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Bluetooth: Remove redundant check on status
[mirror_ubuntu-hirsute-kernel.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) {
85418fef
MH		 1601 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1602 ret);
dffd30ee
THJA		 1603 return NULL;
1604 }
1605
85418fef
MH		 1606 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1607 fwname, ret);
dffd30ee
THJA		 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) {
85418fef
MH		 1615 bt_dev_err(hdev, "failed to open default fw file: %s",
1616 fwname);
dffd30ee
THJA		 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) {
85418fef 1645 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
dffd30ee
THJA		 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) {
85418fef 1659 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
dffd30ee
THJA		 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) {
85418fef 1692 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
dffd30ee
THJA		 1693 return -EFAULT;
1694 }
1695
1696 evt_param = *fw_ptr;
1697 *fw_ptr += evt->plen;
1698 remain -= evt->plen;
1699 }
1700
1701 /* Every HCI commands in the firmware file has its correspond event.
1702 * If event is not found or remain is smaller than zero, the firmware
1703 * file is corrupted.
1704 */
1705 if (!evt || !evt_param || remain < 0) {
85418fef 1706 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
dffd30ee
THJA		 1707 return -EFAULT;
1708 }
1709
1710 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1711 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1712 if (IS_ERR(skb)) {
85418fef
MH		 1713 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1714 cmd->opcode, PTR_ERR(skb));
d9c78e97 1715 return PTR_ERR(skb);
dffd30ee
THJA		 1716 }
1717
1718 /* It ensures that the returned event matches the event data read from
1719 * the firmware file. At fist, it checks the length and then
1720 * the contents of the event.
1721 */
1722 if (skb->len != evt->plen) {
85418fef
MH		 1723 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1724 le16_to_cpu(cmd->opcode));
dffd30ee
THJA		 1725 kfree_skb(skb);
1726 return -EFAULT;
1727 }
1728
1729 if (memcmp(skb->data, evt_param, evt->plen)) {
85418fef
MH		 1730 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1731 le16_to_cpu(cmd->opcode));
dffd30ee
THJA		 1732 kfree_skb(skb);
1733 return -EFAULT;
1734 }
1735 kfree_skb(skb);
1736
1737 return 0;
1738}
1739
1740static int btusb_setup_intel(struct hci_dev *hdev)
1741{
1742 struct sk_buff *skb;
1743 const struct firmware *fw;
1744 const u8 *fw_ptr;
28dc4b92 1745 int disable_patch, err;
6c483de1 1746 struct intel_version ver;
dffd30ee 1747
dffd30ee
THJA		 1748 BT_DBG("%s", hdev->name);
1749
1750 /* The controller has a bug with the first HCI command sent to it
1751 * returning number of completed commands as zero. This would stall the
1752 * command processing in the Bluetooth core.
1753 *
1754 * As a workaround, send HCI Reset command first which will reset the
1755 * number of completed commands and allow normal command processing
1756 * from now on.
1757 */
1758 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1759 if (IS_ERR(skb)) {
85418fef
MH		 1760 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1761 PTR_ERR(skb));
d9c78e97 1762 return PTR_ERR(skb);
dffd30ee
THJA		 1763 }
1764 kfree_skb(skb);
1765
1766 /* Read Intel specific controller version first to allow selection of
1767 * which firmware file to load.
1768 *
1769 * The returned information are hardware variant and revision plus
1770 * firmware variant, revision and build number.
1771 */
6c483de1
LP		 1772 err = btintel_read_version(hdev, &ver);
1773 if (err)
1774 return err;
dffd30ee 1775
2064ee33
MH		 1776 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1777 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1778 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1779 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1780
1781 /* fw_patch_num indicates the version of patch the device currently
1782 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1783 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1784 */
6c483de1 1785 if (ver.fw_patch_num) {
2064ee33
MH		 1786 bt_dev_info(hdev, "Intel device is already patched. "
1787 "patch num: %02x", ver.fw_patch_num);
213445b2 1788 goto complete;
dffd30ee
THJA		 1789 }
1790
1791 /* Opens the firmware patch file based on the firmware version read
1792 * from the controller. If it fails to open the matching firmware
1793 * patch file, it tries to open the default firmware patch file.
1794 * If no patch file is found, allow the device to operate without
1795 * a patch.
1796 */
6c483de1
LP		 1797 fw = btusb_setup_intel_get_fw(hdev, &ver);
1798 if (!fw)
213445b2 1799 goto complete;
dffd30ee
THJA		 1800 fw_ptr = fw->data;
1801
28dc4b92 1802 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1803 * Only while this mode is enabled, the driver can download the
1804 * firmware patch data and configuration parameters.
1805 */
28dc4b92
LP		 1806 err = btintel_enter_mfg(hdev);
1807 if (err) {
dffd30ee 1808 release_firmware(fw);
28dc4b92 1809 return err;
dffd30ee
THJA		 1810 }
1811
dffd30ee
THJA		 1812 disable_patch = 1;
1813
1814 /* The firmware data file consists of list of Intel specific HCI
1815 * commands and its expected events. The first byte indicates the
1816 * type of the message, either HCI command or HCI event.
1817 *
1818 * It reads the command and its expected event from the firmware file,
1819 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1820 * the returned event is compared with the event read from the firmware
1821 * file and it will continue until all the messages are downloaded to
1822 * the controller.
1823 *
1824 * Once the firmware patching is completed successfully,
1825 * the manufacturer mode is disabled with reset and activating the
1826 * downloaded patch.
1827 *
1828 * If the firmware patching fails, the manufacturer mode is
1829 * disabled with reset and deactivating the patch.
1830 *
1831 * If the default patch file is used, no reset is done when disabling
1832 * the manufacturer.
1833 */
1834 while (fw->size > fw_ptr - fw->data) {
1835 int ret;
1836
1837 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1838 &disable_patch);
1839 if (ret < 0)
1840 goto exit_mfg_deactivate;
1841 }
1842
1843 release_firmware(fw);
1844
1845 if (disable_patch)
1846 goto exit_mfg_disable;
1847
1848 /* Patching completed successfully and disable the manufacturer mode
1849 * with reset and activate the downloaded firmware patches.
1850 */
28dc4b92
LP		 1851 err = btintel_exit_mfg(hdev, true, true);
1852 if (err)
1853 return err;
dffd30ee 1854
2064ee33 1855 bt_dev_info(hdev, "Intel firmware patch completed and activated");
dffd30ee 1856
213445b2 1857 goto complete;
dffd30ee
THJA		 1858
1859exit_mfg_disable:
1860 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1861 err = btintel_exit_mfg(hdev, false, false);
1862 if (err)
1863 return err;
dffd30ee 1864
2064ee33 1865 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1866
213445b2 1867 goto complete;
dffd30ee
THJA		 1868
1869exit_mfg_deactivate:
1870 release_firmware(fw);
1871
1872 /* Patching failed. Disable the manufacturer mode with reset and
1873 * deactivate the downloaded firmware patches.
1874 */
28dc4b92
LP		 1875 err = btintel_exit_mfg(hdev, true, false);
1876 if (err)
1877 return err;
dffd30ee 1878
2064ee33 1879 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1880
213445b2
MH		 1881complete:
1882 /* Set the event mask for Intel specific vendor events. This enables
1883 * a few extra events that are useful during general operation.
1884 */
1885 btintel_set_event_mask_mfg(hdev, false);
1886
4185a0f5 1887 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1888 return 0;
1889}
1890
cda0dd78
MH		 1891static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1892{
1893 struct sk_buff *skb;
1894 struct hci_event_hdr *hdr;
1895 struct hci_ev_cmd_complete *evt;
1896
cf07e341 1897 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
cda0dd78
MH		 1898 if (!skb)
1899 return -ENOMEM;
1900
4df864c1 1901 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1902 hdr->evt = HCI_EV_CMD_COMPLETE;
1903 hdr->plen = sizeof(*evt) + 1;
1904
4df864c1 1905 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1906 evt->ncmd = 0x01;
1907 evt->opcode = cpu_to_le16(opcode);
1908
634fef61 1909 skb_put_u8(skb, 0x00);
cda0dd78 1910
618e8bc2 1911 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1912
1913 return hci_recv_frame(hdev, skb);
1914}
1915
1916static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1917 int count)
1918{
1919 /* When the device is in bootloader mode, then it can send
1920 * events via the bulk endpoint. These events are treated the
1921 * same way as the ones received from the interrupt endpoint.
1922 */
1923 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1924 return btusb_recv_intr(data, buffer, count);
1925
1926 return btusb_recv_bulk(data, buffer, count);
1927}
1928
ccd6da2a
MH		 1929static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1930 unsigned int len)
1931{
1932 const struct intel_bootup *evt = ptr;
1933
1934 if (len != sizeof(*evt))
1935 return;
1936
1937 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1938 smp_mb__after_atomic();
1939 wake_up_bit(&data->flags, BTUSB_BOOTING);
1940 }
1941}
1942
1943static void btusb_intel_secure_send_result(struct btusb_data *data,
1944 const void *ptr, unsigned int len)
1945{
1946 const struct intel_secure_send_result *evt = ptr;
1947
1948 if (len != sizeof(*evt))
1949 return;
1950
1951 if (evt->result)
1952 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1953
1954 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1955 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1956 smp_mb__after_atomic();
1957 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1958 }
1959}
1960
cda0dd78
MH		 1961static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1962{
1963 struct btusb_data *data = hci_get_drvdata(hdev);
1964
1965 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1966 struct hci_event_hdr *hdr = (void *)skb->data;
1967
ccd6da2a
MH		 1968 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1969 hdr->plen > 0) {
1970 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1971 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1972
1973 switch (skb->data[2]) {
1974 case 0x02:
1975 /* When switching to the operational firmware
1976 * the device sends a vendor specific event
1977 * indicating that the bootup completed.
1978 */
1979 btusb_intel_bootup(data, ptr, len);
1980 break;
1981 case 0x06:
1982 /* When the firmware loading completes the
1983 * device sends out a vendor specific event
1984 * indicating the result of the firmware
1985 * loading.
1986 */
1987 btusb_intel_secure_send_result(data, ptr, len);
1988 break;
fad70972 1989 }
cda0dd78
MH		 1990 }
1991 }
1992
1993 return hci_recv_frame(hdev, skb);
1994}
1995
1996static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1997{
1998 struct btusb_data *data = hci_get_drvdata(hdev);
1999 struct urb *urb;
2000
2001 BT_DBG("%s", hdev->name);
2002
618e8bc2 2003 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 2004 case HCI_COMMAND_PKT:
2005 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2006 struct hci_command_hdr *cmd = (void *)skb->data;
2007 __u16 opcode = le16_to_cpu(cmd->opcode);
2008
2009 /* When in bootloader mode and the command 0xfc09
2010 * is received, it needs to be send down the
2011 * bulk endpoint. So allocate a bulk URB instead.
2012 */
2013 if (opcode == 0xfc09)
2014 urb = alloc_bulk_urb(hdev, skb);
2015 else
2016 urb = alloc_ctrl_urb(hdev, skb);
2017
2018 /* When the 0xfc01 command is issued to boot into
2019 * the operational firmware, it will actually not
2020 * send a command complete event. To keep the flow
2021 * control working inject that event here.
2022 */
2023 if (opcode == 0xfc01)
2024 inject_cmd_complete(hdev, opcode);
2025 } else {
2026 urb = alloc_ctrl_urb(hdev, skb);
2027 }
2028 if (IS_ERR(urb))
2029 return PTR_ERR(urb);
2030
2031 hdev->stat.cmd_tx++;
2032 return submit_or_queue_tx_urb(hdev, urb);
2033
2034 case HCI_ACLDATA_PKT:
2035 urb = alloc_bulk_urb(hdev, skb);
2036 if (IS_ERR(urb))
2037 return PTR_ERR(urb);
2038
2039 hdev->stat.acl_tx++;
2040 return submit_or_queue_tx_urb(hdev, urb);
2041
2042 case HCI_SCODATA_PKT:
2043 if (hci_conn_num(hdev, SCO_LINK) < 1)
2044 return -ENODEV;
2045
2046 urb = alloc_isoc_urb(hdev, skb);
2047 if (IS_ERR(urb))
2048 return PTR_ERR(urb);
2049
2050 hdev->stat.sco_tx++;
2051 return submit_tx_urb(hdev, urb);
2052 }
2053
2054 return -EILSEQ;
2055}
2056
cda0dd78
MH		 2057static int btusb_setup_intel_new(struct hci_dev *hdev)
2058{
cda0dd78 2059 struct btusb_data *data = hci_get_drvdata(hdev);
6c483de1 2060 struct intel_version ver;
faf174d2 2061 struct intel_boot_params params;
cda0dd78 2062 const struct firmware *fw;
e5889af6 2063 u32 boot_param;
cda0dd78
MH		 2064 char fwname[64];
2065 ktime_t calltime, delta, rettime;
2066 unsigned long long duration;
2067 int err;
2068
2069 BT_DBG("%s", hdev->name);
2070
04d729b8
THJA		 2071 /* Set the default boot parameter to 0x0 and it is updated to
2072 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2073 * command while downloading the firmware.
2074 */
2075 boot_param = 0x00000000;
e5889af6 2076
cda0dd78
MH		 2077 calltime = ktime_get();
2078
2079 /* Read the Intel version information to determine if the device
2080 * is in bootloader mode or if it already has operational firmware
2081 * loaded.
2082 */
6c483de1
LP		 2083 err = btintel_read_version(hdev, &ver);
2084 if (err)
2085 return err;
cda0dd78
MH		 2086
2087 /* The hardware platform number has a fixed value of 0x37 and
2088 * for now only accept this single value.
2089 */
6c483de1 2090 if (ver.hw_platform != 0x37) {
85418fef
MH		 2091 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2092 ver.hw_platform);
cda0dd78
MH		 2093 return -EINVAL;
2094 }
2095
9268834b
THJA		 2096 /* Check for supported iBT hardware variants of this firmware
2097 * loading method.
a0af53b5
THJA		 2098 *
2099 * This check has been put in place to ensure correct forward
2100 * compatibility options when newer hardware variants come along.
cda0dd78 2101 */
9268834b
THJA		 2102 switch (ver.hw_variant) {
2103 case 0x0b: /* SfP */
2104 case 0x0c: /* WsP */
86a6129a 2105 case 0x11: /* JfP */
de766142 2106 case 0x12: /* ThP */
1ce0cec1
THJA		 2107 case 0x13: /* HrP */
2108 case 0x14: /* QnJ, IcP */
9268834b
THJA		 2109 break;
2110 default:
85418fef
MH		 2111 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2112 ver.hw_variant);
cda0dd78
MH		 2113 return -EINVAL;
2114 }
2115
6c483de1 2116 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2117
2118 /* The firmware variant determines if the device is in bootloader
2119 * mode or is running operational firmware. The value 0x06 identifies
2120 * the bootloader and the value 0x23 identifies the operational
2121 * firmware.
2122 *
2123 * When the operational firmware is already present, then only
2124 * the check for valid Bluetooth device address is needed. This
2125 * determines if the device will be added as configured or
2126 * unconfigured controller.
2127 *
2128 * It is not possible to use the Secure Boot Parameters in this
2129 * case since that command is only available in bootloader mode.
2130 */
6c483de1 2131 if (ver.fw_variant == 0x23) {
cda0dd78 2132 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2133 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2134 return 0;
2135 }
2136
2137 /* If the device is not in bootloader mode, then the only possible
2138 * choice is to return an error and abort the device initialization.
2139 */
6c483de1 2140 if (ver.fw_variant != 0x06) {
85418fef
MH		 2141 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2142 ver.fw_variant);
cda0dd78
MH		 2143 return -ENODEV;
2144 }
2145
cda0dd78
MH		 2146 /* Read the secure boot parameters to identify the operating
2147 * details of the bootloader.
2148 */
faf174d2
THJA		 2149 err = btintel_read_boot_params(hdev, &params);
2150 if (err)
2151 return err;
cda0dd78
MH		 2152
2153 /* It is required that every single firmware fragment is acknowledged
2154 * with a command complete event. If the boot parameters indicate
2155 * that this bootloader does not send them, then abort the setup.
2156 */
faf174d2 2157 if (params.limited_cce != 0x00) {
85418fef
MH		 2158 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2159 params.limited_cce);
cda0dd78
MH		 2160 return -EINVAL;
2161 }
2162
2163 /* If the OTP has no valid Bluetooth device address, then there will
2164 * also be no valid address for the operational firmware.
2165 */
faf174d2 2166 if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
2064ee33 2167 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2168 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2169 }
2170
2171 /* With this Intel bootloader only the hardware variant and device
af3715e5
J		 2172 * revision information are used to select the right firmware for SfP
2173 * and WsP.
cda0dd78 2174 *
230b04ac
THJA		 2175 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2176 *
2177 * Currently the supported hardware variants are:
2178 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2179 * 12 (0x0c) for iBT3.5 (WsP)
af3715e5
J		 2180 *
2181 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2182 * variant, HW revision and FW revision, as these are dependent on CNVi
2183 * and RF Combination.
2184 *
86a6129a
THJA		 2185 * 17 (0x11) for iBT3.5 (JfP)
2186 * 18 (0x12) for iBT3.5 (ThP)
af3715e5
J		 2187 *
2188 * The firmware file name for these will be
2189 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2190 *
cda0dd78 2191 */
af3715e5
J		 2192 switch (ver.hw_variant) {
2193 case 0x0b: /* SfP */
2194 case 0x0c: /* WsP */
2195 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2196 le16_to_cpu(ver.hw_variant),
faf174d2 2197 le16_to_cpu(params.dev_revid));
af3715e5
J		 2198 break;
2199 case 0x11: /* JfP */
2200 case 0x12: /* ThP */
1ce0cec1
THJA		 2201 case 0x13: /* HrP */
2202 case 0x14: /* QnJ, IcP */
af3715e5
J		 2203 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2204 le16_to_cpu(ver.hw_variant),
2205 le16_to_cpu(ver.hw_revision),
2206 le16_to_cpu(ver.fw_revision));
2207 break;
2208 default:
85418fef 2209 bt_dev_err(hdev, "Unsupported Intel firmware naming");
af3715e5
J		 2210 return -EINVAL;
2211 }
cda0dd78
MH		 2212
2213 err = request_firmware(&fw, fwname, &hdev->dev);
2214 if (err < 0) {
85418fef 2215 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
cda0dd78
MH		 2216 return err;
2217 }
2218
2064ee33 2219 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2220
52cc9168
THJA		 2221 /* Save the DDC file name for later use to apply once the firmware
2222 * downloading is done.
2223 */
af3715e5
J		 2224 switch (ver.hw_variant) {
2225 case 0x0b: /* SfP */
2226 case 0x0c: /* WsP */
2227 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2228 le16_to_cpu(ver.hw_variant),
faf174d2 2229 le16_to_cpu(params.dev_revid));
af3715e5
J		 2230 break;
2231 case 0x11: /* JfP */
2232 case 0x12: /* ThP */
1ce0cec1
THJA		 2233 case 0x13: /* HrP */
2234 case 0x14: /* QnJ, IcP */
af3715e5
J		 2235 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2236 le16_to_cpu(ver.hw_variant),
2237 le16_to_cpu(ver.hw_revision),
2238 le16_to_cpu(ver.fw_revision));
2239 break;
2240 default:
85418fef 2241 bt_dev_err(hdev, "Unsupported Intel firmware naming");
af3715e5
J		 2242 return -EINVAL;
2243 }
52cc9168 2244
cda0dd78 2245 if (fw->size < 644) {
85418fef
MH		 2246 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2247 fw->size);
cda0dd78
MH		 2248 err = -EBADF;
2249 goto done;
2250 }
2251
2252 set_bit(BTUSB_DOWNLOADING, &data->flags);
2253
fbbe83c5
THJA		 2254 /* Start firmware downloading and get boot parameter */
2255 err = btintel_download_firmware(hdev, fw, &boot_param);
2256 if (err < 0)
cda0dd78 2257 goto done;
cda0dd78 2258
ce6bb929
MH		 2259 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2260
2064ee33 2261 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2262
cda0dd78
MH		 2263 /* Before switching the device into operational mode and with that
2264 * booting the loaded firmware, wait for the bootloader notification
2265 * that all fragments have been successfully received.
2266 *
a087a98e
JH		 2267 * When the event processing receives the notification, then the
2268 * BTUSB_DOWNLOADING flag will be cleared.
2269 *
2270 * The firmware loading should not take longer than 5 seconds
2271 * and thus just timeout if that happens and fail the setup
2272 * of this device.
cda0dd78 2273 */
129a7693
JH		 2274 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2275 TASK_INTERRUPTIBLE,
2276 msecs_to_jiffies(5000));
f0a70a04 2277 if (err == -EINTR) {
85418fef 2278 bt_dev_err(hdev, "Firmware loading interrupted");
a087a98e
JH		 2279 goto done;
2280 }
cda0dd78 2281
a087a98e 2282 if (err) {
85418fef 2283 bt_dev_err(hdev, "Firmware loading timeout");
a087a98e
JH		 2284 err = -ETIMEDOUT;
2285 goto done;
cda0dd78
MH		 2286 }
2287
2288 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
85418fef 2289 bt_dev_err(hdev, "Firmware loading failed");
cda0dd78
MH		 2290 err = -ENOEXEC;
2291 goto done;
2292 }
2293
2294 rettime = ktime_get();
2295 delta = ktime_sub(rettime, calltime);
2296 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2297
2064ee33 2298 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2299
2300done:
2301 release_firmware(fw);
2302
2303 if (err < 0)
2304 return err;
2305
2306 calltime = ktime_get();
2307
2308 set_bit(BTUSB_BOOTING, &data->flags);
2309
e5889af6
THJA		 2310 err = btintel_send_intel_reset(hdev, boot_param);
2311 if (err)
2312 return err;
cda0dd78
MH		 2313
2314 /* The bootloader will not indicate when the device is ready. This
2315 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2316 *
2317 * Booting into operational firmware should not take longer than
2318 * 1 second. However if that happens, then just fail the setup
2319 * since something went wrong.
cda0dd78 2320 */
2064ee33 2321 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2322
129a7693
JH		 2323 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2324 TASK_INTERRUPTIBLE,
2325 msecs_to_jiffies(1000));
cda0dd78 2326
f0a70a04 2327 if (err == -EINTR) {
85418fef 2328 bt_dev_err(hdev, "Device boot interrupted");
fad70972
JH		 2329 return -EINTR;
2330 }
cda0dd78 2331
fad70972 2332 if (err) {
85418fef 2333 bt_dev_err(hdev, "Device boot timeout");
fad70972 2334 return -ETIMEDOUT;
cda0dd78
MH		 2335 }
2336
2337 rettime = ktime_get();
2338 delta = ktime_sub(rettime, calltime);
2339 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2340
2064ee33 2341 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2342
2343 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2344
52cc9168
THJA		 2345 /* Once the device is running in operational mode, it needs to apply
2346 * the device configuration (DDC) parameters.
2347 *
2348 * The device can work without DDC parameters, so even if it fails
2349 * to load the file, no need to fail the setup.
2350 */
e924d3d6 2351 btintel_load_ddc_config(hdev, fwname);
52cc9168 2352
213445b2
MH		 2353 /* Set the event mask for Intel specific vendor events. This enables
2354 * a few extra events that are useful during general operation. It
2355 * does not enable any debugging related events.
2356 *
2357 * The device will function correctly without these events enabled
2358 * and thus no need to fail the setup.
2359 */
2360 btintel_set_event_mask(hdev, false);
2361
cda0dd78
MH		 2362 return 0;
2363}
2364
bfbd45e9
THJA		 2365static int btusb_shutdown_intel(struct hci_dev *hdev)
2366{
2367 struct sk_buff *skb;
2368 long ret;
2369
1313bccf
AB		 2370 /* In the shutdown sequence where Bluetooth is turned off followed
2371 * by WiFi being turned off, turning WiFi back on causes issue with
2372 * the RF calibration.
2373 *
2374 * To ensure that any RF activity has been stopped, issue HCI Reset
2375 * command to clear all ongoing activity including advertising,
2376 * scanning etc.
2377 */
2378 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2379 if (IS_ERR(skb)) {
2380 ret = PTR_ERR(skb);
2381 bt_dev_err(hdev, "HCI reset during shutdown failed");
2382 return ret;
2383 }
2384 kfree_skb(skb);
2385
bfbd45e9
THJA		 2386 /* Some platforms have an issue with BT LED when the interface is
2387 * down or BT radio is turned off, which takes 5 seconds to BT LED
2388 * goes off. This command turns off the BT LED immediately.
2389 */
2390 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2391 if (IS_ERR(skb)) {
2392 ret = PTR_ERR(skb);
85418fef 2393 bt_dev_err(hdev, "turning off Intel device LED failed");
bfbd45e9
THJA		 2394 return ret;
2395 }
2396 kfree_skb(skb);
2397
2398 return 0;
2399}
2400
a4ccc9e3
RJ		 2401#ifdef CONFIG_PM
2402/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2403static int marvell_config_oob_wake(struct hci_dev *hdev)
2404{
2405 struct sk_buff *skb;
2406 struct btusb_data *data = hci_get_drvdata(hdev);
2407 struct device *dev = &data->udev->dev;
2408 u16 pin, gap, opcode;
2409 int ret;
2410 u8 cmd[5];
2411
2412 /* Move on if no wakeup pin specified */
2413 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2414 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2415 return 0;
2416
2417 /* Vendor specific command to configure a GPIO as wake-up pin */
2418 opcode = hci_opcode_pack(0x3F, 0x59);
2419 cmd[0] = opcode & 0xFF;
2420 cmd[1] = opcode >> 8;
2421 cmd[2] = 2; /* length of parameters that follow */
2422 cmd[3] = pin;
2423 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2424
2425 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2426 if (!skb) {
2427 bt_dev_err(hdev, "%s: No memory\n", __func__);
2428 return -ENOMEM;
2429 }
2430
59ae1d12 2431 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 2432 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2433
2434 ret = btusb_send_frame(hdev, skb);
2435 if (ret) {
2436 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2437 kfree_skb(skb);
2438 return ret;
2439 }
2440
2441 return 0;
2442}
2443#endif
2444
ae8df494
AK		 2445static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2446 const bdaddr_t *bdaddr)
2447{
2448 struct sk_buff *skb;
2449 u8 buf[8];
2450 long ret;
2451
2452 buf[0] = 0xfe;
2453 buf[1] = sizeof(bdaddr_t);
2454 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2455
2456 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2457 if (IS_ERR(skb)) {
2458 ret = PTR_ERR(skb);
2064ee33
MH		 2459 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2460 ret);
ae8df494
AK		 2461 return ret;
2462 }
2463 kfree_skb(skb);
2464
2465 return 0;
2466}
2467
5859223e
TK		 2468static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2469 const bdaddr_t *bdaddr)
2470{
2471 struct sk_buff *skb;
2472 u8 buf[10];
2473 long ret;
2474
2475 buf[0] = 0x01;
2476 buf[1] = 0x01;
2477 buf[2] = 0x00;
2478 buf[3] = sizeof(bdaddr_t);
2479 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2480
2481 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2482 if (IS_ERR(skb)) {
2483 ret = PTR_ERR(skb);
2064ee33 2484 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 2485 return ret;
2486 }
2487 kfree_skb(skb);
2488
2489 return 0;
2490}
2491
3267c884
KBYT		 2492#define QCA_DFU_PACKET_LEN 4096
2493
2494#define QCA_GET_TARGET_VERSION 0x09
2495#define QCA_CHECK_STATUS 0x05
2496#define QCA_DFU_DOWNLOAD 0x01
2497
2498#define QCA_SYSCFG_UPDATED 0x40
2499#define QCA_PATCH_UPDATED 0x80
2500#define QCA_DFU_TIMEOUT 3000
2501
2502struct qca_version {
2503 __le32 rom_version;
2504 __le32 patch_version;
2505 __le32 ram_version;
2506 __le32 ref_clock;
2507 __u8 reserved[4];
2508} __packed;
2509
2510struct qca_rampatch_version {
2511 __le16 rom_version;
2512 __le16 patch_version;
2513} __packed;
2514
2515struct qca_device_info {
bf906b3d
KBYT		 2516 u32 rom_version;
2517 u8 rampatch_hdr; /* length of header in rampatch */
2518 u8 nvm_hdr; /* length of header in NVM */
2519 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2520};
2521
2522static const struct qca_device_info qca_devices_table[] = {
2523 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2524 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2525 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2526 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2527 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2528 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2529};
2530
803cdb8c 2531static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3267c884
KBYT		 2532 void *data, u16 size)
2533{
3267c884
KBYT		 2534 int pipe, err;
2535 u8 *buf;
2536
2537 buf = kmalloc(size, GFP_KERNEL);
2538 if (!buf)
2539 return -ENOMEM;
2540
2541 /* Found some of USB hosts have IOT issues with ours so that we should
2542 * not wait until HCI layer is ready.
2543 */
2544 pipe = usb_rcvctrlpipe(udev, 0);
2545 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2546 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2547 if (err < 0) {
803cdb8c 2548 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 2549 goto done;
2550 }
2551
2552 memcpy(data, buf, size);
2553
2554done:
2555 kfree(buf);
2556
2557 return err;
2558}
2559
2560static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2561 const struct firmware *firmware,
2562 size_t hdr_size)
2563{
2564 struct btusb_data *btdata = hci_get_drvdata(hdev);
2565 struct usb_device *udev = btdata->udev;
2566 size_t count, size, sent = 0;
2567 int pipe, len, err;
2568 u8 *buf;
2569
2570 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2571 if (!buf)
2572 return -ENOMEM;
2573
2574 count = firmware->size;
2575
2576 size = min_t(size_t, count, hdr_size);
2577 memcpy(buf, firmware->data, size);
2578
2579 /* USB patches should go down to controller through USB path
2580 * because binary format fits to go down through USB channel.
2581 * USB control path is for patching headers and USB bulk is for
2582 * patch body.
2583 */
2584 pipe = usb_sndctrlpipe(udev, 0);
2585 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2586 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2587 if (err < 0) {
2064ee33 2588 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 2589 goto done;
2590 }
2591
2592 sent += size;
2593 count -= size;
2594
2595 while (count) {
2596 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2597
2598 memcpy(buf, firmware->data + sent, size);
2599
2600 pipe = usb_sndbulkpipe(udev, 0x02);
2601 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2602 QCA_DFU_TIMEOUT);
2603 if (err < 0) {
2064ee33
MH		 2604 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2605 sent, firmware->size, err);
3267c884
KBYT		 2606 break;
2607 }
2608
2609 if (size != len) {
2064ee33 2610 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 2611 err = -EILSEQ;
2612 break;
2613 }
2614
2615 sent += size;
2616 count -= size;
2617 }
2618
2619done:
2620 kfree(buf);
2621 return err;
2622}
2623
2624static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2625 struct qca_version *ver,
2626 const struct qca_device_info *info)
2627{
2628 struct qca_rampatch_version *rver;
2629 const struct firmware *fw;
bf906b3d
KBYT		 2630 u32 ver_rom, ver_patch;
2631 u16 rver_rom, rver_patch;
3267c884
KBYT		 2632 char fwname[64];
2633 int err;
2634
bf906b3d
KBYT		 2635 ver_rom = le32_to_cpu(ver->rom_version);
2636 ver_patch = le32_to_cpu(ver->patch_version);
2637
2638 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2639
2640 err = request_firmware(&fw, fwname, &hdev->dev);
2641 if (err) {
2064ee33
MH		 2642 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2643 fwname, err);
3267c884
KBYT		 2644 return err;
2645 }
2646
2064ee33 2647 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 2648
3267c884 2649 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2650 rver_rom = le16_to_cpu(rver->rom_version);
2651 rver_patch = le16_to_cpu(rver->patch_version);
2652
2064ee33
MH		 2653 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2654 "firmware rome 0x%x build 0x%x",
2655 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 2656
bf906b3d 2657 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 2658 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 2659 err = -EINVAL;
2660 goto done;
2661 }
2662
2663 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2664
2665done:
2666 release_firmware(fw);
2667
2668 return err;
2669}
2670
2671static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2672 struct qca_version *ver,
2673 const struct qca_device_info *info)
2674{
2675 const struct firmware *fw;
2676 char fwname[64];
2677 int err;
2678
2679 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2680 le32_to_cpu(ver->rom_version));
2681
2682 err = request_firmware(&fw, fwname, &hdev->dev);
2683 if (err) {
2064ee33
MH		 2684 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2685 fwname, err);
3267c884
KBYT		 2686 return err;
2687 }
2688
2064ee33 2689 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 2690
2691 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2692
2693 release_firmware(fw);
2694
2695 return err;
2696}
2697
803cdb8c
TI		 2698/* identify the ROM version and check whether patches are needed */
2699static bool btusb_qca_need_patch(struct usb_device *udev)
2700{
2701 struct qca_version ver;
2702
2703 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
2704 sizeof(ver)) < 0)
2705 return false;
2706 /* only low ROM versions need patches */
2707 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
2708}
2709
3267c884
KBYT		 2710static int btusb_setup_qca(struct hci_dev *hdev)
2711{
803cdb8c
TI		 2712 struct btusb_data *btdata = hci_get_drvdata(hdev);
2713 struct usb_device *udev = btdata->udev;
3267c884
KBYT		 2714 const struct qca_device_info *info = NULL;
2715 struct qca_version ver;
bf906b3d 2716 u32 ver_rom;
3267c884
KBYT		 2717 u8 status;
2718 int i, err;
2719
803cdb8c 2720 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2721 sizeof(ver));
3267c884
KBYT		 2722 if (err < 0)
2723 return err;
2724
bf906b3d 2725 ver_rom = le32_to_cpu(ver.rom_version);
803cdb8c
TI		 2726 /* Don't care about high ROM versions */
2727 if (ver_rom & ~0xffffU)
2728 return 0;
2729
3267c884 2730 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2731 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2732 info = &qca_devices_table[i];
2733 }
2734 if (!info) {
2064ee33 2735 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 2736 return -ENODEV;
2737 }
2738
803cdb8c 2739 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3267c884
KBYT		 2740 sizeof(status));
2741 if (err < 0)
2742 return err;
2743
2744 if (!(status & QCA_PATCH_UPDATED)) {
2745 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2746 if (err < 0)
2747 return err;
2748 }
2749
2750 if (!(status & QCA_SYSCFG_UPDATED)) {
2751 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2752 if (err < 0)
2753 return err;
2754 }
2755
2756 return 0;
2757}
2758
9d08f504
MH		 2759#ifdef CONFIG_BT_HCIBTUSB_BCM
2760static inline int __set_diag_interface(struct hci_dev *hdev)
2761{
2762 struct btusb_data *data = hci_get_drvdata(hdev);
2763 struct usb_interface *intf = data->diag;
2764 int i;
2765
2766 if (!data->diag)
2767 return -ENODEV;
2768
2769 data->diag_tx_ep = NULL;
2770 data->diag_rx_ep = NULL;
2771
2772 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2773 struct usb_endpoint_descriptor *ep_desc;
2774
2775 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2776
2777 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2778 data->diag_tx_ep = ep_desc;
2779 continue;
2780 }
2781
2782 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2783 data->diag_rx_ep = ep_desc;
2784 continue;
2785 }
2786 }
2787
2788 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 2789 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 2790 return -ENODEV;
2791 }
2792
2793 return 0;
2794}
2795
2796static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2797{
2798 struct btusb_data *data = hci_get_drvdata(hdev);
2799 struct sk_buff *skb;
2800 struct urb *urb;
2801 unsigned int pipe;
2802
2803 if (!data->diag_tx_ep)
2804 return ERR_PTR(-ENODEV);
2805
2806 urb = usb_alloc_urb(0, GFP_KERNEL);
2807 if (!urb)
2808 return ERR_PTR(-ENOMEM);
2809
2810 skb = bt_skb_alloc(2, GFP_KERNEL);
2811 if (!skb) {
2812 usb_free_urb(urb);
2813 return ERR_PTR(-ENOMEM);
2814 }
2815
634fef61
JB		 2816 skb_put_u8(skb, 0xf0);
2817 skb_put_u8(skb, enable);
9d08f504
MH		 2818
2819 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2820
2821 usb_fill_bulk_urb(urb, data->udev, pipe,
2822 skb->data, skb->len, btusb_tx_complete, skb);
2823
2824 skb->dev = (void *)hdev;
2825
2826 return urb;
2827}
2828
2829static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2830{
2831 struct btusb_data *data = hci_get_drvdata(hdev);
2832 struct urb *urb;
2833
2834 if (!data->diag)
2835 return -ENODEV;
2836
2837 if (!test_bit(HCI_RUNNING, &hdev->flags))
2838 return -ENETDOWN;
2839
2840 urb = alloc_diag_urb(hdev, enable);
2841 if (IS_ERR(urb))
2842 return PTR_ERR(urb);
2843
2844 return submit_or_queue_tx_urb(hdev, urb);
2845}
2846#endif
2847
fd913ef7
RJ		 2848#ifdef CONFIG_PM
2849static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2850{
2851 struct btusb_data *data = priv;
2852
2853 pm_wakeup_event(&data->udev->dev, 0);
017789f3 2854 pm_system_wakeup();
fd913ef7
RJ		 2855
2856 /* Disable only if not already disabled (keep it balanced) */
2857 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2858 disable_irq_nosync(irq);
2859 disable_irq_wake(irq);
2860 }
2861 return IRQ_HANDLED;
2862}
2863
2864static const struct of_device_id btusb_match_table[] = {
2865 { .compatible = "usb1286,204e" },
2866 { }
2867};
2868MODULE_DEVICE_TABLE(of, btusb_match_table);
2869
2870/* Use an oob wakeup pin? */
2871static int btusb_config_oob_wake(struct hci_dev *hdev)
2872{
2873 struct btusb_data *data = hci_get_drvdata(hdev);
2874 struct device *dev = &data->udev->dev;
2875 int irq, ret;
2876
2877 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2878
2879 if (!of_match_device(btusb_match_table, dev))
2880 return 0;
2881
2882 /* Move on if no IRQ specified */
2883 irq = of_irq_get_byname(dev->of_node, "wakeup");
2884 if (irq <= 0) {
2885 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2886 return 0;
2887 }
2888
2889 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2890 0, "OOB Wake-on-BT", data);
2891 if (ret) {
2892 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2893 return ret;
2894 }
2895
2896 ret = device_init_wakeup(dev, true);
2897 if (ret) {
2898 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2899 return ret;
2900 }
2901
2902 data->oob_wake_irq = irq;
2903 disable_irq(irq);
2904 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2905 return 0;
2906}
2907#endif
2908
fc549102
HG		 2909static void btusb_check_needs_reset_resume(struct usb_interface *intf)
2910{
2911 if (dmi_check_system(btusb_needs_reset_resume_table))
2912 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
2913}
2914
5e23b923 2915static int btusb_probe(struct usb_interface *intf,
89e7533d 2916 const struct usb_device_id *id)
5e23b923
MH		 2917{
2918 struct usb_endpoint_descriptor *ep_desc;
2919 struct btusb_data *data;
2920 struct hci_dev *hdev;
22f8e9db 2921 unsigned ifnum_base;
5e23b923
MH		 2922 int i, err;
2923
2924 BT_DBG("intf %p id %p", intf, id);
2925
cfeb4145 2926 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2927 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2928 if (!(id->driver_info & BTUSB_IFNUM_2))
2929 return -ENODEV;
2930 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2931 return -ENODEV;
2932 }
2933
2934 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2935
2936 if (!id->driver_info) {
2937 const struct usb_device_id *match;
89e7533d 2938
5e23b923
MH		 2939 match = usb_match_id(intf, blacklist_table);
2940 if (match)
2941 id = match;
2942 }
2943
cfeb4145
MH		 2944 if (id->driver_info == BTUSB_IGNORE)
2945 return -ENODEV;
2946
2d25f8b4
SL		 2947 if (id->driver_info & BTUSB_ATH3012) {
2948 struct usb_device *udev = interface_to_usbdev(intf);
2949
2950 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 2951 * patch and sysconfig files
2952 */
803cdb8c
TI		 2953 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
2954 !btusb_qca_need_patch(udev))
2d25f8b4
SL		 2955 return -ENODEV;
2956 }
2957
98921dbd 2958 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2959 if (!data)
2960 return -ENOMEM;
2961
2962 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2963 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2964
2965 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2966 data->intr_ep = ep_desc;
2967 continue;
2968 }
2969
2970 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2971 data->bulk_tx_ep = ep_desc;
2972 continue;
2973 }
2974
2975 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2976 data->bulk_rx_ep = ep_desc;
2977 continue;
2978 }
2979 }
2980
98921dbd 2981 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2982 return -ENODEV;
5e23b923 2983
893ba544
MH		 2984 if (id->driver_info & BTUSB_AMP) {
2985 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2986 data->cmdreq = 0x2b;
2987 } else {
2988 data->cmdreq_type = USB_TYPE_CLASS;
2989 data->cmdreq = 0x00;
2990 }
7a9d4020 2991
5e23b923 2992 data->udev = interface_to_usbdev(intf);
5fbcd260 2993 data->intf = intf;
5e23b923 2994
5e23b923 2995 INIT_WORK(&data->work, btusb_work);
7bee549e 2996 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2997 init_usb_anchor(&data->deferred);
2998 init_usb_anchor(&data->tx_anchor);
7bee549e 2999 spin_lock_init(&data->txlock);
5e23b923 3000
5e23b923
MH		 3001 init_usb_anchor(&data->intr_anchor);
3002 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 3003 init_usb_anchor(&data->isoc_anchor);
9d08f504 3004 init_usb_anchor(&data->diag_anchor);
803b5836 3005 spin_lock_init(&data->rxlock);
5e23b923 3006
cda0dd78
MH		 3007 if (id->driver_info & BTUSB_INTEL_NEW) {
3008 data->recv_event = btusb_recv_event_intel;
3009 data->recv_bulk = btusb_recv_bulk_intel;
3010 set_bit(BTUSB_BOOTLOADER, &data->flags);
3011 } else {
3012 data->recv_event = hci_recv_frame;
3013 data->recv_bulk = btusb_recv_bulk;
3014 }
2cbd3f5c 3015
5e23b923 3016 hdev = hci_alloc_dev();
98921dbd 3017 if (!hdev)
5e23b923 3018 return -ENOMEM;
5e23b923 3019
c13854ce 3020 hdev->bus = HCI_USB;
155961e8 3021 hci_set_drvdata(hdev, data);
5e23b923 3022
893ba544
MH		 3023 if (id->driver_info & BTUSB_AMP)
3024 hdev->dev_type = HCI_AMP;
3025 else
ca8bee5d 3026 hdev->dev_type = HCI_PRIMARY;
893ba544 3027
5e23b923
MH		 3028 data->hdev = hdev;
3029
3030 SET_HCIDEV_DEV(hdev, &intf->dev);
3031
9f8f962c
MH		 3032 hdev->open = btusb_open;
3033 hdev->close = btusb_close;
3034 hdev->flush = btusb_flush;
3035 hdev->send = btusb_send_frame;
3036 hdev->notify = btusb_notify;
3037
fd913ef7
RJ		 3038#ifdef CONFIG_PM
3039 err = btusb_config_oob_wake(hdev);
3040 if (err)
3041 goto out_free_dev;
a4ccc9e3
RJ		 3042
3043 /* Marvell devices may need a specific chip configuration */
3044 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3045 err = marvell_config_oob_wake(hdev);
3046 if (err)
3047 goto out_free_dev;
3048 }
fd913ef7 3049#endif
418678b0
SJ		 3050 if (id->driver_info & BTUSB_CW6622)
3051 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3052
6c9d435d
MH		 3053 if (id->driver_info & BTUSB_BCM2045)
3054 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3055
9f8f962c
MH		 3056 if (id->driver_info & BTUSB_BCM92035)
3057 hdev->setup = btusb_setup_bcm92035;
5e23b923 3058
c2bfb100 3059#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 3060 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 3061 hdev->manufacturer = 15;
c2bfb100 3062 hdev->setup = btbcm_setup_patchram;
9d08f504 3063 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3064 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3065
3066 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3067 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3068 }
10d4c673 3069
9d08f504 3070 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 3071 hdev->manufacturer = 15;
c2bfb100 3072 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3073 hdev->set_diag = btusb_bcm_set_diag;
3074
3075 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3076 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3077 }
c2bfb100 3078#endif
17b2772b 3079
cb8d6597 3080 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3081 hdev->manufacturer = 2;
dffd30ee 3082 hdev->setup = btusb_setup_intel;
bfbd45e9 3083 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3084 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3085 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 3086 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3087 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3088 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3089 }
dffd30ee 3090
cda0dd78 3091 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3092 hdev->manufacturer = 2;
cda0dd78
MH		 3093 hdev->send = btusb_send_frame_intel;
3094 hdev->setup = btusb_setup_intel_new;
eeb6abe9 3095 hdev->hw_error = btintel_hw_error;
6d2e50d2 3096 hdev->set_diag = btintel_set_diag;
4185a0f5 3097 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 3098 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
f7785021 3099 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
d8270fbb 3100 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3101 }
3102
ae8df494
AK		 3103 if (id->driver_info & BTUSB_MARVELL)
3104 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3105
661cf88a
MH		 3106 if (id->driver_info & BTUSB_SWAVE) {
3107 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3108 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3109 }
d57dbe77 3110
e4c534bb
MH		 3111 if (id->driver_info & BTUSB_INTEL_BOOT) {
3112 hdev->manufacturer = 2;
40df783d 3113 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3114 }
40df783d 3115
79f0c87d 3116 if (id->driver_info & BTUSB_ATH3012) {
803cdb8c 3117 data->setup_on_usb = btusb_setup_qca;
5859223e 3118 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3119 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3120 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3121 }
5859223e 3122
3267c884
KBYT		 3123 if (id->driver_info & BTUSB_QCA_ROME) {
3124 data->setup_on_usb = btusb_setup_qca;
3125 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
96e58d36 3126 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
fc549102 3127 btusb_check_needs_reset_resume(intf);
3267c884
KBYT		 3128 }
3129
db33c77d 3130#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 3131 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 3132 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 3133
3134 /* Realtek devices lose their updated firmware over suspend,
3135 * but the USB hub doesn't notice any status change.
3136 * Explicitly request a device reset on resume.
3137 */
61f5acea 3138 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
04b8c814 3139 }
db33c77d 3140#endif
a2698a9b 3141
893ba544
MH		 3142 if (id->driver_info & BTUSB_AMP) {
3143 /* AMP controllers do not support SCO packets */
3144 data->isoc = NULL;
3145 } else {
22f8e9db
MH		 3146 /* Interface orders are hardcoded in the specification */
3147 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
459232fc 3148 data->isoc_ifnum = ifnum_base + 1;
893ba544 3149 }
9bfa35fe 3150
7a9d4020 3151 if (!reset)
a6c511c6 3152 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3153
3154 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3155 if (!disable_scofix)
3156 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3157 }
3158
9bfa35fe
MH		 3159 if (id->driver_info & BTUSB_BROKEN_ISOC)
3160 data->isoc = NULL;
3161
7a9d4020
MH		 3162 if (id->driver_info & BTUSB_DIGIANSWER) {
3163 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3164 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3165 }
3166
3167 if (id->driver_info & BTUSB_CSR) {
3168 struct usb_device *udev = data->udev;
81cac64b 3169 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3170
3171 /* Old firmware would otherwise execute USB reset */
81cac64b 3172 if (bcdDevice < 0x117)
a6c511c6 3173 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3174
3175 /* Fake CSR devices with broken commands */
6cafcd95 3176 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3177 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3178
3179 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3180 }
3181
cfeb4145 3182 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3183 struct usb_device *udev = data->udev;
cfeb4145 3184
7a9d4020 3185 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3186 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3187 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3188 }
3189
3a5ef20c
MH		 3190 if (id->driver_info & BTUSB_INTEL_BOOT) {
3191 /* A bug in the bootloader causes that interrupt interface is
3192 * only enabled after receiving SetInterface(0, AltSetting=0).
3193 */
3194 err = usb_set_interface(data->udev, 0, 0);
3195 if (err < 0) {
3196 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3197 goto out_free_dev;
3a5ef20c
MH		 3198 }
3199 }
3200
9bfa35fe
MH		 3201 if (data->isoc) {
3202 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3203 data->isoc, data);
10ab133b
RJ		 3204 if (err < 0)
3205 goto out_free_dev;
9bfa35fe
MH		 3206 }
3207
9d08f504
MH		 3208#ifdef CONFIG_BT_HCIBTUSB_BCM
3209 if (data->diag) {
3210 if (!usb_driver_claim_interface(&btusb_driver,
3211 data->diag, data))
3212 __set_diag_interface(hdev);
3213 else
3214 data->diag = NULL;
3215 }
3216#endif
3217
eff2d68c
HG		 3218 if (enable_autosuspend)
3219 usb_enable_autosuspend(data->udev);
3220
5e23b923 3221 err = hci_register_dev(hdev);
10ab133b
RJ		 3222 if (err < 0)
3223 goto out_free_dev;
5e23b923
MH		 3224
3225 usb_set_intfdata(intf, data);
3226
3227 return 0;
10ab133b
RJ		 3228
3229out_free_dev:
3230 hci_free_dev(hdev);
3231 return err;
5e23b923
MH		 3232}
3233
3234static void btusb_disconnect(struct usb_interface *intf)
3235{
3236 struct btusb_data *data = usb_get_intfdata(intf);
3237 struct hci_dev *hdev;
3238
3239 BT_DBG("intf %p", intf);
3240
3241 if (!data)
3242 return;
3243
3244 hdev = data->hdev;
5fbcd260
MH		 3245 usb_set_intfdata(data->intf, NULL);
3246
3247 if (data->isoc)
3248 usb_set_intfdata(data->isoc, NULL);
5e23b923 3249
9d08f504
MH		 3250 if (data->diag)
3251 usb_set_intfdata(data->diag, NULL);
3252
5e23b923
MH		 3253 hci_unregister_dev(hdev);
3254
9d08f504
MH		 3255 if (intf == data->intf) {
3256 if (data->isoc)
3257 usb_driver_release_interface(&btusb_driver, data->isoc);
3258 if (data->diag)
3259 usb_driver_release_interface(&btusb_driver, data->diag);
3260 } else if (intf == data->isoc) {
3261 if (data->diag)
3262 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3263 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3264 } else if (intf == data->diag) {
3265 usb_driver_release_interface(&btusb_driver, data->intf);
3266 if (data->isoc)
3267 usb_driver_release_interface(&btusb_driver, data->isoc);
3268 }
5fbcd260 3269
fd913ef7
RJ		 3270 if (data->oob_wake_irq)
3271 device_init_wakeup(&data->udev->dev, false);
3272
5e23b923
MH		 3273 hci_free_dev(hdev);
3274}
3275
7bee549e 3276#ifdef CONFIG_PM
6a88adf2
MH		 3277static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3278{
3279 struct btusb_data *data = usb_get_intfdata(intf);
3280
3281 BT_DBG("intf %p", intf);
3282
3283 if (data->suspend_count++)
3284 return 0;
3285
7bee549e 3286 spin_lock_irq(&data->txlock);
5b1b0b81 3287 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3288 set_bit(BTUSB_SUSPENDING, &data->flags);
3289 spin_unlock_irq(&data->txlock);
3290 } else {
3291 spin_unlock_irq(&data->txlock);
3292 data->suspend_count--;
3293 return -EBUSY;
3294 }
3295
6a88adf2
MH		 3296 cancel_work_sync(&data->work);
3297
7bee549e 3298 btusb_stop_traffic(data);
6a88adf2
MH		 3299 usb_kill_anchored_urbs(&data->tx_anchor);
3300
fd913ef7
RJ		 3301 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3302 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3303 enable_irq_wake(data->oob_wake_irq);
3304 enable_irq(data->oob_wake_irq);
3305 }
3306
6a88adf2
MH		 3307 return 0;
3308}
3309
7bee549e
ON		 3310static void play_deferred(struct btusb_data *data)
3311{
3312 struct urb *urb;
3313 int err;
3314
3315 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 3316 usb_anchor_urb(urb, &data->tx_anchor);
3317
7bee549e 3318 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 3319 if (err < 0) {
3320 if (err != -EPERM && err != -ENODEV)
3321 BT_ERR("%s urb %p submission failed (%d)",
3322 data->hdev->name, urb, -err);
3323 kfree(urb->setup_packet);
3324 usb_unanchor_urb(urb);
3325 usb_free_urb(urb);
7bee549e 3326 break;
19cfe912 3327 }
7bee549e
ON		 3328
3329 data->tx_in_flight++;
19cfe912
JC		 3330 usb_free_urb(urb);
3331 }
3332
3333 /* Cleanup the rest deferred urbs. */
3334 while ((urb = usb_get_from_anchor(&data->deferred))) {
3335 kfree(urb->setup_packet);
3336 usb_free_urb(urb);
7bee549e 3337 }
7bee549e
ON		 3338}
3339
6a88adf2
MH		 3340static int btusb_resume(struct usb_interface *intf)
3341{
3342 struct btusb_data *data = usb_get_intfdata(intf);
3343 struct hci_dev *hdev = data->hdev;
7bee549e 3344 int err = 0;
6a88adf2
MH		 3345
3346 BT_DBG("intf %p", intf);
3347
3348 if (--data->suspend_count)
3349 return 0;
3350
fd913ef7
RJ		 3351 /* Disable only if not already disabled (keep it balanced) */
3352 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3353 disable_irq(data->oob_wake_irq);
3354 disable_irq_wake(data->oob_wake_irq);
3355 }
3356
6a88adf2 3357 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3358 goto done;
6a88adf2
MH		 3359
3360 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3361 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3362 if (err < 0) {
3363 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3364 goto failed;
6a88adf2
MH		 3365 }
3366 }
3367
3368 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3369 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3370 if (err < 0) {
6a88adf2 3371 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3372 goto failed;
3373 }
3374
3375 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3376 }
3377
3378 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3379 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3380 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3381 else
3382 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3383 }
3384
7bee549e
ON		 3385 spin_lock_irq(&data->txlock);
3386 play_deferred(data);
3387 clear_bit(BTUSB_SUSPENDING, &data->flags);
3388 spin_unlock_irq(&data->txlock);
3389 schedule_work(&data->work);
3390
6a88adf2 3391 return 0;
7bee549e
ON		 3392
3393failed:
3394 usb_scuttle_anchored_urbs(&data->deferred);
3395done:
3396 spin_lock_irq(&data->txlock);
3397 clear_bit(BTUSB_SUSPENDING, &data->flags);
3398 spin_unlock_irq(&data->txlock);
3399
3400 return err;
6a88adf2 3401}
7bee549e 3402#endif
6a88adf2 3403
5e23b923
MH		 3404static struct usb_driver btusb_driver = {
3405 .name = "btusb",
3406 .probe = btusb_probe,
3407 .disconnect = btusb_disconnect,
7bee549e 3408#ifdef CONFIG_PM
6a88adf2
MH		 3409 .suspend = btusb_suspend,
3410 .resume = btusb_resume,
7bee549e 3411#endif
5e23b923 3412 .id_table = btusb_table,
7bee549e 3413 .supports_autosuspend = 1,
e1f12eb6 3414 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3415};
3416
93f1508c 3417module_usb_driver(btusb_driver);
5e23b923 3418
cfeb4145
MH		 3419module_param(disable_scofix, bool, 0644);
3420MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3421
3422module_param(force_scofix, bool, 0644);
3423MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3424
eff2d68c
HG		 3425module_param(enable_autosuspend, bool, 0644);
3426MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
3427
cfeb4145
MH		 3428module_param(reset, bool, 0644);
3429MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3430
5e23b923
MH		 3431MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3432MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3433MODULE_VERSION(VERSION);
3434MODULE_LICENSE("GPL");
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