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