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