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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <linux/debugfs.h>
20#include <asm/unaligned.h>
21
22#include <net/bluetooth/bluetooth.h>
23#include <net/bluetooth/hci_core.h>
24
25#include "btintel.h"
26#include "btbcm.h"
27#include "btrtl.h"
28#include "btmtk.h"
29
30#define VERSION "0.8"
31
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE BIT(0)
41#define BTUSB_DIGIANSWER BIT(1)
42#define BTUSB_CSR BIT(2)
43#define BTUSB_SNIFFER BIT(3)
44#define BTUSB_BCM92035 BIT(4)
45#define BTUSB_BROKEN_ISOC BIT(5)
46#define BTUSB_WRONG_SCO_MTU BIT(6)
47#define BTUSB_ATH3012 BIT(7)
48#define BTUSB_INTEL_COMBINED BIT(8)
49#define BTUSB_INTEL_BOOT BIT(9)
50#define BTUSB_BCM_PATCHRAM BIT(10)
51#define BTUSB_MARVELL BIT(11)
52#define BTUSB_SWAVE BIT(12)
53#define BTUSB_AMP BIT(13)
54#define BTUSB_QCA_ROME BIT(14)
55#define BTUSB_BCM_APPLE BIT(15)
56#define BTUSB_REALTEK BIT(16)
57#define BTUSB_BCM2045 BIT(17)
58#define BTUSB_IFNUM_2 BIT(18)
59#define BTUSB_CW6622 BIT(19)
60#define BTUSB_MEDIATEK BIT(20)
61#define BTUSB_WIDEBAND_SPEECH BIT(21)
62#define BTUSB_VALID_LE_STATES BIT(22)
63#define BTUSB_QCA_WCN6855 BIT(23)
64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67#define BTUSB_ACTIONS_SEMI BIT(27)
68
69static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
75
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
78
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
82
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
85
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
88
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
91
92 /* Apple iMac11,1 */
93 { USB_DEVICE(0x05ac, 0x8215) },
94
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
97
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
100
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
103
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
106
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
109
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
112
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
115
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
119
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
122
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172
173 { } /* Terminating entry */
174};
175
176MODULE_DEVICE_TABLE(usb, btusb_table);
177
178static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH |
302 BTUSB_VALID_LE_STATES },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH |
305 BTUSB_VALID_LE_STATES },
306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH |
308 BTUSB_VALID_LE_STATES },
309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH |
311 BTUSB_VALID_LE_STATES },
312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH |
314 BTUSB_VALID_LE_STATES },
315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH |
317 BTUSB_VALID_LE_STATES },
318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH |
320 BTUSB_VALID_LE_STATES },
321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH |
323 BTUSB_VALID_LE_STATES },
324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH |
326 BTUSB_VALID_LE_STATES },
327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH |
329 BTUSB_VALID_LE_STATES },
330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH |
332 BTUSB_VALID_LE_STATES },
333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH |
335 BTUSB_VALID_LE_STATES },
336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH |
338 BTUSB_VALID_LE_STATES },
339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH |
341 BTUSB_VALID_LE_STATES },
342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH |
344 BTUSB_VALID_LE_STATES },
345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH |
347 BTUSB_VALID_LE_STATES },
348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH |
350 BTUSB_VALID_LE_STATES },
351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH |
353 BTUSB_VALID_LE_STATES },
354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH |
359 BTUSB_VALID_LE_STATES },
360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH |
362 BTUSB_VALID_LE_STATES },
363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH |
365 BTUSB_VALID_LE_STATES },
366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH |
368 BTUSB_VALID_LE_STATES },
369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH |
371 BTUSB_VALID_LE_STATES },
372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH |
374 BTUSB_VALID_LE_STATES },
375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH |
377 BTUSB_VALID_LE_STATES },
378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH |
383 BTUSB_VALID_LE_STATES },
384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH |
386 BTUSB_VALID_LE_STATES },
387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
388 BTUSB_WIDEBAND_SPEECH |
389 BTUSB_VALID_LE_STATES },
390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH |
392 BTUSB_VALID_LE_STATES },
393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH |
395 BTUSB_VALID_LE_STATES },
396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH |
398 BTUSB_VALID_LE_STATES },
399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH |
401 BTUSB_VALID_LE_STATES },
402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
405
406 /* QCA WCN785x chipset */
407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
410
411 /* Broadcom BCM2035 */
412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* Broadcom BCM2045 */
417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* IBM/Lenovo ThinkPad with Broadcom chip */
421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* HP laptop with Broadcom chip */
425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
426
427 /* Dell laptop with Broadcom chip */
428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
429
430 /* Dell Wireless 370 and 410 devices */
431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Belkin F8T012 and F8T013 devices */
435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Asus WL-BTD202 device */
439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
440
441 /* Kensington Bluetooth USB adapter */
442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
443
444 /* RTX Telecom based adapters with buggy SCO support */
445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
447
448 /* CONWISE Technology based adapters with buggy SCO support */
449 { USB_DEVICE(0x0e5e, 0x6622),
450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
451
452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
454
455 /* Digianswer devices */
456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
458
459 /* CSR BlueCore Bluetooth Sniffer */
460 { USB_DEVICE(0x0a12, 0x0002),
461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
462
463 /* Frontline ComProbe Bluetooth Sniffer */
464 { USB_DEVICE(0x16d3, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Marvell Bluetooth devices */
468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
471
472 /* Intel Bluetooth devices */
473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
481 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
482 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
483 BTUSB_INTEL_NO_WBS_SUPPORT |
484 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
486 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
487 BTUSB_INTEL_NO_WBS_SUPPORT |
488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
489 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
490 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
493
494 /* Other Intel Bluetooth devices */
495 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
496 .driver_info = BTUSB_IGNORE },
497
498 /* Realtek 8821CE Bluetooth devices */
499 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8822CE Bluetooth devices */
503 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507
508 /* Realtek 8822CU Bluetooth devices */
509 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511
512 /* Realtek 8852AE Bluetooth devices */
513 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527
528 /* Realtek 8852CE Bluetooth devices */
529 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
540 BTUSB_WIDEBAND_SPEECH },
541
542 /* Realtek 8852BE Bluetooth devices */
543 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
544 BTUSB_WIDEBAND_SPEECH },
545 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
554 BTUSB_WIDEBAND_SPEECH },
555
556 /* Realtek Bluetooth devices */
557 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
558 .driver_info = BTUSB_REALTEK },
559
560 /* MediaTek Bluetooth devices */
561 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
562 .driver_info = BTUSB_MEDIATEK |
563 BTUSB_WIDEBAND_SPEECH |
564 BTUSB_VALID_LE_STATES },
565
566 /* Additional MediaTek MT7615E Bluetooth devices */
567 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
568
569 /* Additional MediaTek MT7663 Bluetooth devices */
570 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
571 BTUSB_WIDEBAND_SPEECH |
572 BTUSB_VALID_LE_STATES },
573 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
574 BTUSB_WIDEBAND_SPEECH |
575 BTUSB_VALID_LE_STATES },
576
577 /* Additional MediaTek MT7668 Bluetooth devices */
578 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
579 BTUSB_WIDEBAND_SPEECH |
580 BTUSB_VALID_LE_STATES },
581
582 /* Additional MediaTek MT7921 Bluetooth devices */
583 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH |
585 BTUSB_VALID_LE_STATES },
586 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
587 BTUSB_WIDEBAND_SPEECH |
588 BTUSB_VALID_LE_STATES },
589 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
590 BTUSB_WIDEBAND_SPEECH |
591 BTUSB_VALID_LE_STATES },
592 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
593 BTUSB_WIDEBAND_SPEECH |
594 BTUSB_VALID_LE_STATES },
595 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH |
597 BTUSB_VALID_LE_STATES },
598 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
599 BTUSB_WIDEBAND_SPEECH |
600 BTUSB_VALID_LE_STATES },
601 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH |
603 BTUSB_VALID_LE_STATES },
604 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
605 BTUSB_WIDEBAND_SPEECH |
606 BTUSB_VALID_LE_STATES },
607 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH |
609 BTUSB_VALID_LE_STATES },
610 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
611 BTUSB_WIDEBAND_SPEECH |
612 BTUSB_VALID_LE_STATES },
613 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH |
615 BTUSB_VALID_LE_STATES },
616
617 /* MediaTek MT7922A Bluetooth devices */
618 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
619 BTUSB_WIDEBAND_SPEECH |
620 BTUSB_VALID_LE_STATES },
621 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH |
623 BTUSB_VALID_LE_STATES },
624 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
625 BTUSB_WIDEBAND_SPEECH |
626 BTUSB_VALID_LE_STATES },
627 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH |
629 BTUSB_VALID_LE_STATES },
630 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
631 BTUSB_WIDEBAND_SPEECH |
632 BTUSB_VALID_LE_STATES },
633 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH |
635 BTUSB_VALID_LE_STATES },
636 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
637 BTUSB_WIDEBAND_SPEECH |
638 BTUSB_VALID_LE_STATES },
639 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH |
641 BTUSB_VALID_LE_STATES },
642 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
643 BTUSB_WIDEBAND_SPEECH |
644 BTUSB_VALID_LE_STATES },
645 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH |
647 BTUSB_VALID_LE_STATES },
648 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
649 BTUSB_WIDEBAND_SPEECH |
650 BTUSB_VALID_LE_STATES },
651 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
652 BTUSB_WIDEBAND_SPEECH |
653 BTUSB_VALID_LE_STATES },
654 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
655 BTUSB_WIDEBAND_SPEECH |
656 BTUSB_VALID_LE_STATES },
657
658 /* Additional Realtek 8723AE Bluetooth devices */
659 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
660 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
661
662 /* Additional Realtek 8723BE Bluetooth devices */
663 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
664 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
665 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
666 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
667 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
668 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
669 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
670
671 /* Additional Realtek 8723BU Bluetooth devices */
672 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
673
674 /* Additional Realtek 8723DE Bluetooth devices */
675 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
676 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
677
678 /* Additional Realtek 8761BUV Bluetooth devices */
679 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
680 BTUSB_WIDEBAND_SPEECH },
681 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
682 BTUSB_WIDEBAND_SPEECH },
683 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
684 BTUSB_WIDEBAND_SPEECH },
685 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
686 BTUSB_WIDEBAND_SPEECH },
687 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
688 BTUSB_WIDEBAND_SPEECH },
689 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
690 BTUSB_WIDEBAND_SPEECH },
691 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
692 BTUSB_WIDEBAND_SPEECH },
693
694 /* Additional Realtek 8821AE Bluetooth devices */
695 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
696 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
697 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
698 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
699 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
700
701 /* Additional Realtek 8822BE Bluetooth devices */
702 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
703 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
704
705 /* Additional Realtek 8822CE Bluetooth devices */
706 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
707 BTUSB_WIDEBAND_SPEECH },
708 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
709 BTUSB_WIDEBAND_SPEECH },
710 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
711 BTUSB_WIDEBAND_SPEECH },
712 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
713 BTUSB_WIDEBAND_SPEECH },
714 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
725 BTUSB_WIDEBAND_SPEECH },
726 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
727 BTUSB_WIDEBAND_SPEECH },
728
729 /* Actions Semiconductor ATS2851 based devices */
730 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
731
732 /* Silicon Wave based devices */
733 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
734
735 { } /* Terminating entry */
736};
737
738/* The Bluetooth USB module build into some devices needs to be reset on resume,
739 * this is a problem with the platform (likely shutting off all power) not with
740 * the module itself. So we use a DMI list to match known broken platforms.
741 */
742static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
743 {
744 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
745 .matches = {
746 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
747 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
748 },
749 },
750 {
751 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
752 .matches = {
753 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
754 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
755 },
756 },
757 {
758 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
759 .matches = {
760 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
761 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
762 },
763 },
764 {}
765};
766
767struct qca_dump_info {
768 /* fields for dump collection */
769 u16 id_vendor;
770 u16 id_product;
771 u32 fw_version;
772 u32 controller_id;
773 u32 ram_dump_size;
774 u16 ram_dump_seqno;
775};
776
777#define BTUSB_MAX_ISOC_FRAMES 10
778
779#define BTUSB_INTR_RUNNING 0
780#define BTUSB_BULK_RUNNING 1
781#define BTUSB_ISOC_RUNNING 2
782#define BTUSB_SUSPENDING 3
783#define BTUSB_DID_ISO_RESUME 4
784#define BTUSB_BOOTLOADER 5
785#define BTUSB_DOWNLOADING 6
786#define BTUSB_FIRMWARE_LOADED 7
787#define BTUSB_FIRMWARE_FAILED 8
788#define BTUSB_BOOTING 9
789#define BTUSB_DIAG_RUNNING 10
790#define BTUSB_OOB_WAKE_ENABLED 11
791#define BTUSB_HW_RESET_ACTIVE 12
792#define BTUSB_TX_WAIT_VND_EVT 13
793#define BTUSB_WAKEUP_AUTOSUSPEND 14
794#define BTUSB_USE_ALT3_FOR_WBS 15
795#define BTUSB_ALT6_CONTINUOUS_TX 16
796#define BTUSB_HW_SSR_ACTIVE 17
797
798struct btusb_data {
799 struct hci_dev *hdev;
800 struct usb_device *udev;
801 struct usb_interface *intf;
802 struct usb_interface *isoc;
803 struct usb_interface *diag;
804 unsigned isoc_ifnum;
805
806 unsigned long flags;
807
808 bool poll_sync;
809 int intr_interval;
810 struct work_struct work;
811 struct work_struct waker;
812 struct delayed_work rx_work;
813
814 struct sk_buff_head acl_q;
815
816 struct usb_anchor deferred;
817 struct usb_anchor tx_anchor;
818 int tx_in_flight;
819 spinlock_t txlock;
820
821 struct usb_anchor intr_anchor;
822 struct usb_anchor bulk_anchor;
823 struct usb_anchor isoc_anchor;
824 struct usb_anchor diag_anchor;
825 struct usb_anchor ctrl_anchor;
826 spinlock_t rxlock;
827
828 struct sk_buff *evt_skb;
829 struct sk_buff *acl_skb;
830 struct sk_buff *sco_skb;
831
832 struct usb_endpoint_descriptor *intr_ep;
833 struct usb_endpoint_descriptor *bulk_tx_ep;
834 struct usb_endpoint_descriptor *bulk_rx_ep;
835 struct usb_endpoint_descriptor *isoc_tx_ep;
836 struct usb_endpoint_descriptor *isoc_rx_ep;
837 struct usb_endpoint_descriptor *diag_tx_ep;
838 struct usb_endpoint_descriptor *diag_rx_ep;
839
840 struct gpio_desc *reset_gpio;
841
842 __u8 cmdreq_type;
843 __u8 cmdreq;
844
845 unsigned int sco_num;
846 unsigned int air_mode;
847 bool usb_alt6_packet_flow;
848 int isoc_altsetting;
849 int suspend_count;
850
851 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
852 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
853 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
854
855 int (*setup_on_usb)(struct hci_dev *hdev);
856
857 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
858 unsigned cmd_timeout_cnt;
859
860 struct qca_dump_info qca_dump;
861};
862
863static void btusb_reset(struct hci_dev *hdev)
864{
865 struct btusb_data *data;
866 int err;
867
868 if (hdev->reset) {
869 hdev->reset(hdev);
870 return;
871 }
872
873 data = hci_get_drvdata(hdev);
874 /* This is not an unbalanced PM reference since the device will reset */
875 err = usb_autopm_get_interface(data->intf);
876 if (err) {
877 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
878 return;
879 }
880
881 bt_dev_err(hdev, "Resetting usb device.");
882 usb_queue_reset_device(data->intf);
883}
884
885static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
886{
887 struct btusb_data *data = hci_get_drvdata(hdev);
888 struct gpio_desc *reset_gpio = data->reset_gpio;
889 struct btintel_data *intel_data = hci_get_priv(hdev);
890
891 if (++data->cmd_timeout_cnt < 5)
892 return;
893
894 if (intel_data->acpi_reset_method) {
895 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
896 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
897 return;
898 }
899
900 bt_dev_err(hdev, "Initiating acpi reset method");
901 /* If ACPI reset method fails, lets try with legacy GPIO
902 * toggling
903 */
904 if (!intel_data->acpi_reset_method(hdev)) {
905 return;
906 }
907 }
908
909 if (!reset_gpio) {
910 btusb_reset(hdev);
911 return;
912 }
913
914 /*
915 * Toggle the hard reset line if the platform provides one. The reset
916 * is going to yank the device off the USB and then replug. So doing
917 * once is enough. The cleanup is handled correctly on the way out
918 * (standard USB disconnect), and the new device is detected cleanly
919 * and bound to the driver again like it should be.
920 */
921 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
922 bt_dev_err(hdev, "last reset failed? Not resetting again");
923 return;
924 }
925
926 bt_dev_err(hdev, "Initiating HW reset via gpio");
927 gpiod_set_value_cansleep(reset_gpio, 1);
928 msleep(100);
929 gpiod_set_value_cansleep(reset_gpio, 0);
930}
931
932#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
933#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
934#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
935
936#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
937
938struct rtk_dev_coredump_hdr {
939 u8 type;
940 u8 code;
941 u8 reserved[2];
942} __packed;
943
944static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
945 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
946{
947 struct sk_buff *skb;
948
949 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
950 if (!skb)
951 return;
952
953 skb_put_data(skb, hdr, sizeof(*hdr));
954 if (len)
955 skb_put_data(skb, buf, len);
956
957 if (!hci_devcd_init(hdev, skb->len)) {
958 hci_devcd_append(hdev, skb);
959 hci_devcd_complete(hdev);
960 } else {
961 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
962 kfree_skb(skb);
963 }
964}
965
966static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
967{
968 struct btusb_data *data = hci_get_drvdata(hdev);
969 struct gpio_desc *reset_gpio = data->reset_gpio;
970 struct rtk_dev_coredump_hdr hdr = {
971 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
972 };
973
974 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
975
976 if (++data->cmd_timeout_cnt < 5)
977 return;
978
979 if (!reset_gpio) {
980 btusb_reset(hdev);
981 return;
982 }
983
984 /* Toggle the hard reset line. The Realtek device is going to
985 * yank itself off the USB and then replug. The cleanup is handled
986 * correctly on the way out (standard USB disconnect), and the new
987 * device is detected cleanly and bound to the driver again like
988 * it should be.
989 */
990 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
991 bt_dev_err(hdev, "last reset failed? Not resetting again");
992 return;
993 }
994
995 bt_dev_err(hdev, "Reset Realtek device via gpio");
996 gpiod_set_value_cansleep(reset_gpio, 1);
997 msleep(200);
998 gpiod_set_value_cansleep(reset_gpio, 0);
999}
1000
1001static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1002{
1003 struct rtk_dev_coredump_hdr hdr = {
1004 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1005 .code = code,
1006 };
1007
1008 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1009
1010 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1011}
1012
1013static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1014{
1015 struct btusb_data *data = hci_get_drvdata(hdev);
1016 struct gpio_desc *reset_gpio = data->reset_gpio;
1017
1018 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1019 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1020 return;
1021 }
1022
1023 if (++data->cmd_timeout_cnt < 5)
1024 return;
1025
1026 if (reset_gpio) {
1027 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1028
1029 /* Toggle the hard reset line. The qca bt device is going to
1030 * yank itself off the USB and then replug. The cleanup is handled
1031 * correctly on the way out (standard USB disconnect), and the new
1032 * device is detected cleanly and bound to the driver again like
1033 * it should be.
1034 */
1035 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1036 bt_dev_err(hdev, "last reset failed? Not resetting again");
1037 return;
1038 }
1039
1040 gpiod_set_value_cansleep(reset_gpio, 0);
1041 msleep(200);
1042 gpiod_set_value_cansleep(reset_gpio, 1);
1043
1044 return;
1045 }
1046
1047 btusb_reset(hdev);
1048}
1049
1050static inline void btusb_free_frags(struct btusb_data *data)
1051{
1052 unsigned long flags;
1053
1054 spin_lock_irqsave(&data->rxlock, flags);
1055
1056 dev_kfree_skb_irq(data->evt_skb);
1057 data->evt_skb = NULL;
1058
1059 dev_kfree_skb_irq(data->acl_skb);
1060 data->acl_skb = NULL;
1061
1062 dev_kfree_skb_irq(data->sco_skb);
1063 data->sco_skb = NULL;
1064
1065 spin_unlock_irqrestore(&data->rxlock, flags);
1066}
1067
1068static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1069{
1070 if (data->intr_interval) {
1071 /* Trigger dequeue immediatelly if an event is received */
1072 schedule_delayed_work(&data->rx_work, 0);
1073 }
1074
1075 return data->recv_event(data->hdev, skb);
1076}
1077
1078static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1079{
1080 struct sk_buff *skb;
1081 unsigned long flags;
1082 int err = 0;
1083
1084 spin_lock_irqsave(&data->rxlock, flags);
1085 skb = data->evt_skb;
1086
1087 while (count) {
1088 int len;
1089
1090 if (!skb) {
1091 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1092 if (!skb) {
1093 err = -ENOMEM;
1094 break;
1095 }
1096
1097 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1098 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1099 }
1100
1101 len = min_t(uint, hci_skb_expect(skb), count);
1102 skb_put_data(skb, buffer, len);
1103
1104 count -= len;
1105 buffer += len;
1106 hci_skb_expect(skb) -= len;
1107
1108 if (skb->len == HCI_EVENT_HDR_SIZE) {
1109 /* Complete event header */
1110 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1111
1112 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1113 kfree_skb(skb);
1114 skb = NULL;
1115
1116 err = -EILSEQ;
1117 break;
1118 }
1119 }
1120
1121 if (!hci_skb_expect(skb)) {
1122 /* Complete frame */
1123 btusb_recv_event(data, skb);
1124 skb = NULL;
1125 }
1126 }
1127
1128 data->evt_skb = skb;
1129 spin_unlock_irqrestore(&data->rxlock, flags);
1130
1131 return err;
1132}
1133
1134static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1135{
1136 /* Only queue ACL packet if intr_interval is set as it means
1137 * force_poll_sync has been enabled.
1138 */
1139 if (!data->intr_interval)
1140 return data->recv_acl(data->hdev, skb);
1141
1142 skb_queue_tail(&data->acl_q, skb);
1143 schedule_delayed_work(&data->rx_work, data->intr_interval);
1144
1145 return 0;
1146}
1147
1148static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1149{
1150 struct sk_buff *skb;
1151 unsigned long flags;
1152 int err = 0;
1153
1154 spin_lock_irqsave(&data->rxlock, flags);
1155 skb = data->acl_skb;
1156
1157 while (count) {
1158 int len;
1159
1160 if (!skb) {
1161 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1162 if (!skb) {
1163 err = -ENOMEM;
1164 break;
1165 }
1166
1167 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1168 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1169 }
1170
1171 len = min_t(uint, hci_skb_expect(skb), count);
1172 skb_put_data(skb, buffer, len);
1173
1174 count -= len;
1175 buffer += len;
1176 hci_skb_expect(skb) -= len;
1177
1178 if (skb->len == HCI_ACL_HDR_SIZE) {
1179 __le16 dlen = hci_acl_hdr(skb)->dlen;
1180
1181 /* Complete ACL header */
1182 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1183
1184 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1185 kfree_skb(skb);
1186 skb = NULL;
1187
1188 err = -EILSEQ;
1189 break;
1190 }
1191 }
1192
1193 if (!hci_skb_expect(skb)) {
1194 /* Complete frame */
1195 btusb_recv_acl(data, skb);
1196 skb = NULL;
1197 }
1198 }
1199
1200 data->acl_skb = skb;
1201 spin_unlock_irqrestore(&data->rxlock, flags);
1202
1203 return err;
1204}
1205
1206static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1207 struct hci_sco_hdr *hdr)
1208{
1209 __u16 handle;
1210
1211 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1212 // Can't validate, userspace controls everything.
1213 return true;
1214
1215 /*
1216 * USB isochronous transfers are not designed to be reliable and may
1217 * lose fragments. When this happens, the next first fragment
1218 * encountered might actually be a continuation fragment.
1219 * Validate the handle to detect it and drop it, or else the upper
1220 * layer will get garbage for a while.
1221 */
1222
1223 handle = hci_handle(__le16_to_cpu(hdr->handle));
1224
1225 switch (hci_conn_lookup_type(hdev, handle)) {
1226 case SCO_LINK:
1227 case ESCO_LINK:
1228 return true;
1229 default:
1230 return false;
1231 }
1232}
1233
1234static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1235{
1236 struct sk_buff *skb;
1237 unsigned long flags;
1238 int err = 0;
1239
1240 spin_lock_irqsave(&data->rxlock, flags);
1241 skb = data->sco_skb;
1242
1243 while (count) {
1244 int len;
1245
1246 if (!skb) {
1247 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1248 if (!skb) {
1249 err = -ENOMEM;
1250 break;
1251 }
1252
1253 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1254 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1255 }
1256
1257 len = min_t(uint, hci_skb_expect(skb), count);
1258 skb_put_data(skb, buffer, len);
1259
1260 count -= len;
1261 buffer += len;
1262 hci_skb_expect(skb) -= len;
1263
1264 if (skb->len == HCI_SCO_HDR_SIZE) {
1265 /* Complete SCO header */
1266 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1267
1268 hci_skb_expect(skb) = hdr->dlen;
1269
1270 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1271 !btusb_validate_sco_handle(data->hdev, hdr)) {
1272 kfree_skb(skb);
1273 skb = NULL;
1274
1275 err = -EILSEQ;
1276 break;
1277 }
1278 }
1279
1280 if (!hci_skb_expect(skb)) {
1281 /* Complete frame */
1282 hci_recv_frame(data->hdev, skb);
1283 skb = NULL;
1284 }
1285 }
1286
1287 data->sco_skb = skb;
1288 spin_unlock_irqrestore(&data->rxlock, flags);
1289
1290 return err;
1291}
1292
1293static void btusb_intr_complete(struct urb *urb)
1294{
1295 struct hci_dev *hdev = urb->context;
1296 struct btusb_data *data = hci_get_drvdata(hdev);
1297 int err;
1298
1299 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1300 urb->actual_length);
1301
1302 if (!test_bit(HCI_RUNNING, &hdev->flags))
1303 return;
1304
1305 if (urb->status == 0) {
1306 hdev->stat.byte_rx += urb->actual_length;
1307
1308 if (btusb_recv_intr(data, urb->transfer_buffer,
1309 urb->actual_length) < 0) {
1310 bt_dev_err(hdev, "corrupted event packet");
1311 hdev->stat.err_rx++;
1312 }
1313 } else if (urb->status == -ENOENT) {
1314 /* Avoid suspend failed when usb_kill_urb */
1315 return;
1316 }
1317
1318 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1319 return;
1320
1321 usb_mark_last_busy(data->udev);
1322 usb_anchor_urb(urb, &data->intr_anchor);
1323
1324 err = usb_submit_urb(urb, GFP_ATOMIC);
1325 if (err < 0) {
1326 /* -EPERM: urb is being killed;
1327 * -ENODEV: device got disconnected
1328 */
1329 if (err != -EPERM && err != -ENODEV)
1330 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1331 urb, -err);
1332 if (err != -EPERM)
1333 hci_cmd_sync_cancel(hdev, -err);
1334 usb_unanchor_urb(urb);
1335 }
1336}
1337
1338static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1339{
1340 struct btusb_data *data = hci_get_drvdata(hdev);
1341 struct urb *urb;
1342 unsigned char *buf;
1343 unsigned int pipe;
1344 int err, size;
1345
1346 BT_DBG("%s", hdev->name);
1347
1348 if (!data->intr_ep)
1349 return -ENODEV;
1350
1351 urb = usb_alloc_urb(0, mem_flags);
1352 if (!urb)
1353 return -ENOMEM;
1354
1355 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1356
1357 buf = kmalloc(size, mem_flags);
1358 if (!buf) {
1359 usb_free_urb(urb);
1360 return -ENOMEM;
1361 }
1362
1363 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1364
1365 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1366 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1367
1368 urb->transfer_flags |= URB_FREE_BUFFER;
1369
1370 usb_anchor_urb(urb, &data->intr_anchor);
1371
1372 err = usb_submit_urb(urb, mem_flags);
1373 if (err < 0) {
1374 if (err != -EPERM && err != -ENODEV)
1375 bt_dev_err(hdev, "urb %p submission failed (%d)",
1376 urb, -err);
1377 if (err != -EPERM)
1378 hci_cmd_sync_cancel(hdev, -err);
1379 usb_unanchor_urb(urb);
1380 }
1381
1382 /* Only initialize intr_interval if URB poll sync is enabled */
1383 if (!data->poll_sync)
1384 goto done;
1385
1386 /* The units are frames (milliseconds) for full and low speed devices,
1387 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1388 * devices.
1389 *
1390 * This is done once on open/resume so it shouldn't change even if
1391 * force_poll_sync changes.
1392 */
1393 switch (urb->dev->speed) {
1394 case USB_SPEED_SUPER_PLUS:
1395 case USB_SPEED_SUPER: /* units are 125us */
1396 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1397 break;
1398 default:
1399 data->intr_interval = msecs_to_jiffies(urb->interval);
1400 break;
1401 }
1402
1403done:
1404 usb_free_urb(urb);
1405
1406 return err;
1407}
1408
1409static void btusb_bulk_complete(struct urb *urb)
1410{
1411 struct hci_dev *hdev = urb->context;
1412 struct btusb_data *data = hci_get_drvdata(hdev);
1413 int err;
1414
1415 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1416 urb->actual_length);
1417
1418 if (!test_bit(HCI_RUNNING, &hdev->flags))
1419 return;
1420
1421 if (urb->status == 0) {
1422 hdev->stat.byte_rx += urb->actual_length;
1423
1424 if (data->recv_bulk(data, urb->transfer_buffer,
1425 urb->actual_length) < 0) {
1426 bt_dev_err(hdev, "corrupted ACL packet");
1427 hdev->stat.err_rx++;
1428 }
1429 } else if (urb->status == -ENOENT) {
1430 /* Avoid suspend failed when usb_kill_urb */
1431 return;
1432 }
1433
1434 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1435 return;
1436
1437 usb_anchor_urb(urb, &data->bulk_anchor);
1438 usb_mark_last_busy(data->udev);
1439
1440 err = usb_submit_urb(urb, GFP_ATOMIC);
1441 if (err < 0) {
1442 /* -EPERM: urb is being killed;
1443 * -ENODEV: device got disconnected
1444 */
1445 if (err != -EPERM && err != -ENODEV)
1446 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1447 urb, -err);
1448 usb_unanchor_urb(urb);
1449 }
1450}
1451
1452static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1453{
1454 struct btusb_data *data = hci_get_drvdata(hdev);
1455 struct urb *urb;
1456 unsigned char *buf;
1457 unsigned int pipe;
1458 int err, size = HCI_MAX_FRAME_SIZE;
1459
1460 BT_DBG("%s", hdev->name);
1461
1462 if (!data->bulk_rx_ep)
1463 return -ENODEV;
1464
1465 urb = usb_alloc_urb(0, mem_flags);
1466 if (!urb)
1467 return -ENOMEM;
1468
1469 buf = kmalloc(size, mem_flags);
1470 if (!buf) {
1471 usb_free_urb(urb);
1472 return -ENOMEM;
1473 }
1474
1475 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1476
1477 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1478 btusb_bulk_complete, hdev);
1479
1480 urb->transfer_flags |= URB_FREE_BUFFER;
1481
1482 usb_mark_last_busy(data->udev);
1483 usb_anchor_urb(urb, &data->bulk_anchor);
1484
1485 err = usb_submit_urb(urb, mem_flags);
1486 if (err < 0) {
1487 if (err != -EPERM && err != -ENODEV)
1488 bt_dev_err(hdev, "urb %p submission failed (%d)",
1489 urb, -err);
1490 usb_unanchor_urb(urb);
1491 }
1492
1493 usb_free_urb(urb);
1494
1495 return err;
1496}
1497
1498static void btusb_isoc_complete(struct urb *urb)
1499{
1500 struct hci_dev *hdev = urb->context;
1501 struct btusb_data *data = hci_get_drvdata(hdev);
1502 int i, err;
1503
1504 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1505 urb->actual_length);
1506
1507 if (!test_bit(HCI_RUNNING, &hdev->flags))
1508 return;
1509
1510 if (urb->status == 0) {
1511 for (i = 0; i < urb->number_of_packets; i++) {
1512 unsigned int offset = urb->iso_frame_desc[i].offset;
1513 unsigned int length = urb->iso_frame_desc[i].actual_length;
1514
1515 if (urb->iso_frame_desc[i].status)
1516 continue;
1517
1518 hdev->stat.byte_rx += length;
1519
1520 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1521 length) < 0) {
1522 bt_dev_err(hdev, "corrupted SCO packet");
1523 hdev->stat.err_rx++;
1524 }
1525 }
1526 } else if (urb->status == -ENOENT) {
1527 /* Avoid suspend failed when usb_kill_urb */
1528 return;
1529 }
1530
1531 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1532 return;
1533
1534 usb_anchor_urb(urb, &data->isoc_anchor);
1535
1536 err = usb_submit_urb(urb, GFP_ATOMIC);
1537 if (err < 0) {
1538 /* -EPERM: urb is being killed;
1539 * -ENODEV: device got disconnected
1540 */
1541 if (err != -EPERM && err != -ENODEV)
1542 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1543 urb, -err);
1544 usb_unanchor_urb(urb);
1545 }
1546}
1547
1548static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1549 int mtu, struct btusb_data *data)
1550{
1551 int i = 0, offset = 0;
1552 unsigned int interval;
1553
1554 BT_DBG("len %d mtu %d", len, mtu);
1555
1556 /* For mSBC ALT 6 settings some chips need to transmit the data
1557 * continuously without the zero length of USB packets.
1558 */
1559 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1560 goto ignore_usb_alt6_packet_flow;
1561
1562 /* For mSBC ALT 6 setting the host will send the packet at continuous
1563 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1564 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1565 * To maintain the rate we send 63bytes of usb packets alternatively for
1566 * 7ms and 8ms to maintain the rate as 7.5ms.
1567 */
1568 if (data->usb_alt6_packet_flow) {
1569 interval = 7;
1570 data->usb_alt6_packet_flow = false;
1571 } else {
1572 interval = 6;
1573 data->usb_alt6_packet_flow = true;
1574 }
1575
1576 for (i = 0; i < interval; i++) {
1577 urb->iso_frame_desc[i].offset = offset;
1578 urb->iso_frame_desc[i].length = offset;
1579 }
1580
1581ignore_usb_alt6_packet_flow:
1582 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1583 urb->iso_frame_desc[i].offset = offset;
1584 urb->iso_frame_desc[i].length = len;
1585 i++;
1586 }
1587
1588 urb->number_of_packets = i;
1589}
1590
1591static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1592{
1593 int i, offset = 0;
1594
1595 BT_DBG("len %d mtu %d", len, mtu);
1596
1597 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1598 i++, offset += mtu, len -= mtu) {
1599 urb->iso_frame_desc[i].offset = offset;
1600 urb->iso_frame_desc[i].length = mtu;
1601 }
1602
1603 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1604 urb->iso_frame_desc[i].offset = offset;
1605 urb->iso_frame_desc[i].length = len;
1606 i++;
1607 }
1608
1609 urb->number_of_packets = i;
1610}
1611
1612static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1613{
1614 struct btusb_data *data = hci_get_drvdata(hdev);
1615 struct urb *urb;
1616 unsigned char *buf;
1617 unsigned int pipe;
1618 int err, size;
1619
1620 BT_DBG("%s", hdev->name);
1621
1622 if (!data->isoc_rx_ep)
1623 return -ENODEV;
1624
1625 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1626 if (!urb)
1627 return -ENOMEM;
1628
1629 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1630 BTUSB_MAX_ISOC_FRAMES;
1631
1632 buf = kmalloc(size, mem_flags);
1633 if (!buf) {
1634 usb_free_urb(urb);
1635 return -ENOMEM;
1636 }
1637
1638 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1639
1640 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1641 hdev, data->isoc_rx_ep->bInterval);
1642
1643 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1644
1645 __fill_isoc_descriptor(urb, size,
1646 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1647
1648 usb_anchor_urb(urb, &data->isoc_anchor);
1649
1650 err = usb_submit_urb(urb, mem_flags);
1651 if (err < 0) {
1652 if (err != -EPERM && err != -ENODEV)
1653 bt_dev_err(hdev, "urb %p submission failed (%d)",
1654 urb, -err);
1655 usb_unanchor_urb(urb);
1656 }
1657
1658 usb_free_urb(urb);
1659
1660 return err;
1661}
1662
1663static void btusb_diag_complete(struct urb *urb)
1664{
1665 struct hci_dev *hdev = urb->context;
1666 struct btusb_data *data = hci_get_drvdata(hdev);
1667 int err;
1668
1669 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1670 urb->actual_length);
1671
1672 if (urb->status == 0) {
1673 struct sk_buff *skb;
1674
1675 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1676 if (skb) {
1677 skb_put_data(skb, urb->transfer_buffer,
1678 urb->actual_length);
1679 hci_recv_diag(hdev, skb);
1680 }
1681 } else if (urb->status == -ENOENT) {
1682 /* Avoid suspend failed when usb_kill_urb */
1683 return;
1684 }
1685
1686 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1687 return;
1688
1689 usb_anchor_urb(urb, &data->diag_anchor);
1690 usb_mark_last_busy(data->udev);
1691
1692 err = usb_submit_urb(urb, GFP_ATOMIC);
1693 if (err < 0) {
1694 /* -EPERM: urb is being killed;
1695 * -ENODEV: device got disconnected
1696 */
1697 if (err != -EPERM && err != -ENODEV)
1698 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1699 urb, -err);
1700 usb_unanchor_urb(urb);
1701 }
1702}
1703
1704static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1705{
1706 struct btusb_data *data = hci_get_drvdata(hdev);
1707 struct urb *urb;
1708 unsigned char *buf;
1709 unsigned int pipe;
1710 int err, size = HCI_MAX_FRAME_SIZE;
1711
1712 BT_DBG("%s", hdev->name);
1713
1714 if (!data->diag_rx_ep)
1715 return -ENODEV;
1716
1717 urb = usb_alloc_urb(0, mem_flags);
1718 if (!urb)
1719 return -ENOMEM;
1720
1721 buf = kmalloc(size, mem_flags);
1722 if (!buf) {
1723 usb_free_urb(urb);
1724 return -ENOMEM;
1725 }
1726
1727 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1728
1729 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1730 btusb_diag_complete, hdev);
1731
1732 urb->transfer_flags |= URB_FREE_BUFFER;
1733
1734 usb_mark_last_busy(data->udev);
1735 usb_anchor_urb(urb, &data->diag_anchor);
1736
1737 err = usb_submit_urb(urb, mem_flags);
1738 if (err < 0) {
1739 if (err != -EPERM && err != -ENODEV)
1740 bt_dev_err(hdev, "urb %p submission failed (%d)",
1741 urb, -err);
1742 usb_unanchor_urb(urb);
1743 }
1744
1745 usb_free_urb(urb);
1746
1747 return err;
1748}
1749
1750static void btusb_tx_complete(struct urb *urb)
1751{
1752 struct sk_buff *skb = urb->context;
1753 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1754 struct btusb_data *data = hci_get_drvdata(hdev);
1755 unsigned long flags;
1756
1757 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1758 urb->actual_length);
1759
1760 if (!test_bit(HCI_RUNNING, &hdev->flags))
1761 goto done;
1762
1763 if (!urb->status) {
1764 hdev->stat.byte_tx += urb->transfer_buffer_length;
1765 } else {
1766 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1767 hci_cmd_sync_cancel(hdev, -urb->status);
1768 hdev->stat.err_tx++;
1769 }
1770
1771done:
1772 spin_lock_irqsave(&data->txlock, flags);
1773 data->tx_in_flight--;
1774 spin_unlock_irqrestore(&data->txlock, flags);
1775
1776 kfree(urb->setup_packet);
1777
1778 kfree_skb(skb);
1779}
1780
1781static void btusb_isoc_tx_complete(struct urb *urb)
1782{
1783 struct sk_buff *skb = urb->context;
1784 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1785
1786 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1787 urb->actual_length);
1788
1789 if (!test_bit(HCI_RUNNING, &hdev->flags))
1790 goto done;
1791
1792 if (!urb->status)
1793 hdev->stat.byte_tx += urb->transfer_buffer_length;
1794 else
1795 hdev->stat.err_tx++;
1796
1797done:
1798 kfree(urb->setup_packet);
1799
1800 kfree_skb(skb);
1801}
1802
1803static int btusb_open(struct hci_dev *hdev)
1804{
1805 struct btusb_data *data = hci_get_drvdata(hdev);
1806 int err;
1807
1808 BT_DBG("%s", hdev->name);
1809
1810 err = usb_autopm_get_interface(data->intf);
1811 if (err < 0)
1812 return err;
1813
1814 /* Patching USB firmware files prior to starting any URBs of HCI path
1815 * It is more safe to use USB bulk channel for downloading USB patch
1816 */
1817 if (data->setup_on_usb) {
1818 err = data->setup_on_usb(hdev);
1819 if (err < 0)
1820 goto setup_fail;
1821 }
1822
1823 data->intf->needs_remote_wakeup = 1;
1824
1825 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1826 goto done;
1827
1828 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1829 if (err < 0)
1830 goto failed;
1831
1832 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1833 if (err < 0) {
1834 usb_kill_anchored_urbs(&data->intr_anchor);
1835 goto failed;
1836 }
1837
1838 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1839 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1840
1841 if (data->diag) {
1842 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1843 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1844 }
1845
1846done:
1847 usb_autopm_put_interface(data->intf);
1848 return 0;
1849
1850failed:
1851 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1852setup_fail:
1853 usb_autopm_put_interface(data->intf);
1854 return err;
1855}
1856
1857static void btusb_stop_traffic(struct btusb_data *data)
1858{
1859 usb_kill_anchored_urbs(&data->intr_anchor);
1860 usb_kill_anchored_urbs(&data->bulk_anchor);
1861 usb_kill_anchored_urbs(&data->isoc_anchor);
1862 usb_kill_anchored_urbs(&data->diag_anchor);
1863 usb_kill_anchored_urbs(&data->ctrl_anchor);
1864}
1865
1866static int btusb_close(struct hci_dev *hdev)
1867{
1868 struct btusb_data *data = hci_get_drvdata(hdev);
1869 int err;
1870
1871 BT_DBG("%s", hdev->name);
1872
1873 cancel_delayed_work(&data->rx_work);
1874 cancel_work_sync(&data->work);
1875 cancel_work_sync(&data->waker);
1876
1877 skb_queue_purge(&data->acl_q);
1878
1879 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1880 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1881 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1882 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1883
1884 btusb_stop_traffic(data);
1885 btusb_free_frags(data);
1886
1887 err = usb_autopm_get_interface(data->intf);
1888 if (err < 0)
1889 goto failed;
1890
1891 data->intf->needs_remote_wakeup = 0;
1892
1893 /* Enable remote wake up for auto-suspend */
1894 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1895 data->intf->needs_remote_wakeup = 1;
1896
1897 usb_autopm_put_interface(data->intf);
1898
1899failed:
1900 usb_scuttle_anchored_urbs(&data->deferred);
1901 return 0;
1902}
1903
1904static int btusb_flush(struct hci_dev *hdev)
1905{
1906 struct btusb_data *data = hci_get_drvdata(hdev);
1907
1908 BT_DBG("%s", hdev->name);
1909
1910 cancel_delayed_work(&data->rx_work);
1911
1912 skb_queue_purge(&data->acl_q);
1913
1914 usb_kill_anchored_urbs(&data->tx_anchor);
1915 btusb_free_frags(data);
1916
1917 return 0;
1918}
1919
1920static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1921{
1922 struct btusb_data *data = hci_get_drvdata(hdev);
1923 struct usb_ctrlrequest *dr;
1924 struct urb *urb;
1925 unsigned int pipe;
1926
1927 urb = usb_alloc_urb(0, GFP_KERNEL);
1928 if (!urb)
1929 return ERR_PTR(-ENOMEM);
1930
1931 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1932 if (!dr) {
1933 usb_free_urb(urb);
1934 return ERR_PTR(-ENOMEM);
1935 }
1936
1937 dr->bRequestType = data->cmdreq_type;
1938 dr->bRequest = data->cmdreq;
1939 dr->wIndex = 0;
1940 dr->wValue = 0;
1941 dr->wLength = __cpu_to_le16(skb->len);
1942
1943 pipe = usb_sndctrlpipe(data->udev, 0x00);
1944
1945 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1946 skb->data, skb->len, btusb_tx_complete, skb);
1947
1948 skb->dev = (void *)hdev;
1949
1950 return urb;
1951}
1952
1953static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1954{
1955 struct btusb_data *data = hci_get_drvdata(hdev);
1956 struct urb *urb;
1957 unsigned int pipe;
1958
1959 if (!data->bulk_tx_ep)
1960 return ERR_PTR(-ENODEV);
1961
1962 urb = usb_alloc_urb(0, GFP_KERNEL);
1963 if (!urb)
1964 return ERR_PTR(-ENOMEM);
1965
1966 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1967
1968 usb_fill_bulk_urb(urb, data->udev, pipe,
1969 skb->data, skb->len, btusb_tx_complete, skb);
1970
1971 skb->dev = (void *)hdev;
1972
1973 return urb;
1974}
1975
1976static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1977{
1978 struct btusb_data *data = hci_get_drvdata(hdev);
1979 struct urb *urb;
1980 unsigned int pipe;
1981
1982 if (!data->isoc_tx_ep)
1983 return ERR_PTR(-ENODEV);
1984
1985 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1986 if (!urb)
1987 return ERR_PTR(-ENOMEM);
1988
1989 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1990
1991 usb_fill_int_urb(urb, data->udev, pipe,
1992 skb->data, skb->len, btusb_isoc_tx_complete,
1993 skb, data->isoc_tx_ep->bInterval);
1994
1995 urb->transfer_flags = URB_ISO_ASAP;
1996
1997 if (data->isoc_altsetting == 6)
1998 __fill_isoc_descriptor_msbc(urb, skb->len,
1999 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2000 data);
2001 else
2002 __fill_isoc_descriptor(urb, skb->len,
2003 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2004 skb->dev = (void *)hdev;
2005
2006 return urb;
2007}
2008
2009static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2010{
2011 struct btusb_data *data = hci_get_drvdata(hdev);
2012 int err;
2013
2014 usb_anchor_urb(urb, &data->tx_anchor);
2015
2016 err = usb_submit_urb(urb, GFP_KERNEL);
2017 if (err < 0) {
2018 if (err != -EPERM && err != -ENODEV)
2019 bt_dev_err(hdev, "urb %p submission failed (%d)",
2020 urb, -err);
2021 kfree(urb->setup_packet);
2022 usb_unanchor_urb(urb);
2023 } else {
2024 usb_mark_last_busy(data->udev);
2025 }
2026
2027 usb_free_urb(urb);
2028 return err;
2029}
2030
2031static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2032{
2033 struct btusb_data *data = hci_get_drvdata(hdev);
2034 unsigned long flags;
2035 bool suspending;
2036
2037 spin_lock_irqsave(&data->txlock, flags);
2038 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2039 if (!suspending)
2040 data->tx_in_flight++;
2041 spin_unlock_irqrestore(&data->txlock, flags);
2042
2043 if (!suspending)
2044 return submit_tx_urb(hdev, urb);
2045
2046 usb_anchor_urb(urb, &data->deferred);
2047 schedule_work(&data->waker);
2048
2049 usb_free_urb(urb);
2050 return 0;
2051}
2052
2053static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2054{
2055 struct urb *urb;
2056
2057 BT_DBG("%s", hdev->name);
2058
2059 switch (hci_skb_pkt_type(skb)) {
2060 case HCI_COMMAND_PKT:
2061 urb = alloc_ctrl_urb(hdev, skb);
2062 if (IS_ERR(urb))
2063 return PTR_ERR(urb);
2064
2065 hdev->stat.cmd_tx++;
2066 return submit_or_queue_tx_urb(hdev, urb);
2067
2068 case HCI_ACLDATA_PKT:
2069 urb = alloc_bulk_urb(hdev, skb);
2070 if (IS_ERR(urb))
2071 return PTR_ERR(urb);
2072
2073 hdev->stat.acl_tx++;
2074 return submit_or_queue_tx_urb(hdev, urb);
2075
2076 case HCI_SCODATA_PKT:
2077 if (hci_conn_num(hdev, SCO_LINK) < 1)
2078 return -ENODEV;
2079
2080 urb = alloc_isoc_urb(hdev, skb);
2081 if (IS_ERR(urb))
2082 return PTR_ERR(urb);
2083
2084 hdev->stat.sco_tx++;
2085 return submit_tx_urb(hdev, urb);
2086
2087 case HCI_ISODATA_PKT:
2088 urb = alloc_bulk_urb(hdev, skb);
2089 if (IS_ERR(urb))
2090 return PTR_ERR(urb);
2091
2092 return submit_or_queue_tx_urb(hdev, urb);
2093 }
2094
2095 return -EILSEQ;
2096}
2097
2098static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2099{
2100 struct btusb_data *data = hci_get_drvdata(hdev);
2101
2102 BT_DBG("%s evt %d", hdev->name, evt);
2103
2104 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2105 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2106 data->air_mode = evt;
2107 schedule_work(&data->work);
2108 }
2109}
2110
2111static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2112{
2113 struct btusb_data *data = hci_get_drvdata(hdev);
2114 struct usb_interface *intf = data->isoc;
2115 struct usb_endpoint_descriptor *ep_desc;
2116 int i, err;
2117
2118 if (!data->isoc)
2119 return -ENODEV;
2120
2121 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2122 if (err < 0) {
2123 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2124 return err;
2125 }
2126
2127 data->isoc_altsetting = altsetting;
2128
2129 data->isoc_tx_ep = NULL;
2130 data->isoc_rx_ep = NULL;
2131
2132 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2133 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2134
2135 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2136 data->isoc_tx_ep = ep_desc;
2137 continue;
2138 }
2139
2140 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2141 data->isoc_rx_ep = ep_desc;
2142 continue;
2143 }
2144 }
2145
2146 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2147 bt_dev_err(hdev, "invalid SCO descriptors");
2148 return -ENODEV;
2149 }
2150
2151 return 0;
2152}
2153
2154static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2155{
2156 struct btusb_data *data = hci_get_drvdata(hdev);
2157 int err;
2158
2159 if (data->isoc_altsetting != new_alts) {
2160 unsigned long flags;
2161
2162 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2163 usb_kill_anchored_urbs(&data->isoc_anchor);
2164
2165 /* When isochronous alternate setting needs to be
2166 * changed, because SCO connection has been added
2167 * or removed, a packet fragment may be left in the
2168 * reassembling state. This could lead to wrongly
2169 * assembled fragments.
2170 *
2171 * Clear outstanding fragment when selecting a new
2172 * alternate setting.
2173 */
2174 spin_lock_irqsave(&data->rxlock, flags);
2175 dev_kfree_skb_irq(data->sco_skb);
2176 data->sco_skb = NULL;
2177 spin_unlock_irqrestore(&data->rxlock, flags);
2178
2179 err = __set_isoc_interface(hdev, new_alts);
2180 if (err < 0)
2181 return err;
2182 }
2183
2184 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2185 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2186 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2187 else
2188 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2189 }
2190
2191 return 0;
2192}
2193
2194static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2195 int alt)
2196{
2197 struct usb_interface *intf = data->isoc;
2198 int i;
2199
2200 BT_DBG("Looking for Alt no :%d", alt);
2201
2202 if (!intf)
2203 return NULL;
2204
2205 for (i = 0; i < intf->num_altsetting; i++) {
2206 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2207 return &intf->altsetting[i];
2208 }
2209
2210 return NULL;
2211}
2212
2213static void btusb_work(struct work_struct *work)
2214{
2215 struct btusb_data *data = container_of(work, struct btusb_data, work);
2216 struct hci_dev *hdev = data->hdev;
2217 int new_alts = 0;
2218 int err;
2219
2220 if (data->sco_num > 0) {
2221 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2222 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2223 if (err < 0) {
2224 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2225 usb_kill_anchored_urbs(&data->isoc_anchor);
2226 return;
2227 }
2228
2229 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2230 }
2231
2232 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2233 if (hdev->voice_setting & 0x0020) {
2234 static const int alts[3] = { 2, 4, 5 };
2235
2236 new_alts = alts[data->sco_num - 1];
2237 } else {
2238 new_alts = data->sco_num;
2239 }
2240 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2241 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2242 * many adapters do not support it. Alt 1 appears to
2243 * work for all adapters that do not have alt 6, and
2244 * which work with WBS at all. Some devices prefer
2245 * alt 3 (HCI payload >= 60 Bytes let air packet
2246 * data satisfy 60 bytes), requiring
2247 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2248 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2249 */
2250 if (btusb_find_altsetting(data, 6))
2251 new_alts = 6;
2252 else if (btusb_find_altsetting(data, 3) &&
2253 hdev->sco_mtu >= 72 &&
2254 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2255 new_alts = 3;
2256 else
2257 new_alts = 1;
2258 }
2259
2260 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2261 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2262 } else {
2263 usb_kill_anchored_urbs(&data->isoc_anchor);
2264
2265 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2266 __set_isoc_interface(hdev, 0);
2267
2268 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2269 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2270 }
2271}
2272
2273static void btusb_waker(struct work_struct *work)
2274{
2275 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2276 int err;
2277
2278 err = usb_autopm_get_interface(data->intf);
2279 if (err < 0)
2280 return;
2281
2282 usb_autopm_put_interface(data->intf);
2283}
2284
2285static void btusb_rx_work(struct work_struct *work)
2286{
2287 struct btusb_data *data = container_of(work, struct btusb_data,
2288 rx_work.work);
2289 struct sk_buff *skb;
2290
2291 /* Dequeue ACL data received during the interval */
2292 while ((skb = skb_dequeue(&data->acl_q)))
2293 data->recv_acl(data->hdev, skb);
2294}
2295
2296static int btusb_setup_bcm92035(struct hci_dev *hdev)
2297{
2298 struct sk_buff *skb;
2299 u8 val = 0x00;
2300
2301 BT_DBG("%s", hdev->name);
2302
2303 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2304 if (IS_ERR(skb))
2305 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2306 else
2307 kfree_skb(skb);
2308
2309 return 0;
2310}
2311
2312static int btusb_setup_csr(struct hci_dev *hdev)
2313{
2314 struct btusb_data *data = hci_get_drvdata(hdev);
2315 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2316 struct hci_rp_read_local_version *rp;
2317 struct sk_buff *skb;
2318 bool is_fake = false;
2319 int ret;
2320
2321 BT_DBG("%s", hdev->name);
2322
2323 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2324 HCI_INIT_TIMEOUT);
2325 if (IS_ERR(skb)) {
2326 int err = PTR_ERR(skb);
2327 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2328 return err;
2329 }
2330
2331 rp = skb_pull_data(skb, sizeof(*rp));
2332 if (!rp) {
2333 bt_dev_err(hdev, "CSR: Local version length mismatch");
2334 kfree_skb(skb);
2335 return -EIO;
2336 }
2337
2338 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2339 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2340
2341 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2342 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2343 le16_to_cpu(rp->manufacturer));
2344
2345 /* Detect a wide host of Chinese controllers that aren't CSR.
2346 *
2347 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2348 *
2349 * The main thing they have in common is that these are really popular low-cost
2350 * options that support newer Bluetooth versions but rely on heavy VID/PID
2351 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2352 *
2353 * We detect actual CSR devices by checking that the HCI manufacturer code
2354 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2355 * HCI rev values always match. As they both store the firmware number.
2356 */
2357 if (le16_to_cpu(rp->manufacturer) != 10 ||
2358 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2359 is_fake = true;
2360
2361 /* Known legit CSR firmware build numbers and their supported BT versions:
2362 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2363 * - 1.2 (0x2) -> 0x04d9, 0x0529
2364 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2365 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2366 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2367 *
2368 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2369 * support BT 1.1 only; so it's a dead giveaway when some
2370 * third-party BT 4.0 dongle reuses it.
2371 */
2372 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2373 rp->hci_ver > BLUETOOTH_VER_1_1)
2374 is_fake = true;
2375
2376 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2377 rp->hci_ver > BLUETOOTH_VER_1_2)
2378 is_fake = true;
2379
2380 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2381 rp->hci_ver > BLUETOOTH_VER_2_0)
2382 is_fake = true;
2383
2384 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2385 rp->hci_ver > BLUETOOTH_VER_2_1)
2386 is_fake = true;
2387
2388 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2389 rp->hci_ver > BLUETOOTH_VER_4_0)
2390 is_fake = true;
2391
2392 /* Other clones which beat all the above checks */
2393 else if (bcdDevice == 0x0134 &&
2394 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2395 rp->hci_ver == BLUETOOTH_VER_2_0)
2396 is_fake = true;
2397
2398 if (is_fake) {
2399 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2400
2401 /* Generally these clones have big discrepancies between
2402 * advertised features and what's actually supported.
2403 * Probably will need to be expanded in the future;
2404 * without these the controller will lock up.
2405 */
2406 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2407 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2408 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2409 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2410
2411 /* Clear the reset quirk since this is not an actual
2412 * early Bluetooth 1.1 device from CSR.
2413 */
2414 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2415 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2416
2417 /*
2418 * Special workaround for these BT 4.0 chip clones, and potentially more:
2419 *
2420 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2421 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2422 *
2423 * These controllers are really messed-up.
2424 *
2425 * 1. Their bulk RX endpoint will never report any data unless
2426 * the device was suspended at least once (yes, really).
2427 * 2. They will not wakeup when autosuspended and receiving data
2428 * on their bulk RX endpoint from e.g. a keyboard or mouse
2429 * (IOW remote-wakeup support is broken for the bulk endpoint).
2430 *
2431 * To fix 1. enable runtime-suspend, force-suspend the
2432 * HCI and then wake-it up by disabling runtime-suspend.
2433 *
2434 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2435 * will still be autosuspended when it is not open.
2436 *
2437 * --
2438 *
2439 * Because these are widespread problems we prefer generic solutions; so
2440 * apply this initialization quirk to every controller that gets here,
2441 * it should be harmless. The alternative is to not work at all.
2442 */
2443 pm_runtime_allow(&data->udev->dev);
2444
2445 ret = pm_runtime_suspend(&data->udev->dev);
2446 if (ret >= 0)
2447 msleep(200);
2448 else
2449 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2450
2451 pm_runtime_forbid(&data->udev->dev);
2452
2453 device_set_wakeup_capable(&data->udev->dev, false);
2454
2455 /* Re-enable autosuspend if this was requested */
2456 if (enable_autosuspend)
2457 usb_enable_autosuspend(data->udev);
2458 }
2459
2460 kfree_skb(skb);
2461
2462 return 0;
2463}
2464
2465static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2466{
2467 struct sk_buff *skb;
2468 struct hci_event_hdr *hdr;
2469 struct hci_ev_cmd_complete *evt;
2470
2471 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2472 if (!skb)
2473 return -ENOMEM;
2474
2475 hdr = skb_put(skb, sizeof(*hdr));
2476 hdr->evt = HCI_EV_CMD_COMPLETE;
2477 hdr->plen = sizeof(*evt) + 1;
2478
2479 evt = skb_put(skb, sizeof(*evt));
2480 evt->ncmd = 0x01;
2481 evt->opcode = cpu_to_le16(opcode);
2482
2483 skb_put_u8(skb, 0x00);
2484
2485 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2486
2487 return hci_recv_frame(hdev, skb);
2488}
2489
2490static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2491 int count)
2492{
2493 struct hci_dev *hdev = data->hdev;
2494
2495 /* When the device is in bootloader mode, then it can send
2496 * events via the bulk endpoint. These events are treated the
2497 * same way as the ones received from the interrupt endpoint.
2498 */
2499 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2500 return btusb_recv_intr(data, buffer, count);
2501
2502 return btusb_recv_bulk(data, buffer, count);
2503}
2504
2505static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2506{
2507 struct urb *urb;
2508
2509 BT_DBG("%s", hdev->name);
2510
2511 switch (hci_skb_pkt_type(skb)) {
2512 case HCI_COMMAND_PKT:
2513 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2514 struct hci_command_hdr *cmd = (void *)skb->data;
2515 __u16 opcode = le16_to_cpu(cmd->opcode);
2516
2517 /* When in bootloader mode and the command 0xfc09
2518 * is received, it needs to be send down the
2519 * bulk endpoint. So allocate a bulk URB instead.
2520 */
2521 if (opcode == 0xfc09)
2522 urb = alloc_bulk_urb(hdev, skb);
2523 else
2524 urb = alloc_ctrl_urb(hdev, skb);
2525
2526 /* When the 0xfc01 command is issued to boot into
2527 * the operational firmware, it will actually not
2528 * send a command complete event. To keep the flow
2529 * control working inject that event here.
2530 */
2531 if (opcode == 0xfc01)
2532 inject_cmd_complete(hdev, opcode);
2533 } else {
2534 urb = alloc_ctrl_urb(hdev, skb);
2535 }
2536 if (IS_ERR(urb))
2537 return PTR_ERR(urb);
2538
2539 hdev->stat.cmd_tx++;
2540 return submit_or_queue_tx_urb(hdev, urb);
2541
2542 case HCI_ACLDATA_PKT:
2543 urb = alloc_bulk_urb(hdev, skb);
2544 if (IS_ERR(urb))
2545 return PTR_ERR(urb);
2546
2547 hdev->stat.acl_tx++;
2548 return submit_or_queue_tx_urb(hdev, urb);
2549
2550 case HCI_SCODATA_PKT:
2551 if (hci_conn_num(hdev, SCO_LINK) < 1)
2552 return -ENODEV;
2553
2554 urb = alloc_isoc_urb(hdev, skb);
2555 if (IS_ERR(urb))
2556 return PTR_ERR(urb);
2557
2558 hdev->stat.sco_tx++;
2559 return submit_tx_urb(hdev, urb);
2560
2561 case HCI_ISODATA_PKT:
2562 urb = alloc_bulk_urb(hdev, skb);
2563 if (IS_ERR(urb))
2564 return PTR_ERR(urb);
2565
2566 return submit_or_queue_tx_urb(hdev, urb);
2567 }
2568
2569 return -EILSEQ;
2570}
2571
2572static int btusb_setup_realtek(struct hci_dev *hdev)
2573{
2574 struct btusb_data *data = hci_get_drvdata(hdev);
2575 int ret;
2576
2577 ret = btrtl_setup_realtek(hdev);
2578
2579 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2580 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2581
2582 return ret;
2583}
2584
2585static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2586{
2587 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2588 struct rtk_dev_coredump_hdr hdr = {
2589 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2590 };
2591
2592 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2593 skb->len);
2594
2595 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2596 kfree_skb(skb);
2597
2598 return 0;
2599 }
2600
2601 return hci_recv_frame(hdev, skb);
2602}
2603
2604/* UHW CR mapping */
2605#define MTK_BT_MISC 0x70002510
2606#define MTK_BT_SUBSYS_RST 0x70002610
2607#define MTK_UDMA_INT_STA_BT 0x74000024
2608#define MTK_UDMA_INT_STA_BT1 0x74000308
2609#define MTK_BT_WDT_STATUS 0x740003A0
2610#define MTK_EP_RST_OPT 0x74011890
2611#define MTK_EP_RST_IN_OUT_OPT 0x00010001
2612#define MTK_BT_RST_DONE 0x00000100
2613#define MTK_BT_RESET_REG_CONNV3 0x70028610
2614#define MTK_BT_READ_DEV_ID 0x70010200
2615
2616
2617static void btusb_mtk_wmt_recv(struct urb *urb)
2618{
2619 struct hci_dev *hdev = urb->context;
2620 struct btusb_data *data = hci_get_drvdata(hdev);
2621 struct sk_buff *skb;
2622 int err;
2623
2624 if (urb->status == 0 && urb->actual_length > 0) {
2625 hdev->stat.byte_rx += urb->actual_length;
2626
2627 /* WMT event shouldn't be fragmented and the size should be
2628 * less than HCI_WMT_MAX_EVENT_SIZE.
2629 */
2630 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2631 if (!skb) {
2632 hdev->stat.err_rx++;
2633 kfree(urb->setup_packet);
2634 return;
2635 }
2636
2637 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2638 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2639
2640 /* When someone waits for the WMT event, the skb is being cloned
2641 * and being processed the events from there then.
2642 */
2643 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2644 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2645 if (!data->evt_skb) {
2646 kfree_skb(skb);
2647 kfree(urb->setup_packet);
2648 return;
2649 }
2650 }
2651
2652 err = hci_recv_frame(hdev, skb);
2653 if (err < 0) {
2654 kfree_skb(data->evt_skb);
2655 data->evt_skb = NULL;
2656 kfree(urb->setup_packet);
2657 return;
2658 }
2659
2660 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2661 &data->flags)) {
2662 /* Barrier to sync with other CPUs */
2663 smp_mb__after_atomic();
2664 wake_up_bit(&data->flags,
2665 BTUSB_TX_WAIT_VND_EVT);
2666 }
2667 kfree(urb->setup_packet);
2668 return;
2669 } else if (urb->status == -ENOENT) {
2670 /* Avoid suspend failed when usb_kill_urb */
2671 return;
2672 }
2673
2674 usb_mark_last_busy(data->udev);
2675
2676 /* The URB complete handler is still called with urb->actual_length = 0
2677 * when the event is not available, so we should keep re-submitting
2678 * URB until WMT event returns, Also, It's necessary to wait some time
2679 * between the two consecutive control URBs to relax the target device
2680 * to generate the event. Otherwise, the WMT event cannot return from
2681 * the device successfully.
2682 */
2683 udelay(500);
2684
2685 usb_anchor_urb(urb, &data->ctrl_anchor);
2686 err = usb_submit_urb(urb, GFP_ATOMIC);
2687 if (err < 0) {
2688 kfree(urb->setup_packet);
2689 /* -EPERM: urb is being killed;
2690 * -ENODEV: device got disconnected
2691 */
2692 if (err != -EPERM && err != -ENODEV)
2693 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2694 urb, -err);
2695 usb_unanchor_urb(urb);
2696 }
2697}
2698
2699static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2700{
2701 struct btusb_data *data = hci_get_drvdata(hdev);
2702 struct usb_ctrlrequest *dr;
2703 unsigned char *buf;
2704 int err, size = 64;
2705 unsigned int pipe;
2706 struct urb *urb;
2707
2708 urb = usb_alloc_urb(0, GFP_KERNEL);
2709 if (!urb)
2710 return -ENOMEM;
2711
2712 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2713 if (!dr) {
2714 usb_free_urb(urb);
2715 return -ENOMEM;
2716 }
2717
2718 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2719 dr->bRequest = 1;
2720 dr->wIndex = cpu_to_le16(0);
2721 dr->wValue = cpu_to_le16(48);
2722 dr->wLength = cpu_to_le16(size);
2723
2724 buf = kmalloc(size, GFP_KERNEL);
2725 if (!buf) {
2726 kfree(dr);
2727 usb_free_urb(urb);
2728 return -ENOMEM;
2729 }
2730
2731 pipe = usb_rcvctrlpipe(data->udev, 0);
2732
2733 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2734 buf, size, btusb_mtk_wmt_recv, hdev);
2735
2736 urb->transfer_flags |= URB_FREE_BUFFER;
2737
2738 usb_anchor_urb(urb, &data->ctrl_anchor);
2739 err = usb_submit_urb(urb, GFP_KERNEL);
2740 if (err < 0) {
2741 if (err != -EPERM && err != -ENODEV)
2742 bt_dev_err(hdev, "urb %p submission failed (%d)",
2743 urb, -err);
2744 usb_unanchor_urb(urb);
2745 }
2746
2747 usb_free_urb(urb);
2748
2749 return err;
2750}
2751
2752static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2753 struct btmtk_hci_wmt_params *wmt_params)
2754{
2755 struct btusb_data *data = hci_get_drvdata(hdev);
2756 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2757 u32 hlen, status = BTMTK_WMT_INVALID;
2758 struct btmtk_hci_wmt_evt *wmt_evt;
2759 struct btmtk_hci_wmt_cmd *wc;
2760 struct btmtk_wmt_hdr *hdr;
2761 int err;
2762
2763 /* Send the WMT command and wait until the WMT event returns */
2764 hlen = sizeof(*hdr) + wmt_params->dlen;
2765 if (hlen > 255)
2766 return -EINVAL;
2767
2768 wc = kzalloc(hlen, GFP_KERNEL);
2769 if (!wc)
2770 return -ENOMEM;
2771
2772 hdr = &wc->hdr;
2773 hdr->dir = 1;
2774 hdr->op = wmt_params->op;
2775 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2776 hdr->flag = wmt_params->flag;
2777 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2778
2779 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2780
2781 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2782 * it needs constantly polling control pipe until the host received the
2783 * WMT event, thus, we should require to specifically acquire PM counter
2784 * on the USB to prevent the interface from entering auto suspended
2785 * while WMT cmd/event in progress.
2786 */
2787 err = usb_autopm_get_interface(data->intf);
2788 if (err < 0)
2789 goto err_free_wc;
2790
2791 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2792
2793 if (err < 0) {
2794 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2795 usb_autopm_put_interface(data->intf);
2796 goto err_free_wc;
2797 }
2798
2799 /* Submit control IN URB on demand to process the WMT event */
2800 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2801
2802 usb_autopm_put_interface(data->intf);
2803
2804 if (err < 0)
2805 goto err_free_wc;
2806
2807 /* The vendor specific WMT commands are all answered by a vendor
2808 * specific event and will have the Command Status or Command
2809 * Complete as with usual HCI command flow control.
2810 *
2811 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2812 * state to be cleared. The driver specific event receive routine
2813 * will clear that state and with that indicate completion of the
2814 * WMT command.
2815 */
2816 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2817 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2818 if (err == -EINTR) {
2819 bt_dev_err(hdev, "Execution of wmt command interrupted");
2820 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2821 goto err_free_wc;
2822 }
2823
2824 if (err) {
2825 bt_dev_err(hdev, "Execution of wmt command timed out");
2826 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2827 err = -ETIMEDOUT;
2828 goto err_free_wc;
2829 }
2830
2831 if (data->evt_skb == NULL)
2832 goto err_free_wc;
2833
2834 /* Parse and handle the return WMT event */
2835 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2836 if (wmt_evt->whdr.op != hdr->op) {
2837 bt_dev_err(hdev, "Wrong op received %d expected %d",
2838 wmt_evt->whdr.op, hdr->op);
2839 err = -EIO;
2840 goto err_free_skb;
2841 }
2842
2843 switch (wmt_evt->whdr.op) {
2844 case BTMTK_WMT_SEMAPHORE:
2845 if (wmt_evt->whdr.flag == 2)
2846 status = BTMTK_WMT_PATCH_UNDONE;
2847 else
2848 status = BTMTK_WMT_PATCH_DONE;
2849 break;
2850 case BTMTK_WMT_FUNC_CTRL:
2851 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2852 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2853 status = BTMTK_WMT_ON_DONE;
2854 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2855 status = BTMTK_WMT_ON_PROGRESS;
2856 else
2857 status = BTMTK_WMT_ON_UNDONE;
2858 break;
2859 case BTMTK_WMT_PATCH_DWNLD:
2860 if (wmt_evt->whdr.flag == 2)
2861 status = BTMTK_WMT_PATCH_DONE;
2862 else if (wmt_evt->whdr.flag == 1)
2863 status = BTMTK_WMT_PATCH_PROGRESS;
2864 else
2865 status = BTMTK_WMT_PATCH_UNDONE;
2866 break;
2867 }
2868
2869 if (wmt_params->status)
2870 *wmt_params->status = status;
2871
2872err_free_skb:
2873 kfree_skb(data->evt_skb);
2874 data->evt_skb = NULL;
2875err_free_wc:
2876 kfree(wc);
2877 return err;
2878}
2879
2880static int btusb_mtk_func_query(struct hci_dev *hdev)
2881{
2882 struct btmtk_hci_wmt_params wmt_params;
2883 int status, err;
2884 u8 param = 0;
2885
2886 /* Query whether the function is enabled */
2887 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2888 wmt_params.flag = 4;
2889 wmt_params.dlen = sizeof(param);
2890 wmt_params.data = ¶m;
2891 wmt_params.status = &status;
2892
2893 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2894 if (err < 0) {
2895 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2896 return err;
2897 }
2898
2899 return status;
2900}
2901
2902static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2903{
2904 struct hci_dev *hdev = data->hdev;
2905 int pipe, err;
2906 void *buf;
2907
2908 buf = kzalloc(4, GFP_KERNEL);
2909 if (!buf)
2910 return -ENOMEM;
2911
2912 put_unaligned_le32(val, buf);
2913
2914 pipe = usb_sndctrlpipe(data->udev, 0);
2915 err = usb_control_msg(data->udev, pipe, 0x02,
2916 0x5E,
2917 reg >> 16, reg & 0xffff,
2918 buf, 4, USB_CTRL_SET_TIMEOUT);
2919 if (err < 0) {
2920 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2921 goto err_free_buf;
2922 }
2923
2924err_free_buf:
2925 kfree(buf);
2926
2927 return err;
2928}
2929
2930static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2931{
2932 struct hci_dev *hdev = data->hdev;
2933 int pipe, err;
2934 void *buf;
2935
2936 buf = kzalloc(4, GFP_KERNEL);
2937 if (!buf)
2938 return -ENOMEM;
2939
2940 pipe = usb_rcvctrlpipe(data->udev, 0);
2941 err = usb_control_msg(data->udev, pipe, 0x01,
2942 0xDE,
2943 reg >> 16, reg & 0xffff,
2944 buf, 4, USB_CTRL_SET_TIMEOUT);
2945 if (err < 0) {
2946 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2947 goto err_free_buf;
2948 }
2949
2950 *val = get_unaligned_le32(buf);
2951 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2952
2953err_free_buf:
2954 kfree(buf);
2955
2956 return err;
2957}
2958
2959static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2960{
2961 int pipe, err, size = sizeof(u32);
2962 void *buf;
2963
2964 buf = kzalloc(size, GFP_KERNEL);
2965 if (!buf)
2966 return -ENOMEM;
2967
2968 pipe = usb_rcvctrlpipe(data->udev, 0);
2969 err = usb_control_msg(data->udev, pipe, 0x63,
2970 USB_TYPE_VENDOR | USB_DIR_IN,
2971 reg >> 16, reg & 0xffff,
2972 buf, size, USB_CTRL_SET_TIMEOUT);
2973 if (err < 0)
2974 goto err_free_buf;
2975
2976 *val = get_unaligned_le32(buf);
2977
2978err_free_buf:
2979 kfree(buf);
2980
2981 return err;
2982}
2983
2984static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2985{
2986 return btusb_mtk_reg_read(data, reg, id);
2987}
2988
2989static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
2990{
2991 struct btusb_data *data = hci_get_drvdata(hdev);
2992 u32 val = 0;
2993
2994 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
2995
2996 return val & MTK_BT_RST_DONE;
2997}
2998
2999static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3000{
3001 struct btusb_data *data = hci_get_drvdata(hdev);
3002 struct btmediatek_data *mediatek;
3003 u32 val;
3004 int err;
3005
3006 /* It's MediaTek specific bluetooth reset mechanism via USB */
3007 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3008 bt_dev_err(hdev, "last reset failed? Not resetting again");
3009 return -EBUSY;
3010 }
3011
3012 err = usb_autopm_get_interface(data->intf);
3013 if (err < 0)
3014 return err;
3015
3016 btusb_stop_traffic(data);
3017 usb_kill_anchored_urbs(&data->tx_anchor);
3018 mediatek = hci_get_priv(hdev);
3019
3020 if (mediatek->dev_id == 0x7925) {
3021 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3022 val |= (1 << 5);
3023 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3024 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3025 val &= 0xFFFF00FF;
3026 val |= (1 << 13);
3027 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3028 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3029 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3030 val |= (1 << 0);
3031 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3032 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3033 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3034 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3035 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3036 msleep(100);
3037 } else {
3038 /* It's Device EndPoint Reset Option Register */
3039 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3040 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3041 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3042
3043 /* Reset the bluetooth chip via USB interface. */
3044 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3045 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3046 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3047 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3048 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3049 /* MT7921 need to delay 20ms between toggle reset bit */
3050 msleep(20);
3051 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3052 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3053 }
3054
3055 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3056 val & MTK_BT_RST_DONE, 20000, 1000000);
3057 if (err < 0)
3058 bt_dev_err(hdev, "Reset timeout");
3059
3060 btusb_mtk_id_get(data, 0x70010200, &val);
3061 if (!val)
3062 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3063
3064 usb_queue_reset_device(data->intf);
3065
3066 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3067
3068 return err;
3069}
3070
3071static int btusb_mtk_setup(struct hci_dev *hdev)
3072{
3073 struct btusb_data *data = hci_get_drvdata(hdev);
3074 struct btmtk_hci_wmt_params wmt_params;
3075 ktime_t calltime, delta, rettime;
3076 struct btmtk_tci_sleep tci_sleep;
3077 unsigned long long duration;
3078 struct sk_buff *skb;
3079 const char *fwname;
3080 int err, status;
3081 u32 dev_id = 0;
3082 char fw_bin_name[64];
3083 u32 fw_version = 0;
3084 u8 param;
3085 struct btmediatek_data *mediatek;
3086
3087 calltime = ktime_get();
3088
3089 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3090 if (err < 0) {
3091 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3092 return err;
3093 }
3094
3095 if (!dev_id || dev_id != 0x7663) {
3096 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3097 if (err < 0) {
3098 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3099 return err;
3100 }
3101 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3102 if (err < 0) {
3103 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3104 return err;
3105 }
3106 }
3107
3108 mediatek = hci_get_priv(hdev);
3109 mediatek->dev_id = dev_id;
3110 mediatek->reset_sync = btusb_mtk_reset;
3111
3112 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3113 if (err < 0)
3114 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3115
3116 switch (dev_id) {
3117 case 0x7663:
3118 fwname = FIRMWARE_MT7663;
3119 break;
3120 case 0x7668:
3121 fwname = FIRMWARE_MT7668;
3122 break;
3123 case 0x7922:
3124 case 0x7961:
3125 case 0x7925:
3126 if (dev_id == 0x7925)
3127 snprintf(fw_bin_name, sizeof(fw_bin_name),
3128 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3129 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3130 else
3131 snprintf(fw_bin_name, sizeof(fw_bin_name),
3132 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3133 dev_id & 0xffff, (fw_version & 0xff) + 1);
3134
3135 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3136 btusb_mtk_hci_wmt_sync);
3137 if (err < 0) {
3138 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3139 return err;
3140 }
3141
3142 /* It's Device EndPoint Reset Option Register */
3143 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3144
3145 /* Enable Bluetooth protocol */
3146 param = 1;
3147 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3148 wmt_params.flag = 0;
3149 wmt_params.dlen = sizeof(param);
3150 wmt_params.data = ¶m;
3151 wmt_params.status = NULL;
3152
3153 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3154 if (err < 0) {
3155 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3156 return err;
3157 }
3158
3159 hci_set_msft_opcode(hdev, 0xFD30);
3160 hci_set_aosp_capable(hdev);
3161 goto done;
3162 default:
3163 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3164 dev_id);
3165 return -ENODEV;
3166 }
3167
3168 /* Query whether the firmware is already download */
3169 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3170 wmt_params.flag = 1;
3171 wmt_params.dlen = 0;
3172 wmt_params.data = NULL;
3173 wmt_params.status = &status;
3174
3175 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3176 if (err < 0) {
3177 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3178 return err;
3179 }
3180
3181 if (status == BTMTK_WMT_PATCH_DONE) {
3182 bt_dev_info(hdev, "firmware already downloaded");
3183 goto ignore_setup_fw;
3184 }
3185
3186 /* Setup a firmware which the device definitely requires */
3187 err = btmtk_setup_firmware(hdev, fwname,
3188 btusb_mtk_hci_wmt_sync);
3189 if (err < 0)
3190 return err;
3191
3192ignore_setup_fw:
3193 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3194 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3195 2000, 5000000);
3196 /* -ETIMEDOUT happens */
3197 if (err < 0)
3198 return err;
3199
3200 /* The other errors happen in btusb_mtk_func_query */
3201 if (status < 0)
3202 return status;
3203
3204 if (status == BTMTK_WMT_ON_DONE) {
3205 bt_dev_info(hdev, "function already on");
3206 goto ignore_func_on;
3207 }
3208
3209 /* Enable Bluetooth protocol */
3210 param = 1;
3211 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3212 wmt_params.flag = 0;
3213 wmt_params.dlen = sizeof(param);
3214 wmt_params.data = ¶m;
3215 wmt_params.status = NULL;
3216
3217 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3218 if (err < 0) {
3219 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3220 return err;
3221 }
3222
3223ignore_func_on:
3224 /* Apply the low power environment setup */
3225 tci_sleep.mode = 0x5;
3226 tci_sleep.duration = cpu_to_le16(0x640);
3227 tci_sleep.host_duration = cpu_to_le16(0x640);
3228 tci_sleep.host_wakeup_pin = 0;
3229 tci_sleep.time_compensation = 0;
3230
3231 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3232 HCI_INIT_TIMEOUT);
3233 if (IS_ERR(skb)) {
3234 err = PTR_ERR(skb);
3235 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3236 return err;
3237 }
3238 kfree_skb(skb);
3239
3240done:
3241 rettime = ktime_get();
3242 delta = ktime_sub(rettime, calltime);
3243 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3244
3245 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3246
3247 return 0;
3248}
3249
3250static int btusb_mtk_shutdown(struct hci_dev *hdev)
3251{
3252 struct btmtk_hci_wmt_params wmt_params;
3253 u8 param = 0;
3254 int err;
3255
3256 /* Disable the device */
3257 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3258 wmt_params.flag = 0;
3259 wmt_params.dlen = sizeof(param);
3260 wmt_params.data = ¶m;
3261 wmt_params.status = NULL;
3262
3263 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3264 if (err < 0) {
3265 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3266 return err;
3267 }
3268
3269 return 0;
3270}
3271
3272static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3273{
3274 struct btusb_data *data = hci_get_drvdata(hdev);
3275 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3276 struct sk_buff *skb_cd;
3277
3278 switch (handle) {
3279 case 0xfc6f: /* Firmware dump from device */
3280 /* When the firmware hangs, the device can no longer
3281 * suspend and thus disable auto-suspend.
3282 */
3283 usb_disable_autosuspend(data->udev);
3284
3285 /* We need to forward the diagnostic packet to userspace daemon
3286 * for backward compatibility, so we have to clone the packet
3287 * extraly for the in-kernel coredump support.
3288 */
3289 skb_cd = skb_clone(skb, GFP_ATOMIC);
3290 if (skb_cd)
3291 btmtk_process_coredump(hdev, skb_cd);
3292
3293 fallthrough;
3294 case 0x05ff: /* Firmware debug logging 1 */
3295 case 0x05fe: /* Firmware debug logging 2 */
3296 return hci_recv_diag(hdev, skb);
3297 }
3298
3299 return hci_recv_frame(hdev, skb);
3300}
3301
3302#ifdef CONFIG_PM
3303/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3304static int marvell_config_oob_wake(struct hci_dev *hdev)
3305{
3306 struct sk_buff *skb;
3307 struct btusb_data *data = hci_get_drvdata(hdev);
3308 struct device *dev = &data->udev->dev;
3309 u16 pin, gap, opcode;
3310 int ret;
3311 u8 cmd[5];
3312
3313 /* Move on if no wakeup pin specified */
3314 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3315 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3316 return 0;
3317
3318 /* Vendor specific command to configure a GPIO as wake-up pin */
3319 opcode = hci_opcode_pack(0x3F, 0x59);
3320 cmd[0] = opcode & 0xFF;
3321 cmd[1] = opcode >> 8;
3322 cmd[2] = 2; /* length of parameters that follow */
3323 cmd[3] = pin;
3324 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3325
3326 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3327 if (!skb) {
3328 bt_dev_err(hdev, "%s: No memory", __func__);
3329 return -ENOMEM;
3330 }
3331
3332 skb_put_data(skb, cmd, sizeof(cmd));
3333 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3334
3335 ret = btusb_send_frame(hdev, skb);
3336 if (ret) {
3337 bt_dev_err(hdev, "%s: configuration failed", __func__);
3338 kfree_skb(skb);
3339 return ret;
3340 }
3341
3342 return 0;
3343}
3344#endif
3345
3346static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3347 const bdaddr_t *bdaddr)
3348{
3349 struct sk_buff *skb;
3350 u8 buf[8];
3351 long ret;
3352
3353 buf[0] = 0xfe;
3354 buf[1] = sizeof(bdaddr_t);
3355 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3356
3357 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3358 if (IS_ERR(skb)) {
3359 ret = PTR_ERR(skb);
3360 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3361 ret);
3362 return ret;
3363 }
3364 kfree_skb(skb);
3365
3366 return 0;
3367}
3368
3369static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3370 const bdaddr_t *bdaddr)
3371{
3372 struct sk_buff *skb;
3373 u8 buf[10];
3374 long ret;
3375
3376 buf[0] = 0x01;
3377 buf[1] = 0x01;
3378 buf[2] = 0x00;
3379 buf[3] = sizeof(bdaddr_t);
3380 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3381
3382 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3383 if (IS_ERR(skb)) {
3384 ret = PTR_ERR(skb);
3385 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3386 return ret;
3387 }
3388 kfree_skb(skb);
3389
3390 return 0;
3391}
3392
3393static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3394 const bdaddr_t *bdaddr)
3395{
3396 struct sk_buff *skb;
3397 u8 buf[6];
3398 long ret;
3399
3400 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3401
3402 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3403 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3404 if (IS_ERR(skb)) {
3405 ret = PTR_ERR(skb);
3406 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3407 return ret;
3408 }
3409 kfree_skb(skb);
3410
3411 return 0;
3412}
3413
3414#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3415#define QCA_MEMDUMP_SIZE_MAX 0x100000
3416#define QCA_MEMDUMP_VSE_CLASS 0x01
3417#define QCA_MEMDUMP_MSG_TYPE 0x08
3418#define QCA_MEMDUMP_PKT_SIZE 248
3419#define QCA_LAST_SEQUENCE_NUM 0xffff
3420
3421struct qca_dump_hdr {
3422 u8 vse_class;
3423 u8 msg_type;
3424 __le16 seqno;
3425 u8 reserved;
3426 union {
3427 u8 data[0];
3428 struct {
3429 __le32 ram_dump_size;
3430 u8 data0[0];
3431 } __packed;
3432 };
3433} __packed;
3434
3435
3436static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3437{
3438 char buf[128];
3439 struct btusb_data *btdata = hci_get_drvdata(hdev);
3440
3441 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3442 btdata->qca_dump.controller_id);
3443 skb_put_data(skb, buf, strlen(buf));
3444
3445 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3446 btdata->qca_dump.fw_version);
3447 skb_put_data(skb, buf, strlen(buf));
3448
3449 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3450 btusb_driver.name);
3451 skb_put_data(skb, buf, strlen(buf));
3452
3453 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3454 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3455 skb_put_data(skb, buf, strlen(buf));
3456
3457 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3458 hdev->lmp_subver);
3459 skb_put_data(skb, buf, strlen(buf));
3460}
3461
3462static void btusb_coredump_qca(struct hci_dev *hdev)
3463{
3464 static const u8 param[] = { 0x26 };
3465 struct sk_buff *skb;
3466
3467 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3468 if (IS_ERR(skb))
3469 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3470 kfree_skb(skb);
3471}
3472
3473/*
3474 * ==0: not a dump pkt.
3475 * < 0: fails to handle a dump pkt
3476 * > 0: otherwise.
3477 */
3478static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3479{
3480 int ret = 1;
3481 u8 pkt_type;
3482 u8 *sk_ptr;
3483 unsigned int sk_len;
3484 u16 seqno;
3485 u32 dump_size;
3486
3487 struct hci_event_hdr *event_hdr;
3488 struct hci_acl_hdr *acl_hdr;
3489 struct qca_dump_hdr *dump_hdr;
3490 struct btusb_data *btdata = hci_get_drvdata(hdev);
3491 struct usb_device *udev = btdata->udev;
3492
3493 pkt_type = hci_skb_pkt_type(skb);
3494 sk_ptr = skb->data;
3495 sk_len = skb->len;
3496
3497 if (pkt_type == HCI_ACLDATA_PKT) {
3498 acl_hdr = hci_acl_hdr(skb);
3499 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3500 return 0;
3501 sk_ptr += HCI_ACL_HDR_SIZE;
3502 sk_len -= HCI_ACL_HDR_SIZE;
3503 event_hdr = (struct hci_event_hdr *)sk_ptr;
3504 } else {
3505 event_hdr = hci_event_hdr(skb);
3506 }
3507
3508 if ((event_hdr->evt != HCI_VENDOR_PKT)
3509 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3510 return 0;
3511
3512 sk_ptr += HCI_EVENT_HDR_SIZE;
3513 sk_len -= HCI_EVENT_HDR_SIZE;
3514
3515 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3516 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3517 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3518 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3519 return 0;
3520
3521 /*it is dump pkt now*/
3522 seqno = le16_to_cpu(dump_hdr->seqno);
3523 if (seqno == 0) {
3524 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3525 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3526 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3527 ret = -EILSEQ;
3528 bt_dev_err(hdev, "Invalid memdump size(%u)",
3529 dump_size);
3530 goto out;
3531 }
3532
3533 ret = hci_devcd_init(hdev, dump_size);
3534 if (ret < 0) {
3535 bt_dev_err(hdev, "memdump init error(%d)", ret);
3536 goto out;
3537 }
3538
3539 btdata->qca_dump.ram_dump_size = dump_size;
3540 btdata->qca_dump.ram_dump_seqno = 0;
3541 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3542 sk_len -= offsetof(struct qca_dump_hdr, data0);
3543
3544 usb_disable_autosuspend(udev);
3545 bt_dev_info(hdev, "%s memdump size(%u)\n",
3546 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3547 dump_size);
3548 } else {
3549 sk_ptr += offsetof(struct qca_dump_hdr, data);
3550 sk_len -= offsetof(struct qca_dump_hdr, data);
3551 }
3552
3553 if (!btdata->qca_dump.ram_dump_size) {
3554 ret = -EINVAL;
3555 bt_dev_err(hdev, "memdump is not active");
3556 goto out;
3557 }
3558
3559 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3560 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3561 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3562 bt_dev_err(hdev,
3563 "expected memdump seqno(%u) is not received(%u)\n",
3564 btdata->qca_dump.ram_dump_seqno, seqno);
3565 btdata->qca_dump.ram_dump_seqno = seqno;
3566 kfree_skb(skb);
3567 return ret;
3568 }
3569
3570 skb_pull(skb, skb->len - sk_len);
3571 hci_devcd_append(hdev, skb);
3572 btdata->qca_dump.ram_dump_seqno++;
3573 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3574 bt_dev_info(hdev,
3575 "memdump done: pkts(%u), total(%u)\n",
3576 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3577
3578 hci_devcd_complete(hdev);
3579 goto out;
3580 }
3581 return ret;
3582
3583out:
3584 if (btdata->qca_dump.ram_dump_size)
3585 usb_enable_autosuspend(udev);
3586 btdata->qca_dump.ram_dump_size = 0;
3587 btdata->qca_dump.ram_dump_seqno = 0;
3588 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3589
3590 if (ret < 0)
3591 kfree_skb(skb);
3592 return ret;
3593}
3594
3595static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3596{
3597 if (handle_dump_pkt_qca(hdev, skb))
3598 return 0;
3599 return hci_recv_frame(hdev, skb);
3600}
3601
3602static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3603{
3604 if (handle_dump_pkt_qca(hdev, skb))
3605 return 0;
3606 return hci_recv_frame(hdev, skb);
3607}
3608
3609
3610#define QCA_DFU_PACKET_LEN 4096
3611
3612#define QCA_GET_TARGET_VERSION 0x09
3613#define QCA_CHECK_STATUS 0x05
3614#define QCA_DFU_DOWNLOAD 0x01
3615
3616#define QCA_SYSCFG_UPDATED 0x40
3617#define QCA_PATCH_UPDATED 0x80
3618#define QCA_DFU_TIMEOUT 3000
3619#define QCA_FLAG_MULTI_NVM 0x80
3620#define QCA_BT_RESET_WAIT_MS 100
3621
3622#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3623#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3624
3625struct qca_version {
3626 __le32 rom_version;
3627 __le32 patch_version;
3628 __le32 ram_version;
3629 __u8 chip_id;
3630 __u8 platform_id;
3631 __le16 flag;
3632 __u8 reserved[4];
3633} __packed;
3634
3635struct qca_rampatch_version {
3636 __le16 rom_version_high;
3637 __le16 rom_version_low;
3638 __le16 patch_version;
3639} __packed;
3640
3641struct qca_device_info {
3642 u32 rom_version;
3643 u8 rampatch_hdr; /* length of header in rampatch */
3644 u8 nvm_hdr; /* length of header in NVM */
3645 u8 ver_offset; /* offset of version structure in rampatch */
3646};
3647
3648static const struct qca_device_info qca_devices_table[] = {
3649 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3650 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3651 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3652 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3653 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3654 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3655 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3656 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3657 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3658 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3659};
3660
3661static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3662 void *data, u16 size)
3663{
3664 int pipe, err;
3665 u8 *buf;
3666
3667 buf = kmalloc(size, GFP_KERNEL);
3668 if (!buf)
3669 return -ENOMEM;
3670
3671 /* Found some of USB hosts have IOT issues with ours so that we should
3672 * not wait until HCI layer is ready.
3673 */
3674 pipe = usb_rcvctrlpipe(udev, 0);
3675 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3676 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3677 if (err < 0) {
3678 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3679 goto done;
3680 }
3681
3682 memcpy(data, buf, size);
3683
3684done:
3685 kfree(buf);
3686
3687 return err;
3688}
3689
3690static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3691 const struct firmware *firmware,
3692 size_t hdr_size)
3693{
3694 struct btusb_data *btdata = hci_get_drvdata(hdev);
3695 struct usb_device *udev = btdata->udev;
3696 size_t count, size, sent = 0;
3697 int pipe, len, err;
3698 u8 *buf;
3699
3700 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3701 if (!buf)
3702 return -ENOMEM;
3703
3704 count = firmware->size;
3705
3706 size = min_t(size_t, count, hdr_size);
3707 memcpy(buf, firmware->data, size);
3708
3709 /* USB patches should go down to controller through USB path
3710 * because binary format fits to go down through USB channel.
3711 * USB control path is for patching headers and USB bulk is for
3712 * patch body.
3713 */
3714 pipe = usb_sndctrlpipe(udev, 0);
3715 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3716 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3717 if (err < 0) {
3718 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3719 goto done;
3720 }
3721
3722 sent += size;
3723 count -= size;
3724
3725 /* ep2 need time to switch from function acl to function dfu,
3726 * so we add 20ms delay here.
3727 */
3728 msleep(20);
3729
3730 while (count) {
3731 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3732
3733 memcpy(buf, firmware->data + sent, size);
3734
3735 pipe = usb_sndbulkpipe(udev, 0x02);
3736 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3737 QCA_DFU_TIMEOUT);
3738 if (err < 0) {
3739 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3740 sent, firmware->size, err);
3741 break;
3742 }
3743
3744 if (size != len) {
3745 bt_dev_err(hdev, "Failed to get bulk buffer");
3746 err = -EILSEQ;
3747 break;
3748 }
3749
3750 sent += size;
3751 count -= size;
3752 }
3753
3754done:
3755 kfree(buf);
3756 return err;
3757}
3758
3759static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3760 struct qca_version *ver,
3761 const struct qca_device_info *info)
3762{
3763 struct qca_rampatch_version *rver;
3764 const struct firmware *fw;
3765 u32 ver_rom, ver_patch, rver_rom;
3766 u16 rver_rom_low, rver_rom_high, rver_patch;
3767 char fwname[64];
3768 int err;
3769
3770 ver_rom = le32_to_cpu(ver->rom_version);
3771 ver_patch = le32_to_cpu(ver->patch_version);
3772
3773 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3774
3775 err = request_firmware(&fw, fwname, &hdev->dev);
3776 if (err) {
3777 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3778 fwname, err);
3779 return err;
3780 }
3781
3782 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3783
3784 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3785 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3786 rver_patch = le16_to_cpu(rver->patch_version);
3787
3788 if (ver_rom & ~0xffffU) {
3789 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3790 rver_rom = rver_rom_high << 16 | rver_rom_low;
3791 } else {
3792 rver_rom = rver_rom_low;
3793 }
3794
3795 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3796 "firmware rome 0x%x build 0x%x",
3797 rver_rom, rver_patch, ver_rom, ver_patch);
3798
3799 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3800 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3801 err = -EINVAL;
3802 goto done;
3803 }
3804
3805 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3806
3807done:
3808 release_firmware(fw);
3809
3810 return err;
3811}
3812
3813static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3814 const struct qca_version *ver)
3815{
3816 u32 rom_version = le32_to_cpu(ver->rom_version);
3817 u16 flag = le16_to_cpu(ver->flag);
3818
3819 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3820 /* The board_id should be split into two bytes
3821 * The 1st byte is chip ID, and the 2nd byte is platform ID
3822 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3823 * we have several platforms, and platform IDs are continuously added
3824 * Platform ID:
3825 * 0x00 is for Mobile
3826 * 0x01 is for X86
3827 * 0x02 is for Automotive
3828 * 0x03 is for Consumer electronic
3829 */
3830 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3831 const char *variant;
3832
3833 switch (le32_to_cpu(ver->ram_version)) {
3834 case WCN6855_2_0_RAM_VERSION_GF:
3835 case WCN6855_2_1_RAM_VERSION_GF:
3836 variant = "_gf";
3837 break;
3838 default:
3839 variant = "";
3840 break;
3841 }
3842
3843 if (board_id == 0) {
3844 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3845 rom_version, variant);
3846 } else {
3847 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3848 rom_version, variant, board_id);
3849 }
3850 } else {
3851 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3852 rom_version);
3853 }
3854
3855}
3856
3857static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3858 struct qca_version *ver,
3859 const struct qca_device_info *info)
3860{
3861 const struct firmware *fw;
3862 char fwname[64];
3863 int err;
3864
3865 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3866
3867 err = request_firmware(&fw, fwname, &hdev->dev);
3868 if (err) {
3869 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3870 fwname, err);
3871 return err;
3872 }
3873
3874 bt_dev_info(hdev, "using NVM file: %s", fwname);
3875
3876 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3877
3878 release_firmware(fw);
3879
3880 return err;
3881}
3882
3883/* identify the ROM version and check whether patches are needed */
3884static bool btusb_qca_need_patch(struct usb_device *udev)
3885{
3886 struct qca_version ver;
3887
3888 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3889 sizeof(ver)) < 0)
3890 return false;
3891 /* only low ROM versions need patches */
3892 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3893}
3894
3895static int btusb_setup_qca(struct hci_dev *hdev)
3896{
3897 struct btusb_data *btdata = hci_get_drvdata(hdev);
3898 struct usb_device *udev = btdata->udev;
3899 const struct qca_device_info *info = NULL;
3900 struct qca_version ver;
3901 u32 ver_rom;
3902 u8 status;
3903 int i, err;
3904
3905 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3906 sizeof(ver));
3907 if (err < 0)
3908 return err;
3909
3910 ver_rom = le32_to_cpu(ver.rom_version);
3911
3912 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3913 if (ver_rom == qca_devices_table[i].rom_version)
3914 info = &qca_devices_table[i];
3915 }
3916 if (!info) {
3917 /* If the rom_version is not matched in the qca_devices_table
3918 * and the high ROM version is not zero, we assume this chip no
3919 * need to load the rampatch and nvm.
3920 */
3921 if (ver_rom & ~0xffffU)
3922 return 0;
3923
3924 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3925 return -ENODEV;
3926 }
3927
3928 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3929 sizeof(status));
3930 if (err < 0)
3931 return err;
3932
3933 if (!(status & QCA_PATCH_UPDATED)) {
3934 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3935 if (err < 0)
3936 return err;
3937 }
3938
3939 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3940 sizeof(ver));
3941 if (err < 0)
3942 return err;
3943
3944 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3945 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3946
3947 if (!(status & QCA_SYSCFG_UPDATED)) {
3948 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3949 if (err < 0)
3950 return err;
3951
3952 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3953 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3954 * cause potential enable failure.
3955 */
3956 if (info->rom_version >= 0x00130201)
3957 msleep(QCA_BT_RESET_WAIT_MS);
3958 }
3959
3960 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3961 * work with the likes of HSP/HFP mSBC.
3962 */
3963 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3964
3965 return 0;
3966}
3967
3968static inline int __set_diag_interface(struct hci_dev *hdev)
3969{
3970 struct btusb_data *data = hci_get_drvdata(hdev);
3971 struct usb_interface *intf = data->diag;
3972 int i;
3973
3974 if (!data->diag)
3975 return -ENODEV;
3976
3977 data->diag_tx_ep = NULL;
3978 data->diag_rx_ep = NULL;
3979
3980 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3981 struct usb_endpoint_descriptor *ep_desc;
3982
3983 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3984
3985 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3986 data->diag_tx_ep = ep_desc;
3987 continue;
3988 }
3989
3990 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3991 data->diag_rx_ep = ep_desc;
3992 continue;
3993 }
3994 }
3995
3996 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3997 bt_dev_err(hdev, "invalid diagnostic descriptors");
3998 return -ENODEV;
3999 }
4000
4001 return 0;
4002}
4003
4004static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4005{
4006 struct btusb_data *data = hci_get_drvdata(hdev);
4007 struct sk_buff *skb;
4008 struct urb *urb;
4009 unsigned int pipe;
4010
4011 if (!data->diag_tx_ep)
4012 return ERR_PTR(-ENODEV);
4013
4014 urb = usb_alloc_urb(0, GFP_KERNEL);
4015 if (!urb)
4016 return ERR_PTR(-ENOMEM);
4017
4018 skb = bt_skb_alloc(2, GFP_KERNEL);
4019 if (!skb) {
4020 usb_free_urb(urb);
4021 return ERR_PTR(-ENOMEM);
4022 }
4023
4024 skb_put_u8(skb, 0xf0);
4025 skb_put_u8(skb, enable);
4026
4027 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4028
4029 usb_fill_bulk_urb(urb, data->udev, pipe,
4030 skb->data, skb->len, btusb_tx_complete, skb);
4031
4032 skb->dev = (void *)hdev;
4033
4034 return urb;
4035}
4036
4037static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4038{
4039 struct btusb_data *data = hci_get_drvdata(hdev);
4040 struct urb *urb;
4041
4042 if (!data->diag)
4043 return -ENODEV;
4044
4045 if (!test_bit(HCI_RUNNING, &hdev->flags))
4046 return -ENETDOWN;
4047
4048 urb = alloc_diag_urb(hdev, enable);
4049 if (IS_ERR(urb))
4050 return PTR_ERR(urb);
4051
4052 return submit_or_queue_tx_urb(hdev, urb);
4053}
4054
4055#ifdef CONFIG_PM
4056static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4057{
4058 struct btusb_data *data = priv;
4059
4060 pm_wakeup_event(&data->udev->dev, 0);
4061 pm_system_wakeup();
4062
4063 /* Disable only if not already disabled (keep it balanced) */
4064 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4065 disable_irq_nosync(irq);
4066 disable_irq_wake(irq);
4067 }
4068 return IRQ_HANDLED;
4069}
4070
4071static const struct of_device_id btusb_match_table[] = {
4072 { .compatible = "usb1286,204e" },
4073 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4074 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4075 { }
4076};
4077MODULE_DEVICE_TABLE(of, btusb_match_table);
4078
4079/* Use an oob wakeup pin? */
4080static int btusb_config_oob_wake(struct hci_dev *hdev)
4081{
4082 struct btusb_data *data = hci_get_drvdata(hdev);
4083 struct device *dev = &data->udev->dev;
4084 int irq, ret;
4085
4086 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4087
4088 if (!of_match_device(btusb_match_table, dev))
4089 return 0;
4090
4091 /* Move on if no IRQ specified */
4092 irq = of_irq_get_byname(dev->of_node, "wakeup");
4093 if (irq <= 0) {
4094 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4095 return 0;
4096 }
4097
4098 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4099 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4100 0, "OOB Wake-on-BT", data);
4101 if (ret) {
4102 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4103 return ret;
4104 }
4105
4106 ret = device_init_wakeup(dev, true);
4107 if (ret) {
4108 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4109 return ret;
4110 }
4111
4112 data->oob_wake_irq = irq;
4113 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4114 return 0;
4115}
4116#endif
4117
4118static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4119{
4120 if (dmi_check_system(btusb_needs_reset_resume_table))
4121 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4122}
4123
4124static bool btusb_wakeup(struct hci_dev *hdev)
4125{
4126 struct btusb_data *data = hci_get_drvdata(hdev);
4127
4128 return device_may_wakeup(&data->udev->dev);
4129}
4130
4131static int btusb_shutdown_qca(struct hci_dev *hdev)
4132{
4133 struct sk_buff *skb;
4134
4135 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4136 if (IS_ERR(skb)) {
4137 bt_dev_err(hdev, "HCI reset during shutdown failed");
4138 return PTR_ERR(skb);
4139 }
4140 kfree_skb(skb);
4141
4142 return 0;
4143}
4144
4145static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4146 size_t count, loff_t *ppos)
4147{
4148 struct btusb_data *data = file->private_data;
4149 char buf[3];
4150
4151 buf[0] = data->poll_sync ? 'Y' : 'N';
4152 buf[1] = '\n';
4153 buf[2] = '\0';
4154 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4155}
4156
4157static ssize_t force_poll_sync_write(struct file *file,
4158 const char __user *user_buf,
4159 size_t count, loff_t *ppos)
4160{
4161 struct btusb_data *data = file->private_data;
4162 bool enable;
4163 int err;
4164
4165 err = kstrtobool_from_user(user_buf, count, &enable);
4166 if (err)
4167 return err;
4168
4169 /* Only allow changes while the adapter is down */
4170 if (test_bit(HCI_UP, &data->hdev->flags))
4171 return -EPERM;
4172
4173 if (data->poll_sync == enable)
4174 return -EALREADY;
4175
4176 data->poll_sync = enable;
4177
4178 return count;
4179}
4180
4181static const struct file_operations force_poll_sync_fops = {
4182 .open = simple_open,
4183 .read = force_poll_sync_read,
4184 .write = force_poll_sync_write,
4185 .llseek = default_llseek,
4186};
4187
4188static int btusb_probe(struct usb_interface *intf,
4189 const struct usb_device_id *id)
4190{
4191 struct usb_endpoint_descriptor *ep_desc;
4192 struct gpio_desc *reset_gpio;
4193 struct btusb_data *data;
4194 struct hci_dev *hdev;
4195 unsigned ifnum_base;
4196 int i, err, priv_size;
4197
4198 BT_DBG("intf %p id %p", intf, id);
4199
4200 if ((id->driver_info & BTUSB_IFNUM_2) &&
4201 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4202 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4203 return -ENODEV;
4204
4205 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4206
4207 if (!id->driver_info) {
4208 const struct usb_device_id *match;
4209
4210 match = usb_match_id(intf, quirks_table);
4211 if (match)
4212 id = match;
4213 }
4214
4215 if (id->driver_info == BTUSB_IGNORE)
4216 return -ENODEV;
4217
4218 if (id->driver_info & BTUSB_ATH3012) {
4219 struct usb_device *udev = interface_to_usbdev(intf);
4220
4221 /* Old firmware would otherwise let ath3k driver load
4222 * patch and sysconfig files
4223 */
4224 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4225 !btusb_qca_need_patch(udev))
4226 return -ENODEV;
4227 }
4228
4229 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4230 if (!data)
4231 return -ENOMEM;
4232
4233 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4234 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4235
4236 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4237 data->intr_ep = ep_desc;
4238 continue;
4239 }
4240
4241 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4242 data->bulk_tx_ep = ep_desc;
4243 continue;
4244 }
4245
4246 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4247 data->bulk_rx_ep = ep_desc;
4248 continue;
4249 }
4250 }
4251
4252 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4253 return -ENODEV;
4254
4255 if (id->driver_info & BTUSB_AMP) {
4256 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4257 data->cmdreq = 0x2b;
4258 } else {
4259 data->cmdreq_type = USB_TYPE_CLASS;
4260 data->cmdreq = 0x00;
4261 }
4262
4263 data->udev = interface_to_usbdev(intf);
4264 data->intf = intf;
4265
4266 INIT_WORK(&data->work, btusb_work);
4267 INIT_WORK(&data->waker, btusb_waker);
4268 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4269
4270 skb_queue_head_init(&data->acl_q);
4271
4272 init_usb_anchor(&data->deferred);
4273 init_usb_anchor(&data->tx_anchor);
4274 spin_lock_init(&data->txlock);
4275
4276 init_usb_anchor(&data->intr_anchor);
4277 init_usb_anchor(&data->bulk_anchor);
4278 init_usb_anchor(&data->isoc_anchor);
4279 init_usb_anchor(&data->diag_anchor);
4280 init_usb_anchor(&data->ctrl_anchor);
4281 spin_lock_init(&data->rxlock);
4282
4283 priv_size = 0;
4284
4285 data->recv_event = hci_recv_frame;
4286 data->recv_bulk = btusb_recv_bulk;
4287
4288 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4289 /* Allocate extra space for Intel device */
4290 priv_size += sizeof(struct btintel_data);
4291
4292 /* Override the rx handlers */
4293 data->recv_event = btintel_recv_event;
4294 data->recv_bulk = btusb_recv_bulk_intel;
4295 } else if (id->driver_info & BTUSB_REALTEK) {
4296 /* Allocate extra space for Realtek device */
4297 priv_size += sizeof(struct btrealtek_data);
4298
4299 data->recv_event = btusb_recv_event_realtek;
4300 } else if (id->driver_info & BTUSB_MEDIATEK) {
4301 /* Allocate extra space for Mediatek device */
4302 priv_size += sizeof(struct btmediatek_data);
4303 }
4304
4305 data->recv_acl = hci_recv_frame;
4306
4307 hdev = hci_alloc_dev_priv(priv_size);
4308 if (!hdev)
4309 return -ENOMEM;
4310
4311 hdev->bus = HCI_USB;
4312 hci_set_drvdata(hdev, data);
4313
4314 if (id->driver_info & BTUSB_AMP)
4315 hdev->dev_type = HCI_AMP;
4316 else
4317 hdev->dev_type = HCI_PRIMARY;
4318
4319 data->hdev = hdev;
4320
4321 SET_HCIDEV_DEV(hdev, &intf->dev);
4322
4323 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4324 GPIOD_OUT_LOW);
4325 if (IS_ERR(reset_gpio)) {
4326 err = PTR_ERR(reset_gpio);
4327 goto out_free_dev;
4328 } else if (reset_gpio) {
4329 data->reset_gpio = reset_gpio;
4330 }
4331
4332 hdev->open = btusb_open;
4333 hdev->close = btusb_close;
4334 hdev->flush = btusb_flush;
4335 hdev->send = btusb_send_frame;
4336 hdev->notify = btusb_notify;
4337 hdev->wakeup = btusb_wakeup;
4338
4339#ifdef CONFIG_PM
4340 err = btusb_config_oob_wake(hdev);
4341 if (err)
4342 goto out_free_dev;
4343
4344 /* Marvell devices may need a specific chip configuration */
4345 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4346 err = marvell_config_oob_wake(hdev);
4347 if (err)
4348 goto out_free_dev;
4349 }
4350#endif
4351 if (id->driver_info & BTUSB_CW6622)
4352 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4353
4354 if (id->driver_info & BTUSB_BCM2045)
4355 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4356
4357 if (id->driver_info & BTUSB_BCM92035)
4358 hdev->setup = btusb_setup_bcm92035;
4359
4360 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4361 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4362 hdev->manufacturer = 15;
4363 hdev->setup = btbcm_setup_patchram;
4364 hdev->set_diag = btusb_bcm_set_diag;
4365 hdev->set_bdaddr = btbcm_set_bdaddr;
4366
4367 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4368 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4369 }
4370
4371 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4372 (id->driver_info & BTUSB_BCM_APPLE)) {
4373 hdev->manufacturer = 15;
4374 hdev->setup = btbcm_setup_apple;
4375 hdev->set_diag = btusb_bcm_set_diag;
4376
4377 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4378 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4379 }
4380
4381 /* Combined Intel Device setup to support multiple setup routine */
4382 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4383 err = btintel_configure_setup(hdev, btusb_driver.name);
4384 if (err)
4385 goto out_free_dev;
4386
4387 /* Transport specific configuration */
4388 hdev->send = btusb_send_frame_intel;
4389 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4390
4391 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4392 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4393
4394 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4395 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4396
4397 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4398 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4399 }
4400
4401 if (id->driver_info & BTUSB_MARVELL)
4402 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4403
4404 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4405 (id->driver_info & BTUSB_MEDIATEK)) {
4406 hdev->setup = btusb_mtk_setup;
4407 hdev->shutdown = btusb_mtk_shutdown;
4408 hdev->manufacturer = 70;
4409 hdev->cmd_timeout = btmtk_reset_sync;
4410 hdev->set_bdaddr = btmtk_set_bdaddr;
4411 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4412 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4413 data->recv_acl = btusb_recv_acl_mtk;
4414 }
4415
4416 if (id->driver_info & BTUSB_SWAVE) {
4417 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4418 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4419 }
4420
4421 if (id->driver_info & BTUSB_INTEL_BOOT) {
4422 hdev->manufacturer = 2;
4423 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4424 }
4425
4426 if (id->driver_info & BTUSB_ATH3012) {
4427 data->setup_on_usb = btusb_setup_qca;
4428 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4429 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4430 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4431 }
4432
4433 if (id->driver_info & BTUSB_QCA_ROME) {
4434 data->setup_on_usb = btusb_setup_qca;
4435 hdev->shutdown = btusb_shutdown_qca;
4436 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4437 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4438 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4439 btusb_check_needs_reset_resume(intf);
4440 }
4441
4442 if (id->driver_info & BTUSB_QCA_WCN6855) {
4443 data->qca_dump.id_vendor = id->idVendor;
4444 data->qca_dump.id_product = id->idProduct;
4445 data->recv_event = btusb_recv_evt_qca;
4446 data->recv_acl = btusb_recv_acl_qca;
4447 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4448 data->setup_on_usb = btusb_setup_qca;
4449 hdev->shutdown = btusb_shutdown_qca;
4450 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4451 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4452 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4453 hci_set_msft_opcode(hdev, 0xFD70);
4454 }
4455
4456 if (id->driver_info & BTUSB_AMP) {
4457 /* AMP controllers do not support SCO packets */
4458 data->isoc = NULL;
4459 } else {
4460 /* Interface orders are hardcoded in the specification */
4461 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4462 data->isoc_ifnum = ifnum_base + 1;
4463 }
4464
4465 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4466 (id->driver_info & BTUSB_REALTEK)) {
4467 btrtl_set_driver_name(hdev, btusb_driver.name);
4468 hdev->setup = btusb_setup_realtek;
4469 hdev->shutdown = btrtl_shutdown_realtek;
4470 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4471 hdev->hw_error = btusb_rtl_hw_error;
4472
4473 /* Realtek devices need to set remote wakeup on auto-suspend */
4474 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4475 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4476 }
4477
4478 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4479 /* Support is advertised, but not implemented */
4480 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4481 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4482 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4483 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4484 }
4485
4486 if (!reset)
4487 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4488
4489 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4490 if (!disable_scofix)
4491 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4492 }
4493
4494 if (id->driver_info & BTUSB_BROKEN_ISOC)
4495 data->isoc = NULL;
4496
4497 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4498 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4499
4500 if (id->driver_info & BTUSB_VALID_LE_STATES)
4501 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4502
4503 if (id->driver_info & BTUSB_DIGIANSWER) {
4504 data->cmdreq_type = USB_TYPE_VENDOR;
4505 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4506 }
4507
4508 if (id->driver_info & BTUSB_CSR) {
4509 struct usb_device *udev = data->udev;
4510 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4511
4512 /* Old firmware would otherwise execute USB reset */
4513 if (bcdDevice < 0x117)
4514 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4515
4516 /* This must be set first in case we disable it for fakes */
4517 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4518
4519 /* Fake CSR devices with broken commands */
4520 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4521 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4522 hdev->setup = btusb_setup_csr;
4523 }
4524
4525 if (id->driver_info & BTUSB_SNIFFER) {
4526 struct usb_device *udev = data->udev;
4527
4528 /* New sniffer firmware has crippled HCI interface */
4529 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4530 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4531 }
4532
4533 if (id->driver_info & BTUSB_INTEL_BOOT) {
4534 /* A bug in the bootloader causes that interrupt interface is
4535 * only enabled after receiving SetInterface(0, AltSetting=0).
4536 */
4537 err = usb_set_interface(data->udev, 0, 0);
4538 if (err < 0) {
4539 BT_ERR("failed to set interface 0, alt 0 %d", err);
4540 goto out_free_dev;
4541 }
4542 }
4543
4544 if (data->isoc) {
4545 err = usb_driver_claim_interface(&btusb_driver,
4546 data->isoc, data);
4547 if (err < 0)
4548 goto out_free_dev;
4549 }
4550
4551 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4552 if (!usb_driver_claim_interface(&btusb_driver,
4553 data->diag, data))
4554 __set_diag_interface(hdev);
4555 else
4556 data->diag = NULL;
4557 }
4558
4559 if (enable_autosuspend)
4560 usb_enable_autosuspend(data->udev);
4561
4562 data->poll_sync = enable_poll_sync;
4563
4564 err = hci_register_dev(hdev);
4565 if (err < 0)
4566 goto out_free_dev;
4567
4568 usb_set_intfdata(intf, data);
4569
4570 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4571 &force_poll_sync_fops);
4572
4573 return 0;
4574
4575out_free_dev:
4576 if (data->reset_gpio)
4577 gpiod_put(data->reset_gpio);
4578 hci_free_dev(hdev);
4579 return err;
4580}
4581
4582static void btusb_disconnect(struct usb_interface *intf)
4583{
4584 struct btusb_data *data = usb_get_intfdata(intf);
4585 struct hci_dev *hdev;
4586
4587 BT_DBG("intf %p", intf);
4588
4589 if (!data)
4590 return;
4591
4592 hdev = data->hdev;
4593 usb_set_intfdata(data->intf, NULL);
4594
4595 if (data->isoc)
4596 usb_set_intfdata(data->isoc, NULL);
4597
4598 if (data->diag)
4599 usb_set_intfdata(data->diag, NULL);
4600
4601 hci_unregister_dev(hdev);
4602
4603 if (intf == data->intf) {
4604 if (data->isoc)
4605 usb_driver_release_interface(&btusb_driver, data->isoc);
4606 if (data->diag)
4607 usb_driver_release_interface(&btusb_driver, data->diag);
4608 } else if (intf == data->isoc) {
4609 if (data->diag)
4610 usb_driver_release_interface(&btusb_driver, data->diag);
4611 usb_driver_release_interface(&btusb_driver, data->intf);
4612 } else if (intf == data->diag) {
4613 usb_driver_release_interface(&btusb_driver, data->intf);
4614 if (data->isoc)
4615 usb_driver_release_interface(&btusb_driver, data->isoc);
4616 }
4617
4618 if (data->oob_wake_irq)
4619 device_init_wakeup(&data->udev->dev, false);
4620
4621 if (data->reset_gpio)
4622 gpiod_put(data->reset_gpio);
4623
4624 hci_free_dev(hdev);
4625}
4626
4627#ifdef CONFIG_PM
4628static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4629{
4630 struct btusb_data *data = usb_get_intfdata(intf);
4631
4632 BT_DBG("intf %p", intf);
4633
4634 /* Don't suspend if there are connections */
4635 if (hci_conn_count(data->hdev))
4636 return -EBUSY;
4637
4638 if (data->suspend_count++)
4639 return 0;
4640
4641 spin_lock_irq(&data->txlock);
4642 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4643 set_bit(BTUSB_SUSPENDING, &data->flags);
4644 spin_unlock_irq(&data->txlock);
4645 } else {
4646 spin_unlock_irq(&data->txlock);
4647 data->suspend_count--;
4648 return -EBUSY;
4649 }
4650
4651 cancel_work_sync(&data->work);
4652
4653 btusb_stop_traffic(data);
4654 usb_kill_anchored_urbs(&data->tx_anchor);
4655
4656 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4657 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4658 enable_irq_wake(data->oob_wake_irq);
4659 enable_irq(data->oob_wake_irq);
4660 }
4661
4662 /* For global suspend, Realtek devices lose the loaded fw
4663 * in them. But for autosuspend, firmware should remain.
4664 * Actually, it depends on whether the usb host sends
4665 * set feature (enable wakeup) or not.
4666 */
4667 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4668 if (PMSG_IS_AUTO(message) &&
4669 device_can_wakeup(&data->udev->dev))
4670 data->udev->do_remote_wakeup = 1;
4671 else if (!PMSG_IS_AUTO(message) &&
4672 !device_may_wakeup(&data->udev->dev)) {
4673 data->udev->do_remote_wakeup = 0;
4674 data->udev->reset_resume = 1;
4675 }
4676 }
4677
4678 return 0;
4679}
4680
4681static void play_deferred(struct btusb_data *data)
4682{
4683 struct urb *urb;
4684 int err;
4685
4686 while ((urb = usb_get_from_anchor(&data->deferred))) {
4687 usb_anchor_urb(urb, &data->tx_anchor);
4688
4689 err = usb_submit_urb(urb, GFP_ATOMIC);
4690 if (err < 0) {
4691 if (err != -EPERM && err != -ENODEV)
4692 BT_ERR("%s urb %p submission failed (%d)",
4693 data->hdev->name, urb, -err);
4694 kfree(urb->setup_packet);
4695 usb_unanchor_urb(urb);
4696 usb_free_urb(urb);
4697 break;
4698 }
4699
4700 data->tx_in_flight++;
4701 usb_free_urb(urb);
4702 }
4703
4704 /* Cleanup the rest deferred urbs. */
4705 while ((urb = usb_get_from_anchor(&data->deferred))) {
4706 kfree(urb->setup_packet);
4707 usb_free_urb(urb);
4708 }
4709}
4710
4711static int btusb_resume(struct usb_interface *intf)
4712{
4713 struct btusb_data *data = usb_get_intfdata(intf);
4714 struct hci_dev *hdev = data->hdev;
4715 int err = 0;
4716
4717 BT_DBG("intf %p", intf);
4718
4719 if (--data->suspend_count)
4720 return 0;
4721
4722 /* Disable only if not already disabled (keep it balanced) */
4723 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4724 disable_irq(data->oob_wake_irq);
4725 disable_irq_wake(data->oob_wake_irq);
4726 }
4727
4728 if (!test_bit(HCI_RUNNING, &hdev->flags))
4729 goto done;
4730
4731 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4732 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4733 if (err < 0) {
4734 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4735 goto failed;
4736 }
4737 }
4738
4739 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4740 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4741 if (err < 0) {
4742 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4743 goto failed;
4744 }
4745
4746 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4747 }
4748
4749 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4750 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4751 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4752 else
4753 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4754 }
4755
4756 spin_lock_irq(&data->txlock);
4757 play_deferred(data);
4758 clear_bit(BTUSB_SUSPENDING, &data->flags);
4759 spin_unlock_irq(&data->txlock);
4760 schedule_work(&data->work);
4761
4762 return 0;
4763
4764failed:
4765 usb_scuttle_anchored_urbs(&data->deferred);
4766done:
4767 spin_lock_irq(&data->txlock);
4768 clear_bit(BTUSB_SUSPENDING, &data->flags);
4769 spin_unlock_irq(&data->txlock);
4770
4771 return err;
4772}
4773#endif
4774
4775#ifdef CONFIG_DEV_COREDUMP
4776static void btusb_coredump(struct device *dev)
4777{
4778 struct btusb_data *data = dev_get_drvdata(dev);
4779 struct hci_dev *hdev = data->hdev;
4780
4781 if (hdev->dump.coredump)
4782 hdev->dump.coredump(hdev);
4783}
4784#endif
4785
4786static struct usb_driver btusb_driver = {
4787 .name = "btusb",
4788 .probe = btusb_probe,
4789 .disconnect = btusb_disconnect,
4790#ifdef CONFIG_PM
4791 .suspend = btusb_suspend,
4792 .resume = btusb_resume,
4793#endif
4794 .id_table = btusb_table,
4795 .supports_autosuspend = 1,
4796 .disable_hub_initiated_lpm = 1,
4797
4798#ifdef CONFIG_DEV_COREDUMP
4799 .driver = {
4800 .coredump = btusb_coredump,
4801 },
4802#endif
4803};
4804
4805module_usb_driver(btusb_driver);
4806
4807module_param(disable_scofix, bool, 0644);
4808MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4809
4810module_param(force_scofix, bool, 0644);
4811MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4812
4813module_param(enable_autosuspend, bool, 0644);
4814MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4815
4816module_param(reset, bool, 0644);
4817MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4818
4819MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4820MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4821MODULE_VERSION(VERSION);
4822MODULE_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 <asm/unaligned.h>
20
21#include <net/bluetooth/bluetooth.h>
22#include <net/bluetooth/hci_core.h>
23
24#include "btintel.h"
25#include "btbcm.h"
26#include "btrtl.h"
27
28#define VERSION "0.8"
29
30static bool disable_scofix;
31static bool force_scofix;
32static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
33
34static bool reset = true;
35
36static struct usb_driver btusb_driver;
37
38#define BTUSB_IGNORE 0x01
39#define BTUSB_DIGIANSWER 0x02
40#define BTUSB_CSR 0x04
41#define BTUSB_SNIFFER 0x08
42#define BTUSB_BCM92035 0x10
43#define BTUSB_BROKEN_ISOC 0x20
44#define BTUSB_WRONG_SCO_MTU 0x40
45#define BTUSB_ATH3012 0x80
46#define BTUSB_INTEL 0x100
47#define BTUSB_INTEL_BOOT 0x200
48#define BTUSB_BCM_PATCHRAM 0x400
49#define BTUSB_MARVELL 0x800
50#define BTUSB_SWAVE 0x1000
51#define BTUSB_INTEL_NEW 0x2000
52#define BTUSB_AMP 0x4000
53#define BTUSB_QCA_ROME 0x8000
54#define BTUSB_BCM_APPLE 0x10000
55#define BTUSB_REALTEK 0x20000
56#define BTUSB_BCM2045 0x40000
57#define BTUSB_IFNUM_2 0x80000
58#define BTUSB_CW6622 0x100000
59#define BTUSB_MEDIATEK 0x200000
60
61static const struct usb_device_id btusb_table[] = {
62 /* Generic Bluetooth USB device */
63 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
64
65 /* Generic Bluetooth AMP device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
67
68 /* Generic Bluetooth USB interface */
69 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
70
71 /* Apple-specific (Broadcom) devices */
72 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
73 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
74
75 /* MediaTek MT76x0E */
76 { USB_DEVICE(0x0e8d, 0x763f) },
77
78 /* Broadcom SoftSailing reporting vendor specific */
79 { USB_DEVICE(0x0a5c, 0x21e1) },
80
81 /* Apple MacBookPro 7,1 */
82 { USB_DEVICE(0x05ac, 0x8213) },
83
84 /* Apple iMac11,1 */
85 { USB_DEVICE(0x05ac, 0x8215) },
86
87 /* Apple MacBookPro6,2 */
88 { USB_DEVICE(0x05ac, 0x8218) },
89
90 /* Apple MacBookAir3,1, MacBookAir3,2 */
91 { USB_DEVICE(0x05ac, 0x821b) },
92
93 /* Apple MacBookAir4,1 */
94 { USB_DEVICE(0x05ac, 0x821f) },
95
96 /* Apple MacBookPro8,2 */
97 { USB_DEVICE(0x05ac, 0x821a) },
98
99 /* Apple MacMini5,1 */
100 { USB_DEVICE(0x05ac, 0x8281) },
101
102 /* AVM BlueFRITZ! USB v2.0 */
103 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
104
105 /* Bluetooth Ultraport Module from IBM */
106 { USB_DEVICE(0x04bf, 0x030a) },
107
108 /* ALPS Modules with non-standard id */
109 { USB_DEVICE(0x044e, 0x3001) },
110 { USB_DEVICE(0x044e, 0x3002) },
111
112 /* Ericsson with non-standard id */
113 { USB_DEVICE(0x0bdb, 0x1002) },
114
115 /* Canyon CN-BTU1 with HID interfaces */
116 { USB_DEVICE(0x0c10, 0x0000) },
117
118 /* Broadcom BCM20702A0 */
119 { USB_DEVICE(0x413c, 0x8197) },
120
121 /* Broadcom BCM20702B0 (Dynex/Insignia) */
122 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
123
124 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
125 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
126 .driver_info = BTUSB_BCM_PATCHRAM },
127
128 /* Broadcom BCM920703 (HTC Vive) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
132 /* Foxconn - Hon Hai */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Broadcom devices with vendor specific id */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* ASUSTek Computer - Broadcom based */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* Belkin F8065bf - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152 /* IMC Networks - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156 /* Dell Computer - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160 /* Toshiba Corp - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
164 /* Intel Bluetooth USB Bootloader (RAM module) */
165 { USB_DEVICE(0x8087, 0x0a5a),
166 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
167
168 { } /* Terminating entry */
169};
170
171MODULE_DEVICE_TABLE(usb, btusb_table);
172
173static const struct usb_device_id blacklist_table[] = {
174 /* CSR BlueCore devices */
175 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
176
177 /* Broadcom BCM2033 without firmware */
178 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
179
180 /* Broadcom BCM2045 devices */
181 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
182
183 /* Atheros 3011 with sflash firmware */
184 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
187 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
188 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
191
192 /* Atheros AR9285 Malbec with sflash firmware */
193 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
194
195 /* Atheros 3012 with sflash firmware */
196 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
246
247 /* Atheros AR5BBU12 with sflash firmware */
248 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
249
250 /* Atheros AR5BBU12 with sflash firmware */
251 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
253
254 /* QCA ROME chipset */
255 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
256 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
257 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
258 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
259 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
260 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
261 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
262 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
263 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
264 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
265 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
266 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
267 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
268 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
269 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
272
273 /* Broadcom BCM2035 */
274 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
275 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
276 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
277
278 /* Broadcom BCM2045 */
279 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
280 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
281
282 /* IBM/Lenovo ThinkPad with Broadcom chip */
283 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
284 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
285
286 /* HP laptop with Broadcom chip */
287 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
288
289 /* Dell laptop with Broadcom chip */
290 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
291
292 /* Dell Wireless 370 and 410 devices */
293 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
294 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
295
296 /* Belkin F8T012 and F8T013 devices */
297 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
298 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
299
300 /* Asus WL-BTD202 device */
301 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
302
303 /* Kensington Bluetooth USB adapter */
304 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
305
306 /* RTX Telecom based adapters with buggy SCO support */
307 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
308 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
309
310 /* CONWISE Technology based adapters with buggy SCO support */
311 { USB_DEVICE(0x0e5e, 0x6622),
312 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
313
314 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
315 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
316
317 /* Digianswer devices */
318 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
319 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
320
321 /* CSR BlueCore Bluetooth Sniffer */
322 { USB_DEVICE(0x0a12, 0x0002),
323 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
324
325 /* Frontline ComProbe Bluetooth Sniffer */
326 { USB_DEVICE(0x16d3, 0x0002),
327 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
328
329 /* Marvell Bluetooth devices */
330 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
331 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
332 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
333
334 /* Intel Bluetooth devices */
335 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
336 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
337 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW },
338 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
339 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
340 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
341 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
342 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
343 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
344
345 /* Other Intel Bluetooth devices */
346 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
347 .driver_info = BTUSB_IGNORE },
348
349 /* Realtek Bluetooth devices */
350 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
351 .driver_info = BTUSB_REALTEK },
352
353 /* MediaTek Bluetooth devices */
354 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
355 .driver_info = BTUSB_MEDIATEK },
356
357 /* Additional Realtek 8723AE Bluetooth devices */
358 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
359 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
360
361 /* Additional Realtek 8723BE Bluetooth devices */
362 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
363 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
368
369 /* Additional Realtek 8723BU Bluetooth devices */
370 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
371
372 /* Additional Realtek 8723DE Bluetooth devices */
373 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
374 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
375
376 /* Additional Realtek 8821AE Bluetooth devices */
377 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
378 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
379 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
380 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
381 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
382
383 /* Additional Realtek 8822BE Bluetooth devices */
384 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
385 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
386
387 /* Additional Realtek 8822CE Bluetooth devices */
388 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
389
390 /* Silicon Wave based devices */
391 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
392
393 { } /* Terminating entry */
394};
395
396/* The Bluetooth USB module build into some devices needs to be reset on resume,
397 * this is a problem with the platform (likely shutting off all power) not with
398 * the module itself. So we use a DMI list to match known broken platforms.
399 */
400static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
401 {
402 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
403 .matches = {
404 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
406 },
407 },
408 {
409 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
410 .matches = {
411 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
412 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
413 },
414 },
415 {
416 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
417 .matches = {
418 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
419 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
420 },
421 },
422 {}
423};
424
425#define BTUSB_MAX_ISOC_FRAMES 10
426
427#define BTUSB_INTR_RUNNING 0
428#define BTUSB_BULK_RUNNING 1
429#define BTUSB_ISOC_RUNNING 2
430#define BTUSB_SUSPENDING 3
431#define BTUSB_DID_ISO_RESUME 4
432#define BTUSB_BOOTLOADER 5
433#define BTUSB_DOWNLOADING 6
434#define BTUSB_FIRMWARE_LOADED 7
435#define BTUSB_FIRMWARE_FAILED 8
436#define BTUSB_BOOTING 9
437#define BTUSB_DIAG_RUNNING 10
438#define BTUSB_OOB_WAKE_ENABLED 11
439#define BTUSB_HW_RESET_ACTIVE 12
440#define BTUSB_TX_WAIT_VND_EVT 13
441#define BTUSB_WAKEUP_DISABLE 14
442
443struct btusb_data {
444 struct hci_dev *hdev;
445 struct usb_device *udev;
446 struct usb_interface *intf;
447 struct usb_interface *isoc;
448 struct usb_interface *diag;
449 unsigned isoc_ifnum;
450
451 unsigned long flags;
452
453 struct work_struct work;
454 struct work_struct waker;
455
456 struct usb_anchor deferred;
457 struct usb_anchor tx_anchor;
458 int tx_in_flight;
459 spinlock_t txlock;
460
461 struct usb_anchor intr_anchor;
462 struct usb_anchor bulk_anchor;
463 struct usb_anchor isoc_anchor;
464 struct usb_anchor diag_anchor;
465 struct usb_anchor ctrl_anchor;
466 spinlock_t rxlock;
467
468 struct sk_buff *evt_skb;
469 struct sk_buff *acl_skb;
470 struct sk_buff *sco_skb;
471
472 struct usb_endpoint_descriptor *intr_ep;
473 struct usb_endpoint_descriptor *bulk_tx_ep;
474 struct usb_endpoint_descriptor *bulk_rx_ep;
475 struct usb_endpoint_descriptor *isoc_tx_ep;
476 struct usb_endpoint_descriptor *isoc_rx_ep;
477 struct usb_endpoint_descriptor *diag_tx_ep;
478 struct usb_endpoint_descriptor *diag_rx_ep;
479
480 struct gpio_desc *reset_gpio;
481
482 __u8 cmdreq_type;
483 __u8 cmdreq;
484
485 unsigned int sco_num;
486 int isoc_altsetting;
487 int suspend_count;
488
489 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
490 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
491
492 int (*setup_on_usb)(struct hci_dev *hdev);
493
494 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
495 unsigned cmd_timeout_cnt;
496};
497
498
499static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
500{
501 struct btusb_data *data = hci_get_drvdata(hdev);
502 struct gpio_desc *reset_gpio = data->reset_gpio;
503
504 if (++data->cmd_timeout_cnt < 5)
505 return;
506
507 if (!reset_gpio) {
508 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
509 return;
510 }
511
512 /*
513 * Toggle the hard reset line if the platform provides one. The reset
514 * is going to yank the device off the USB and then replug. So doing
515 * once is enough. The cleanup is handled correctly on the way out
516 * (standard USB disconnect), and the new device is detected cleanly
517 * and bound to the driver again like it should be.
518 */
519 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
520 bt_dev_err(hdev, "last reset failed? Not resetting again");
521 return;
522 }
523
524 bt_dev_err(hdev, "Initiating HW reset via gpio");
525 gpiod_set_value_cansleep(reset_gpio, 1);
526 msleep(100);
527 gpiod_set_value_cansleep(reset_gpio, 0);
528}
529
530static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
531{
532 struct btusb_data *data = hci_get_drvdata(hdev);
533 struct gpio_desc *reset_gpio = data->reset_gpio;
534
535 if (++data->cmd_timeout_cnt < 5)
536 return;
537
538 if (!reset_gpio) {
539 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
540 return;
541 }
542
543 /* Toggle the hard reset line. The Realtek device is going to
544 * yank itself off the USB and then replug. The cleanup is handled
545 * correctly on the way out (standard USB disconnect), and the new
546 * device is detected cleanly and bound to the driver again like
547 * it should be.
548 */
549 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
550 bt_dev_err(hdev, "last reset failed? Not resetting again");
551 return;
552 }
553
554 bt_dev_err(hdev, "Reset Realtek device via gpio");
555 gpiod_set_value_cansleep(reset_gpio, 0);
556 msleep(200);
557 gpiod_set_value_cansleep(reset_gpio, 1);
558}
559
560static inline void btusb_free_frags(struct btusb_data *data)
561{
562 unsigned long flags;
563
564 spin_lock_irqsave(&data->rxlock, flags);
565
566 kfree_skb(data->evt_skb);
567 data->evt_skb = NULL;
568
569 kfree_skb(data->acl_skb);
570 data->acl_skb = NULL;
571
572 kfree_skb(data->sco_skb);
573 data->sco_skb = NULL;
574
575 spin_unlock_irqrestore(&data->rxlock, flags);
576}
577
578static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
579{
580 struct sk_buff *skb;
581 unsigned long flags;
582 int err = 0;
583
584 spin_lock_irqsave(&data->rxlock, flags);
585 skb = data->evt_skb;
586
587 while (count) {
588 int len;
589
590 if (!skb) {
591 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
592 if (!skb) {
593 err = -ENOMEM;
594 break;
595 }
596
597 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
598 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
599 }
600
601 len = min_t(uint, hci_skb_expect(skb), count);
602 skb_put_data(skb, buffer, len);
603
604 count -= len;
605 buffer += len;
606 hci_skb_expect(skb) -= len;
607
608 if (skb->len == HCI_EVENT_HDR_SIZE) {
609 /* Complete event header */
610 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
611
612 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
613 kfree_skb(skb);
614 skb = NULL;
615
616 err = -EILSEQ;
617 break;
618 }
619 }
620
621 if (!hci_skb_expect(skb)) {
622 /* Complete frame */
623 data->recv_event(data->hdev, skb);
624 skb = NULL;
625 }
626 }
627
628 data->evt_skb = skb;
629 spin_unlock_irqrestore(&data->rxlock, flags);
630
631 return err;
632}
633
634static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
635{
636 struct sk_buff *skb;
637 unsigned long flags;
638 int err = 0;
639
640 spin_lock_irqsave(&data->rxlock, flags);
641 skb = data->acl_skb;
642
643 while (count) {
644 int len;
645
646 if (!skb) {
647 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
648 if (!skb) {
649 err = -ENOMEM;
650 break;
651 }
652
653 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
654 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
655 }
656
657 len = min_t(uint, hci_skb_expect(skb), count);
658 skb_put_data(skb, buffer, len);
659
660 count -= len;
661 buffer += len;
662 hci_skb_expect(skb) -= len;
663
664 if (skb->len == HCI_ACL_HDR_SIZE) {
665 __le16 dlen = hci_acl_hdr(skb)->dlen;
666
667 /* Complete ACL header */
668 hci_skb_expect(skb) = __le16_to_cpu(dlen);
669
670 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
671 kfree_skb(skb);
672 skb = NULL;
673
674 err = -EILSEQ;
675 break;
676 }
677 }
678
679 if (!hci_skb_expect(skb)) {
680 /* Complete frame */
681 hci_recv_frame(data->hdev, skb);
682 skb = NULL;
683 }
684 }
685
686 data->acl_skb = skb;
687 spin_unlock_irqrestore(&data->rxlock, flags);
688
689 return err;
690}
691
692static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
693{
694 struct sk_buff *skb;
695 unsigned long flags;
696 int err = 0;
697
698 spin_lock_irqsave(&data->rxlock, flags);
699 skb = data->sco_skb;
700
701 while (count) {
702 int len;
703
704 if (!skb) {
705 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
706 if (!skb) {
707 err = -ENOMEM;
708 break;
709 }
710
711 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
712 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
713 }
714
715 len = min_t(uint, hci_skb_expect(skb), count);
716 skb_put_data(skb, buffer, len);
717
718 count -= len;
719 buffer += len;
720 hci_skb_expect(skb) -= len;
721
722 if (skb->len == HCI_SCO_HDR_SIZE) {
723 /* Complete SCO header */
724 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
725
726 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
727 kfree_skb(skb);
728 skb = NULL;
729
730 err = -EILSEQ;
731 break;
732 }
733 }
734
735 if (!hci_skb_expect(skb)) {
736 /* Complete frame */
737 hci_recv_frame(data->hdev, skb);
738 skb = NULL;
739 }
740 }
741
742 data->sco_skb = skb;
743 spin_unlock_irqrestore(&data->rxlock, flags);
744
745 return err;
746}
747
748static void btusb_intr_complete(struct urb *urb)
749{
750 struct hci_dev *hdev = urb->context;
751 struct btusb_data *data = hci_get_drvdata(hdev);
752 int err;
753
754 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
755 urb->actual_length);
756
757 if (!test_bit(HCI_RUNNING, &hdev->flags))
758 return;
759
760 if (urb->status == 0) {
761 hdev->stat.byte_rx += urb->actual_length;
762
763 if (btusb_recv_intr(data, urb->transfer_buffer,
764 urb->actual_length) < 0) {
765 bt_dev_err(hdev, "corrupted event packet");
766 hdev->stat.err_rx++;
767 }
768 } else if (urb->status == -ENOENT) {
769 /* Avoid suspend failed when usb_kill_urb */
770 return;
771 }
772
773 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
774 return;
775
776 usb_mark_last_busy(data->udev);
777 usb_anchor_urb(urb, &data->intr_anchor);
778
779 err = usb_submit_urb(urb, GFP_ATOMIC);
780 if (err < 0) {
781 /* -EPERM: urb is being killed;
782 * -ENODEV: device got disconnected
783 */
784 if (err != -EPERM && err != -ENODEV)
785 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
786 urb, -err);
787 usb_unanchor_urb(urb);
788 }
789}
790
791static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
792{
793 struct btusb_data *data = hci_get_drvdata(hdev);
794 struct urb *urb;
795 unsigned char *buf;
796 unsigned int pipe;
797 int err, size;
798
799 BT_DBG("%s", hdev->name);
800
801 if (!data->intr_ep)
802 return -ENODEV;
803
804 urb = usb_alloc_urb(0, mem_flags);
805 if (!urb)
806 return -ENOMEM;
807
808 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
809
810 buf = kmalloc(size, mem_flags);
811 if (!buf) {
812 usb_free_urb(urb);
813 return -ENOMEM;
814 }
815
816 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
817
818 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
819 btusb_intr_complete, hdev, data->intr_ep->bInterval);
820
821 urb->transfer_flags |= URB_FREE_BUFFER;
822
823 usb_anchor_urb(urb, &data->intr_anchor);
824
825 err = usb_submit_urb(urb, mem_flags);
826 if (err < 0) {
827 if (err != -EPERM && err != -ENODEV)
828 bt_dev_err(hdev, "urb %p submission failed (%d)",
829 urb, -err);
830 usb_unanchor_urb(urb);
831 }
832
833 usb_free_urb(urb);
834
835 return err;
836}
837
838static void btusb_bulk_complete(struct urb *urb)
839{
840 struct hci_dev *hdev = urb->context;
841 struct btusb_data *data = hci_get_drvdata(hdev);
842 int err;
843
844 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
845 urb->actual_length);
846
847 if (!test_bit(HCI_RUNNING, &hdev->flags))
848 return;
849
850 if (urb->status == 0) {
851 hdev->stat.byte_rx += urb->actual_length;
852
853 if (data->recv_bulk(data, urb->transfer_buffer,
854 urb->actual_length) < 0) {
855 bt_dev_err(hdev, "corrupted ACL packet");
856 hdev->stat.err_rx++;
857 }
858 } else if (urb->status == -ENOENT) {
859 /* Avoid suspend failed when usb_kill_urb */
860 return;
861 }
862
863 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
864 return;
865
866 usb_anchor_urb(urb, &data->bulk_anchor);
867 usb_mark_last_busy(data->udev);
868
869 err = usb_submit_urb(urb, GFP_ATOMIC);
870 if (err < 0) {
871 /* -EPERM: urb is being killed;
872 * -ENODEV: device got disconnected
873 */
874 if (err != -EPERM && err != -ENODEV)
875 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
876 urb, -err);
877 usb_unanchor_urb(urb);
878 }
879}
880
881static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
882{
883 struct btusb_data *data = hci_get_drvdata(hdev);
884 struct urb *urb;
885 unsigned char *buf;
886 unsigned int pipe;
887 int err, size = HCI_MAX_FRAME_SIZE;
888
889 BT_DBG("%s", hdev->name);
890
891 if (!data->bulk_rx_ep)
892 return -ENODEV;
893
894 urb = usb_alloc_urb(0, mem_flags);
895 if (!urb)
896 return -ENOMEM;
897
898 buf = kmalloc(size, mem_flags);
899 if (!buf) {
900 usb_free_urb(urb);
901 return -ENOMEM;
902 }
903
904 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
905
906 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
907 btusb_bulk_complete, hdev);
908
909 urb->transfer_flags |= URB_FREE_BUFFER;
910
911 usb_mark_last_busy(data->udev);
912 usb_anchor_urb(urb, &data->bulk_anchor);
913
914 err = usb_submit_urb(urb, mem_flags);
915 if (err < 0) {
916 if (err != -EPERM && err != -ENODEV)
917 bt_dev_err(hdev, "urb %p submission failed (%d)",
918 urb, -err);
919 usb_unanchor_urb(urb);
920 }
921
922 usb_free_urb(urb);
923
924 return err;
925}
926
927static void btusb_isoc_complete(struct urb *urb)
928{
929 struct hci_dev *hdev = urb->context;
930 struct btusb_data *data = hci_get_drvdata(hdev);
931 int i, err;
932
933 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
934 urb->actual_length);
935
936 if (!test_bit(HCI_RUNNING, &hdev->flags))
937 return;
938
939 if (urb->status == 0) {
940 for (i = 0; i < urb->number_of_packets; i++) {
941 unsigned int offset = urb->iso_frame_desc[i].offset;
942 unsigned int length = urb->iso_frame_desc[i].actual_length;
943
944 if (urb->iso_frame_desc[i].status)
945 continue;
946
947 hdev->stat.byte_rx += length;
948
949 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
950 length) < 0) {
951 bt_dev_err(hdev, "corrupted SCO packet");
952 hdev->stat.err_rx++;
953 }
954 }
955 } else if (urb->status == -ENOENT) {
956 /* Avoid suspend failed when usb_kill_urb */
957 return;
958 }
959
960 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
961 return;
962
963 usb_anchor_urb(urb, &data->isoc_anchor);
964
965 err = usb_submit_urb(urb, GFP_ATOMIC);
966 if (err < 0) {
967 /* -EPERM: urb is being killed;
968 * -ENODEV: device got disconnected
969 */
970 if (err != -EPERM && err != -ENODEV)
971 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
972 urb, -err);
973 usb_unanchor_urb(urb);
974 }
975}
976
977static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
978{
979 int i, offset = 0;
980
981 BT_DBG("len %d mtu %d", len, mtu);
982
983 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
984 i++, offset += mtu, len -= mtu) {
985 urb->iso_frame_desc[i].offset = offset;
986 urb->iso_frame_desc[i].length = mtu;
987 }
988
989 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
990 urb->iso_frame_desc[i].offset = offset;
991 urb->iso_frame_desc[i].length = len;
992 i++;
993 }
994
995 urb->number_of_packets = i;
996}
997
998static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
999{
1000 struct btusb_data *data = hci_get_drvdata(hdev);
1001 struct urb *urb;
1002 unsigned char *buf;
1003 unsigned int pipe;
1004 int err, size;
1005
1006 BT_DBG("%s", hdev->name);
1007
1008 if (!data->isoc_rx_ep)
1009 return -ENODEV;
1010
1011 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1012 if (!urb)
1013 return -ENOMEM;
1014
1015 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1016 BTUSB_MAX_ISOC_FRAMES;
1017
1018 buf = kmalloc(size, mem_flags);
1019 if (!buf) {
1020 usb_free_urb(urb);
1021 return -ENOMEM;
1022 }
1023
1024 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1025
1026 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1027 hdev, data->isoc_rx_ep->bInterval);
1028
1029 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1030
1031 __fill_isoc_descriptor(urb, size,
1032 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1033
1034 usb_anchor_urb(urb, &data->isoc_anchor);
1035
1036 err = usb_submit_urb(urb, mem_flags);
1037 if (err < 0) {
1038 if (err != -EPERM && err != -ENODEV)
1039 bt_dev_err(hdev, "urb %p submission failed (%d)",
1040 urb, -err);
1041 usb_unanchor_urb(urb);
1042 }
1043
1044 usb_free_urb(urb);
1045
1046 return err;
1047}
1048
1049static void btusb_diag_complete(struct urb *urb)
1050{
1051 struct hci_dev *hdev = urb->context;
1052 struct btusb_data *data = hci_get_drvdata(hdev);
1053 int err;
1054
1055 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1056 urb->actual_length);
1057
1058 if (urb->status == 0) {
1059 struct sk_buff *skb;
1060
1061 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1062 if (skb) {
1063 skb_put_data(skb, urb->transfer_buffer,
1064 urb->actual_length);
1065 hci_recv_diag(hdev, skb);
1066 }
1067 } else if (urb->status == -ENOENT) {
1068 /* Avoid suspend failed when usb_kill_urb */
1069 return;
1070 }
1071
1072 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1073 return;
1074
1075 usb_anchor_urb(urb, &data->diag_anchor);
1076 usb_mark_last_busy(data->udev);
1077
1078 err = usb_submit_urb(urb, GFP_ATOMIC);
1079 if (err < 0) {
1080 /* -EPERM: urb is being killed;
1081 * -ENODEV: device got disconnected
1082 */
1083 if (err != -EPERM && err != -ENODEV)
1084 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1085 urb, -err);
1086 usb_unanchor_urb(urb);
1087 }
1088}
1089
1090static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1091{
1092 struct btusb_data *data = hci_get_drvdata(hdev);
1093 struct urb *urb;
1094 unsigned char *buf;
1095 unsigned int pipe;
1096 int err, size = HCI_MAX_FRAME_SIZE;
1097
1098 BT_DBG("%s", hdev->name);
1099
1100 if (!data->diag_rx_ep)
1101 return -ENODEV;
1102
1103 urb = usb_alloc_urb(0, mem_flags);
1104 if (!urb)
1105 return -ENOMEM;
1106
1107 buf = kmalloc(size, mem_flags);
1108 if (!buf) {
1109 usb_free_urb(urb);
1110 return -ENOMEM;
1111 }
1112
1113 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1114
1115 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1116 btusb_diag_complete, hdev);
1117
1118 urb->transfer_flags |= URB_FREE_BUFFER;
1119
1120 usb_mark_last_busy(data->udev);
1121 usb_anchor_urb(urb, &data->diag_anchor);
1122
1123 err = usb_submit_urb(urb, mem_flags);
1124 if (err < 0) {
1125 if (err != -EPERM && err != -ENODEV)
1126 bt_dev_err(hdev, "urb %p submission failed (%d)",
1127 urb, -err);
1128 usb_unanchor_urb(urb);
1129 }
1130
1131 usb_free_urb(urb);
1132
1133 return err;
1134}
1135
1136static void btusb_tx_complete(struct urb *urb)
1137{
1138 struct sk_buff *skb = urb->context;
1139 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1140 struct btusb_data *data = hci_get_drvdata(hdev);
1141 unsigned long flags;
1142
1143 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1144 urb->actual_length);
1145
1146 if (!test_bit(HCI_RUNNING, &hdev->flags))
1147 goto done;
1148
1149 if (!urb->status)
1150 hdev->stat.byte_tx += urb->transfer_buffer_length;
1151 else
1152 hdev->stat.err_tx++;
1153
1154done:
1155 spin_lock_irqsave(&data->txlock, flags);
1156 data->tx_in_flight--;
1157 spin_unlock_irqrestore(&data->txlock, flags);
1158
1159 kfree(urb->setup_packet);
1160
1161 kfree_skb(skb);
1162}
1163
1164static void btusb_isoc_tx_complete(struct urb *urb)
1165{
1166 struct sk_buff *skb = urb->context;
1167 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1168
1169 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1170 urb->actual_length);
1171
1172 if (!test_bit(HCI_RUNNING, &hdev->flags))
1173 goto done;
1174
1175 if (!urb->status)
1176 hdev->stat.byte_tx += urb->transfer_buffer_length;
1177 else
1178 hdev->stat.err_tx++;
1179
1180done:
1181 kfree(urb->setup_packet);
1182
1183 kfree_skb(skb);
1184}
1185
1186static int btusb_open(struct hci_dev *hdev)
1187{
1188 struct btusb_data *data = hci_get_drvdata(hdev);
1189 int err;
1190
1191 BT_DBG("%s", hdev->name);
1192
1193 err = usb_autopm_get_interface(data->intf);
1194 if (err < 0)
1195 return err;
1196
1197 /* Patching USB firmware files prior to starting any URBs of HCI path
1198 * It is more safe to use USB bulk channel for downloading USB patch
1199 */
1200 if (data->setup_on_usb) {
1201 err = data->setup_on_usb(hdev);
1202 if (err < 0)
1203 return err;
1204 }
1205
1206 data->intf->needs_remote_wakeup = 1;
1207
1208 /* Disable device remote wakeup when host is suspended
1209 * For Realtek chips, global suspend without
1210 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1211 */
1212 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1213 device_wakeup_disable(&data->udev->dev);
1214
1215 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1216 goto done;
1217
1218 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1219 if (err < 0)
1220 goto failed;
1221
1222 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1223 if (err < 0) {
1224 usb_kill_anchored_urbs(&data->intr_anchor);
1225 goto failed;
1226 }
1227
1228 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1229 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1230
1231 if (data->diag) {
1232 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1233 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1234 }
1235
1236done:
1237 usb_autopm_put_interface(data->intf);
1238 return 0;
1239
1240failed:
1241 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1242 usb_autopm_put_interface(data->intf);
1243 return err;
1244}
1245
1246static void btusb_stop_traffic(struct btusb_data *data)
1247{
1248 usb_kill_anchored_urbs(&data->intr_anchor);
1249 usb_kill_anchored_urbs(&data->bulk_anchor);
1250 usb_kill_anchored_urbs(&data->isoc_anchor);
1251 usb_kill_anchored_urbs(&data->diag_anchor);
1252 usb_kill_anchored_urbs(&data->ctrl_anchor);
1253}
1254
1255static int btusb_close(struct hci_dev *hdev)
1256{
1257 struct btusb_data *data = hci_get_drvdata(hdev);
1258 int err;
1259
1260 BT_DBG("%s", hdev->name);
1261
1262 cancel_work_sync(&data->work);
1263 cancel_work_sync(&data->waker);
1264
1265 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1266 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1267 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1268 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1269
1270 btusb_stop_traffic(data);
1271 btusb_free_frags(data);
1272
1273 err = usb_autopm_get_interface(data->intf);
1274 if (err < 0)
1275 goto failed;
1276
1277 data->intf->needs_remote_wakeup = 0;
1278
1279 /* Enable remote wake up for auto-suspend */
1280 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1281 data->intf->needs_remote_wakeup = 1;
1282
1283 usb_autopm_put_interface(data->intf);
1284
1285failed:
1286 usb_scuttle_anchored_urbs(&data->deferred);
1287 return 0;
1288}
1289
1290static int btusb_flush(struct hci_dev *hdev)
1291{
1292 struct btusb_data *data = hci_get_drvdata(hdev);
1293
1294 BT_DBG("%s", hdev->name);
1295
1296 usb_kill_anchored_urbs(&data->tx_anchor);
1297 btusb_free_frags(data);
1298
1299 return 0;
1300}
1301
1302static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1303{
1304 struct btusb_data *data = hci_get_drvdata(hdev);
1305 struct usb_ctrlrequest *dr;
1306 struct urb *urb;
1307 unsigned int pipe;
1308
1309 urb = usb_alloc_urb(0, GFP_KERNEL);
1310 if (!urb)
1311 return ERR_PTR(-ENOMEM);
1312
1313 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1314 if (!dr) {
1315 usb_free_urb(urb);
1316 return ERR_PTR(-ENOMEM);
1317 }
1318
1319 dr->bRequestType = data->cmdreq_type;
1320 dr->bRequest = data->cmdreq;
1321 dr->wIndex = 0;
1322 dr->wValue = 0;
1323 dr->wLength = __cpu_to_le16(skb->len);
1324
1325 pipe = usb_sndctrlpipe(data->udev, 0x00);
1326
1327 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1328 skb->data, skb->len, btusb_tx_complete, skb);
1329
1330 skb->dev = (void *)hdev;
1331
1332 return urb;
1333}
1334
1335static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1336{
1337 struct btusb_data *data = hci_get_drvdata(hdev);
1338 struct urb *urb;
1339 unsigned int pipe;
1340
1341 if (!data->bulk_tx_ep)
1342 return ERR_PTR(-ENODEV);
1343
1344 urb = usb_alloc_urb(0, GFP_KERNEL);
1345 if (!urb)
1346 return ERR_PTR(-ENOMEM);
1347
1348 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1349
1350 usb_fill_bulk_urb(urb, data->udev, pipe,
1351 skb->data, skb->len, btusb_tx_complete, skb);
1352
1353 skb->dev = (void *)hdev;
1354
1355 return urb;
1356}
1357
1358static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1359{
1360 struct btusb_data *data = hci_get_drvdata(hdev);
1361 struct urb *urb;
1362 unsigned int pipe;
1363
1364 if (!data->isoc_tx_ep)
1365 return ERR_PTR(-ENODEV);
1366
1367 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1368 if (!urb)
1369 return ERR_PTR(-ENOMEM);
1370
1371 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1372
1373 usb_fill_int_urb(urb, data->udev, pipe,
1374 skb->data, skb->len, btusb_isoc_tx_complete,
1375 skb, data->isoc_tx_ep->bInterval);
1376
1377 urb->transfer_flags = URB_ISO_ASAP;
1378
1379 __fill_isoc_descriptor(urb, skb->len,
1380 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1381
1382 skb->dev = (void *)hdev;
1383
1384 return urb;
1385}
1386
1387static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1388{
1389 struct btusb_data *data = hci_get_drvdata(hdev);
1390 int err;
1391
1392 usb_anchor_urb(urb, &data->tx_anchor);
1393
1394 err = usb_submit_urb(urb, GFP_KERNEL);
1395 if (err < 0) {
1396 if (err != -EPERM && err != -ENODEV)
1397 bt_dev_err(hdev, "urb %p submission failed (%d)",
1398 urb, -err);
1399 kfree(urb->setup_packet);
1400 usb_unanchor_urb(urb);
1401 } else {
1402 usb_mark_last_busy(data->udev);
1403 }
1404
1405 usb_free_urb(urb);
1406 return err;
1407}
1408
1409static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1410{
1411 struct btusb_data *data = hci_get_drvdata(hdev);
1412 unsigned long flags;
1413 bool suspending;
1414
1415 spin_lock_irqsave(&data->txlock, flags);
1416 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1417 if (!suspending)
1418 data->tx_in_flight++;
1419 spin_unlock_irqrestore(&data->txlock, flags);
1420
1421 if (!suspending)
1422 return submit_tx_urb(hdev, urb);
1423
1424 usb_anchor_urb(urb, &data->deferred);
1425 schedule_work(&data->waker);
1426
1427 usb_free_urb(urb);
1428 return 0;
1429}
1430
1431static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1432{
1433 struct urb *urb;
1434
1435 BT_DBG("%s", hdev->name);
1436
1437 switch (hci_skb_pkt_type(skb)) {
1438 case HCI_COMMAND_PKT:
1439 urb = alloc_ctrl_urb(hdev, skb);
1440 if (IS_ERR(urb))
1441 return PTR_ERR(urb);
1442
1443 hdev->stat.cmd_tx++;
1444 return submit_or_queue_tx_urb(hdev, urb);
1445
1446 case HCI_ACLDATA_PKT:
1447 urb = alloc_bulk_urb(hdev, skb);
1448 if (IS_ERR(urb))
1449 return PTR_ERR(urb);
1450
1451 hdev->stat.acl_tx++;
1452 return submit_or_queue_tx_urb(hdev, urb);
1453
1454 case HCI_SCODATA_PKT:
1455 if (hci_conn_num(hdev, SCO_LINK) < 1)
1456 return -ENODEV;
1457
1458 urb = alloc_isoc_urb(hdev, skb);
1459 if (IS_ERR(urb))
1460 return PTR_ERR(urb);
1461
1462 hdev->stat.sco_tx++;
1463 return submit_tx_urb(hdev, urb);
1464 }
1465
1466 return -EILSEQ;
1467}
1468
1469static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1470{
1471 struct btusb_data *data = hci_get_drvdata(hdev);
1472
1473 BT_DBG("%s evt %d", hdev->name, evt);
1474
1475 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1476 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1477 schedule_work(&data->work);
1478 }
1479}
1480
1481static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1482{
1483 struct btusb_data *data = hci_get_drvdata(hdev);
1484 struct usb_interface *intf = data->isoc;
1485 struct usb_endpoint_descriptor *ep_desc;
1486 int i, err;
1487
1488 if (!data->isoc)
1489 return -ENODEV;
1490
1491 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1492 if (err < 0) {
1493 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1494 return err;
1495 }
1496
1497 data->isoc_altsetting = altsetting;
1498
1499 data->isoc_tx_ep = NULL;
1500 data->isoc_rx_ep = NULL;
1501
1502 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1503 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1504
1505 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1506 data->isoc_tx_ep = ep_desc;
1507 continue;
1508 }
1509
1510 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1511 data->isoc_rx_ep = ep_desc;
1512 continue;
1513 }
1514 }
1515
1516 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1517 bt_dev_err(hdev, "invalid SCO descriptors");
1518 return -ENODEV;
1519 }
1520
1521 return 0;
1522}
1523
1524static void btusb_work(struct work_struct *work)
1525{
1526 struct btusb_data *data = container_of(work, struct btusb_data, work);
1527 struct hci_dev *hdev = data->hdev;
1528 int new_alts;
1529 int err;
1530
1531 if (data->sco_num > 0) {
1532 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1533 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1534 if (err < 0) {
1535 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1536 usb_kill_anchored_urbs(&data->isoc_anchor);
1537 return;
1538 }
1539
1540 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1541 }
1542
1543 if (hdev->voice_setting & 0x0020) {
1544 static const int alts[3] = { 2, 4, 5 };
1545
1546 new_alts = alts[data->sco_num - 1];
1547 } else {
1548 new_alts = data->sco_num;
1549 }
1550
1551 if (data->isoc_altsetting != new_alts) {
1552 unsigned long flags;
1553
1554 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1555 usb_kill_anchored_urbs(&data->isoc_anchor);
1556
1557 /* When isochronous alternate setting needs to be
1558 * changed, because SCO connection has been added
1559 * or removed, a packet fragment may be left in the
1560 * reassembling state. This could lead to wrongly
1561 * assembled fragments.
1562 *
1563 * Clear outstanding fragment when selecting a new
1564 * alternate setting.
1565 */
1566 spin_lock_irqsave(&data->rxlock, flags);
1567 kfree_skb(data->sco_skb);
1568 data->sco_skb = NULL;
1569 spin_unlock_irqrestore(&data->rxlock, flags);
1570
1571 if (__set_isoc_interface(hdev, new_alts) < 0)
1572 return;
1573 }
1574
1575 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1576 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1577 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1578 else
1579 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1580 }
1581 } else {
1582 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1583 usb_kill_anchored_urbs(&data->isoc_anchor);
1584
1585 __set_isoc_interface(hdev, 0);
1586 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1587 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1588 }
1589}
1590
1591static void btusb_waker(struct work_struct *work)
1592{
1593 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1594 int err;
1595
1596 err = usb_autopm_get_interface(data->intf);
1597 if (err < 0)
1598 return;
1599
1600 usb_autopm_put_interface(data->intf);
1601}
1602
1603static int btusb_setup_bcm92035(struct hci_dev *hdev)
1604{
1605 struct sk_buff *skb;
1606 u8 val = 0x00;
1607
1608 BT_DBG("%s", hdev->name);
1609
1610 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1611 if (IS_ERR(skb))
1612 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1613 else
1614 kfree_skb(skb);
1615
1616 return 0;
1617}
1618
1619static int btusb_setup_csr(struct hci_dev *hdev)
1620{
1621 struct hci_rp_read_local_version *rp;
1622 struct sk_buff *skb;
1623
1624 BT_DBG("%s", hdev->name);
1625
1626 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1627 HCI_INIT_TIMEOUT);
1628 if (IS_ERR(skb)) {
1629 int err = PTR_ERR(skb);
1630 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1631 return err;
1632 }
1633
1634 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1635 bt_dev_err(hdev, "CSR: Local version length mismatch");
1636 kfree_skb(skb);
1637 return -EIO;
1638 }
1639
1640 rp = (struct hci_rp_read_local_version *)skb->data;
1641
1642 /* Detect controllers which aren't real CSR ones. */
1643 if (le16_to_cpu(rp->manufacturer) != 10 ||
1644 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1645 /* Clear the reset quirk since this is not an actual
1646 * early Bluetooth 1.1 device from CSR.
1647 */
1648 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1649
1650 /* These fake CSR controllers have all a broken
1651 * stored link key handling and so just disable it.
1652 */
1653 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1654 }
1655
1656 kfree_skb(skb);
1657
1658 return 0;
1659}
1660
1661static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1662 struct intel_version *ver)
1663{
1664 const struct firmware *fw;
1665 char fwname[64];
1666 int ret;
1667
1668 snprintf(fwname, sizeof(fwname),
1669 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1670 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1671 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1672 ver->fw_build_ww, ver->fw_build_yy);
1673
1674 ret = request_firmware(&fw, fwname, &hdev->dev);
1675 if (ret < 0) {
1676 if (ret == -EINVAL) {
1677 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1678 ret);
1679 return NULL;
1680 }
1681
1682 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1683 fwname, ret);
1684
1685 /* If the correct firmware patch file is not found, use the
1686 * default firmware patch file instead
1687 */
1688 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1689 ver->hw_platform, ver->hw_variant);
1690 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1691 bt_dev_err(hdev, "failed to open default fw file: %s",
1692 fwname);
1693 return NULL;
1694 }
1695 }
1696
1697 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1698
1699 return fw;
1700}
1701
1702static int btusb_setup_intel_patching(struct hci_dev *hdev,
1703 const struct firmware *fw,
1704 const u8 **fw_ptr, int *disable_patch)
1705{
1706 struct sk_buff *skb;
1707 struct hci_command_hdr *cmd;
1708 const u8 *cmd_param;
1709 struct hci_event_hdr *evt = NULL;
1710 const u8 *evt_param = NULL;
1711 int remain = fw->size - (*fw_ptr - fw->data);
1712
1713 /* The first byte indicates the types of the patch command or event.
1714 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1715 * in the current firmware buffer doesn't start with 0x01 or
1716 * the size of remain buffer is smaller than HCI command header,
1717 * the firmware file is corrupted and it should stop the patching
1718 * process.
1719 */
1720 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1721 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1722 return -EINVAL;
1723 }
1724 (*fw_ptr)++;
1725 remain--;
1726
1727 cmd = (struct hci_command_hdr *)(*fw_ptr);
1728 *fw_ptr += sizeof(*cmd);
1729 remain -= sizeof(*cmd);
1730
1731 /* Ensure that the remain firmware data is long enough than the length
1732 * of command parameter. If not, the firmware file is corrupted.
1733 */
1734 if (remain < cmd->plen) {
1735 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1736 return -EFAULT;
1737 }
1738
1739 /* If there is a command that loads a patch in the firmware
1740 * file, then enable the patch upon success, otherwise just
1741 * disable the manufacturer mode, for example patch activation
1742 * is not required when the default firmware patch file is used
1743 * because there are no patch data to load.
1744 */
1745 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1746 *disable_patch = 0;
1747
1748 cmd_param = *fw_ptr;
1749 *fw_ptr += cmd->plen;
1750 remain -= cmd->plen;
1751
1752 /* This reads the expected events when the above command is sent to the
1753 * device. Some vendor commands expects more than one events, for
1754 * example command status event followed by vendor specific event.
1755 * For this case, it only keeps the last expected event. so the command
1756 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1757 * last expected event.
1758 */
1759 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1760 (*fw_ptr)++;
1761 remain--;
1762
1763 evt = (struct hci_event_hdr *)(*fw_ptr);
1764 *fw_ptr += sizeof(*evt);
1765 remain -= sizeof(*evt);
1766
1767 if (remain < evt->plen) {
1768 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1769 return -EFAULT;
1770 }
1771
1772 evt_param = *fw_ptr;
1773 *fw_ptr += evt->plen;
1774 remain -= evt->plen;
1775 }
1776
1777 /* Every HCI commands in the firmware file has its correspond event.
1778 * If event is not found or remain is smaller than zero, the firmware
1779 * file is corrupted.
1780 */
1781 if (!evt || !evt_param || remain < 0) {
1782 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1783 return -EFAULT;
1784 }
1785
1786 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1787 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1788 if (IS_ERR(skb)) {
1789 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1790 cmd->opcode, PTR_ERR(skb));
1791 return PTR_ERR(skb);
1792 }
1793
1794 /* It ensures that the returned event matches the event data read from
1795 * the firmware file. At fist, it checks the length and then
1796 * the contents of the event.
1797 */
1798 if (skb->len != evt->plen) {
1799 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1800 le16_to_cpu(cmd->opcode));
1801 kfree_skb(skb);
1802 return -EFAULT;
1803 }
1804
1805 if (memcmp(skb->data, evt_param, evt->plen)) {
1806 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1807 le16_to_cpu(cmd->opcode));
1808 kfree_skb(skb);
1809 return -EFAULT;
1810 }
1811 kfree_skb(skb);
1812
1813 return 0;
1814}
1815
1816static int btusb_setup_intel(struct hci_dev *hdev)
1817{
1818 struct sk_buff *skb;
1819 const struct firmware *fw;
1820 const u8 *fw_ptr;
1821 int disable_patch, err;
1822 struct intel_version ver;
1823
1824 BT_DBG("%s", hdev->name);
1825
1826 /* The controller has a bug with the first HCI command sent to it
1827 * returning number of completed commands as zero. This would stall the
1828 * command processing in the Bluetooth core.
1829 *
1830 * As a workaround, send HCI Reset command first which will reset the
1831 * number of completed commands and allow normal command processing
1832 * from now on.
1833 */
1834 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1835 if (IS_ERR(skb)) {
1836 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1837 PTR_ERR(skb));
1838 return PTR_ERR(skb);
1839 }
1840 kfree_skb(skb);
1841
1842 /* Read Intel specific controller version first to allow selection of
1843 * which firmware file to load.
1844 *
1845 * The returned information are hardware variant and revision plus
1846 * firmware variant, revision and build number.
1847 */
1848 err = btintel_read_version(hdev, &ver);
1849 if (err)
1850 return err;
1851
1852 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1853 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1854 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1855 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1856
1857 /* fw_patch_num indicates the version of patch the device currently
1858 * have. If there is no patch data in the device, it is always 0x00.
1859 * So, if it is other than 0x00, no need to patch the device again.
1860 */
1861 if (ver.fw_patch_num) {
1862 bt_dev_info(hdev, "Intel device is already patched. "
1863 "patch num: %02x", ver.fw_patch_num);
1864 goto complete;
1865 }
1866
1867 /* Opens the firmware patch file based on the firmware version read
1868 * from the controller. If it fails to open the matching firmware
1869 * patch file, it tries to open the default firmware patch file.
1870 * If no patch file is found, allow the device to operate without
1871 * a patch.
1872 */
1873 fw = btusb_setup_intel_get_fw(hdev, &ver);
1874 if (!fw)
1875 goto complete;
1876 fw_ptr = fw->data;
1877
1878 /* Enable the manufacturer mode of the controller.
1879 * Only while this mode is enabled, the driver can download the
1880 * firmware patch data and configuration parameters.
1881 */
1882 err = btintel_enter_mfg(hdev);
1883 if (err) {
1884 release_firmware(fw);
1885 return err;
1886 }
1887
1888 disable_patch = 1;
1889
1890 /* The firmware data file consists of list of Intel specific HCI
1891 * commands and its expected events. The first byte indicates the
1892 * type of the message, either HCI command or HCI event.
1893 *
1894 * It reads the command and its expected event from the firmware file,
1895 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1896 * the returned event is compared with the event read from the firmware
1897 * file and it will continue until all the messages are downloaded to
1898 * the controller.
1899 *
1900 * Once the firmware patching is completed successfully,
1901 * the manufacturer mode is disabled with reset and activating the
1902 * downloaded patch.
1903 *
1904 * If the firmware patching fails, the manufacturer mode is
1905 * disabled with reset and deactivating the patch.
1906 *
1907 * If the default patch file is used, no reset is done when disabling
1908 * the manufacturer.
1909 */
1910 while (fw->size > fw_ptr - fw->data) {
1911 int ret;
1912
1913 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1914 &disable_patch);
1915 if (ret < 0)
1916 goto exit_mfg_deactivate;
1917 }
1918
1919 release_firmware(fw);
1920
1921 if (disable_patch)
1922 goto exit_mfg_disable;
1923
1924 /* Patching completed successfully and disable the manufacturer mode
1925 * with reset and activate the downloaded firmware patches.
1926 */
1927 err = btintel_exit_mfg(hdev, true, true);
1928 if (err)
1929 return err;
1930
1931 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1932
1933 goto complete;
1934
1935exit_mfg_disable:
1936 /* Disable the manufacturer mode without reset */
1937 err = btintel_exit_mfg(hdev, false, false);
1938 if (err)
1939 return err;
1940
1941 bt_dev_info(hdev, "Intel firmware patch completed");
1942
1943 goto complete;
1944
1945exit_mfg_deactivate:
1946 release_firmware(fw);
1947
1948 /* Patching failed. Disable the manufacturer mode with reset and
1949 * deactivate the downloaded firmware patches.
1950 */
1951 err = btintel_exit_mfg(hdev, true, false);
1952 if (err)
1953 return err;
1954
1955 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1956
1957complete:
1958 /* Set the event mask for Intel specific vendor events. This enables
1959 * a few extra events that are useful during general operation.
1960 */
1961 btintel_set_event_mask_mfg(hdev, false);
1962
1963 btintel_check_bdaddr(hdev);
1964 return 0;
1965}
1966
1967static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1968{
1969 struct sk_buff *skb;
1970 struct hci_event_hdr *hdr;
1971 struct hci_ev_cmd_complete *evt;
1972
1973 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1974 if (!skb)
1975 return -ENOMEM;
1976
1977 hdr = skb_put(skb, sizeof(*hdr));
1978 hdr->evt = HCI_EV_CMD_COMPLETE;
1979 hdr->plen = sizeof(*evt) + 1;
1980
1981 evt = skb_put(skb, sizeof(*evt));
1982 evt->ncmd = 0x01;
1983 evt->opcode = cpu_to_le16(opcode);
1984
1985 skb_put_u8(skb, 0x00);
1986
1987 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1988
1989 return hci_recv_frame(hdev, skb);
1990}
1991
1992static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1993 int count)
1994{
1995 /* When the device is in bootloader mode, then it can send
1996 * events via the bulk endpoint. These events are treated the
1997 * same way as the ones received from the interrupt endpoint.
1998 */
1999 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2000 return btusb_recv_intr(data, buffer, count);
2001
2002 return btusb_recv_bulk(data, buffer, count);
2003}
2004
2005static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2006 unsigned int len)
2007{
2008 const struct intel_bootup *evt = ptr;
2009
2010 if (len != sizeof(*evt))
2011 return;
2012
2013 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
2014 wake_up_bit(&data->flags, BTUSB_BOOTING);
2015}
2016
2017static void btusb_intel_secure_send_result(struct btusb_data *data,
2018 const void *ptr, unsigned int len)
2019{
2020 const struct intel_secure_send_result *evt = ptr;
2021
2022 if (len != sizeof(*evt))
2023 return;
2024
2025 if (evt->result)
2026 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2027
2028 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2029 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
2030 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2031}
2032
2033static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2034{
2035 struct btusb_data *data = hci_get_drvdata(hdev);
2036
2037 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2038 struct hci_event_hdr *hdr = (void *)skb->data;
2039
2040 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2041 hdr->plen > 0) {
2042 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2043 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2044
2045 switch (skb->data[2]) {
2046 case 0x02:
2047 /* When switching to the operational firmware
2048 * the device sends a vendor specific event
2049 * indicating that the bootup completed.
2050 */
2051 btusb_intel_bootup(data, ptr, len);
2052 break;
2053 case 0x06:
2054 /* When the firmware loading completes the
2055 * device sends out a vendor specific event
2056 * indicating the result of the firmware
2057 * loading.
2058 */
2059 btusb_intel_secure_send_result(data, ptr, len);
2060 break;
2061 }
2062 }
2063 }
2064
2065 return hci_recv_frame(hdev, skb);
2066}
2067
2068static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2069{
2070 struct btusb_data *data = hci_get_drvdata(hdev);
2071 struct urb *urb;
2072
2073 BT_DBG("%s", hdev->name);
2074
2075 switch (hci_skb_pkt_type(skb)) {
2076 case HCI_COMMAND_PKT:
2077 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2078 struct hci_command_hdr *cmd = (void *)skb->data;
2079 __u16 opcode = le16_to_cpu(cmd->opcode);
2080
2081 /* When in bootloader mode and the command 0xfc09
2082 * is received, it needs to be send down the
2083 * bulk endpoint. So allocate a bulk URB instead.
2084 */
2085 if (opcode == 0xfc09)
2086 urb = alloc_bulk_urb(hdev, skb);
2087 else
2088 urb = alloc_ctrl_urb(hdev, skb);
2089
2090 /* When the 0xfc01 command is issued to boot into
2091 * the operational firmware, it will actually not
2092 * send a command complete event. To keep the flow
2093 * control working inject that event here.
2094 */
2095 if (opcode == 0xfc01)
2096 inject_cmd_complete(hdev, opcode);
2097 } else {
2098 urb = alloc_ctrl_urb(hdev, skb);
2099 }
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
2126 return -EILSEQ;
2127}
2128
2129static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2130 struct intel_boot_params *params,
2131 char *fw_name, size_t len,
2132 const char *suffix)
2133{
2134 switch (ver->hw_variant) {
2135 case 0x0b: /* SfP */
2136 case 0x0c: /* WsP */
2137 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2138 le16_to_cpu(ver->hw_variant),
2139 le16_to_cpu(params->dev_revid),
2140 suffix);
2141 break;
2142 case 0x11: /* JfP */
2143 case 0x12: /* ThP */
2144 case 0x13: /* HrP */
2145 case 0x14: /* CcP */
2146 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2147 le16_to_cpu(ver->hw_variant),
2148 le16_to_cpu(ver->hw_revision),
2149 le16_to_cpu(ver->fw_revision),
2150 suffix);
2151 break;
2152 default:
2153 return false;
2154 }
2155 return true;
2156}
2157
2158static int btusb_setup_intel_new(struct hci_dev *hdev)
2159{
2160 struct btusb_data *data = hci_get_drvdata(hdev);
2161 struct intel_version ver;
2162 struct intel_boot_params params;
2163 const struct firmware *fw;
2164 u32 boot_param;
2165 char fwname[64];
2166 ktime_t calltime, delta, rettime;
2167 unsigned long long duration;
2168 int err;
2169
2170 BT_DBG("%s", hdev->name);
2171
2172 /* Set the default boot parameter to 0x0 and it is updated to
2173 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2174 * command while downloading the firmware.
2175 */
2176 boot_param = 0x00000000;
2177
2178 calltime = ktime_get();
2179
2180 /* Read the Intel version information to determine if the device
2181 * is in bootloader mode or if it already has operational firmware
2182 * loaded.
2183 */
2184 err = btintel_read_version(hdev, &ver);
2185 if (err)
2186 return err;
2187
2188 /* The hardware platform number has a fixed value of 0x37 and
2189 * for now only accept this single value.
2190 */
2191 if (ver.hw_platform != 0x37) {
2192 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2193 ver.hw_platform);
2194 return -EINVAL;
2195 }
2196
2197 /* Check for supported iBT hardware variants of this firmware
2198 * loading method.
2199 *
2200 * This check has been put in place to ensure correct forward
2201 * compatibility options when newer hardware variants come along.
2202 */
2203 switch (ver.hw_variant) {
2204 case 0x0b: /* SfP */
2205 case 0x0c: /* WsP */
2206 case 0x11: /* JfP */
2207 case 0x12: /* ThP */
2208 case 0x13: /* HrP */
2209 case 0x14: /* CcP */
2210 break;
2211 default:
2212 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2213 ver.hw_variant);
2214 return -EINVAL;
2215 }
2216
2217 btintel_version_info(hdev, &ver);
2218
2219 /* The firmware variant determines if the device is in bootloader
2220 * mode or is running operational firmware. The value 0x06 identifies
2221 * the bootloader and the value 0x23 identifies the operational
2222 * firmware.
2223 *
2224 * When the operational firmware is already present, then only
2225 * the check for valid Bluetooth device address is needed. This
2226 * determines if the device will be added as configured or
2227 * unconfigured controller.
2228 *
2229 * It is not possible to use the Secure Boot Parameters in this
2230 * case since that command is only available in bootloader mode.
2231 */
2232 if (ver.fw_variant == 0x23) {
2233 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2234 btintel_check_bdaddr(hdev);
2235 return 0;
2236 }
2237
2238 /* If the device is not in bootloader mode, then the only possible
2239 * choice is to return an error and abort the device initialization.
2240 */
2241 if (ver.fw_variant != 0x06) {
2242 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2243 ver.fw_variant);
2244 return -ENODEV;
2245 }
2246
2247 /* Read the secure boot parameters to identify the operating
2248 * details of the bootloader.
2249 */
2250 err = btintel_read_boot_params(hdev, ¶ms);
2251 if (err)
2252 return err;
2253
2254 /* It is required that every single firmware fragment is acknowledged
2255 * with a command complete event. If the boot parameters indicate
2256 * that this bootloader does not send them, then abort the setup.
2257 */
2258 if (params.limited_cce != 0x00) {
2259 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2260 params.limited_cce);
2261 return -EINVAL;
2262 }
2263
2264 /* If the OTP has no valid Bluetooth device address, then there will
2265 * also be no valid address for the operational firmware.
2266 */
2267 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) {
2268 bt_dev_info(hdev, "No device address configured");
2269 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2270 }
2271
2272 /* With this Intel bootloader only the hardware variant and device
2273 * revision information are used to select the right firmware for SfP
2274 * and WsP.
2275 *
2276 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2277 *
2278 * Currently the supported hardware variants are:
2279 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2280 * 12 (0x0c) for iBT3.5 (WsP)
2281 *
2282 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2283 * variant, HW revision and FW revision, as these are dependent on CNVi
2284 * and RF Combination.
2285 *
2286 * 17 (0x11) for iBT3.5 (JfP)
2287 * 18 (0x12) for iBT3.5 (ThP)
2288 *
2289 * The firmware file name for these will be
2290 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2291 *
2292 */
2293 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2294 sizeof(fwname), "sfi");
2295 if (!err) {
2296 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2297 return -EINVAL;
2298 }
2299
2300 err = request_firmware(&fw, fwname, &hdev->dev);
2301 if (err < 0) {
2302 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2303 return err;
2304 }
2305
2306 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2307
2308 /* Save the DDC file name for later use to apply once the firmware
2309 * downloading is done.
2310 */
2311 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2312 sizeof(fwname), "ddc");
2313 if (!err) {
2314 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2315 return -EINVAL;
2316 }
2317
2318 if (fw->size < 644) {
2319 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2320 fw->size);
2321 err = -EBADF;
2322 goto done;
2323 }
2324
2325 set_bit(BTUSB_DOWNLOADING, &data->flags);
2326
2327 /* Start firmware downloading and get boot parameter */
2328 err = btintel_download_firmware(hdev, fw, &boot_param);
2329 if (err < 0)
2330 goto done;
2331
2332 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2333
2334 bt_dev_info(hdev, "Waiting for firmware download to complete");
2335
2336 /* Before switching the device into operational mode and with that
2337 * booting the loaded firmware, wait for the bootloader notification
2338 * that all fragments have been successfully received.
2339 *
2340 * When the event processing receives the notification, then the
2341 * BTUSB_DOWNLOADING flag will be cleared.
2342 *
2343 * The firmware loading should not take longer than 5 seconds
2344 * and thus just timeout if that happens and fail the setup
2345 * of this device.
2346 */
2347 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2348 TASK_INTERRUPTIBLE,
2349 msecs_to_jiffies(5000));
2350 if (err == -EINTR) {
2351 bt_dev_err(hdev, "Firmware loading interrupted");
2352 goto done;
2353 }
2354
2355 if (err) {
2356 bt_dev_err(hdev, "Firmware loading timeout");
2357 err = -ETIMEDOUT;
2358 goto done;
2359 }
2360
2361 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2362 bt_dev_err(hdev, "Firmware loading failed");
2363 err = -ENOEXEC;
2364 goto done;
2365 }
2366
2367 rettime = ktime_get();
2368 delta = ktime_sub(rettime, calltime);
2369 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2370
2371 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2372
2373done:
2374 release_firmware(fw);
2375
2376 if (err < 0)
2377 return err;
2378
2379 calltime = ktime_get();
2380
2381 set_bit(BTUSB_BOOTING, &data->flags);
2382
2383 err = btintel_send_intel_reset(hdev, boot_param);
2384 if (err)
2385 return err;
2386
2387 /* The bootloader will not indicate when the device is ready. This
2388 * is done by the operational firmware sending bootup notification.
2389 *
2390 * Booting into operational firmware should not take longer than
2391 * 1 second. However if that happens, then just fail the setup
2392 * since something went wrong.
2393 */
2394 bt_dev_info(hdev, "Waiting for device to boot");
2395
2396 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2397 TASK_INTERRUPTIBLE,
2398 msecs_to_jiffies(1000));
2399
2400 if (err == -EINTR) {
2401 bt_dev_err(hdev, "Device boot interrupted");
2402 return -EINTR;
2403 }
2404
2405 if (err) {
2406 bt_dev_err(hdev, "Device boot timeout");
2407 return -ETIMEDOUT;
2408 }
2409
2410 rettime = ktime_get();
2411 delta = ktime_sub(rettime, calltime);
2412 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2413
2414 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2415
2416 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2417
2418 /* Once the device is running in operational mode, it needs to apply
2419 * the device configuration (DDC) parameters.
2420 *
2421 * The device can work without DDC parameters, so even if it fails
2422 * to load the file, no need to fail the setup.
2423 */
2424 btintel_load_ddc_config(hdev, fwname);
2425
2426 /* Set the event mask for Intel specific vendor events. This enables
2427 * a few extra events that are useful during general operation. It
2428 * does not enable any debugging related events.
2429 *
2430 * The device will function correctly without these events enabled
2431 * and thus no need to fail the setup.
2432 */
2433 btintel_set_event_mask(hdev, false);
2434
2435 return 0;
2436}
2437
2438static int btusb_shutdown_intel(struct hci_dev *hdev)
2439{
2440 struct sk_buff *skb;
2441 long ret;
2442
2443 /* In the shutdown sequence where Bluetooth is turned off followed
2444 * by WiFi being turned off, turning WiFi back on causes issue with
2445 * the RF calibration.
2446 *
2447 * To ensure that any RF activity has been stopped, issue HCI Reset
2448 * command to clear all ongoing activity including advertising,
2449 * scanning etc.
2450 */
2451 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2452 if (IS_ERR(skb)) {
2453 ret = PTR_ERR(skb);
2454 bt_dev_err(hdev, "HCI reset during shutdown failed");
2455 return ret;
2456 }
2457 kfree_skb(skb);
2458
2459 /* Some platforms have an issue with BT LED when the interface is
2460 * down or BT radio is turned off, which takes 5 seconds to BT LED
2461 * goes off. This command turns off the BT LED immediately.
2462 */
2463 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2464 if (IS_ERR(skb)) {
2465 ret = PTR_ERR(skb);
2466 bt_dev_err(hdev, "turning off Intel device LED failed");
2467 return ret;
2468 }
2469 kfree_skb(skb);
2470
2471 return 0;
2472}
2473
2474static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2475{
2476 struct sk_buff *skb;
2477
2478 /* Send HCI Reset to the controller to stop any BT activity which
2479 * were triggered. This will help to save power and maintain the
2480 * sync b/w Host and controller
2481 */
2482 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2483 if (IS_ERR(skb)) {
2484 bt_dev_err(hdev, "HCI reset during shutdown failed");
2485 return PTR_ERR(skb);
2486 }
2487 kfree_skb(skb);
2488
2489 return 0;
2490}
2491
2492#ifdef CONFIG_BT_HCIBTUSB_MTK
2493
2494#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
2495#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2496
2497#define HCI_WMT_MAX_EVENT_SIZE 64
2498
2499enum {
2500 BTMTK_WMT_PATCH_DWNLD = 0x1,
2501 BTMTK_WMT_FUNC_CTRL = 0x6,
2502 BTMTK_WMT_RST = 0x7,
2503 BTMTK_WMT_SEMAPHORE = 0x17,
2504};
2505
2506enum {
2507 BTMTK_WMT_INVALID,
2508 BTMTK_WMT_PATCH_UNDONE,
2509 BTMTK_WMT_PATCH_DONE,
2510 BTMTK_WMT_ON_UNDONE,
2511 BTMTK_WMT_ON_DONE,
2512 BTMTK_WMT_ON_PROGRESS,
2513};
2514
2515struct btmtk_wmt_hdr {
2516 u8 dir;
2517 u8 op;
2518 __le16 dlen;
2519 u8 flag;
2520} __packed;
2521
2522struct btmtk_hci_wmt_cmd {
2523 struct btmtk_wmt_hdr hdr;
2524 u8 data[256];
2525} __packed;
2526
2527struct btmtk_hci_wmt_evt {
2528 struct hci_event_hdr hhdr;
2529 struct btmtk_wmt_hdr whdr;
2530} __packed;
2531
2532struct btmtk_hci_wmt_evt_funcc {
2533 struct btmtk_hci_wmt_evt hwhdr;
2534 __be16 status;
2535} __packed;
2536
2537struct btmtk_tci_sleep {
2538 u8 mode;
2539 __le16 duration;
2540 __le16 host_duration;
2541 u8 host_wakeup_pin;
2542 u8 time_compensation;
2543} __packed;
2544
2545struct btmtk_hci_wmt_params {
2546 u8 op;
2547 u8 flag;
2548 u16 dlen;
2549 const void *data;
2550 u32 *status;
2551};
2552
2553static void btusb_mtk_wmt_recv(struct urb *urb)
2554{
2555 struct hci_dev *hdev = urb->context;
2556 struct btusb_data *data = hci_get_drvdata(hdev);
2557 struct hci_event_hdr *hdr;
2558 struct sk_buff *skb;
2559 int err;
2560
2561 if (urb->status == 0 && urb->actual_length > 0) {
2562 hdev->stat.byte_rx += urb->actual_length;
2563
2564 /* WMT event shouldn't be fragmented and the size should be
2565 * less than HCI_WMT_MAX_EVENT_SIZE.
2566 */
2567 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2568 if (!skb) {
2569 hdev->stat.err_rx++;
2570 goto err_out;
2571 }
2572
2573 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2574 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2575
2576 hdr = (void *)skb->data;
2577 /* Fix up the vendor event id with 0xff for vendor specific
2578 * instead of 0xe4 so that event send via monitoring socket can
2579 * be parsed properly.
2580 */
2581 hdr->evt = 0xff;
2582
2583 /* When someone waits for the WMT event, the skb is being cloned
2584 * and being processed the events from there then.
2585 */
2586 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2587 data->evt_skb = skb_clone(skb, GFP_KERNEL);
2588 if (!data->evt_skb)
2589 goto err_out;
2590 }
2591
2592 err = hci_recv_frame(hdev, skb);
2593 if (err < 0)
2594 goto err_free_skb;
2595
2596 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2597 &data->flags)) {
2598 /* Barrier to sync with other CPUs */
2599 smp_mb__after_atomic();
2600 wake_up_bit(&data->flags,
2601 BTUSB_TX_WAIT_VND_EVT);
2602 }
2603err_out:
2604 return;
2605err_free_skb:
2606 kfree_skb(data->evt_skb);
2607 data->evt_skb = NULL;
2608 return;
2609 } else if (urb->status == -ENOENT) {
2610 /* Avoid suspend failed when usb_kill_urb */
2611 return;
2612 }
2613
2614 usb_mark_last_busy(data->udev);
2615
2616 /* The URB complete handler is still called with urb->actual_length = 0
2617 * when the event is not available, so we should keep re-submitting
2618 * URB until WMT event returns, Also, It's necessary to wait some time
2619 * between the two consecutive control URBs to relax the target device
2620 * to generate the event. Otherwise, the WMT event cannot return from
2621 * the device successfully.
2622 */
2623 udelay(100);
2624
2625 usb_anchor_urb(urb, &data->ctrl_anchor);
2626 err = usb_submit_urb(urb, GFP_ATOMIC);
2627 if (err < 0) {
2628 /* -EPERM: urb is being killed;
2629 * -ENODEV: device got disconnected
2630 */
2631 if (err != -EPERM && err != -ENODEV)
2632 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2633 urb, -err);
2634 usb_unanchor_urb(urb);
2635 }
2636}
2637
2638static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2639{
2640 struct btusb_data *data = hci_get_drvdata(hdev);
2641 struct usb_ctrlrequest *dr;
2642 unsigned char *buf;
2643 int err, size = 64;
2644 unsigned int pipe;
2645 struct urb *urb;
2646
2647 urb = usb_alloc_urb(0, GFP_KERNEL);
2648 if (!urb)
2649 return -ENOMEM;
2650
2651 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2652 if (!dr) {
2653 usb_free_urb(urb);
2654 return -ENOMEM;
2655 }
2656
2657 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2658 dr->bRequest = 1;
2659 dr->wIndex = cpu_to_le16(0);
2660 dr->wValue = cpu_to_le16(48);
2661 dr->wLength = cpu_to_le16(size);
2662
2663 buf = kmalloc(size, GFP_KERNEL);
2664 if (!buf) {
2665 kfree(dr);
2666 return -ENOMEM;
2667 }
2668
2669 pipe = usb_rcvctrlpipe(data->udev, 0);
2670
2671 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2672 buf, size, btusb_mtk_wmt_recv, hdev);
2673
2674 urb->transfer_flags |= URB_FREE_BUFFER;
2675
2676 usb_anchor_urb(urb, &data->ctrl_anchor);
2677 err = usb_submit_urb(urb, GFP_KERNEL);
2678 if (err < 0) {
2679 if (err != -EPERM && err != -ENODEV)
2680 bt_dev_err(hdev, "urb %p submission failed (%d)",
2681 urb, -err);
2682 usb_unanchor_urb(urb);
2683 }
2684
2685 usb_free_urb(urb);
2686
2687 return err;
2688}
2689
2690static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2691 struct btmtk_hci_wmt_params *wmt_params)
2692{
2693 struct btusb_data *data = hci_get_drvdata(hdev);
2694 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2695 u32 hlen, status = BTMTK_WMT_INVALID;
2696 struct btmtk_hci_wmt_evt *wmt_evt;
2697 struct btmtk_hci_wmt_cmd wc;
2698 struct btmtk_wmt_hdr *hdr;
2699 int err;
2700
2701 /* Submit control IN URB on demand to process the WMT event */
2702 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2703 if (err < 0)
2704 return err;
2705
2706 /* Send the WMT command and wait until the WMT event returns */
2707 hlen = sizeof(*hdr) + wmt_params->dlen;
2708 if (hlen > 255)
2709 return -EINVAL;
2710
2711 hdr = (struct btmtk_wmt_hdr *)&wc;
2712 hdr->dir = 1;
2713 hdr->op = wmt_params->op;
2714 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2715 hdr->flag = wmt_params->flag;
2716 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2717
2718 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2719
2720 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2721
2722 if (err < 0) {
2723 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2724 return err;
2725 }
2726
2727 /* The vendor specific WMT commands are all answered by a vendor
2728 * specific event and will have the Command Status or Command
2729 * Complete as with usual HCI command flow control.
2730 *
2731 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2732 * state to be cleared. The driver specific event receive routine
2733 * will clear that state and with that indicate completion of the
2734 * WMT command.
2735 */
2736 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2737 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2738 if (err == -EINTR) {
2739 bt_dev_err(hdev, "Execution of wmt command interrupted");
2740 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2741 return err;
2742 }
2743
2744 if (err) {
2745 bt_dev_err(hdev, "Execution of wmt command timed out");
2746 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2747 return -ETIMEDOUT;
2748 }
2749
2750 /* Parse and handle the return WMT event */
2751 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2752 if (wmt_evt->whdr.op != hdr->op) {
2753 bt_dev_err(hdev, "Wrong op received %d expected %d",
2754 wmt_evt->whdr.op, hdr->op);
2755 err = -EIO;
2756 goto err_free_skb;
2757 }
2758
2759 switch (wmt_evt->whdr.op) {
2760 case BTMTK_WMT_SEMAPHORE:
2761 if (wmt_evt->whdr.flag == 2)
2762 status = BTMTK_WMT_PATCH_UNDONE;
2763 else
2764 status = BTMTK_WMT_PATCH_DONE;
2765 break;
2766 case BTMTK_WMT_FUNC_CTRL:
2767 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2768 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2769 status = BTMTK_WMT_ON_DONE;
2770 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2771 status = BTMTK_WMT_ON_PROGRESS;
2772 else
2773 status = BTMTK_WMT_ON_UNDONE;
2774 break;
2775 }
2776
2777 if (wmt_params->status)
2778 *wmt_params->status = status;
2779
2780err_free_skb:
2781 kfree_skb(data->evt_skb);
2782 data->evt_skb = NULL;
2783
2784 return err;
2785}
2786
2787static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2788{
2789 struct btmtk_hci_wmt_params wmt_params;
2790 const struct firmware *fw;
2791 const u8 *fw_ptr;
2792 size_t fw_size;
2793 int err, dlen;
2794 u8 flag;
2795
2796 err = request_firmware(&fw, fwname, &hdev->dev);
2797 if (err < 0) {
2798 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2799 return err;
2800 }
2801
2802 fw_ptr = fw->data;
2803 fw_size = fw->size;
2804
2805 /* The size of patch header is 30 bytes, should be skip */
2806 if (fw_size < 30) {
2807 err = -EINVAL;
2808 goto err_release_fw;
2809 }
2810
2811 fw_size -= 30;
2812 fw_ptr += 30;
2813 flag = 1;
2814
2815 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2816 wmt_params.status = NULL;
2817
2818 while (fw_size > 0) {
2819 dlen = min_t(int, 250, fw_size);
2820
2821 /* Tell deivice the position in sequence */
2822 if (fw_size - dlen <= 0)
2823 flag = 3;
2824 else if (fw_size < fw->size - 30)
2825 flag = 2;
2826
2827 wmt_params.flag = flag;
2828 wmt_params.dlen = dlen;
2829 wmt_params.data = fw_ptr;
2830
2831 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2832 if (err < 0) {
2833 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2834 err);
2835 goto err_release_fw;
2836 }
2837
2838 fw_size -= dlen;
2839 fw_ptr += dlen;
2840 }
2841
2842 wmt_params.op = BTMTK_WMT_RST;
2843 wmt_params.flag = 4;
2844 wmt_params.dlen = 0;
2845 wmt_params.data = NULL;
2846 wmt_params.status = NULL;
2847
2848 /* Activate funciton the firmware providing to */
2849 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2850 if (err < 0) {
2851 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2852 return err;
2853 }
2854
2855 /* Wait a few moments for firmware activation done */
2856 usleep_range(10000, 12000);
2857
2858err_release_fw:
2859 release_firmware(fw);
2860
2861 return err;
2862}
2863
2864static int btusb_mtk_func_query(struct hci_dev *hdev)
2865{
2866 struct btmtk_hci_wmt_params wmt_params;
2867 int status, err;
2868 u8 param = 0;
2869
2870 /* Query whether the function is enabled */
2871 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2872 wmt_params.flag = 4;
2873 wmt_params.dlen = sizeof(param);
2874 wmt_params.data = ¶m;
2875 wmt_params.status = &status;
2876
2877 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2878 if (err < 0) {
2879 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2880 return err;
2881 }
2882
2883 return status;
2884}
2885
2886static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2887{
2888 int pipe, err, size = sizeof(u32);
2889 void *buf;
2890
2891 buf = kzalloc(size, GFP_KERNEL);
2892 if (!buf)
2893 return -ENOMEM;
2894
2895 pipe = usb_rcvctrlpipe(data->udev, 0);
2896 err = usb_control_msg(data->udev, pipe, 0x63,
2897 USB_TYPE_VENDOR | USB_DIR_IN,
2898 reg >> 16, reg & 0xffff,
2899 buf, size, USB_CTRL_SET_TIMEOUT);
2900 if (err < 0)
2901 goto err_free_buf;
2902
2903 *val = get_unaligned_le32(buf);
2904
2905err_free_buf:
2906 kfree(buf);
2907
2908 return err;
2909}
2910
2911static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2912{
2913 return btusb_mtk_reg_read(data, 0x80000008, id);
2914}
2915
2916static int btusb_mtk_setup(struct hci_dev *hdev)
2917{
2918 struct btusb_data *data = hci_get_drvdata(hdev);
2919 struct btmtk_hci_wmt_params wmt_params;
2920 ktime_t calltime, delta, rettime;
2921 struct btmtk_tci_sleep tci_sleep;
2922 unsigned long long duration;
2923 struct sk_buff *skb;
2924 const char *fwname;
2925 int err, status;
2926 u32 dev_id;
2927 u8 param;
2928
2929 calltime = ktime_get();
2930
2931 err = btusb_mtk_id_get(data, &dev_id);
2932 if (err < 0) {
2933 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2934 return err;
2935 }
2936
2937 switch (dev_id) {
2938 case 0x7663:
2939 fwname = FIRMWARE_MT7663;
2940 break;
2941 case 0x7668:
2942 fwname = FIRMWARE_MT7668;
2943 break;
2944 default:
2945 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2946 dev_id);
2947 return -ENODEV;
2948 }
2949
2950 /* Query whether the firmware is already download */
2951 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2952 wmt_params.flag = 1;
2953 wmt_params.dlen = 0;
2954 wmt_params.data = NULL;
2955 wmt_params.status = &status;
2956
2957 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2958 if (err < 0) {
2959 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2960 return err;
2961 }
2962
2963 if (status == BTMTK_WMT_PATCH_DONE) {
2964 bt_dev_info(hdev, "firmware already downloaded");
2965 goto ignore_setup_fw;
2966 }
2967
2968 /* Setup a firmware which the device definitely requires */
2969 err = btusb_mtk_setup_firmware(hdev, fwname);
2970 if (err < 0)
2971 return err;
2972
2973ignore_setup_fw:
2974 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2975 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2976 2000, 5000000);
2977 /* -ETIMEDOUT happens */
2978 if (err < 0)
2979 return err;
2980
2981 /* The other errors happen in btusb_mtk_func_query */
2982 if (status < 0)
2983 return status;
2984
2985 if (status == BTMTK_WMT_ON_DONE) {
2986 bt_dev_info(hdev, "function already on");
2987 goto ignore_func_on;
2988 }
2989
2990 /* Enable Bluetooth protocol */
2991 param = 1;
2992 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2993 wmt_params.flag = 0;
2994 wmt_params.dlen = sizeof(param);
2995 wmt_params.data = ¶m;
2996 wmt_params.status = NULL;
2997
2998 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2999 if (err < 0) {
3000 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3001 return err;
3002 }
3003
3004ignore_func_on:
3005 /* Apply the low power environment setup */
3006 tci_sleep.mode = 0x5;
3007 tci_sleep.duration = cpu_to_le16(0x640);
3008 tci_sleep.host_duration = cpu_to_le16(0x640);
3009 tci_sleep.host_wakeup_pin = 0;
3010 tci_sleep.time_compensation = 0;
3011
3012 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3013 HCI_INIT_TIMEOUT);
3014 if (IS_ERR(skb)) {
3015 err = PTR_ERR(skb);
3016 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3017 return err;
3018 }
3019 kfree_skb(skb);
3020
3021 rettime = ktime_get();
3022 delta = ktime_sub(rettime, calltime);
3023 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3024
3025 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3026
3027 return 0;
3028}
3029
3030static int btusb_mtk_shutdown(struct hci_dev *hdev)
3031{
3032 struct btmtk_hci_wmt_params wmt_params;
3033 u8 param = 0;
3034 int err;
3035
3036 /* Disable the device */
3037 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3038 wmt_params.flag = 0;
3039 wmt_params.dlen = sizeof(param);
3040 wmt_params.data = ¶m;
3041 wmt_params.status = NULL;
3042
3043 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3044 if (err < 0) {
3045 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3046 return err;
3047 }
3048
3049 return 0;
3050}
3051
3052MODULE_FIRMWARE(FIRMWARE_MT7663);
3053MODULE_FIRMWARE(FIRMWARE_MT7668);
3054#endif
3055
3056#ifdef CONFIG_PM
3057/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3058static int marvell_config_oob_wake(struct hci_dev *hdev)
3059{
3060 struct sk_buff *skb;
3061 struct btusb_data *data = hci_get_drvdata(hdev);
3062 struct device *dev = &data->udev->dev;
3063 u16 pin, gap, opcode;
3064 int ret;
3065 u8 cmd[5];
3066
3067 /* Move on if no wakeup pin specified */
3068 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3069 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3070 return 0;
3071
3072 /* Vendor specific command to configure a GPIO as wake-up pin */
3073 opcode = hci_opcode_pack(0x3F, 0x59);
3074 cmd[0] = opcode & 0xFF;
3075 cmd[1] = opcode >> 8;
3076 cmd[2] = 2; /* length of parameters that follow */
3077 cmd[3] = pin;
3078 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3079
3080 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3081 if (!skb) {
3082 bt_dev_err(hdev, "%s: No memory\n", __func__);
3083 return -ENOMEM;
3084 }
3085
3086 skb_put_data(skb, cmd, sizeof(cmd));
3087 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3088
3089 ret = btusb_send_frame(hdev, skb);
3090 if (ret) {
3091 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3092 kfree_skb(skb);
3093 return ret;
3094 }
3095
3096 return 0;
3097}
3098#endif
3099
3100static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3101 const bdaddr_t *bdaddr)
3102{
3103 struct sk_buff *skb;
3104 u8 buf[8];
3105 long ret;
3106
3107 buf[0] = 0xfe;
3108 buf[1] = sizeof(bdaddr_t);
3109 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3110
3111 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3112 if (IS_ERR(skb)) {
3113 ret = PTR_ERR(skb);
3114 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3115 ret);
3116 return ret;
3117 }
3118 kfree_skb(skb);
3119
3120 return 0;
3121}
3122
3123static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3124 const bdaddr_t *bdaddr)
3125{
3126 struct sk_buff *skb;
3127 u8 buf[10];
3128 long ret;
3129
3130 buf[0] = 0x01;
3131 buf[1] = 0x01;
3132 buf[2] = 0x00;
3133 buf[3] = sizeof(bdaddr_t);
3134 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3135
3136 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3137 if (IS_ERR(skb)) {
3138 ret = PTR_ERR(skb);
3139 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3140 return ret;
3141 }
3142 kfree_skb(skb);
3143
3144 return 0;
3145}
3146
3147#define QCA_DFU_PACKET_LEN 4096
3148
3149#define QCA_GET_TARGET_VERSION 0x09
3150#define QCA_CHECK_STATUS 0x05
3151#define QCA_DFU_DOWNLOAD 0x01
3152
3153#define QCA_SYSCFG_UPDATED 0x40
3154#define QCA_PATCH_UPDATED 0x80
3155#define QCA_DFU_TIMEOUT 3000
3156
3157struct qca_version {
3158 __le32 rom_version;
3159 __le32 patch_version;
3160 __le32 ram_version;
3161 __le32 ref_clock;
3162 __u8 reserved[4];
3163} __packed;
3164
3165struct qca_rampatch_version {
3166 __le16 rom_version;
3167 __le16 patch_version;
3168} __packed;
3169
3170struct qca_device_info {
3171 u32 rom_version;
3172 u8 rampatch_hdr; /* length of header in rampatch */
3173 u8 nvm_hdr; /* length of header in NVM */
3174 u8 ver_offset; /* offset of version structure in rampatch */
3175};
3176
3177static const struct qca_device_info qca_devices_table[] = {
3178 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3179 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
3180 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3181 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3182 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3183 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3184};
3185
3186static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3187 void *data, u16 size)
3188{
3189 int pipe, err;
3190 u8 *buf;
3191
3192 buf = kmalloc(size, GFP_KERNEL);
3193 if (!buf)
3194 return -ENOMEM;
3195
3196 /* Found some of USB hosts have IOT issues with ours so that we should
3197 * not wait until HCI layer is ready.
3198 */
3199 pipe = usb_rcvctrlpipe(udev, 0);
3200 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3201 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3202 if (err < 0) {
3203 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3204 goto done;
3205 }
3206
3207 memcpy(data, buf, size);
3208
3209done:
3210 kfree(buf);
3211
3212 return err;
3213}
3214
3215static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3216 const struct firmware *firmware,
3217 size_t hdr_size)
3218{
3219 struct btusb_data *btdata = hci_get_drvdata(hdev);
3220 struct usb_device *udev = btdata->udev;
3221 size_t count, size, sent = 0;
3222 int pipe, len, err;
3223 u8 *buf;
3224
3225 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3226 if (!buf)
3227 return -ENOMEM;
3228
3229 count = firmware->size;
3230
3231 size = min_t(size_t, count, hdr_size);
3232 memcpy(buf, firmware->data, size);
3233
3234 /* USB patches should go down to controller through USB path
3235 * because binary format fits to go down through USB channel.
3236 * USB control path is for patching headers and USB bulk is for
3237 * patch body.
3238 */
3239 pipe = usb_sndctrlpipe(udev, 0);
3240 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3241 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3242 if (err < 0) {
3243 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3244 goto done;
3245 }
3246
3247 sent += size;
3248 count -= size;
3249
3250 while (count) {
3251 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3252
3253 memcpy(buf, firmware->data + sent, size);
3254
3255 pipe = usb_sndbulkpipe(udev, 0x02);
3256 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3257 QCA_DFU_TIMEOUT);
3258 if (err < 0) {
3259 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3260 sent, firmware->size, err);
3261 break;
3262 }
3263
3264 if (size != len) {
3265 bt_dev_err(hdev, "Failed to get bulk buffer");
3266 err = -EILSEQ;
3267 break;
3268 }
3269
3270 sent += size;
3271 count -= size;
3272 }
3273
3274done:
3275 kfree(buf);
3276 return err;
3277}
3278
3279static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3280 struct qca_version *ver,
3281 const struct qca_device_info *info)
3282{
3283 struct qca_rampatch_version *rver;
3284 const struct firmware *fw;
3285 u32 ver_rom, ver_patch;
3286 u16 rver_rom, rver_patch;
3287 char fwname[64];
3288 int err;
3289
3290 ver_rom = le32_to_cpu(ver->rom_version);
3291 ver_patch = le32_to_cpu(ver->patch_version);
3292
3293 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3294
3295 err = request_firmware(&fw, fwname, &hdev->dev);
3296 if (err) {
3297 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3298 fwname, err);
3299 return err;
3300 }
3301
3302 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3303
3304 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3305 rver_rom = le16_to_cpu(rver->rom_version);
3306 rver_patch = le16_to_cpu(rver->patch_version);
3307
3308 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3309 "firmware rome 0x%x build 0x%x",
3310 rver_rom, rver_patch, ver_rom, ver_patch);
3311
3312 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3313 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3314 err = -EINVAL;
3315 goto done;
3316 }
3317
3318 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3319
3320done:
3321 release_firmware(fw);
3322
3323 return err;
3324}
3325
3326static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3327 struct qca_version *ver,
3328 const struct qca_device_info *info)
3329{
3330 const struct firmware *fw;
3331 char fwname[64];
3332 int err;
3333
3334 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3335 le32_to_cpu(ver->rom_version));
3336
3337 err = request_firmware(&fw, fwname, &hdev->dev);
3338 if (err) {
3339 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3340 fwname, err);
3341 return err;
3342 }
3343
3344 bt_dev_info(hdev, "using NVM file: %s", fwname);
3345
3346 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3347
3348 release_firmware(fw);
3349
3350 return err;
3351}
3352
3353/* identify the ROM version and check whether patches are needed */
3354static bool btusb_qca_need_patch(struct usb_device *udev)
3355{
3356 struct qca_version ver;
3357
3358 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3359 sizeof(ver)) < 0)
3360 return false;
3361 /* only low ROM versions need patches */
3362 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3363}
3364
3365static int btusb_setup_qca(struct hci_dev *hdev)
3366{
3367 struct btusb_data *btdata = hci_get_drvdata(hdev);
3368 struct usb_device *udev = btdata->udev;
3369 const struct qca_device_info *info = NULL;
3370 struct qca_version ver;
3371 u32 ver_rom;
3372 u8 status;
3373 int i, err;
3374
3375 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3376 sizeof(ver));
3377 if (err < 0)
3378 return err;
3379
3380 ver_rom = le32_to_cpu(ver.rom_version);
3381 /* Don't care about high ROM versions */
3382 if (ver_rom & ~0xffffU)
3383 return 0;
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 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3391 return -ENODEV;
3392 }
3393
3394 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3395 sizeof(status));
3396 if (err < 0)
3397 return err;
3398
3399 if (!(status & QCA_PATCH_UPDATED)) {
3400 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3401 if (err < 0)
3402 return err;
3403 }
3404
3405 if (!(status & QCA_SYSCFG_UPDATED)) {
3406 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3407 if (err < 0)
3408 return err;
3409 }
3410
3411 return 0;
3412}
3413
3414#ifdef CONFIG_BT_HCIBTUSB_BCM
3415static inline int __set_diag_interface(struct hci_dev *hdev)
3416{
3417 struct btusb_data *data = hci_get_drvdata(hdev);
3418 struct usb_interface *intf = data->diag;
3419 int i;
3420
3421 if (!data->diag)
3422 return -ENODEV;
3423
3424 data->diag_tx_ep = NULL;
3425 data->diag_rx_ep = NULL;
3426
3427 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3428 struct usb_endpoint_descriptor *ep_desc;
3429
3430 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3431
3432 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3433 data->diag_tx_ep = ep_desc;
3434 continue;
3435 }
3436
3437 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3438 data->diag_rx_ep = ep_desc;
3439 continue;
3440 }
3441 }
3442
3443 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3444 bt_dev_err(hdev, "invalid diagnostic descriptors");
3445 return -ENODEV;
3446 }
3447
3448 return 0;
3449}
3450
3451static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3452{
3453 struct btusb_data *data = hci_get_drvdata(hdev);
3454 struct sk_buff *skb;
3455 struct urb *urb;
3456 unsigned int pipe;
3457
3458 if (!data->diag_tx_ep)
3459 return ERR_PTR(-ENODEV);
3460
3461 urb = usb_alloc_urb(0, GFP_KERNEL);
3462 if (!urb)
3463 return ERR_PTR(-ENOMEM);
3464
3465 skb = bt_skb_alloc(2, GFP_KERNEL);
3466 if (!skb) {
3467 usb_free_urb(urb);
3468 return ERR_PTR(-ENOMEM);
3469 }
3470
3471 skb_put_u8(skb, 0xf0);
3472 skb_put_u8(skb, enable);
3473
3474 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3475
3476 usb_fill_bulk_urb(urb, data->udev, pipe,
3477 skb->data, skb->len, btusb_tx_complete, skb);
3478
3479 skb->dev = (void *)hdev;
3480
3481 return urb;
3482}
3483
3484static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3485{
3486 struct btusb_data *data = hci_get_drvdata(hdev);
3487 struct urb *urb;
3488
3489 if (!data->diag)
3490 return -ENODEV;
3491
3492 if (!test_bit(HCI_RUNNING, &hdev->flags))
3493 return -ENETDOWN;
3494
3495 urb = alloc_diag_urb(hdev, enable);
3496 if (IS_ERR(urb))
3497 return PTR_ERR(urb);
3498
3499 return submit_or_queue_tx_urb(hdev, urb);
3500}
3501#endif
3502
3503#ifdef CONFIG_PM
3504static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3505{
3506 struct btusb_data *data = priv;
3507
3508 pm_wakeup_event(&data->udev->dev, 0);
3509 pm_system_wakeup();
3510
3511 /* Disable only if not already disabled (keep it balanced) */
3512 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3513 disable_irq_nosync(irq);
3514 disable_irq_wake(irq);
3515 }
3516 return IRQ_HANDLED;
3517}
3518
3519static const struct of_device_id btusb_match_table[] = {
3520 { .compatible = "usb1286,204e" },
3521 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3522 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3523 { }
3524};
3525MODULE_DEVICE_TABLE(of, btusb_match_table);
3526
3527/* Use an oob wakeup pin? */
3528static int btusb_config_oob_wake(struct hci_dev *hdev)
3529{
3530 struct btusb_data *data = hci_get_drvdata(hdev);
3531 struct device *dev = &data->udev->dev;
3532 int irq, ret;
3533
3534 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3535
3536 if (!of_match_device(btusb_match_table, dev))
3537 return 0;
3538
3539 /* Move on if no IRQ specified */
3540 irq = of_irq_get_byname(dev->of_node, "wakeup");
3541 if (irq <= 0) {
3542 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3543 return 0;
3544 }
3545
3546 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3547 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3548 0, "OOB Wake-on-BT", data);
3549 if (ret) {
3550 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3551 return ret;
3552 }
3553
3554 ret = device_init_wakeup(dev, true);
3555 if (ret) {
3556 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3557 return ret;
3558 }
3559
3560 data->oob_wake_irq = irq;
3561 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3562 return 0;
3563}
3564#endif
3565
3566static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3567{
3568 if (dmi_check_system(btusb_needs_reset_resume_table))
3569 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3570}
3571
3572static int btusb_probe(struct usb_interface *intf,
3573 const struct usb_device_id *id)
3574{
3575 struct usb_endpoint_descriptor *ep_desc;
3576 struct gpio_desc *reset_gpio;
3577 struct btusb_data *data;
3578 struct hci_dev *hdev;
3579 unsigned ifnum_base;
3580 int i, err;
3581
3582 BT_DBG("intf %p id %p", intf, id);
3583
3584 /* interface numbers are hardcoded in the spec */
3585 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3586 if (!(id->driver_info & BTUSB_IFNUM_2))
3587 return -ENODEV;
3588 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3589 return -ENODEV;
3590 }
3591
3592 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3593
3594 if (!id->driver_info) {
3595 const struct usb_device_id *match;
3596
3597 match = usb_match_id(intf, blacklist_table);
3598 if (match)
3599 id = match;
3600 }
3601
3602 if (id->driver_info == BTUSB_IGNORE)
3603 return -ENODEV;
3604
3605 if (id->driver_info & BTUSB_ATH3012) {
3606 struct usb_device *udev = interface_to_usbdev(intf);
3607
3608 /* Old firmware would otherwise let ath3k driver load
3609 * patch and sysconfig files
3610 */
3611 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3612 !btusb_qca_need_patch(udev))
3613 return -ENODEV;
3614 }
3615
3616 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3617 if (!data)
3618 return -ENOMEM;
3619
3620 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3621 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3622
3623 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3624 data->intr_ep = ep_desc;
3625 continue;
3626 }
3627
3628 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3629 data->bulk_tx_ep = ep_desc;
3630 continue;
3631 }
3632
3633 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3634 data->bulk_rx_ep = ep_desc;
3635 continue;
3636 }
3637 }
3638
3639 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3640 return -ENODEV;
3641
3642 if (id->driver_info & BTUSB_AMP) {
3643 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3644 data->cmdreq = 0x2b;
3645 } else {
3646 data->cmdreq_type = USB_TYPE_CLASS;
3647 data->cmdreq = 0x00;
3648 }
3649
3650 data->udev = interface_to_usbdev(intf);
3651 data->intf = intf;
3652
3653 INIT_WORK(&data->work, btusb_work);
3654 INIT_WORK(&data->waker, btusb_waker);
3655 init_usb_anchor(&data->deferred);
3656 init_usb_anchor(&data->tx_anchor);
3657 spin_lock_init(&data->txlock);
3658
3659 init_usb_anchor(&data->intr_anchor);
3660 init_usb_anchor(&data->bulk_anchor);
3661 init_usb_anchor(&data->isoc_anchor);
3662 init_usb_anchor(&data->diag_anchor);
3663 init_usb_anchor(&data->ctrl_anchor);
3664 spin_lock_init(&data->rxlock);
3665
3666 if (id->driver_info & BTUSB_INTEL_NEW) {
3667 data->recv_event = btusb_recv_event_intel;
3668 data->recv_bulk = btusb_recv_bulk_intel;
3669 set_bit(BTUSB_BOOTLOADER, &data->flags);
3670 } else {
3671 data->recv_event = hci_recv_frame;
3672 data->recv_bulk = btusb_recv_bulk;
3673 }
3674
3675 hdev = hci_alloc_dev();
3676 if (!hdev)
3677 return -ENOMEM;
3678
3679 hdev->bus = HCI_USB;
3680 hci_set_drvdata(hdev, data);
3681
3682 if (id->driver_info & BTUSB_AMP)
3683 hdev->dev_type = HCI_AMP;
3684 else
3685 hdev->dev_type = HCI_PRIMARY;
3686
3687 data->hdev = hdev;
3688
3689 SET_HCIDEV_DEV(hdev, &intf->dev);
3690
3691 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3692 GPIOD_OUT_LOW);
3693 if (IS_ERR(reset_gpio)) {
3694 err = PTR_ERR(reset_gpio);
3695 goto out_free_dev;
3696 } else if (reset_gpio) {
3697 data->reset_gpio = reset_gpio;
3698 }
3699
3700 hdev->open = btusb_open;
3701 hdev->close = btusb_close;
3702 hdev->flush = btusb_flush;
3703 hdev->send = btusb_send_frame;
3704 hdev->notify = btusb_notify;
3705
3706#ifdef CONFIG_PM
3707 err = btusb_config_oob_wake(hdev);
3708 if (err)
3709 goto out_free_dev;
3710
3711 /* Marvell devices may need a specific chip configuration */
3712 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3713 err = marvell_config_oob_wake(hdev);
3714 if (err)
3715 goto out_free_dev;
3716 }
3717#endif
3718 if (id->driver_info & BTUSB_CW6622)
3719 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3720
3721 if (id->driver_info & BTUSB_BCM2045)
3722 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3723
3724 if (id->driver_info & BTUSB_BCM92035)
3725 hdev->setup = btusb_setup_bcm92035;
3726
3727#ifdef CONFIG_BT_HCIBTUSB_BCM
3728 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3729 hdev->manufacturer = 15;
3730 hdev->setup = btbcm_setup_patchram;
3731 hdev->set_diag = btusb_bcm_set_diag;
3732 hdev->set_bdaddr = btbcm_set_bdaddr;
3733
3734 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3735 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3736 }
3737
3738 if (id->driver_info & BTUSB_BCM_APPLE) {
3739 hdev->manufacturer = 15;
3740 hdev->setup = btbcm_setup_apple;
3741 hdev->set_diag = btusb_bcm_set_diag;
3742
3743 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3744 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3745 }
3746#endif
3747
3748 if (id->driver_info & BTUSB_INTEL) {
3749 hdev->manufacturer = 2;
3750 hdev->setup = btusb_setup_intel;
3751 hdev->shutdown = btusb_shutdown_intel;
3752 hdev->set_diag = btintel_set_diag_mfg;
3753 hdev->set_bdaddr = btintel_set_bdaddr;
3754 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3755 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3756 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3757 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3758 }
3759
3760 if (id->driver_info & BTUSB_INTEL_NEW) {
3761 hdev->manufacturer = 2;
3762 hdev->send = btusb_send_frame_intel;
3763 hdev->setup = btusb_setup_intel_new;
3764 hdev->shutdown = btusb_shutdown_intel_new;
3765 hdev->hw_error = btintel_hw_error;
3766 hdev->set_diag = btintel_set_diag;
3767 hdev->set_bdaddr = btintel_set_bdaddr;
3768 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3769 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3770 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3771 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3772 }
3773
3774 if (id->driver_info & BTUSB_MARVELL)
3775 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3776
3777#ifdef CONFIG_BT_HCIBTUSB_MTK
3778 if (id->driver_info & BTUSB_MEDIATEK) {
3779 hdev->setup = btusb_mtk_setup;
3780 hdev->shutdown = btusb_mtk_shutdown;
3781 hdev->manufacturer = 70;
3782 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3783 }
3784#endif
3785
3786 if (id->driver_info & BTUSB_SWAVE) {
3787 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3788 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3789 }
3790
3791 if (id->driver_info & BTUSB_INTEL_BOOT) {
3792 hdev->manufacturer = 2;
3793 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3794 }
3795
3796 if (id->driver_info & BTUSB_ATH3012) {
3797 data->setup_on_usb = btusb_setup_qca;
3798 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3799 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3800 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3801 }
3802
3803 if (id->driver_info & BTUSB_QCA_ROME) {
3804 data->setup_on_usb = btusb_setup_qca;
3805 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3806 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3807 btusb_check_needs_reset_resume(intf);
3808 }
3809
3810#ifdef CONFIG_BT_HCIBTUSB_RTL
3811 if (id->driver_info & BTUSB_REALTEK) {
3812 hdev->setup = btrtl_setup_realtek;
3813 hdev->shutdown = btrtl_shutdown_realtek;
3814 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3815
3816 /* Realtek devices lose their updated firmware over global
3817 * suspend that means host doesn't send SET_FEATURE
3818 * (DEVICE_REMOTE_WAKEUP)
3819 */
3820 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
3821 }
3822#endif
3823
3824 if (id->driver_info & BTUSB_AMP) {
3825 /* AMP controllers do not support SCO packets */
3826 data->isoc = NULL;
3827 } else {
3828 /* Interface orders are hardcoded in the specification */
3829 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3830 data->isoc_ifnum = ifnum_base + 1;
3831 }
3832
3833 if (!reset)
3834 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3835
3836 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3837 if (!disable_scofix)
3838 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3839 }
3840
3841 if (id->driver_info & BTUSB_BROKEN_ISOC)
3842 data->isoc = NULL;
3843
3844 if (id->driver_info & BTUSB_DIGIANSWER) {
3845 data->cmdreq_type = USB_TYPE_VENDOR;
3846 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3847 }
3848
3849 if (id->driver_info & BTUSB_CSR) {
3850 struct usb_device *udev = data->udev;
3851 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3852
3853 /* Old firmware would otherwise execute USB reset */
3854 if (bcdDevice < 0x117)
3855 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3856
3857 /* Fake CSR devices with broken commands */
3858 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3859 hdev->setup = btusb_setup_csr;
3860
3861 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3862 }
3863
3864 if (id->driver_info & BTUSB_SNIFFER) {
3865 struct usb_device *udev = data->udev;
3866
3867 /* New sniffer firmware has crippled HCI interface */
3868 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3869 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3870 }
3871
3872 if (id->driver_info & BTUSB_INTEL_BOOT) {
3873 /* A bug in the bootloader causes that interrupt interface is
3874 * only enabled after receiving SetInterface(0, AltSetting=0).
3875 */
3876 err = usb_set_interface(data->udev, 0, 0);
3877 if (err < 0) {
3878 BT_ERR("failed to set interface 0, alt 0 %d", err);
3879 goto out_free_dev;
3880 }
3881 }
3882
3883 if (data->isoc) {
3884 err = usb_driver_claim_interface(&btusb_driver,
3885 data->isoc, data);
3886 if (err < 0)
3887 goto out_free_dev;
3888 }
3889
3890#ifdef CONFIG_BT_HCIBTUSB_BCM
3891 if (data->diag) {
3892 if (!usb_driver_claim_interface(&btusb_driver,
3893 data->diag, data))
3894 __set_diag_interface(hdev);
3895 else
3896 data->diag = NULL;
3897 }
3898#endif
3899
3900 if (enable_autosuspend)
3901 usb_enable_autosuspend(data->udev);
3902
3903 err = hci_register_dev(hdev);
3904 if (err < 0)
3905 goto out_free_dev;
3906
3907 usb_set_intfdata(intf, data);
3908
3909 return 0;
3910
3911out_free_dev:
3912 if (data->reset_gpio)
3913 gpiod_put(data->reset_gpio);
3914 hci_free_dev(hdev);
3915 return err;
3916}
3917
3918static void btusb_disconnect(struct usb_interface *intf)
3919{
3920 struct btusb_data *data = usb_get_intfdata(intf);
3921 struct hci_dev *hdev;
3922
3923 BT_DBG("intf %p", intf);
3924
3925 if (!data)
3926 return;
3927
3928 hdev = data->hdev;
3929 usb_set_intfdata(data->intf, NULL);
3930
3931 if (data->isoc)
3932 usb_set_intfdata(data->isoc, NULL);
3933
3934 if (data->diag)
3935 usb_set_intfdata(data->diag, NULL);
3936
3937 hci_unregister_dev(hdev);
3938
3939 if (intf == data->intf) {
3940 if (data->isoc)
3941 usb_driver_release_interface(&btusb_driver, data->isoc);
3942 if (data->diag)
3943 usb_driver_release_interface(&btusb_driver, data->diag);
3944 } else if (intf == data->isoc) {
3945 if (data->diag)
3946 usb_driver_release_interface(&btusb_driver, data->diag);
3947 usb_driver_release_interface(&btusb_driver, data->intf);
3948 } else if (intf == data->diag) {
3949 usb_driver_release_interface(&btusb_driver, data->intf);
3950 if (data->isoc)
3951 usb_driver_release_interface(&btusb_driver, data->isoc);
3952 }
3953
3954 if (data->oob_wake_irq)
3955 device_init_wakeup(&data->udev->dev, false);
3956
3957 if (data->reset_gpio)
3958 gpiod_put(data->reset_gpio);
3959
3960 hci_free_dev(hdev);
3961}
3962
3963#ifdef CONFIG_PM
3964static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3965{
3966 struct btusb_data *data = usb_get_intfdata(intf);
3967
3968 BT_DBG("intf %p", intf);
3969
3970 if (data->suspend_count++)
3971 return 0;
3972
3973 spin_lock_irq(&data->txlock);
3974 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3975 set_bit(BTUSB_SUSPENDING, &data->flags);
3976 spin_unlock_irq(&data->txlock);
3977 } else {
3978 spin_unlock_irq(&data->txlock);
3979 data->suspend_count--;
3980 return -EBUSY;
3981 }
3982
3983 cancel_work_sync(&data->work);
3984
3985 btusb_stop_traffic(data);
3986 usb_kill_anchored_urbs(&data->tx_anchor);
3987
3988 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3989 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3990 enable_irq_wake(data->oob_wake_irq);
3991 enable_irq(data->oob_wake_irq);
3992 }
3993
3994 /* For global suspend, Realtek devices lose the loaded fw
3995 * in them. But for autosuspend, firmware should remain.
3996 * Actually, it depends on whether the usb host sends
3997 * set feature (enable wakeup) or not.
3998 */
3999 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4000 if (PMSG_IS_AUTO(message) &&
4001 device_can_wakeup(&data->udev->dev))
4002 data->udev->do_remote_wakeup = 1;
4003 else if (!PMSG_IS_AUTO(message))
4004 data->udev->reset_resume = 1;
4005 }
4006
4007 return 0;
4008}
4009
4010static void play_deferred(struct btusb_data *data)
4011{
4012 struct urb *urb;
4013 int err;
4014
4015 while ((urb = usb_get_from_anchor(&data->deferred))) {
4016 usb_anchor_urb(urb, &data->tx_anchor);
4017
4018 err = usb_submit_urb(urb, GFP_ATOMIC);
4019 if (err < 0) {
4020 if (err != -EPERM && err != -ENODEV)
4021 BT_ERR("%s urb %p submission failed (%d)",
4022 data->hdev->name, urb, -err);
4023 kfree(urb->setup_packet);
4024 usb_unanchor_urb(urb);
4025 usb_free_urb(urb);
4026 break;
4027 }
4028
4029 data->tx_in_flight++;
4030 usb_free_urb(urb);
4031 }
4032
4033 /* Cleanup the rest deferred urbs. */
4034 while ((urb = usb_get_from_anchor(&data->deferred))) {
4035 kfree(urb->setup_packet);
4036 usb_free_urb(urb);
4037 }
4038}
4039
4040static int btusb_resume(struct usb_interface *intf)
4041{
4042 struct btusb_data *data = usb_get_intfdata(intf);
4043 struct hci_dev *hdev = data->hdev;
4044 int err = 0;
4045
4046 BT_DBG("intf %p", intf);
4047
4048 if (--data->suspend_count)
4049 return 0;
4050
4051 /* Disable only if not already disabled (keep it balanced) */
4052 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4053 disable_irq(data->oob_wake_irq);
4054 disable_irq_wake(data->oob_wake_irq);
4055 }
4056
4057 if (!test_bit(HCI_RUNNING, &hdev->flags))
4058 goto done;
4059
4060 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4061 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4062 if (err < 0) {
4063 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4064 goto failed;
4065 }
4066 }
4067
4068 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4069 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4070 if (err < 0) {
4071 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4072 goto failed;
4073 }
4074
4075 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4076 }
4077
4078 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4079 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4080 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4081 else
4082 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4083 }
4084
4085 spin_lock_irq(&data->txlock);
4086 play_deferred(data);
4087 clear_bit(BTUSB_SUSPENDING, &data->flags);
4088 spin_unlock_irq(&data->txlock);
4089 schedule_work(&data->work);
4090
4091 return 0;
4092
4093failed:
4094 usb_scuttle_anchored_urbs(&data->deferred);
4095done:
4096 spin_lock_irq(&data->txlock);
4097 clear_bit(BTUSB_SUSPENDING, &data->flags);
4098 spin_unlock_irq(&data->txlock);
4099
4100 return err;
4101}
4102#endif
4103
4104static struct usb_driver btusb_driver = {
4105 .name = "btusb",
4106 .probe = btusb_probe,
4107 .disconnect = btusb_disconnect,
4108#ifdef CONFIG_PM
4109 .suspend = btusb_suspend,
4110 .resume = btusb_resume,
4111#endif
4112 .id_table = btusb_table,
4113 .supports_autosuspend = 1,
4114 .disable_hub_initiated_lpm = 1,
4115};
4116
4117module_usb_driver(btusb_driver);
4118
4119module_param(disable_scofix, bool, 0644);
4120MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4121
4122module_param(force_scofix, bool, 0644);
4123MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4124
4125module_param(enable_autosuspend, bool, 0644);
4126MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4127
4128module_param(reset, bool, 0644);
4129MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4130
4131MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4132MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4133MODULE_VERSION(VERSION);
4134MODULE_LICENSE("GPL");