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