 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2314 if (IS_ERR(skb))
2315 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2316 else
2317 kfree_skb(skb);
2318
2319 return 0;
2320}
2321
2322static int btusb_setup_csr(struct hci_dev *hdev)
2323{
2324 struct btusb_data *data = hci_get_drvdata(hdev);
2325 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2326 struct hci_rp_read_local_version *rp;
2327 struct sk_buff *skb;
2328 bool is_fake = false;
2329 int ret;
2330
2331 BT_DBG("%s", hdev->name);
2332
2333 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2334 HCI_INIT_TIMEOUT);
2335 if (IS_ERR(skb)) {
2336 int err = PTR_ERR(skb);
2337 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2338 return err;
2339 }
2340
2341 rp = skb_pull_data(skb, sizeof(*rp));
2342 if (!rp) {
2343 bt_dev_err(hdev, "CSR: Local version length mismatch");
2344 kfree_skb(skb);
2345 return -EIO;
2346 }
2347
2348 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2349 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2350
2351 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2352 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2353 le16_to_cpu(rp->manufacturer));
2354
2355 /* Detect a wide host of Chinese controllers that aren't CSR.
2356 *
2357 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2358 *
2359 * The main thing they have in common is that these are really popular low-cost
2360 * options that support newer Bluetooth versions but rely on heavy VID/PID
2361 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2362 *
2363 * We detect actual CSR devices by checking that the HCI manufacturer code
2364 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2365 * HCI rev values always match. As they both store the firmware number.
2366 */
2367 if (le16_to_cpu(rp->manufacturer) != 10 ||
2368 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2369 is_fake = true;
2370
2371 /* Known legit CSR firmware build numbers and their supported BT versions:
2372 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2373 * - 1.2 (0x2) -> 0x04d9, 0x0529
2374 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2375 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2376 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2377 *
2378 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2379 * support BT 1.1 only; so it's a dead giveaway when some
2380 * third-party BT 4.0 dongle reuses it.
2381 */
2382 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2383 rp->hci_ver > BLUETOOTH_VER_1_1)
2384 is_fake = true;
2385
2386 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2387 rp->hci_ver > BLUETOOTH_VER_1_2)
2388 is_fake = true;
2389
2390 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2391 rp->hci_ver > BLUETOOTH_VER_2_0)
2392 is_fake = true;
2393
2394 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2395 rp->hci_ver > BLUETOOTH_VER_2_1)
2396 is_fake = true;
2397
2398 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2399 rp->hci_ver > BLUETOOTH_VER_4_0)
2400 is_fake = true;
2401
2402 /* Other clones which beat all the above checks */
2403 else if (bcdDevice == 0x0134 &&
2404 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2405 rp->hci_ver == BLUETOOTH_VER_2_0)
2406 is_fake = true;
2407
2408 if (is_fake) {
2409 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2410
2411 /* Generally these clones have big discrepancies between
2412 * advertised features and what's actually supported.
2413 * Probably will need to be expanded in the future;
2414 * without these the controller will lock up.
2415 */
2416 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2417 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2418 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2419 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2420
2421 /* Clear the reset quirk since this is not an actual
2422 * early Bluetooth 1.1 device from CSR.
2423 */
2424 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2425 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2426
2427 /*
2428 * Special workaround for these BT 4.0 chip clones, and potentially more:
2429 *
2430 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2431 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2432 *
2433 * These controllers are really messed-up.
2434 *
2435 * 1. Their bulk RX endpoint will never report any data unless
2436 * the device was suspended at least once (yes, really).
2437 * 2. They will not wakeup when autosuspended and receiving data
2438 * on their bulk RX endpoint from e.g. a keyboard or mouse
2439 * (IOW remote-wakeup support is broken for the bulk endpoint).
2440 *
2441 * To fix 1. enable runtime-suspend, force-suspend the
2442 * HCI and then wake-it up by disabling runtime-suspend.
2443 *
2444 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2445 * will still be autosuspended when it is not open.
2446 *
2447 * --
2448 *
2449 * Because these are widespread problems we prefer generic solutions; so
2450 * apply this initialization quirk to every controller that gets here,
2451 * it should be harmless. The alternative is to not work at all.
2452 */
2453 pm_runtime_allow(&data->udev->dev);
2454
2455 ret = pm_runtime_suspend(&data->udev->dev);
2456 if (ret >= 0)
2457 msleep(200);
2458 else
2459 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2460
2461 pm_runtime_forbid(&data->udev->dev);
2462
2463 device_set_wakeup_capable(&data->udev->dev, false);
2464
2465 /* Re-enable autosuspend if this was requested */
2466 if (enable_autosuspend)
2467 usb_enable_autosuspend(data->udev);
2468 }
2469
2470 kfree_skb(skb);
2471
2472 return 0;
2473}
2474
2475static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2476{
2477 struct sk_buff *skb;
2478 struct hci_event_hdr *hdr;
2479 struct hci_ev_cmd_complete *evt;
2480
2481 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2482 if (!skb)
2483 return -ENOMEM;
2484
2485 hdr = skb_put(skb, sizeof(*hdr));
2486 hdr->evt = HCI_EV_CMD_COMPLETE;
2487 hdr->plen = sizeof(*evt) + 1;
2488
2489 evt = skb_put(skb, sizeof(*evt));
2490 evt->ncmd = 0x01;
2491 evt->opcode = cpu_to_le16(opcode);
2492
2493 skb_put_u8(skb, 0x00);
2494
2495 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2496
2497 return hci_recv_frame(hdev, skb);
2498}
2499
2500static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2501 int count)
2502{
2503 struct hci_dev *hdev = data->hdev;
2504
2505 /* When the device is in bootloader mode, then it can send
2506 * events via the bulk endpoint. These events are treated the
2507 * same way as the ones received from the interrupt endpoint.
2508 */
2509 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2510 return btusb_recv_intr(data, buffer, count);
2511
2512 return btusb_recv_bulk(data, buffer, count);
2513}
2514
2515static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2516{
2517 struct urb *urb;
2518
2519 BT_DBG("%s", hdev->name);
2520
2521 switch (hci_skb_pkt_type(skb)) {
2522 case HCI_COMMAND_PKT:
2523 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2524 struct hci_command_hdr *cmd = (void *)skb->data;
2525 __u16 opcode = le16_to_cpu(cmd->opcode);
2526
2527 /* When in bootloader mode and the command 0xfc09
2528 * is received, it needs to be send down the
2529 * bulk endpoint. So allocate a bulk URB instead.
2530 */
2531 if (opcode == 0xfc09)
2532 urb = alloc_bulk_urb(hdev, skb);
2533 else
2534 urb = alloc_ctrl_urb(hdev, skb);
2535
2536 /* When the 0xfc01 command is issued to boot into
2537 * the operational firmware, it will actually not
2538 * send a command complete event. To keep the flow
2539 * control working inject that event here.
2540 */
2541 if (opcode == 0xfc01)
2542 inject_cmd_complete(hdev, opcode);
2543 } else {
2544 urb = alloc_ctrl_urb(hdev, skb);
2545 }
2546 if (IS_ERR(urb))
2547 return PTR_ERR(urb);
2548
2549 hdev->stat.cmd_tx++;
2550 return submit_or_queue_tx_urb(hdev, urb);
2551
2552 case HCI_ACLDATA_PKT:
2553 urb = alloc_bulk_urb(hdev, skb);
2554 if (IS_ERR(urb))
2555 return PTR_ERR(urb);
2556
2557 hdev->stat.acl_tx++;
2558 return submit_or_queue_tx_urb(hdev, urb);
2559
2560 case HCI_SCODATA_PKT:
2561 if (hci_conn_num(hdev, SCO_LINK) < 1)
2562 return -ENODEV;
2563
2564 urb = alloc_isoc_urb(hdev, skb);
2565 if (IS_ERR(urb))
2566 return PTR_ERR(urb);
2567
2568 hdev->stat.sco_tx++;
2569 return submit_tx_urb(hdev, urb);
2570
2571 case HCI_ISODATA_PKT:
2572 urb = alloc_bulk_urb(hdev, skb);
2573 if (IS_ERR(urb))
2574 return PTR_ERR(urb);
2575
2576 return submit_or_queue_tx_urb(hdev, urb);
2577 }
2578
2579 return -EILSEQ;
2580}
2581
2582static int btusb_setup_realtek(struct hci_dev *hdev)
2583{
2584 struct btusb_data *data = hci_get_drvdata(hdev);
2585 int ret;
2586
2587 ret = btrtl_setup_realtek(hdev);
2588
2589 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2590 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2591
2592 return ret;
2593}
2594
2595static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2596{
2597 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2598 struct rtk_dev_coredump_hdr hdr = {
2599 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2600 };
2601
2602 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2603 skb->len);
2604
2605 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2606 kfree_skb(skb);
2607
2608 return 0;
2609 }
2610
2611 return hci_recv_frame(hdev, skb);
2612}
2613
2614/* UHW CR mapping */
2615#define MTK_BT_MISC 0x70002510
2616#define MTK_BT_SUBSYS_RST 0x70002610
2617#define MTK_UDMA_INT_STA_BT 0x74000024
2618#define MTK_UDMA_INT_STA_BT1 0x74000308
2619#define MTK_BT_WDT_STATUS 0x740003A0
2620#define MTK_EP_RST_OPT 0x74011890
2621#define MTK_EP_RST_IN_OUT_OPT 0x00010001
2622#define MTK_BT_RST_DONE 0x00000100
2623#define MTK_BT_RESET_REG_CONNV3 0x70028610
2624#define MTK_BT_READ_DEV_ID 0x70010200
2625
2626
2627static void btusb_mtk_wmt_recv(struct urb *urb)
2628{
2629 struct hci_dev *hdev = urb->context;
2630 struct btusb_data *data = hci_get_drvdata(hdev);
2631 struct sk_buff *skb;
2632 int err;
2633
2634 if (urb->status == 0 && urb->actual_length > 0) {
2635 hdev->stat.byte_rx += urb->actual_length;
2636
2637 /* WMT event shouldn't be fragmented and the size should be
2638 * less than HCI_WMT_MAX_EVENT_SIZE.
2639 */
2640 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2641 if (!skb) {
2642 hdev->stat.err_rx++;
2643 kfree(urb->setup_packet);
2644 return;
2645 }
2646
2647 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2648 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2649
2650 /* When someone waits for the WMT event, the skb is being cloned
2651 * and being processed the events from there then.
2652 */
2653 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2654 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2655 if (!data->evt_skb) {
2656 kfree_skb(skb);
2657 kfree(urb->setup_packet);
2658 return;
2659 }
2660 }
2661
2662 err = hci_recv_frame(hdev, skb);
2663 if (err < 0) {
2664 kfree_skb(data->evt_skb);
2665 data->evt_skb = NULL;
2666 kfree(urb->setup_packet);
2667 return;
2668 }
2669
2670 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2671 &data->flags)) {
2672 /* Barrier to sync with other CPUs */
2673 smp_mb__after_atomic();
2674 wake_up_bit(&data->flags,
2675 BTUSB_TX_WAIT_VND_EVT);
2676 }
2677 kfree(urb->setup_packet);
2678 return;
2679 } else if (urb->status == -ENOENT) {
2680 /* Avoid suspend failed when usb_kill_urb */
2681 return;
2682 }
2683
2684 usb_mark_last_busy(data->udev);
2685
2686 /* The URB complete handler is still called with urb->actual_length = 0
2687 * when the event is not available, so we should keep re-submitting
2688 * URB until WMT event returns, Also, It's necessary to wait some time
2689 * between the two consecutive control URBs to relax the target device
2690 * to generate the event. Otherwise, the WMT event cannot return from
2691 * the device successfully.
2692 */
2693 udelay(500);
2694
2695 usb_anchor_urb(urb, &data->ctrl_anchor);
2696 err = usb_submit_urb(urb, GFP_ATOMIC);
2697 if (err < 0) {
2698 kfree(urb->setup_packet);
2699 /* -EPERM: urb is being killed;
2700 * -ENODEV: device got disconnected
2701 */
2702 if (err != -EPERM && err != -ENODEV)
2703 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2704 urb, -err);
2705 usb_unanchor_urb(urb);
2706 }
2707}
2708
2709static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2710{
2711 struct btusb_data *data = hci_get_drvdata(hdev);
2712 struct usb_ctrlrequest *dr;
2713 unsigned char *buf;
2714 int err, size = 64;
2715 unsigned int pipe;
2716 struct urb *urb;
2717
2718 urb = usb_alloc_urb(0, GFP_KERNEL);
2719 if (!urb)
2720 return -ENOMEM;
2721
2722 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2723 if (!dr) {
2724 usb_free_urb(urb);
2725 return -ENOMEM;
2726 }
2727
2728 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2729 dr->bRequest = 1;
2730 dr->wIndex = cpu_to_le16(0);
2731 dr->wValue = cpu_to_le16(48);
2732 dr->wLength = cpu_to_le16(size);
2733
2734 buf = kmalloc(size, GFP_KERNEL);
2735 if (!buf) {
2736 kfree(dr);
2737 usb_free_urb(urb);
2738 return -ENOMEM;
2739 }
2740
2741 pipe = usb_rcvctrlpipe(data->udev, 0);
2742
2743 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2744 buf, size, btusb_mtk_wmt_recv, hdev);
2745
2746 urb->transfer_flags |= URB_FREE_BUFFER;
2747
2748 usb_anchor_urb(urb, &data->ctrl_anchor);
2749 err = usb_submit_urb(urb, GFP_KERNEL);
2750 if (err < 0) {
2751 if (err != -EPERM && err != -ENODEV)
2752 bt_dev_err(hdev, "urb %p submission failed (%d)",
2753 urb, -err);
2754 usb_unanchor_urb(urb);
2755 }
2756
2757 usb_free_urb(urb);
2758
2759 return err;
2760}
2761
2762static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2763 struct btmtk_hci_wmt_params *wmt_params)
2764{
2765 struct btusb_data *data = hci_get_drvdata(hdev);
2766 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2767 u32 hlen, status = BTMTK_WMT_INVALID;
2768 struct btmtk_hci_wmt_evt *wmt_evt;
2769 struct btmtk_hci_wmt_cmd *wc;
2770 struct btmtk_wmt_hdr *hdr;
2771 int err;
2772
2773 /* Send the WMT command and wait until the WMT event returns */
2774 hlen = sizeof(*hdr) + wmt_params->dlen;
2775 if (hlen > 255)
2776 return -EINVAL;
2777
2778 wc = kzalloc(hlen, GFP_KERNEL);
2779 if (!wc)
2780 return -ENOMEM;
2781
2782 hdr = &wc->hdr;
2783 hdr->dir = 1;
2784 hdr->op = wmt_params->op;
2785 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2786 hdr->flag = wmt_params->flag;
2787 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2788
2789 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2790
2791 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2792 * it needs constantly polling control pipe until the host received the
2793 * WMT event, thus, we should require to specifically acquire PM counter
2794 * on the USB to prevent the interface from entering auto suspended
2795 * while WMT cmd/event in progress.
2796 */
2797 err = usb_autopm_get_interface(data->intf);
2798 if (err < 0)
2799 goto err_free_wc;
2800
2801 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2802
2803 if (err < 0) {
2804 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2805 usb_autopm_put_interface(data->intf);
2806 goto err_free_wc;
2807 }
2808
2809 /* Submit control IN URB on demand to process the WMT event */
2810 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2811
2812 usb_autopm_put_interface(data->intf);
2813
2814 if (err < 0)
2815 goto err_free_wc;
2816
2817 /* The vendor specific WMT commands are all answered by a vendor
2818 * specific event and will have the Command Status or Command
2819 * Complete as with usual HCI command flow control.
2820 *
2821 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2822 * state to be cleared. The driver specific event receive routine
2823 * will clear that state and with that indicate completion of the
2824 * WMT command.
2825 */
2826 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2827 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2828 if (err == -EINTR) {
2829 bt_dev_err(hdev, "Execution of wmt command interrupted");
2830 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2831 goto err_free_wc;
2832 }
2833
2834 if (err) {
2835 bt_dev_err(hdev, "Execution of wmt command timed out");
2836 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2837 err = -ETIMEDOUT;
2838 goto err_free_wc;
2839 }
2840
2841 if (data->evt_skb == NULL)
2842 goto err_free_wc;
2843
2844 /* Parse and handle the return WMT event */
2845 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2846 if (wmt_evt->whdr.op != hdr->op) {
2847 bt_dev_err(hdev, "Wrong op received %d expected %d",
2848 wmt_evt->whdr.op, hdr->op);
2849 err = -EIO;
2850 goto err_free_skb;
2851 }
2852
2853 switch (wmt_evt->whdr.op) {
2854 case BTMTK_WMT_SEMAPHORE:
2855 if (wmt_evt->whdr.flag == 2)
2856 status = BTMTK_WMT_PATCH_UNDONE;
2857 else
2858 status = BTMTK_WMT_PATCH_DONE;
2859 break;
2860 case BTMTK_WMT_FUNC_CTRL:
2861 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2862 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2863 status = BTMTK_WMT_ON_DONE;
2864 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2865 status = BTMTK_WMT_ON_PROGRESS;
2866 else
2867 status = BTMTK_WMT_ON_UNDONE;
2868 break;
2869 case BTMTK_WMT_PATCH_DWNLD:
2870 if (wmt_evt->whdr.flag == 2)
2871 status = BTMTK_WMT_PATCH_DONE;
2872 else if (wmt_evt->whdr.flag == 1)
2873 status = BTMTK_WMT_PATCH_PROGRESS;
2874 else
2875 status = BTMTK_WMT_PATCH_UNDONE;
2876 break;
2877 }
2878
2879 if (wmt_params->status)
2880 *wmt_params->status = status;
2881
2882err_free_skb:
2883 kfree_skb(data->evt_skb);
2884 data->evt_skb = NULL;
2885err_free_wc:
2886 kfree(wc);
2887 return err;
2888}
2889
2890static int btusb_mtk_func_query(struct hci_dev *hdev)
2891{
2892 struct btmtk_hci_wmt_params wmt_params;
2893 int status, err;
2894 u8 param = 0;
2895
2896 /* Query whether the function is enabled */
2897 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2898 wmt_params.flag = 4;
2899 wmt_params.dlen = sizeof(param);
2900 wmt_params.data = ¶m;
2901 wmt_params.status = &status;
2902
2903 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2904 if (err < 0) {
2905 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2906 return err;
2907 }
2908
2909 return status;
2910}
2911
2912static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2913{
2914 struct hci_dev *hdev = data->hdev;
2915 int pipe, err;
2916 void *buf;
2917
2918 buf = kzalloc(4, GFP_KERNEL);
2919 if (!buf)
2920 return -ENOMEM;
2921
2922 put_unaligned_le32(val, buf);
2923
2924 pipe = usb_sndctrlpipe(data->udev, 0);
2925 err = usb_control_msg(data->udev, pipe, 0x02,
2926 0x5E,
2927 reg >> 16, reg & 0xffff,
2928 buf, 4, USB_CTRL_SET_TIMEOUT);
2929 if (err < 0) {
2930 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2931 goto err_free_buf;
2932 }
2933
2934err_free_buf:
2935 kfree(buf);
2936
2937 return err;
2938}
2939
2940static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2941{
2942 struct hci_dev *hdev = data->hdev;
2943 int pipe, err;
2944 void *buf;
2945
2946 buf = kzalloc(4, GFP_KERNEL);
2947 if (!buf)
2948 return -ENOMEM;
2949
2950 pipe = usb_rcvctrlpipe(data->udev, 0);
2951 err = usb_control_msg(data->udev, pipe, 0x01,
2952 0xDE,
2953 reg >> 16, reg & 0xffff,
2954 buf, 4, USB_CTRL_SET_TIMEOUT);
2955 if (err < 0) {
2956 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2957 goto err_free_buf;
2958 }
2959
2960 *val = get_unaligned_le32(buf);
2961 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2962
2963err_free_buf:
2964 kfree(buf);
2965
2966 return err;
2967}
2968
2969static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2970{
2971 int pipe, err, size = sizeof(u32);
2972 void *buf;
2973
2974 buf = kzalloc(size, GFP_KERNEL);
2975 if (!buf)
2976 return -ENOMEM;
2977
2978 pipe = usb_rcvctrlpipe(data->udev, 0);
2979 err = usb_control_msg(data->udev, pipe, 0x63,
2980 USB_TYPE_VENDOR | USB_DIR_IN,
2981 reg >> 16, reg & 0xffff,
2982 buf, size, USB_CTRL_SET_TIMEOUT);
2983 if (err < 0)
2984 goto err_free_buf;
2985
2986 *val = get_unaligned_le32(buf);
2987
2988err_free_buf:
2989 kfree(buf);
2990
2991 return err;
2992}
2993
2994static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2995{
2996 return btusb_mtk_reg_read(data, reg, id);
2997}
2998
2999static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
3000{
3001 struct btusb_data *data = hci_get_drvdata(hdev);
3002 u32 val = 0;
3003
3004 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3005
3006 return val & MTK_BT_RST_DONE;
3007}
3008
3009static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3010{
3011 struct btusb_data *data = hci_get_drvdata(hdev);
3012 struct btmediatek_data *mediatek;
3013 u32 val;
3014 int err;
3015
3016 /* It's MediaTek specific bluetooth reset mechanism via USB */
3017 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3018 bt_dev_err(hdev, "last reset failed? Not resetting again");
3019 return -EBUSY;
3020 }
3021
3022 err = usb_autopm_get_interface(data->intf);
3023 if (err < 0)
3024 return err;
3025
3026 btusb_stop_traffic(data);
3027 usb_kill_anchored_urbs(&data->tx_anchor);
3028 mediatek = hci_get_priv(hdev);
3029
3030 if (mediatek->dev_id == 0x7925) {
3031 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3032 val |= (1 << 5);
3033 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3034 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3035 val &= 0xFFFF00FF;
3036 val |= (1 << 13);
3037 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3038 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3039 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3040 val |= (1 << 0);
3041 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3042 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3043 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3044 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3045 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3046 msleep(100);
3047 } else {
3048 /* It's Device EndPoint Reset Option Register */
3049 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3050 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3051 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3052
3053 /* Reset the bluetooth chip via USB interface. */
3054 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3055 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3056 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3057 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3058 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3059 /* MT7921 need to delay 20ms between toggle reset bit */
3060 msleep(20);
3061 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3062 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3063 }
3064
3065 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3066 val & MTK_BT_RST_DONE, 20000, 1000000);
3067 if (err < 0)
3068 bt_dev_err(hdev, "Reset timeout");
3069
3070 btusb_mtk_id_get(data, 0x70010200, &val);
3071 if (!val)
3072 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3073
3074 usb_queue_reset_device(data->intf);
3075
3076 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3077
3078 return err;
3079}
3080
3081static int btusb_mtk_setup(struct hci_dev *hdev)
3082{
3083 struct btusb_data *data = hci_get_drvdata(hdev);
3084 struct btmtk_hci_wmt_params wmt_params;
3085 ktime_t calltime, delta, rettime;
3086 struct btmtk_tci_sleep tci_sleep;
3087 unsigned long long duration;
3088 struct sk_buff *skb;
3089 const char *fwname;
3090 int err, status;
3091 u32 dev_id = 0;
3092 char fw_bin_name[64];
3093 u32 fw_version = 0, fw_flavor = 0;
3094 u8 param;
3095 struct btmediatek_data *mediatek;
3096
3097 calltime = ktime_get();
3098
3099 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3100 if (err < 0) {
3101 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3102 return err;
3103 }
3104
3105 if (!dev_id || dev_id != 0x7663) {
3106 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3107 if (err < 0) {
3108 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3109 return err;
3110 }
3111 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3112 if (err < 0) {
3113 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3114 return err;
3115 }
3116 err = btusb_mtk_id_get(data, 0x70010020, &fw_flavor);
3117 if (err < 0) {
3118 bt_dev_err(hdev, "Failed to get fw flavor (%d)", err);
3119 return err;
3120 }
3121 fw_flavor = (fw_flavor & 0x00000080) >> 7;
3122 }
3123
3124 mediatek = hci_get_priv(hdev);
3125 mediatek->dev_id = dev_id;
3126 mediatek->reset_sync = btusb_mtk_reset;
3127
3128 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3129 if (err < 0)
3130 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3131
3132 switch (dev_id) {
3133 case 0x7663:
3134 fwname = FIRMWARE_MT7663;
3135 break;
3136 case 0x7668:
3137 fwname = FIRMWARE_MT7668;
3138 break;
3139 case 0x7922:
3140 case 0x7961:
3141 case 0x7925:
3142 if (dev_id == 0x7925)
3143 snprintf(fw_bin_name, sizeof(fw_bin_name),
3144 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3145 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3146 else if (dev_id == 0x7961 && fw_flavor)
3147 snprintf(fw_bin_name, sizeof(fw_bin_name),
3148 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
3149 dev_id & 0xffff, (fw_version & 0xff) + 1);
3150 else
3151 snprintf(fw_bin_name, sizeof(fw_bin_name),
3152 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3153 dev_id & 0xffff, (fw_version & 0xff) + 1);
3154
3155 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3156 btusb_mtk_hci_wmt_sync);
3157 if (err < 0) {
3158 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3159 return err;
3160 }
3161
3162 /* It's Device EndPoint Reset Option Register */
3163 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3164
3165 /* Enable Bluetooth protocol */
3166 param = 1;
3167 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3168 wmt_params.flag = 0;
3169 wmt_params.dlen = sizeof(param);
3170 wmt_params.data = ¶m;
3171 wmt_params.status = NULL;
3172
3173 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3174 if (err < 0) {
3175 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3176 return err;
3177 }
3178
3179 hci_set_msft_opcode(hdev, 0xFD30);
3180 hci_set_aosp_capable(hdev);
3181 goto done;
3182 default:
3183 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3184 dev_id);
3185 return -ENODEV;
3186 }
3187
3188 /* Query whether the firmware is already download */
3189 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3190 wmt_params.flag = 1;
3191 wmt_params.dlen = 0;
3192 wmt_params.data = NULL;
3193 wmt_params.status = &status;
3194
3195 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3196 if (err < 0) {
3197 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3198 return err;
3199 }
3200
3201 if (status == BTMTK_WMT_PATCH_DONE) {
3202 bt_dev_info(hdev, "firmware already downloaded");
3203 goto ignore_setup_fw;
3204 }
3205
3206 /* Setup a firmware which the device definitely requires */
3207 err = btmtk_setup_firmware(hdev, fwname,
3208 btusb_mtk_hci_wmt_sync);
3209 if (err < 0)
3210 return err;
3211
3212ignore_setup_fw:
3213 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3214 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3215 2000, 5000000);
3216 /* -ETIMEDOUT happens */
3217 if (err < 0)
3218 return err;
3219
3220 /* The other errors happen in btusb_mtk_func_query */
3221 if (status < 0)
3222 return status;
3223
3224 if (status == BTMTK_WMT_ON_DONE) {
3225 bt_dev_info(hdev, "function already on");
3226 goto ignore_func_on;
3227 }
3228
3229 /* Enable Bluetooth protocol */
3230 param = 1;
3231 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3232 wmt_params.flag = 0;
3233 wmt_params.dlen = sizeof(param);
3234 wmt_params.data = ¶m;
3235 wmt_params.status = NULL;
3236
3237 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3238 if (err < 0) {
3239 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3240 return err;
3241 }
3242
3243ignore_func_on:
3244 /* Apply the low power environment setup */
3245 tci_sleep.mode = 0x5;
3246 tci_sleep.duration = cpu_to_le16(0x640);
3247 tci_sleep.host_duration = cpu_to_le16(0x640);
3248 tci_sleep.host_wakeup_pin = 0;
3249 tci_sleep.time_compensation = 0;
3250
3251 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3252 HCI_INIT_TIMEOUT);
3253 if (IS_ERR(skb)) {
3254 err = PTR_ERR(skb);
3255 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3256 return err;
3257 }
3258 kfree_skb(skb);
3259
3260done:
3261 rettime = ktime_get();
3262 delta = ktime_sub(rettime, calltime);
3263 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3264
3265 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3266
3267 return 0;
3268}
3269
3270static int btusb_mtk_shutdown(struct hci_dev *hdev)
3271{
3272 struct btmtk_hci_wmt_params wmt_params;
3273 u8 param = 0;
3274 int err;
3275
3276 /* Disable the device */
3277 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3278 wmt_params.flag = 0;
3279 wmt_params.dlen = sizeof(param);
3280 wmt_params.data = ¶m;
3281 wmt_params.status = NULL;
3282
3283 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3284 if (err < 0) {
3285 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3286 return err;
3287 }
3288
3289 return 0;
3290}
3291
3292static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3293{
3294 struct btusb_data *data = hci_get_drvdata(hdev);
3295 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3296
3297 switch (handle) {
3298 case 0xfc6f: /* Firmware dump from device */
3299 /* When the firmware hangs, the device can no longer
3300 * suspend and thus disable auto-suspend.
3301 */
3302 usb_disable_autosuspend(data->udev);
3303
3304 /* We need to forward the diagnostic packet to userspace daemon
3305 * for backward compatibility, so we have to clone the packet
3306 * extraly for the in-kernel coredump support.
3307 */
3308 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3309 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3310
3311 if (skb_cd)
3312 btmtk_process_coredump(hdev, skb_cd);
3313 }
3314
3315 fallthrough;
3316 case 0x05ff: /* Firmware debug logging 1 */
3317 case 0x05fe: /* Firmware debug logging 2 */
3318 return hci_recv_diag(hdev, skb);
3319 }
3320
3321 return hci_recv_frame(hdev, skb);
3322}
3323
3324#ifdef CONFIG_PM
3325/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3326static int marvell_config_oob_wake(struct hci_dev *hdev)
3327{
3328 struct sk_buff *skb;
3329 struct btusb_data *data = hci_get_drvdata(hdev);
3330 struct device *dev = &data->udev->dev;
3331 u16 pin, gap, opcode;
3332 int ret;
3333 u8 cmd[5];
3334
3335 /* Move on if no wakeup pin specified */
3336 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3337 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3338 return 0;
3339
3340 /* Vendor specific command to configure a GPIO as wake-up pin */
3341 opcode = hci_opcode_pack(0x3F, 0x59);
3342 cmd[0] = opcode & 0xFF;
3343 cmd[1] = opcode >> 8;
3344 cmd[2] = 2; /* length of parameters that follow */
3345 cmd[3] = pin;
3346 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3347
3348 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3349 if (!skb) {
3350 bt_dev_err(hdev, "%s: No memory", __func__);
3351 return -ENOMEM;
3352 }
3353
3354 skb_put_data(skb, cmd, sizeof(cmd));
3355 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3356
3357 ret = btusb_send_frame(hdev, skb);
3358 if (ret) {
3359 bt_dev_err(hdev, "%s: configuration failed", __func__);
3360 kfree_skb(skb);
3361 return ret;
3362 }
3363
3364 return 0;
3365}
3366#endif
3367
3368static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3369 const bdaddr_t *bdaddr)
3370{
3371 struct sk_buff *skb;
3372 u8 buf[8];
3373 long ret;
3374
3375 buf[0] = 0xfe;
3376 buf[1] = sizeof(bdaddr_t);
3377 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3378
3379 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3380 if (IS_ERR(skb)) {
3381 ret = PTR_ERR(skb);
3382 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3383 ret);
3384 return ret;
3385 }
3386 kfree_skb(skb);
3387
3388 return 0;
3389}
3390
3391static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3392 const bdaddr_t *bdaddr)
3393{
3394 struct sk_buff *skb;
3395 u8 buf[10];
3396 long ret;
3397
3398 buf[0] = 0x01;
3399 buf[1] = 0x01;
3400 buf[2] = 0x00;
3401 buf[3] = sizeof(bdaddr_t);
3402 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3403
3404 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3405 if (IS_ERR(skb)) {
3406 ret = PTR_ERR(skb);
3407 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3408 return ret;
3409 }
3410 kfree_skb(skb);
3411
3412 return 0;
3413}
3414
3415static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3416 const bdaddr_t *bdaddr)
3417{
3418 struct sk_buff *skb;
3419 u8 buf[6];
3420 long ret;
3421
3422 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3423
3424 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3425 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3426 if (IS_ERR(skb)) {
3427 ret = PTR_ERR(skb);
3428 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3429 return ret;
3430 }
3431 kfree_skb(skb);
3432
3433 return 0;
3434}
3435
3436#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3437#define QCA_MEMDUMP_SIZE_MAX 0x100000
3438#define QCA_MEMDUMP_VSE_CLASS 0x01
3439#define QCA_MEMDUMP_MSG_TYPE 0x08
3440#define QCA_MEMDUMP_PKT_SIZE 248
3441#define QCA_LAST_SEQUENCE_NUM 0xffff
3442
3443struct qca_dump_hdr {
3444 u8 vse_class;
3445 u8 msg_type;
3446 __le16 seqno;
3447 u8 reserved;
3448 union {
3449 u8 data[0];
3450 struct {
3451 __le32 ram_dump_size;
3452 u8 data0[0];
3453 } __packed;
3454 };
3455} __packed;
3456
3457
3458static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3459{
3460 char buf[128];
3461 struct btusb_data *btdata = hci_get_drvdata(hdev);
3462
3463 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3464 btdata->qca_dump.controller_id);
3465 skb_put_data(skb, buf, strlen(buf));
3466
3467 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3468 btdata->qca_dump.fw_version);
3469 skb_put_data(skb, buf, strlen(buf));
3470
3471 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3472 btusb_driver.name);
3473 skb_put_data(skb, buf, strlen(buf));
3474
3475 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3476 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3477 skb_put_data(skb, buf, strlen(buf));
3478
3479 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3480 hdev->lmp_subver);
3481 skb_put_data(skb, buf, strlen(buf));
3482}
3483
3484static void btusb_coredump_qca(struct hci_dev *hdev)
3485{
3486 int err;
3487 static const u8 param[] = { 0x26 };
3488
3489 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3490 if (err < 0)
3491 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3492}
3493
3494/*
3495 * ==0: not a dump pkt.
3496 * < 0: fails to handle a dump pkt
3497 * > 0: otherwise.
3498 */
3499static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3500{
3501 int ret = 1;
3502 u8 pkt_type;
3503 u8 *sk_ptr;
3504 unsigned int sk_len;
3505 u16 seqno;
3506 u32 dump_size;
3507
3508 struct hci_event_hdr *event_hdr;
3509 struct hci_acl_hdr *acl_hdr;
3510 struct qca_dump_hdr *dump_hdr;
3511 struct btusb_data *btdata = hci_get_drvdata(hdev);
3512 struct usb_device *udev = btdata->udev;
3513
3514 pkt_type = hci_skb_pkt_type(skb);
3515 sk_ptr = skb->data;
3516 sk_len = skb->len;
3517
3518 if (pkt_type == HCI_ACLDATA_PKT) {
3519 acl_hdr = hci_acl_hdr(skb);
3520 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3521 return 0;
3522 sk_ptr += HCI_ACL_HDR_SIZE;
3523 sk_len -= HCI_ACL_HDR_SIZE;
3524 event_hdr = (struct hci_event_hdr *)sk_ptr;
3525 } else {
3526 event_hdr = hci_event_hdr(skb);
3527 }
3528
3529 if ((event_hdr->evt != HCI_VENDOR_PKT)
3530 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3531 return 0;
3532
3533 sk_ptr += HCI_EVENT_HDR_SIZE;
3534 sk_len -= HCI_EVENT_HDR_SIZE;
3535
3536 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3537 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3538 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3539 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3540 return 0;
3541
3542 /*it is dump pkt now*/
3543 seqno = le16_to_cpu(dump_hdr->seqno);
3544 if (seqno == 0) {
3545 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3546 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3547 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3548 ret = -EILSEQ;
3549 bt_dev_err(hdev, "Invalid memdump size(%u)",
3550 dump_size);
3551 goto out;
3552 }
3553
3554 ret = hci_devcd_init(hdev, dump_size);
3555 if (ret < 0) {
3556 bt_dev_err(hdev, "memdump init error(%d)", ret);
3557 goto out;
3558 }
3559
3560 btdata->qca_dump.ram_dump_size = dump_size;
3561 btdata->qca_dump.ram_dump_seqno = 0;
3562 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3563 sk_len -= offsetof(struct qca_dump_hdr, data0);
3564
3565 usb_disable_autosuspend(udev);
3566 bt_dev_info(hdev, "%s memdump size(%u)\n",
3567 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3568 dump_size);
3569 } else {
3570 sk_ptr += offsetof(struct qca_dump_hdr, data);
3571 sk_len -= offsetof(struct qca_dump_hdr, data);
3572 }
3573
3574 if (!btdata->qca_dump.ram_dump_size) {
3575 ret = -EINVAL;
3576 bt_dev_err(hdev, "memdump is not active");
3577 goto out;
3578 }
3579
3580 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3581 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3582 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3583 bt_dev_err(hdev,
3584 "expected memdump seqno(%u) is not received(%u)\n",
3585 btdata->qca_dump.ram_dump_seqno, seqno);
3586 btdata->qca_dump.ram_dump_seqno = seqno;
3587 kfree_skb(skb);
3588 return ret;
3589 }
3590
3591 skb_pull(skb, skb->len - sk_len);
3592 hci_devcd_append(hdev, skb);
3593 btdata->qca_dump.ram_dump_seqno++;
3594 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3595 bt_dev_info(hdev,
3596 "memdump done: pkts(%u), total(%u)\n",
3597 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3598
3599 hci_devcd_complete(hdev);
3600 goto out;
3601 }
3602 return ret;
3603
3604out:
3605 if (btdata->qca_dump.ram_dump_size)
3606 usb_enable_autosuspend(udev);
3607 btdata->qca_dump.ram_dump_size = 0;
3608 btdata->qca_dump.ram_dump_seqno = 0;
3609 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3610
3611 if (ret < 0)
3612 kfree_skb(skb);
3613 return ret;
3614}
3615
3616static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3617{
3618 if (handle_dump_pkt_qca(hdev, skb))
3619 return 0;
3620 return hci_recv_frame(hdev, skb);
3621}
3622
3623static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3624{
3625 if (handle_dump_pkt_qca(hdev, skb))
3626 return 0;
3627 return hci_recv_frame(hdev, skb);
3628}
3629
3630
3631#define QCA_DFU_PACKET_LEN 4096
3632
3633#define QCA_GET_TARGET_VERSION 0x09
3634#define QCA_CHECK_STATUS 0x05
3635#define QCA_DFU_DOWNLOAD 0x01
3636
3637#define QCA_SYSCFG_UPDATED 0x40
3638#define QCA_PATCH_UPDATED 0x80
3639#define QCA_DFU_TIMEOUT 3000
3640#define QCA_FLAG_MULTI_NVM 0x80
3641#define QCA_BT_RESET_WAIT_MS 100
3642
3643#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3644#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3645
3646struct qca_version {
3647 __le32 rom_version;
3648 __le32 patch_version;
3649 __le32 ram_version;
3650 __u8 chip_id;
3651 __u8 platform_id;
3652 __le16 flag;
3653 __u8 reserved[4];
3654} __packed;
3655
3656struct qca_rampatch_version {
3657 __le16 rom_version_high;
3658 __le16 rom_version_low;
3659 __le16 patch_version;
3660} __packed;
3661
3662struct qca_device_info {
3663 u32 rom_version;
3664 u8 rampatch_hdr; /* length of header in rampatch */
3665 u8 nvm_hdr; /* length of header in NVM */
3666 u8 ver_offset; /* offset of version structure in rampatch */
3667};
3668
3669static const struct qca_device_info qca_devices_table[] = {
3670 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3671 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3672 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3673 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3674 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3675 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3676 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3677 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3678 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3679 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3680};
3681
3682static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3683 void *data, u16 size)
3684{
3685 int pipe, err;
3686 u8 *buf;
3687
3688 buf = kmalloc(size, GFP_KERNEL);
3689 if (!buf)
3690 return -ENOMEM;
3691
3692 /* Found some of USB hosts have IOT issues with ours so that we should
3693 * not wait until HCI layer is ready.
3694 */
3695 pipe = usb_rcvctrlpipe(udev, 0);
3696 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3697 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3698 if (err < 0) {
3699 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3700 goto done;
3701 }
3702
3703 memcpy(data, buf, size);
3704
3705done:
3706 kfree(buf);
3707
3708 return err;
3709}
3710
3711static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3712 const struct firmware *firmware,
3713 size_t hdr_size)
3714{
3715 struct btusb_data *btdata = hci_get_drvdata(hdev);
3716 struct usb_device *udev = btdata->udev;
3717 size_t count, size, sent = 0;
3718 int pipe, len, err;
3719 u8 *buf;
3720
3721 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3722 if (!buf)
3723 return -ENOMEM;
3724
3725 count = firmware->size;
3726
3727 size = min_t(size_t, count, hdr_size);
3728 memcpy(buf, firmware->data, size);
3729
3730 /* USB patches should go down to controller through USB path
3731 * because binary format fits to go down through USB channel.
3732 * USB control path is for patching headers and USB bulk is for
3733 * patch body.
3734 */
3735 pipe = usb_sndctrlpipe(udev, 0);
3736 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3737 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3738 if (err < 0) {
3739 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3740 goto done;
3741 }
3742
3743 sent += size;
3744 count -= size;
3745
3746 /* ep2 need time to switch from function acl to function dfu,
3747 * so we add 20ms delay here.
3748 */
3749 msleep(20);
3750
3751 while (count) {
3752 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3753
3754 memcpy(buf, firmware->data + sent, size);
3755
3756 pipe = usb_sndbulkpipe(udev, 0x02);
3757 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3758 QCA_DFU_TIMEOUT);
3759 if (err < 0) {
3760 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3761 sent, firmware->size, err);
3762 break;
3763 }
3764
3765 if (size != len) {
3766 bt_dev_err(hdev, "Failed to get bulk buffer");
3767 err = -EILSEQ;
3768 break;
3769 }
3770
3771 sent += size;
3772 count -= size;
3773 }
3774
3775done:
3776 kfree(buf);
3777 return err;
3778}
3779
3780static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3781 struct qca_version *ver,
3782 const struct qca_device_info *info)
3783{
3784 struct qca_rampatch_version *rver;
3785 const struct firmware *fw;
3786 u32 ver_rom, ver_patch, rver_rom;
3787 u16 rver_rom_low, rver_rom_high, rver_patch;
3788 char fwname[64];
3789 int err;
3790
3791 ver_rom = le32_to_cpu(ver->rom_version);
3792 ver_patch = le32_to_cpu(ver->patch_version);
3793
3794 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3795
3796 err = request_firmware(&fw, fwname, &hdev->dev);
3797 if (err) {
3798 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3799 fwname, err);
3800 return err;
3801 }
3802
3803 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3804
3805 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3806 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3807 rver_patch = le16_to_cpu(rver->patch_version);
3808
3809 if (ver_rom & ~0xffffU) {
3810 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3811 rver_rom = rver_rom_high << 16 | rver_rom_low;
3812 } else {
3813 rver_rom = rver_rom_low;
3814 }
3815
3816 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3817 "firmware rome 0x%x build 0x%x",
3818 rver_rom, rver_patch, ver_rom, ver_patch);
3819
3820 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3821 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3822 err = -EINVAL;
3823 goto done;
3824 }
3825
3826 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3827
3828done:
3829 release_firmware(fw);
3830
3831 return err;
3832}
3833
3834static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3835 const struct qca_version *ver)
3836{
3837 u32 rom_version = le32_to_cpu(ver->rom_version);
3838 u16 flag = le16_to_cpu(ver->flag);
3839
3840 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3841 /* The board_id should be split into two bytes
3842 * The 1st byte is chip ID, and the 2nd byte is platform ID
3843 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3844 * we have several platforms, and platform IDs are continuously added
3845 * Platform ID:
3846 * 0x00 is for Mobile
3847 * 0x01 is for X86
3848 * 0x02 is for Automotive
3849 * 0x03 is for Consumer electronic
3850 */
3851 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3852 const char *variant;
3853
3854 switch (le32_to_cpu(ver->ram_version)) {
3855 case WCN6855_2_0_RAM_VERSION_GF:
3856 case WCN6855_2_1_RAM_VERSION_GF:
3857 variant = "_gf";
3858 break;
3859 default:
3860 variant = "";
3861 break;
3862 }
3863
3864 if (board_id == 0) {
3865 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3866 rom_version, variant);
3867 } else {
3868 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3869 rom_version, variant, board_id);
3870 }
3871 } else {
3872 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3873 rom_version);
3874 }
3875
3876}
3877
3878static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3879 struct qca_version *ver,
3880 const struct qca_device_info *info)
3881{
3882 const struct firmware *fw;
3883 char fwname[64];
3884 int err;
3885
3886 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3887
3888 err = request_firmware(&fw, fwname, &hdev->dev);
3889 if (err) {
3890 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3891 fwname, err);
3892 return err;
3893 }
3894
3895 bt_dev_info(hdev, "using NVM file: %s", fwname);
3896
3897 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3898
3899 release_firmware(fw);
3900
3901 return err;
3902}
3903
3904/* identify the ROM version and check whether patches are needed */
3905static bool btusb_qca_need_patch(struct usb_device *udev)
3906{
3907 struct qca_version ver;
3908
3909 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3910 sizeof(ver)) < 0)
3911 return false;
3912 /* only low ROM versions need patches */
3913 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3914}
3915
3916static int btusb_setup_qca(struct hci_dev *hdev)
3917{
3918 struct btusb_data *btdata = hci_get_drvdata(hdev);
3919 struct usb_device *udev = btdata->udev;
3920 const struct qca_device_info *info = NULL;
3921 struct qca_version ver;
3922 u32 ver_rom;
3923 u8 status;
3924 int i, err;
3925
3926 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3927 sizeof(ver));
3928 if (err < 0)
3929 return err;
3930
3931 ver_rom = le32_to_cpu(ver.rom_version);
3932
3933 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3934 if (ver_rom == qca_devices_table[i].rom_version)
3935 info = &qca_devices_table[i];
3936 }
3937 if (!info) {
3938 /* If the rom_version is not matched in the qca_devices_table
3939 * and the high ROM version is not zero, we assume this chip no
3940 * need to load the rampatch and nvm.
3941 */
3942 if (ver_rom & ~0xffffU)
3943 return 0;
3944
3945 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3946 return -ENODEV;
3947 }
3948
3949 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3950 sizeof(status));
3951 if (err < 0)
3952 return err;
3953
3954 if (!(status & QCA_PATCH_UPDATED)) {
3955 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3956 if (err < 0)
3957 return err;
3958 }
3959
3960 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3961 sizeof(ver));
3962 if (err < 0)
3963 return err;
3964
3965 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3966 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3967
3968 if (!(status & QCA_SYSCFG_UPDATED)) {
3969 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3970 if (err < 0)
3971 return err;
3972
3973 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3974 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3975 * cause potential enable failure.
3976 */
3977 if (info->rom_version >= 0x00130201)
3978 msleep(QCA_BT_RESET_WAIT_MS);
3979 }
3980
3981 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3982 * work with the likes of HSP/HFP mSBC.
3983 */
3984 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3985
3986 return 0;
3987}
3988
3989static inline int __set_diag_interface(struct hci_dev *hdev)
3990{
3991 struct btusb_data *data = hci_get_drvdata(hdev);
3992 struct usb_interface *intf = data->diag;
3993 int i;
3994
3995 if (!data->diag)
3996 return -ENODEV;
3997
3998 data->diag_tx_ep = NULL;
3999 data->diag_rx_ep = NULL;
4000
4001 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4002 struct usb_endpoint_descriptor *ep_desc;
4003
4004 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4005
4006 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4007 data->diag_tx_ep = ep_desc;
4008 continue;
4009 }
4010
4011 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4012 data->diag_rx_ep = ep_desc;
4013 continue;
4014 }
4015 }
4016
4017 if (!data->diag_tx_ep || !data->diag_rx_ep) {
4018 bt_dev_err(hdev, "invalid diagnostic descriptors");
4019 return -ENODEV;
4020 }
4021
4022 return 0;
4023}
4024
4025static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4026{
4027 struct btusb_data *data = hci_get_drvdata(hdev);
4028 struct sk_buff *skb;
4029 struct urb *urb;
4030 unsigned int pipe;
4031
4032 if (!data->diag_tx_ep)
4033 return ERR_PTR(-ENODEV);
4034
4035 urb = usb_alloc_urb(0, GFP_KERNEL);
4036 if (!urb)
4037 return ERR_PTR(-ENOMEM);
4038
4039 skb = bt_skb_alloc(2, GFP_KERNEL);
4040 if (!skb) {
4041 usb_free_urb(urb);
4042 return ERR_PTR(-ENOMEM);
4043 }
4044
4045 skb_put_u8(skb, 0xf0);
4046 skb_put_u8(skb, enable);
4047
4048 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4049
4050 usb_fill_bulk_urb(urb, data->udev, pipe,
4051 skb->data, skb->len, btusb_tx_complete, skb);
4052
4053 skb->dev = (void *)hdev;
4054
4055 return urb;
4056}
4057
4058static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4059{
4060 struct btusb_data *data = hci_get_drvdata(hdev);
4061 struct urb *urb;
4062
4063 if (!data->diag)
4064 return -ENODEV;
4065
4066 if (!test_bit(HCI_RUNNING, &hdev->flags))
4067 return -ENETDOWN;
4068
4069 urb = alloc_diag_urb(hdev, enable);
4070 if (IS_ERR(urb))
4071 return PTR_ERR(urb);
4072
4073 return submit_or_queue_tx_urb(hdev, urb);
4074}
4075
4076#ifdef CONFIG_PM
4077static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4078{
4079 struct btusb_data *data = priv;
4080
4081 pm_wakeup_event(&data->udev->dev, 0);
4082 pm_system_wakeup();
4083
4084 /* Disable only if not already disabled (keep it balanced) */
4085 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4086 disable_irq_nosync(irq);
4087 disable_irq_wake(irq);
4088 }
4089 return IRQ_HANDLED;
4090}
4091
4092static const struct of_device_id btusb_match_table[] = {
4093 { .compatible = "usb1286,204e" },
4094 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4095 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4096 { }
4097};
4098MODULE_DEVICE_TABLE(of, btusb_match_table);
4099
4100/* Use an oob wakeup pin? */
4101static int btusb_config_oob_wake(struct hci_dev *hdev)
4102{
4103 struct btusb_data *data = hci_get_drvdata(hdev);
4104 struct device *dev = &data->udev->dev;
4105 int irq, ret;
4106
4107 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4108
4109 if (!of_match_device(btusb_match_table, dev))
4110 return 0;
4111
4112 /* Move on if no IRQ specified */
4113 irq = of_irq_get_byname(dev->of_node, "wakeup");
4114 if (irq <= 0) {
4115 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4116 return 0;
4117 }
4118
4119 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4120 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4121 0, "OOB Wake-on-BT", data);
4122 if (ret) {
4123 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4124 return ret;
4125 }
4126
4127 ret = device_init_wakeup(dev, true);
4128 if (ret) {
4129 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4130 return ret;
4131 }
4132
4133 data->oob_wake_irq = irq;
4134 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4135 return 0;
4136}
4137#endif
4138
4139static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4140{
4141 if (dmi_check_system(btusb_needs_reset_resume_table))
4142 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4143}
4144
4145static bool btusb_wakeup(struct hci_dev *hdev)
4146{
4147 struct btusb_data *data = hci_get_drvdata(hdev);
4148
4149 return device_may_wakeup(&data->udev->dev);
4150}
4151
4152static int btusb_shutdown_qca(struct hci_dev *hdev)
4153{
4154 struct sk_buff *skb;
4155
4156 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4157 if (IS_ERR(skb)) {
4158 bt_dev_err(hdev, "HCI reset during shutdown failed");
4159 return PTR_ERR(skb);
4160 }
4161 kfree_skb(skb);
4162
4163 return 0;
4164}
4165
4166static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4167 size_t count, loff_t *ppos)
4168{
4169 struct btusb_data *data = file->private_data;
4170 char buf[3];
4171
4172 buf[0] = data->poll_sync ? 'Y' : 'N';
4173 buf[1] = '\n';
4174 buf[2] = '\0';
4175 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4176}
4177
4178static ssize_t force_poll_sync_write(struct file *file,
4179 const char __user *user_buf,
4180 size_t count, loff_t *ppos)
4181{
4182 struct btusb_data *data = file->private_data;
4183 bool enable;
4184 int err;
4185
4186 err = kstrtobool_from_user(user_buf, count, &enable);
4187 if (err)
4188 return err;
4189
4190 /* Only allow changes while the adapter is down */
4191 if (test_bit(HCI_UP, &data->hdev->flags))
4192 return -EPERM;
4193
4194 if (data->poll_sync == enable)
4195 return -EALREADY;
4196
4197 data->poll_sync = enable;
4198
4199 return count;
4200}
4201
4202static const struct file_operations force_poll_sync_fops = {
4203 .open = simple_open,
4204 .read = force_poll_sync_read,
4205 .write = force_poll_sync_write,
4206 .llseek = default_llseek,
4207};
4208
4209static int btusb_probe(struct usb_interface *intf,
4210 const struct usb_device_id *id)
4211{
4212 struct usb_endpoint_descriptor *ep_desc;
4213 struct gpio_desc *reset_gpio;
4214 struct btusb_data *data;
4215 struct hci_dev *hdev;
4216 unsigned ifnum_base;
4217 int i, err, priv_size;
4218
4219 BT_DBG("intf %p id %p", intf, id);
4220
4221 if ((id->driver_info & BTUSB_IFNUM_2) &&
4222 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4223 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4224 return -ENODEV;
4225
4226 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4227
4228 if (!id->driver_info) {
4229 const struct usb_device_id *match;
4230
4231 match = usb_match_id(intf, quirks_table);
4232 if (match)
4233 id = match;
4234 }
4235
4236 if (id->driver_info == BTUSB_IGNORE)
4237 return -ENODEV;
4238
4239 if (id->driver_info & BTUSB_ATH3012) {
4240 struct usb_device *udev = interface_to_usbdev(intf);
4241
4242 /* Old firmware would otherwise let ath3k driver load
4243 * patch and sysconfig files
4244 */
4245 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4246 !btusb_qca_need_patch(udev))
4247 return -ENODEV;
4248 }
4249
4250 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4251 if (!data)
4252 return -ENOMEM;
4253
4254 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4255 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4256
4257 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4258 data->intr_ep = ep_desc;
4259 continue;
4260 }
4261
4262 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4263 data->bulk_tx_ep = ep_desc;
4264 continue;
4265 }
4266
4267 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4268 data->bulk_rx_ep = ep_desc;
4269 continue;
4270 }
4271 }
4272
4273 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4274 return -ENODEV;
4275
4276 if (id->driver_info & BTUSB_AMP) {
4277 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4278 data->cmdreq = 0x2b;
4279 } else {
4280 data->cmdreq_type = USB_TYPE_CLASS;
4281 data->cmdreq = 0x00;
4282 }
4283
4284 data->udev = interface_to_usbdev(intf);
4285 data->intf = intf;
4286
4287 INIT_WORK(&data->work, btusb_work);
4288 INIT_WORK(&data->waker, btusb_waker);
4289 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4290
4291 skb_queue_head_init(&data->acl_q);
4292
4293 init_usb_anchor(&data->deferred);
4294 init_usb_anchor(&data->tx_anchor);
4295 spin_lock_init(&data->txlock);
4296
4297 init_usb_anchor(&data->intr_anchor);
4298 init_usb_anchor(&data->bulk_anchor);
4299 init_usb_anchor(&data->isoc_anchor);
4300 init_usb_anchor(&data->diag_anchor);
4301 init_usb_anchor(&data->ctrl_anchor);
4302 spin_lock_init(&data->rxlock);
4303
4304 priv_size = 0;
4305
4306 data->recv_event = hci_recv_frame;
4307 data->recv_bulk = btusb_recv_bulk;
4308
4309 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4310 /* Allocate extra space for Intel device */
4311 priv_size += sizeof(struct btintel_data);
4312
4313 /* Override the rx handlers */
4314 data->recv_event = btintel_recv_event;
4315 data->recv_bulk = btusb_recv_bulk_intel;
4316 } else if (id->driver_info & BTUSB_REALTEK) {
4317 /* Allocate extra space for Realtek device */
4318 priv_size += sizeof(struct btrealtek_data);
4319
4320 data->recv_event = btusb_recv_event_realtek;
4321 } else if (id->driver_info & BTUSB_MEDIATEK) {
4322 /* Allocate extra space for Mediatek device */
4323 priv_size += sizeof(struct btmediatek_data);
4324 }
4325
4326 data->recv_acl = hci_recv_frame;
4327
4328 hdev = hci_alloc_dev_priv(priv_size);
4329 if (!hdev)
4330 return -ENOMEM;
4331
4332 hdev->bus = HCI_USB;
4333 hci_set_drvdata(hdev, data);
4334
4335 data->hdev = hdev;
4336
4337 SET_HCIDEV_DEV(hdev, &intf->dev);
4338
4339 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4340 GPIOD_OUT_LOW);
4341 if (IS_ERR(reset_gpio)) {
4342 err = PTR_ERR(reset_gpio);
4343 goto out_free_dev;
4344 } else if (reset_gpio) {
4345 data->reset_gpio = reset_gpio;
4346 }
4347
4348 hdev->open = btusb_open;
4349 hdev->close = btusb_close;
4350 hdev->flush = btusb_flush;
4351 hdev->send = btusb_send_frame;
4352 hdev->notify = btusb_notify;
4353 hdev->wakeup = btusb_wakeup;
4354
4355#ifdef CONFIG_PM
4356 err = btusb_config_oob_wake(hdev);
4357 if (err)
4358 goto out_free_dev;
4359
4360 /* Marvell devices may need a specific chip configuration */
4361 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4362 err = marvell_config_oob_wake(hdev);
4363 if (err)
4364 goto out_free_dev;
4365 }
4366#endif
4367 if (id->driver_info & BTUSB_CW6622)
4368 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4369
4370 if (id->driver_info & BTUSB_BCM2045)
4371 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4372
4373 if (id->driver_info & BTUSB_BCM92035)
4374 hdev->setup = btusb_setup_bcm92035;
4375
4376 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4377 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4378 hdev->manufacturer = 15;
4379 hdev->setup = btbcm_setup_patchram;
4380 hdev->set_diag = btusb_bcm_set_diag;
4381 hdev->set_bdaddr = btbcm_set_bdaddr;
4382
4383 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4384 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4385 }
4386
4387 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4388 (id->driver_info & BTUSB_BCM_APPLE)) {
4389 hdev->manufacturer = 15;
4390 hdev->setup = btbcm_setup_apple;
4391 hdev->set_diag = btusb_bcm_set_diag;
4392
4393 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4394 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4395 }
4396
4397 /* Combined Intel Device setup to support multiple setup routine */
4398 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4399 err = btintel_configure_setup(hdev, btusb_driver.name);
4400 if (err)
4401 goto out_free_dev;
4402
4403 /* Transport specific configuration */
4404 hdev->send = btusb_send_frame_intel;
4405 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4406
4407 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4408 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4409
4410 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4411 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4412
4413 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4414 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4415 }
4416
4417 if (id->driver_info & BTUSB_MARVELL)
4418 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4419
4420 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4421 (id->driver_info & BTUSB_MEDIATEK)) {
4422 hdev->setup = btusb_mtk_setup;
4423 hdev->shutdown = btusb_mtk_shutdown;
4424 hdev->manufacturer = 70;
4425 hdev->cmd_timeout = btmtk_reset_sync;
4426 hdev->set_bdaddr = btmtk_set_bdaddr;
4427 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4428 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4429 data->recv_acl = btusb_recv_acl_mtk;
4430 }
4431
4432 if (id->driver_info & BTUSB_SWAVE) {
4433 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4434 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4435 }
4436
4437 if (id->driver_info & BTUSB_INTEL_BOOT) {
4438 hdev->manufacturer = 2;
4439 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4440 }
4441
4442 if (id->driver_info & BTUSB_ATH3012) {
4443 data->setup_on_usb = btusb_setup_qca;
4444 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4445 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4446 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4447 }
4448
4449 if (id->driver_info & BTUSB_QCA_ROME) {
4450 data->setup_on_usb = btusb_setup_qca;
4451 hdev->shutdown = btusb_shutdown_qca;
4452 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4453 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4454 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4455 btusb_check_needs_reset_resume(intf);
4456 }
4457
4458 if (id->driver_info & BTUSB_QCA_WCN6855) {
4459 data->qca_dump.id_vendor = id->idVendor;
4460 data->qca_dump.id_product = id->idProduct;
4461 data->recv_event = btusb_recv_evt_qca;
4462 data->recv_acl = btusb_recv_acl_qca;
4463 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4464 data->setup_on_usb = btusb_setup_qca;
4465 hdev->shutdown = btusb_shutdown_qca;
4466 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4467 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4468 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4469 hci_set_msft_opcode(hdev, 0xFD70);
4470 }
4471
4472 if (id->driver_info & BTUSB_AMP) {
4473 /* AMP controllers do not support SCO packets */
4474 data->isoc = NULL;
4475 } else {
4476 /* Interface orders are hardcoded in the specification */
4477 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4478 data->isoc_ifnum = ifnum_base + 1;
4479 }
4480
4481 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4482 (id->driver_info & BTUSB_REALTEK)) {
4483 btrtl_set_driver_name(hdev, btusb_driver.name);
4484 hdev->setup = btusb_setup_realtek;
4485 hdev->shutdown = btrtl_shutdown_realtek;
4486 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4487 hdev->hw_error = btusb_rtl_hw_error;
4488
4489 /* Realtek devices need to set remote wakeup on auto-suspend */
4490 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4491 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4492 }
4493
4494 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4495 /* Support is advertised, but not implemented */
4496 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4497 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4498 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4499 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4500 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
4501 }
4502
4503 if (!reset)
4504 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4505
4506 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4507 if (!disable_scofix)
4508 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4509 }
4510
4511 if (id->driver_info & BTUSB_BROKEN_ISOC)
4512 data->isoc = NULL;
4513
4514 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4515 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4516
4517 if (id->driver_info & BTUSB_VALID_LE_STATES)
4518 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4519
4520 if (id->driver_info & BTUSB_DIGIANSWER) {
4521 data->cmdreq_type = USB_TYPE_VENDOR;
4522 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4523 }
4524
4525 if (id->driver_info & BTUSB_CSR) {
4526 struct usb_device *udev = data->udev;
4527 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4528
4529 /* Old firmware would otherwise execute USB reset */
4530 if (bcdDevice < 0x117)
4531 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4532
4533 /* This must be set first in case we disable it for fakes */
4534 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4535
4536 /* Fake CSR devices with broken commands */
4537 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4538 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4539 hdev->setup = btusb_setup_csr;
4540 }
4541
4542 if (id->driver_info & BTUSB_SNIFFER) {
4543 struct usb_device *udev = data->udev;
4544
4545 /* New sniffer firmware has crippled HCI interface */
4546 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4547 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4548 }
4549
4550 if (id->driver_info & BTUSB_INTEL_BOOT) {
4551 /* A bug in the bootloader causes that interrupt interface is
4552 * only enabled after receiving SetInterface(0, AltSetting=0).
4553 */
4554 err = usb_set_interface(data->udev, 0, 0);
4555 if (err < 0) {
4556 BT_ERR("failed to set interface 0, alt 0 %d", err);
4557 goto out_free_dev;
4558 }
4559 }
4560
4561 if (data->isoc) {
4562 err = usb_driver_claim_interface(&btusb_driver,
4563 data->isoc, data);
4564 if (err < 0)
4565 goto out_free_dev;
4566 }
4567
4568 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4569 if (!usb_driver_claim_interface(&btusb_driver,
4570 data->diag, data))
4571 __set_diag_interface(hdev);
4572 else
4573 data->diag = NULL;
4574 }
4575
4576 if (enable_autosuspend)
4577 usb_enable_autosuspend(data->udev);
4578
4579 data->poll_sync = enable_poll_sync;
4580
4581 err = hci_register_dev(hdev);
4582 if (err < 0)
4583 goto out_free_dev;
4584
4585 usb_set_intfdata(intf, data);
4586
4587 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4588 &force_poll_sync_fops);
4589
4590 return 0;
4591
4592out_free_dev:
4593 if (data->reset_gpio)
4594 gpiod_put(data->reset_gpio);
4595 hci_free_dev(hdev);
4596 return err;
4597}
4598
4599static void btusb_disconnect(struct usb_interface *intf)
4600{
4601 struct btusb_data *data = usb_get_intfdata(intf);
4602 struct hci_dev *hdev;
4603
4604 BT_DBG("intf %p", intf);
4605
4606 if (!data)
4607 return;
4608
4609 hdev = data->hdev;
4610 usb_set_intfdata(data->intf, NULL);
4611
4612 if (data->isoc)
4613 usb_set_intfdata(data->isoc, NULL);
4614
4615 if (data->diag)
4616 usb_set_intfdata(data->diag, NULL);
4617
4618 hci_unregister_dev(hdev);
4619
4620 if (intf == data->intf) {
4621 if (data->isoc)
4622 usb_driver_release_interface(&btusb_driver, data->isoc);
4623 if (data->diag)
4624 usb_driver_release_interface(&btusb_driver, data->diag);
4625 } else if (intf == data->isoc) {
4626 if (data->diag)
4627 usb_driver_release_interface(&btusb_driver, data->diag);
4628 usb_driver_release_interface(&btusb_driver, data->intf);
4629 } else if (intf == data->diag) {
4630 usb_driver_release_interface(&btusb_driver, data->intf);
4631 if (data->isoc)
4632 usb_driver_release_interface(&btusb_driver, data->isoc);
4633 }
4634
4635 if (data->oob_wake_irq)
4636 device_init_wakeup(&data->udev->dev, false);
4637
4638 if (data->reset_gpio)
4639 gpiod_put(data->reset_gpio);
4640
4641 hci_free_dev(hdev);
4642}
4643
4644#ifdef CONFIG_PM
4645static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4646{
4647 struct btusb_data *data = usb_get_intfdata(intf);
4648
4649 BT_DBG("intf %p", intf);
4650
4651 /* Don't suspend if there are connections */
4652 if (hci_conn_count(data->hdev))
4653 return -EBUSY;
4654
4655 if (data->suspend_count++)
4656 return 0;
4657
4658 spin_lock_irq(&data->txlock);
4659 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4660 set_bit(BTUSB_SUSPENDING, &data->flags);
4661 spin_unlock_irq(&data->txlock);
4662 } else {
4663 spin_unlock_irq(&data->txlock);
4664 data->suspend_count--;
4665 return -EBUSY;
4666 }
4667
4668 cancel_work_sync(&data->work);
4669
4670 btusb_stop_traffic(data);
4671 usb_kill_anchored_urbs(&data->tx_anchor);
4672
4673 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4674 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4675 enable_irq_wake(data->oob_wake_irq);
4676 enable_irq(data->oob_wake_irq);
4677 }
4678
4679 /* For global suspend, Realtek devices lose the loaded fw
4680 * in them. But for autosuspend, firmware should remain.
4681 * Actually, it depends on whether the usb host sends
4682 * set feature (enable wakeup) or not.
4683 */
4684 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4685 if (PMSG_IS_AUTO(message) &&
4686 device_can_wakeup(&data->udev->dev))
4687 data->udev->do_remote_wakeup = 1;
4688 else if (!PMSG_IS_AUTO(message) &&
4689 !device_may_wakeup(&data->udev->dev)) {
4690 data->udev->do_remote_wakeup = 0;
4691 data->udev->reset_resume = 1;
4692 }
4693 }
4694
4695 return 0;
4696}
4697
4698static void play_deferred(struct btusb_data *data)
4699{
4700 struct urb *urb;
4701 int err;
4702
4703 while ((urb = usb_get_from_anchor(&data->deferred))) {
4704 usb_anchor_urb(urb, &data->tx_anchor);
4705
4706 err = usb_submit_urb(urb, GFP_ATOMIC);
4707 if (err < 0) {
4708 if (err != -EPERM && err != -ENODEV)
4709 BT_ERR("%s urb %p submission failed (%d)",
4710 data->hdev->name, urb, -err);
4711 kfree(urb->setup_packet);
4712 usb_unanchor_urb(urb);
4713 usb_free_urb(urb);
4714 break;
4715 }
4716
4717 data->tx_in_flight++;
4718 usb_free_urb(urb);
4719 }
4720
4721 /* Cleanup the rest deferred urbs. */
4722 while ((urb = usb_get_from_anchor(&data->deferred))) {
4723 kfree(urb->setup_packet);
4724 usb_free_urb(urb);
4725 }
4726}
4727
4728static int btusb_resume(struct usb_interface *intf)
4729{
4730 struct btusb_data *data = usb_get_intfdata(intf);
4731 struct hci_dev *hdev = data->hdev;
4732 int err = 0;
4733
4734 BT_DBG("intf %p", intf);
4735
4736 if (--data->suspend_count)
4737 return 0;
4738
4739 /* Disable only if not already disabled (keep it balanced) */
4740 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4741 disable_irq(data->oob_wake_irq);
4742 disable_irq_wake(data->oob_wake_irq);
4743 }
4744
4745 if (!test_bit(HCI_RUNNING, &hdev->flags))
4746 goto done;
4747
4748 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4749 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4750 if (err < 0) {
4751 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4752 goto failed;
4753 }
4754 }
4755
4756 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4757 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4758 if (err < 0) {
4759 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4760 goto failed;
4761 }
4762
4763 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4764 }
4765
4766 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4767 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4768 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4769 else
4770 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4771 }
4772
4773 spin_lock_irq(&data->txlock);
4774 play_deferred(data);
4775 clear_bit(BTUSB_SUSPENDING, &data->flags);
4776 spin_unlock_irq(&data->txlock);
4777 schedule_work(&data->work);
4778
4779 return 0;
4780
4781failed:
4782 usb_scuttle_anchored_urbs(&data->deferred);
4783done:
4784 spin_lock_irq(&data->txlock);
4785 clear_bit(BTUSB_SUSPENDING, &data->flags);
4786 spin_unlock_irq(&data->txlock);
4787
4788 return err;
4789}
4790#endif
4791
4792#ifdef CONFIG_DEV_COREDUMP
4793static void btusb_coredump(struct device *dev)
4794{
4795 struct btusb_data *data = dev_get_drvdata(dev);
4796 struct hci_dev *hdev = data->hdev;
4797
4798 if (hdev->dump.coredump)
4799 hdev->dump.coredump(hdev);
4800}
4801#endif
4802
4803static struct usb_driver btusb_driver = {
4804 .name = "btusb",
4805 .probe = btusb_probe,
4806 .disconnect = btusb_disconnect,
4807#ifdef CONFIG_PM
4808 .suspend = btusb_suspend,
4809 .resume = btusb_resume,
4810#endif
4811 .id_table = btusb_table,
4812 .supports_autosuspend = 1,
4813 .disable_hub_initiated_lpm = 1,
4814
4815#ifdef CONFIG_DEV_COREDUMP
4816 .driver = {
4817 .coredump = btusb_coredump,
4818 },
4819#endif
4820};
4821
4822module_usb_driver(btusb_driver);
4823
4824module_param(disable_scofix, bool, 0644);
4825MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4826
4827module_param(force_scofix, bool, 0644);
4828MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4829
4830module_param(enable_autosuspend, bool, 0644);
4831MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4832
4833module_param(reset, bool, 0644);
4834MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4835
4836MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4837MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4838MODULE_VERSION(VERSION);
4839MODULE_LICENSE("GPL");