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
675 /* MediaTek MT7922 Bluetooth devices */
676 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
677 BTUSB_WIDEBAND_SPEECH },
678 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
679 BTUSB_WIDEBAND_SPEECH },
680
681 /* MediaTek MT7922A Bluetooth devices */
682 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
683 BTUSB_WIDEBAND_SPEECH },
684 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
687 BTUSB_WIDEBAND_SPEECH },
688 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
689 BTUSB_WIDEBAND_SPEECH },
690 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
691 BTUSB_WIDEBAND_SPEECH },
692 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
693 BTUSB_WIDEBAND_SPEECH },
694 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
695 BTUSB_WIDEBAND_SPEECH },
696 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
697 BTUSB_WIDEBAND_SPEECH },
698 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
699 BTUSB_WIDEBAND_SPEECH },
700 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK |
701 BTUSB_WIDEBAND_SPEECH },
702 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK |
703 BTUSB_WIDEBAND_SPEECH },
704 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK |
705 BTUSB_WIDEBAND_SPEECH },
706 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
707 BTUSB_WIDEBAND_SPEECH },
708 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
709 BTUSB_WIDEBAND_SPEECH },
710 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
711 BTUSB_WIDEBAND_SPEECH },
712 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK |
713 BTUSB_WIDEBAND_SPEECH },
714 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
725 BTUSB_WIDEBAND_SPEECH },
726
727 /* Additional MediaTek MT7925 Bluetooth devices */
728 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
753 BTUSB_WIDEBAND_SPEECH },
754 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
755 BTUSB_WIDEBAND_SPEECH },
756 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK |
757 BTUSB_WIDEBAND_SPEECH },
758 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK |
759 BTUSB_WIDEBAND_SPEECH },
760 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
761 BTUSB_WIDEBAND_SPEECH },
762 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK |
763 BTUSB_WIDEBAND_SPEECH },
764 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK |
765 BTUSB_WIDEBAND_SPEECH },
766
767 /* Additional Realtek 8723AE Bluetooth devices */
768 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
769 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
770
771 /* Additional Realtek 8723BE Bluetooth devices */
772 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
773 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
774 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
775 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
776 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
777 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
778 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
779
780 /* Additional Realtek 8723BU Bluetooth devices */
781 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
782 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK },
783
784 /* Additional Realtek 8723DE Bluetooth devices */
785 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
786 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
787
788 /* Additional Realtek 8761BUV Bluetooth devices */
789 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
790 BTUSB_WIDEBAND_SPEECH },
791 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
792 BTUSB_WIDEBAND_SPEECH },
793 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
794 BTUSB_WIDEBAND_SPEECH },
795 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
796 BTUSB_WIDEBAND_SPEECH },
797 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
798 BTUSB_WIDEBAND_SPEECH },
799 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
800 BTUSB_WIDEBAND_SPEECH },
801 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
802 BTUSB_WIDEBAND_SPEECH },
803 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK |
804 BTUSB_WIDEBAND_SPEECH },
805
806 /* Additional Realtek 8821AE Bluetooth devices */
807 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
808 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
809 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
810 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
811 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
812
813 /* Additional Realtek 8822BE Bluetooth devices */
814 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
815 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
816
817 /* Additional Realtek 8822CE Bluetooth devices */
818 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
819 BTUSB_WIDEBAND_SPEECH },
820 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
821 BTUSB_WIDEBAND_SPEECH },
822 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
823 BTUSB_WIDEBAND_SPEECH },
824 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
825 BTUSB_WIDEBAND_SPEECH },
826 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
827 BTUSB_WIDEBAND_SPEECH },
828 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
829 BTUSB_WIDEBAND_SPEECH },
830 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
831 BTUSB_WIDEBAND_SPEECH },
832 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
833 BTUSB_WIDEBAND_SPEECH },
834 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
835 BTUSB_WIDEBAND_SPEECH },
836 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
837 BTUSB_WIDEBAND_SPEECH },
838 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
839 BTUSB_WIDEBAND_SPEECH },
840
841 /* Barrot Technology Bluetooth devices */
842 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT },
843 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT },
844
845 /* Actions Semiconductor ATS2851 based devices */
846 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
847
848 /* Silicon Wave based devices */
849 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
850
851 { } /* Terminating entry */
852 };
853
854 /* The Bluetooth USB module build into some devices needs to be reset on resume,
855 * this is a problem with the platform (likely shutting off all power) not with
856 * the module itself. So we use a DMI list to match known broken platforms.
857 */
858 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
859 {
860 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
861 .matches = {
862 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
863 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
864 },
865 },
866 {
867 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
868 .matches = {
869 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
870 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
871 },
872 },
873 {
874 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
875 .matches = {
876 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
877 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
878 },
879 },
880 {}
881 };
882
883 struct qca_dump_info {
884 /* fields for dump collection */
885 u16 id_vendor;
886 u16 id_product;
887 u32 fw_version;
888 u32 controller_id;
889 u32 ram_dump_size;
890 u16 ram_dump_seqno;
891 };
892
893 #define BTUSB_MAX_ISOC_FRAMES 10
894
895 #define BTUSB_INTR_RUNNING 0
896 #define BTUSB_BULK_RUNNING 1
897 #define BTUSB_ISOC_RUNNING 2
898 #define BTUSB_SUSPENDING 3
899 #define BTUSB_DID_ISO_RESUME 4
900 #define BTUSB_BOOTLOADER 5
901 #define BTUSB_DOWNLOADING 6
902 #define BTUSB_FIRMWARE_LOADED 7
903 #define BTUSB_FIRMWARE_FAILED 8
904 #define BTUSB_BOOTING 9
905 #define BTUSB_DIAG_RUNNING 10
906 #define BTUSB_OOB_WAKE_ENABLED 11
907 #define BTUSB_HW_RESET_ACTIVE 12
908 #define BTUSB_TX_WAIT_VND_EVT 13
909 #define BTUSB_WAKEUP_AUTOSUSPEND 14
910 #define BTUSB_USE_ALT3_FOR_WBS 15
911 #define BTUSB_ALT6_CONTINUOUS_TX 16
912 #define BTUSB_HW_SSR_ACTIVE 17
913
914 struct btusb_data {
915 struct hci_dev *hdev;
916 struct usb_device *udev;
917 struct usb_interface *intf;
918 struct usb_interface *isoc;
919 struct usb_interface *diag;
920 unsigned isoc_ifnum;
921
922 unsigned long flags;
923
924 bool poll_sync;
925 int intr_interval;
926 struct work_struct work;
927 struct work_struct waker;
928 struct delayed_work rx_work;
929
930 struct sk_buff_head acl_q;
931
932 struct usb_anchor deferred;
933 struct usb_anchor tx_anchor;
934 int tx_in_flight;
935 spinlock_t txlock;
936
937 struct usb_anchor intr_anchor;
938 struct usb_anchor bulk_anchor;
939 struct usb_anchor isoc_anchor;
940 struct usb_anchor diag_anchor;
941 struct usb_anchor ctrl_anchor;
942 spinlock_t rxlock;
943
944 struct sk_buff *evt_skb;
945 struct sk_buff *acl_skb;
946 struct sk_buff *sco_skb;
947
948 struct usb_endpoint_descriptor *intr_ep;
949 struct usb_endpoint_descriptor *bulk_tx_ep;
950 struct usb_endpoint_descriptor *bulk_rx_ep;
951 struct usb_endpoint_descriptor *isoc_tx_ep;
952 struct usb_endpoint_descriptor *isoc_rx_ep;
953 struct usb_endpoint_descriptor *diag_tx_ep;
954 struct usb_endpoint_descriptor *diag_rx_ep;
955
956 struct gpio_desc *reset_gpio;
957
958 __u8 cmdreq_type;
959 __u8 cmdreq;
960
961 unsigned int sco_num;
962 unsigned int air_mode;
963 bool usb_alt6_packet_flow;
964 int isoc_altsetting;
965 int suspend_count;
966
967 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
968 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
969 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
970
971 int (*setup_on_usb)(struct hci_dev *hdev);
972
973 int (*suspend)(struct hci_dev *hdev);
974 int (*resume)(struct hci_dev *hdev);
975 int (*disconnect)(struct hci_dev *hdev);
976
977 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
978
979 struct qca_dump_info qca_dump;
980 };
981
btusb_reset(struct hci_dev * hdev)982 static void btusb_reset(struct hci_dev *hdev)
983 {
984 struct btusb_data *data;
985 int err;
986
987 data = hci_get_drvdata(hdev);
988 /* This is not an unbalanced PM reference since the device will reset */
989 err = usb_autopm_get_interface(data->intf);
990 if (err) {
991 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
992 return;
993 }
994
995 bt_dev_err(hdev, "Resetting usb device.");
996 usb_queue_reset_device(data->intf);
997 }
998
btusb_intel_reset(struct hci_dev * hdev)999 static void btusb_intel_reset(struct hci_dev *hdev)
1000 {
1001 struct btusb_data *data = hci_get_drvdata(hdev);
1002 struct gpio_desc *reset_gpio = data->reset_gpio;
1003 struct btintel_data *intel_data = hci_get_priv(hdev);
1004
1005 if (intel_data->acpi_reset_method) {
1006 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
1007 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
1008 return;
1009 }
1010
1011 bt_dev_err(hdev, "Initiating acpi reset method");
1012 /* If ACPI reset method fails, lets try with legacy GPIO
1013 * toggling
1014 */
1015 if (!intel_data->acpi_reset_method(hdev)) {
1016 return;
1017 }
1018 }
1019
1020 if (!reset_gpio) {
1021 btusb_reset(hdev);
1022 return;
1023 }
1024
1025 /*
1026 * Toggle the hard reset line if the platform provides one. The reset
1027 * is going to yank the device off the USB and then replug. So doing
1028 * once is enough. The cleanup is handled correctly on the way out
1029 * (standard USB disconnect), and the new device is detected cleanly
1030 * and bound to the driver again like it should be.
1031 */
1032 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1033 bt_dev_err(hdev, "last reset failed? Not resetting again");
1034 return;
1035 }
1036
1037 bt_dev_err(hdev, "Initiating HW reset via gpio");
1038 gpiod_set_value_cansleep(reset_gpio, 1);
1039 msleep(100);
1040 gpiod_set_value_cansleep(reset_gpio, 0);
1041 }
1042
1043 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
1044 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
1045 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
1046
1047 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
1048
1049 struct rtk_dev_coredump_hdr {
1050 u8 type;
1051 u8 code;
1052 u8 reserved[2];
1053 } __packed;
1054
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)1055 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
1056 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
1057 {
1058 struct sk_buff *skb;
1059
1060 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
1061 if (!skb)
1062 return;
1063
1064 skb_put_data(skb, hdr, sizeof(*hdr));
1065 if (len)
1066 skb_put_data(skb, buf, len);
1067
1068 if (!hci_devcd_init(hdev, skb->len)) {
1069 hci_devcd_append(hdev, skb);
1070 hci_devcd_complete(hdev);
1071 } else {
1072 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1073 kfree_skb(skb);
1074 }
1075 }
1076
btusb_rtl_reset(struct hci_dev * hdev)1077 static void btusb_rtl_reset(struct hci_dev *hdev)
1078 {
1079 struct btusb_data *data = hci_get_drvdata(hdev);
1080 struct gpio_desc *reset_gpio = data->reset_gpio;
1081 struct rtk_dev_coredump_hdr hdr = {
1082 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1083 };
1084
1085 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1086
1087 if (!reset_gpio) {
1088 btusb_reset(hdev);
1089 return;
1090 }
1091
1092 /* Toggle the hard reset line. The Realtek device is going to
1093 * yank itself off the USB and then replug. The cleanup is handled
1094 * correctly on the way out (standard USB disconnect), and the new
1095 * device is detected cleanly and bound to the driver again like
1096 * it should be.
1097 */
1098 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1099 bt_dev_err(hdev, "last reset failed? Not resetting again");
1100 return;
1101 }
1102
1103 bt_dev_err(hdev, "Reset Realtek device via gpio");
1104 gpiod_set_value_cansleep(reset_gpio, 1);
1105 msleep(200);
1106 gpiod_set_value_cansleep(reset_gpio, 0);
1107 }
1108
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)1109 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1110 {
1111 struct rtk_dev_coredump_hdr hdr = {
1112 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1113 .code = code,
1114 };
1115
1116 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1117
1118 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1119 }
1120
btusb_qca_reset(struct hci_dev * hdev)1121 static void btusb_qca_reset(struct hci_dev *hdev)
1122 {
1123 struct btusb_data *data = hci_get_drvdata(hdev);
1124 struct gpio_desc *reset_gpio = data->reset_gpio;
1125
1126 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1127 bt_dev_info(hdev, "Ramdump in progress, defer reset");
1128 return;
1129 }
1130
1131 if (reset_gpio) {
1132 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1133
1134 /* Toggle the hard reset line. The qca bt device is going to
1135 * yank itself off the USB and then replug. The cleanup is handled
1136 * correctly on the way out (standard USB disconnect), and the new
1137 * device is detected cleanly and bound to the driver again like
1138 * it should be.
1139 */
1140 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1141 bt_dev_err(hdev, "last reset failed? Not resetting again");
1142 return;
1143 }
1144
1145 gpiod_set_value_cansleep(reset_gpio, 0);
1146 msleep(200);
1147 gpiod_set_value_cansleep(reset_gpio, 1);
1148
1149 return;
1150 }
1151
1152 btusb_reset(hdev);
1153 }
1154
btusb_classify_qca_pkt_type(struct hci_dev * hdev,struct sk_buff * skb)1155 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
1156 {
1157 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug
1158 * packets as ACL frames with connection handle 0x2EDC. These are not real
1159 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent
1160 * "ACL packet for unknown connection handle 3804" errors.
1161 */
1162 if (skb->len >= 2) {
1163 u16 handle = get_unaligned_le16(skb->data);
1164
1165 if (handle == 0x2EDC)
1166 return HCI_DIAG_PKT;
1167 }
1168
1169 /* Use default packet type for other packets */
1170 return hci_skb_pkt_type(skb);
1171 }
1172
btusb_free_frags(struct btusb_data * data)1173 static inline void btusb_free_frags(struct btusb_data *data)
1174 {
1175 unsigned long flags;
1176
1177 spin_lock_irqsave(&data->rxlock, flags);
1178
1179 dev_kfree_skb_irq(data->evt_skb);
1180 data->evt_skb = NULL;
1181
1182 dev_kfree_skb_irq(data->acl_skb);
1183 data->acl_skb = NULL;
1184
1185 dev_kfree_skb_irq(data->sco_skb);
1186 data->sco_skb = NULL;
1187
1188 spin_unlock_irqrestore(&data->rxlock, flags);
1189 }
1190
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1191 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1192 {
1193 if (data->intr_interval) {
1194 /* Trigger dequeue immediately if an event is received */
1195 schedule_delayed_work(&data->rx_work, 0);
1196 }
1197
1198 return data->recv_event(data->hdev, skb);
1199 }
1200
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1201 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1202 {
1203 struct sk_buff *skb;
1204 unsigned long flags;
1205 int err = 0;
1206
1207 spin_lock_irqsave(&data->rxlock, flags);
1208 skb = data->evt_skb;
1209
1210 while (count) {
1211 int len;
1212
1213 if (!skb) {
1214 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1215 if (!skb) {
1216 err = -ENOMEM;
1217 break;
1218 }
1219
1220 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1221 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1222 }
1223
1224 len = min_t(uint, hci_skb_expect(skb), count);
1225 skb_put_data(skb, buffer, len);
1226
1227 count -= len;
1228 buffer += len;
1229 hci_skb_expect(skb) -= len;
1230
1231 if (skb->len == HCI_EVENT_HDR_SIZE) {
1232 /* Complete event header */
1233 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1234
1235 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1236 kfree_skb(skb);
1237 skb = NULL;
1238
1239 err = -EILSEQ;
1240 break;
1241 }
1242 }
1243
1244 if (!hci_skb_expect(skb)) {
1245 /* Each chunk should correspond to at least 1 or more
1246 * events so if there are still bytes left that doesn't
1247 * constitute a new event this is likely a bug in the
1248 * controller.
1249 */
1250 if (count && count < HCI_EVENT_HDR_SIZE) {
1251 bt_dev_warn(data->hdev,
1252 "Unexpected continuation: %d bytes",
1253 count);
1254 count = 0;
1255 }
1256
1257 /* Complete frame */
1258 btusb_recv_event(data, skb);
1259 skb = NULL;
1260 }
1261 }
1262
1263 data->evt_skb = skb;
1264 spin_unlock_irqrestore(&data->rxlock, flags);
1265
1266 return err;
1267 }
1268
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1269 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1270 {
1271 /* Only queue ACL packet if intr_interval is set as it means
1272 * force_poll_sync has been enabled.
1273 */
1274 if (!data->intr_interval)
1275 return data->recv_acl(data->hdev, skb);
1276
1277 skb_queue_tail(&data->acl_q, skb);
1278 schedule_delayed_work(&data->rx_work, data->intr_interval);
1279
1280 return 0;
1281 }
1282
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1283 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1284 {
1285 struct sk_buff *skb;
1286 unsigned long flags;
1287 int err = 0;
1288
1289 spin_lock_irqsave(&data->rxlock, flags);
1290 skb = data->acl_skb;
1291
1292 while (count) {
1293 int len;
1294
1295 if (!skb) {
1296 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1297 if (!skb) {
1298 err = -ENOMEM;
1299 break;
1300 }
1301
1302 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1303 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1304 }
1305
1306 len = min_t(uint, hci_skb_expect(skb), count);
1307 skb_put_data(skb, buffer, len);
1308
1309 count -= len;
1310 buffer += len;
1311 hci_skb_expect(skb) -= len;
1312
1313 if (skb->len == HCI_ACL_HDR_SIZE) {
1314 __le16 dlen = hci_acl_hdr(skb)->dlen;
1315
1316 /* Complete ACL header */
1317 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1318
1319 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1320 kfree_skb(skb);
1321 skb = NULL;
1322
1323 err = -EILSEQ;
1324 break;
1325 }
1326 }
1327
1328 if (!hci_skb_expect(skb)) {
1329 /* Complete frame */
1330 btusb_recv_acl(data, skb);
1331 skb = NULL;
1332 }
1333 }
1334
1335 data->acl_skb = skb;
1336 spin_unlock_irqrestore(&data->rxlock, flags);
1337
1338 return err;
1339 }
1340
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1341 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1342 struct hci_sco_hdr *hdr)
1343 {
1344 __u16 handle;
1345
1346 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1347 // Can't validate, userspace controls everything.
1348 return true;
1349
1350 /*
1351 * USB isochronous transfers are not designed to be reliable and may
1352 * lose fragments. When this happens, the next first fragment
1353 * encountered might actually be a continuation fragment.
1354 * Validate the handle to detect it and drop it, or else the upper
1355 * layer will get garbage for a while.
1356 */
1357
1358 handle = hci_handle(__le16_to_cpu(hdr->handle));
1359
1360 switch (hci_conn_lookup_type(hdev, handle)) {
1361 case SCO_LINK:
1362 case ESCO_LINK:
1363 return true;
1364 default:
1365 return false;
1366 }
1367 }
1368
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1369 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1370 {
1371 struct sk_buff *skb;
1372 unsigned long flags;
1373 int err = 0;
1374
1375 spin_lock_irqsave(&data->rxlock, flags);
1376 skb = data->sco_skb;
1377
1378 while (count) {
1379 int len;
1380
1381 if (!skb) {
1382 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1383 if (!skb) {
1384 err = -ENOMEM;
1385 break;
1386 }
1387
1388 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1389 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1390 }
1391
1392 len = min_t(uint, hci_skb_expect(skb), count);
1393 skb_put_data(skb, buffer, len);
1394
1395 count -= len;
1396 buffer += len;
1397 hci_skb_expect(skb) -= len;
1398
1399 if (skb->len == HCI_SCO_HDR_SIZE) {
1400 /* Complete SCO header */
1401 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1402
1403 hci_skb_expect(skb) = hdr->dlen;
1404
1405 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1406 !btusb_validate_sco_handle(data->hdev, hdr)) {
1407 kfree_skb(skb);
1408 skb = NULL;
1409
1410 err = -EILSEQ;
1411 break;
1412 }
1413 }
1414
1415 if (!hci_skb_expect(skb)) {
1416 /* Complete frame */
1417 hci_recv_frame(data->hdev, skb);
1418 skb = NULL;
1419 }
1420 }
1421
1422 data->sco_skb = skb;
1423 spin_unlock_irqrestore(&data->rxlock, flags);
1424
1425 return err;
1426 }
1427
btusb_intr_complete(struct urb * urb)1428 static void btusb_intr_complete(struct urb *urb)
1429 {
1430 struct hci_dev *hdev = urb->context;
1431 struct btusb_data *data = hci_get_drvdata(hdev);
1432 int err;
1433
1434 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1435 urb->actual_length);
1436
1437 if (!test_bit(HCI_RUNNING, &hdev->flags))
1438 return;
1439
1440 if (urb->status == 0) {
1441 hdev->stat.byte_rx += urb->actual_length;
1442
1443 if (btusb_recv_intr(data, urb->transfer_buffer,
1444 urb->actual_length) < 0) {
1445 bt_dev_err(hdev, "corrupted event packet");
1446 hdev->stat.err_rx++;
1447 }
1448 } else if (urb->status == -ENOENT) {
1449 /* Avoid suspend failed when usb_kill_urb */
1450 return;
1451 }
1452
1453 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1454 return;
1455
1456 usb_mark_last_busy(data->udev);
1457 usb_anchor_urb(urb, &data->intr_anchor);
1458
1459 err = usb_submit_urb(urb, GFP_ATOMIC);
1460 if (err < 0) {
1461 /* -EPERM: urb is being killed;
1462 * -ENODEV: device got disconnected
1463 */
1464 if (err != -EPERM && err != -ENODEV)
1465 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1466 urb, -err);
1467 if (err != -EPERM)
1468 hci_cmd_sync_cancel(hdev, -err);
1469 usb_unanchor_urb(urb);
1470 }
1471 }
1472
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1473 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1474 {
1475 struct btusb_data *data = hci_get_drvdata(hdev);
1476 struct urb *urb;
1477 unsigned char *buf;
1478 unsigned int pipe;
1479 int err, size;
1480
1481 BT_DBG("%s", hdev->name);
1482
1483 if (!data->intr_ep)
1484 return -ENODEV;
1485
1486 urb = usb_alloc_urb(0, mem_flags);
1487 if (!urb)
1488 return -ENOMEM;
1489
1490 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1491 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1492 /* Fake CSR devices don't seem to support sort-transter */
1493 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1494 else
1495 /* Use maximum HCI Event size so the USB stack handles
1496 * ZPL/short-transfer automatically.
1497 */
1498 size = HCI_MAX_EVENT_SIZE;
1499
1500 buf = kmalloc(size, mem_flags);
1501 if (!buf) {
1502 usb_free_urb(urb);
1503 return -ENOMEM;
1504 }
1505
1506 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1507
1508 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1509 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1510
1511 urb->transfer_flags |= URB_FREE_BUFFER;
1512
1513 usb_anchor_urb(urb, &data->intr_anchor);
1514
1515 err = usb_submit_urb(urb, mem_flags);
1516 if (err < 0) {
1517 if (err != -EPERM && err != -ENODEV)
1518 bt_dev_err(hdev, "urb %p submission failed (%d)",
1519 urb, -err);
1520 if (err != -EPERM)
1521 hci_cmd_sync_cancel(hdev, -err);
1522 usb_unanchor_urb(urb);
1523 }
1524
1525 /* Only initialize intr_interval if URB poll sync is enabled */
1526 if (!data->poll_sync)
1527 goto done;
1528
1529 /* The units are frames (milliseconds) for full and low speed devices,
1530 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1531 * devices.
1532 *
1533 * This is done once on open/resume so it shouldn't change even if
1534 * force_poll_sync changes.
1535 */
1536 switch (urb->dev->speed) {
1537 case USB_SPEED_SUPER_PLUS:
1538 case USB_SPEED_SUPER: /* units are 125us */
1539 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1540 break;
1541 default:
1542 data->intr_interval = msecs_to_jiffies(urb->interval);
1543 break;
1544 }
1545
1546 done:
1547 usb_free_urb(urb);
1548
1549 return err;
1550 }
1551
btusb_bulk_complete(struct urb * urb)1552 static void btusb_bulk_complete(struct urb *urb)
1553 {
1554 struct hci_dev *hdev = urb->context;
1555 struct btusb_data *data = hci_get_drvdata(hdev);
1556 int err;
1557
1558 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1559 urb->actual_length);
1560
1561 if (!test_bit(HCI_RUNNING, &hdev->flags))
1562 return;
1563
1564 if (urb->status == 0) {
1565 hdev->stat.byte_rx += urb->actual_length;
1566
1567 if (data->recv_bulk(data, urb->transfer_buffer,
1568 urb->actual_length) < 0) {
1569 bt_dev_err(hdev, "corrupted ACL packet");
1570 hdev->stat.err_rx++;
1571 }
1572 } else if (urb->status == -ENOENT) {
1573 /* Avoid suspend failed when usb_kill_urb */
1574 return;
1575 }
1576
1577 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1578 return;
1579
1580 usb_anchor_urb(urb, &data->bulk_anchor);
1581 usb_mark_last_busy(data->udev);
1582
1583 err = usb_submit_urb(urb, GFP_ATOMIC);
1584 if (err < 0) {
1585 /* -EPERM: urb is being killed;
1586 * -ENODEV: device got disconnected
1587 */
1588 if (err != -EPERM && err != -ENODEV)
1589 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1590 urb, -err);
1591 usb_unanchor_urb(urb);
1592 }
1593 }
1594
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1595 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1596 {
1597 struct btusb_data *data = hci_get_drvdata(hdev);
1598 struct urb *urb;
1599 unsigned char *buf;
1600 unsigned int pipe;
1601 int err, size = HCI_MAX_FRAME_SIZE;
1602
1603 BT_DBG("%s", hdev->name);
1604
1605 if (!data->bulk_rx_ep)
1606 return -ENODEV;
1607
1608 urb = usb_alloc_urb(0, mem_flags);
1609 if (!urb)
1610 return -ENOMEM;
1611
1612 buf = kmalloc(size, mem_flags);
1613 if (!buf) {
1614 usb_free_urb(urb);
1615 return -ENOMEM;
1616 }
1617
1618 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1619
1620 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1621 btusb_bulk_complete, hdev);
1622
1623 urb->transfer_flags |= URB_FREE_BUFFER;
1624
1625 usb_mark_last_busy(data->udev);
1626 usb_anchor_urb(urb, &data->bulk_anchor);
1627
1628 err = usb_submit_urb(urb, mem_flags);
1629 if (err < 0) {
1630 if (err != -EPERM && err != -ENODEV)
1631 bt_dev_err(hdev, "urb %p submission failed (%d)",
1632 urb, -err);
1633 usb_unanchor_urb(urb);
1634 }
1635
1636 usb_free_urb(urb);
1637
1638 return err;
1639 }
1640
btusb_isoc_complete(struct urb * urb)1641 static void btusb_isoc_complete(struct urb *urb)
1642 {
1643 struct hci_dev *hdev = urb->context;
1644 struct btusb_data *data = hci_get_drvdata(hdev);
1645 int i, err;
1646
1647 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1648 urb->actual_length);
1649
1650 if (!test_bit(HCI_RUNNING, &hdev->flags))
1651 return;
1652
1653 if (urb->status == 0) {
1654 for (i = 0; i < urb->number_of_packets; i++) {
1655 unsigned int offset = urb->iso_frame_desc[i].offset;
1656 unsigned int length = urb->iso_frame_desc[i].actual_length;
1657
1658 if (urb->iso_frame_desc[i].status)
1659 continue;
1660
1661 hdev->stat.byte_rx += length;
1662
1663 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1664 length) < 0) {
1665 bt_dev_err(hdev, "corrupted SCO packet");
1666 hdev->stat.err_rx++;
1667 }
1668 }
1669 } else if (urb->status == -ENOENT) {
1670 /* Avoid suspend failed when usb_kill_urb */
1671 return;
1672 }
1673
1674 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1675 return;
1676
1677 usb_anchor_urb(urb, &data->isoc_anchor);
1678
1679 err = usb_submit_urb(urb, GFP_ATOMIC);
1680 if (err < 0) {
1681 /* -EPERM: urb is being killed;
1682 * -ENODEV: device got disconnected
1683 */
1684 if (err != -EPERM && err != -ENODEV)
1685 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1686 urb, -err);
1687 usb_unanchor_urb(urb);
1688 }
1689 }
1690
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1691 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1692 int mtu, struct btusb_data *data)
1693 {
1694 int i = 0, offset = 0;
1695 unsigned int interval;
1696
1697 BT_DBG("len %d mtu %d", len, mtu);
1698
1699 /* For mSBC ALT 6 settings some chips need to transmit the data
1700 * continuously without the zero length of USB packets.
1701 */
1702 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1703 goto ignore_usb_alt6_packet_flow;
1704
1705 /* For mSBC ALT 6 setting the host will send the packet at continuous
1706 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1707 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1708 * To maintain the rate we send 63bytes of usb packets alternatively for
1709 * 7ms and 8ms to maintain the rate as 7.5ms.
1710 */
1711 if (data->usb_alt6_packet_flow) {
1712 interval = 7;
1713 data->usb_alt6_packet_flow = false;
1714 } else {
1715 interval = 6;
1716 data->usb_alt6_packet_flow = true;
1717 }
1718
1719 for (i = 0; i < interval; i++) {
1720 urb->iso_frame_desc[i].offset = offset;
1721 urb->iso_frame_desc[i].length = offset;
1722 }
1723
1724 ignore_usb_alt6_packet_flow:
1725 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1726 urb->iso_frame_desc[i].offset = offset;
1727 urb->iso_frame_desc[i].length = len;
1728 i++;
1729 }
1730
1731 urb->number_of_packets = i;
1732 }
1733
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1734 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1735 {
1736 int i, offset = 0;
1737
1738 BT_DBG("len %d mtu %d", len, mtu);
1739
1740 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1741 i++, offset += mtu, len -= mtu) {
1742 urb->iso_frame_desc[i].offset = offset;
1743 urb->iso_frame_desc[i].length = mtu;
1744 }
1745
1746 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1747 urb->iso_frame_desc[i].offset = offset;
1748 urb->iso_frame_desc[i].length = len;
1749 i++;
1750 }
1751
1752 urb->number_of_packets = i;
1753 }
1754
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1755 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1756 {
1757 struct btusb_data *data = hci_get_drvdata(hdev);
1758 struct urb *urb;
1759 unsigned char *buf;
1760 unsigned int pipe;
1761 int err, size;
1762
1763 BT_DBG("%s", hdev->name);
1764
1765 if (!data->isoc_rx_ep)
1766 return -ENODEV;
1767
1768 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1769 if (!urb)
1770 return -ENOMEM;
1771
1772 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1773 BTUSB_MAX_ISOC_FRAMES;
1774
1775 buf = kmalloc(size, mem_flags);
1776 if (!buf) {
1777 usb_free_urb(urb);
1778 return -ENOMEM;
1779 }
1780
1781 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1782
1783 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1784 hdev, data->isoc_rx_ep->bInterval);
1785
1786 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1787
1788 __fill_isoc_descriptor(urb, size,
1789 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1790
1791 usb_anchor_urb(urb, &data->isoc_anchor);
1792
1793 err = usb_submit_urb(urb, mem_flags);
1794 if (err < 0) {
1795 if (err != -EPERM && err != -ENODEV)
1796 bt_dev_err(hdev, "urb %p submission failed (%d)",
1797 urb, -err);
1798 usb_unanchor_urb(urb);
1799 }
1800
1801 usb_free_urb(urb);
1802
1803 return err;
1804 }
1805
btusb_diag_complete(struct urb * urb)1806 static void btusb_diag_complete(struct urb *urb)
1807 {
1808 struct hci_dev *hdev = urb->context;
1809 struct btusb_data *data = hci_get_drvdata(hdev);
1810 int err;
1811
1812 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1813 urb->actual_length);
1814
1815 if (urb->status == 0) {
1816 struct sk_buff *skb;
1817
1818 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1819 if (skb) {
1820 skb_put_data(skb, urb->transfer_buffer,
1821 urb->actual_length);
1822 hci_recv_diag(hdev, skb);
1823 }
1824 } else if (urb->status == -ENOENT) {
1825 /* Avoid suspend failed when usb_kill_urb */
1826 return;
1827 }
1828
1829 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1830 return;
1831
1832 usb_anchor_urb(urb, &data->diag_anchor);
1833 usb_mark_last_busy(data->udev);
1834
1835 err = usb_submit_urb(urb, GFP_ATOMIC);
1836 if (err < 0) {
1837 /* -EPERM: urb is being killed;
1838 * -ENODEV: device got disconnected
1839 */
1840 if (err != -EPERM && err != -ENODEV)
1841 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1842 urb, -err);
1843 usb_unanchor_urb(urb);
1844 }
1845 }
1846
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1847 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1848 {
1849 struct btusb_data *data = hci_get_drvdata(hdev);
1850 struct urb *urb;
1851 unsigned char *buf;
1852 unsigned int pipe;
1853 int err, size = HCI_MAX_FRAME_SIZE;
1854
1855 BT_DBG("%s", hdev->name);
1856
1857 if (!data->diag_rx_ep)
1858 return -ENODEV;
1859
1860 urb = usb_alloc_urb(0, mem_flags);
1861 if (!urb)
1862 return -ENOMEM;
1863
1864 buf = kmalloc(size, mem_flags);
1865 if (!buf) {
1866 usb_free_urb(urb);
1867 return -ENOMEM;
1868 }
1869
1870 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1871
1872 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1873 btusb_diag_complete, hdev);
1874
1875 urb->transfer_flags |= URB_FREE_BUFFER;
1876
1877 usb_mark_last_busy(data->udev);
1878 usb_anchor_urb(urb, &data->diag_anchor);
1879
1880 err = usb_submit_urb(urb, mem_flags);
1881 if (err < 0) {
1882 if (err != -EPERM && err != -ENODEV)
1883 bt_dev_err(hdev, "urb %p submission failed (%d)",
1884 urb, -err);
1885 usb_unanchor_urb(urb);
1886 }
1887
1888 usb_free_urb(urb);
1889
1890 return err;
1891 }
1892
btusb_tx_complete(struct urb * urb)1893 static void btusb_tx_complete(struct urb *urb)
1894 {
1895 struct sk_buff *skb = urb->context;
1896 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1897 struct btusb_data *data = hci_get_drvdata(hdev);
1898 unsigned long flags;
1899
1900 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1901 urb->actual_length);
1902
1903 if (!test_bit(HCI_RUNNING, &hdev->flags))
1904 goto done;
1905
1906 if (!urb->status) {
1907 hdev->stat.byte_tx += urb->transfer_buffer_length;
1908 } else {
1909 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1910 hci_cmd_sync_cancel(hdev, -urb->status);
1911 hdev->stat.err_tx++;
1912 }
1913
1914 done:
1915 spin_lock_irqsave(&data->txlock, flags);
1916 data->tx_in_flight--;
1917 spin_unlock_irqrestore(&data->txlock, flags);
1918
1919 kfree(urb->setup_packet);
1920
1921 kfree_skb(skb);
1922 }
1923
btusb_isoc_tx_complete(struct urb * urb)1924 static void btusb_isoc_tx_complete(struct urb *urb)
1925 {
1926 struct sk_buff *skb = urb->context;
1927 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1928
1929 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1930 urb->actual_length);
1931
1932 if (!test_bit(HCI_RUNNING, &hdev->flags))
1933 goto done;
1934
1935 if (!urb->status)
1936 hdev->stat.byte_tx += urb->transfer_buffer_length;
1937 else
1938 hdev->stat.err_tx++;
1939
1940 done:
1941 kfree(urb->setup_packet);
1942
1943 kfree_skb(skb);
1944 }
1945
btusb_open(struct hci_dev * hdev)1946 static int btusb_open(struct hci_dev *hdev)
1947 {
1948 struct btusb_data *data = hci_get_drvdata(hdev);
1949 int err;
1950
1951 BT_DBG("%s", hdev->name);
1952
1953 err = usb_autopm_get_interface(data->intf);
1954 if (err < 0)
1955 return err;
1956
1957 /* Patching USB firmware files prior to starting any URBs of HCI path
1958 * It is more safe to use USB bulk channel for downloading USB patch
1959 */
1960 if (data->setup_on_usb) {
1961 err = data->setup_on_usb(hdev);
1962 if (err < 0)
1963 goto setup_fail;
1964 }
1965
1966 data->intf->needs_remote_wakeup = 1;
1967
1968 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1969 goto done;
1970
1971 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1972 if (err < 0)
1973 goto failed;
1974
1975 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1976 if (err < 0) {
1977 usb_kill_anchored_urbs(&data->intr_anchor);
1978 goto failed;
1979 }
1980
1981 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1982 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1983
1984 if (data->diag) {
1985 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1986 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1987 }
1988
1989 done:
1990 usb_autopm_put_interface(data->intf);
1991 return 0;
1992
1993 failed:
1994 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1995 setup_fail:
1996 usb_autopm_put_interface(data->intf);
1997 return err;
1998 }
1999
btusb_stop_traffic(struct btusb_data * data)2000 static void btusb_stop_traffic(struct btusb_data *data)
2001 {
2002 usb_kill_anchored_urbs(&data->intr_anchor);
2003 usb_kill_anchored_urbs(&data->bulk_anchor);
2004 usb_kill_anchored_urbs(&data->isoc_anchor);
2005 usb_kill_anchored_urbs(&data->diag_anchor);
2006 usb_kill_anchored_urbs(&data->ctrl_anchor);
2007 }
2008
btusb_close(struct hci_dev * hdev)2009 static int btusb_close(struct hci_dev *hdev)
2010 {
2011 struct btusb_data *data = hci_get_drvdata(hdev);
2012 int err;
2013
2014 BT_DBG("%s", hdev->name);
2015
2016 cancel_delayed_work(&data->rx_work);
2017 cancel_work_sync(&data->work);
2018 cancel_work_sync(&data->waker);
2019
2020 skb_queue_purge(&data->acl_q);
2021
2022 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2023 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2024 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2025 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
2026
2027 btusb_stop_traffic(data);
2028 btusb_free_frags(data);
2029
2030 err = usb_autopm_get_interface(data->intf);
2031 if (err < 0)
2032 goto failed;
2033
2034 data->intf->needs_remote_wakeup = 0;
2035
2036 /* Enable remote wake up for auto-suspend */
2037 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
2038 data->intf->needs_remote_wakeup = 1;
2039
2040 usb_autopm_put_interface(data->intf);
2041
2042 failed:
2043 usb_scuttle_anchored_urbs(&data->deferred);
2044 return 0;
2045 }
2046
btusb_flush(struct hci_dev * hdev)2047 static int btusb_flush(struct hci_dev *hdev)
2048 {
2049 struct btusb_data *data = hci_get_drvdata(hdev);
2050
2051 BT_DBG("%s", hdev->name);
2052
2053 cancel_delayed_work(&data->rx_work);
2054
2055 skb_queue_purge(&data->acl_q);
2056
2057 usb_kill_anchored_urbs(&data->tx_anchor);
2058 btusb_free_frags(data);
2059
2060 return 0;
2061 }
2062
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)2063 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
2064 {
2065 struct btusb_data *data = hci_get_drvdata(hdev);
2066 struct usb_ctrlrequest *dr;
2067 struct urb *urb;
2068 unsigned int pipe;
2069
2070 urb = usb_alloc_urb(0, GFP_KERNEL);
2071 if (!urb)
2072 return ERR_PTR(-ENOMEM);
2073
2074 dr = kmalloc_obj(*dr);
2075 if (!dr) {
2076 usb_free_urb(urb);
2077 return ERR_PTR(-ENOMEM);
2078 }
2079
2080 dr->bRequestType = data->cmdreq_type;
2081 dr->bRequest = data->cmdreq;
2082 dr->wIndex = 0;
2083 dr->wValue = 0;
2084 dr->wLength = __cpu_to_le16(skb->len);
2085
2086 pipe = usb_sndctrlpipe(data->udev, 0x00);
2087
2088 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2089 skb->data, skb->len, btusb_tx_complete, skb);
2090
2091 skb->dev = (void *)hdev;
2092
2093 return urb;
2094 }
2095
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)2096 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2097 {
2098 struct btusb_data *data = hci_get_drvdata(hdev);
2099 struct urb *urb;
2100 unsigned int pipe;
2101
2102 if (!data->bulk_tx_ep)
2103 return ERR_PTR(-ENODEV);
2104
2105 urb = usb_alloc_urb(0, GFP_KERNEL);
2106 if (!urb)
2107 return ERR_PTR(-ENOMEM);
2108
2109 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2110
2111 usb_fill_bulk_urb(urb, data->udev, pipe,
2112 skb->data, skb->len, btusb_tx_complete, skb);
2113
2114 skb->dev = (void *)hdev;
2115
2116 return urb;
2117 }
2118
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)2119 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2120 {
2121 struct btusb_data *data = hci_get_drvdata(hdev);
2122 struct urb *urb;
2123 unsigned int pipe;
2124
2125 if (!data->isoc_tx_ep)
2126 return ERR_PTR(-ENODEV);
2127
2128 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2129 if (!urb)
2130 return ERR_PTR(-ENOMEM);
2131
2132 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2133
2134 usb_fill_int_urb(urb, data->udev, pipe,
2135 skb->data, skb->len, btusb_isoc_tx_complete,
2136 skb, data->isoc_tx_ep->bInterval);
2137
2138 urb->transfer_flags = URB_ISO_ASAP;
2139
2140 if (data->isoc_altsetting == 6)
2141 __fill_isoc_descriptor_msbc(urb, skb->len,
2142 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2143 data);
2144 else
2145 __fill_isoc_descriptor(urb, skb->len,
2146 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2147 skb->dev = (void *)hdev;
2148
2149 return urb;
2150 }
2151
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2152 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2153 {
2154 struct btusb_data *data = hci_get_drvdata(hdev);
2155 int err;
2156
2157 usb_anchor_urb(urb, &data->tx_anchor);
2158
2159 err = usb_submit_urb(urb, GFP_KERNEL);
2160 if (err < 0) {
2161 if (err != -EPERM && err != -ENODEV)
2162 bt_dev_err(hdev, "urb %p submission failed (%d)",
2163 urb, -err);
2164 kfree(urb->setup_packet);
2165 usb_unanchor_urb(urb);
2166 } else {
2167 usb_mark_last_busy(data->udev);
2168 }
2169
2170 usb_free_urb(urb);
2171 return err;
2172 }
2173
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2174 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2175 {
2176 struct btusb_data *data = hci_get_drvdata(hdev);
2177 unsigned long flags;
2178 bool suspending;
2179
2180 spin_lock_irqsave(&data->txlock, flags);
2181 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2182 if (!suspending)
2183 data->tx_in_flight++;
2184 spin_unlock_irqrestore(&data->txlock, flags);
2185
2186 if (!suspending)
2187 return submit_tx_urb(hdev, urb);
2188
2189 usb_anchor_urb(urb, &data->deferred);
2190 schedule_work(&data->waker);
2191
2192 usb_free_urb(urb);
2193 return 0;
2194 }
2195
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2196 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2197 {
2198 struct urb *urb;
2199
2200 BT_DBG("%s", hdev->name);
2201
2202 switch (hci_skb_pkt_type(skb)) {
2203 case HCI_COMMAND_PKT:
2204 urb = alloc_ctrl_urb(hdev, skb);
2205 if (IS_ERR(urb))
2206 return PTR_ERR(urb);
2207
2208 hdev->stat.cmd_tx++;
2209 return submit_or_queue_tx_urb(hdev, urb);
2210
2211 case HCI_ACLDATA_PKT:
2212 urb = alloc_bulk_urb(hdev, skb);
2213 if (IS_ERR(urb))
2214 return PTR_ERR(urb);
2215
2216 hdev->stat.acl_tx++;
2217 return submit_or_queue_tx_urb(hdev, urb);
2218
2219 case HCI_SCODATA_PKT:
2220 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2221 hci_conn_num(hdev, SCO_LINK) < 1)
2222 return -ENODEV;
2223
2224 urb = alloc_isoc_urb(hdev, skb);
2225 if (IS_ERR(urb))
2226 return PTR_ERR(urb);
2227
2228 hdev->stat.sco_tx++;
2229 return submit_tx_urb(hdev, urb);
2230
2231 case HCI_ISODATA_PKT:
2232 urb = alloc_bulk_urb(hdev, skb);
2233 if (IS_ERR(urb))
2234 return PTR_ERR(urb);
2235
2236 return submit_or_queue_tx_urb(hdev, urb);
2237 }
2238
2239 return -EILSEQ;
2240 }
2241
btusb_notify(struct hci_dev * hdev,unsigned int evt)2242 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2243 {
2244 struct btusb_data *data = hci_get_drvdata(hdev);
2245
2246 BT_DBG("%s evt %d", hdev->name, evt);
2247
2248 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2249 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2250 data->air_mode = evt;
2251 schedule_work(&data->work);
2252 }
2253 }
2254
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2255 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2256 {
2257 struct btusb_data *data = hci_get_drvdata(hdev);
2258 struct usb_interface *intf = data->isoc;
2259 struct usb_endpoint_descriptor *ep_desc;
2260 int i, err;
2261
2262 if (!data->isoc)
2263 return -ENODEV;
2264
2265 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2266 if (err < 0) {
2267 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2268 return err;
2269 }
2270
2271 data->isoc_altsetting = altsetting;
2272
2273 data->isoc_tx_ep = NULL;
2274 data->isoc_rx_ep = NULL;
2275
2276 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2277 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2278
2279 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2280 data->isoc_tx_ep = ep_desc;
2281 continue;
2282 }
2283
2284 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2285 data->isoc_rx_ep = ep_desc;
2286 continue;
2287 }
2288 }
2289
2290 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2291 bt_dev_err(hdev, "invalid SCO descriptors");
2292 return -ENODEV;
2293 }
2294
2295 return 0;
2296 }
2297
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2298 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2299 {
2300 struct btusb_data *data = hci_get_drvdata(hdev);
2301 int err;
2302
2303 if (data->isoc_altsetting != new_alts) {
2304 unsigned long flags;
2305
2306 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2307 usb_kill_anchored_urbs(&data->isoc_anchor);
2308
2309 /* When isochronous alternate setting needs to be
2310 * changed, because SCO connection has been added
2311 * or removed, a packet fragment may be left in the
2312 * reassembling state. This could lead to wrongly
2313 * assembled fragments.
2314 *
2315 * Clear outstanding fragment when selecting a new
2316 * alternate setting.
2317 */
2318 spin_lock_irqsave(&data->rxlock, flags);
2319 dev_kfree_skb_irq(data->sco_skb);
2320 data->sco_skb = NULL;
2321 spin_unlock_irqrestore(&data->rxlock, flags);
2322
2323 err = __set_isoc_interface(hdev, new_alts);
2324 if (err < 0)
2325 return err;
2326 }
2327
2328 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2329 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2330 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2331 else
2332 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2333 }
2334
2335 return 0;
2336 }
2337
btusb_find_altsetting(struct btusb_data * data,int alt)2338 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2339 int alt)
2340 {
2341 struct usb_interface *intf = data->isoc;
2342 int i;
2343
2344 BT_DBG("Looking for Alt no :%d", alt);
2345
2346 if (!intf)
2347 return NULL;
2348
2349 for (i = 0; i < intf->num_altsetting; i++) {
2350 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2351 return &intf->altsetting[i];
2352 }
2353
2354 return NULL;
2355 }
2356
btusb_work(struct work_struct * work)2357 static void btusb_work(struct work_struct *work)
2358 {
2359 struct btusb_data *data = container_of(work, struct btusb_data, work);
2360 struct hci_dev *hdev = data->hdev;
2361 int new_alts = 0;
2362 int err;
2363
2364 if (data->sco_num > 0) {
2365 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2366 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2367 if (err < 0) {
2368 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2369 usb_kill_anchored_urbs(&data->isoc_anchor);
2370 return;
2371 }
2372
2373 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2374 }
2375
2376 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2377 if (hdev->voice_setting & 0x0020) {
2378 static const int alts[3] = { 2, 4, 5 };
2379 unsigned int sco_idx;
2380
2381 sco_idx = min_t(unsigned int, data->sco_num - 1,
2382 ARRAY_SIZE(alts) - 1);
2383 new_alts = alts[sco_idx];
2384 } else {
2385 new_alts = data->sco_num;
2386 }
2387 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2388 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2389 * many adapters do not support it. Alt 1 appears to
2390 * work for all adapters that do not have alt 6, and
2391 * which work with WBS at all. Some devices prefer
2392 * alt 3 (HCI payload >= 60 Bytes let air packet
2393 * data satisfy 60 bytes), requiring
2394 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2395 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2396 */
2397 if (btusb_find_altsetting(data, 6))
2398 new_alts = 6;
2399 else if (btusb_find_altsetting(data, 3) &&
2400 hdev->sco_mtu >= 72 &&
2401 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2402 new_alts = 3;
2403 else
2404 new_alts = 1;
2405 }
2406
2407 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2408 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2409 } else {
2410 usb_kill_anchored_urbs(&data->isoc_anchor);
2411
2412 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2413 __set_isoc_interface(hdev, 0);
2414
2415 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2416 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2417 }
2418 }
2419
btusb_waker(struct work_struct * work)2420 static void btusb_waker(struct work_struct *work)
2421 {
2422 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2423 int err;
2424
2425 err = usb_autopm_get_interface(data->intf);
2426 if (err < 0)
2427 return;
2428
2429 usb_autopm_put_interface(data->intf);
2430 }
2431
btusb_rx_work(struct work_struct * work)2432 static void btusb_rx_work(struct work_struct *work)
2433 {
2434 struct btusb_data *data = container_of(work, struct btusb_data,
2435 rx_work.work);
2436 struct sk_buff *skb;
2437
2438 /* Dequeue ACL data received during the interval */
2439 while ((skb = skb_dequeue(&data->acl_q)))
2440 data->recv_acl(data->hdev, skb);
2441 }
2442
btusb_setup_bcm92035(struct hci_dev * hdev)2443 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2444 {
2445 struct sk_buff *skb;
2446 u8 val = 0x00;
2447
2448 BT_DBG("%s", hdev->name);
2449
2450 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2451 if (IS_ERR(skb))
2452 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2453 else
2454 kfree_skb(skb);
2455
2456 return 0;
2457 }
2458
btusb_setup_csr(struct hci_dev * hdev)2459 static int btusb_setup_csr(struct hci_dev *hdev)
2460 {
2461 struct btusb_data *data = hci_get_drvdata(hdev);
2462 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2463 struct hci_rp_read_local_version *rp;
2464 struct sk_buff *skb;
2465 bool is_fake = false;
2466 int ret;
2467
2468 BT_DBG("%s", hdev->name);
2469
2470 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2471 HCI_INIT_TIMEOUT);
2472 if (IS_ERR(skb)) {
2473 int err = PTR_ERR(skb);
2474 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2475 return err;
2476 }
2477
2478 rp = skb_pull_data(skb, sizeof(*rp));
2479 if (!rp) {
2480 bt_dev_err(hdev, "CSR: Local version length mismatch");
2481 kfree_skb(skb);
2482 return -EIO;
2483 }
2484
2485 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2486 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2487
2488 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2489 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2490 le16_to_cpu(rp->manufacturer));
2491
2492 /* Detect a wide host of Chinese controllers that aren't CSR.
2493 *
2494 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2495 *
2496 * The main thing they have in common is that these are really popular low-cost
2497 * options that support newer Bluetooth versions but rely on heavy VID/PID
2498 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2499 *
2500 * We detect actual CSR devices by checking that the HCI manufacturer code
2501 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2502 * HCI rev values always match. As they both store the firmware number.
2503 */
2504 if (le16_to_cpu(rp->manufacturer) != 10 ||
2505 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2506 is_fake = true;
2507
2508 /* Known legit CSR firmware build numbers and their supported BT versions:
2509 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2510 * - 1.2 (0x2) -> 0x04d9, 0x0529
2511 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2512 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2513 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2514 *
2515 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2516 * support BT 1.1 only; so it's a dead giveaway when some
2517 * third-party BT 4.0 dongle reuses it.
2518 */
2519 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2520 rp->hci_ver > BLUETOOTH_VER_1_1)
2521 is_fake = true;
2522
2523 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2524 rp->hci_ver > BLUETOOTH_VER_1_2)
2525 is_fake = true;
2526
2527 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2528 rp->hci_ver > BLUETOOTH_VER_2_0)
2529 is_fake = true;
2530
2531 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2532 rp->hci_ver > BLUETOOTH_VER_2_1)
2533 is_fake = true;
2534
2535 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2536 rp->hci_ver > BLUETOOTH_VER_4_0)
2537 is_fake = true;
2538
2539 /* Other clones which beat all the above checks */
2540 else if (bcdDevice == 0x0134 &&
2541 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2542 rp->hci_ver == BLUETOOTH_VER_2_0)
2543 is_fake = true;
2544
2545 if (is_fake) {
2546 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2547
2548 /* Generally these clones have big discrepancies between
2549 * advertised features and what's actually supported.
2550 * Probably will need to be expanded in the future;
2551 * without these the controller will lock up.
2552 */
2553 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
2554 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
2555 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL);
2556 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER);
2557 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING);
2558 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE);
2559
2560 /* Clear the reset quirk since this is not an actual
2561 * early Bluetooth 1.1 device from CSR.
2562 */
2563 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
2564 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
2565
2566 /*
2567 * Special workaround for these BT 4.0 chip clones, and potentially more:
2568 *
2569 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2570 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2571 *
2572 * These controllers are really messed-up.
2573 *
2574 * 1. Their bulk RX endpoint will never report any data unless
2575 * the device was suspended at least once (yes, really).
2576 * 2. They will not wakeup when autosuspended and receiving data
2577 * on their bulk RX endpoint from e.g. a keyboard or mouse
2578 * (IOW remote-wakeup support is broken for the bulk endpoint).
2579 *
2580 * To fix 1. enable runtime-suspend, force-suspend the
2581 * HCI and then wake-it up by disabling runtime-suspend.
2582 *
2583 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2584 * will still be autosuspended when it is not open.
2585 *
2586 * --
2587 *
2588 * Because these are widespread problems we prefer generic solutions; so
2589 * apply this initialization quirk to every controller that gets here,
2590 * it should be harmless. The alternative is to not work at all.
2591 */
2592 pm_runtime_allow(&data->udev->dev);
2593
2594 ret = pm_runtime_suspend(&data->udev->dev);
2595 if (ret >= 0)
2596 msleep(200);
2597 else
2598 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2599
2600 pm_runtime_forbid(&data->udev->dev);
2601
2602 device_set_wakeup_capable(&data->udev->dev, false);
2603
2604 /* Re-enable autosuspend if this was requested */
2605 if (enable_autosuspend)
2606 usb_enable_autosuspend(data->udev);
2607 }
2608
2609 kfree_skb(skb);
2610
2611 return 0;
2612 }
2613
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2614 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2615 {
2616 struct sk_buff *skb;
2617 struct hci_event_hdr *hdr;
2618 struct hci_ev_cmd_complete *evt;
2619
2620 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2621 if (!skb)
2622 return -ENOMEM;
2623
2624 hdr = skb_put(skb, sizeof(*hdr));
2625 hdr->evt = HCI_EV_CMD_COMPLETE;
2626 hdr->plen = sizeof(*evt) + 1;
2627
2628 evt = skb_put(skb, sizeof(*evt));
2629 evt->ncmd = 0x01;
2630 evt->opcode = cpu_to_le16(opcode);
2631
2632 skb_put_u8(skb, 0x00);
2633
2634 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2635
2636 return hci_recv_frame(hdev, skb);
2637 }
2638
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2639 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2640 int count)
2641 {
2642 struct hci_dev *hdev = data->hdev;
2643
2644 /* When the device is in bootloader mode, then it can send
2645 * events via the bulk endpoint. These events are treated the
2646 * same way as the ones received from the interrupt endpoint.
2647 */
2648 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2649 return btusb_recv_intr(data, buffer, count);
2650
2651 return btusb_recv_bulk(data, buffer, count);
2652 }
2653
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2654 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2655 {
2656 struct urb *urb;
2657
2658 BT_DBG("%s", hdev->name);
2659
2660 switch (hci_skb_pkt_type(skb)) {
2661 case HCI_COMMAND_PKT:
2662 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2663 struct hci_command_hdr *cmd = (void *)skb->data;
2664 __u16 opcode = le16_to_cpu(cmd->opcode);
2665
2666 /* When in bootloader mode and the command 0xfc09
2667 * is received, it needs to be send down the
2668 * bulk endpoint. So allocate a bulk URB instead.
2669 */
2670 if (opcode == 0xfc09)
2671 urb = alloc_bulk_urb(hdev, skb);
2672 else
2673 urb = alloc_ctrl_urb(hdev, skb);
2674
2675 /* When the BTINTEL_HCI_OP_RESET command is issued to
2676 * boot into the operational firmware, it will actually
2677 * not send a command complete event. To keep the flow
2678 * control working inject that event here.
2679 */
2680 if (opcode == BTINTEL_HCI_OP_RESET)
2681 inject_cmd_complete(hdev, opcode);
2682 } else {
2683 urb = alloc_ctrl_urb(hdev, skb);
2684 }
2685 if (IS_ERR(urb))
2686 return PTR_ERR(urb);
2687
2688 hdev->stat.cmd_tx++;
2689 return submit_or_queue_tx_urb(hdev, urb);
2690
2691 case HCI_ACLDATA_PKT:
2692 urb = alloc_bulk_urb(hdev, skb);
2693 if (IS_ERR(urb))
2694 return PTR_ERR(urb);
2695
2696 hdev->stat.acl_tx++;
2697 return submit_or_queue_tx_urb(hdev, urb);
2698
2699 case HCI_SCODATA_PKT:
2700 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2701 hci_conn_num(hdev, SCO_LINK) < 1)
2702 return -ENODEV;
2703
2704 urb = alloc_isoc_urb(hdev, skb);
2705 if (IS_ERR(urb))
2706 return PTR_ERR(urb);
2707
2708 hdev->stat.sco_tx++;
2709 return submit_tx_urb(hdev, urb);
2710
2711 case HCI_ISODATA_PKT:
2712 urb = alloc_bulk_urb(hdev, skb);
2713 if (IS_ERR(urb))
2714 return PTR_ERR(urb);
2715
2716 return submit_or_queue_tx_urb(hdev, urb);
2717 }
2718
2719 return -EILSEQ;
2720 }
2721
btusb_setup_realtek(struct hci_dev * hdev)2722 static int btusb_setup_realtek(struct hci_dev *hdev)
2723 {
2724 struct btusb_data *data = hci_get_drvdata(hdev);
2725 int ret;
2726
2727 ret = btrtl_setup_realtek(hdev);
2728
2729 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2730 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2731
2732 return ret;
2733 }
2734
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2735 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2736 {
2737 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2738 struct rtk_dev_coredump_hdr hdr = {
2739 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2740 };
2741
2742 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2743 skb->len);
2744
2745 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2746 kfree_skb(skb);
2747
2748 return 0;
2749 }
2750
2751 return hci_recv_frame(hdev, skb);
2752 }
2753
btusb_mtk_claim_iso_intf(struct btusb_data * data)2754 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2755 {
2756 struct btmtk_data *btmtk_data;
2757 int err;
2758
2759 if (!data->hdev)
2760 return;
2761
2762 btmtk_data = hci_get_priv(data->hdev);
2763 if (!btmtk_data)
2764 return;
2765
2766 if (!btmtk_data->isopkt_intf) {
2767 bt_dev_err(data->hdev, "Can't claim NULL iso interface");
2768 return;
2769 }
2770
2771 /*
2772 * The function usb_driver_claim_interface() is documented to need
2773 * locks held if it's not called from a probe routine. The code here
2774 * is called from the hci_power_on workqueue, so grab the lock.
2775 */
2776 device_lock(&btmtk_data->isopkt_intf->dev);
2777 err = usb_driver_claim_interface(&btusb_driver,
2778 btmtk_data->isopkt_intf, data);
2779 device_unlock(&btmtk_data->isopkt_intf->dev);
2780 if (err < 0) {
2781 btmtk_data->isopkt_intf = NULL;
2782 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err);
2783 return;
2784 }
2785
2786 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2787 init_usb_anchor(&btmtk_data->isopkt_anchor);
2788 }
2789
btusb_mtk_release_iso_intf(struct hci_dev * hdev)2790 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2791 {
2792 struct btmtk_data *btmtk_data;
2793
2794 if (!hdev)
2795 return;
2796
2797 btmtk_data = hci_get_priv(hdev);
2798 if (!btmtk_data)
2799 return;
2800
2801 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2802 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2803 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2804
2805 if (btmtk_data->isopkt_skb) {
2806 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2807 btmtk_data->isopkt_skb = NULL;
2808 }
2809
2810 if (btmtk_data->isopkt_intf) {
2811 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2812 usb_driver_release_interface(&btusb_driver,
2813 btmtk_data->isopkt_intf);
2814 btmtk_data->isopkt_intf = NULL;
2815 }
2816 }
2817
2818 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2819 }
2820
btusb_mtk_disconnect(struct hci_dev * hdev)2821 static int btusb_mtk_disconnect(struct hci_dev *hdev)
2822 {
2823 /* This function describes the specific additional steps taken by MediaTek
2824 * when Bluetooth usb driver's resume function is called.
2825 */
2826 btusb_mtk_release_iso_intf(hdev);
2827
2828 return 0;
2829 }
2830
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)2831 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2832 {
2833 struct btusb_data *data = hci_get_drvdata(hdev);
2834 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2835 int err;
2836
2837 /* It's MediaTek specific bluetooth reset mechanism via USB */
2838 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2839 bt_dev_err(hdev, "last reset failed? Not resetting again");
2840 return -EBUSY;
2841 }
2842
2843 err = usb_autopm_get_interface(data->intf);
2844 if (err < 0)
2845 return err;
2846
2847 /* Release MediaTek ISO data interface */
2848 btusb_mtk_release_iso_intf(hdev);
2849
2850 btusb_stop_traffic(data);
2851 usb_kill_anchored_urbs(&data->tx_anchor);
2852
2853 /* Toggle the hard reset line. The MediaTek device is going to
2854 * yank itself off the USB and then replug. The cleanup is handled
2855 * correctly on the way out (standard USB disconnect), and the new
2856 * device is detected cleanly and bound to the driver again like
2857 * it should be.
2858 */
2859 if (data->reset_gpio) {
2860 gpiod_set_value_cansleep(data->reset_gpio, 1);
2861 msleep(200);
2862 gpiod_set_value_cansleep(data->reset_gpio, 0);
2863 return 0;
2864 }
2865
2866 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2867
2868 usb_queue_reset_device(data->intf);
2869 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2870
2871 return err;
2872 }
2873
btusb_send_frame_mtk(struct hci_dev * hdev,struct sk_buff * skb)2874 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2875 {
2876 struct urb *urb;
2877
2878 BT_DBG("%s", hdev->name);
2879
2880 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2881 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2882 if (IS_ERR(urb))
2883 return PTR_ERR(urb);
2884
2885 return submit_or_queue_tx_urb(hdev, urb);
2886 } else {
2887 return btusb_send_frame(hdev, skb);
2888 }
2889 }
2890
btusb_mtk_setup(struct hci_dev * hdev)2891 static int btusb_mtk_setup(struct hci_dev *hdev)
2892 {
2893 struct btusb_data *data = hci_get_drvdata(hdev);
2894 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2895
2896 /* MediaTek WMT vendor cmd requiring below USB resources to
2897 * complete the handshake.
2898 */
2899 btmtk_data->drv_name = btusb_driver.name;
2900 btmtk_data->intf = data->intf;
2901 btmtk_data->udev = data->udev;
2902 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2903 btmtk_data->reset_sync = btusb_mtk_reset;
2904
2905 /* Claim ISO data interface and endpoint */
2906 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2907 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2908 btusb_mtk_claim_iso_intf(data);
2909 }
2910
2911 return btmtk_usb_setup(hdev);
2912 }
2913
btusb_mtk_shutdown(struct hci_dev * hdev)2914 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2915 {
2916 int ret;
2917
2918 ret = btmtk_usb_shutdown(hdev);
2919
2920 /* Release MediaTek iso interface after shutdown */
2921 btusb_mtk_release_iso_intf(hdev);
2922
2923 return ret;
2924 }
2925
2926 #ifdef CONFIG_PM
2927 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)2928 static int marvell_config_oob_wake(struct hci_dev *hdev)
2929 {
2930 struct sk_buff *skb;
2931 struct btusb_data *data = hci_get_drvdata(hdev);
2932 struct device *dev = &data->udev->dev;
2933 u16 pin, gap, opcode;
2934 int ret;
2935 u8 cmd[5];
2936
2937 /* Move on if no wakeup pin specified */
2938 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2939 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2940 return 0;
2941
2942 /* Vendor specific command to configure a GPIO as wake-up pin */
2943 opcode = hci_opcode_pack(0x3F, 0x59);
2944 cmd[0] = opcode & 0xFF;
2945 cmd[1] = opcode >> 8;
2946 cmd[2] = 2; /* length of parameters that follow */
2947 cmd[3] = pin;
2948 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2949
2950 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2951 if (!skb) {
2952 bt_dev_err(hdev, "%s: No memory", __func__);
2953 return -ENOMEM;
2954 }
2955
2956 skb_put_data(skb, cmd, sizeof(cmd));
2957 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2958
2959 ret = btusb_send_frame(hdev, skb);
2960 if (ret) {
2961 bt_dev_err(hdev, "%s: configuration failed", __func__);
2962 kfree_skb(skb);
2963 return ret;
2964 }
2965
2966 return 0;
2967 }
2968 #endif
2969
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)2970 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2971 const bdaddr_t *bdaddr)
2972 {
2973 struct sk_buff *skb;
2974 u8 buf[8];
2975 long ret;
2976
2977 buf[0] = 0xfe;
2978 buf[1] = sizeof(bdaddr_t);
2979 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2980
2981 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2982 if (IS_ERR(skb)) {
2983 ret = PTR_ERR(skb);
2984 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2985 ret);
2986 return ret;
2987 }
2988 kfree_skb(skb);
2989
2990 return 0;
2991 }
2992
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)2993 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2994 const bdaddr_t *bdaddr)
2995 {
2996 struct sk_buff *skb;
2997 u8 buf[10];
2998 long ret;
2999
3000 buf[0] = 0x01;
3001 buf[1] = 0x01;
3002 buf[2] = 0x00;
3003 buf[3] = sizeof(bdaddr_t);
3004 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3005
3006 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3007 if (IS_ERR(skb)) {
3008 ret = PTR_ERR(skb);
3009 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3010 return ret;
3011 }
3012 kfree_skb(skb);
3013
3014 return 0;
3015 }
3016
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)3017 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3018 const bdaddr_t *bdaddr)
3019 {
3020 struct sk_buff *skb;
3021 u8 buf[6];
3022 long ret;
3023
3024 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3025
3026 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3027 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3028 if (IS_ERR(skb)) {
3029 ret = PTR_ERR(skb);
3030 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3031 return ret;
3032 }
3033 kfree_skb(skb);
3034
3035 return 0;
3036 }
3037
3038 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3039 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3040 #define QCA_MEMDUMP_VSE_CLASS 0x01
3041 #define QCA_MEMDUMP_MSG_TYPE 0x08
3042 #define QCA_MEMDUMP_PKT_SIZE 248
3043 #define QCA_LAST_SEQUENCE_NUM 0xffff
3044
3045 struct qca_dump_hdr {
3046 u8 vse_class;
3047 u8 msg_type;
3048 __le16 seqno;
3049 u8 reserved;
3050 union {
3051 u8 data[0];
3052 struct {
3053 __le32 ram_dump_size;
3054 u8 data0[0];
3055 } __packed;
3056 };
3057 } __packed;
3058
3059
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)3060 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3061 {
3062 char buf[128];
3063 struct btusb_data *btdata = hci_get_drvdata(hdev);
3064
3065 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3066 btdata->qca_dump.controller_id);
3067 skb_put_data(skb, buf, strlen(buf));
3068
3069 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3070 btdata->qca_dump.fw_version);
3071 skb_put_data(skb, buf, strlen(buf));
3072
3073 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3074 btusb_driver.name);
3075 skb_put_data(skb, buf, strlen(buf));
3076
3077 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3078 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3079 skb_put_data(skb, buf, strlen(buf));
3080
3081 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3082 hdev->lmp_subver);
3083 skb_put_data(skb, buf, strlen(buf));
3084 }
3085
btusb_coredump_qca(struct hci_dev * hdev)3086 static void btusb_coredump_qca(struct hci_dev *hdev)
3087 {
3088 int err;
3089 static const u8 param[] = { 0x26 };
3090
3091 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3092 if (err < 0)
3093 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3094 }
3095
3096 /* Return: 0 on success, negative errno on failure. */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)3097 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3098 {
3099 int ret = 0;
3100 unsigned int skip = 0;
3101 u8 pkt_type;
3102 u16 seqno;
3103 u32 dump_size;
3104
3105 struct qca_dump_hdr *dump_hdr;
3106 struct btusb_data *btdata = hci_get_drvdata(hdev);
3107 struct usb_device *udev = btdata->udev;
3108
3109 pkt_type = hci_skb_pkt_type(skb);
3110 skip = sizeof(struct hci_event_hdr);
3111 if (pkt_type == HCI_ACLDATA_PKT)
3112 skip += sizeof(struct hci_acl_hdr);
3113
3114 skb_pull(skb, skip);
3115 dump_hdr = (struct qca_dump_hdr *)skb->data;
3116
3117 seqno = le16_to_cpu(dump_hdr->seqno);
3118 if (seqno == 0) {
3119 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3120 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3121 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3122 ret = -EILSEQ;
3123 bt_dev_err(hdev, "Invalid memdump size(%u)",
3124 dump_size);
3125 goto out;
3126 }
3127
3128 ret = hci_devcd_init(hdev, dump_size);
3129 if (ret < 0) {
3130 bt_dev_err(hdev, "memdump init error(%d)", ret);
3131 goto out;
3132 }
3133
3134 btdata->qca_dump.ram_dump_size = dump_size;
3135 btdata->qca_dump.ram_dump_seqno = 0;
3136
3137 skb_pull(skb, offsetof(struct qca_dump_hdr, data0));
3138
3139 usb_disable_autosuspend(udev);
3140 bt_dev_info(hdev, "%s memdump size(%u)\n",
3141 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3142 dump_size);
3143 } else {
3144 skb_pull(skb, offsetof(struct qca_dump_hdr, data));
3145 }
3146
3147 if (!btdata->qca_dump.ram_dump_size) {
3148 ret = -EINVAL;
3149 bt_dev_err(hdev, "memdump is not active");
3150 goto out;
3151 }
3152
3153 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3154 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3155 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3156 bt_dev_err(hdev,
3157 "expected memdump seqno(%u) is not received(%u)\n",
3158 btdata->qca_dump.ram_dump_seqno, seqno);
3159 btdata->qca_dump.ram_dump_seqno = seqno;
3160 kfree_skb(skb);
3161 return ret;
3162 }
3163
3164 hci_devcd_append(hdev, skb);
3165 btdata->qca_dump.ram_dump_seqno++;
3166 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3167 bt_dev_info(hdev,
3168 "memdump done: pkts(%u), total(%u)\n",
3169 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3170
3171 hci_devcd_complete(hdev);
3172 goto out;
3173 }
3174 return ret;
3175
3176 out:
3177 if (btdata->qca_dump.ram_dump_size)
3178 usb_enable_autosuspend(udev);
3179 btdata->qca_dump.ram_dump_size = 0;
3180 btdata->qca_dump.ram_dump_seqno = 0;
3181 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3182
3183 if (ret < 0)
3184 kfree_skb(skb);
3185 return ret;
3186 }
3187
3188 /* 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)3189 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3190 {
3191 struct hci_event_hdr *event_hdr;
3192 struct hci_acl_hdr *acl_hdr;
3193 struct qca_dump_hdr *dump_hdr;
3194 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3195 bool is_dump = false;
3196
3197 if (!clone)
3198 return false;
3199
3200 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr));
3201 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE))
3202 goto out;
3203
3204 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3205 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3206 goto out;
3207
3208 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3209 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3210 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3211 goto out;
3212
3213 is_dump = true;
3214 out:
3215 consume_skb(clone);
3216 return is_dump;
3217 }
3218
3219 /* 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)3220 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3221 {
3222 struct hci_event_hdr *event_hdr;
3223 struct qca_dump_hdr *dump_hdr;
3224 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3225 bool is_dump = false;
3226
3227 if (!clone)
3228 return false;
3229
3230 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3231 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3232 goto out;
3233
3234 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3235 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3236 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3237 goto out;
3238
3239 is_dump = true;
3240 out:
3241 consume_skb(clone);
3242 return is_dump;
3243 }
3244
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3245 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3246 {
3247 if (acl_pkt_is_dump_qca(hdev, skb))
3248 return handle_dump_pkt_qca(hdev, skb);
3249 return hci_recv_frame(hdev, skb);
3250 }
3251
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3252 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3253 {
3254 if (evt_pkt_is_dump_qca(hdev, skb))
3255 return handle_dump_pkt_qca(hdev, skb);
3256 return hci_recv_frame(hdev, skb);
3257 }
3258
3259
3260 #define QCA_DFU_PACKET_LEN 4096
3261
3262 #define QCA_GET_TARGET_VERSION 0x09
3263 #define QCA_CHECK_STATUS 0x05
3264 #define QCA_DFU_DOWNLOAD 0x01
3265
3266 #define QCA_SYSCFG_UPDATED 0x40
3267 #define QCA_PATCH_UPDATED 0x80
3268 #define QCA_DFU_TIMEOUT 3000
3269 #define QCA_FLAG_MULTI_NVM 0x80
3270 #define QCA_BT_RESET_WAIT_MS 100
3271
3272 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3273 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3274
3275 struct qca_version {
3276 __le32 rom_version;
3277 __le32 patch_version;
3278 __le32 ram_version;
3279 __u8 chip_id;
3280 __u8 platform_id;
3281 __le16 flag;
3282 __u8 reserved[4];
3283 } __packed;
3284
3285 struct qca_rampatch_version {
3286 __le16 rom_version_high;
3287 __le16 rom_version_low;
3288 __le16 patch_version;
3289 } __packed;
3290
3291 struct qca_device_info {
3292 u32 rom_version;
3293 u8 rampatch_hdr; /* length of header in rampatch */
3294 u8 nvm_hdr; /* length of header in NVM */
3295 u8 ver_offset; /* offset of version structure in rampatch */
3296 };
3297
3298 struct qca_custom_firmware {
3299 u32 rom_version;
3300 u16 board_id;
3301 const char *subdirectory;
3302 };
3303
3304 static const struct qca_device_info qca_devices_table[] = {
3305 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3306 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3307 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3308 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3309 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3310 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3311 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3312 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3313 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3314 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3315 };
3316
3317 static const struct qca_custom_firmware qca_custom_btfws[] = {
3318 { 0x00130201, 0x030A, "QCA2066" },
3319 { 0x00130201, 0x030B, "QCA2066" },
3320 { },
3321 };
3322
qca_extract_board_id(const struct qca_version * ver)3323 static u16 qca_extract_board_id(const struct qca_version *ver)
3324 {
3325 u16 flag = le16_to_cpu(ver->flag);
3326 u16 board_id = 0;
3327
3328 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3329 /* The board_id should be split into two bytes
3330 * The 1st byte is chip ID, and the 2nd byte is platform ID
3331 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3332 * we have several platforms, and platform IDs are continuously added
3333 * Platform ID:
3334 * 0x00 is for Mobile
3335 * 0x01 is for X86
3336 * 0x02 is for Automotive
3337 * 0x03 is for Consumer electronic
3338 */
3339 board_id = (ver->chip_id << 8) + ver->platform_id;
3340 }
3341
3342 /* Take 0xffff as invalid board ID */
3343 if (board_id == 0xffff)
3344 board_id = 0;
3345
3346 return board_id;
3347 }
3348
qca_get_fw_subdirectory(const struct qca_version * ver)3349 static const char *qca_get_fw_subdirectory(const struct qca_version *ver)
3350 {
3351 const struct qca_custom_firmware *ptr;
3352 u32 rom_ver;
3353 u16 board_id;
3354
3355 rom_ver = le32_to_cpu(ver->rom_version);
3356 board_id = qca_extract_board_id(ver);
3357 if (!board_id)
3358 return NULL;
3359
3360 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) {
3361 if (ptr->rom_version == rom_ver &&
3362 ptr->board_id == board_id)
3363 return ptr->subdirectory;
3364 }
3365
3366 return NULL;
3367 }
3368
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3369 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3370 void *data, u16 size)
3371 {
3372 int pipe, err;
3373 u8 *buf;
3374
3375 buf = kmalloc(size, GFP_KERNEL);
3376 if (!buf)
3377 return -ENOMEM;
3378
3379 /* Found some of USB hosts have IOT issues with ours so that we should
3380 * not wait until HCI layer is ready.
3381 */
3382 pipe = usb_rcvctrlpipe(udev, 0);
3383 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3384 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3385 if (err < 0) {
3386 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3387 goto done;
3388 }
3389
3390 memcpy(data, buf, size);
3391
3392 done:
3393 kfree(buf);
3394
3395 return err;
3396 }
3397
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3398 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3399 const struct firmware *firmware,
3400 size_t hdr_size)
3401 {
3402 struct btusb_data *btdata = hci_get_drvdata(hdev);
3403 struct usb_device *udev = btdata->udev;
3404 size_t count, size, sent = 0;
3405 int pipe, len, err;
3406 u8 *buf;
3407
3408 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3409 if (!buf)
3410 return -ENOMEM;
3411
3412 count = firmware->size;
3413
3414 size = min_t(size_t, count, hdr_size);
3415 memcpy(buf, firmware->data, size);
3416
3417 /* USB patches should go down to controller through USB path
3418 * because binary format fits to go down through USB channel.
3419 * USB control path is for patching headers and USB bulk is for
3420 * patch body.
3421 */
3422 pipe = usb_sndctrlpipe(udev, 0);
3423 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3424 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3425 if (err < 0) {
3426 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3427 goto done;
3428 }
3429
3430 sent += size;
3431 count -= size;
3432
3433 /* ep2 need time to switch from function acl to function dfu,
3434 * so we add 20ms delay here.
3435 */
3436 msleep(20);
3437
3438 while (count) {
3439 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3440
3441 memcpy(buf, firmware->data + sent, size);
3442
3443 pipe = usb_sndbulkpipe(udev, 0x02);
3444 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3445 QCA_DFU_TIMEOUT);
3446 if (err < 0) {
3447 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3448 sent, firmware->size, err);
3449 break;
3450 }
3451
3452 if (size != len) {
3453 bt_dev_err(hdev, "Failed to get bulk buffer");
3454 err = -EILSEQ;
3455 break;
3456 }
3457
3458 sent += size;
3459 count -= size;
3460 }
3461
3462 done:
3463 kfree(buf);
3464 return err;
3465 }
3466
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3467 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3468 struct qca_version *ver,
3469 const struct qca_device_info *info)
3470 {
3471 struct qca_rampatch_version *rver;
3472 const struct firmware *fw;
3473 const char *fw_subdir;
3474 u32 ver_rom, ver_patch, rver_rom;
3475 u16 rver_rom_low, rver_rom_high, rver_patch;
3476 char fwname[80];
3477 int err;
3478
3479 ver_rom = le32_to_cpu(ver->rom_version);
3480 ver_patch = le32_to_cpu(ver->patch_version);
3481
3482 fw_subdir = qca_get_fw_subdirectory(ver);
3483 if (fw_subdir)
3484 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin",
3485 fw_subdir, ver_rom);
3486 else
3487 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin",
3488 ver_rom);
3489
3490 err = request_firmware(&fw, fwname, &hdev->dev);
3491 if (err) {
3492 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3493 fwname, err);
3494 return err;
3495 }
3496
3497 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3498
3499 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3500 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3501 rver_patch = le16_to_cpu(rver->patch_version);
3502
3503 if (ver_rom & ~0xffffU) {
3504 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3505 rver_rom = rver_rom_high << 16 | rver_rom_low;
3506 } else {
3507 rver_rom = rver_rom_low;
3508 }
3509
3510 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3511 "firmware rome 0x%x build 0x%x",
3512 rver_rom, rver_patch, ver_rom, ver_patch);
3513
3514 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3515 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3516 err = -EINVAL;
3517 goto done;
3518 }
3519
3520 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3521
3522 done:
3523 release_firmware(fw);
3524
3525 return err;
3526 }
3527
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3528 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3529 const struct qca_version *ver)
3530 {
3531 u32 rom_version = le32_to_cpu(ver->rom_version);
3532 const char *variant, *fw_subdir;
3533 int len;
3534 u16 board_id;
3535
3536 fw_subdir = qca_get_fw_subdirectory(ver);
3537 board_id = qca_extract_board_id(ver);
3538
3539 switch (le32_to_cpu(ver->ram_version)) {
3540 case WCN6855_2_0_RAM_VERSION_GF:
3541 case WCN6855_2_1_RAM_VERSION_GF:
3542 variant = "_gf";
3543 break;
3544 default:
3545 variant = NULL;
3546 break;
3547 }
3548
3549 if (fw_subdir)
3550 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x",
3551 fw_subdir, rom_version);
3552 else
3553 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x",
3554 rom_version);
3555 if (variant)
3556 len += snprintf(fwname + len, max_size - len, "%s", variant);
3557 if (board_id)
3558 len += snprintf(fwname + len, max_size - len, "_%04x", board_id);
3559 len += snprintf(fwname + len, max_size - len, ".bin");
3560 }
3561
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3562 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3563 struct qca_version *ver,
3564 const struct qca_device_info *info)
3565 {
3566 const struct firmware *fw;
3567 char fwname[80];
3568 int err;
3569
3570 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3571
3572 err = request_firmware(&fw, fwname, &hdev->dev);
3573 if (err) {
3574 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3575 fwname, err);
3576 return err;
3577 }
3578
3579 bt_dev_info(hdev, "using NVM file: %s", fwname);
3580
3581 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3582
3583 release_firmware(fw);
3584
3585 return err;
3586 }
3587
3588 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3589 static bool btusb_qca_need_patch(struct usb_device *udev)
3590 {
3591 struct qca_version ver;
3592
3593 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3594 sizeof(ver)) < 0)
3595 return false;
3596 /* only low ROM versions need patches */
3597 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3598 }
3599
btusb_setup_qca(struct hci_dev * hdev)3600 static int btusb_setup_qca(struct hci_dev *hdev)
3601 {
3602 struct btusb_data *btdata = hci_get_drvdata(hdev);
3603 struct usb_device *udev = btdata->udev;
3604 const struct qca_device_info *info = NULL;
3605 struct qca_version ver;
3606 u32 ver_rom;
3607 u8 status;
3608 int i, err;
3609
3610 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3611 sizeof(ver));
3612 if (err < 0)
3613 return err;
3614
3615 ver_rom = le32_to_cpu(ver.rom_version);
3616
3617 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3618 if (ver_rom == qca_devices_table[i].rom_version)
3619 info = &qca_devices_table[i];
3620 }
3621 if (!info) {
3622 /* If the rom_version is not matched in the qca_devices_table
3623 * and the high ROM version is not zero, we assume this chip no
3624 * need to load the rampatch and nvm.
3625 */
3626 if (ver_rom & ~0xffffU)
3627 return 0;
3628
3629 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3630 return -ENODEV;
3631 }
3632
3633 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3634 sizeof(status));
3635 if (err < 0)
3636 return err;
3637
3638 if (!(status & QCA_PATCH_UPDATED)) {
3639 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3640 if (err < 0)
3641 return err;
3642 }
3643
3644 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3645 sizeof(ver));
3646 if (err < 0)
3647 return err;
3648
3649 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3650 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3651
3652 if (!(status & QCA_SYSCFG_UPDATED)) {
3653 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3654 if (err < 0)
3655 return err;
3656
3657 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3658 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3659 * cause potential enable failure.
3660 */
3661 if (info->rom_version >= 0x00130201)
3662 msleep(QCA_BT_RESET_WAIT_MS);
3663 }
3664
3665 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3666 * work with the likes of HSP/HFP mSBC.
3667 */
3668 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
3669
3670 return 0;
3671 }
3672
__set_diag_interface(struct hci_dev * hdev)3673 static inline int __set_diag_interface(struct hci_dev *hdev)
3674 {
3675 struct btusb_data *data = hci_get_drvdata(hdev);
3676 struct usb_interface *intf = data->diag;
3677 int i;
3678
3679 if (!data->diag)
3680 return -ENODEV;
3681
3682 data->diag_tx_ep = NULL;
3683 data->diag_rx_ep = NULL;
3684
3685 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3686 struct usb_endpoint_descriptor *ep_desc;
3687
3688 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3689
3690 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3691 data->diag_tx_ep = ep_desc;
3692 continue;
3693 }
3694
3695 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3696 data->diag_rx_ep = ep_desc;
3697 continue;
3698 }
3699 }
3700
3701 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3702 bt_dev_err(hdev, "invalid diagnostic descriptors");
3703 return -ENODEV;
3704 }
3705
3706 return 0;
3707 }
3708
alloc_diag_urb(struct hci_dev * hdev,bool enable)3709 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3710 {
3711 struct btusb_data *data = hci_get_drvdata(hdev);
3712 struct sk_buff *skb;
3713 struct urb *urb;
3714 unsigned int pipe;
3715
3716 if (!data->diag_tx_ep)
3717 return ERR_PTR(-ENODEV);
3718
3719 urb = usb_alloc_urb(0, GFP_KERNEL);
3720 if (!urb)
3721 return ERR_PTR(-ENOMEM);
3722
3723 skb = bt_skb_alloc(2, GFP_KERNEL);
3724 if (!skb) {
3725 usb_free_urb(urb);
3726 return ERR_PTR(-ENOMEM);
3727 }
3728
3729 skb_put_u8(skb, 0xf0);
3730 skb_put_u8(skb, enable);
3731
3732 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3733
3734 usb_fill_bulk_urb(urb, data->udev, pipe,
3735 skb->data, skb->len, btusb_tx_complete, skb);
3736
3737 skb->dev = (void *)hdev;
3738
3739 return urb;
3740 }
3741
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)3742 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3743 {
3744 struct btusb_data *data = hci_get_drvdata(hdev);
3745 struct urb *urb;
3746
3747 if (!data->diag)
3748 return -ENODEV;
3749
3750 if (!test_bit(HCI_RUNNING, &hdev->flags))
3751 return -ENETDOWN;
3752
3753 urb = alloc_diag_urb(hdev, enable);
3754 if (IS_ERR(urb))
3755 return PTR_ERR(urb);
3756
3757 return submit_or_queue_tx_urb(hdev, urb);
3758 }
3759
3760 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)3761 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3762 {
3763 struct btusb_data *data = priv;
3764
3765 pm_wakeup_event(&data->udev->dev, 0);
3766 pm_system_wakeup();
3767
3768 /* Disable only if not already disabled (keep it balanced) */
3769 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3770 disable_irq_nosync(irq);
3771 disable_irq_wake(irq);
3772 }
3773 return IRQ_HANDLED;
3774 }
3775
3776 static const struct of_device_id btusb_match_table[] = {
3777 { .compatible = "usb1286,204e" },
3778 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3779 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3780 { }
3781 };
3782 MODULE_DEVICE_TABLE(of, btusb_match_table);
3783
3784 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)3785 static int btusb_config_oob_wake(struct hci_dev *hdev)
3786 {
3787 struct btusb_data *data = hci_get_drvdata(hdev);
3788 struct device *dev = &data->udev->dev;
3789 int irq, ret;
3790
3791 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3792
3793 if (!of_match_device(btusb_match_table, dev))
3794 return 0;
3795
3796 /* Move on if no IRQ specified */
3797 irq = of_irq_get_byname(dev->of_node, "wakeup");
3798 if (irq <= 0) {
3799 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3800 return 0;
3801 }
3802
3803 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3804 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3805 0, "OOB Wake-on-BT", data);
3806 if (ret) {
3807 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3808 return ret;
3809 }
3810
3811 ret = device_init_wakeup(dev, true);
3812 if (ret) {
3813 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3814 return ret;
3815 }
3816
3817 data->oob_wake_irq = irq;
3818 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3819 return 0;
3820 }
3821 #endif
3822
btusb_check_needs_reset_resume(struct usb_interface * intf)3823 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3824 {
3825 if (dmi_check_system(btusb_needs_reset_resume_table))
3826 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3827 }
3828
btusb_wakeup(struct hci_dev * hdev)3829 static bool btusb_wakeup(struct hci_dev *hdev)
3830 {
3831 struct btusb_data *data = hci_get_drvdata(hdev);
3832
3833 return device_may_wakeup(&data->udev->dev);
3834 }
3835
btusb_shutdown_qca(struct hci_dev * hdev)3836 static int btusb_shutdown_qca(struct hci_dev *hdev)
3837 {
3838 struct sk_buff *skb;
3839
3840 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3841 if (IS_ERR(skb)) {
3842 bt_dev_err(hdev, "HCI reset during shutdown failed");
3843 return PTR_ERR(skb);
3844 }
3845 kfree_skb(skb);
3846
3847 return 0;
3848 }
3849
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)3850 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3851 size_t count, loff_t *ppos)
3852 {
3853 struct btusb_data *data = file->private_data;
3854 char buf[3];
3855
3856 buf[0] = data->poll_sync ? 'Y' : 'N';
3857 buf[1] = '\n';
3858 buf[2] = '\0';
3859 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3860 }
3861
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)3862 static ssize_t force_poll_sync_write(struct file *file,
3863 const char __user *user_buf,
3864 size_t count, loff_t *ppos)
3865 {
3866 struct btusb_data *data = file->private_data;
3867 bool enable;
3868 int err;
3869
3870 err = kstrtobool_from_user(user_buf, count, &enable);
3871 if (err)
3872 return err;
3873
3874 /* Only allow changes while the adapter is down */
3875 if (test_bit(HCI_UP, &data->hdev->flags))
3876 return -EPERM;
3877
3878 if (data->poll_sync == enable)
3879 return -EALREADY;
3880
3881 data->poll_sync = enable;
3882
3883 return count;
3884 }
3885
3886 static const struct file_operations force_poll_sync_fops = {
3887 .owner = THIS_MODULE,
3888 .open = simple_open,
3889 .read = force_poll_sync_read,
3890 .write = force_poll_sync_write,
3891 .llseek = default_llseek,
3892 };
3893
3894 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \
3895 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000)
3896 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0
3897 struct btusb_hci_drv_rp_supported_altsettings {
3898 __u8 num;
3899 __u8 altsettings[];
3900 } __packed;
3901
3902 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \
3903 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001)
3904 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1
3905 struct btusb_hci_drv_cmd_switch_altsetting {
3906 __u8 altsetting;
3907 } __packed;
3908
3909 static const struct {
3910 u16 opcode;
3911 const char *desc;
3912 } btusb_hci_drv_supported_commands[] = {
3913 /* Common commands */
3914 { HCI_DRV_OP_READ_INFO, "Read Info" },
3915
3916 /* Driver specific commands */
3917 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" },
3918 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" },
3919 };
btusb_hci_drv_read_info(struct hci_dev * hdev,void * data,u16 data_len)3920 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data,
3921 u16 data_len)
3922 {
3923 struct hci_drv_rp_read_info *rp;
3924 size_t rp_size;
3925 int err, i;
3926 u16 opcode, num_supported_commands =
3927 ARRAY_SIZE(btusb_hci_drv_supported_commands);
3928
3929 rp_size = sizeof(*rp) + num_supported_commands * 2;
3930
3931 rp = kmalloc(rp_size, GFP_KERNEL);
3932 if (!rp)
3933 return -ENOMEM;
3934
3935 strscpy_pad(rp->driver_name, btusb_driver.name);
3936
3937 rp->num_supported_commands = cpu_to_le16(num_supported_commands);
3938 for (i = 0; i < num_supported_commands; i++) {
3939 opcode = btusb_hci_drv_supported_commands[i].opcode;
3940 bt_dev_info(hdev,
3941 "Supported HCI Drv command (0x%02x|0x%04x): %s",
3942 hci_opcode_ogf(opcode),
3943 hci_opcode_ocf(opcode),
3944 btusb_hci_drv_supported_commands[i].desc);
3945 rp->supported_commands[i] = cpu_to_le16(opcode);
3946 }
3947
3948 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO,
3949 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3950
3951 kfree(rp);
3952 return err;
3953 }
3954
btusb_hci_drv_supported_altsettings(struct hci_dev * hdev,void * data,u16 data_len)3955 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data,
3956 u16 data_len)
3957 {
3958 struct btusb_data *drvdata = hci_get_drvdata(hdev);
3959 struct btusb_hci_drv_rp_supported_altsettings *rp;
3960 size_t rp_size;
3961 int err;
3962 u8 i;
3963
3964 /* There are at most 7 alt (0 - 6) */
3965 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL);
3966 if (!rp)
3967 return -ENOMEM;
3968
3969 rp->num = 0;
3970 if (!drvdata->isoc)
3971 goto done;
3972
3973 for (i = 0; i <= 6; i++) {
3974 if (btusb_find_altsetting(drvdata, i))
3975 rp->altsettings[rp->num++] = i;
3976 }
3977
3978 done:
3979 rp_size = sizeof(*rp) + rp->num;
3980
3981 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS,
3982 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3983 kfree(rp);
3984 return err;
3985 }
3986
btusb_hci_drv_switch_altsetting(struct hci_dev * hdev,void * data,u16 data_len)3987 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data,
3988 u16 data_len)
3989 {
3990 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data;
3991 u8 status;
3992
3993 if (cmd->altsetting > 6) {
3994 status = HCI_DRV_STATUS_INVALID_PARAMETERS;
3995 } else {
3996 if (btusb_switch_alt_setting(hdev, cmd->altsetting))
3997 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR;
3998 else
3999 status = HCI_DRV_STATUS_SUCCESS;
4000 }
4001
4002 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING,
4003 status);
4004 }
4005
4006 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = {
4007 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE },
4008 };
4009
4010 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = {
4011 { btusb_hci_drv_supported_altsettings,
4012 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE },
4013 { btusb_hci_drv_switch_altsetting,
4014 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE },
4015 };
4016
4017 static struct hci_drv btusb_hci_drv = {
4018 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers),
4019 .common_handlers = btusb_hci_drv_common_handlers,
4020 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers),
4021 .specific_handlers = btusb_hci_drv_specific_handlers,
4022 };
4023
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)4024 static int btusb_probe(struct usb_interface *intf,
4025 const struct usb_device_id *id)
4026 {
4027 struct usb_endpoint_descriptor *ep_desc;
4028 struct gpio_desc *reset_gpio;
4029 struct btusb_data *data;
4030 struct hci_dev *hdev;
4031 unsigned ifnum_base;
4032 int i, err, priv_size;
4033
4034 BT_DBG("intf %p id %p", intf, id);
4035
4036 if ((id->driver_info & BTUSB_IFNUM_2) &&
4037 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4038 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4039 return -ENODEV;
4040
4041 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4042
4043 if (!id->driver_info) {
4044 const struct usb_device_id *match;
4045
4046 match = usb_match_id(intf, quirks_table);
4047 if (match)
4048 id = match;
4049 }
4050
4051 if (id->driver_info == BTUSB_IGNORE)
4052 return -ENODEV;
4053
4054 if (id->driver_info & BTUSB_ATH3012) {
4055 struct usb_device *udev = interface_to_usbdev(intf);
4056
4057 /* Old firmware would otherwise let ath3k driver load
4058 * patch and sysconfig files
4059 */
4060 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4061 !btusb_qca_need_patch(udev))
4062 return -ENODEV;
4063 }
4064
4065 data = kzalloc_obj(*data);
4066 if (!data)
4067 return -ENOMEM;
4068
4069 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4070 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4071
4072 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4073 data->intr_ep = ep_desc;
4074 continue;
4075 }
4076
4077 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4078 data->bulk_tx_ep = ep_desc;
4079 continue;
4080 }
4081
4082 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4083 data->bulk_rx_ep = ep_desc;
4084 continue;
4085 }
4086 }
4087
4088 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
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