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Bluetooth: hidp: buffer overflow in hidp_process_report
[linux-block.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
1fdb9269 24#include <linux/dmi.h>
5e23b923 25#include <linux/module.h>
5e23b923 26#include <linux/usb.h>
61f5acea 27#include <linux/usb/quirks.h>
dffd30ee 28#include <linux/firmware.h>
fd913ef7
RJ		 29#include <linux/of_device.h>
30#include <linux/of_irq.h>
017789f3 31#include <linux/suspend.h>
a2698a9b 32#include <asm/unaligned.h>
5e23b923
MH		 33
34#include <net/bluetooth/bluetooth.h>
35#include <net/bluetooth/hci_core.h>
36
4185a0f5 37#include "btintel.h"
1df1f591 38#include "btbcm.h"
db33c77d 39#include "btrtl.h"
1df1f591 40
34dced9b 41#define VERSION "0.8"
cfeb4145 42
90ab5ee9
RR		 43static bool disable_scofix;
44static bool force_scofix;
eff2d68c 45static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
7a9d4020 46
917a3337 47static bool reset = true;
cfeb4145
MH		 48
49static struct usb_driver btusb_driver;
50
51#define BTUSB_IGNORE 0x01
7a9d4020
MH		 52#define BTUSB_DIGIANSWER 0x02
53#define BTUSB_CSR 0x04
54#define BTUSB_SNIFFER 0x08
55#define BTUSB_BCM92035 0x10
56#define BTUSB_BROKEN_ISOC 0x20
57#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 58#define BTUSB_ATH3012 0x80
dffd30ee 59#define BTUSB_INTEL 0x100
40df783d
MH		 60#define BTUSB_INTEL_BOOT 0x200
61#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 62#define BTUSB_MARVELL 0x800
4fcef8ed 63#define BTUSB_SWAVE 0x1000
cda0dd78 64#define BTUSB_INTEL_NEW 0x2000
893ba544 65#define BTUSB_AMP 0x4000
3267c884 66#define BTUSB_QCA_ROME 0x8000
17b2772b 67#define BTUSB_BCM_APPLE 0x10000
a2698a9b 68#define BTUSB_REALTEK 0x20000
6c9d435d 69#define BTUSB_BCM2045 0x40000
22f8e9db 70#define BTUSB_IFNUM_2 0x80000
418678b0 71#define BTUSB_CW6622 0x100000
5e23b923 72
54265202 73static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 74 /* Generic Bluetooth USB device */
75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
76
893ba544
MH		 77 /* Generic Bluetooth AMP device */
78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
79
d63b2826
DD		 80 /* Generic Bluetooth USB interface */
81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
82
1fa6535f 83 /* Apple-specific (Broadcom) devices */
17b2772b 84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 86
178c059e
CYC		 87 /* MediaTek MT76x0E */
88 { USB_DEVICE(0x0e8d, 0x763f) },
89
c510eae3 90 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 91 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 92
3cd01976
NI		 93 /* Apple MacBookPro 7,1 */
94 { USB_DEVICE(0x05ac, 0x8213) },
95
0a79f674
CL		 96 /* Apple iMac11,1 */
97 { USB_DEVICE(0x05ac, 0x8215) },
98
9c047157
NI		 99 /* Apple MacBookPro6,2 */
100 { USB_DEVICE(0x05ac, 0x8218) },
101
3e3ede7d
EH		 102 /* Apple MacBookAir3,1, MacBookAir3,2 */
103 { USB_DEVICE(0x05ac, 0x821b) },
104
a63b723d
PAVM		 105 /* Apple MacBookAir4,1 */
106 { USB_DEVICE(0x05ac, 0x821f) },
107
88d377b6
MAP		 108 /* Apple MacBookPro8,2 */
109 { USB_DEVICE(0x05ac, 0x821a) },
110
f78b6826
JK		 111 /* Apple MacMini5,1 */
112 { USB_DEVICE(0x05ac, 0x8281) },
113
cfeb4145 114 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 116
117 /* Bluetooth Ultraport Module from IBM */
118 { USB_DEVICE(0x04bf, 0x030a) },
119
120 /* ALPS Modules with non-standard id */
121 { USB_DEVICE(0x044e, 0x3001) },
122 { USB_DEVICE(0x044e, 0x3002) },
123
124 /* Ericsson with non-standard id */
125 { USB_DEVICE(0x0bdb, 0x1002) },
126
127 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 128 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 129
d13431ca
WJS		 130 /* Broadcom BCM20702A0 */
131 { USB_DEVICE(0x413c, 0x8197) },
132
d049f4e5
MH		 133 /* Broadcom BCM20702B0 (Dynex/Insignia) */
134 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
135
2faf71ce 136 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
628c26b4
DT		 137 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
2faf71ce 139
a57bac43
CH		 140 /* Broadcom BCM920703 (HTC Vive) */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
98514036 144 /* Foxconn - Hon Hai */
6029ddc2
HS		 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 147
8f0c304c
MD		 148 /* Lite-On Technology - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
0b880062 152 /* Broadcom devices with vendor specific id */
10d4c673
PG		 153 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 155
c2aef6e8 156 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 157 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 159
5bcecf32 160 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 161 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 163
9113bfd8 164 /* IMC Networks - Broadcom based */
6331c686
MH		 165 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 167
fdfddc60
WJS		 168 /* Dell Computer - Broadcom based */
169 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
170 .driver_info = BTUSB_BCM_PATCHRAM },
171
1623d0bf
DT		 172 /* Toshiba Corp - Broadcom based */
173 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
174 .driver_info = BTUSB_BCM_PATCHRAM },
175
40df783d 176 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 177 { USB_DEVICE(0x8087, 0x0a5a),
178 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 179
5e23b923
MH		 180 { } /* Terminating entry */
181};
182
183MODULE_DEVICE_TABLE(usb, btusb_table);
184
54265202 185static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 186 /* CSR BlueCore devices */
187 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
188
189 /* Broadcom BCM2033 without firmware */
190 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
191
6c9d435d
MH		 192 /* Broadcom BCM2045 devices */
193 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
194
be93112a 195 /* Atheros 3011 with sflash firmware */
0b880062
AS		 196 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
197 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 198 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 199 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 200 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 201 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 202 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 203
509e7861
CYC		 204 /* Atheros AR9285 Malbec with sflash firmware */
205 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
206
d9f51b51 207 /* Atheros 3012 with sflash firmware */
0b880062
AS		 208 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 213 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 214 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8 215 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 216 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 220 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 221 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 223 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 224 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 225 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 226 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d 227 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062 228 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 229 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 230 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 231 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 232 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 233 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
544a5916 234 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 235 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 236 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 237 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 238 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 239 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 240 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 241 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 242 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 243 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 244 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 245 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 246 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 248 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 249 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 250 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 251 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 252 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 253 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 254 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 255 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5 256 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896 257 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51 258
e9036e33
CYC		 259 /* Atheros AR5BBU12 with sflash firmware */
260 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
261
85d59726 262 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 263 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 264 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 265
3267c884 266 /* QCA ROME chipset */
2054111b 267 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
93519934 268 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
e5a49ee9 269 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
c9e44474 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
1eef1c35 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
c9e44474 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
47ca5898 273 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
858ff38a 274 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
06e41d8a 275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
1144a4ee 276 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
0a03f98b 277 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
d829b9e2 278 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
d666fc54 279 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
df2445bf 280 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
3267c884 281
cfeb4145 282 /* Broadcom BCM2035 */
7a9d4020 283 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 284 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
285 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 286
287 /* Broadcom BCM2045 */
7a9d4020
MH		 288 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
289 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 290
cfeb4145 291 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 292 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
293 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 294
295 /* HP laptop with Broadcom chip */
7a9d4020 296 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 297
298 /* Dell laptop with Broadcom chip */
7a9d4020 299 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 300
5ddd4a60 301 /* Dell Wireless 370 and 410 devices */
7a9d4020 302 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 303 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 304
7a9d4020
MH		 305 /* Belkin F8T012 and F8T013 devices */
306 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
307 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 308
5ddd4a60
MH		 309 /* Asus WL-BTD202 device */
310 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
311
312 /* Kensington Bluetooth USB adapter */
313 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
314
cfeb4145
MH		 315 /* RTX Telecom based adapters with buggy SCO support */
316 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
317 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
318
319 /* CONWISE Technology based adapters with buggy SCO support */
418678b0
SJ		 320 { USB_DEVICE(0x0e5e, 0x6622),
321 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
cfeb4145 322
4fcef8ed 323 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 324 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 325
cfeb4145
MH		 326 /* Digianswer devices */
327 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
328 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
329
330 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 331 { USB_DEVICE(0x0a12, 0x0002),
332 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 333
334 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 335 { USB_DEVICE(0x16d3, 0x0002),
336 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 337
cb1ee89f
MH		 338 /* Marvell Bluetooth devices */
339 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
340 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
1165df0e 341 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
cb1ee89f 342
d0ac9eb7 343 /* Intel Bluetooth devices */
de766142 344 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
1ce0cec1 345 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
407550fe 346 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 347 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 348 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 349 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
439e65d3 350 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
86a6129a 351 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 352
d0ac9eb7
MH		 353 /* Other Intel Bluetooth devices */
354 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
355 .driver_info = BTUSB_IGNORE },
ae8df494 356
a2698a9b
DD		 357 /* Realtek Bluetooth devices */
358 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
359 .driver_info = BTUSB_REALTEK },
360
361 /* Additional Realtek 8723AE Bluetooth devices */
362 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
363 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
364
365 /* Additional Realtek 8723BE Bluetooth devices */
366 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
368 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
369 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
370 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
a81d72d2 371 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
a2698a9b 372
a41e0796
VB		 373 /* Additional Realtek 8723BU Bluetooth devices */
374 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
375
66d9975c 376 /* Additional Realtek 8723DE Bluetooth devices */
45ae68b8 377 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
66d9975c
JHP		 378 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
379
a2698a9b
DD		 380 /* Additional Realtek 8821AE Bluetooth devices */
381 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
382 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
383 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
384 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
385 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
386
fed03fe7 387 /* Additional Realtek 8822BE Bluetooth devices */
1cd2fabf 388 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
fed03fe7
LF		 389 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
390
4481c076
PP		 391 /* Silicon Wave based devices */
392 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
393
5e23b923
MH		 394 { } /* Terminating entry */
395};
396
1fdb9269
HG		 397/* The Bluetooth USB module build into some devices needs to be reset on resume,
398 * this is a problem with the platform (likely shutting off all power) not with
399 * the module itself. So we use a DMI list to match known broken platforms.
400 */
401static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
402 {
0c6e5266 403 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
1fdb9269 404 .matches = {
0c6e5266
KHF		 405 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
406 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
1fdb9269
HG		 407 },
408 },
596b07a9
HG		 409 {
410 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
411 .matches = {
412 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
413 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
414 },
415 },
939bc6c5
HG		 416 {
417 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
418 .matches = {
419 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
420 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
421 },
422 },
1fdb9269
HG		 423 {}
424};
425
9bfa35fe
MH		 426#define BTUSB_MAX_ISOC_FRAMES 10
427
5e23b923
MH		 428#define BTUSB_INTR_RUNNING 0
429#define BTUSB_BULK_RUNNING 1
9bfa35fe 430#define BTUSB_ISOC_RUNNING 2
7bee549e 431#define BTUSB_SUSPENDING 3
08b8b6c4 432#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 433#define BTUSB_BOOTLOADER 5
434#define BTUSB_DOWNLOADING 6
ce6bb929 435#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 436#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 437#define BTUSB_BOOTING 9
61f5acea
HG		 438#define BTUSB_DIAG_RUNNING 10
439#define BTUSB_OOB_WAKE_ENABLED 11
5e23b923
MH		 440
441struct btusb_data {
442 struct hci_dev *hdev;
443 struct usb_device *udev;
5fbcd260 444 struct usb_interface *intf;
9bfa35fe 445 struct usb_interface *isoc;
9d08f504 446 struct usb_interface *diag;
459232fc 447 unsigned isoc_ifnum;
5e23b923 448
5e23b923
MH		 449 unsigned long flags;
450
451 struct work_struct work;
7bee549e 452 struct work_struct waker;
5e23b923 453
803b5836 454 struct usb_anchor deferred;
5e23b923 455 struct usb_anchor tx_anchor;
803b5836
MH		 456 int tx_in_flight;
457 spinlock_t txlock;
458
5e23b923
MH		 459 struct usb_anchor intr_anchor;
460 struct usb_anchor bulk_anchor;
9bfa35fe 461 struct usb_anchor isoc_anchor;
9d08f504 462 struct usb_anchor diag_anchor;
803b5836
MH		 463 spinlock_t rxlock;
464
465 struct sk_buff *evt_skb;
466 struct sk_buff *acl_skb;
467 struct sk_buff *sco_skb;
5e23b923
MH		 468
469 struct usb_endpoint_descriptor *intr_ep;
470 struct usb_endpoint_descriptor *bulk_tx_ep;
471 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 472 struct usb_endpoint_descriptor *isoc_tx_ep;
473 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 474 struct usb_endpoint_descriptor *diag_tx_ep;
475 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 476
7a9d4020 477 __u8 cmdreq_type;
893ba544 478 __u8 cmdreq;
7a9d4020 479
43c2e57f 480 unsigned int sco_num;
9bfa35fe 481 int isoc_altsetting;
6a88adf2 482 int suspend_count;
2cbd3f5c 483
97307f51 484 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 485 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 486
487 int (*setup_on_usb)(struct hci_dev *hdev);
fd913ef7
RJ		 488
489 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
5e23b923
MH		 490};
491
803b5836
MH		 492static inline void btusb_free_frags(struct btusb_data *data)
493{
494 unsigned long flags;
495
496 spin_lock_irqsave(&data->rxlock, flags);
497
498 kfree_skb(data->evt_skb);
499 data->evt_skb = NULL;
500
501 kfree_skb(data->acl_skb);
502 data->acl_skb = NULL;
503
504 kfree_skb(data->sco_skb);
505 data->sco_skb = NULL;
506
507 spin_unlock_irqrestore(&data->rxlock, flags);
508}
509
1ffa4ad0
MH		 510static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
511{
803b5836 512 struct sk_buff *skb;
a5e50d5b 513 unsigned long flags;
803b5836
MH		 514 int err = 0;
515
a5e50d5b 516 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 517 skb = data->evt_skb;
518
519 while (count) {
520 int len;
521
522 if (!skb) {
523 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
524 if (!skb) {
525 err = -ENOMEM;
526 break;
527 }
528
618e8bc2
MH		 529 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
530 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 531 }
532
618e8bc2 533 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 534 skb_put_data(skb, buffer, len);
803b5836
MH		 535
536 count -= len;
537 buffer += len;
618e8bc2 538 hci_skb_expect(skb) -= len;
803b5836
MH		 539
540 if (skb->len == HCI_EVENT_HDR_SIZE) {
541 /* Complete event header */
618e8bc2 542 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 543
618e8bc2 544 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 545 kfree_skb(skb);
546 skb = NULL;
547
548 err = -EILSEQ;
549 break;
550 }
551 }
552
618e8bc2 553 if (!hci_skb_expect(skb)) {
803b5836 554 /* Complete frame */
97307f51 555 data->recv_event(data->hdev, skb);
803b5836
MH		 556 skb = NULL;
557 }
558 }
559
560 data->evt_skb = skb;
a5e50d5b 561 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 562
563 return err;
1ffa4ad0
MH		 564}
565
566static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
567{
803b5836 568 struct sk_buff *skb;
a5e50d5b 569 unsigned long flags;
803b5836
MH		 570 int err = 0;
571
a5e50d5b 572 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 573 skb = data->acl_skb;
574
575 while (count) {
576 int len;
577
578 if (!skb) {
579 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
580 if (!skb) {
581 err = -ENOMEM;
582 break;
583 }
584
618e8bc2
MH		 585 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
586 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 587 }
588
618e8bc2 589 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 590 skb_put_data(skb, buffer, len);
803b5836
MH		 591
592 count -= len;
593 buffer += len;
618e8bc2 594 hci_skb_expect(skb) -= len;
803b5836
MH		 595
596 if (skb->len == HCI_ACL_HDR_SIZE) {
597 __le16 dlen = hci_acl_hdr(skb)->dlen;
598
599 /* Complete ACL header */
618e8bc2 600 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 601
618e8bc2 602 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 603 kfree_skb(skb);
604 skb = NULL;
605
606 err = -EILSEQ;
607 break;
608 }
609 }
610
618e8bc2 611 if (!hci_skb_expect(skb)) {
803b5836
MH		 612 /* Complete frame */
613 hci_recv_frame(data->hdev, skb);
614 skb = NULL;
615 }
616 }
617
618 data->acl_skb = skb;
a5e50d5b 619 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 620
621 return err;
1ffa4ad0
MH		 622}
623
624static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
625{
803b5836 626 struct sk_buff *skb;
a5e50d5b 627 unsigned long flags;
803b5836
MH		 628 int err = 0;
629
a5e50d5b 630 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 631 skb = data->sco_skb;
632
633 while (count) {
634 int len;
635
636 if (!skb) {
637 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
638 if (!skb) {
639 err = -ENOMEM;
640 break;
641 }
642
618e8bc2
MH		 643 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
644 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 645 }
646
618e8bc2 647 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 648 skb_put_data(skb, buffer, len);
803b5836
MH		 649
650 count -= len;
651 buffer += len;
618e8bc2 652 hci_skb_expect(skb) -= len;
803b5836
MH		 653
654 if (skb->len == HCI_SCO_HDR_SIZE) {
655 /* Complete SCO header */
618e8bc2 656 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 657
618e8bc2 658 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 659 kfree_skb(skb);
660 skb = NULL;
661
662 err = -EILSEQ;
663 break;
664 }
665 }
666
618e8bc2 667 if (!hci_skb_expect(skb)) {
803b5836
MH		 668 /* Complete frame */
669 hci_recv_frame(data->hdev, skb);
670 skb = NULL;
671 }
672 }
673
674 data->sco_skb = skb;
a5e50d5b 675 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 676
677 return err;
1ffa4ad0
MH		 678}
679
5e23b923
MH		 680static void btusb_intr_complete(struct urb *urb)
681{
682 struct hci_dev *hdev = urb->context;
155961e8 683 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 684 int err;
685
89e7533d
MH		 686 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
687 urb->actual_length);
5e23b923
MH		 688
689 if (!test_bit(HCI_RUNNING, &hdev->flags))
690 return;
691
692 if (urb->status == 0) {
9bfa35fe
MH		 693 hdev->stat.byte_rx += urb->actual_length;
694
1ffa4ad0
MH		 695 if (btusb_recv_intr(data, urb->transfer_buffer,
696 urb->actual_length) < 0) {
2064ee33 697 bt_dev_err(hdev, "corrupted event packet");
5e23b923
MH		 698 hdev->stat.err_rx++;
699 }
85560c4a
CC		 700 } else if (urb->status == -ENOENT) {
701 /* Avoid suspend failed when usb_kill_urb */
702 return;
5e23b923
MH		 703 }
704
705 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
706 return;
707
7bee549e 708 usb_mark_last_busy(data->udev);
5e23b923
MH		 709 usb_anchor_urb(urb, &data->intr_anchor);
710
711 err = usb_submit_urb(urb, GFP_ATOMIC);
712 if (err < 0) {
4935f1c1 713 /* -EPERM: urb is being killed;
d98422cb
DR		 714 * -ENODEV: device got disconnected
715 */
4935f1c1 716 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 717 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
718 urb, -err);
5e23b923
MH		 719 usb_unanchor_urb(urb);
720 }
721}
722
2eda66f4 723static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 724{
155961e8 725 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 726 struct urb *urb;
727 unsigned char *buf;
728 unsigned int pipe;
729 int err, size;
730
731 BT_DBG("%s", hdev->name);
732
9bfa35fe
MH		 733 if (!data->intr_ep)
734 return -ENODEV;
735
2eda66f4 736 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 737 if (!urb)
738 return -ENOMEM;
739
740 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
741
2eda66f4 742 buf = kmalloc(size, mem_flags);
5e23b923
MH		 743 if (!buf) {
744 usb_free_urb(urb);
745 return -ENOMEM;
746 }
747
748 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
749
750 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 751 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 752
753 urb->transfer_flags |= URB_FREE_BUFFER;
754
755 usb_anchor_urb(urb, &data->intr_anchor);
756
2eda66f4 757 err = usb_submit_urb(urb, mem_flags);
5e23b923 758 if (err < 0) {
d4b8d1c9 759 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 760 bt_dev_err(hdev, "urb %p submission failed (%d)",
761 urb, -err);
5e23b923 762 usb_unanchor_urb(urb);
5e23b923
MH		 763 }
764
765 usb_free_urb(urb);
766
767 return err;
768}
769
770static void btusb_bulk_complete(struct urb *urb)
771{
772 struct hci_dev *hdev = urb->context;
155961e8 773 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 774 int err;
775
89e7533d
MH		 776 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
777 urb->actual_length);
5e23b923
MH		 778
779 if (!test_bit(HCI_RUNNING, &hdev->flags))
780 return;
781
782 if (urb->status == 0) {
9bfa35fe
MH		 783 hdev->stat.byte_rx += urb->actual_length;
784
2cbd3f5c 785 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 786 urb->actual_length) < 0) {
2064ee33 787 bt_dev_err(hdev, "corrupted ACL packet");
5e23b923
MH		 788 hdev->stat.err_rx++;
789 }
85560c4a
CC		 790 } else if (urb->status == -ENOENT) {
791 /* Avoid suspend failed when usb_kill_urb */
792 return;
5e23b923
MH		 793 }
794
795 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
796 return;
797
798 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 799 usb_mark_last_busy(data->udev);
5e23b923
MH		 800
801 err = usb_submit_urb(urb, GFP_ATOMIC);
802 if (err < 0) {
4935f1c1 803 /* -EPERM: urb is being killed;
d98422cb
DR		 804 * -ENODEV: device got disconnected
805 */
4935f1c1 806 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 807 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
808 urb, -err);
5e23b923
MH		 809 usb_unanchor_urb(urb);
810 }
811}
812
2eda66f4 813static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 814{
155961e8 815 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 816 struct urb *urb;
817 unsigned char *buf;
818 unsigned int pipe;
290ba200 819 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 820
821 BT_DBG("%s", hdev->name);
822
9bfa35fe
MH		 823 if (!data->bulk_rx_ep)
824 return -ENODEV;
825
2eda66f4 826 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 827 if (!urb)
828 return -ENOMEM;
829
2eda66f4 830 buf = kmalloc(size, mem_flags);
5e23b923
MH		 831 if (!buf) {
832 usb_free_urb(urb);
833 return -ENOMEM;
834 }
835
836 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
837
89e7533d
MH		 838 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
839 btusb_bulk_complete, hdev);
5e23b923
MH		 840
841 urb->transfer_flags |= URB_FREE_BUFFER;
842
7bee549e 843 usb_mark_last_busy(data->udev);
5e23b923
MH		 844 usb_anchor_urb(urb, &data->bulk_anchor);
845
2eda66f4 846 err = usb_submit_urb(urb, mem_flags);
5e23b923 847 if (err < 0) {
d4b8d1c9 848 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 849 bt_dev_err(hdev, "urb %p submission failed (%d)",
850 urb, -err);
5e23b923 851 usb_unanchor_urb(urb);
5e23b923
MH		 852 }
853
854 usb_free_urb(urb);
855
856 return err;
857}
858
9bfa35fe
MH		 859static void btusb_isoc_complete(struct urb *urb)
860{
861 struct hci_dev *hdev = urb->context;
155961e8 862 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 863 int i, err;
864
89e7533d
MH		 865 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
866 urb->actual_length);
9bfa35fe
MH		 867
868 if (!test_bit(HCI_RUNNING, &hdev->flags))
869 return;
870
871 if (urb->status == 0) {
872 for (i = 0; i < urb->number_of_packets; i++) {
873 unsigned int offset = urb->iso_frame_desc[i].offset;
874 unsigned int length = urb->iso_frame_desc[i].actual_length;
875
876 if (urb->iso_frame_desc[i].status)
877 continue;
878
879 hdev->stat.byte_rx += length;
880
1ffa4ad0
MH		 881 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
882 length) < 0) {
2064ee33 883 bt_dev_err(hdev, "corrupted SCO packet");
9bfa35fe
MH		 884 hdev->stat.err_rx++;
885 }
886 }
85560c4a
CC		 887 } else if (urb->status == -ENOENT) {
888 /* Avoid suspend failed when usb_kill_urb */
889 return;
9bfa35fe
MH		 890 }
891
892 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
893 return;
894
895 usb_anchor_urb(urb, &data->isoc_anchor);
896
897 err = usb_submit_urb(urb, GFP_ATOMIC);
898 if (err < 0) {
4935f1c1 899 /* -EPERM: urb is being killed;
d98422cb
DR		 900 * -ENODEV: device got disconnected
901 */
4935f1c1 902 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 903 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
904 urb, -err);
9bfa35fe
MH		 905 usb_unanchor_urb(urb);
906 }
907}
908
42b16b3f 909static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 910{
911 int i, offset = 0;
912
913 BT_DBG("len %d mtu %d", len, mtu);
914
915 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
916 i++, offset += mtu, len -= mtu) {
917 urb->iso_frame_desc[i].offset = offset;
918 urb->iso_frame_desc[i].length = mtu;
919 }
920
921 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
922 urb->iso_frame_desc[i].offset = offset;
923 urb->iso_frame_desc[i].length = len;
924 i++;
925 }
926
927 urb->number_of_packets = i;
928}
929
2eda66f4 930static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 931{
155961e8 932 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 933 struct urb *urb;
934 unsigned char *buf;
935 unsigned int pipe;
936 int err, size;
937
938 BT_DBG("%s", hdev->name);
939
940 if (!data->isoc_rx_ep)
941 return -ENODEV;
942
2eda66f4 943 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 944 if (!urb)
945 return -ENOMEM;
946
947 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
948 BTUSB_MAX_ISOC_FRAMES;
949
2eda66f4 950 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 951 if (!buf) {
952 usb_free_urb(urb);
953 return -ENOMEM;
954 }
955
956 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
957
fa0fb93f 958 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 959 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 960
89e7533d 961 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 962
963 __fill_isoc_descriptor(urb, size,
89e7533d 964 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 965
966 usb_anchor_urb(urb, &data->isoc_anchor);
967
2eda66f4 968 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 969 if (err < 0) {
d4b8d1c9 970 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 971 bt_dev_err(hdev, "urb %p submission failed (%d)",
972 urb, -err);
9bfa35fe 973 usb_unanchor_urb(urb);
9bfa35fe
MH		 974 }
975
976 usb_free_urb(urb);
977
978 return err;
979}
980
9d08f504
MH		 981static void btusb_diag_complete(struct urb *urb)
982{
983 struct hci_dev *hdev = urb->context;
984 struct btusb_data *data = hci_get_drvdata(hdev);
985 int err;
986
987 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
988 urb->actual_length);
989
990 if (urb->status == 0) {
991 struct sk_buff *skb;
992
993 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
994 if (skb) {
59ae1d12
JB		 995 skb_put_data(skb, urb->transfer_buffer,
996 urb->actual_length);
9d08f504
MH		 997 hci_recv_diag(hdev, skb);
998 }
999 } else if (urb->status == -ENOENT) {
1000 /* Avoid suspend failed when usb_kill_urb */
1001 return;
1002 }
1003
1004 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1005 return;
1006
1007 usb_anchor_urb(urb, &data->diag_anchor);
1008 usb_mark_last_busy(data->udev);
1009
1010 err = usb_submit_urb(urb, GFP_ATOMIC);
1011 if (err < 0) {
1012 /* -EPERM: urb is being killed;
d98422cb
DR		 1013 * -ENODEV: device got disconnected
1014 */
9d08f504 1015 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1016 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1017 urb, -err);
9d08f504
MH		 1018 usb_unanchor_urb(urb);
1019 }
1020}
1021
1022static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1023{
1024 struct btusb_data *data = hci_get_drvdata(hdev);
1025 struct urb *urb;
1026 unsigned char *buf;
1027 unsigned int pipe;
1028 int err, size = HCI_MAX_FRAME_SIZE;
1029
1030 BT_DBG("%s", hdev->name);
1031
1032 if (!data->diag_rx_ep)
1033 return -ENODEV;
1034
1035 urb = usb_alloc_urb(0, mem_flags);
1036 if (!urb)
1037 return -ENOMEM;
1038
1039 buf = kmalloc(size, mem_flags);
1040 if (!buf) {
1041 usb_free_urb(urb);
1042 return -ENOMEM;
1043 }
1044
1045 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1046
1047 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1048 btusb_diag_complete, hdev);
1049
1050 urb->transfer_flags |= URB_FREE_BUFFER;
1051
1052 usb_mark_last_busy(data->udev);
1053 usb_anchor_urb(urb, &data->diag_anchor);
1054
1055 err = usb_submit_urb(urb, mem_flags);
1056 if (err < 0) {
1057 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1058 bt_dev_err(hdev, "urb %p submission failed (%d)",
1059 urb, -err);
9d08f504
MH		 1060 usb_unanchor_urb(urb);
1061 }
1062
1063 usb_free_urb(urb);
1064
1065 return err;
1066}
1067
5e23b923 1068static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 1069{
1070 struct sk_buff *skb = urb->context;
89e7533d 1071 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 1072 struct btusb_data *data = hci_get_drvdata(hdev);
a5e50d5b 1073 unsigned long flags;
7bee549e 1074
89e7533d
MH		 1075 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1076 urb->actual_length);
7bee549e
ON		 1077
1078 if (!test_bit(HCI_RUNNING, &hdev->flags))
1079 goto done;
1080
1081 if (!urb->status)
1082 hdev->stat.byte_tx += urb->transfer_buffer_length;
1083 else
1084 hdev->stat.err_tx++;
1085
1086done:
a5e50d5b 1087 spin_lock_irqsave(&data->txlock, flags);
7bee549e 1088 data->tx_in_flight--;
a5e50d5b 1089 spin_unlock_irqrestore(&data->txlock, flags);
7bee549e
ON		 1090
1091 kfree(urb->setup_packet);
1092
1093 kfree_skb(skb);
1094}
1095
1096static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1097{
1098 struct sk_buff *skb = urb->context;
89e7533d 1099 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1100
89e7533d
MH		 1101 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1102 urb->actual_length);
5e23b923
MH		 1103
1104 if (!test_bit(HCI_RUNNING, &hdev->flags))
1105 goto done;
1106
1107 if (!urb->status)
1108 hdev->stat.byte_tx += urb->transfer_buffer_length;
1109 else
1110 hdev->stat.err_tx++;
1111
1112done:
1113 kfree(urb->setup_packet);
1114
1115 kfree_skb(skb);
1116}
1117
1118static int btusb_open(struct hci_dev *hdev)
1119{
155961e8 1120 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1121 int err;
1122
1123 BT_DBG("%s", hdev->name);
1124
c7e163fe
EH		 1125 err = usb_autopm_get_interface(data->intf);
1126 if (err < 0)
1127 return err;
1128
ace31982
KBYT		 1129 /* Patching USB firmware files prior to starting any URBs of HCI path
1130 * It is more safe to use USB bulk channel for downloading USB patch
1131 */
1132 if (data->setup_on_usb) {
1133 err = data->setup_on_usb(hdev);
eb50042f 1134 if (err < 0)
ace31982
KBYT		 1135 return err;
1136 }
1137
7bee549e 1138 data->intf->needs_remote_wakeup = 1;
a0085f25
SG		 1139 /* device specific wakeup source enabled and required for USB
1140 * remote wakeup while host is suspended
1141 */
1142 device_wakeup_enable(&data->udev->dev);
7bee549e 1143
5e23b923 1144 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1145 goto done;
5e23b923 1146
2eda66f4 1147 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1148 if (err < 0)
1149 goto failed;
1150
1151 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1152 if (err < 0) {
43c2e57f
MH		 1153 usb_kill_anchored_urbs(&data->intr_anchor);
1154 goto failed;
5e23b923
MH		 1155 }
1156
43c2e57f
MH		 1157 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1158 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1159
9d08f504
MH		 1160 if (data->diag) {
1161 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1162 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1163 }
1164
7bee549e
ON		 1165done:
1166 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1167 return 0;
1168
1169failed:
1170 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1171 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1172 return err;
1173}
1174
7bee549e
ON		 1175static void btusb_stop_traffic(struct btusb_data *data)
1176{
1177 usb_kill_anchored_urbs(&data->intr_anchor);
1178 usb_kill_anchored_urbs(&data->bulk_anchor);
1179 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1180 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1181}
1182
5e23b923
MH		 1183static int btusb_close(struct hci_dev *hdev)
1184{
155961e8 1185 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1186 int err;
5e23b923
MH		 1187
1188 BT_DBG("%s", hdev->name);
1189
e8c3c3d2 1190 cancel_work_sync(&data->work);
404291ac 1191 cancel_work_sync(&data->waker);
e8c3c3d2 1192
9bfa35fe 1193 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1194 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1195 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1196 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1197
1198 btusb_stop_traffic(data);
803b5836
MH		 1199 btusb_free_frags(data);
1200
7bee549e
ON		 1201 err = usb_autopm_get_interface(data->intf);
1202 if (err < 0)
7b8e2c1d 1203 goto failed;
7bee549e
ON		 1204
1205 data->intf->needs_remote_wakeup = 0;
a0085f25 1206 device_wakeup_disable(&data->udev->dev);
7bee549e 1207 usb_autopm_put_interface(data->intf);
5e23b923 1208
7b8e2c1d
ON		 1209failed:
1210 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1211 return 0;
1212}
1213
1214static int btusb_flush(struct hci_dev *hdev)
1215{
155961e8 1216 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1217
1218 BT_DBG("%s", hdev->name);
1219
1220 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1221 btusb_free_frags(data);
5e23b923
MH		 1222
1223 return 0;
1224}
1225
047b2ec8 1226static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1227{
155961e8 1228 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1229 struct usb_ctrlrequest *dr;
1230 struct urb *urb;
1231 unsigned int pipe;
5e23b923 1232
047b2ec8
MH		 1233 urb = usb_alloc_urb(0, GFP_KERNEL);
1234 if (!urb)
1235 return ERR_PTR(-ENOMEM);
5e23b923 1236
047b2ec8
MH		 1237 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1238 if (!dr) {
1239 usb_free_urb(urb);
1240 return ERR_PTR(-ENOMEM);
1241 }
5e23b923 1242
047b2ec8 1243 dr->bRequestType = data->cmdreq_type;
893ba544 1244 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1245 dr->wIndex = 0;
1246 dr->wValue = 0;
1247 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1248
047b2ec8 1249 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1250
89e7533d 1251 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1252 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1253
89e7533d 1254 skb->dev = (void *)hdev;
5e23b923 1255
047b2ec8
MH		 1256 return urb;
1257}
5e23b923 1258
047b2ec8
MH		 1259static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1260{
1261 struct btusb_data *data = hci_get_drvdata(hdev);
1262 struct urb *urb;
1263 unsigned int pipe;
5e23b923 1264
047b2ec8
MH		 1265 if (!data->bulk_tx_ep)
1266 return ERR_PTR(-ENODEV);
9bfa35fe 1267
047b2ec8
MH		 1268 urb = usb_alloc_urb(0, GFP_KERNEL);
1269 if (!urb)
1270 return ERR_PTR(-ENOMEM);
5e23b923 1271
047b2ec8 1272 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1273
047b2ec8
MH		 1274 usb_fill_bulk_urb(urb, data->udev, pipe,
1275 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1276
89e7533d 1277 skb->dev = (void *)hdev;
5e23b923 1278
047b2ec8
MH		 1279 return urb;
1280}
9bfa35fe 1281
047b2ec8
MH		 1282static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1283{
1284 struct btusb_data *data = hci_get_drvdata(hdev);
1285 struct urb *urb;
1286 unsigned int pipe;
9bfa35fe 1287
047b2ec8
MH		 1288 if (!data->isoc_tx_ep)
1289 return ERR_PTR(-ENODEV);
9bfa35fe 1290
047b2ec8
MH		 1291 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1292 if (!urb)
1293 return ERR_PTR(-ENOMEM);
9bfa35fe 1294
047b2ec8 1295 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1296
047b2ec8
MH		 1297 usb_fill_int_urb(urb, data->udev, pipe,
1298 skb->data, skb->len, btusb_isoc_tx_complete,
1299 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1300
047b2ec8 1301 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1302
047b2ec8
MH		 1303 __fill_isoc_descriptor(urb, skb->len,
1304 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1305
89e7533d 1306 skb->dev = (void *)hdev;
047b2ec8
MH		 1307
1308 return urb;
1309}
1310
1311static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1312{
1313 struct btusb_data *data = hci_get_drvdata(hdev);
1314 int err;
7bee549e 1315
5e23b923
MH		 1316 usb_anchor_urb(urb, &data->tx_anchor);
1317
e9753eff 1318 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1319 if (err < 0) {
5a9b80e2 1320 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1321 bt_dev_err(hdev, "urb %p submission failed (%d)",
1322 urb, -err);
5e23b923
MH		 1323 kfree(urb->setup_packet);
1324 usb_unanchor_urb(urb);
7bee549e
ON		 1325 } else {
1326 usb_mark_last_busy(data->udev);
5e23b923
MH		 1327 }
1328
54a8a79c 1329 usb_free_urb(urb);
5e23b923
MH		 1330 return err;
1331}
1332
047b2ec8
MH		 1333static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1334{
1335 struct btusb_data *data = hci_get_drvdata(hdev);
1336 unsigned long flags;
1337 bool suspending;
1338
1339 spin_lock_irqsave(&data->txlock, flags);
1340 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1341 if (!suspending)
1342 data->tx_in_flight++;
1343 spin_unlock_irqrestore(&data->txlock, flags);
1344
1345 if (!suspending)
1346 return submit_tx_urb(hdev, urb);
1347
1348 usb_anchor_urb(urb, &data->deferred);
1349 schedule_work(&data->waker);
1350
1351 usb_free_urb(urb);
1352 return 0;
1353}
1354
1355static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1356{
1357 struct urb *urb;
1358
1359 BT_DBG("%s", hdev->name);
1360
618e8bc2 1361 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1362 case HCI_COMMAND_PKT:
1363 urb = alloc_ctrl_urb(hdev, skb);
1364 if (IS_ERR(urb))
1365 return PTR_ERR(urb);
1366
1367 hdev->stat.cmd_tx++;
1368 return submit_or_queue_tx_urb(hdev, urb);
1369
1370 case HCI_ACLDATA_PKT:
1371 urb = alloc_bulk_urb(hdev, skb);
1372 if (IS_ERR(urb))
1373 return PTR_ERR(urb);
1374
1375 hdev->stat.acl_tx++;
1376 return submit_or_queue_tx_urb(hdev, urb);
1377
1378 case HCI_SCODATA_PKT:
1379 if (hci_conn_num(hdev, SCO_LINK) < 1)
1380 return -ENODEV;
1381
1382 urb = alloc_isoc_urb(hdev, skb);
1383 if (IS_ERR(urb))
1384 return PTR_ERR(urb);
1385
1386 hdev->stat.sco_tx++;
1387 return submit_tx_urb(hdev, urb);
1388 }
1389
1390 return -EILSEQ;
1391}
1392
5e23b923
MH		 1393static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1394{
155961e8 1395 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1396
1397 BT_DBG("%s evt %d", hdev->name, evt);
1398
014f7bc7
MH		 1399 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1400 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1401 schedule_work(&data->work);
a780efa8 1402 }
5e23b923
MH		 1403}
1404
42b16b3f 1405static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1406{
155961e8 1407 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1408 struct usb_interface *intf = data->isoc;
1409 struct usb_endpoint_descriptor *ep_desc;
1410 int i, err;
1411
1412 if (!data->isoc)
1413 return -ENODEV;
1414
459232fc 1415 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
9bfa35fe 1416 if (err < 0) {
2064ee33 1417 bt_dev_err(hdev, "setting interface failed (%d)", -err);
9bfa35fe
MH		 1418 return err;
1419 }
1420
1421 data->isoc_altsetting = altsetting;
1422
1423 data->isoc_tx_ep = NULL;
1424 data->isoc_rx_ep = NULL;
1425
1426 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1427 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1428
1429 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1430 data->isoc_tx_ep = ep_desc;
1431 continue;
1432 }
1433
1434 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1435 data->isoc_rx_ep = ep_desc;
1436 continue;
1437 }
1438 }
1439
1440 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2064ee33 1441 bt_dev_err(hdev, "invalid SCO descriptors");
9bfa35fe
MH		 1442 return -ENODEV;
1443 }
1444
1445 return 0;
1446}
1447
5e23b923
MH		 1448static void btusb_work(struct work_struct *work)
1449{
1450 struct btusb_data *data = container_of(work, struct btusb_data, work);
1451 struct hci_dev *hdev = data->hdev;
f4001d28 1452 int new_alts;
7bee549e 1453 int err;
5e23b923 1454
014f7bc7 1455 if (data->sco_num > 0) {
08b8b6c4 1456 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1457 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1458 if (err < 0) {
1459 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1460 usb_kill_anchored_urbs(&data->isoc_anchor);
1461 return;
1462 }
1463
08b8b6c4 1464 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1465 }
f4001d28
MA		 1466
1467 if (hdev->voice_setting & 0x0020) {
1468 static const int alts[3] = { 2, 4, 5 };
89e7533d 1469
014f7bc7 1470 new_alts = alts[data->sco_num - 1];
f4001d28 1471 } else {
014f7bc7 1472 new_alts = data->sco_num;
f4001d28
MA		 1473 }
1474
1475 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1476 unsigned long flags;
1477
9bfa35fe
MH		 1478 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1479 usb_kill_anchored_urbs(&data->isoc_anchor);
1480
8f9d02f4
KP		 1481 /* When isochronous alternate setting needs to be
1482 * changed, because SCO connection has been added
1483 * or removed, a packet fragment may be left in the
1484 * reassembling state. This could lead to wrongly
1485 * assembled fragments.
1486 *
1487 * Clear outstanding fragment when selecting a new
1488 * alternate setting.
1489 */
f6fc86f2 1490 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1491 kfree_skb(data->sco_skb);
1492 data->sco_skb = NULL;
f6fc86f2 1493 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1494
f4001d28 1495 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1496 return;
1497 }
1498
1499 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1500 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1501 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1502 else
2eda66f4 1503 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1504 }
1505 } else {
1506 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1507 usb_kill_anchored_urbs(&data->isoc_anchor);
1508
1509 __set_isoc_interface(hdev, 0);
08b8b6c4 1510 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1511 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1512 }
1513}
1514
7bee549e
ON		 1515static void btusb_waker(struct work_struct *work)
1516{
1517 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1518 int err;
1519
1520 err = usb_autopm_get_interface(data->intf);
1521 if (err < 0)
1522 return;
1523
1524 usb_autopm_put_interface(data->intf);
1525}
1526
9f8f962c
MH		 1527static int btusb_setup_bcm92035(struct hci_dev *hdev)
1528{
1529 struct sk_buff *skb;
1530 u8 val = 0x00;
1531
1532 BT_DBG("%s", hdev->name);
1533
1534 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1535 if (IS_ERR(skb))
2064ee33 1536 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
9f8f962c
MH		 1537 else
1538 kfree_skb(skb);
1539
1540 return 0;
1541}
1542
81cac64b
MH		 1543static int btusb_setup_csr(struct hci_dev *hdev)
1544{
1545 struct hci_rp_read_local_version *rp;
1546 struct sk_buff *skb;
81cac64b
MH		 1547
1548 BT_DBG("%s", hdev->name);
1549
7cd84d72
MH		 1550 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1551 HCI_INIT_TIMEOUT);
1552 if (IS_ERR(skb)) {
1553 int err = PTR_ERR(skb);
2064ee33 1554 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
7cd84d72
MH		 1555 return err;
1556 }
1557
1558 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33 1559 bt_dev_err(hdev, "CSR: Local version length mismatch");
7cd84d72
MH		 1560 kfree_skb(skb);
1561 return -EIO;
1562 }
81cac64b 1563
89e7533d 1564 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1565
6cafcd95
JH		 1566 /* Detect controllers which aren't real CSR ones. */
1567 if (le16_to_cpu(rp->manufacturer) != 10 ||
1568 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1569 /* Clear the reset quirk since this is not an actual
1570 * early Bluetooth 1.1 device from CSR.
1571 */
1572 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1573
9641d343
MH		 1574 /* These fake CSR controllers have all a broken
1575 * stored link key handling and so just disable it.
1576 */
1577 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1578 }
81cac64b
MH		 1579
1580 kfree_skb(skb);
1581
9641d343 1582 return 0;
81cac64b
MH		 1583}
1584
dffd30ee 1585static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1586 struct intel_version *ver)
dffd30ee
THJA		 1587{
1588 const struct firmware *fw;
1589 char fwname[64];
1590 int ret;
1591
1592 snprintf(fwname, sizeof(fwname),
1593 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1594 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1595 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1596 ver->fw_build_ww, ver->fw_build_yy);
1597
1598 ret = request_firmware(&fw, fwname, &hdev->dev);
1599 if (ret < 0) {
1600 if (ret == -EINVAL) {
1601 BT_ERR("%s Intel firmware file request failed (%d)",
1602 hdev->name, ret);
1603 return NULL;
1604 }
1605
1606 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1607 hdev->name, fwname, ret);
1608
1609 /* If the correct firmware patch file is not found, use the
1610 * default firmware patch file instead
1611 */
1612 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1613 ver->hw_platform, ver->hw_variant);
1614 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1615 BT_ERR("%s failed to open default Intel fw file: %s",
1616 hdev->name, fwname);
1617 return NULL;
1618 }
1619 }
1620
2064ee33 1621 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
dffd30ee
THJA		 1622
1623 return fw;
1624}
1625
1626static int btusb_setup_intel_patching(struct hci_dev *hdev,
1627 const struct firmware *fw,
1628 const u8 **fw_ptr, int *disable_patch)
1629{
1630 struct sk_buff *skb;
1631 struct hci_command_hdr *cmd;
1632 const u8 *cmd_param;
1633 struct hci_event_hdr *evt = NULL;
1634 const u8 *evt_param = NULL;
1635 int remain = fw->size - (*fw_ptr - fw->data);
1636
1637 /* The first byte indicates the types of the patch command or event.
1638 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1639 * in the current firmware buffer doesn't start with 0x01 or
1640 * the size of remain buffer is smaller than HCI command header,
1641 * the firmware file is corrupted and it should stop the patching
1642 * process.
1643 */
1644 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1645 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1646 return -EINVAL;
1647 }
1648 (*fw_ptr)++;
1649 remain--;
1650
1651 cmd = (struct hci_command_hdr *)(*fw_ptr);
1652 *fw_ptr += sizeof(*cmd);
1653 remain -= sizeof(*cmd);
1654
1655 /* Ensure that the remain firmware data is long enough than the length
1656 * of command parameter. If not, the firmware file is corrupted.
1657 */
1658 if (remain < cmd->plen) {
1659 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1660 return -EFAULT;
1661 }
1662
1663 /* If there is a command that loads a patch in the firmware
1664 * file, then enable the patch upon success, otherwise just
1665 * disable the manufacturer mode, for example patch activation
1666 * is not required when the default firmware patch file is used
1667 * because there are no patch data to load.
1668 */
1669 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1670 *disable_patch = 0;
1671
1672 cmd_param = *fw_ptr;
1673 *fw_ptr += cmd->plen;
1674 remain -= cmd->plen;
1675
1676 /* This reads the expected events when the above command is sent to the
1677 * device. Some vendor commands expects more than one events, for
1678 * example command status event followed by vendor specific event.
1679 * For this case, it only keeps the last expected event. so the command
1680 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1681 * last expected event.
1682 */
1683 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1684 (*fw_ptr)++;
1685 remain--;
1686
1687 evt = (struct hci_event_hdr *)(*fw_ptr);
1688 *fw_ptr += sizeof(*evt);
1689 remain -= sizeof(*evt);
1690
1691 if (remain < evt->plen) {
1692 BT_ERR("%s Intel fw corrupted: invalid evt len",
1693 hdev->name);
1694 return -EFAULT;
1695 }
1696
1697 evt_param = *fw_ptr;
1698 *fw_ptr += evt->plen;
1699 remain -= evt->plen;
1700 }
1701
1702 /* Every HCI commands in the firmware file has its correspond event.
1703 * If event is not found or remain is smaller than zero, the firmware
1704 * file is corrupted.
1705 */
1706 if (!evt || !evt_param || remain < 0) {
1707 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1708 return -EFAULT;
1709 }
1710
1711 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1712 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1713 if (IS_ERR(skb)) {
1714 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1715 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1716 return PTR_ERR(skb);
dffd30ee
THJA		 1717 }
1718
1719 /* It ensures that the returned event matches the event data read from
1720 * the firmware file. At fist, it checks the length and then
1721 * the contents of the event.
1722 */
1723 if (skb->len != evt->plen) {
1724 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1725 le16_to_cpu(cmd->opcode));
1726 kfree_skb(skb);
1727 return -EFAULT;
1728 }
1729
1730 if (memcmp(skb->data, evt_param, evt->plen)) {
1731 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1732 hdev->name, le16_to_cpu(cmd->opcode));
1733 kfree_skb(skb);
1734 return -EFAULT;
1735 }
1736 kfree_skb(skb);
1737
1738 return 0;
1739}
1740
1741static int btusb_setup_intel(struct hci_dev *hdev)
1742{
1743 struct sk_buff *skb;
1744 const struct firmware *fw;
1745 const u8 *fw_ptr;
28dc4b92 1746 int disable_patch, err;
6c483de1 1747 struct intel_version ver;
dffd30ee 1748
dffd30ee
THJA		 1749 BT_DBG("%s", hdev->name);
1750
1751 /* The controller has a bug with the first HCI command sent to it
1752 * returning number of completed commands as zero. This would stall the
1753 * command processing in the Bluetooth core.
1754 *
1755 * As a workaround, send HCI Reset command first which will reset the
1756 * number of completed commands and allow normal command processing
1757 * from now on.
1758 */
1759 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1760 if (IS_ERR(skb)) {
1761 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1762 hdev->name, PTR_ERR(skb));
d9c78e97 1763 return PTR_ERR(skb);
dffd30ee
THJA		 1764 }
1765 kfree_skb(skb);
1766
1767 /* Read Intel specific controller version first to allow selection of
1768 * which firmware file to load.
1769 *
1770 * The returned information are hardware variant and revision plus
1771 * firmware variant, revision and build number.
1772 */
6c483de1
LP		 1773 err = btintel_read_version(hdev, &ver);
1774 if (err)
1775 return err;
dffd30ee 1776
2064ee33
MH		 1777 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1778 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1779 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1780 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1781
1782 /* fw_patch_num indicates the version of patch the device currently
1783 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1784 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1785 */
6c483de1 1786 if (ver.fw_patch_num) {
2064ee33
MH		 1787 bt_dev_info(hdev, "Intel device is already patched. "
1788 "patch num: %02x", ver.fw_patch_num);
213445b2 1789 goto complete;
dffd30ee
THJA		 1790 }
1791
1792 /* Opens the firmware patch file based on the firmware version read
1793 * from the controller. If it fails to open the matching firmware
1794 * patch file, it tries to open the default firmware patch file.
1795 * If no patch file is found, allow the device to operate without
1796 * a patch.
1797 */
6c483de1
LP		 1798 fw = btusb_setup_intel_get_fw(hdev, &ver);
1799 if (!fw)
213445b2 1800 goto complete;
dffd30ee
THJA		 1801 fw_ptr = fw->data;
1802
28dc4b92 1803 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1804 * Only while this mode is enabled, the driver can download the
1805 * firmware patch data and configuration parameters.
1806 */
28dc4b92
LP		 1807 err = btintel_enter_mfg(hdev);
1808 if (err) {
dffd30ee 1809 release_firmware(fw);
28dc4b92 1810 return err;
dffd30ee
THJA		 1811 }
1812
dffd30ee
THJA		 1813 disable_patch = 1;
1814
1815 /* The firmware data file consists of list of Intel specific HCI
1816 * commands and its expected events. The first byte indicates the
1817 * type of the message, either HCI command or HCI event.
1818 *
1819 * It reads the command and its expected event from the firmware file,
1820 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1821 * the returned event is compared with the event read from the firmware
1822 * file and it will continue until all the messages are downloaded to
1823 * the controller.
1824 *
1825 * Once the firmware patching is completed successfully,
1826 * the manufacturer mode is disabled with reset and activating the
1827 * downloaded patch.
1828 *
1829 * If the firmware patching fails, the manufacturer mode is
1830 * disabled with reset and deactivating the patch.
1831 *
1832 * If the default patch file is used, no reset is done when disabling
1833 * the manufacturer.
1834 */
1835 while (fw->size > fw_ptr - fw->data) {
1836 int ret;
1837
1838 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1839 &disable_patch);
1840 if (ret < 0)
1841 goto exit_mfg_deactivate;
1842 }
1843
1844 release_firmware(fw);
1845
1846 if (disable_patch)
1847 goto exit_mfg_disable;
1848
1849 /* Patching completed successfully and disable the manufacturer mode
1850 * with reset and activate the downloaded firmware patches.
1851 */
28dc4b92
LP		 1852 err = btintel_exit_mfg(hdev, true, true);
1853 if (err)
1854 return err;
dffd30ee 1855
2064ee33 1856 bt_dev_info(hdev, "Intel firmware patch completed and activated");
dffd30ee 1857
213445b2 1858 goto complete;
dffd30ee
THJA		 1859
1860exit_mfg_disable:
1861 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1862 err = btintel_exit_mfg(hdev, false, false);
1863 if (err)
1864 return err;
dffd30ee 1865
2064ee33 1866 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1867
213445b2 1868 goto complete;
dffd30ee
THJA		 1869
1870exit_mfg_deactivate:
1871 release_firmware(fw);
1872
1873 /* Patching failed. Disable the manufacturer mode with reset and
1874 * deactivate the downloaded firmware patches.
1875 */
28dc4b92
LP		 1876 err = btintel_exit_mfg(hdev, true, false);
1877 if (err)
1878 return err;
dffd30ee 1879
2064ee33 1880 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1881
213445b2
MH		 1882complete:
1883 /* Set the event mask for Intel specific vendor events. This enables
1884 * a few extra events that are useful during general operation.
1885 */
1886 btintel_set_event_mask_mfg(hdev, false);
1887
4185a0f5 1888 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1889 return 0;
1890}
1891
cda0dd78
MH		 1892static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1893{
1894 struct sk_buff *skb;
1895 struct hci_event_hdr *hdr;
1896 struct hci_ev_cmd_complete *evt;
1897
cf07e341 1898 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
cda0dd78
MH		 1899 if (!skb)
1900 return -ENOMEM;
1901
4df864c1 1902 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1903 hdr->evt = HCI_EV_CMD_COMPLETE;
1904 hdr->plen = sizeof(*evt) + 1;
1905
4df864c1 1906 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1907 evt->ncmd = 0x01;
1908 evt->opcode = cpu_to_le16(opcode);
1909
634fef61 1910 skb_put_u8(skb, 0x00);
cda0dd78 1911
618e8bc2 1912 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1913
1914 return hci_recv_frame(hdev, skb);
1915}
1916
1917static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1918 int count)
1919{
1920 /* When the device is in bootloader mode, then it can send
1921 * events via the bulk endpoint. These events are treated the
1922 * same way as the ones received from the interrupt endpoint.
1923 */
1924 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1925 return btusb_recv_intr(data, buffer, count);
1926
1927 return btusb_recv_bulk(data, buffer, count);
1928}
1929
ccd6da2a
MH		 1930static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1931 unsigned int len)
1932{
1933 const struct intel_bootup *evt = ptr;
1934
1935 if (len != sizeof(*evt))
1936 return;
1937
1938 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1939 smp_mb__after_atomic();
1940 wake_up_bit(&data->flags, BTUSB_BOOTING);
1941 }
1942}
1943
1944static void btusb_intel_secure_send_result(struct btusb_data *data,
1945 const void *ptr, unsigned int len)
1946{
1947 const struct intel_secure_send_result *evt = ptr;
1948
1949 if (len != sizeof(*evt))
1950 return;
1951
1952 if (evt->result)
1953 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1954
1955 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1956 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1957 smp_mb__after_atomic();
1958 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1959 }
1960}
1961
cda0dd78
MH		 1962static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1963{
1964 struct btusb_data *data = hci_get_drvdata(hdev);
1965
1966 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1967 struct hci_event_hdr *hdr = (void *)skb->data;
1968
ccd6da2a
MH		 1969 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1970 hdr->plen > 0) {
1971 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1972 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1973
1974 switch (skb->data[2]) {
1975 case 0x02:
1976 /* When switching to the operational firmware
1977 * the device sends a vendor specific event
1978 * indicating that the bootup completed.
1979 */
1980 btusb_intel_bootup(data, ptr, len);
1981 break;
1982 case 0x06:
1983 /* When the firmware loading completes the
1984 * device sends out a vendor specific event
1985 * indicating the result of the firmware
1986 * loading.
1987 */
1988 btusb_intel_secure_send_result(data, ptr, len);
1989 break;
fad70972 1990 }
cda0dd78
MH		 1991 }
1992 }
1993
1994 return hci_recv_frame(hdev, skb);
1995}
1996
1997static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1998{
1999 struct btusb_data *data = hci_get_drvdata(hdev);
2000 struct urb *urb;
2001
2002 BT_DBG("%s", hdev->name);
2003
618e8bc2 2004 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 2005 case HCI_COMMAND_PKT:
2006 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2007 struct hci_command_hdr *cmd = (void *)skb->data;
2008 __u16 opcode = le16_to_cpu(cmd->opcode);
2009
2010 /* When in bootloader mode and the command 0xfc09
2011 * is received, it needs to be send down the
2012 * bulk endpoint. So allocate a bulk URB instead.
2013 */
2014 if (opcode == 0xfc09)
2015 urb = alloc_bulk_urb(hdev, skb);
2016 else
2017 urb = alloc_ctrl_urb(hdev, skb);
2018
2019 /* When the 0xfc01 command is issued to boot into
2020 * the operational firmware, it will actually not
2021 * send a command complete event. To keep the flow
2022 * control working inject that event here.
2023 */
2024 if (opcode == 0xfc01)
2025 inject_cmd_complete(hdev, opcode);
2026 } else {
2027 urb = alloc_ctrl_urb(hdev, skb);
2028 }
2029 if (IS_ERR(urb))
2030 return PTR_ERR(urb);
2031
2032 hdev->stat.cmd_tx++;
2033 return submit_or_queue_tx_urb(hdev, urb);
2034
2035 case HCI_ACLDATA_PKT:
2036 urb = alloc_bulk_urb(hdev, skb);
2037 if (IS_ERR(urb))
2038 return PTR_ERR(urb);
2039
2040 hdev->stat.acl_tx++;
2041 return submit_or_queue_tx_urb(hdev, urb);
2042
2043 case HCI_SCODATA_PKT:
2044 if (hci_conn_num(hdev, SCO_LINK) < 1)
2045 return -ENODEV;
2046
2047 urb = alloc_isoc_urb(hdev, skb);
2048 if (IS_ERR(urb))
2049 return PTR_ERR(urb);
2050
2051 hdev->stat.sco_tx++;
2052 return submit_tx_urb(hdev, urb);
2053 }
2054
2055 return -EILSEQ;
2056}
2057
cda0dd78
MH		 2058static int btusb_setup_intel_new(struct hci_dev *hdev)
2059{
cda0dd78 2060 struct btusb_data *data = hci_get_drvdata(hdev);
6c483de1 2061 struct intel_version ver;
faf174d2 2062 struct intel_boot_params params;
cda0dd78 2063 const struct firmware *fw;
e5889af6 2064 u32 boot_param;
cda0dd78
MH		 2065 char fwname[64];
2066 ktime_t calltime, delta, rettime;
2067 unsigned long long duration;
2068 int err;
2069
2070 BT_DBG("%s", hdev->name);
2071
04d729b8
THJA		 2072 /* Set the default boot parameter to 0x0 and it is updated to
2073 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2074 * command while downloading the firmware.
2075 */
2076 boot_param = 0x00000000;
e5889af6 2077
cda0dd78
MH		 2078 calltime = ktime_get();
2079
2080 /* Read the Intel version information to determine if the device
2081 * is in bootloader mode or if it already has operational firmware
2082 * loaded.
2083 */
6c483de1
LP		 2084 err = btintel_read_version(hdev, &ver);
2085 if (err)
2086 return err;
cda0dd78
MH		 2087
2088 /* The hardware platform number has a fixed value of 0x37 and
2089 * for now only accept this single value.
2090 */
6c483de1 2091 if (ver.hw_platform != 0x37) {
cda0dd78 2092 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
6c483de1 2093 hdev->name, ver.hw_platform);
cda0dd78
MH		 2094 return -EINVAL;
2095 }
2096
9268834b
THJA		 2097 /* Check for supported iBT hardware variants of this firmware
2098 * loading method.
a0af53b5
THJA		 2099 *
2100 * This check has been put in place to ensure correct forward
2101 * compatibility options when newer hardware variants come along.
cda0dd78 2102 */
9268834b
THJA		 2103 switch (ver.hw_variant) {
2104 case 0x0b: /* SfP */
2105 case 0x0c: /* WsP */
86a6129a 2106 case 0x11: /* JfP */
de766142 2107 case 0x12: /* ThP */
1ce0cec1
THJA		 2108 case 0x13: /* HrP */
2109 case 0x14: /* QnJ, IcP */
9268834b
THJA		 2110 break;
2111 default:
cda0dd78 2112 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
6c483de1 2113 hdev->name, ver.hw_variant);
cda0dd78
MH		 2114 return -EINVAL;
2115 }
2116
6c483de1 2117 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2118
2119 /* The firmware variant determines if the device is in bootloader
2120 * mode or is running operational firmware. The value 0x06 identifies
2121 * the bootloader and the value 0x23 identifies the operational
2122 * firmware.
2123 *
2124 * When the operational firmware is already present, then only
2125 * the check for valid Bluetooth device address is needed. This
2126 * determines if the device will be added as configured or
2127 * unconfigured controller.
2128 *
2129 * It is not possible to use the Secure Boot Parameters in this
2130 * case since that command is only available in bootloader mode.
2131 */
6c483de1 2132 if (ver.fw_variant == 0x23) {
cda0dd78 2133 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2134 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2135 return 0;
2136 }
2137
2138 /* If the device is not in bootloader mode, then the only possible
2139 * choice is to return an error and abort the device initialization.
2140 */
6c483de1 2141 if (ver.fw_variant != 0x06) {
cda0dd78 2142 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
6c483de1 2143 hdev->name, ver.fw_variant);
cda0dd78
MH		 2144 return -ENODEV;
2145 }
2146
cda0dd78
MH		 2147 /* Read the secure boot parameters to identify the operating
2148 * details of the bootloader.
2149 */
faf174d2
THJA		 2150 err = btintel_read_boot_params(hdev, &params);
2151 if (err)
2152 return err;
cda0dd78
MH		 2153
2154 /* It is required that every single firmware fragment is acknowledged
2155 * with a command complete event. If the boot parameters indicate
2156 * that this bootloader does not send them, then abort the setup.
2157 */
faf174d2 2158 if (params.limited_cce != 0x00) {
cda0dd78 2159 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
faf174d2 2160 hdev->name, params.limited_cce);
cda0dd78
MH		 2161 return -EINVAL;
2162 }
2163
2164 /* If the OTP has no valid Bluetooth device address, then there will
2165 * also be no valid address for the operational firmware.
2166 */
faf174d2 2167 if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
2064ee33 2168 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2169 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2170 }
2171
2172 /* With this Intel bootloader only the hardware variant and device
af3715e5
J		 2173 * revision information are used to select the right firmware for SfP
2174 * and WsP.
cda0dd78 2175 *
230b04ac
THJA		 2176 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2177 *
2178 * Currently the supported hardware variants are:
2179 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2180 * 12 (0x0c) for iBT3.5 (WsP)
af3715e5
J		 2181 *
2182 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2183 * variant, HW revision and FW revision, as these are dependent on CNVi
2184 * and RF Combination.
2185 *
86a6129a
THJA		 2186 * 17 (0x11) for iBT3.5 (JfP)
2187 * 18 (0x12) for iBT3.5 (ThP)
af3715e5
J		 2188 *
2189 * The firmware file name for these will be
2190 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2191 *
cda0dd78 2192 */
af3715e5
J		 2193 switch (ver.hw_variant) {
2194 case 0x0b: /* SfP */
2195 case 0x0c: /* WsP */
2196 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2197 le16_to_cpu(ver.hw_variant),
faf174d2 2198 le16_to_cpu(params.dev_revid));
af3715e5
J		 2199 break;
2200 case 0x11: /* JfP */
2201 case 0x12: /* ThP */
1ce0cec1
THJA		 2202 case 0x13: /* HrP */
2203 case 0x14: /* QnJ, IcP */
af3715e5
J		 2204 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2205 le16_to_cpu(ver.hw_variant),
2206 le16_to_cpu(ver.hw_revision),
2207 le16_to_cpu(ver.fw_revision));
2208 break;
2209 default:
2210 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2211 return -EINVAL;
2212 }
cda0dd78
MH		 2213
2214 err = request_firmware(&fw, fwname, &hdev->dev);
2215 if (err < 0) {
2216 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2217 hdev->name, err);
cda0dd78
MH		 2218 return err;
2219 }
2220
2064ee33 2221 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2222
52cc9168
THJA		 2223 /* Save the DDC file name for later use to apply once the firmware
2224 * downloading is done.
2225 */
af3715e5
J		 2226 switch (ver.hw_variant) {
2227 case 0x0b: /* SfP */
2228 case 0x0c: /* WsP */
2229 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2230 le16_to_cpu(ver.hw_variant),
faf174d2 2231 le16_to_cpu(params.dev_revid));
af3715e5
J		 2232 break;
2233 case 0x11: /* JfP */
2234 case 0x12: /* ThP */
1ce0cec1
THJA		 2235 case 0x13: /* HrP */
2236 case 0x14: /* QnJ, IcP */
af3715e5
J		 2237 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2238 le16_to_cpu(ver.hw_variant),
2239 le16_to_cpu(ver.hw_revision),
2240 le16_to_cpu(ver.fw_revision));
2241 break;
2242 default:
2243 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2244 return -EINVAL;
2245 }
52cc9168 2246
cda0dd78
MH		 2247 if (fw->size < 644) {
2248 BT_ERR("%s: Invalid size of firmware file (%zu)",
2249 hdev->name, fw->size);
2250 err = -EBADF;
2251 goto done;
2252 }
2253
2254 set_bit(BTUSB_DOWNLOADING, &data->flags);
2255
fbbe83c5
THJA		 2256 /* Start firmware downloading and get boot parameter */
2257 err = btintel_download_firmware(hdev, fw, &boot_param);
2258 if (err < 0)
cda0dd78 2259 goto done;
cda0dd78 2260
ce6bb929
MH		 2261 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2262
2064ee33 2263 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2264
cda0dd78
MH		 2265 /* Before switching the device into operational mode and with that
2266 * booting the loaded firmware, wait for the bootloader notification
2267 * that all fragments have been successfully received.
2268 *
a087a98e
JH		 2269 * When the event processing receives the notification, then the
2270 * BTUSB_DOWNLOADING flag will be cleared.
2271 *
2272 * The firmware loading should not take longer than 5 seconds
2273 * and thus just timeout if that happens and fail the setup
2274 * of this device.
cda0dd78 2275 */
129a7693
JH		 2276 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2277 TASK_INTERRUPTIBLE,
2278 msecs_to_jiffies(5000));
f0a70a04 2279 if (err == -EINTR) {
a087a98e 2280 BT_ERR("%s: Firmware loading interrupted", hdev->name);
a087a98e
JH		 2281 goto done;
2282 }
cda0dd78 2283
a087a98e
JH		 2284 if (err) {
2285 BT_ERR("%s: Firmware loading timeout", hdev->name);
2286 err = -ETIMEDOUT;
2287 goto done;
cda0dd78
MH		 2288 }
2289
2290 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2291 BT_ERR("%s: Firmware loading failed", hdev->name);
2292 err = -ENOEXEC;
2293 goto done;
2294 }
2295
2296 rettime = ktime_get();
2297 delta = ktime_sub(rettime, calltime);
2298 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2299
2064ee33 2300 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2301
2302done:
2303 release_firmware(fw);
2304
2305 if (err < 0)
2306 return err;
2307
2308 calltime = ktime_get();
2309
2310 set_bit(BTUSB_BOOTING, &data->flags);
2311
e5889af6
THJA		 2312 err = btintel_send_intel_reset(hdev, boot_param);
2313 if (err)
2314 return err;
cda0dd78
MH		 2315
2316 /* The bootloader will not indicate when the device is ready. This
2317 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2318 *
2319 * Booting into operational firmware should not take longer than
2320 * 1 second. However if that happens, then just fail the setup
2321 * since something went wrong.
cda0dd78 2322 */
2064ee33 2323 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2324
129a7693
JH		 2325 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2326 TASK_INTERRUPTIBLE,
2327 msecs_to_jiffies(1000));
cda0dd78 2328
f0a70a04 2329 if (err == -EINTR) {
fad70972
JH		 2330 BT_ERR("%s: Device boot interrupted", hdev->name);
2331 return -EINTR;
2332 }
cda0dd78 2333
fad70972
JH		 2334 if (err) {
2335 BT_ERR("%s: Device boot timeout", hdev->name);
2336 return -ETIMEDOUT;
cda0dd78
MH		 2337 }
2338
2339 rettime = ktime_get();
2340 delta = ktime_sub(rettime, calltime);
2341 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2342
2064ee33 2343 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2344
2345 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2346
52cc9168
THJA		 2347 /* Once the device is running in operational mode, it needs to apply
2348 * the device configuration (DDC) parameters.
2349 *
2350 * The device can work without DDC parameters, so even if it fails
2351 * to load the file, no need to fail the setup.
2352 */
e924d3d6 2353 btintel_load_ddc_config(hdev, fwname);
52cc9168 2354
213445b2
MH		 2355 /* Set the event mask for Intel specific vendor events. This enables
2356 * a few extra events that are useful during general operation. It
2357 * does not enable any debugging related events.
2358 *
2359 * The device will function correctly without these events enabled
2360 * and thus no need to fail the setup.
2361 */
2362 btintel_set_event_mask(hdev, false);
2363
cda0dd78
MH		 2364 return 0;
2365}
2366
bfbd45e9
THJA		 2367static int btusb_shutdown_intel(struct hci_dev *hdev)
2368{
2369 struct sk_buff *skb;
2370 long ret;
2371
2372 /* Some platforms have an issue with BT LED when the interface is
2373 * down or BT radio is turned off, which takes 5 seconds to BT LED
2374 * goes off. This command turns off the BT LED immediately.
2375 */
2376 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2377 if (IS_ERR(skb)) {
2378 ret = PTR_ERR(skb);
2379 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2380 hdev->name, ret);
2381 return ret;
2382 }
2383 kfree_skb(skb);
2384
2385 return 0;
2386}
2387
a4ccc9e3
RJ		 2388#ifdef CONFIG_PM
2389/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2390static int marvell_config_oob_wake(struct hci_dev *hdev)
2391{
2392 struct sk_buff *skb;
2393 struct btusb_data *data = hci_get_drvdata(hdev);
2394 struct device *dev = &data->udev->dev;
2395 u16 pin, gap, opcode;
2396 int ret;
2397 u8 cmd[5];
2398
2399 /* Move on if no wakeup pin specified */
2400 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2401 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2402 return 0;
2403
2404 /* Vendor specific command to configure a GPIO as wake-up pin */
2405 opcode = hci_opcode_pack(0x3F, 0x59);
2406 cmd[0] = opcode & 0xFF;
2407 cmd[1] = opcode >> 8;
2408 cmd[2] = 2; /* length of parameters that follow */
2409 cmd[3] = pin;
2410 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2411
2412 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2413 if (!skb) {
2414 bt_dev_err(hdev, "%s: No memory\n", __func__);
2415 return -ENOMEM;
2416 }
2417
59ae1d12 2418 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 2419 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2420
2421 ret = btusb_send_frame(hdev, skb);
2422 if (ret) {
2423 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2424 kfree_skb(skb);
2425 return ret;
2426 }
2427
2428 return 0;
2429}
2430#endif
2431
ae8df494
AK		 2432static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2433 const bdaddr_t *bdaddr)
2434{
2435 struct sk_buff *skb;
2436 u8 buf[8];
2437 long ret;
2438
2439 buf[0] = 0xfe;
2440 buf[1] = sizeof(bdaddr_t);
2441 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2442
2443 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2444 if (IS_ERR(skb)) {
2445 ret = PTR_ERR(skb);
2064ee33
MH		 2446 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2447 ret);
ae8df494
AK		 2448 return ret;
2449 }
2450 kfree_skb(skb);
2451
2452 return 0;
2453}
2454
5859223e
TK		 2455static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2456 const bdaddr_t *bdaddr)
2457{
2458 struct sk_buff *skb;
2459 u8 buf[10];
2460 long ret;
2461
2462 buf[0] = 0x01;
2463 buf[1] = 0x01;
2464 buf[2] = 0x00;
2465 buf[3] = sizeof(bdaddr_t);
2466 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2467
2468 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2469 if (IS_ERR(skb)) {
2470 ret = PTR_ERR(skb);
2064ee33 2471 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 2472 return ret;
2473 }
2474 kfree_skb(skb);
2475
2476 return 0;
2477}
2478
3267c884
KBYT		 2479#define QCA_DFU_PACKET_LEN 4096
2480
2481#define QCA_GET_TARGET_VERSION 0x09
2482#define QCA_CHECK_STATUS 0x05
2483#define QCA_DFU_DOWNLOAD 0x01
2484
2485#define QCA_SYSCFG_UPDATED 0x40
2486#define QCA_PATCH_UPDATED 0x80
2487#define QCA_DFU_TIMEOUT 3000
2488
2489struct qca_version {
2490 __le32 rom_version;
2491 __le32 patch_version;
2492 __le32 ram_version;
2493 __le32 ref_clock;
2494 __u8 reserved[4];
2495} __packed;
2496
2497struct qca_rampatch_version {
2498 __le16 rom_version;
2499 __le16 patch_version;
2500} __packed;
2501
2502struct qca_device_info {
bf906b3d
KBYT		 2503 u32 rom_version;
2504 u8 rampatch_hdr; /* length of header in rampatch */
2505 u8 nvm_hdr; /* length of header in NVM */
2506 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2507};
2508
2509static const struct qca_device_info qca_devices_table[] = {
2510 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2511 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2512 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2513 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2514 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2515 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2516};
2517
803cdb8c 2518static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3267c884
KBYT		 2519 void *data, u16 size)
2520{
3267c884
KBYT		 2521 int pipe, err;
2522 u8 *buf;
2523
2524 buf = kmalloc(size, GFP_KERNEL);
2525 if (!buf)
2526 return -ENOMEM;
2527
2528 /* Found some of USB hosts have IOT issues with ours so that we should
2529 * not wait until HCI layer is ready.
2530 */
2531 pipe = usb_rcvctrlpipe(udev, 0);
2532 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2533 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2534 if (err < 0) {
803cdb8c 2535 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 2536 goto done;
2537 }
2538
2539 memcpy(data, buf, size);
2540
2541done:
2542 kfree(buf);
2543
2544 return err;
2545}
2546
2547static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2548 const struct firmware *firmware,
2549 size_t hdr_size)
2550{
2551 struct btusb_data *btdata = hci_get_drvdata(hdev);
2552 struct usb_device *udev = btdata->udev;
2553 size_t count, size, sent = 0;
2554 int pipe, len, err;
2555 u8 *buf;
2556
2557 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2558 if (!buf)
2559 return -ENOMEM;
2560
2561 count = firmware->size;
2562
2563 size = min_t(size_t, count, hdr_size);
2564 memcpy(buf, firmware->data, size);
2565
2566 /* USB patches should go down to controller through USB path
2567 * because binary format fits to go down through USB channel.
2568 * USB control path is for patching headers and USB bulk is for
2569 * patch body.
2570 */
2571 pipe = usb_sndctrlpipe(udev, 0);
2572 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2573 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2574 if (err < 0) {
2064ee33 2575 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 2576 goto done;
2577 }
2578
2579 sent += size;
2580 count -= size;
2581
2582 while (count) {
2583 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2584
2585 memcpy(buf, firmware->data + sent, size);
2586
2587 pipe = usb_sndbulkpipe(udev, 0x02);
2588 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2589 QCA_DFU_TIMEOUT);
2590 if (err < 0) {
2064ee33
MH		 2591 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2592 sent, firmware->size, err);
3267c884
KBYT		 2593 break;
2594 }
2595
2596 if (size != len) {
2064ee33 2597 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 2598 err = -EILSEQ;
2599 break;
2600 }
2601
2602 sent += size;
2603 count -= size;
2604 }
2605
2606done:
2607 kfree(buf);
2608 return err;
2609}
2610
2611static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2612 struct qca_version *ver,
2613 const struct qca_device_info *info)
2614{
2615 struct qca_rampatch_version *rver;
2616 const struct firmware *fw;
bf906b3d
KBYT		 2617 u32 ver_rom, ver_patch;
2618 u16 rver_rom, rver_patch;
3267c884
KBYT		 2619 char fwname[64];
2620 int err;
2621
bf906b3d
KBYT		 2622 ver_rom = le32_to_cpu(ver->rom_version);
2623 ver_patch = le32_to_cpu(ver->patch_version);
2624
2625 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2626
2627 err = request_firmware(&fw, fwname, &hdev->dev);
2628 if (err) {
2064ee33
MH		 2629 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2630 fwname, err);
3267c884
KBYT		 2631 return err;
2632 }
2633
2064ee33 2634 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 2635
3267c884 2636 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2637 rver_rom = le16_to_cpu(rver->rom_version);
2638 rver_patch = le16_to_cpu(rver->patch_version);
2639
2064ee33
MH		 2640 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2641 "firmware rome 0x%x build 0x%x",
2642 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 2643
bf906b3d 2644 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 2645 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 2646 err = -EINVAL;
2647 goto done;
2648 }
2649
2650 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2651
2652done:
2653 release_firmware(fw);
2654
2655 return err;
2656}
2657
2658static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2659 struct qca_version *ver,
2660 const struct qca_device_info *info)
2661{
2662 const struct firmware *fw;
2663 char fwname[64];
2664 int err;
2665
2666 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2667 le32_to_cpu(ver->rom_version));
2668
2669 err = request_firmware(&fw, fwname, &hdev->dev);
2670 if (err) {
2064ee33
MH		 2671 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2672 fwname, err);
3267c884
KBYT		 2673 return err;
2674 }
2675
2064ee33 2676 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 2677
2678 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2679
2680 release_firmware(fw);
2681
2682 return err;
2683}
2684
803cdb8c
TI		 2685/* identify the ROM version and check whether patches are needed */
2686static bool btusb_qca_need_patch(struct usb_device *udev)
2687{
2688 struct qca_version ver;
2689
2690 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
2691 sizeof(ver)) < 0)
2692 return false;
2693 /* only low ROM versions need patches */
2694 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
2695}
2696
3267c884
KBYT		 2697static int btusb_setup_qca(struct hci_dev *hdev)
2698{
803cdb8c
TI		 2699 struct btusb_data *btdata = hci_get_drvdata(hdev);
2700 struct usb_device *udev = btdata->udev;
3267c884
KBYT		 2701 const struct qca_device_info *info = NULL;
2702 struct qca_version ver;
bf906b3d 2703 u32 ver_rom;
3267c884
KBYT		 2704 u8 status;
2705 int i, err;
2706
803cdb8c 2707 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2708 sizeof(ver));
3267c884
KBYT		 2709 if (err < 0)
2710 return err;
2711
bf906b3d 2712 ver_rom = le32_to_cpu(ver.rom_version);
803cdb8c
TI		 2713 /* Don't care about high ROM versions */
2714 if (ver_rom & ~0xffffU)
2715 return 0;
2716
3267c884 2717 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2718 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2719 info = &qca_devices_table[i];
2720 }
2721 if (!info) {
2064ee33 2722 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 2723 return -ENODEV;
2724 }
2725
803cdb8c 2726 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3267c884
KBYT		 2727 sizeof(status));
2728 if (err < 0)
2729 return err;
2730
2731 if (!(status & QCA_PATCH_UPDATED)) {
2732 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2733 if (err < 0)
2734 return err;
2735 }
2736
2737 if (!(status & QCA_SYSCFG_UPDATED)) {
2738 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2739 if (err < 0)
2740 return err;
2741 }
2742
2743 return 0;
2744}
2745
9d08f504
MH		 2746#ifdef CONFIG_BT_HCIBTUSB_BCM
2747static inline int __set_diag_interface(struct hci_dev *hdev)
2748{
2749 struct btusb_data *data = hci_get_drvdata(hdev);
2750 struct usb_interface *intf = data->diag;
2751 int i;
2752
2753 if (!data->diag)
2754 return -ENODEV;
2755
2756 data->diag_tx_ep = NULL;
2757 data->diag_rx_ep = NULL;
2758
2759 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2760 struct usb_endpoint_descriptor *ep_desc;
2761
2762 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2763
2764 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2765 data->diag_tx_ep = ep_desc;
2766 continue;
2767 }
2768
2769 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2770 data->diag_rx_ep = ep_desc;
2771 continue;
2772 }
2773 }
2774
2775 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 2776 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 2777 return -ENODEV;
2778 }
2779
2780 return 0;
2781}
2782
2783static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2784{
2785 struct btusb_data *data = hci_get_drvdata(hdev);
2786 struct sk_buff *skb;
2787 struct urb *urb;
2788 unsigned int pipe;
2789
2790 if (!data->diag_tx_ep)
2791 return ERR_PTR(-ENODEV);
2792
2793 urb = usb_alloc_urb(0, GFP_KERNEL);
2794 if (!urb)
2795 return ERR_PTR(-ENOMEM);
2796
2797 skb = bt_skb_alloc(2, GFP_KERNEL);
2798 if (!skb) {
2799 usb_free_urb(urb);
2800 return ERR_PTR(-ENOMEM);
2801 }
2802
634fef61
JB		 2803 skb_put_u8(skb, 0xf0);
2804 skb_put_u8(skb, enable);
9d08f504
MH		 2805
2806 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2807
2808 usb_fill_bulk_urb(urb, data->udev, pipe,
2809 skb->data, skb->len, btusb_tx_complete, skb);
2810
2811 skb->dev = (void *)hdev;
2812
2813 return urb;
2814}
2815
2816static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2817{
2818 struct btusb_data *data = hci_get_drvdata(hdev);
2819 struct urb *urb;
2820
2821 if (!data->diag)
2822 return -ENODEV;
2823
2824 if (!test_bit(HCI_RUNNING, &hdev->flags))
2825 return -ENETDOWN;
2826
2827 urb = alloc_diag_urb(hdev, enable);
2828 if (IS_ERR(urb))
2829 return PTR_ERR(urb);
2830
2831 return submit_or_queue_tx_urb(hdev, urb);
2832}
2833#endif
2834
fd913ef7
RJ		 2835#ifdef CONFIG_PM
2836static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2837{
2838 struct btusb_data *data = priv;
2839
2840 pm_wakeup_event(&data->udev->dev, 0);
017789f3 2841 pm_system_wakeup();
fd913ef7
RJ		 2842
2843 /* Disable only if not already disabled (keep it balanced) */
2844 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2845 disable_irq_nosync(irq);
2846 disable_irq_wake(irq);
2847 }
2848 return IRQ_HANDLED;
2849}
2850
2851static const struct of_device_id btusb_match_table[] = {
2852 { .compatible = "usb1286,204e" },
2853 { }
2854};
2855MODULE_DEVICE_TABLE(of, btusb_match_table);
2856
2857/* Use an oob wakeup pin? */
2858static int btusb_config_oob_wake(struct hci_dev *hdev)
2859{
2860 struct btusb_data *data = hci_get_drvdata(hdev);
2861 struct device *dev = &data->udev->dev;
2862 int irq, ret;
2863
2864 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2865
2866 if (!of_match_device(btusb_match_table, dev))
2867 return 0;
2868
2869 /* Move on if no IRQ specified */
2870 irq = of_irq_get_byname(dev->of_node, "wakeup");
2871 if (irq <= 0) {
2872 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2873 return 0;
2874 }
2875
2876 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2877 0, "OOB Wake-on-BT", data);
2878 if (ret) {
2879 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2880 return ret;
2881 }
2882
2883 ret = device_init_wakeup(dev, true);
2884 if (ret) {
2885 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2886 return ret;
2887 }
2888
2889 data->oob_wake_irq = irq;
2890 disable_irq(irq);
2891 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2892 return 0;
2893}
2894#endif
2895
fc549102
HG		 2896static void btusb_check_needs_reset_resume(struct usb_interface *intf)
2897{
2898 if (dmi_check_system(btusb_needs_reset_resume_table))
2899 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
2900}
2901
5e23b923 2902static int btusb_probe(struct usb_interface *intf,
89e7533d 2903 const struct usb_device_id *id)
5e23b923
MH		 2904{
2905 struct usb_endpoint_descriptor *ep_desc;
2906 struct btusb_data *data;
2907 struct hci_dev *hdev;
22f8e9db 2908 unsigned ifnum_base;
5e23b923
MH		 2909 int i, err;
2910
2911 BT_DBG("intf %p id %p", intf, id);
2912
cfeb4145 2913 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2914 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2915 if (!(id->driver_info & BTUSB_IFNUM_2))
2916 return -ENODEV;
2917 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2918 return -ENODEV;
2919 }
2920
2921 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2922
2923 if (!id->driver_info) {
2924 const struct usb_device_id *match;
89e7533d 2925
5e23b923
MH		 2926 match = usb_match_id(intf, blacklist_table);
2927 if (match)
2928 id = match;
2929 }
2930
cfeb4145
MH		 2931 if (id->driver_info == BTUSB_IGNORE)
2932 return -ENODEV;
2933
2d25f8b4
SL		 2934 if (id->driver_info & BTUSB_ATH3012) {
2935 struct usb_device *udev = interface_to_usbdev(intf);
2936
2937 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 2938 * patch and sysconfig files
2939 */
803cdb8c
TI		 2940 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
2941 !btusb_qca_need_patch(udev))
2d25f8b4
SL		 2942 return -ENODEV;
2943 }
2944
98921dbd 2945 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2946 if (!data)
2947 return -ENOMEM;
2948
2949 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2950 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2951
2952 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2953 data->intr_ep = ep_desc;
2954 continue;
2955 }
2956
2957 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2958 data->bulk_tx_ep = ep_desc;
2959 continue;
2960 }
2961
2962 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2963 data->bulk_rx_ep = ep_desc;
2964 continue;
2965 }
2966 }
2967
98921dbd 2968 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2969 return -ENODEV;
5e23b923 2970
893ba544
MH		 2971 if (id->driver_info & BTUSB_AMP) {
2972 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2973 data->cmdreq = 0x2b;
2974 } else {
2975 data->cmdreq_type = USB_TYPE_CLASS;
2976 data->cmdreq = 0x00;
2977 }
7a9d4020 2978
5e23b923 2979 data->udev = interface_to_usbdev(intf);
5fbcd260 2980 data->intf = intf;
5e23b923 2981
5e23b923 2982 INIT_WORK(&data->work, btusb_work);
7bee549e 2983 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2984 init_usb_anchor(&data->deferred);
2985 init_usb_anchor(&data->tx_anchor);
7bee549e 2986 spin_lock_init(&data->txlock);
5e23b923 2987
5e23b923
MH		 2988 init_usb_anchor(&data->intr_anchor);
2989 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2990 init_usb_anchor(&data->isoc_anchor);
9d08f504 2991 init_usb_anchor(&data->diag_anchor);
803b5836 2992 spin_lock_init(&data->rxlock);
5e23b923 2993
cda0dd78
MH		 2994 if (id->driver_info & BTUSB_INTEL_NEW) {
2995 data->recv_event = btusb_recv_event_intel;
2996 data->recv_bulk = btusb_recv_bulk_intel;
2997 set_bit(BTUSB_BOOTLOADER, &data->flags);
2998 } else {
2999 data->recv_event = hci_recv_frame;
3000 data->recv_bulk = btusb_recv_bulk;
3001 }
2cbd3f5c 3002
5e23b923 3003 hdev = hci_alloc_dev();
98921dbd 3004 if (!hdev)
5e23b923 3005 return -ENOMEM;
5e23b923 3006
c13854ce 3007 hdev->bus = HCI_USB;
155961e8 3008 hci_set_drvdata(hdev, data);
5e23b923 3009
893ba544
MH		 3010 if (id->driver_info & BTUSB_AMP)
3011 hdev->dev_type = HCI_AMP;
3012 else
ca8bee5d 3013 hdev->dev_type = HCI_PRIMARY;
893ba544 3014
5e23b923
MH		 3015 data->hdev = hdev;
3016
3017 SET_HCIDEV_DEV(hdev, &intf->dev);
3018
9f8f962c
MH		 3019 hdev->open = btusb_open;
3020 hdev->close = btusb_close;
3021 hdev->flush = btusb_flush;
3022 hdev->send = btusb_send_frame;
3023 hdev->notify = btusb_notify;
3024
fd913ef7
RJ		 3025#ifdef CONFIG_PM
3026 err = btusb_config_oob_wake(hdev);
3027 if (err)
3028 goto out_free_dev;
a4ccc9e3
RJ		 3029
3030 /* Marvell devices may need a specific chip configuration */
3031 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3032 err = marvell_config_oob_wake(hdev);
3033 if (err)
3034 goto out_free_dev;
3035 }
fd913ef7 3036#endif
418678b0
SJ		 3037 if (id->driver_info & BTUSB_CW6622)
3038 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3039
6c9d435d
MH		 3040 if (id->driver_info & BTUSB_BCM2045)
3041 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3042
9f8f962c
MH		 3043 if (id->driver_info & BTUSB_BCM92035)
3044 hdev->setup = btusb_setup_bcm92035;
5e23b923 3045
c2bfb100 3046#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 3047 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 3048 hdev->manufacturer = 15;
c2bfb100 3049 hdev->setup = btbcm_setup_patchram;
9d08f504 3050 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3051 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3052
3053 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3054 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3055 }
10d4c673 3056
9d08f504 3057 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 3058 hdev->manufacturer = 15;
c2bfb100 3059 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3060 hdev->set_diag = btusb_bcm_set_diag;
3061
3062 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3063 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3064 }
c2bfb100 3065#endif
17b2772b 3066
cb8d6597 3067 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3068 hdev->manufacturer = 2;
dffd30ee 3069 hdev->setup = btusb_setup_intel;
bfbd45e9 3070 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3071 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3072 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 3073 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3074 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3075 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3076 }
dffd30ee 3077
cda0dd78 3078 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3079 hdev->manufacturer = 2;
cda0dd78
MH		 3080 hdev->send = btusb_send_frame_intel;
3081 hdev->setup = btusb_setup_intel_new;
eeb6abe9 3082 hdev->hw_error = btintel_hw_error;
6d2e50d2 3083 hdev->set_diag = btintel_set_diag;
4185a0f5 3084 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 3085 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 3086 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3087 }
3088
ae8df494
AK		 3089 if (id->driver_info & BTUSB_MARVELL)
3090 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3091
661cf88a
MH		 3092 if (id->driver_info & BTUSB_SWAVE) {
3093 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3094 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3095 }
d57dbe77 3096
e4c534bb
MH		 3097 if (id->driver_info & BTUSB_INTEL_BOOT) {
3098 hdev->manufacturer = 2;
40df783d 3099 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3100 }
40df783d 3101
79f0c87d 3102 if (id->driver_info & BTUSB_ATH3012) {
803cdb8c 3103 data->setup_on_usb = btusb_setup_qca;
5859223e 3104 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3105 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3106 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3107 }
5859223e 3108
3267c884
KBYT		 3109 if (id->driver_info & BTUSB_QCA_ROME) {
3110 data->setup_on_usb = btusb_setup_qca;
3111 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
96e58d36 3112 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
fc549102 3113 btusb_check_needs_reset_resume(intf);
3267c884
KBYT		 3114 }
3115
db33c77d 3116#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 3117 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 3118 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 3119
3120 /* Realtek devices lose their updated firmware over suspend,
3121 * but the USB hub doesn't notice any status change.
3122 * Explicitly request a device reset on resume.
3123 */
61f5acea 3124 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
04b8c814 3125 }
db33c77d 3126#endif
a2698a9b 3127
893ba544
MH		 3128 if (id->driver_info & BTUSB_AMP) {
3129 /* AMP controllers do not support SCO packets */
3130 data->isoc = NULL;
3131 } else {
22f8e9db
MH		 3132 /* Interface orders are hardcoded in the specification */
3133 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
459232fc 3134 data->isoc_ifnum = ifnum_base + 1;
893ba544 3135 }
9bfa35fe 3136
7a9d4020 3137 if (!reset)
a6c511c6 3138 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3139
3140 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3141 if (!disable_scofix)
3142 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3143 }
3144
9bfa35fe
MH		 3145 if (id->driver_info & BTUSB_BROKEN_ISOC)
3146 data->isoc = NULL;
3147
7a9d4020
MH		 3148 if (id->driver_info & BTUSB_DIGIANSWER) {
3149 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3150 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3151 }
3152
3153 if (id->driver_info & BTUSB_CSR) {
3154 struct usb_device *udev = data->udev;
81cac64b 3155 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3156
3157 /* Old firmware would otherwise execute USB reset */
81cac64b 3158 if (bcdDevice < 0x117)
a6c511c6 3159 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3160
3161 /* Fake CSR devices with broken commands */
6cafcd95 3162 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3163 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3164
3165 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3166 }
3167
cfeb4145 3168 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3169 struct usb_device *udev = data->udev;
cfeb4145 3170
7a9d4020 3171 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3172 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3173 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3174 }
3175
3a5ef20c
MH		 3176 if (id->driver_info & BTUSB_INTEL_BOOT) {
3177 /* A bug in the bootloader causes that interrupt interface is
3178 * only enabled after receiving SetInterface(0, AltSetting=0).
3179 */
3180 err = usb_set_interface(data->udev, 0, 0);
3181 if (err < 0) {
3182 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3183 goto out_free_dev;
3a5ef20c
MH		 3184 }
3185 }
3186
9bfa35fe
MH		 3187 if (data->isoc) {
3188 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3189 data->isoc, data);
10ab133b
RJ		 3190 if (err < 0)
3191 goto out_free_dev;
9bfa35fe
MH		 3192 }
3193
9d08f504
MH		 3194#ifdef CONFIG_BT_HCIBTUSB_BCM
3195 if (data->diag) {
3196 if (!usb_driver_claim_interface(&btusb_driver,
3197 data->diag, data))
3198 __set_diag_interface(hdev);
3199 else
3200 data->diag = NULL;
3201 }
3202#endif
3203
eff2d68c
HG		 3204 if (enable_autosuspend)
3205 usb_enable_autosuspend(data->udev);
3206
5e23b923 3207 err = hci_register_dev(hdev);
10ab133b
RJ		 3208 if (err < 0)
3209 goto out_free_dev;
5e23b923
MH		 3210
3211 usb_set_intfdata(intf, data);
3212
3213 return 0;
10ab133b
RJ		 3214
3215out_free_dev:
3216 hci_free_dev(hdev);
3217 return err;
5e23b923
MH		 3218}
3219
3220static void btusb_disconnect(struct usb_interface *intf)
3221{
3222 struct btusb_data *data = usb_get_intfdata(intf);
3223 struct hci_dev *hdev;
3224
3225 BT_DBG("intf %p", intf);
3226
3227 if (!data)
3228 return;
3229
3230 hdev = data->hdev;
5fbcd260
MH		 3231 usb_set_intfdata(data->intf, NULL);
3232
3233 if (data->isoc)
3234 usb_set_intfdata(data->isoc, NULL);
5e23b923 3235
9d08f504
MH		 3236 if (data->diag)
3237 usb_set_intfdata(data->diag, NULL);
3238
5e23b923
MH		 3239 hci_unregister_dev(hdev);
3240
9d08f504
MH		 3241 if (intf == data->intf) {
3242 if (data->isoc)
3243 usb_driver_release_interface(&btusb_driver, data->isoc);
3244 if (data->diag)
3245 usb_driver_release_interface(&btusb_driver, data->diag);
3246 } else if (intf == data->isoc) {
3247 if (data->diag)
3248 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3249 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3250 } else if (intf == data->diag) {
3251 usb_driver_release_interface(&btusb_driver, data->intf);
3252 if (data->isoc)
3253 usb_driver_release_interface(&btusb_driver, data->isoc);
3254 }
5fbcd260 3255
fd913ef7
RJ		 3256 if (data->oob_wake_irq)
3257 device_init_wakeup(&data->udev->dev, false);
3258
5e23b923
MH		 3259 hci_free_dev(hdev);
3260}
3261
7bee549e 3262#ifdef CONFIG_PM
6a88adf2
MH		 3263static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3264{
3265 struct btusb_data *data = usb_get_intfdata(intf);
3266
3267 BT_DBG("intf %p", intf);
3268
3269 if (data->suspend_count++)
3270 return 0;
3271
7bee549e 3272 spin_lock_irq(&data->txlock);
5b1b0b81 3273 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3274 set_bit(BTUSB_SUSPENDING, &data->flags);
3275 spin_unlock_irq(&data->txlock);
3276 } else {
3277 spin_unlock_irq(&data->txlock);
3278 data->suspend_count--;
3279 return -EBUSY;
3280 }
3281
6a88adf2
MH		 3282 cancel_work_sync(&data->work);
3283
7bee549e 3284 btusb_stop_traffic(data);
6a88adf2
MH		 3285 usb_kill_anchored_urbs(&data->tx_anchor);
3286
fd913ef7
RJ		 3287 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3288 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3289 enable_irq_wake(data->oob_wake_irq);
3290 enable_irq(data->oob_wake_irq);
3291 }
3292
6a88adf2
MH		 3293 return 0;
3294}
3295
7bee549e
ON		 3296static void play_deferred(struct btusb_data *data)
3297{
3298 struct urb *urb;
3299 int err;
3300
3301 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 3302 usb_anchor_urb(urb, &data->tx_anchor);
3303
7bee549e 3304 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 3305 if (err < 0) {
3306 if (err != -EPERM && err != -ENODEV)
3307 BT_ERR("%s urb %p submission failed (%d)",
3308 data->hdev->name, urb, -err);
3309 kfree(urb->setup_packet);
3310 usb_unanchor_urb(urb);
3311 usb_free_urb(urb);
7bee549e 3312 break;
19cfe912 3313 }
7bee549e
ON		 3314
3315 data->tx_in_flight++;
19cfe912
JC		 3316 usb_free_urb(urb);
3317 }
3318
3319 /* Cleanup the rest deferred urbs. */
3320 while ((urb = usb_get_from_anchor(&data->deferred))) {
3321 kfree(urb->setup_packet);
3322 usb_free_urb(urb);
7bee549e 3323 }
7bee549e
ON		 3324}
3325
6a88adf2
MH		 3326static int btusb_resume(struct usb_interface *intf)
3327{
3328 struct btusb_data *data = usb_get_intfdata(intf);
3329 struct hci_dev *hdev = data->hdev;
7bee549e 3330 int err = 0;
6a88adf2
MH		 3331
3332 BT_DBG("intf %p", intf);
3333
3334 if (--data->suspend_count)
3335 return 0;
3336
fd913ef7
RJ		 3337 /* Disable only if not already disabled (keep it balanced) */
3338 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3339 disable_irq(data->oob_wake_irq);
3340 disable_irq_wake(data->oob_wake_irq);
3341 }
3342
6a88adf2 3343 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3344 goto done;
6a88adf2
MH		 3345
3346 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3347 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3348 if (err < 0) {
3349 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3350 goto failed;
6a88adf2
MH		 3351 }
3352 }
3353
3354 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3355 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3356 if (err < 0) {
6a88adf2 3357 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3358 goto failed;
3359 }
3360
3361 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3362 }
3363
3364 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3365 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3366 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3367 else
3368 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3369 }
3370
7bee549e
ON		 3371 spin_lock_irq(&data->txlock);
3372 play_deferred(data);
3373 clear_bit(BTUSB_SUSPENDING, &data->flags);
3374 spin_unlock_irq(&data->txlock);
3375 schedule_work(&data->work);
3376
6a88adf2 3377 return 0;
7bee549e
ON		 3378
3379failed:
3380 usb_scuttle_anchored_urbs(&data->deferred);
3381done:
3382 spin_lock_irq(&data->txlock);
3383 clear_bit(BTUSB_SUSPENDING, &data->flags);
3384 spin_unlock_irq(&data->txlock);
3385
3386 return err;
6a88adf2 3387}
7bee549e 3388#endif
6a88adf2 3389
5e23b923
MH		 3390static struct usb_driver btusb_driver = {
3391 .name = "btusb",
3392 .probe = btusb_probe,
3393 .disconnect = btusb_disconnect,
7bee549e 3394#ifdef CONFIG_PM
6a88adf2
MH		 3395 .suspend = btusb_suspend,
3396 .resume = btusb_resume,
7bee549e 3397#endif
5e23b923 3398 .id_table = btusb_table,
7bee549e 3399 .supports_autosuspend = 1,
e1f12eb6 3400 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3401};
3402
93f1508c 3403module_usb_driver(btusb_driver);
5e23b923 3404
cfeb4145
MH		 3405module_param(disable_scofix, bool, 0644);
3406MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3407
3408module_param(force_scofix, bool, 0644);
3409MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3410
eff2d68c
HG		 3411module_param(enable_autosuspend, bool, 0644);
3412MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
3413
cfeb4145
MH		 3414module_param(reset, bool, 0644);
3415MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3416
5e23b923
MH		 3417MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3418MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3419MODULE_VERSION(VERSION);
3420MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)