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Bluetooth: btusb: Add Realtek RTL8852BE support ID 0x0bda:0x4853
[thirdparty/kernel/linux.git] / drivers / bluetooth / btusb.c
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
32 static bool disable_scofix;
33 static bool force_scofix;
34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36 static bool reset = true;
37
38 static 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
69 static 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
176 MODULE_DEVICE_TABLE(usb, btusb_table);
177
178 static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH |
302 BTUSB_VALID_LE_STATES },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH |
305 BTUSB_VALID_LE_STATES },
306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH |
308 BTUSB_VALID_LE_STATES },
309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH |
311 BTUSB_VALID_LE_STATES },
312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH |
314 BTUSB_VALID_LE_STATES },
315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH |
317 BTUSB_VALID_LE_STATES },
318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH |
320 BTUSB_VALID_LE_STATES },
321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH |
323 BTUSB_VALID_LE_STATES },
324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH |
326 BTUSB_VALID_LE_STATES },
327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH |
329 BTUSB_VALID_LE_STATES },
330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH |
332 BTUSB_VALID_LE_STATES },
333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH |
335 BTUSB_VALID_LE_STATES },
336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH |
338 BTUSB_VALID_LE_STATES },
339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH |
341 BTUSB_VALID_LE_STATES },
342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH |
344 BTUSB_VALID_LE_STATES },
345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH |
347 BTUSB_VALID_LE_STATES },
348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH |
350 BTUSB_VALID_LE_STATES },
351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH |
353 BTUSB_VALID_LE_STATES },
354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH |
359 BTUSB_VALID_LE_STATES },
360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH |
362 BTUSB_VALID_LE_STATES },
363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH |
365 BTUSB_VALID_LE_STATES },
366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH |
368 BTUSB_VALID_LE_STATES },
369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH |
371 BTUSB_VALID_LE_STATES },
372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH |
374 BTUSB_VALID_LE_STATES },
375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH |
377 BTUSB_VALID_LE_STATES },
378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH |
383 BTUSB_VALID_LE_STATES },
384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH |
386 BTUSB_VALID_LE_STATES },
387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
388 BTUSB_WIDEBAND_SPEECH |
389 BTUSB_VALID_LE_STATES },
390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH |
392 BTUSB_VALID_LE_STATES },
393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH |
395 BTUSB_VALID_LE_STATES },
396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH |
398 BTUSB_VALID_LE_STATES },
399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH |
401 BTUSB_VALID_LE_STATES },
402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
405
406 /* QCA WCN785x chipset */
407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
410
411 /* Broadcom BCM2035 */
412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* Broadcom BCM2045 */
417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* IBM/Lenovo ThinkPad with Broadcom chip */
421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* HP laptop with Broadcom chip */
425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
426
427 /* Dell laptop with Broadcom chip */
428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
429
430 /* Dell Wireless 370 and 410 devices */
431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Belkin F8T012 and F8T013 devices */
435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Asus WL-BTD202 device */
439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
440
441 /* Kensington Bluetooth USB adapter */
442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
443
444 /* RTX Telecom based adapters with buggy SCO support */
445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
447
448 /* CONWISE Technology based adapters with buggy SCO support */
449 { USB_DEVICE(0x0e5e, 0x6622),
450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
451
452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
454
455 /* Digianswer devices */
456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
458
459 /* CSR BlueCore Bluetooth Sniffer */
460 { USB_DEVICE(0x0a12, 0x0002),
461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
462
463 /* Frontline ComProbe Bluetooth Sniffer */
464 { USB_DEVICE(0x16d3, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Marvell Bluetooth devices */
468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
471
472 /* Intel Bluetooth devices */
473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
481 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
482 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
483 BTUSB_INTEL_NO_WBS_SUPPORT |
484 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
486 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
487 BTUSB_INTEL_NO_WBS_SUPPORT |
488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
489 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
490 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
493
494 /* Other Intel Bluetooth devices */
495 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
496 .driver_info = BTUSB_IGNORE },
497
498 /* Realtek 8821CE Bluetooth devices */
499 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8822CE Bluetooth devices */
503 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507
508 /* Realtek 8822CU Bluetooth devices */
509 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511
512 /* Realtek 8852AE Bluetooth devices */
513 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527
528 /* Realtek 8852CE Bluetooth devices */
529 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
540 BTUSB_WIDEBAND_SPEECH },
541
542 /* Realtek 8852BE Bluetooth devices */
543 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
544 BTUSB_WIDEBAND_SPEECH },
545 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
554 BTUSB_WIDEBAND_SPEECH },
555 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
556 BTUSB_WIDEBAND_SPEECH },
557
558 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
559 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
560 BTUSB_WIDEBAND_SPEECH },
561 /* Realtek Bluetooth devices */
562 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
563 .driver_info = BTUSB_REALTEK },
564
565 /* MediaTek Bluetooth devices */
566 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
567 .driver_info = BTUSB_MEDIATEK |
568 BTUSB_WIDEBAND_SPEECH |
569 BTUSB_VALID_LE_STATES },
570
571 /* Additional MediaTek MT7615E Bluetooth devices */
572 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
573
574 /* Additional MediaTek MT7663 Bluetooth devices */
575 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
576 BTUSB_WIDEBAND_SPEECH |
577 BTUSB_VALID_LE_STATES },
578 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
579 BTUSB_WIDEBAND_SPEECH |
580 BTUSB_VALID_LE_STATES },
581
582 /* Additional MediaTek MT7668 Bluetooth devices */
583 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH |
585 BTUSB_VALID_LE_STATES },
586
587 /* Additional MediaTek MT7921 Bluetooth devices */
588 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
589 BTUSB_WIDEBAND_SPEECH |
590 BTUSB_VALID_LE_STATES },
591 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
592 BTUSB_WIDEBAND_SPEECH |
593 BTUSB_VALID_LE_STATES },
594 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
595 BTUSB_WIDEBAND_SPEECH |
596 BTUSB_VALID_LE_STATES },
597 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
598 BTUSB_WIDEBAND_SPEECH |
599 BTUSB_VALID_LE_STATES },
600 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
601 BTUSB_WIDEBAND_SPEECH |
602 BTUSB_VALID_LE_STATES },
603 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
604 BTUSB_WIDEBAND_SPEECH |
605 BTUSB_VALID_LE_STATES },
606 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
607 BTUSB_WIDEBAND_SPEECH |
608 BTUSB_VALID_LE_STATES },
609 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
610 BTUSB_WIDEBAND_SPEECH |
611 BTUSB_VALID_LE_STATES },
612 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
613 BTUSB_WIDEBAND_SPEECH |
614 BTUSB_VALID_LE_STATES },
615 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH |
617 BTUSB_VALID_LE_STATES },
618 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
619 BTUSB_WIDEBAND_SPEECH |
620 BTUSB_VALID_LE_STATES },
621
622 /* MediaTek MT7922A Bluetooth devices */
623 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
624 BTUSB_WIDEBAND_SPEECH |
625 BTUSB_VALID_LE_STATES },
626 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
627 BTUSB_WIDEBAND_SPEECH |
628 BTUSB_VALID_LE_STATES },
629 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
630 BTUSB_WIDEBAND_SPEECH |
631 BTUSB_VALID_LE_STATES },
632 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
633 BTUSB_WIDEBAND_SPEECH |
634 BTUSB_VALID_LE_STATES },
635 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
636 BTUSB_WIDEBAND_SPEECH |
637 BTUSB_VALID_LE_STATES },
638 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
639 BTUSB_WIDEBAND_SPEECH |
640 BTUSB_VALID_LE_STATES },
641 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
642 BTUSB_WIDEBAND_SPEECH |
643 BTUSB_VALID_LE_STATES },
644 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
645 BTUSB_WIDEBAND_SPEECH |
646 BTUSB_VALID_LE_STATES },
647 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
648 BTUSB_WIDEBAND_SPEECH |
649 BTUSB_VALID_LE_STATES },
650 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
651 BTUSB_WIDEBAND_SPEECH |
652 BTUSB_VALID_LE_STATES },
653 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
654 BTUSB_WIDEBAND_SPEECH |
655 BTUSB_VALID_LE_STATES },
656 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
657 BTUSB_WIDEBAND_SPEECH |
658 BTUSB_VALID_LE_STATES },
659 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
660 BTUSB_WIDEBAND_SPEECH |
661 BTUSB_VALID_LE_STATES },
662
663 /* Additional MediaTek MT7925 Bluetooth devices */
664 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
665 BTUSB_WIDEBAND_SPEECH |
666 BTUSB_VALID_LE_STATES },
667
668 /* Additional Realtek 8723AE Bluetooth devices */
669 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
670 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
671
672 /* Additional Realtek 8723BE Bluetooth devices */
673 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
674 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
675 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
676 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
677 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
678 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
679 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
680
681 /* Additional Realtek 8723BU Bluetooth devices */
682 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
683
684 /* Additional Realtek 8723DE Bluetooth devices */
685 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
686 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
687
688 /* Additional Realtek 8761BUV Bluetooth devices */
689 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
690 BTUSB_WIDEBAND_SPEECH },
691 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
692 BTUSB_WIDEBAND_SPEECH },
693 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
694 BTUSB_WIDEBAND_SPEECH },
695 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
696 BTUSB_WIDEBAND_SPEECH },
697 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
698 BTUSB_WIDEBAND_SPEECH },
699 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
700 BTUSB_WIDEBAND_SPEECH },
701 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
702 BTUSB_WIDEBAND_SPEECH },
703
704 /* Additional Realtek 8821AE Bluetooth devices */
705 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
706 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
707 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
708 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
709 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
710
711 /* Additional Realtek 8822BE Bluetooth devices */
712 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
713 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
714
715 /* Additional Realtek 8822CE Bluetooth devices */
716 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
725 BTUSB_WIDEBAND_SPEECH },
726 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
727 BTUSB_WIDEBAND_SPEECH },
728 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
737 BTUSB_WIDEBAND_SPEECH },
738
739 /* Actions Semiconductor ATS2851 based devices */
740 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
741
742 /* Silicon Wave based devices */
743 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
744
745 { } /* Terminating entry */
746 };
747
748 /* The Bluetooth USB module build into some devices needs to be reset on resume,
749 * this is a problem with the platform (likely shutting off all power) not with
750 * the module itself. So we use a DMI list to match known broken platforms.
751 */
752 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
753 {
754 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
755 .matches = {
756 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
757 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
758 },
759 },
760 {
761 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
762 .matches = {
763 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
764 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
765 },
766 },
767 {
768 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
769 .matches = {
770 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
771 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
772 },
773 },
774 {}
775 };
776
777 struct qca_dump_info {
778 /* fields for dump collection */
779 u16 id_vendor;
780 u16 id_product;
781 u32 fw_version;
782 u32 controller_id;
783 u32 ram_dump_size;
784 u16 ram_dump_seqno;
785 };
786
787 #define BTUSB_MAX_ISOC_FRAMES 10
788
789 #define BTUSB_INTR_RUNNING 0
790 #define BTUSB_BULK_RUNNING 1
791 #define BTUSB_ISOC_RUNNING 2
792 #define BTUSB_SUSPENDING 3
793 #define BTUSB_DID_ISO_RESUME 4
794 #define BTUSB_BOOTLOADER 5
795 #define BTUSB_DOWNLOADING 6
796 #define BTUSB_FIRMWARE_LOADED 7
797 #define BTUSB_FIRMWARE_FAILED 8
798 #define BTUSB_BOOTING 9
799 #define BTUSB_DIAG_RUNNING 10
800 #define BTUSB_OOB_WAKE_ENABLED 11
801 #define BTUSB_HW_RESET_ACTIVE 12
802 #define BTUSB_TX_WAIT_VND_EVT 13
803 #define BTUSB_WAKEUP_AUTOSUSPEND 14
804 #define BTUSB_USE_ALT3_FOR_WBS 15
805 #define BTUSB_ALT6_CONTINUOUS_TX 16
806 #define BTUSB_HW_SSR_ACTIVE 17
807
808 struct btusb_data {
809 struct hci_dev *hdev;
810 struct usb_device *udev;
811 struct usb_interface *intf;
812 struct usb_interface *isoc;
813 struct usb_interface *diag;
814 unsigned isoc_ifnum;
815
816 unsigned long flags;
817
818 bool poll_sync;
819 int intr_interval;
820 struct work_struct work;
821 struct work_struct waker;
822 struct delayed_work rx_work;
823
824 struct sk_buff_head acl_q;
825
826 struct usb_anchor deferred;
827 struct usb_anchor tx_anchor;
828 int tx_in_flight;
829 spinlock_t txlock;
830
831 struct usb_anchor intr_anchor;
832 struct usb_anchor bulk_anchor;
833 struct usb_anchor isoc_anchor;
834 struct usb_anchor diag_anchor;
835 struct usb_anchor ctrl_anchor;
836 spinlock_t rxlock;
837
838 struct sk_buff *evt_skb;
839 struct sk_buff *acl_skb;
840 struct sk_buff *sco_skb;
841
842 struct usb_endpoint_descriptor *intr_ep;
843 struct usb_endpoint_descriptor *bulk_tx_ep;
844 struct usb_endpoint_descriptor *bulk_rx_ep;
845 struct usb_endpoint_descriptor *isoc_tx_ep;
846 struct usb_endpoint_descriptor *isoc_rx_ep;
847 struct usb_endpoint_descriptor *diag_tx_ep;
848 struct usb_endpoint_descriptor *diag_rx_ep;
849
850 struct gpio_desc *reset_gpio;
851
852 __u8 cmdreq_type;
853 __u8 cmdreq;
854
855 unsigned int sco_num;
856 unsigned int air_mode;
857 bool usb_alt6_packet_flow;
858 int isoc_altsetting;
859 int suspend_count;
860
861 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
862 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
863 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
864
865 int (*setup_on_usb)(struct hci_dev *hdev);
866
867 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
868 unsigned cmd_timeout_cnt;
869
870 struct qca_dump_info qca_dump;
871 };
872
873 static void btusb_reset(struct hci_dev *hdev)
874 {
875 struct btusb_data *data;
876 int err;
877
878 if (hdev->reset) {
879 hdev->reset(hdev);
880 return;
881 }
882
883 data = hci_get_drvdata(hdev);
884 /* This is not an unbalanced PM reference since the device will reset */
885 err = usb_autopm_get_interface(data->intf);
886 if (err) {
887 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
888 return;
889 }
890
891 bt_dev_err(hdev, "Resetting usb device.");
892 usb_queue_reset_device(data->intf);
893 }
894
895 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
896 {
897 struct btusb_data *data = hci_get_drvdata(hdev);
898 struct gpio_desc *reset_gpio = data->reset_gpio;
899 struct btintel_data *intel_data = hci_get_priv(hdev);
900
901 if (++data->cmd_timeout_cnt < 5)
902 return;
903
904 if (intel_data->acpi_reset_method) {
905 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
906 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
907 return;
908 }
909
910 bt_dev_err(hdev, "Initiating acpi reset method");
911 /* If ACPI reset method fails, lets try with legacy GPIO
912 * toggling
913 */
914 if (!intel_data->acpi_reset_method(hdev)) {
915 return;
916 }
917 }
918
919 if (!reset_gpio) {
920 btusb_reset(hdev);
921 return;
922 }
923
924 /*
925 * Toggle the hard reset line if the platform provides one. The reset
926 * is going to yank the device off the USB and then replug. So doing
927 * once is enough. The cleanup is handled correctly on the way out
928 * (standard USB disconnect), and the new device is detected cleanly
929 * and bound to the driver again like it should be.
930 */
931 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
932 bt_dev_err(hdev, "last reset failed? Not resetting again");
933 return;
934 }
935
936 bt_dev_err(hdev, "Initiating HW reset via gpio");
937 gpiod_set_value_cansleep(reset_gpio, 1);
938 msleep(100);
939 gpiod_set_value_cansleep(reset_gpio, 0);
940 }
941
942 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
943 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
944 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
945
946 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
947
948 struct rtk_dev_coredump_hdr {
949 u8 type;
950 u8 code;
951 u8 reserved[2];
952 } __packed;
953
954 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
955 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
956 {
957 struct sk_buff *skb;
958
959 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
960 if (!skb)
961 return;
962
963 skb_put_data(skb, hdr, sizeof(*hdr));
964 if (len)
965 skb_put_data(skb, buf, len);
966
967 if (!hci_devcd_init(hdev, skb->len)) {
968 hci_devcd_append(hdev, skb);
969 hci_devcd_complete(hdev);
970 } else {
971 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
972 kfree_skb(skb);
973 }
974 }
975
976 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
977 {
978 struct btusb_data *data = hci_get_drvdata(hdev);
979 struct gpio_desc *reset_gpio = data->reset_gpio;
980 struct rtk_dev_coredump_hdr hdr = {
981 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
982 };
983
984 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
985
986 if (++data->cmd_timeout_cnt < 5)
987 return;
988
989 if (!reset_gpio) {
990 btusb_reset(hdev);
991 return;
992 }
993
994 /* Toggle the hard reset line. The Realtek device is going to
995 * yank itself off the USB and then replug. The cleanup is handled
996 * correctly on the way out (standard USB disconnect), and the new
997 * device is detected cleanly and bound to the driver again like
998 * it should be.
999 */
1000 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1001 bt_dev_err(hdev, "last reset failed? Not resetting again");
1002 return;
1003 }
1004
1005 bt_dev_err(hdev, "Reset Realtek device via gpio");
1006 gpiod_set_value_cansleep(reset_gpio, 1);
1007 msleep(200);
1008 gpiod_set_value_cansleep(reset_gpio, 0);
1009 }
1010
1011 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1012 {
1013 struct rtk_dev_coredump_hdr hdr = {
1014 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1015 .code = code,
1016 };
1017
1018 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1019
1020 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1021 }
1022
1023 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1024 {
1025 struct btusb_data *data = hci_get_drvdata(hdev);
1026 struct gpio_desc *reset_gpio = data->reset_gpio;
1027
1028 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1029 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1030 return;
1031 }
1032
1033 if (++data->cmd_timeout_cnt < 5)
1034 return;
1035
1036 if (reset_gpio) {
1037 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1038
1039 /* Toggle the hard reset line. The qca bt device is going to
1040 * yank itself off the USB and then replug. The cleanup is handled
1041 * correctly on the way out (standard USB disconnect), and the new
1042 * device is detected cleanly and bound to the driver again like
1043 * it should be.
1044 */
1045 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1046 bt_dev_err(hdev, "last reset failed? Not resetting again");
1047 return;
1048 }
1049
1050 gpiod_set_value_cansleep(reset_gpio, 0);
1051 msleep(200);
1052 gpiod_set_value_cansleep(reset_gpio, 1);
1053
1054 return;
1055 }
1056
1057 btusb_reset(hdev);
1058 }
1059
1060 static inline void btusb_free_frags(struct btusb_data *data)
1061 {
1062 unsigned long flags;
1063
1064 spin_lock_irqsave(&data->rxlock, flags);
1065
1066 dev_kfree_skb_irq(data->evt_skb);
1067 data->evt_skb = NULL;
1068
1069 dev_kfree_skb_irq(data->acl_skb);
1070 data->acl_skb = NULL;
1071
1072 dev_kfree_skb_irq(data->sco_skb);
1073 data->sco_skb = NULL;
1074
1075 spin_unlock_irqrestore(&data->rxlock, flags);
1076 }
1077
1078 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1079 {
1080 if (data->intr_interval) {
1081 /* Trigger dequeue immediatelly if an event is received */
1082 schedule_delayed_work(&data->rx_work, 0);
1083 }
1084
1085 return data->recv_event(data->hdev, skb);
1086 }
1087
1088 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1089 {
1090 struct sk_buff *skb;
1091 unsigned long flags;
1092 int err = 0;
1093
1094 spin_lock_irqsave(&data->rxlock, flags);
1095 skb = data->evt_skb;
1096
1097 while (count) {
1098 int len;
1099
1100 if (!skb) {
1101 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1102 if (!skb) {
1103 err = -ENOMEM;
1104 break;
1105 }
1106
1107 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1108 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1109 }
1110
1111 len = min_t(uint, hci_skb_expect(skb), count);
1112 skb_put_data(skb, buffer, len);
1113
1114 count -= len;
1115 buffer += len;
1116 hci_skb_expect(skb) -= len;
1117
1118 if (skb->len == HCI_EVENT_HDR_SIZE) {
1119 /* Complete event header */
1120 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1121
1122 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1123 kfree_skb(skb);
1124 skb = NULL;
1125
1126 err = -EILSEQ;
1127 break;
1128 }
1129 }
1130
1131 if (!hci_skb_expect(skb)) {
1132 /* Complete frame */
1133 btusb_recv_event(data, skb);
1134 skb = NULL;
1135 }
1136 }
1137
1138 data->evt_skb = skb;
1139 spin_unlock_irqrestore(&data->rxlock, flags);
1140
1141 return err;
1142 }
1143
1144 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1145 {
1146 /* Only queue ACL packet if intr_interval is set as it means
1147 * force_poll_sync has been enabled.
1148 */
1149 if (!data->intr_interval)
1150 return data->recv_acl(data->hdev, skb);
1151
1152 skb_queue_tail(&data->acl_q, skb);
1153 schedule_delayed_work(&data->rx_work, data->intr_interval);
1154
1155 return 0;
1156 }
1157
1158 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1159 {
1160 struct sk_buff *skb;
1161 unsigned long flags;
1162 int err = 0;
1163
1164 spin_lock_irqsave(&data->rxlock, flags);
1165 skb = data->acl_skb;
1166
1167 while (count) {
1168 int len;
1169
1170 if (!skb) {
1171 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1172 if (!skb) {
1173 err = -ENOMEM;
1174 break;
1175 }
1176
1177 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1178 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1179 }
1180
1181 len = min_t(uint, hci_skb_expect(skb), count);
1182 skb_put_data(skb, buffer, len);
1183
1184 count -= len;
1185 buffer += len;
1186 hci_skb_expect(skb) -= len;
1187
1188 if (skb->len == HCI_ACL_HDR_SIZE) {
1189 __le16 dlen = hci_acl_hdr(skb)->dlen;
1190
1191 /* Complete ACL header */
1192 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1193
1194 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1195 kfree_skb(skb);
1196 skb = NULL;
1197
1198 err = -EILSEQ;
1199 break;
1200 }
1201 }
1202
1203 if (!hci_skb_expect(skb)) {
1204 /* Complete frame */
1205 btusb_recv_acl(data, skb);
1206 skb = NULL;
1207 }
1208 }
1209
1210 data->acl_skb = skb;
1211 spin_unlock_irqrestore(&data->rxlock, flags);
1212
1213 return err;
1214 }
1215
1216 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1217 struct hci_sco_hdr *hdr)
1218 {
1219 __u16 handle;
1220
1221 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1222 // Can't validate, userspace controls everything.
1223 return true;
1224
1225 /*
1226 * USB isochronous transfers are not designed to be reliable and may
1227 * lose fragments. When this happens, the next first fragment
1228 * encountered might actually be a continuation fragment.
1229 * Validate the handle to detect it and drop it, or else the upper
1230 * layer will get garbage for a while.
1231 */
1232
1233 handle = hci_handle(__le16_to_cpu(hdr->handle));
1234
1235 switch (hci_conn_lookup_type(hdev, handle)) {
1236 case SCO_LINK:
1237 case ESCO_LINK:
1238 return true;
1239 default:
1240 return false;
1241 }
1242 }
1243
1244 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1245 {
1246 struct sk_buff *skb;
1247 unsigned long flags;
1248 int err = 0;
1249
1250 spin_lock_irqsave(&data->rxlock, flags);
1251 skb = data->sco_skb;
1252
1253 while (count) {
1254 int len;
1255
1256 if (!skb) {
1257 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1258 if (!skb) {
1259 err = -ENOMEM;
1260 break;
1261 }
1262
1263 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1264 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1265 }
1266
1267 len = min_t(uint, hci_skb_expect(skb), count);
1268 skb_put_data(skb, buffer, len);
1269
1270 count -= len;
1271 buffer += len;
1272 hci_skb_expect(skb) -= len;
1273
1274 if (skb->len == HCI_SCO_HDR_SIZE) {
1275 /* Complete SCO header */
1276 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1277
1278 hci_skb_expect(skb) = hdr->dlen;
1279
1280 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1281 !btusb_validate_sco_handle(data->hdev, hdr)) {
1282 kfree_skb(skb);
1283 skb = NULL;
1284
1285 err = -EILSEQ;
1286 break;
1287 }
1288 }
1289
1290 if (!hci_skb_expect(skb)) {
1291 /* Complete frame */
1292 hci_recv_frame(data->hdev, skb);
1293 skb = NULL;
1294 }
1295 }
1296
1297 data->sco_skb = skb;
1298 spin_unlock_irqrestore(&data->rxlock, flags);
1299
1300 return err;
1301 }
1302
1303 static void btusb_intr_complete(struct urb *urb)
1304 {
1305 struct hci_dev *hdev = urb->context;
1306 struct btusb_data *data = hci_get_drvdata(hdev);
1307 int err;
1308
1309 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1310 urb->actual_length);
1311
1312 if (!test_bit(HCI_RUNNING, &hdev->flags))
1313 return;
1314
1315 if (urb->status == 0) {
1316 hdev->stat.byte_rx += urb->actual_length;
1317
1318 if (btusb_recv_intr(data, urb->transfer_buffer,
1319 urb->actual_length) < 0) {
1320 bt_dev_err(hdev, "corrupted event packet");
1321 hdev->stat.err_rx++;
1322 }
1323 } else if (urb->status == -ENOENT) {
1324 /* Avoid suspend failed when usb_kill_urb */
1325 return;
1326 }
1327
1328 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1329 return;
1330
1331 usb_mark_last_busy(data->udev);
1332 usb_anchor_urb(urb, &data->intr_anchor);
1333
1334 err = usb_submit_urb(urb, GFP_ATOMIC);
1335 if (err < 0) {
1336 /* -EPERM: urb is being killed;
1337 * -ENODEV: device got disconnected
1338 */
1339 if (err != -EPERM && err != -ENODEV)
1340 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1341 urb, -err);
1342 if (err != -EPERM)
1343 hci_cmd_sync_cancel(hdev, -err);
1344 usb_unanchor_urb(urb);
1345 }
1346 }
1347
1348 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1349 {
1350 struct btusb_data *data = hci_get_drvdata(hdev);
1351 struct urb *urb;
1352 unsigned char *buf;
1353 unsigned int pipe;
1354 int err, size;
1355
1356 BT_DBG("%s", hdev->name);
1357
1358 if (!data->intr_ep)
1359 return -ENODEV;
1360
1361 urb = usb_alloc_urb(0, mem_flags);
1362 if (!urb)
1363 return -ENOMEM;
1364
1365 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1366
1367 buf = kmalloc(size, mem_flags);
1368 if (!buf) {
1369 usb_free_urb(urb);
1370 return -ENOMEM;
1371 }
1372
1373 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1374
1375 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1376 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1377
1378 urb->transfer_flags |= URB_FREE_BUFFER;
1379
1380 usb_anchor_urb(urb, &data->intr_anchor);
1381
1382 err = usb_submit_urb(urb, mem_flags);
1383 if (err < 0) {
1384 if (err != -EPERM && err != -ENODEV)
1385 bt_dev_err(hdev, "urb %p submission failed (%d)",
1386 urb, -err);
1387 if (err != -EPERM)
1388 hci_cmd_sync_cancel(hdev, -err);
1389 usb_unanchor_urb(urb);
1390 }
1391
1392 /* Only initialize intr_interval if URB poll sync is enabled */
1393 if (!data->poll_sync)
1394 goto done;
1395
1396 /* The units are frames (milliseconds) for full and low speed devices,
1397 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1398 * devices.
1399 *
1400 * This is done once on open/resume so it shouldn't change even if
1401 * force_poll_sync changes.
1402 */
1403 switch (urb->dev->speed) {
1404 case USB_SPEED_SUPER_PLUS:
1405 case USB_SPEED_SUPER: /* units are 125us */
1406 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1407 break;
1408 default:
1409 data->intr_interval = msecs_to_jiffies(urb->interval);
1410 break;
1411 }
1412
1413 done:
1414 usb_free_urb(urb);
1415
1416 return err;
1417 }
1418
1419 static void btusb_bulk_complete(struct urb *urb)
1420 {
1421 struct hci_dev *hdev = urb->context;
1422 struct btusb_data *data = hci_get_drvdata(hdev);
1423 int err;
1424
1425 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1426 urb->actual_length);
1427
1428 if (!test_bit(HCI_RUNNING, &hdev->flags))
1429 return;
1430
1431 if (urb->status == 0) {
1432 hdev->stat.byte_rx += urb->actual_length;
1433
1434 if (data->recv_bulk(data, urb->transfer_buffer,
1435 urb->actual_length) < 0) {
1436 bt_dev_err(hdev, "corrupted ACL packet");
1437 hdev->stat.err_rx++;
1438 }
1439 } else if (urb->status == -ENOENT) {
1440 /* Avoid suspend failed when usb_kill_urb */
1441 return;
1442 }
1443
1444 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1445 return;
1446
1447 usb_anchor_urb(urb, &data->bulk_anchor);
1448 usb_mark_last_busy(data->udev);
1449
1450 err = usb_submit_urb(urb, GFP_ATOMIC);
1451 if (err < 0) {
1452 /* -EPERM: urb is being killed;
1453 * -ENODEV: device got disconnected
1454 */
1455 if (err != -EPERM && err != -ENODEV)
1456 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1457 urb, -err);
1458 usb_unanchor_urb(urb);
1459 }
1460 }
1461
1462 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1463 {
1464 struct btusb_data *data = hci_get_drvdata(hdev);
1465 struct urb *urb;
1466 unsigned char *buf;
1467 unsigned int pipe;
1468 int err, size = HCI_MAX_FRAME_SIZE;
1469
1470 BT_DBG("%s", hdev->name);
1471
1472 if (!data->bulk_rx_ep)
1473 return -ENODEV;
1474
1475 urb = usb_alloc_urb(0, mem_flags);
1476 if (!urb)
1477 return -ENOMEM;
1478
1479 buf = kmalloc(size, mem_flags);
1480 if (!buf) {
1481 usb_free_urb(urb);
1482 return -ENOMEM;
1483 }
1484
1485 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1486
1487 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1488 btusb_bulk_complete, hdev);
1489
1490 urb->transfer_flags |= URB_FREE_BUFFER;
1491
1492 usb_mark_last_busy(data->udev);
1493 usb_anchor_urb(urb, &data->bulk_anchor);
1494
1495 err = usb_submit_urb(urb, mem_flags);
1496 if (err < 0) {
1497 if (err != -EPERM && err != -ENODEV)
1498 bt_dev_err(hdev, "urb %p submission failed (%d)",
1499 urb, -err);
1500 usb_unanchor_urb(urb);
1501 }
1502
1503 usb_free_urb(urb);
1504
1505 return err;
1506 }
1507
1508 static void btusb_isoc_complete(struct urb *urb)
1509 {
1510 struct hci_dev *hdev = urb->context;
1511 struct btusb_data *data = hci_get_drvdata(hdev);
1512 int i, err;
1513
1514 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1515 urb->actual_length);
1516
1517 if (!test_bit(HCI_RUNNING, &hdev->flags))
1518 return;
1519
1520 if (urb->status == 0) {
1521 for (i = 0; i < urb->number_of_packets; i++) {
1522 unsigned int offset = urb->iso_frame_desc[i].offset;
1523 unsigned int length = urb->iso_frame_desc[i].actual_length;
1524
1525 if (urb->iso_frame_desc[i].status)
1526 continue;
1527
1528 hdev->stat.byte_rx += length;
1529
1530 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1531 length) < 0) {
1532 bt_dev_err(hdev, "corrupted SCO packet");
1533 hdev->stat.err_rx++;
1534 }
1535 }
1536 } else if (urb->status == -ENOENT) {
1537 /* Avoid suspend failed when usb_kill_urb */
1538 return;
1539 }
1540
1541 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1542 return;
1543
1544 usb_anchor_urb(urb, &data->isoc_anchor);
1545
1546 err = usb_submit_urb(urb, GFP_ATOMIC);
1547 if (err < 0) {
1548 /* -EPERM: urb is being killed;
1549 * -ENODEV: device got disconnected
1550 */
1551 if (err != -EPERM && err != -ENODEV)
1552 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1553 urb, -err);
1554 usb_unanchor_urb(urb);
1555 }
1556 }
1557
1558 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1559 int mtu, struct btusb_data *data)
1560 {
1561 int i = 0, offset = 0;
1562 unsigned int interval;
1563
1564 BT_DBG("len %d mtu %d", len, mtu);
1565
1566 /* For mSBC ALT 6 settings some chips need to transmit the data
1567 * continuously without the zero length of USB packets.
1568 */
1569 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1570 goto ignore_usb_alt6_packet_flow;
1571
1572 /* For mSBC ALT 6 setting the host will send the packet at continuous
1573 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1574 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1575 * To maintain the rate we send 63bytes of usb packets alternatively for
1576 * 7ms and 8ms to maintain the rate as 7.5ms.
1577 */
1578 if (data->usb_alt6_packet_flow) {
1579 interval = 7;
1580 data->usb_alt6_packet_flow = false;
1581 } else {
1582 interval = 6;
1583 data->usb_alt6_packet_flow = true;
1584 }
1585
1586 for (i = 0; i < interval; i++) {
1587 urb->iso_frame_desc[i].offset = offset;
1588 urb->iso_frame_desc[i].length = offset;
1589 }
1590
1591 ignore_usb_alt6_packet_flow:
1592 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1593 urb->iso_frame_desc[i].offset = offset;
1594 urb->iso_frame_desc[i].length = len;
1595 i++;
1596 }
1597
1598 urb->number_of_packets = i;
1599 }
1600
1601 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1602 {
1603 int i, offset = 0;
1604
1605 BT_DBG("len %d mtu %d", len, mtu);
1606
1607 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1608 i++, offset += mtu, len -= mtu) {
1609 urb->iso_frame_desc[i].offset = offset;
1610 urb->iso_frame_desc[i].length = mtu;
1611 }
1612
1613 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1614 urb->iso_frame_desc[i].offset = offset;
1615 urb->iso_frame_desc[i].length = len;
1616 i++;
1617 }
1618
1619 urb->number_of_packets = i;
1620 }
1621
1622 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1623 {
1624 struct btusb_data *data = hci_get_drvdata(hdev);
1625 struct urb *urb;
1626 unsigned char *buf;
1627 unsigned int pipe;
1628 int err, size;
1629
1630 BT_DBG("%s", hdev->name);
1631
1632 if (!data->isoc_rx_ep)
1633 return -ENODEV;
1634
1635 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1636 if (!urb)
1637 return -ENOMEM;
1638
1639 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1640 BTUSB_MAX_ISOC_FRAMES;
1641
1642 buf = kmalloc(size, mem_flags);
1643 if (!buf) {
1644 usb_free_urb(urb);
1645 return -ENOMEM;
1646 }
1647
1648 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1649
1650 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1651 hdev, data->isoc_rx_ep->bInterval);
1652
1653 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1654
1655 __fill_isoc_descriptor(urb, size,
1656 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1657
1658 usb_anchor_urb(urb, &data->isoc_anchor);
1659
1660 err = usb_submit_urb(urb, mem_flags);
1661 if (err < 0) {
1662 if (err != -EPERM && err != -ENODEV)
1663 bt_dev_err(hdev, "urb %p submission failed (%d)",
1664 urb, -err);
1665 usb_unanchor_urb(urb);
1666 }
1667
1668 usb_free_urb(urb);
1669
1670 return err;
1671 }
1672
1673 static void btusb_diag_complete(struct urb *urb)
1674 {
1675 struct hci_dev *hdev = urb->context;
1676 struct btusb_data *data = hci_get_drvdata(hdev);
1677 int err;
1678
1679 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1680 urb->actual_length);
1681
1682 if (urb->status == 0) {
1683 struct sk_buff *skb;
1684
1685 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1686 if (skb) {
1687 skb_put_data(skb, urb->transfer_buffer,
1688 urb->actual_length);
1689 hci_recv_diag(hdev, skb);
1690 }
1691 } else if (urb->status == -ENOENT) {
1692 /* Avoid suspend failed when usb_kill_urb */
1693 return;
1694 }
1695
1696 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1697 return;
1698
1699 usb_anchor_urb(urb, &data->diag_anchor);
1700 usb_mark_last_busy(data->udev);
1701
1702 err = usb_submit_urb(urb, GFP_ATOMIC);
1703 if (err < 0) {
1704 /* -EPERM: urb is being killed;
1705 * -ENODEV: device got disconnected
1706 */
1707 if (err != -EPERM && err != -ENODEV)
1708 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1709 urb, -err);
1710 usb_unanchor_urb(urb);
1711 }
1712 }
1713
1714 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1715 {
1716 struct btusb_data *data = hci_get_drvdata(hdev);
1717 struct urb *urb;
1718 unsigned char *buf;
1719 unsigned int pipe;
1720 int err, size = HCI_MAX_FRAME_SIZE;
1721
1722 BT_DBG("%s", hdev->name);
1723
1724 if (!data->diag_rx_ep)
1725 return -ENODEV;
1726
1727 urb = usb_alloc_urb(0, mem_flags);
1728 if (!urb)
1729 return -ENOMEM;
1730
1731 buf = kmalloc(size, mem_flags);
1732 if (!buf) {
1733 usb_free_urb(urb);
1734 return -ENOMEM;
1735 }
1736
1737 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1738
1739 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1740 btusb_diag_complete, hdev);
1741
1742 urb->transfer_flags |= URB_FREE_BUFFER;
1743
1744 usb_mark_last_busy(data->udev);
1745 usb_anchor_urb(urb, &data->diag_anchor);
1746
1747 err = usb_submit_urb(urb, mem_flags);
1748 if (err < 0) {
1749 if (err != -EPERM && err != -ENODEV)
1750 bt_dev_err(hdev, "urb %p submission failed (%d)",
1751 urb, -err);
1752 usb_unanchor_urb(urb);
1753 }
1754
1755 usb_free_urb(urb);
1756
1757 return err;
1758 }
1759
1760 static void btusb_tx_complete(struct urb *urb)
1761 {
1762 struct sk_buff *skb = urb->context;
1763 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1764 struct btusb_data *data = hci_get_drvdata(hdev);
1765 unsigned long flags;
1766
1767 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1768 urb->actual_length);
1769
1770 if (!test_bit(HCI_RUNNING, &hdev->flags))
1771 goto done;
1772
1773 if (!urb->status) {
1774 hdev->stat.byte_tx += urb->transfer_buffer_length;
1775 } else {
1776 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1777 hci_cmd_sync_cancel(hdev, -urb->status);
1778 hdev->stat.err_tx++;
1779 }
1780
1781 done:
1782 spin_lock_irqsave(&data->txlock, flags);
1783 data->tx_in_flight--;
1784 spin_unlock_irqrestore(&data->txlock, flags);
1785
1786 kfree(urb->setup_packet);
1787
1788 kfree_skb(skb);
1789 }
1790
1791 static void btusb_isoc_tx_complete(struct urb *urb)
1792 {
1793 struct sk_buff *skb = urb->context;
1794 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1795
1796 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1797 urb->actual_length);
1798
1799 if (!test_bit(HCI_RUNNING, &hdev->flags))
1800 goto done;
1801
1802 if (!urb->status)
1803 hdev->stat.byte_tx += urb->transfer_buffer_length;
1804 else
1805 hdev->stat.err_tx++;
1806
1807 done:
1808 kfree(urb->setup_packet);
1809
1810 kfree_skb(skb);
1811 }
1812
1813 static int btusb_open(struct hci_dev *hdev)
1814 {
1815 struct btusb_data *data = hci_get_drvdata(hdev);
1816 int err;
1817
1818 BT_DBG("%s", hdev->name);
1819
1820 err = usb_autopm_get_interface(data->intf);
1821 if (err < 0)
1822 return err;
1823
1824 /* Patching USB firmware files prior to starting any URBs of HCI path
1825 * It is more safe to use USB bulk channel for downloading USB patch
1826 */
1827 if (data->setup_on_usb) {
1828 err = data->setup_on_usb(hdev);
1829 if (err < 0)
1830 goto setup_fail;
1831 }
1832
1833 data->intf->needs_remote_wakeup = 1;
1834
1835 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1836 goto done;
1837
1838 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1839 if (err < 0)
1840 goto failed;
1841
1842 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1843 if (err < 0) {
1844 usb_kill_anchored_urbs(&data->intr_anchor);
1845 goto failed;
1846 }
1847
1848 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1849 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1850
1851 if (data->diag) {
1852 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1853 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1854 }
1855
1856 done:
1857 usb_autopm_put_interface(data->intf);
1858 return 0;
1859
1860 failed:
1861 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1862 setup_fail:
1863 usb_autopm_put_interface(data->intf);
1864 return err;
1865 }
1866
1867 static void btusb_stop_traffic(struct btusb_data *data)
1868 {
1869 usb_kill_anchored_urbs(&data->intr_anchor);
1870 usb_kill_anchored_urbs(&data->bulk_anchor);
1871 usb_kill_anchored_urbs(&data->isoc_anchor);
1872 usb_kill_anchored_urbs(&data->diag_anchor);
1873 usb_kill_anchored_urbs(&data->ctrl_anchor);
1874 }
1875
1876 static int btusb_close(struct hci_dev *hdev)
1877 {
1878 struct btusb_data *data = hci_get_drvdata(hdev);
1879 int err;
1880
1881 BT_DBG("%s", hdev->name);
1882
1883 cancel_delayed_work(&data->rx_work);
1884 cancel_work_sync(&data->work);
1885 cancel_work_sync(&data->waker);
1886
1887 skb_queue_purge(&data->acl_q);
1888
1889 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1890 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1891 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1892 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1893
1894 btusb_stop_traffic(data);
1895 btusb_free_frags(data);
1896
1897 err = usb_autopm_get_interface(data->intf);
1898 if (err < 0)
1899 goto failed;
1900
1901 data->intf->needs_remote_wakeup = 0;
1902
1903 /* Enable remote wake up for auto-suspend */
1904 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1905 data->intf->needs_remote_wakeup = 1;
1906
1907 usb_autopm_put_interface(data->intf);
1908
1909 failed:
1910 usb_scuttle_anchored_urbs(&data->deferred);
1911 return 0;
1912 }
1913
1914 static int btusb_flush(struct hci_dev *hdev)
1915 {
1916 struct btusb_data *data = hci_get_drvdata(hdev);
1917
1918 BT_DBG("%s", hdev->name);
1919
1920 cancel_delayed_work(&data->rx_work);
1921
1922 skb_queue_purge(&data->acl_q);
1923
1924 usb_kill_anchored_urbs(&data->tx_anchor);
1925 btusb_free_frags(data);
1926
1927 return 0;
1928 }
1929
1930 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1931 {
1932 struct btusb_data *data = hci_get_drvdata(hdev);
1933 struct usb_ctrlrequest *dr;
1934 struct urb *urb;
1935 unsigned int pipe;
1936
1937 urb = usb_alloc_urb(0, GFP_KERNEL);
1938 if (!urb)
1939 return ERR_PTR(-ENOMEM);
1940
1941 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1942 if (!dr) {
1943 usb_free_urb(urb);
1944 return ERR_PTR(-ENOMEM);
1945 }
1946
1947 dr->bRequestType = data->cmdreq_type;
1948 dr->bRequest = data->cmdreq;
1949 dr->wIndex = 0;
1950 dr->wValue = 0;
1951 dr->wLength = __cpu_to_le16(skb->len);
1952
1953 pipe = usb_sndctrlpipe(data->udev, 0x00);
1954
1955 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1956 skb->data, skb->len, btusb_tx_complete, skb);
1957
1958 skb->dev = (void *)hdev;
1959
1960 return urb;
1961 }
1962
1963 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1964 {
1965 struct btusb_data *data = hci_get_drvdata(hdev);
1966 struct urb *urb;
1967 unsigned int pipe;
1968
1969 if (!data->bulk_tx_ep)
1970 return ERR_PTR(-ENODEV);
1971
1972 urb = usb_alloc_urb(0, GFP_KERNEL);
1973 if (!urb)
1974 return ERR_PTR(-ENOMEM);
1975
1976 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1977
1978 usb_fill_bulk_urb(urb, data->udev, pipe,
1979 skb->data, skb->len, btusb_tx_complete, skb);
1980
1981 skb->dev = (void *)hdev;
1982
1983 return urb;
1984 }
1985
1986 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1987 {
1988 struct btusb_data *data = hci_get_drvdata(hdev);
1989 struct urb *urb;
1990 unsigned int pipe;
1991
1992 if (!data->isoc_tx_ep)
1993 return ERR_PTR(-ENODEV);
1994
1995 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1996 if (!urb)
1997 return ERR_PTR(-ENOMEM);
1998
1999 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2000
2001 usb_fill_int_urb(urb, data->udev, pipe,
2002 skb->data, skb->len, btusb_isoc_tx_complete,
2003 skb, data->isoc_tx_ep->bInterval);
2004
2005 urb->transfer_flags = URB_ISO_ASAP;
2006
2007 if (data->isoc_altsetting == 6)
2008 __fill_isoc_descriptor_msbc(urb, skb->len,
2009 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2010 data);
2011 else
2012 __fill_isoc_descriptor(urb, skb->len,
2013 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2014 skb->dev = (void *)hdev;
2015
2016 return urb;
2017 }
2018
2019 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2020 {
2021 struct btusb_data *data = hci_get_drvdata(hdev);
2022 int err;
2023
2024 usb_anchor_urb(urb, &data->tx_anchor);
2025
2026 err = usb_submit_urb(urb, GFP_KERNEL);
2027 if (err < 0) {
2028 if (err != -EPERM && err != -ENODEV)
2029 bt_dev_err(hdev, "urb %p submission failed (%d)",
2030 urb, -err);
2031 kfree(urb->setup_packet);
2032 usb_unanchor_urb(urb);
2033 } else {
2034 usb_mark_last_busy(data->udev);
2035 }
2036
2037 usb_free_urb(urb);
2038 return err;
2039 }
2040
2041 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2042 {
2043 struct btusb_data *data = hci_get_drvdata(hdev);
2044 unsigned long flags;
2045 bool suspending;
2046
2047 spin_lock_irqsave(&data->txlock, flags);
2048 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2049 if (!suspending)
2050 data->tx_in_flight++;
2051 spin_unlock_irqrestore(&data->txlock, flags);
2052
2053 if (!suspending)
2054 return submit_tx_urb(hdev, urb);
2055
2056 usb_anchor_urb(urb, &data->deferred);
2057 schedule_work(&data->waker);
2058
2059 usb_free_urb(urb);
2060 return 0;
2061 }
2062
2063 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2064 {
2065 struct urb *urb;
2066
2067 BT_DBG("%s", hdev->name);
2068
2069 switch (hci_skb_pkt_type(skb)) {
2070 case HCI_COMMAND_PKT:
2071 urb = alloc_ctrl_urb(hdev, skb);
2072 if (IS_ERR(urb))
2073 return PTR_ERR(urb);
2074
2075 hdev->stat.cmd_tx++;
2076 return submit_or_queue_tx_urb(hdev, urb);
2077
2078 case HCI_ACLDATA_PKT:
2079 urb = alloc_bulk_urb(hdev, skb);
2080 if (IS_ERR(urb))
2081 return PTR_ERR(urb);
2082
2083 hdev->stat.acl_tx++;
2084 return submit_or_queue_tx_urb(hdev, urb);
2085
2086 case HCI_SCODATA_PKT:
2087 if (hci_conn_num(hdev, SCO_LINK) < 1)
2088 return -ENODEV;
2089
2090 urb = alloc_isoc_urb(hdev, skb);
2091 if (IS_ERR(urb))
2092 return PTR_ERR(urb);
2093
2094 hdev->stat.sco_tx++;
2095 return submit_tx_urb(hdev, urb);
2096
2097 case HCI_ISODATA_PKT:
2098 urb = alloc_bulk_urb(hdev, skb);
2099 if (IS_ERR(urb))
2100 return PTR_ERR(urb);
2101
2102 return submit_or_queue_tx_urb(hdev, urb);
2103 }
2104
2105 return -EILSEQ;
2106 }
2107
2108 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2109 {
2110 struct btusb_data *data = hci_get_drvdata(hdev);
2111
2112 BT_DBG("%s evt %d", hdev->name, evt);
2113
2114 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2115 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2116 data->air_mode = evt;
2117 schedule_work(&data->work);
2118 }
2119 }
2120
2121 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2122 {
2123 struct btusb_data *data = hci_get_drvdata(hdev);
2124 struct usb_interface *intf = data->isoc;
2125 struct usb_endpoint_descriptor *ep_desc;
2126 int i, err;
2127
2128 if (!data->isoc)
2129 return -ENODEV;
2130
2131 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2132 if (err < 0) {
2133 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2134 return err;
2135 }
2136
2137 data->isoc_altsetting = altsetting;
2138
2139 data->isoc_tx_ep = NULL;
2140 data->isoc_rx_ep = NULL;
2141
2142 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2143 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2144
2145 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2146 data->isoc_tx_ep = ep_desc;
2147 continue;
2148 }
2149
2150 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2151 data->isoc_rx_ep = ep_desc;
2152 continue;
2153 }
2154 }
2155
2156 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2157 bt_dev_err(hdev, "invalid SCO descriptors");
2158 return -ENODEV;
2159 }
2160
2161 return 0;
2162 }
2163
2164 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2165 {
2166 struct btusb_data *data = hci_get_drvdata(hdev);
2167 int err;
2168
2169 if (data->isoc_altsetting != new_alts) {
2170 unsigned long flags;
2171
2172 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2173 usb_kill_anchored_urbs(&data->isoc_anchor);
2174
2175 /* When isochronous alternate setting needs to be
2176 * changed, because SCO connection has been added
2177 * or removed, a packet fragment may be left in the
2178 * reassembling state. This could lead to wrongly
2179 * assembled fragments.
2180 *
2181 * Clear outstanding fragment when selecting a new
2182 * alternate setting.
2183 */
2184 spin_lock_irqsave(&data->rxlock, flags);
2185 dev_kfree_skb_irq(data->sco_skb);
2186 data->sco_skb = NULL;
2187 spin_unlock_irqrestore(&data->rxlock, flags);
2188
2189 err = __set_isoc_interface(hdev, new_alts);
2190 if (err < 0)
2191 return err;
2192 }
2193
2194 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2195 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2196 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2197 else
2198 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2199 }
2200
2201 return 0;
2202 }
2203
2204 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2205 int alt)
2206 {
2207 struct usb_interface *intf = data->isoc;
2208 int i;
2209
2210 BT_DBG("Looking for Alt no :%d", alt);
2211
2212 if (!intf)
2213 return NULL;
2214
2215 for (i = 0; i < intf->num_altsetting; i++) {
2216 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2217 return &intf->altsetting[i];
2218 }
2219
2220 return NULL;
2221 }
2222
2223 static void btusb_work(struct work_struct *work)
2224 {
2225 struct btusb_data *data = container_of(work, struct btusb_data, work);
2226 struct hci_dev *hdev = data->hdev;
2227 int new_alts = 0;
2228 int err;
2229
2230 if (data->sco_num > 0) {
2231 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2232 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2233 if (err < 0) {
2234 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2235 usb_kill_anchored_urbs(&data->isoc_anchor);
2236 return;
2237 }
2238
2239 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2240 }
2241
2242 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2243 if (hdev->voice_setting & 0x0020) {
2244 static const int alts[3] = { 2, 4, 5 };
2245
2246 new_alts = alts[data->sco_num - 1];
2247 } else {
2248 new_alts = data->sco_num;
2249 }
2250 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2251 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2252 * many adapters do not support it. Alt 1 appears to
2253 * work for all adapters that do not have alt 6, and
2254 * which work with WBS at all. Some devices prefer
2255 * alt 3 (HCI payload >= 60 Bytes let air packet
2256 * data satisfy 60 bytes), requiring
2257 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2258 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2259 */
2260 if (btusb_find_altsetting(data, 6))
2261 new_alts = 6;
2262 else if (btusb_find_altsetting(data, 3) &&
2263 hdev->sco_mtu >= 72 &&
2264 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2265 new_alts = 3;
2266 else
2267 new_alts = 1;
2268 }
2269
2270 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2271 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2272 } else {
2273 usb_kill_anchored_urbs(&data->isoc_anchor);
2274
2275 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2276 __set_isoc_interface(hdev, 0);
2277
2278 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2279 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2280 }
2281 }
2282
2283 static void btusb_waker(struct work_struct *work)
2284 {
2285 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2286 int err;
2287
2288 err = usb_autopm_get_interface(data->intf);
2289 if (err < 0)
2290 return;
2291
2292 usb_autopm_put_interface(data->intf);
2293 }
2294
2295 static void btusb_rx_work(struct work_struct *work)
2296 {
2297 struct btusb_data *data = container_of(work, struct btusb_data,
2298 rx_work.work);
2299 struct sk_buff *skb;
2300
2301 /* Dequeue ACL data received during the interval */
2302 while ((skb = skb_dequeue(&data->acl_q)))
2303 data->recv_acl(data->hdev, skb);
2304 }
2305
2306 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2307 {
2308 struct sk_buff *skb;
2309 u8 val = 0x00;
2310
2311 BT_DBG("%s", hdev->name);
2312
2313 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2314 if (IS_ERR(skb))
2315 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2316 else
2317 kfree_skb(skb);
2318
2319 return 0;
2320 }
2321
2322 static int btusb_setup_csr(struct hci_dev *hdev)
2323 {
2324 struct btusb_data *data = hci_get_drvdata(hdev);
2325 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2326 struct hci_rp_read_local_version *rp;
2327 struct sk_buff *skb;
2328 bool is_fake = false;
2329 int ret;
2330
2331 BT_DBG("%s", hdev->name);
2332
2333 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2334 HCI_INIT_TIMEOUT);
2335 if (IS_ERR(skb)) {
2336 int err = PTR_ERR(skb);
2337 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2338 return err;
2339 }
2340
2341 rp = skb_pull_data(skb, sizeof(*rp));
2342 if (!rp) {
2343 bt_dev_err(hdev, "CSR: Local version length mismatch");
2344 kfree_skb(skb);
2345 return -EIO;
2346 }
2347
2348 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2349 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2350
2351 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2352 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2353 le16_to_cpu(rp->manufacturer));
2354
2355 /* Detect a wide host of Chinese controllers that aren't CSR.
2356 *
2357 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2358 *
2359 * The main thing they have in common is that these are really popular low-cost
2360 * options that support newer Bluetooth versions but rely on heavy VID/PID
2361 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2362 *
2363 * We detect actual CSR devices by checking that the HCI manufacturer code
2364 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2365 * HCI rev values always match. As they both store the firmware number.
2366 */
2367 if (le16_to_cpu(rp->manufacturer) != 10 ||
2368 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2369 is_fake = true;
2370
2371 /* Known legit CSR firmware build numbers and their supported BT versions:
2372 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2373 * - 1.2 (0x2) -> 0x04d9, 0x0529
2374 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2375 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2376 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2377 *
2378 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2379 * support BT 1.1 only; so it's a dead giveaway when some
2380 * third-party BT 4.0 dongle reuses it.
2381 */
2382 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2383 rp->hci_ver > BLUETOOTH_VER_1_1)
2384 is_fake = true;
2385
2386 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2387 rp->hci_ver > BLUETOOTH_VER_1_2)
2388 is_fake = true;
2389
2390 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2391 rp->hci_ver > BLUETOOTH_VER_2_0)
2392 is_fake = true;
2393
2394 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2395 rp->hci_ver > BLUETOOTH_VER_2_1)
2396 is_fake = true;
2397
2398 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2399 rp->hci_ver > BLUETOOTH_VER_4_0)
2400 is_fake = true;
2401
2402 /* Other clones which beat all the above checks */
2403 else if (bcdDevice == 0x0134 &&
2404 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2405 rp->hci_ver == BLUETOOTH_VER_2_0)
2406 is_fake = true;
2407
2408 if (is_fake) {
2409 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2410
2411 /* Generally these clones have big discrepancies between
2412 * advertised features and what's actually supported.
2413 * Probably will need to be expanded in the future;
2414 * without these the controller will lock up.
2415 */
2416 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2417 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2418 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2419 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2420
2421 /* Clear the reset quirk since this is not an actual
2422 * early Bluetooth 1.1 device from CSR.
2423 */
2424 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2425 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2426
2427 /*
2428 * Special workaround for these BT 4.0 chip clones, and potentially more:
2429 *
2430 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2431 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2432 *
2433 * These controllers are really messed-up.
2434 *
2435 * 1. Their bulk RX endpoint will never report any data unless
2436 * the device was suspended at least once (yes, really).
2437 * 2. They will not wakeup when autosuspended and receiving data
2438 * on their bulk RX endpoint from e.g. a keyboard or mouse
2439 * (IOW remote-wakeup support is broken for the bulk endpoint).
2440 *
2441 * To fix 1. enable runtime-suspend, force-suspend the
2442 * HCI and then wake-it up by disabling runtime-suspend.
2443 *
2444 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2445 * will still be autosuspended when it is not open.
2446 *
2447 * --
2448 *
2449 * Because these are widespread problems we prefer generic solutions; so
2450 * apply this initialization quirk to every controller that gets here,
2451 * it should be harmless. The alternative is to not work at all.
2452 */
2453 pm_runtime_allow(&data->udev->dev);
2454
2455 ret = pm_runtime_suspend(&data->udev->dev);
2456 if (ret >= 0)
2457 msleep(200);
2458 else
2459 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2460
2461 pm_runtime_forbid(&data->udev->dev);
2462
2463 device_set_wakeup_capable(&data->udev->dev, false);
2464
2465 /* Re-enable autosuspend if this was requested */
2466 if (enable_autosuspend)
2467 usb_enable_autosuspend(data->udev);
2468 }
2469
2470 kfree_skb(skb);
2471
2472 return 0;
2473 }
2474
2475 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2476 {
2477 struct sk_buff *skb;
2478 struct hci_event_hdr *hdr;
2479 struct hci_ev_cmd_complete *evt;
2480
2481 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2482 if (!skb)
2483 return -ENOMEM;
2484
2485 hdr = skb_put(skb, sizeof(*hdr));
2486 hdr->evt = HCI_EV_CMD_COMPLETE;
2487 hdr->plen = sizeof(*evt) + 1;
2488
2489 evt = skb_put(skb, sizeof(*evt));
2490 evt->ncmd = 0x01;
2491 evt->opcode = cpu_to_le16(opcode);
2492
2493 skb_put_u8(skb, 0x00);
2494
2495 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2496
2497 return hci_recv_frame(hdev, skb);
2498 }
2499
2500 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2501 int count)
2502 {
2503 struct hci_dev *hdev = data->hdev;
2504
2505 /* When the device is in bootloader mode, then it can send
2506 * events via the bulk endpoint. These events are treated the
2507 * same way as the ones received from the interrupt endpoint.
2508 */
2509 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2510 return btusb_recv_intr(data, buffer, count);
2511
2512 return btusb_recv_bulk(data, buffer, count);
2513 }
2514
2515 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2516 {
2517 struct urb *urb;
2518
2519 BT_DBG("%s", hdev->name);
2520
2521 switch (hci_skb_pkt_type(skb)) {
2522 case HCI_COMMAND_PKT:
2523 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2524 struct hci_command_hdr *cmd = (void *)skb->data;
2525 __u16 opcode = le16_to_cpu(cmd->opcode);
2526
2527 /* When in bootloader mode and the command 0xfc09
2528 * is received, it needs to be send down the
2529 * bulk endpoint. So allocate a bulk URB instead.
2530 */
2531 if (opcode == 0xfc09)
2532 urb = alloc_bulk_urb(hdev, skb);
2533 else
2534 urb = alloc_ctrl_urb(hdev, skb);
2535
2536 /* When the 0xfc01 command is issued to boot into
2537 * the operational firmware, it will actually not
2538 * send a command complete event. To keep the flow
2539 * control working inject that event here.
2540 */
2541 if (opcode == 0xfc01)
2542 inject_cmd_complete(hdev, opcode);
2543 } else {
2544 urb = alloc_ctrl_urb(hdev, skb);
2545 }
2546 if (IS_ERR(urb))
2547 return PTR_ERR(urb);
2548
2549 hdev->stat.cmd_tx++;
2550 return submit_or_queue_tx_urb(hdev, urb);
2551
2552 case HCI_ACLDATA_PKT:
2553 urb = alloc_bulk_urb(hdev, skb);
2554 if (IS_ERR(urb))
2555 return PTR_ERR(urb);
2556
2557 hdev->stat.acl_tx++;
2558 return submit_or_queue_tx_urb(hdev, urb);
2559
2560 case HCI_SCODATA_PKT:
2561 if (hci_conn_num(hdev, SCO_LINK) < 1)
2562 return -ENODEV;
2563
2564 urb = alloc_isoc_urb(hdev, skb);
2565 if (IS_ERR(urb))
2566 return PTR_ERR(urb);
2567
2568 hdev->stat.sco_tx++;
2569 return submit_tx_urb(hdev, urb);
2570
2571 case HCI_ISODATA_PKT:
2572 urb = alloc_bulk_urb(hdev, skb);
2573 if (IS_ERR(urb))
2574 return PTR_ERR(urb);
2575
2576 return submit_or_queue_tx_urb(hdev, urb);
2577 }
2578
2579 return -EILSEQ;
2580 }
2581
2582 static int btusb_setup_realtek(struct hci_dev *hdev)
2583 {
2584 struct btusb_data *data = hci_get_drvdata(hdev);
2585 int ret;
2586
2587 ret = btrtl_setup_realtek(hdev);
2588
2589 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2590 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2591
2592 return ret;
2593 }
2594
2595 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2596 {
2597 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2598 struct rtk_dev_coredump_hdr hdr = {
2599 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2600 };
2601
2602 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2603 skb->len);
2604
2605 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2606 kfree_skb(skb);
2607
2608 return 0;
2609 }
2610
2611 return hci_recv_frame(hdev, skb);
2612 }
2613
2614 /* UHW CR mapping */
2615 #define MTK_BT_MISC 0x70002510
2616 #define MTK_BT_SUBSYS_RST 0x70002610
2617 #define MTK_UDMA_INT_STA_BT 0x74000024
2618 #define MTK_UDMA_INT_STA_BT1 0x74000308
2619 #define MTK_BT_WDT_STATUS 0x740003A0
2620 #define MTK_EP_RST_OPT 0x74011890
2621 #define MTK_EP_RST_IN_OUT_OPT 0x00010001
2622 #define MTK_BT_RST_DONE 0x00000100
2623 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2624 #define MTK_BT_READ_DEV_ID 0x70010200
2625
2626
2627 static void btusb_mtk_wmt_recv(struct urb *urb)
2628 {
2629 struct hci_dev *hdev = urb->context;
2630 struct btusb_data *data = hci_get_drvdata(hdev);
2631 struct sk_buff *skb;
2632 int err;
2633
2634 if (urb->status == 0 && urb->actual_length > 0) {
2635 hdev->stat.byte_rx += urb->actual_length;
2636
2637 /* WMT event shouldn't be fragmented and the size should be
2638 * less than HCI_WMT_MAX_EVENT_SIZE.
2639 */
2640 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2641 if (!skb) {
2642 hdev->stat.err_rx++;
2643 kfree(urb->setup_packet);
2644 return;
2645 }
2646
2647 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2648 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2649
2650 /* When someone waits for the WMT event, the skb is being cloned
2651 * and being processed the events from there then.
2652 */
2653 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2654 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2655 if (!data->evt_skb) {
2656 kfree_skb(skb);
2657 kfree(urb->setup_packet);
2658 return;
2659 }
2660 }
2661
2662 err = hci_recv_frame(hdev, skb);
2663 if (err < 0) {
2664 kfree_skb(data->evt_skb);
2665 data->evt_skb = NULL;
2666 kfree(urb->setup_packet);
2667 return;
2668 }
2669
2670 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2671 &data->flags)) {
2672 /* Barrier to sync with other CPUs */
2673 smp_mb__after_atomic();
2674 wake_up_bit(&data->flags,
2675 BTUSB_TX_WAIT_VND_EVT);
2676 }
2677 kfree(urb->setup_packet);
2678 return;
2679 } else if (urb->status == -ENOENT) {
2680 /* Avoid suspend failed when usb_kill_urb */
2681 return;
2682 }
2683
2684 usb_mark_last_busy(data->udev);
2685
2686 /* The URB complete handler is still called with urb->actual_length = 0
2687 * when the event is not available, so we should keep re-submitting
2688 * URB until WMT event returns, Also, It's necessary to wait some time
2689 * between the two consecutive control URBs to relax the target device
2690 * to generate the event. Otherwise, the WMT event cannot return from
2691 * the device successfully.
2692 */
2693 udelay(500);
2694
2695 usb_anchor_urb(urb, &data->ctrl_anchor);
2696 err = usb_submit_urb(urb, GFP_ATOMIC);
2697 if (err < 0) {
2698 kfree(urb->setup_packet);
2699 /* -EPERM: urb is being killed;
2700 * -ENODEV: device got disconnected
2701 */
2702 if (err != -EPERM && err != -ENODEV)
2703 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2704 urb, -err);
2705 usb_unanchor_urb(urb);
2706 }
2707 }
2708
2709 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2710 {
2711 struct btusb_data *data = hci_get_drvdata(hdev);
2712 struct usb_ctrlrequest *dr;
2713 unsigned char *buf;
2714 int err, size = 64;
2715 unsigned int pipe;
2716 struct urb *urb;
2717
2718 urb = usb_alloc_urb(0, GFP_KERNEL);
2719 if (!urb)
2720 return -ENOMEM;
2721
2722 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2723 if (!dr) {
2724 usb_free_urb(urb);
2725 return -ENOMEM;
2726 }
2727
2728 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2729 dr->bRequest = 1;
2730 dr->wIndex = cpu_to_le16(0);
2731 dr->wValue = cpu_to_le16(48);
2732 dr->wLength = cpu_to_le16(size);
2733
2734 buf = kmalloc(size, GFP_KERNEL);
2735 if (!buf) {
2736 kfree(dr);
2737 usb_free_urb(urb);
2738 return -ENOMEM;
2739 }
2740
2741 pipe = usb_rcvctrlpipe(data->udev, 0);
2742
2743 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2744 buf, size, btusb_mtk_wmt_recv, hdev);
2745
2746 urb->transfer_flags |= URB_FREE_BUFFER;
2747
2748 usb_anchor_urb(urb, &data->ctrl_anchor);
2749 err = usb_submit_urb(urb, GFP_KERNEL);
2750 if (err < 0) {
2751 if (err != -EPERM && err != -ENODEV)
2752 bt_dev_err(hdev, "urb %p submission failed (%d)",
2753 urb, -err);
2754 usb_unanchor_urb(urb);
2755 }
2756
2757 usb_free_urb(urb);
2758
2759 return err;
2760 }
2761
2762 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2763 struct btmtk_hci_wmt_params *wmt_params)
2764 {
2765 struct btusb_data *data = hci_get_drvdata(hdev);
2766 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2767 u32 hlen, status = BTMTK_WMT_INVALID;
2768 struct btmtk_hci_wmt_evt *wmt_evt;
2769 struct btmtk_hci_wmt_cmd *wc;
2770 struct btmtk_wmt_hdr *hdr;
2771 int err;
2772
2773 /* Send the WMT command and wait until the WMT event returns */
2774 hlen = sizeof(*hdr) + wmt_params->dlen;
2775 if (hlen > 255)
2776 return -EINVAL;
2777
2778 wc = kzalloc(hlen, GFP_KERNEL);
2779 if (!wc)
2780 return -ENOMEM;
2781
2782 hdr = &wc->hdr;
2783 hdr->dir = 1;
2784 hdr->op = wmt_params->op;
2785 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2786 hdr->flag = wmt_params->flag;
2787 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2788
2789 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2790
2791 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2792 * it needs constantly polling control pipe until the host received the
2793 * WMT event, thus, we should require to specifically acquire PM counter
2794 * on the USB to prevent the interface from entering auto suspended
2795 * while WMT cmd/event in progress.
2796 */
2797 err = usb_autopm_get_interface(data->intf);
2798 if (err < 0)
2799 goto err_free_wc;
2800
2801 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2802
2803 if (err < 0) {
2804 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2805 usb_autopm_put_interface(data->intf);
2806 goto err_free_wc;
2807 }
2808
2809 /* Submit control IN URB on demand to process the WMT event */
2810 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2811
2812 usb_autopm_put_interface(data->intf);
2813
2814 if (err < 0)
2815 goto err_free_wc;
2816
2817 /* The vendor specific WMT commands are all answered by a vendor
2818 * specific event and will have the Command Status or Command
2819 * Complete as with usual HCI command flow control.
2820 *
2821 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2822 * state to be cleared. The driver specific event receive routine
2823 * will clear that state and with that indicate completion of the
2824 * WMT command.
2825 */
2826 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2827 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2828 if (err == -EINTR) {
2829 bt_dev_err(hdev, "Execution of wmt command interrupted");
2830 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2831 goto err_free_wc;
2832 }
2833
2834 if (err) {
2835 bt_dev_err(hdev, "Execution of wmt command timed out");
2836 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2837 err = -ETIMEDOUT;
2838 goto err_free_wc;
2839 }
2840
2841 if (data->evt_skb == NULL)
2842 goto err_free_wc;
2843
2844 /* Parse and handle the return WMT event */
2845 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2846 if (wmt_evt->whdr.op != hdr->op) {
2847 bt_dev_err(hdev, "Wrong op received %d expected %d",
2848 wmt_evt->whdr.op, hdr->op);
2849 err = -EIO;
2850 goto err_free_skb;
2851 }
2852
2853 switch (wmt_evt->whdr.op) {
2854 case BTMTK_WMT_SEMAPHORE:
2855 if (wmt_evt->whdr.flag == 2)
2856 status = BTMTK_WMT_PATCH_UNDONE;
2857 else
2858 status = BTMTK_WMT_PATCH_DONE;
2859 break;
2860 case BTMTK_WMT_FUNC_CTRL:
2861 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2862 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2863 status = BTMTK_WMT_ON_DONE;
2864 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2865 status = BTMTK_WMT_ON_PROGRESS;
2866 else
2867 status = BTMTK_WMT_ON_UNDONE;
2868 break;
2869 case BTMTK_WMT_PATCH_DWNLD:
2870 if (wmt_evt->whdr.flag == 2)
2871 status = BTMTK_WMT_PATCH_DONE;
2872 else if (wmt_evt->whdr.flag == 1)
2873 status = BTMTK_WMT_PATCH_PROGRESS;
2874 else
2875 status = BTMTK_WMT_PATCH_UNDONE;
2876 break;
2877 }
2878
2879 if (wmt_params->status)
2880 *wmt_params->status = status;
2881
2882 err_free_skb:
2883 kfree_skb(data->evt_skb);
2884 data->evt_skb = NULL;
2885 err_free_wc:
2886 kfree(wc);
2887 return err;
2888 }
2889
2890 static int btusb_mtk_func_query(struct hci_dev *hdev)
2891 {
2892 struct btmtk_hci_wmt_params wmt_params;
2893 int status, err;
2894 u8 param = 0;
2895
2896 /* Query whether the function is enabled */
2897 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2898 wmt_params.flag = 4;
2899 wmt_params.dlen = sizeof(param);
2900 wmt_params.data = &param;
2901 wmt_params.status = &status;
2902
2903 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2904 if (err < 0) {
2905 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2906 return err;
2907 }
2908
2909 return status;
2910 }
2911
2912 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2913 {
2914 struct hci_dev *hdev = data->hdev;
2915 int pipe, err;
2916 void *buf;
2917
2918 buf = kzalloc(4, GFP_KERNEL);
2919 if (!buf)
2920 return -ENOMEM;
2921
2922 put_unaligned_le32(val, buf);
2923
2924 pipe = usb_sndctrlpipe(data->udev, 0);
2925 err = usb_control_msg(data->udev, pipe, 0x02,
2926 0x5E,
2927 reg >> 16, reg & 0xffff,
2928 buf, 4, USB_CTRL_SET_TIMEOUT);
2929 if (err < 0) {
2930 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2931 goto err_free_buf;
2932 }
2933
2934 err_free_buf:
2935 kfree(buf);
2936
2937 return err;
2938 }
2939
2940 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2941 {
2942 struct hci_dev *hdev = data->hdev;
2943 int pipe, err;
2944 void *buf;
2945
2946 buf = kzalloc(4, GFP_KERNEL);
2947 if (!buf)
2948 return -ENOMEM;
2949
2950 pipe = usb_rcvctrlpipe(data->udev, 0);
2951 err = usb_control_msg(data->udev, pipe, 0x01,
2952 0xDE,
2953 reg >> 16, reg & 0xffff,
2954 buf, 4, USB_CTRL_SET_TIMEOUT);
2955 if (err < 0) {
2956 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2957 goto err_free_buf;
2958 }
2959
2960 *val = get_unaligned_le32(buf);
2961 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2962
2963 err_free_buf:
2964 kfree(buf);
2965
2966 return err;
2967 }
2968
2969 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2970 {
2971 int pipe, err, size = sizeof(u32);
2972 void *buf;
2973
2974 buf = kzalloc(size, GFP_KERNEL);
2975 if (!buf)
2976 return -ENOMEM;
2977
2978 pipe = usb_rcvctrlpipe(data->udev, 0);
2979 err = usb_control_msg(data->udev, pipe, 0x63,
2980 USB_TYPE_VENDOR | USB_DIR_IN,
2981 reg >> 16, reg & 0xffff,
2982 buf, size, USB_CTRL_SET_TIMEOUT);
2983 if (err < 0)
2984 goto err_free_buf;
2985
2986 *val = get_unaligned_le32(buf);
2987
2988 err_free_buf:
2989 kfree(buf);
2990
2991 return err;
2992 }
2993
2994 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2995 {
2996 return btusb_mtk_reg_read(data, reg, id);
2997 }
2998
2999 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
3000 {
3001 struct btusb_data *data = hci_get_drvdata(hdev);
3002 u32 val = 0;
3003
3004 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3005
3006 return val & MTK_BT_RST_DONE;
3007 }
3008
3009 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3010 {
3011 struct btusb_data *data = hci_get_drvdata(hdev);
3012 struct btmediatek_data *mediatek;
3013 u32 val;
3014 int err;
3015
3016 /* It's MediaTek specific bluetooth reset mechanism via USB */
3017 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3018 bt_dev_err(hdev, "last reset failed? Not resetting again");
3019 return -EBUSY;
3020 }
3021
3022 err = usb_autopm_get_interface(data->intf);
3023 if (err < 0)
3024 return err;
3025
3026 btusb_stop_traffic(data);
3027 usb_kill_anchored_urbs(&data->tx_anchor);
3028 mediatek = hci_get_priv(hdev);
3029
3030 if (mediatek->dev_id == 0x7925) {
3031 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3032 val |= (1 << 5);
3033 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3034 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3035 val &= 0xFFFF00FF;
3036 val |= (1 << 13);
3037 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3038 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3039 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3040 val |= (1 << 0);
3041 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3042 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3043 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3044 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3045 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3046 msleep(100);
3047 } else {
3048 /* It's Device EndPoint Reset Option Register */
3049 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3050 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3051 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3052
3053 /* Reset the bluetooth chip via USB interface. */
3054 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3055 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3056 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3057 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3058 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3059 /* MT7921 need to delay 20ms between toggle reset bit */
3060 msleep(20);
3061 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3062 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3063 }
3064
3065 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3066 val & MTK_BT_RST_DONE, 20000, 1000000);
3067 if (err < 0)
3068 bt_dev_err(hdev, "Reset timeout");
3069
3070 btusb_mtk_id_get(data, 0x70010200, &val);
3071 if (!val)
3072 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3073
3074 usb_queue_reset_device(data->intf);
3075
3076 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3077
3078 return err;
3079 }
3080
3081 static int btusb_mtk_setup(struct hci_dev *hdev)
3082 {
3083 struct btusb_data *data = hci_get_drvdata(hdev);
3084 struct btmtk_hci_wmt_params wmt_params;
3085 ktime_t calltime, delta, rettime;
3086 struct btmtk_tci_sleep tci_sleep;
3087 unsigned long long duration;
3088 struct sk_buff *skb;
3089 const char *fwname;
3090 int err, status;
3091 u32 dev_id = 0;
3092 char fw_bin_name[64];
3093 u32 fw_version = 0, fw_flavor = 0;
3094 u8 param;
3095 struct btmediatek_data *mediatek;
3096
3097 calltime = ktime_get();
3098
3099 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3100 if (err < 0) {
3101 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3102 return err;
3103 }
3104
3105 if (!dev_id || dev_id != 0x7663) {
3106 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3107 if (err < 0) {
3108 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3109 return err;
3110 }
3111 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3112 if (err < 0) {
3113 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3114 return err;
3115 }
3116 err = btusb_mtk_id_get(data, 0x70010020, &fw_flavor);
3117 if (err < 0) {
3118 bt_dev_err(hdev, "Failed to get fw flavor (%d)", err);
3119 return err;
3120 }
3121 }
3122
3123 mediatek = hci_get_priv(hdev);
3124 mediatek->dev_id = dev_id;
3125 mediatek->reset_sync = btusb_mtk_reset;
3126
3127 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3128 if (err < 0)
3129 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3130
3131 switch (dev_id) {
3132 case 0x7663:
3133 fwname = FIRMWARE_MT7663;
3134 break;
3135 case 0x7668:
3136 fwname = FIRMWARE_MT7668;
3137 break;
3138 case 0x7922:
3139 case 0x7961:
3140 case 0x7925:
3141 if (dev_id == 0x7925)
3142 snprintf(fw_bin_name, sizeof(fw_bin_name),
3143 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3144 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3145 else if (dev_id == 0x7961 && fw_flavor)
3146 snprintf(fw_bin_name, sizeof(fw_bin_name),
3147 "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
3148 dev_id & 0xffff, (fw_version & 0xff) + 1);
3149 else
3150 snprintf(fw_bin_name, sizeof(fw_bin_name),
3151 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3152 dev_id & 0xffff, (fw_version & 0xff) + 1);
3153
3154 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3155 btusb_mtk_hci_wmt_sync);
3156 if (err < 0) {
3157 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3158 return err;
3159 }
3160
3161 /* It's Device EndPoint Reset Option Register */
3162 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3163
3164 /* Enable Bluetooth protocol */
3165 param = 1;
3166 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3167 wmt_params.flag = 0;
3168 wmt_params.dlen = sizeof(param);
3169 wmt_params.data = &param;
3170 wmt_params.status = NULL;
3171
3172 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3173 if (err < 0) {
3174 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3175 return err;
3176 }
3177
3178 hci_set_msft_opcode(hdev, 0xFD30);
3179 hci_set_aosp_capable(hdev);
3180 goto done;
3181 default:
3182 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3183 dev_id);
3184 return -ENODEV;
3185 }
3186
3187 /* Query whether the firmware is already download */
3188 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3189 wmt_params.flag = 1;
3190 wmt_params.dlen = 0;
3191 wmt_params.data = NULL;
3192 wmt_params.status = &status;
3193
3194 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3195 if (err < 0) {
3196 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3197 return err;
3198 }
3199
3200 if (status == BTMTK_WMT_PATCH_DONE) {
3201 bt_dev_info(hdev, "firmware already downloaded");
3202 goto ignore_setup_fw;
3203 }
3204
3205 /* Setup a firmware which the device definitely requires */
3206 err = btmtk_setup_firmware(hdev, fwname,
3207 btusb_mtk_hci_wmt_sync);
3208 if (err < 0)
3209 return err;
3210
3211 ignore_setup_fw:
3212 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3213 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3214 2000, 5000000);
3215 /* -ETIMEDOUT happens */
3216 if (err < 0)
3217 return err;
3218
3219 /* The other errors happen in btusb_mtk_func_query */
3220 if (status < 0)
3221 return status;
3222
3223 if (status == BTMTK_WMT_ON_DONE) {
3224 bt_dev_info(hdev, "function already on");
3225 goto ignore_func_on;
3226 }
3227
3228 /* Enable Bluetooth protocol */
3229 param = 1;
3230 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3231 wmt_params.flag = 0;
3232 wmt_params.dlen = sizeof(param);
3233 wmt_params.data = &param;
3234 wmt_params.status = NULL;
3235
3236 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3237 if (err < 0) {
3238 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3239 return err;
3240 }
3241
3242 ignore_func_on:
3243 /* Apply the low power environment setup */
3244 tci_sleep.mode = 0x5;
3245 tci_sleep.duration = cpu_to_le16(0x640);
3246 tci_sleep.host_duration = cpu_to_le16(0x640);
3247 tci_sleep.host_wakeup_pin = 0;
3248 tci_sleep.time_compensation = 0;
3249
3250 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3251 HCI_INIT_TIMEOUT);
3252 if (IS_ERR(skb)) {
3253 err = PTR_ERR(skb);
3254 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3255 return err;
3256 }
3257 kfree_skb(skb);
3258
3259 done:
3260 rettime = ktime_get();
3261 delta = ktime_sub(rettime, calltime);
3262 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3263
3264 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3265
3266 return 0;
3267 }
3268
3269 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3270 {
3271 struct btmtk_hci_wmt_params wmt_params;
3272 u8 param = 0;
3273 int err;
3274
3275 /* Disable the device */
3276 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3277 wmt_params.flag = 0;
3278 wmt_params.dlen = sizeof(param);
3279 wmt_params.data = &param;
3280 wmt_params.status = NULL;
3281
3282 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3283 if (err < 0) {
3284 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3285 return err;
3286 }
3287
3288 return 0;
3289 }
3290
3291 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3292 {
3293 struct btusb_data *data = hci_get_drvdata(hdev);
3294 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3295
3296 switch (handle) {
3297 case 0xfc6f: /* Firmware dump from device */
3298 /* When the firmware hangs, the device can no longer
3299 * suspend and thus disable auto-suspend.
3300 */
3301 usb_disable_autosuspend(data->udev);
3302
3303 /* We need to forward the diagnostic packet to userspace daemon
3304 * for backward compatibility, so we have to clone the packet
3305 * extraly for the in-kernel coredump support.
3306 */
3307 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3308 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3309
3310 if (skb_cd)
3311 btmtk_process_coredump(hdev, skb_cd);
3312 }
3313
3314 fallthrough;
3315 case 0x05ff: /* Firmware debug logging 1 */
3316 case 0x05fe: /* Firmware debug logging 2 */
3317 return hci_recv_diag(hdev, skb);
3318 }
3319
3320 return hci_recv_frame(hdev, skb);
3321 }
3322
3323 #ifdef CONFIG_PM
3324 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3325 static int marvell_config_oob_wake(struct hci_dev *hdev)
3326 {
3327 struct sk_buff *skb;
3328 struct btusb_data *data = hci_get_drvdata(hdev);
3329 struct device *dev = &data->udev->dev;
3330 u16 pin, gap, opcode;
3331 int ret;
3332 u8 cmd[5];
3333
3334 /* Move on if no wakeup pin specified */
3335 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3336 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3337 return 0;
3338
3339 /* Vendor specific command to configure a GPIO as wake-up pin */
3340 opcode = hci_opcode_pack(0x3F, 0x59);
3341 cmd[0] = opcode & 0xFF;
3342 cmd[1] = opcode >> 8;
3343 cmd[2] = 2; /* length of parameters that follow */
3344 cmd[3] = pin;
3345 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3346
3347 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3348 if (!skb) {
3349 bt_dev_err(hdev, "%s: No memory", __func__);
3350 return -ENOMEM;
3351 }
3352
3353 skb_put_data(skb, cmd, sizeof(cmd));
3354 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3355
3356 ret = btusb_send_frame(hdev, skb);
3357 if (ret) {
3358 bt_dev_err(hdev, "%s: configuration failed", __func__);
3359 kfree_skb(skb);
3360 return ret;
3361 }
3362
3363 return 0;
3364 }
3365 #endif
3366
3367 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3368 const bdaddr_t *bdaddr)
3369 {
3370 struct sk_buff *skb;
3371 u8 buf[8];
3372 long ret;
3373
3374 buf[0] = 0xfe;
3375 buf[1] = sizeof(bdaddr_t);
3376 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3377
3378 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3379 if (IS_ERR(skb)) {
3380 ret = PTR_ERR(skb);
3381 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3382 ret);
3383 return ret;
3384 }
3385 kfree_skb(skb);
3386
3387 return 0;
3388 }
3389
3390 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3391 const bdaddr_t *bdaddr)
3392 {
3393 struct sk_buff *skb;
3394 u8 buf[10];
3395 long ret;
3396
3397 buf[0] = 0x01;
3398 buf[1] = 0x01;
3399 buf[2] = 0x00;
3400 buf[3] = sizeof(bdaddr_t);
3401 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3402
3403 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, 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 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3415 const bdaddr_t *bdaddr)
3416 {
3417 struct sk_buff *skb;
3418 u8 buf[6];
3419 long ret;
3420
3421 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3422
3423 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3424 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3425 if (IS_ERR(skb)) {
3426 ret = PTR_ERR(skb);
3427 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3428 return ret;
3429 }
3430 kfree_skb(skb);
3431
3432 return 0;
3433 }
3434
3435 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3436 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3437 #define QCA_MEMDUMP_VSE_CLASS 0x01
3438 #define QCA_MEMDUMP_MSG_TYPE 0x08
3439 #define QCA_MEMDUMP_PKT_SIZE 248
3440 #define QCA_LAST_SEQUENCE_NUM 0xffff
3441
3442 struct qca_dump_hdr {
3443 u8 vse_class;
3444 u8 msg_type;
3445 __le16 seqno;
3446 u8 reserved;
3447 union {
3448 u8 data[0];
3449 struct {
3450 __le32 ram_dump_size;
3451 u8 data0[0];
3452 } __packed;
3453 };
3454 } __packed;
3455
3456
3457 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3458 {
3459 char buf[128];
3460 struct btusb_data *btdata = hci_get_drvdata(hdev);
3461
3462 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3463 btdata->qca_dump.controller_id);
3464 skb_put_data(skb, buf, strlen(buf));
3465
3466 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3467 btdata->qca_dump.fw_version);
3468 skb_put_data(skb, buf, strlen(buf));
3469
3470 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3471 btusb_driver.name);
3472 skb_put_data(skb, buf, strlen(buf));
3473
3474 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3475 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3476 skb_put_data(skb, buf, strlen(buf));
3477
3478 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3479 hdev->lmp_subver);
3480 skb_put_data(skb, buf, strlen(buf));
3481 }
3482
3483 static void btusb_coredump_qca(struct hci_dev *hdev)
3484 {
3485 static const u8 param[] = { 0x26 };
3486 struct sk_buff *skb;
3487
3488 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3489 if (IS_ERR(skb))
3490 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3491 kfree_skb(skb);
3492 }
3493
3494 /*
3495 * ==0: not a dump pkt.
3496 * < 0: fails to handle a dump pkt
3497 * > 0: otherwise.
3498 */
3499 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3500 {
3501 int ret = 1;
3502 u8 pkt_type;
3503 u8 *sk_ptr;
3504 unsigned int sk_len;
3505 u16 seqno;
3506 u32 dump_size;
3507
3508 struct hci_event_hdr *event_hdr;
3509 struct hci_acl_hdr *acl_hdr;
3510 struct qca_dump_hdr *dump_hdr;
3511 struct btusb_data *btdata = hci_get_drvdata(hdev);
3512 struct usb_device *udev = btdata->udev;
3513
3514 pkt_type = hci_skb_pkt_type(skb);
3515 sk_ptr = skb->data;
3516 sk_len = skb->len;
3517
3518 if (pkt_type == HCI_ACLDATA_PKT) {
3519 acl_hdr = hci_acl_hdr(skb);
3520 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3521 return 0;
3522 sk_ptr += HCI_ACL_HDR_SIZE;
3523 sk_len -= HCI_ACL_HDR_SIZE;
3524 event_hdr = (struct hci_event_hdr *)sk_ptr;
3525 } else {
3526 event_hdr = hci_event_hdr(skb);
3527 }
3528
3529 if ((event_hdr->evt != HCI_VENDOR_PKT)
3530 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3531 return 0;
3532
3533 sk_ptr += HCI_EVENT_HDR_SIZE;
3534 sk_len -= HCI_EVENT_HDR_SIZE;
3535
3536 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3537 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3538 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3539 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3540 return 0;
3541
3542 /*it is dump pkt now*/
3543 seqno = le16_to_cpu(dump_hdr->seqno);
3544 if (seqno == 0) {
3545 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3546 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3547 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3548 ret = -EILSEQ;
3549 bt_dev_err(hdev, "Invalid memdump size(%u)",
3550 dump_size);
3551 goto out;
3552 }
3553
3554 ret = hci_devcd_init(hdev, dump_size);
3555 if (ret < 0) {
3556 bt_dev_err(hdev, "memdump init error(%d)", ret);
3557 goto out;
3558 }
3559
3560 btdata->qca_dump.ram_dump_size = dump_size;
3561 btdata->qca_dump.ram_dump_seqno = 0;
3562 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3563 sk_len -= offsetof(struct qca_dump_hdr, data0);
3564
3565 usb_disable_autosuspend(udev);
3566 bt_dev_info(hdev, "%s memdump size(%u)\n",
3567 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3568 dump_size);
3569 } else {
3570 sk_ptr += offsetof(struct qca_dump_hdr, data);
3571 sk_len -= offsetof(struct qca_dump_hdr, data);
3572 }
3573
3574 if (!btdata->qca_dump.ram_dump_size) {
3575 ret = -EINVAL;
3576 bt_dev_err(hdev, "memdump is not active");
3577 goto out;
3578 }
3579
3580 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3581 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3582 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3583 bt_dev_err(hdev,
3584 "expected memdump seqno(%u) is not received(%u)\n",
3585 btdata->qca_dump.ram_dump_seqno, seqno);
3586 btdata->qca_dump.ram_dump_seqno = seqno;
3587 kfree_skb(skb);
3588 return ret;
3589 }
3590
3591 skb_pull(skb, skb->len - sk_len);
3592 hci_devcd_append(hdev, skb);
3593 btdata->qca_dump.ram_dump_seqno++;
3594 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3595 bt_dev_info(hdev,
3596 "memdump done: pkts(%u), total(%u)\n",
3597 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3598
3599 hci_devcd_complete(hdev);
3600 goto out;
3601 }
3602 return ret;
3603
3604 out:
3605 if (btdata->qca_dump.ram_dump_size)
3606 usb_enable_autosuspend(udev);
3607 btdata->qca_dump.ram_dump_size = 0;
3608 btdata->qca_dump.ram_dump_seqno = 0;
3609 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3610
3611 if (ret < 0)
3612 kfree_skb(skb);
3613 return ret;
3614 }
3615
3616 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3617 {
3618 if (handle_dump_pkt_qca(hdev, skb))
3619 return 0;
3620 return hci_recv_frame(hdev, skb);
3621 }
3622
3623 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3624 {
3625 if (handle_dump_pkt_qca(hdev, skb))
3626 return 0;
3627 return hci_recv_frame(hdev, skb);
3628 }
3629
3630
3631 #define QCA_DFU_PACKET_LEN 4096
3632
3633 #define QCA_GET_TARGET_VERSION 0x09
3634 #define QCA_CHECK_STATUS 0x05
3635 #define QCA_DFU_DOWNLOAD 0x01
3636
3637 #define QCA_SYSCFG_UPDATED 0x40
3638 #define QCA_PATCH_UPDATED 0x80
3639 #define QCA_DFU_TIMEOUT 3000
3640 #define QCA_FLAG_MULTI_NVM 0x80
3641 #define QCA_BT_RESET_WAIT_MS 100
3642
3643 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3644 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3645
3646 struct qca_version {
3647 __le32 rom_version;
3648 __le32 patch_version;
3649 __le32 ram_version;
3650 __u8 chip_id;
3651 __u8 platform_id;
3652 __le16 flag;
3653 __u8 reserved[4];
3654 } __packed;
3655
3656 struct qca_rampatch_version {
3657 __le16 rom_version_high;
3658 __le16 rom_version_low;
3659 __le16 patch_version;
3660 } __packed;
3661
3662 struct qca_device_info {
3663 u32 rom_version;
3664 u8 rampatch_hdr; /* length of header in rampatch */
3665 u8 nvm_hdr; /* length of header in NVM */
3666 u8 ver_offset; /* offset of version structure in rampatch */
3667 };
3668
3669 static const struct qca_device_info qca_devices_table[] = {
3670 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3671 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3672 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3673 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3674 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3675 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3676 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3677 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3678 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3679 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3680 };
3681
3682 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3683 void *data, u16 size)
3684 {
3685 int pipe, err;
3686 u8 *buf;
3687
3688 buf = kmalloc(size, GFP_KERNEL);
3689 if (!buf)
3690 return -ENOMEM;
3691
3692 /* Found some of USB hosts have IOT issues with ours so that we should
3693 * not wait until HCI layer is ready.
3694 */
3695 pipe = usb_rcvctrlpipe(udev, 0);
3696 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3697 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3698 if (err < 0) {
3699 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3700 goto done;
3701 }
3702
3703 memcpy(data, buf, size);
3704
3705 done:
3706 kfree(buf);
3707
3708 return err;
3709 }
3710
3711 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3712 const struct firmware *firmware,
3713 size_t hdr_size)
3714 {
3715 struct btusb_data *btdata = hci_get_drvdata(hdev);
3716 struct usb_device *udev = btdata->udev;
3717 size_t count, size, sent = 0;
3718 int pipe, len, err;
3719 u8 *buf;
3720
3721 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3722 if (!buf)
3723 return -ENOMEM;
3724
3725 count = firmware->size;
3726
3727 size = min_t(size_t, count, hdr_size);
3728 memcpy(buf, firmware->data, size);
3729
3730 /* USB patches should go down to controller through USB path
3731 * because binary format fits to go down through USB channel.
3732 * USB control path is for patching headers and USB bulk is for
3733 * patch body.
3734 */
3735 pipe = usb_sndctrlpipe(udev, 0);
3736 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3737 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3738 if (err < 0) {
3739 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3740 goto done;
3741 }
3742
3743 sent += size;
3744 count -= size;
3745
3746 /* ep2 need time to switch from function acl to function dfu,
3747 * so we add 20ms delay here.
3748 */
3749 msleep(20);
3750
3751 while (count) {
3752 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3753
3754 memcpy(buf, firmware->data + sent, size);
3755
3756 pipe = usb_sndbulkpipe(udev, 0x02);
3757 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3758 QCA_DFU_TIMEOUT);
3759 if (err < 0) {
3760 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3761 sent, firmware->size, err);
3762 break;
3763 }
3764
3765 if (size != len) {
3766 bt_dev_err(hdev, "Failed to get bulk buffer");
3767 err = -EILSEQ;
3768 break;
3769 }
3770
3771 sent += size;
3772 count -= size;
3773 }
3774
3775 done:
3776 kfree(buf);
3777 return err;
3778 }
3779
3780 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3781 struct qca_version *ver,
3782 const struct qca_device_info *info)
3783 {
3784 struct qca_rampatch_version *rver;
3785 const struct firmware *fw;
3786 u32 ver_rom, ver_patch, rver_rom;
3787 u16 rver_rom_low, rver_rom_high, rver_patch;
3788 char fwname[64];
3789 int err;
3790
3791 ver_rom = le32_to_cpu(ver->rom_version);
3792 ver_patch = le32_to_cpu(ver->patch_version);
3793
3794 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3795
3796 err = request_firmware(&fw, fwname, &hdev->dev);
3797 if (err) {
3798 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3799 fwname, err);
3800 return err;
3801 }
3802
3803 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3804
3805 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3806 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3807 rver_patch = le16_to_cpu(rver->patch_version);
3808
3809 if (ver_rom & ~0xffffU) {
3810 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3811 rver_rom = rver_rom_high << 16 | rver_rom_low;
3812 } else {
3813 rver_rom = rver_rom_low;
3814 }
3815
3816 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3817 "firmware rome 0x%x build 0x%x",
3818 rver_rom, rver_patch, ver_rom, ver_patch);
3819
3820 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3821 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3822 err = -EINVAL;
3823 goto done;
3824 }
3825
3826 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3827
3828 done:
3829 release_firmware(fw);
3830
3831 return err;
3832 }
3833
3834 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3835 const struct qca_version *ver)
3836 {
3837 u32 rom_version = le32_to_cpu(ver->rom_version);
3838 u16 flag = le16_to_cpu(ver->flag);
3839
3840 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3841 /* The board_id should be split into two bytes
3842 * The 1st byte is chip ID, and the 2nd byte is platform ID
3843 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3844 * we have several platforms, and platform IDs are continuously added
3845 * Platform ID:
3846 * 0x00 is for Mobile
3847 * 0x01 is for X86
3848 * 0x02 is for Automotive
3849 * 0x03 is for Consumer electronic
3850 */
3851 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3852 const char *variant;
3853
3854 switch (le32_to_cpu(ver->ram_version)) {
3855 case WCN6855_2_0_RAM_VERSION_GF:
3856 case WCN6855_2_1_RAM_VERSION_GF:
3857 variant = "_gf";
3858 break;
3859 default:
3860 variant = "";
3861 break;
3862 }
3863
3864 if (board_id == 0) {
3865 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3866 rom_version, variant);
3867 } else {
3868 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3869 rom_version, variant, board_id);
3870 }
3871 } else {
3872 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3873 rom_version);
3874 }
3875
3876 }
3877
3878 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3879 struct qca_version *ver,
3880 const struct qca_device_info *info)
3881 {
3882 const struct firmware *fw;
3883 char fwname[64];
3884 int err;
3885
3886 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3887
3888 err = request_firmware(&fw, fwname, &hdev->dev);
3889 if (err) {
3890 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3891 fwname, err);
3892 return err;
3893 }
3894
3895 bt_dev_info(hdev, "using NVM file: %s", fwname);
3896
3897 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3898
3899 release_firmware(fw);
3900
3901 return err;
3902 }
3903
3904 /* identify the ROM version and check whether patches are needed */
3905 static bool btusb_qca_need_patch(struct usb_device *udev)
3906 {
3907 struct qca_version ver;
3908
3909 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3910 sizeof(ver)) < 0)
3911 return false;
3912 /* only low ROM versions need patches */
3913 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3914 }
3915
3916 static int btusb_setup_qca(struct hci_dev *hdev)
3917 {
3918 struct btusb_data *btdata = hci_get_drvdata(hdev);
3919 struct usb_device *udev = btdata->udev;
3920 const struct qca_device_info *info = NULL;
3921 struct qca_version ver;
3922 u32 ver_rom;
3923 u8 status;
3924 int i, err;
3925
3926 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3927 sizeof(ver));
3928 if (err < 0)
3929 return err;
3930
3931 ver_rom = le32_to_cpu(ver.rom_version);
3932
3933 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3934 if (ver_rom == qca_devices_table[i].rom_version)
3935 info = &qca_devices_table[i];
3936 }
3937 if (!info) {
3938 /* If the rom_version is not matched in the qca_devices_table
3939 * and the high ROM version is not zero, we assume this chip no
3940 * need to load the rampatch and nvm.
3941 */
3942 if (ver_rom & ~0xffffU)
3943 return 0;
3944
3945 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3946 return -ENODEV;
3947 }
3948
3949 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3950 sizeof(status));
3951 if (err < 0)
3952 return err;
3953
3954 if (!(status & QCA_PATCH_UPDATED)) {
3955 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3956 if (err < 0)
3957 return err;
3958 }
3959
3960 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3961 sizeof(ver));
3962 if (err < 0)
3963 return err;
3964
3965 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3966 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3967
3968 if (!(status & QCA_SYSCFG_UPDATED)) {
3969 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3970 if (err < 0)
3971 return err;
3972
3973 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3974 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3975 * cause potential enable failure.
3976 */
3977 if (info->rom_version >= 0x00130201)
3978 msleep(QCA_BT_RESET_WAIT_MS);
3979 }
3980
3981 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3982 * work with the likes of HSP/HFP mSBC.
3983 */
3984 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3985
3986 return 0;
3987 }
3988
3989 static inline int __set_diag_interface(struct hci_dev *hdev)
3990 {
3991 struct btusb_data *data = hci_get_drvdata(hdev);
3992 struct usb_interface *intf = data->diag;
3993 int i;
3994
3995 if (!data->diag)
3996 return -ENODEV;
3997
3998 data->diag_tx_ep = NULL;
3999 data->diag_rx_ep = NULL;
4000
4001 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4002 struct usb_endpoint_descriptor *ep_desc;
4003
4004 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4005
4006 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4007 data->diag_tx_ep = ep_desc;
4008 continue;
4009 }
4010
4011 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4012 data->diag_rx_ep = ep_desc;
4013 continue;
4014 }
4015 }
4016
4017 if (!data->diag_tx_ep || !data->diag_rx_ep) {
4018 bt_dev_err(hdev, "invalid diagnostic descriptors");
4019 return -ENODEV;
4020 }
4021
4022 return 0;
4023 }
4024
4025 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4026 {
4027 struct btusb_data *data = hci_get_drvdata(hdev);
4028 struct sk_buff *skb;
4029 struct urb *urb;
4030 unsigned int pipe;
4031
4032 if (!data->diag_tx_ep)
4033 return ERR_PTR(-ENODEV);
4034
4035 urb = usb_alloc_urb(0, GFP_KERNEL);
4036 if (!urb)
4037 return ERR_PTR(-ENOMEM);
4038
4039 skb = bt_skb_alloc(2, GFP_KERNEL);
4040 if (!skb) {
4041 usb_free_urb(urb);
4042 return ERR_PTR(-ENOMEM);
4043 }
4044
4045 skb_put_u8(skb, 0xf0);
4046 skb_put_u8(skb, enable);
4047
4048 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4049
4050 usb_fill_bulk_urb(urb, data->udev, pipe,
4051 skb->data, skb->len, btusb_tx_complete, skb);
4052
4053 skb->dev = (void *)hdev;
4054
4055 return urb;
4056 }
4057
4058 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4059 {
4060 struct btusb_data *data = hci_get_drvdata(hdev);
4061 struct urb *urb;
4062
4063 if (!data->diag)
4064 return -ENODEV;
4065
4066 if (!test_bit(HCI_RUNNING, &hdev->flags))
4067 return -ENETDOWN;
4068
4069 urb = alloc_diag_urb(hdev, enable);
4070 if (IS_ERR(urb))
4071 return PTR_ERR(urb);
4072
4073 return submit_or_queue_tx_urb(hdev, urb);
4074 }
4075
4076 #ifdef CONFIG_PM
4077 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4078 {
4079 struct btusb_data *data = priv;
4080
4081 pm_wakeup_event(&data->udev->dev, 0);
4082 pm_system_wakeup();
4083
4084 /* Disable only if not already disabled (keep it balanced) */
4085 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4086 disable_irq_nosync(irq);
4087 disable_irq_wake(irq);
4088 }
4089 return IRQ_HANDLED;
4090 }
4091
4092 static const struct of_device_id btusb_match_table[] = {
4093 { .compatible = "usb1286,204e" },
4094 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4095 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4096 { }
4097 };
4098 MODULE_DEVICE_TABLE(of, btusb_match_table);
4099
4100 /* Use an oob wakeup pin? */
4101 static int btusb_config_oob_wake(struct hci_dev *hdev)
4102 {
4103 struct btusb_data *data = hci_get_drvdata(hdev);
4104 struct device *dev = &data->udev->dev;
4105 int irq, ret;
4106
4107 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4108
4109 if (!of_match_device(btusb_match_table, dev))
4110 return 0;
4111
4112 /* Move on if no IRQ specified */
4113 irq = of_irq_get_byname(dev->of_node, "wakeup");
4114 if (irq <= 0) {
4115 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4116 return 0;
4117 }
4118
4119 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4120 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4121 0, "OOB Wake-on-BT", data);
4122 if (ret) {
4123 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4124 return ret;
4125 }
4126
4127 ret = device_init_wakeup(dev, true);
4128 if (ret) {
4129 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4130 return ret;
4131 }
4132
4133 data->oob_wake_irq = irq;
4134 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4135 return 0;
4136 }
4137 #endif
4138
4139 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4140 {
4141 if (dmi_check_system(btusb_needs_reset_resume_table))
4142 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4143 }
4144
4145 static bool btusb_wakeup(struct hci_dev *hdev)
4146 {
4147 struct btusb_data *data = hci_get_drvdata(hdev);
4148
4149 return device_may_wakeup(&data->udev->dev);
4150 }
4151
4152 static int btusb_shutdown_qca(struct hci_dev *hdev)
4153 {
4154 struct sk_buff *skb;
4155
4156 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4157 if (IS_ERR(skb)) {
4158 bt_dev_err(hdev, "HCI reset during shutdown failed");
4159 return PTR_ERR(skb);
4160 }
4161 kfree_skb(skb);
4162
4163 return 0;
4164 }
4165
4166 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4167 size_t count, loff_t *ppos)
4168 {
4169 struct btusb_data *data = file->private_data;
4170 char buf[3];
4171
4172 buf[0] = data->poll_sync ? 'Y' : 'N';
4173 buf[1] = '\n';
4174 buf[2] = '\0';
4175 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4176 }
4177
4178 static ssize_t force_poll_sync_write(struct file *file,
4179 const char __user *user_buf,
4180 size_t count, loff_t *ppos)
4181 {
4182 struct btusb_data *data = file->private_data;
4183 bool enable;
4184 int err;
4185
4186 err = kstrtobool_from_user(user_buf, count, &enable);
4187 if (err)
4188 return err;
4189
4190 /* Only allow changes while the adapter is down */
4191 if (test_bit(HCI_UP, &data->hdev->flags))
4192 return -EPERM;
4193
4194 if (data->poll_sync == enable)
4195 return -EALREADY;
4196
4197 data->poll_sync = enable;
4198
4199 return count;
4200 }
4201
4202 static const struct file_operations force_poll_sync_fops = {
4203 .open = simple_open,
4204 .read = force_poll_sync_read,
4205 .write = force_poll_sync_write,
4206 .llseek = default_llseek,
4207 };
4208
4209 static int btusb_probe(struct usb_interface *intf,
4210 const struct usb_device_id *id)
4211 {
4212 struct usb_endpoint_descriptor *ep_desc;
4213 struct gpio_desc *reset_gpio;
4214 struct btusb_data *data;
4215 struct hci_dev *hdev;
4216 unsigned ifnum_base;
4217 int i, err, priv_size;
4218
4219 BT_DBG("intf %p id %p", intf, id);
4220
4221 if ((id->driver_info & BTUSB_IFNUM_2) &&
4222 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4223 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4224 return -ENODEV;
4225
4226 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4227
4228 if (!id->driver_info) {
4229 const struct usb_device_id *match;
4230
4231 match = usb_match_id(intf, quirks_table);
4232 if (match)
4233 id = match;
4234 }
4235
4236 if (id->driver_info == BTUSB_IGNORE)
4237 return -ENODEV;
4238
4239 if (id->driver_info & BTUSB_ATH3012) {
4240 struct usb_device *udev = interface_to_usbdev(intf);
4241
4242 /* Old firmware would otherwise let ath3k driver load
4243 * patch and sysconfig files
4244 */
4245 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4246 !btusb_qca_need_patch(udev))
4247 return -ENODEV;
4248 }
4249
4250 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4251 if (!data)
4252 return -ENOMEM;
4253
4254 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4255 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4256
4257 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4258 data->intr_ep = ep_desc;
4259 continue;
4260 }
4261
4262 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4263 data->bulk_tx_ep = ep_desc;
4264 continue;
4265 }
4266
4267 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4268 data->bulk_rx_ep = ep_desc;
4269 continue;
4270 }
4271 }
4272
4273 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4274 return -ENODEV;
4275
4276 if (id->driver_info & BTUSB_AMP) {
4277 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4278 data->cmdreq = 0x2b;
4279 } else {
4280 data->cmdreq_type = USB_TYPE_CLASS;
4281 data->cmdreq = 0x00;
4282 }
4283
4284 data->udev = interface_to_usbdev(intf);
4285 data->intf = intf;
4286
4287 INIT_WORK(&data->work, btusb_work);
4288 INIT_WORK(&data->waker, btusb_waker);
4289 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4290
4291 skb_queue_head_init(&data->acl_q);
4292
4293 init_usb_anchor(&data->deferred);
4294 init_usb_anchor(&data->tx_anchor);
4295 spin_lock_init(&data->txlock);
4296
4297 init_usb_anchor(&data->intr_anchor);
4298 init_usb_anchor(&data->bulk_anchor);
4299 init_usb_anchor(&data->isoc_anchor);
4300 init_usb_anchor(&data->diag_anchor);
4301 init_usb_anchor(&data->ctrl_anchor);
4302 spin_lock_init(&data->rxlock);
4303
4304 priv_size = 0;
4305
4306 data->recv_event = hci_recv_frame;
4307 data->recv_bulk = btusb_recv_bulk;
4308
4309 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4310 /* Allocate extra space for Intel device */
4311 priv_size += sizeof(struct btintel_data);
4312
4313 /* Override the rx handlers */
4314 data->recv_event = btintel_recv_event;
4315 data->recv_bulk = btusb_recv_bulk_intel;
4316 } else if (id->driver_info & BTUSB_REALTEK) {
4317 /* Allocate extra space for Realtek device */
4318 priv_size += sizeof(struct btrealtek_data);
4319
4320 data->recv_event = btusb_recv_event_realtek;
4321 } else if (id->driver_info & BTUSB_MEDIATEK) {
4322 /* Allocate extra space for Mediatek device */
4323 priv_size += sizeof(struct btmediatek_data);
4324 }
4325
4326 data->recv_acl = hci_recv_frame;
4327
4328 hdev = hci_alloc_dev_priv(priv_size);
4329 if (!hdev)
4330 return -ENOMEM;
4331
4332 hdev->bus = HCI_USB;
4333 hci_set_drvdata(hdev, data);
4334
4335 if (id->driver_info & BTUSB_AMP)
4336 hdev->dev_type = HCI_AMP;
4337 else
4338 hdev->dev_type = HCI_PRIMARY;
4339
4340 data->hdev = hdev;
4341
4342 SET_HCIDEV_DEV(hdev, &intf->dev);
4343
4344 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4345 GPIOD_OUT_LOW);
4346 if (IS_ERR(reset_gpio)) {
4347 err = PTR_ERR(reset_gpio);
4348 goto out_free_dev;
4349 } else if (reset_gpio) {
4350 data->reset_gpio = reset_gpio;
4351 }
4352
4353 hdev->open = btusb_open;
4354 hdev->close = btusb_close;
4355 hdev->flush = btusb_flush;
4356 hdev->send = btusb_send_frame;
4357 hdev->notify = btusb_notify;
4358 hdev->wakeup = btusb_wakeup;
4359
4360 #ifdef CONFIG_PM
4361 err = btusb_config_oob_wake(hdev);
4362 if (err)
4363 goto out_free_dev;
4364
4365 /* Marvell devices may need a specific chip configuration */
4366 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4367 err = marvell_config_oob_wake(hdev);
4368 if (err)
4369 goto out_free_dev;
4370 }
4371 #endif
4372 if (id->driver_info & BTUSB_CW6622)
4373 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4374
4375 if (id->driver_info & BTUSB_BCM2045)
4376 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4377
4378 if (id->driver_info & BTUSB_BCM92035)
4379 hdev->setup = btusb_setup_bcm92035;
4380
4381 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4382 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4383 hdev->manufacturer = 15;
4384 hdev->setup = btbcm_setup_patchram;
4385 hdev->set_diag = btusb_bcm_set_diag;
4386 hdev->set_bdaddr = btbcm_set_bdaddr;
4387
4388 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4389 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4390 }
4391
4392 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4393 (id->driver_info & BTUSB_BCM_APPLE)) {
4394 hdev->manufacturer = 15;
4395 hdev->setup = btbcm_setup_apple;
4396 hdev->set_diag = btusb_bcm_set_diag;
4397
4398 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4399 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4400 }
4401
4402 /* Combined Intel Device setup to support multiple setup routine */
4403 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4404 err = btintel_configure_setup(hdev, btusb_driver.name);
4405 if (err)
4406 goto out_free_dev;
4407
4408 /* Transport specific configuration */
4409 hdev->send = btusb_send_frame_intel;
4410 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4411
4412 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4413 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4414
4415 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4416 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4417
4418 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4419 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4420 }
4421
4422 if (id->driver_info & BTUSB_MARVELL)
4423 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4424
4425 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4426 (id->driver_info & BTUSB_MEDIATEK)) {
4427 hdev->setup = btusb_mtk_setup;
4428 hdev->shutdown = btusb_mtk_shutdown;
4429 hdev->manufacturer = 70;
4430 hdev->cmd_timeout = btmtk_reset_sync;
4431 hdev->set_bdaddr = btmtk_set_bdaddr;
4432 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4433 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4434 data->recv_acl = btusb_recv_acl_mtk;
4435 }
4436
4437 if (id->driver_info & BTUSB_SWAVE) {
4438 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4439 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4440 }
4441
4442 if (id->driver_info & BTUSB_INTEL_BOOT) {
4443 hdev->manufacturer = 2;
4444 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4445 }
4446
4447 if (id->driver_info & BTUSB_ATH3012) {
4448 data->setup_on_usb = btusb_setup_qca;
4449 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4450 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4451 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4452 }
4453
4454 if (id->driver_info & BTUSB_QCA_ROME) {
4455 data->setup_on_usb = btusb_setup_qca;
4456 hdev->shutdown = btusb_shutdown_qca;
4457 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4458 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4459 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4460 btusb_check_needs_reset_resume(intf);
4461 }
4462
4463 if (id->driver_info & BTUSB_QCA_WCN6855) {
4464 data->qca_dump.id_vendor = id->idVendor;
4465 data->qca_dump.id_product = id->idProduct;
4466 data->recv_event = btusb_recv_evt_qca;
4467 data->recv_acl = btusb_recv_acl_qca;
4468 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4469 data->setup_on_usb = btusb_setup_qca;
4470 hdev->shutdown = btusb_shutdown_qca;
4471 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4472 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4473 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4474 hci_set_msft_opcode(hdev, 0xFD70);
4475 }
4476
4477 if (id->driver_info & BTUSB_AMP) {
4478 /* AMP controllers do not support SCO packets */
4479 data->isoc = NULL;
4480 } else {
4481 /* Interface orders are hardcoded in the specification */
4482 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4483 data->isoc_ifnum = ifnum_base + 1;
4484 }
4485
4486 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4487 (id->driver_info & BTUSB_REALTEK)) {
4488 btrtl_set_driver_name(hdev, btusb_driver.name);
4489 hdev->setup = btusb_setup_realtek;
4490 hdev->shutdown = btrtl_shutdown_realtek;
4491 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4492 hdev->hw_error = btusb_rtl_hw_error;
4493
4494 /* Realtek devices need to set remote wakeup on auto-suspend */
4495 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4496 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4497 }
4498
4499 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4500 /* Support is advertised, but not implemented */
4501 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4502 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4503 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4504 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4505 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
4506 }
4507
4508 if (!reset)
4509 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4510
4511 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4512 if (!disable_scofix)
4513 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4514 }
4515
4516 if (id->driver_info & BTUSB_BROKEN_ISOC)
4517 data->isoc = NULL;
4518
4519 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4520 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4521
4522 if (id->driver_info & BTUSB_VALID_LE_STATES)
4523 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4524
4525 if (id->driver_info & BTUSB_DIGIANSWER) {
4526 data->cmdreq_type = USB_TYPE_VENDOR;
4527 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4528 }
4529
4530 if (id->driver_info & BTUSB_CSR) {
4531 struct usb_device *udev = data->udev;
4532 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4533
4534 /* Old firmware would otherwise execute USB reset */
4535 if (bcdDevice < 0x117)
4536 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4537
4538 /* This must be set first in case we disable it for fakes */
4539 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4540
4541 /* Fake CSR devices with broken commands */
4542 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4543 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4544 hdev->setup = btusb_setup_csr;
4545 }
4546
4547 if (id->driver_info & BTUSB_SNIFFER) {
4548 struct usb_device *udev = data->udev;
4549
4550 /* New sniffer firmware has crippled HCI interface */
4551 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4552 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4553 }
4554
4555 if (id->driver_info & BTUSB_INTEL_BOOT) {
4556 /* A bug in the bootloader causes that interrupt interface is
4557 * only enabled after receiving SetInterface(0, AltSetting=0).
4558 */
4559 err = usb_set_interface(data->udev, 0, 0);
4560 if (err < 0) {
4561 BT_ERR("failed to set interface 0, alt 0 %d", err);
4562 goto out_free_dev;
4563 }
4564 }
4565
4566 if (data->isoc) {
4567 err = usb_driver_claim_interface(&btusb_driver,
4568 data->isoc, data);
4569 if (err < 0)
4570 goto out_free_dev;
4571 }
4572
4573 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4574 if (!usb_driver_claim_interface(&btusb_driver,
4575 data->diag, data))
4576 __set_diag_interface(hdev);
4577 else
4578 data->diag = NULL;
4579 }
4580
4581 if (enable_autosuspend)
4582 usb_enable_autosuspend(data->udev);
4583
4584 data->poll_sync = enable_poll_sync;
4585
4586 err = hci_register_dev(hdev);
4587 if (err < 0)
4588 goto out_free_dev;
4589
4590 usb_set_intfdata(intf, data);
4591
4592 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4593 &force_poll_sync_fops);
4594
4595 return 0;
4596
4597 out_free_dev:
4598 if (data->reset_gpio)
4599 gpiod_put(data->reset_gpio);
4600 hci_free_dev(hdev);
4601 return err;
4602 }
4603
4604 static void btusb_disconnect(struct usb_interface *intf)
4605 {
4606 struct btusb_data *data = usb_get_intfdata(intf);
4607 struct hci_dev *hdev;
4608
4609 BT_DBG("intf %p", intf);
4610
4611 if (!data)
4612 return;
4613
4614 hdev = data->hdev;
4615 usb_set_intfdata(data->intf, NULL);
4616
4617 if (data->isoc)
4618 usb_set_intfdata(data->isoc, NULL);
4619
4620 if (data->diag)
4621 usb_set_intfdata(data->diag, NULL);
4622
4623 hci_unregister_dev(hdev);
4624
4625 if (intf == data->intf) {
4626 if (data->isoc)
4627 usb_driver_release_interface(&btusb_driver, data->isoc);
4628 if (data->diag)
4629 usb_driver_release_interface(&btusb_driver, data->diag);
4630 } else if (intf == data->isoc) {
4631 if (data->diag)
4632 usb_driver_release_interface(&btusb_driver, data->diag);
4633 usb_driver_release_interface(&btusb_driver, data->intf);
4634 } else if (intf == data->diag) {
4635 usb_driver_release_interface(&btusb_driver, data->intf);
4636 if (data->isoc)
4637 usb_driver_release_interface(&btusb_driver, data->isoc);
4638 }
4639
4640 if (data->oob_wake_irq)
4641 device_init_wakeup(&data->udev->dev, false);
4642
4643 if (data->reset_gpio)
4644 gpiod_put(data->reset_gpio);
4645
4646 hci_free_dev(hdev);
4647 }
4648
4649 #ifdef CONFIG_PM
4650 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4651 {
4652 struct btusb_data *data = usb_get_intfdata(intf);
4653
4654 BT_DBG("intf %p", intf);
4655
4656 /* Don't suspend if there are connections */
4657 if (hci_conn_count(data->hdev))
4658 return -EBUSY;
4659
4660 if (data->suspend_count++)
4661 return 0;
4662
4663 spin_lock_irq(&data->txlock);
4664 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4665 set_bit(BTUSB_SUSPENDING, &data->flags);
4666 spin_unlock_irq(&data->txlock);
4667 } else {
4668 spin_unlock_irq(&data->txlock);
4669 data->suspend_count--;
4670 return -EBUSY;
4671 }
4672
4673 cancel_work_sync(&data->work);
4674
4675 btusb_stop_traffic(data);
4676 usb_kill_anchored_urbs(&data->tx_anchor);
4677
4678 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4679 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4680 enable_irq_wake(data->oob_wake_irq);
4681 enable_irq(data->oob_wake_irq);
4682 }
4683
4684 /* For global suspend, Realtek devices lose the loaded fw
4685 * in them. But for autosuspend, firmware should remain.
4686 * Actually, it depends on whether the usb host sends
4687 * set feature (enable wakeup) or not.
4688 */
4689 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4690 if (PMSG_IS_AUTO(message) &&
4691 device_can_wakeup(&data->udev->dev))
4692 data->udev->do_remote_wakeup = 1;
4693 else if (!PMSG_IS_AUTO(message) &&
4694 !device_may_wakeup(&data->udev->dev)) {
4695 data->udev->do_remote_wakeup = 0;
4696 data->udev->reset_resume = 1;
4697 }
4698 }
4699
4700 return 0;
4701 }
4702
4703 static void play_deferred(struct btusb_data *data)
4704 {
4705 struct urb *urb;
4706 int err;
4707
4708 while ((urb = usb_get_from_anchor(&data->deferred))) {
4709 usb_anchor_urb(urb, &data->tx_anchor);
4710
4711 err = usb_submit_urb(urb, GFP_ATOMIC);
4712 if (err < 0) {
4713 if (err != -EPERM && err != -ENODEV)
4714 BT_ERR("%s urb %p submission failed (%d)",
4715 data->hdev->name, urb, -err);
4716 kfree(urb->setup_packet);
4717 usb_unanchor_urb(urb);
4718 usb_free_urb(urb);
4719 break;
4720 }
4721
4722 data->tx_in_flight++;
4723 usb_free_urb(urb);
4724 }
4725
4726 /* Cleanup the rest deferred urbs. */
4727 while ((urb = usb_get_from_anchor(&data->deferred))) {
4728 kfree(urb->setup_packet);
4729 usb_free_urb(urb);
4730 }
4731 }
4732
4733 static int btusb_resume(struct usb_interface *intf)
4734 {
4735 struct btusb_data *data = usb_get_intfdata(intf);
4736 struct hci_dev *hdev = data->hdev;
4737 int err = 0;
4738
4739 BT_DBG("intf %p", intf);
4740
4741 if (--data->suspend_count)
4742 return 0;
4743
4744 /* Disable only if not already disabled (keep it balanced) */
4745 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4746 disable_irq(data->oob_wake_irq);
4747 disable_irq_wake(data->oob_wake_irq);
4748 }
4749
4750 if (!test_bit(HCI_RUNNING, &hdev->flags))
4751 goto done;
4752
4753 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4754 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4755 if (err < 0) {
4756 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4757 goto failed;
4758 }
4759 }
4760
4761 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4762 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4763 if (err < 0) {
4764 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4765 goto failed;
4766 }
4767
4768 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4769 }
4770
4771 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4772 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4773 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4774 else
4775 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4776 }
4777
4778 spin_lock_irq(&data->txlock);
4779 play_deferred(data);
4780 clear_bit(BTUSB_SUSPENDING, &data->flags);
4781 spin_unlock_irq(&data->txlock);
4782 schedule_work(&data->work);
4783
4784 return 0;
4785
4786 failed:
4787 usb_scuttle_anchored_urbs(&data->deferred);
4788 done:
4789 spin_lock_irq(&data->txlock);
4790 clear_bit(BTUSB_SUSPENDING, &data->flags);
4791 spin_unlock_irq(&data->txlock);
4792
4793 return err;
4794 }
4795 #endif
4796
4797 #ifdef CONFIG_DEV_COREDUMP
4798 static void btusb_coredump(struct device *dev)
4799 {
4800 struct btusb_data *data = dev_get_drvdata(dev);
4801 struct hci_dev *hdev = data->hdev;
4802
4803 if (hdev->dump.coredump)
4804 hdev->dump.coredump(hdev);
4805 }
4806 #endif
4807
4808 static struct usb_driver btusb_driver = {
4809 .name = "btusb",
4810 .probe = btusb_probe,
4811 .disconnect = btusb_disconnect,
4812 #ifdef CONFIG_PM
4813 .suspend = btusb_suspend,
4814 .resume = btusb_resume,
4815 #endif
4816 .id_table = btusb_table,
4817 .supports_autosuspend = 1,
4818 .disable_hub_initiated_lpm = 1,
4819
4820 #ifdef CONFIG_DEV_COREDUMP
4821 .driver = {
4822 .coredump = btusb_coredump,
4823 },
4824 #endif
4825 };
4826
4827 module_usb_driver(btusb_driver);
4828
4829 module_param(disable_scofix, bool, 0644);
4830 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4831
4832 module_param(force_scofix, bool, 0644);
4833 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4834
4835 module_param(enable_autosuspend, bool, 0644);
4836 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4837
4838 module_param(reset, bool, 0644);
4839 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4840
4841 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4842 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4843 MODULE_VERSION(VERSION);
4844 MODULE_LICENSE("GPL");
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