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