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afs: Fix afs_find_server search loop
[mirror_ubuntu-bionic-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
6a50b943 24#include <linux/dmi.h>
5e23b923 25#include <linux/module.h>
5e23b923 26#include <linux/usb.h>
18970430 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;
7a9d4020 45
917a3337 46static bool reset = true;
cfeb4145
MH		 47
48static struct usb_driver btusb_driver;
49
50#define BTUSB_IGNORE 0x01
7a9d4020
MH		 51#define BTUSB_DIGIANSWER 0x02
52#define BTUSB_CSR 0x04
53#define BTUSB_SNIFFER 0x08
54#define BTUSB_BCM92035 0x10
55#define BTUSB_BROKEN_ISOC 0x20
56#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 57#define BTUSB_ATH3012 0x80
dffd30ee 58#define BTUSB_INTEL 0x100
40df783d
MH		 59#define BTUSB_INTEL_BOOT 0x200
60#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 61#define BTUSB_MARVELL 0x800
4fcef8ed 62#define BTUSB_SWAVE 0x1000
cda0dd78 63#define BTUSB_INTEL_NEW 0x2000
893ba544 64#define BTUSB_AMP 0x4000
3267c884 65#define BTUSB_QCA_ROME 0x8000
17b2772b 66#define BTUSB_BCM_APPLE 0x10000
a2698a9b 67#define BTUSB_REALTEK 0x20000
6c9d435d 68#define BTUSB_BCM2045 0x40000
22f8e9db 69#define BTUSB_IFNUM_2 0x80000
418678b0 70#define BTUSB_CW6622 0x100000
5e23b923 71
54265202 72static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 73 /* Generic Bluetooth USB device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
75
893ba544
MH		 76 /* Generic Bluetooth AMP device */
77 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
78
d63b2826
DD		 79 /* Generic Bluetooth USB interface */
80 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
81
1fa6535f 82 /* Apple-specific (Broadcom) devices */
17b2772b 83 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 84 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 85
178c059e
CYC		 86 /* MediaTek MT76x0E */
87 { USB_DEVICE(0x0e8d, 0x763f) },
88
c510eae3 89 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 90 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 91
3cd01976
NI		 92 /* Apple MacBookPro 7,1 */
93 { USB_DEVICE(0x05ac, 0x8213) },
94
0a79f674
CL		 95 /* Apple iMac11,1 */
96 { USB_DEVICE(0x05ac, 0x8215) },
97
9c047157
NI		 98 /* Apple MacBookPro6,2 */
99 { USB_DEVICE(0x05ac, 0x8218) },
100
3e3ede7d
EH		 101 /* Apple MacBookAir3,1, MacBookAir3,2 */
102 { USB_DEVICE(0x05ac, 0x821b) },
103
a63b723d
PAVM		 104 /* Apple MacBookAir4,1 */
105 { USB_DEVICE(0x05ac, 0x821f) },
106
88d377b6
MAP		 107 /* Apple MacBookPro8,2 */
108 { USB_DEVICE(0x05ac, 0x821a) },
109
f78b6826
JK		 110 /* Apple MacMini5,1 */
111 { USB_DEVICE(0x05ac, 0x8281) },
112
cfeb4145 113 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 114 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 115
116 /* Bluetooth Ultraport Module from IBM */
117 { USB_DEVICE(0x04bf, 0x030a) },
118
119 /* ALPS Modules with non-standard id */
120 { USB_DEVICE(0x044e, 0x3001) },
121 { USB_DEVICE(0x044e, 0x3002) },
122
123 /* Ericsson with non-standard id */
124 { USB_DEVICE(0x0bdb, 0x1002) },
125
126 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 127 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 128
d13431ca
WJS		 129 /* Broadcom BCM20702A0 */
130 { USB_DEVICE(0x413c, 0x8197) },
131
d049f4e5
MH		 132 /* Broadcom BCM20702B0 (Dynex/Insignia) */
133 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
134
2faf71ce 135 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
628c26b4
DT		 136 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
2faf71ce 138
a57bac43
CH		 139 /* Broadcom BCM920703 (HTC Vive) */
140 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
142
98514036 143 /* Foxconn - Hon Hai */
6029ddc2
HS		 144 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 146
8f0c304c
MD		 147 /* Lite-On Technology - Broadcom based */
148 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
150
0b880062 151 /* Broadcom devices with vendor specific id */
10d4c673
PG		 152 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
153 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 154
c2aef6e8 155 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 156 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
157 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 158
5bcecf32 159 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 160 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
161 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 162
9113bfd8 163 /* IMC Networks - Broadcom based */
6331c686
MH		 164 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
165 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 166
fdfddc60
WJS		 167 /* Dell Computer - Broadcom based */
168 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
169 .driver_info = BTUSB_BCM_PATCHRAM },
170
1623d0bf
DT		 171 /* Toshiba Corp - Broadcom based */
172 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
173 .driver_info = BTUSB_BCM_PATCHRAM },
174
40df783d 175 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 176 { USB_DEVICE(0x8087, 0x0a5a),
177 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 178
5e23b923
MH		 179 { } /* Terminating entry */
180};
181
182MODULE_DEVICE_TABLE(usb, btusb_table);
183
54265202 184static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 185 /* CSR BlueCore devices */
186 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
187
188 /* Broadcom BCM2033 without firmware */
189 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
190
6c9d435d
MH		 191 /* Broadcom BCM2045 devices */
192 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
193
be93112a 194 /* Atheros 3011 with sflash firmware */
0b880062
AS		 195 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
196 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 197 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 198 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 199 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 200 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 201 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 202
509e7861
CYC		 203 /* Atheros AR9285 Malbec with sflash firmware */
204 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
205
d9f51b51 206 /* Atheros 3012 with sflash firmware */
0b880062
AS		 207 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 212 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 213 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8 214 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 215 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 219 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 220 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 222 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 223 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 224 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 225 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d 226 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062 227 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 228 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 229 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 230 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 231 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 232 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
b5f01a51 233 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 234 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 235 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 236 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 237 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 238 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 239 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 240 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 241 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 242 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 243 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 244 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 245 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 247 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 248 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 249 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 250 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 251 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 252 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 253 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 254 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5 255 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896 256 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51 257
e9036e33
CYC		 258 /* Atheros AR5BBU12 with sflash firmware */
259 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
260
85d59726 261 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 262 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 263 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 264
3267c884 265 /* QCA ROME chipset */
2054111b 266 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
93519934 267 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
bc1d04cf 268 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
c9e44474 269 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
1eef1c35 270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
c9e44474 271 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
47ca5898 272 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
858ff38a 273 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
06e41d8a 274 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
1144a4ee 275 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
022ffe77 276 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
d829b9e2 277 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
3267c884 278
cfeb4145 279 /* Broadcom BCM2035 */
7a9d4020 280 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 281 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
282 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 283
284 /* Broadcom BCM2045 */
7a9d4020
MH		 285 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
286 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 287
cfeb4145 288 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 289 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
290 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 291
292 /* HP laptop with Broadcom chip */
7a9d4020 293 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 294
295 /* Dell laptop with Broadcom chip */
7a9d4020 296 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 297
5ddd4a60 298 /* Dell Wireless 370 and 410 devices */
7a9d4020 299 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 300 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 301
7a9d4020
MH		 302 /* Belkin F8T012 and F8T013 devices */
303 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
304 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 305
5ddd4a60
MH		 306 /* Asus WL-BTD202 device */
307 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
308
309 /* Kensington Bluetooth USB adapter */
310 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
311
cfeb4145
MH		 312 /* RTX Telecom based adapters with buggy SCO support */
313 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
314 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
315
316 /* CONWISE Technology based adapters with buggy SCO support */
418678b0
SJ		 317 { USB_DEVICE(0x0e5e, 0x6622),
318 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
cfeb4145 319
4fcef8ed 320 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 321 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 322
cfeb4145
MH		 323 /* Digianswer devices */
324 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
325 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
326
327 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 328 { USB_DEVICE(0x0a12, 0x0002),
329 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 330
331 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 332 { USB_DEVICE(0x16d3, 0x0002),
333 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 334
cb1ee89f
MH		 335 /* Marvell Bluetooth devices */
336 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
337 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
1165df0e 338 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
cb1ee89f 339
d0ac9eb7 340 /* Intel Bluetooth devices */
de766142 341 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
d6608ee5 342 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
407550fe 343 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 344 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 345 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 346 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
439e65d3 347 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
86a6129a 348 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 349
d0ac9eb7
MH		 350 /* Other Intel Bluetooth devices */
351 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
352 .driver_info = BTUSB_IGNORE },
ae8df494 353
a2698a9b
DD		 354 /* Realtek Bluetooth devices */
355 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
356 .driver_info = BTUSB_REALTEK },
357
358 /* Additional Realtek 8723AE Bluetooth devices */
359 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
360 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
361
362 /* Additional Realtek 8723BE Bluetooth devices */
363 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
a81d72d2 368 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
a2698a9b 369
56ae08ec
VB		 370 /* Additional Realtek 8723BU Bluetooth devices */
371 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
372
a2698a9b
DD		 373 /* Additional Realtek 8821AE Bluetooth devices */
374 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
375 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
376 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
377 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
378 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
71889af6
LF		 379
380 /* Additional Realtek 8822BE Bluetooth devices */
381 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
a2698a9b 382
4481c076
PP		 383 /* Silicon Wave based devices */
384 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
385
5e23b923
MH		 386 { } /* Terminating entry */
387};
388
6a50b943
HG		 389/* The Bluetooth USB module build into some devices needs to be reset on resume,
390 * this is a problem with the platform (likely shutting off all power) not with
391 * the module itself. So we use a DMI list to match known broken platforms.
392 */
393static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
ed9e1bb3
KHF		 394 {
395 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
396 .matches = {
397 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
398 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
399 },
400 },
9bf1741c
HG		 401 {
402 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
403 .matches = {
404 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
406 },
407 },
6a50b943
HG		 408 {}
409};
410
9bfa35fe
MH		 411#define BTUSB_MAX_ISOC_FRAMES 10
412
5e23b923
MH		 413#define BTUSB_INTR_RUNNING 0
414#define BTUSB_BULK_RUNNING 1
9bfa35fe 415#define BTUSB_ISOC_RUNNING 2
7bee549e 416#define BTUSB_SUSPENDING 3
08b8b6c4 417#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 418#define BTUSB_BOOTLOADER 5
419#define BTUSB_DOWNLOADING 6
ce6bb929 420#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 421#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 422#define BTUSB_BOOTING 9
18970430
HG		 423#define BTUSB_DIAG_RUNNING 10
424#define BTUSB_OOB_WAKE_ENABLED 11
5e23b923
MH		 425
426struct btusb_data {
427 struct hci_dev *hdev;
428 struct usb_device *udev;
5fbcd260 429 struct usb_interface *intf;
9bfa35fe 430 struct usb_interface *isoc;
9d08f504 431 struct usb_interface *diag;
459232fc 432 unsigned isoc_ifnum;
5e23b923 433
5e23b923
MH		 434 unsigned long flags;
435
436 struct work_struct work;
7bee549e 437 struct work_struct waker;
5e23b923 438
803b5836 439 struct usb_anchor deferred;
5e23b923 440 struct usb_anchor tx_anchor;
803b5836
MH		 441 int tx_in_flight;
442 spinlock_t txlock;
443
5e23b923
MH		 444 struct usb_anchor intr_anchor;
445 struct usb_anchor bulk_anchor;
9bfa35fe 446 struct usb_anchor isoc_anchor;
9d08f504 447 struct usb_anchor diag_anchor;
803b5836
MH		 448 spinlock_t rxlock;
449
450 struct sk_buff *evt_skb;
451 struct sk_buff *acl_skb;
452 struct sk_buff *sco_skb;
5e23b923
MH		 453
454 struct usb_endpoint_descriptor *intr_ep;
455 struct usb_endpoint_descriptor *bulk_tx_ep;
456 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 457 struct usb_endpoint_descriptor *isoc_tx_ep;
458 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 459 struct usb_endpoint_descriptor *diag_tx_ep;
460 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 461
7a9d4020 462 __u8 cmdreq_type;
893ba544 463 __u8 cmdreq;
7a9d4020 464
43c2e57f 465 unsigned int sco_num;
9bfa35fe 466 int isoc_altsetting;
6a88adf2 467 int suspend_count;
2cbd3f5c 468
97307f51 469 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 470 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 471
472 int (*setup_on_usb)(struct hci_dev *hdev);
fd913ef7
RJ		 473
474 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
5e23b923
MH		 475};
476
803b5836
MH		 477static inline void btusb_free_frags(struct btusb_data *data)
478{
479 unsigned long flags;
480
481 spin_lock_irqsave(&data->rxlock, flags);
482
483 kfree_skb(data->evt_skb);
484 data->evt_skb = NULL;
485
486 kfree_skb(data->acl_skb);
487 data->acl_skb = NULL;
488
489 kfree_skb(data->sco_skb);
490 data->sco_skb = NULL;
491
492 spin_unlock_irqrestore(&data->rxlock, flags);
493}
494
1ffa4ad0
MH		 495static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
496{
803b5836
MH		 497 struct sk_buff *skb;
498 int err = 0;
499
500 spin_lock(&data->rxlock);
501 skb = data->evt_skb;
502
503 while (count) {
504 int len;
505
506 if (!skb) {
507 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
508 if (!skb) {
509 err = -ENOMEM;
510 break;
511 }
512
618e8bc2
MH		 513 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
514 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 515 }
516
618e8bc2 517 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 518 skb_put_data(skb, buffer, len);
803b5836
MH		 519
520 count -= len;
521 buffer += len;
618e8bc2 522 hci_skb_expect(skb) -= len;
803b5836
MH		 523
524 if (skb->len == HCI_EVENT_HDR_SIZE) {
525 /* Complete event header */
618e8bc2 526 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 527
618e8bc2 528 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 529 kfree_skb(skb);
530 skb = NULL;
531
532 err = -EILSEQ;
533 break;
534 }
535 }
536
618e8bc2 537 if (!hci_skb_expect(skb)) {
803b5836 538 /* Complete frame */
97307f51 539 data->recv_event(data->hdev, skb);
803b5836
MH		 540 skb = NULL;
541 }
542 }
543
544 data->evt_skb = skb;
545 spin_unlock(&data->rxlock);
546
547 return err;
1ffa4ad0
MH		 548}
549
550static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
551{
803b5836
MH		 552 struct sk_buff *skb;
553 int err = 0;
554
555 spin_lock(&data->rxlock);
556 skb = data->acl_skb;
557
558 while (count) {
559 int len;
560
561 if (!skb) {
562 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
563 if (!skb) {
564 err = -ENOMEM;
565 break;
566 }
567
618e8bc2
MH		 568 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
569 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 570 }
571
618e8bc2 572 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 573 skb_put_data(skb, buffer, len);
803b5836
MH		 574
575 count -= len;
576 buffer += len;
618e8bc2 577 hci_skb_expect(skb) -= len;
803b5836
MH		 578
579 if (skb->len == HCI_ACL_HDR_SIZE) {
580 __le16 dlen = hci_acl_hdr(skb)->dlen;
581
582 /* Complete ACL header */
618e8bc2 583 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 584
618e8bc2 585 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 586 kfree_skb(skb);
587 skb = NULL;
588
589 err = -EILSEQ;
590 break;
591 }
592 }
593
618e8bc2 594 if (!hci_skb_expect(skb)) {
803b5836
MH		 595 /* Complete frame */
596 hci_recv_frame(data->hdev, skb);
597 skb = NULL;
598 }
599 }
600
601 data->acl_skb = skb;
602 spin_unlock(&data->rxlock);
603
604 return err;
1ffa4ad0
MH		 605}
606
607static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
608{
803b5836
MH		 609 struct sk_buff *skb;
610 int err = 0;
611
612 spin_lock(&data->rxlock);
613 skb = data->sco_skb;
614
615 while (count) {
616 int len;
617
618 if (!skb) {
619 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
620 if (!skb) {
621 err = -ENOMEM;
622 break;
623 }
624
618e8bc2
MH		 625 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
626 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 627 }
628
618e8bc2 629 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 630 skb_put_data(skb, buffer, len);
803b5836
MH		 631
632 count -= len;
633 buffer += len;
618e8bc2 634 hci_skb_expect(skb) -= len;
803b5836
MH		 635
636 if (skb->len == HCI_SCO_HDR_SIZE) {
637 /* Complete SCO header */
618e8bc2 638 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 639
618e8bc2 640 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 641 kfree_skb(skb);
642 skb = NULL;
643
644 err = -EILSEQ;
645 break;
646 }
647 }
648
618e8bc2 649 if (!hci_skb_expect(skb)) {
803b5836
MH		 650 /* Complete frame */
651 hci_recv_frame(data->hdev, skb);
652 skb = NULL;
653 }
654 }
655
656 data->sco_skb = skb;
657 spin_unlock(&data->rxlock);
658
659 return err;
1ffa4ad0
MH		 660}
661
5e23b923
MH		 662static void btusb_intr_complete(struct urb *urb)
663{
664 struct hci_dev *hdev = urb->context;
155961e8 665 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 666 int err;
667
89e7533d
MH		 668 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
669 urb->actual_length);
5e23b923
MH		 670
671 if (!test_bit(HCI_RUNNING, &hdev->flags))
672 return;
673
674 if (urb->status == 0) {
9bfa35fe
MH		 675 hdev->stat.byte_rx += urb->actual_length;
676
1ffa4ad0
MH		 677 if (btusb_recv_intr(data, urb->transfer_buffer,
678 urb->actual_length) < 0) {
2064ee33 679 bt_dev_err(hdev, "corrupted event packet");
5e23b923
MH		 680 hdev->stat.err_rx++;
681 }
85560c4a
CC		 682 } else if (urb->status == -ENOENT) {
683 /* Avoid suspend failed when usb_kill_urb */
684 return;
5e23b923
MH		 685 }
686
687 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
688 return;
689
7bee549e 690 usb_mark_last_busy(data->udev);
5e23b923
MH		 691 usb_anchor_urb(urb, &data->intr_anchor);
692
693 err = usb_submit_urb(urb, GFP_ATOMIC);
694 if (err < 0) {
4935f1c1 695 /* -EPERM: urb is being killed;
d98422cb
DR		 696 * -ENODEV: device got disconnected
697 */
4935f1c1 698 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 699 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
700 urb, -err);
5e23b923
MH		 701 usb_unanchor_urb(urb);
702 }
703}
704
2eda66f4 705static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 706{
155961e8 707 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 708 struct urb *urb;
709 unsigned char *buf;
710 unsigned int pipe;
711 int err, size;
712
713 BT_DBG("%s", hdev->name);
714
9bfa35fe
MH		 715 if (!data->intr_ep)
716 return -ENODEV;
717
2eda66f4 718 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 719 if (!urb)
720 return -ENOMEM;
721
722 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
723
2eda66f4 724 buf = kmalloc(size, mem_flags);
5e23b923
MH		 725 if (!buf) {
726 usb_free_urb(urb);
727 return -ENOMEM;
728 }
729
730 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
731
732 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 733 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 734
735 urb->transfer_flags |= URB_FREE_BUFFER;
736
737 usb_anchor_urb(urb, &data->intr_anchor);
738
2eda66f4 739 err = usb_submit_urb(urb, mem_flags);
5e23b923 740 if (err < 0) {
d4b8d1c9 741 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 742 bt_dev_err(hdev, "urb %p submission failed (%d)",
743 urb, -err);
5e23b923 744 usb_unanchor_urb(urb);
5e23b923
MH		 745 }
746
747 usb_free_urb(urb);
748
749 return err;
750}
751
752static void btusb_bulk_complete(struct urb *urb)
753{
754 struct hci_dev *hdev = urb->context;
155961e8 755 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 756 int err;
757
89e7533d
MH		 758 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
759 urb->actual_length);
5e23b923
MH		 760
761 if (!test_bit(HCI_RUNNING, &hdev->flags))
762 return;
763
764 if (urb->status == 0) {
9bfa35fe
MH		 765 hdev->stat.byte_rx += urb->actual_length;
766
2cbd3f5c 767 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 768 urb->actual_length) < 0) {
2064ee33 769 bt_dev_err(hdev, "corrupted ACL packet");
5e23b923
MH		 770 hdev->stat.err_rx++;
771 }
85560c4a
CC		 772 } else if (urb->status == -ENOENT) {
773 /* Avoid suspend failed when usb_kill_urb */
774 return;
5e23b923
MH		 775 }
776
777 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
778 return;
779
780 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 781 usb_mark_last_busy(data->udev);
5e23b923
MH		 782
783 err = usb_submit_urb(urb, GFP_ATOMIC);
784 if (err < 0) {
4935f1c1 785 /* -EPERM: urb is being killed;
d98422cb
DR		 786 * -ENODEV: device got disconnected
787 */
4935f1c1 788 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 789 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
790 urb, -err);
5e23b923
MH		 791 usb_unanchor_urb(urb);
792 }
793}
794
2eda66f4 795static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 796{
155961e8 797 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 798 struct urb *urb;
799 unsigned char *buf;
800 unsigned int pipe;
290ba200 801 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 802
803 BT_DBG("%s", hdev->name);
804
9bfa35fe
MH		 805 if (!data->bulk_rx_ep)
806 return -ENODEV;
807
2eda66f4 808 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 809 if (!urb)
810 return -ENOMEM;
811
2eda66f4 812 buf = kmalloc(size, mem_flags);
5e23b923
MH		 813 if (!buf) {
814 usb_free_urb(urb);
815 return -ENOMEM;
816 }
817
818 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
819
89e7533d
MH		 820 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
821 btusb_bulk_complete, hdev);
5e23b923
MH		 822
823 urb->transfer_flags |= URB_FREE_BUFFER;
824
7bee549e 825 usb_mark_last_busy(data->udev);
5e23b923
MH		 826 usb_anchor_urb(urb, &data->bulk_anchor);
827
2eda66f4 828 err = usb_submit_urb(urb, mem_flags);
5e23b923 829 if (err < 0) {
d4b8d1c9 830 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 831 bt_dev_err(hdev, "urb %p submission failed (%d)",
832 urb, -err);
5e23b923 833 usb_unanchor_urb(urb);
5e23b923
MH		 834 }
835
836 usb_free_urb(urb);
837
838 return err;
839}
840
9bfa35fe
MH		 841static void btusb_isoc_complete(struct urb *urb)
842{
843 struct hci_dev *hdev = urb->context;
155961e8 844 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 845 int i, err;
846
89e7533d
MH		 847 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
848 urb->actual_length);
9bfa35fe
MH		 849
850 if (!test_bit(HCI_RUNNING, &hdev->flags))
851 return;
852
853 if (urb->status == 0) {
854 for (i = 0; i < urb->number_of_packets; i++) {
855 unsigned int offset = urb->iso_frame_desc[i].offset;
856 unsigned int length = urb->iso_frame_desc[i].actual_length;
857
858 if (urb->iso_frame_desc[i].status)
859 continue;
860
861 hdev->stat.byte_rx += length;
862
1ffa4ad0
MH		 863 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
864 length) < 0) {
2064ee33 865 bt_dev_err(hdev, "corrupted SCO packet");
9bfa35fe
MH		 866 hdev->stat.err_rx++;
867 }
868 }
85560c4a
CC		 869 } else if (urb->status == -ENOENT) {
870 /* Avoid suspend failed when usb_kill_urb */
871 return;
9bfa35fe
MH		 872 }
873
874 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
875 return;
876
877 usb_anchor_urb(urb, &data->isoc_anchor);
878
879 err = usb_submit_urb(urb, GFP_ATOMIC);
880 if (err < 0) {
4935f1c1 881 /* -EPERM: urb is being killed;
d98422cb
DR		 882 * -ENODEV: device got disconnected
883 */
4935f1c1 884 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 885 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
886 urb, -err);
9bfa35fe
MH		 887 usb_unanchor_urb(urb);
888 }
889}
890
42b16b3f 891static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 892{
893 int i, offset = 0;
894
895 BT_DBG("len %d mtu %d", len, mtu);
896
897 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
898 i++, offset += mtu, len -= mtu) {
899 urb->iso_frame_desc[i].offset = offset;
900 urb->iso_frame_desc[i].length = mtu;
901 }
902
903 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
904 urb->iso_frame_desc[i].offset = offset;
905 urb->iso_frame_desc[i].length = len;
906 i++;
907 }
908
909 urb->number_of_packets = i;
910}
911
2eda66f4 912static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 913{
155961e8 914 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 915 struct urb *urb;
916 unsigned char *buf;
917 unsigned int pipe;
918 int err, size;
919
920 BT_DBG("%s", hdev->name);
921
922 if (!data->isoc_rx_ep)
923 return -ENODEV;
924
2eda66f4 925 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 926 if (!urb)
927 return -ENOMEM;
928
929 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
930 BTUSB_MAX_ISOC_FRAMES;
931
2eda66f4 932 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 933 if (!buf) {
934 usb_free_urb(urb);
935 return -ENOMEM;
936 }
937
938 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
939
fa0fb93f 940 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 941 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 942
89e7533d 943 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 944
945 __fill_isoc_descriptor(urb, size,
89e7533d 946 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 947
948 usb_anchor_urb(urb, &data->isoc_anchor);
949
2eda66f4 950 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 951 if (err < 0) {
d4b8d1c9 952 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 953 bt_dev_err(hdev, "urb %p submission failed (%d)",
954 urb, -err);
9bfa35fe 955 usb_unanchor_urb(urb);
9bfa35fe
MH		 956 }
957
958 usb_free_urb(urb);
959
960 return err;
961}
962
9d08f504
MH		 963static void btusb_diag_complete(struct urb *urb)
964{
965 struct hci_dev *hdev = urb->context;
966 struct btusb_data *data = hci_get_drvdata(hdev);
967 int err;
968
969 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
970 urb->actual_length);
971
972 if (urb->status == 0) {
973 struct sk_buff *skb;
974
975 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
976 if (skb) {
59ae1d12
JB		 977 skb_put_data(skb, urb->transfer_buffer,
978 urb->actual_length);
9d08f504
MH		 979 hci_recv_diag(hdev, skb);
980 }
981 } else if (urb->status == -ENOENT) {
982 /* Avoid suspend failed when usb_kill_urb */
983 return;
984 }
985
986 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
987 return;
988
989 usb_anchor_urb(urb, &data->diag_anchor);
990 usb_mark_last_busy(data->udev);
991
992 err = usb_submit_urb(urb, GFP_ATOMIC);
993 if (err < 0) {
994 /* -EPERM: urb is being killed;
d98422cb
DR		 995 * -ENODEV: device got disconnected
996 */
9d08f504 997 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 998 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
999 urb, -err);
9d08f504
MH		 1000 usb_unanchor_urb(urb);
1001 }
1002}
1003
1004static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1005{
1006 struct btusb_data *data = hci_get_drvdata(hdev);
1007 struct urb *urb;
1008 unsigned char *buf;
1009 unsigned int pipe;
1010 int err, size = HCI_MAX_FRAME_SIZE;
1011
1012 BT_DBG("%s", hdev->name);
1013
1014 if (!data->diag_rx_ep)
1015 return -ENODEV;
1016
1017 urb = usb_alloc_urb(0, mem_flags);
1018 if (!urb)
1019 return -ENOMEM;
1020
1021 buf = kmalloc(size, mem_flags);
1022 if (!buf) {
1023 usb_free_urb(urb);
1024 return -ENOMEM;
1025 }
1026
1027 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1028
1029 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1030 btusb_diag_complete, hdev);
1031
1032 urb->transfer_flags |= URB_FREE_BUFFER;
1033
1034 usb_mark_last_busy(data->udev);
1035 usb_anchor_urb(urb, &data->diag_anchor);
1036
1037 err = usb_submit_urb(urb, mem_flags);
1038 if (err < 0) {
1039 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1040 bt_dev_err(hdev, "urb %p submission failed (%d)",
1041 urb, -err);
9d08f504
MH		 1042 usb_unanchor_urb(urb);
1043 }
1044
1045 usb_free_urb(urb);
1046
1047 return err;
1048}
1049
5e23b923 1050static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 1051{
1052 struct sk_buff *skb = urb->context;
89e7533d 1053 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 1054 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1055
89e7533d
MH		 1056 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1057 urb->actual_length);
7bee549e
ON		 1058
1059 if (!test_bit(HCI_RUNNING, &hdev->flags))
1060 goto done;
1061
1062 if (!urb->status)
1063 hdev->stat.byte_tx += urb->transfer_buffer_length;
1064 else
1065 hdev->stat.err_tx++;
1066
1067done:
1068 spin_lock(&data->txlock);
1069 data->tx_in_flight--;
1070 spin_unlock(&data->txlock);
1071
1072 kfree(urb->setup_packet);
1073
1074 kfree_skb(skb);
1075}
1076
1077static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1078{
1079 struct sk_buff *skb = urb->context;
89e7533d 1080 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1081
89e7533d
MH		 1082 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1083 urb->actual_length);
5e23b923
MH		 1084
1085 if (!test_bit(HCI_RUNNING, &hdev->flags))
1086 goto done;
1087
1088 if (!urb->status)
1089 hdev->stat.byte_tx += urb->transfer_buffer_length;
1090 else
1091 hdev->stat.err_tx++;
1092
1093done:
1094 kfree(urb->setup_packet);
1095
1096 kfree_skb(skb);
1097}
1098
1099static int btusb_open(struct hci_dev *hdev)
1100{
155961e8 1101 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1102 int err;
1103
1104 BT_DBG("%s", hdev->name);
1105
c7e163fe
EH		 1106 err = usb_autopm_get_interface(data->intf);
1107 if (err < 0)
1108 return err;
1109
ace31982
KBYT		 1110 /* Patching USB firmware files prior to starting any URBs of HCI path
1111 * It is more safe to use USB bulk channel for downloading USB patch
1112 */
1113 if (data->setup_on_usb) {
1114 err = data->setup_on_usb(hdev);
eb50042f 1115 if (err < 0)
ace31982
KBYT		 1116 return err;
1117 }
1118
7bee549e 1119 data->intf->needs_remote_wakeup = 1;
a0085f25
SG		 1120 /* device specific wakeup source enabled and required for USB
1121 * remote wakeup while host is suspended
1122 */
1123 device_wakeup_enable(&data->udev->dev);
7bee549e 1124
5e23b923 1125 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1126 goto done;
5e23b923 1127
2eda66f4 1128 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1129 if (err < 0)
1130 goto failed;
1131
1132 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1133 if (err < 0) {
43c2e57f
MH		 1134 usb_kill_anchored_urbs(&data->intr_anchor);
1135 goto failed;
5e23b923
MH		 1136 }
1137
43c2e57f
MH		 1138 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1139 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1140
9d08f504
MH		 1141 if (data->diag) {
1142 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1143 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1144 }
1145
7bee549e
ON		 1146done:
1147 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1148 return 0;
1149
1150failed:
1151 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1152 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1153 return err;
1154}
1155
7bee549e
ON		 1156static void btusb_stop_traffic(struct btusb_data *data)
1157{
1158 usb_kill_anchored_urbs(&data->intr_anchor);
1159 usb_kill_anchored_urbs(&data->bulk_anchor);
1160 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1161 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1162}
1163
5e23b923
MH		 1164static int btusb_close(struct hci_dev *hdev)
1165{
155961e8 1166 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1167 int err;
5e23b923
MH		 1168
1169 BT_DBG("%s", hdev->name);
1170
e8c3c3d2 1171 cancel_work_sync(&data->work);
404291ac 1172 cancel_work_sync(&data->waker);
e8c3c3d2 1173
9bfa35fe 1174 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1175 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1176 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1177 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1178
1179 btusb_stop_traffic(data);
803b5836
MH		 1180 btusb_free_frags(data);
1181
7bee549e
ON		 1182 err = usb_autopm_get_interface(data->intf);
1183 if (err < 0)
7b8e2c1d 1184 goto failed;
7bee549e
ON		 1185
1186 data->intf->needs_remote_wakeup = 0;
a0085f25 1187 device_wakeup_disable(&data->udev->dev);
7bee549e 1188 usb_autopm_put_interface(data->intf);
5e23b923 1189
7b8e2c1d
ON		 1190failed:
1191 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1192 return 0;
1193}
1194
1195static int btusb_flush(struct hci_dev *hdev)
1196{
155961e8 1197 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1198
1199 BT_DBG("%s", hdev->name);
1200
1201 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1202 btusb_free_frags(data);
5e23b923
MH		 1203
1204 return 0;
1205}
1206
047b2ec8 1207static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1208{
155961e8 1209 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1210 struct usb_ctrlrequest *dr;
1211 struct urb *urb;
1212 unsigned int pipe;
5e23b923 1213
047b2ec8
MH		 1214 urb = usb_alloc_urb(0, GFP_KERNEL);
1215 if (!urb)
1216 return ERR_PTR(-ENOMEM);
5e23b923 1217
047b2ec8
MH		 1218 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1219 if (!dr) {
1220 usb_free_urb(urb);
1221 return ERR_PTR(-ENOMEM);
1222 }
5e23b923 1223
047b2ec8 1224 dr->bRequestType = data->cmdreq_type;
893ba544 1225 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1226 dr->wIndex = 0;
1227 dr->wValue = 0;
1228 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1229
047b2ec8 1230 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1231
89e7533d 1232 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1233 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1234
89e7533d 1235 skb->dev = (void *)hdev;
5e23b923 1236
047b2ec8
MH		 1237 return urb;
1238}
5e23b923 1239
047b2ec8
MH		 1240static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1241{
1242 struct btusb_data *data = hci_get_drvdata(hdev);
1243 struct urb *urb;
1244 unsigned int pipe;
5e23b923 1245
047b2ec8
MH		 1246 if (!data->bulk_tx_ep)
1247 return ERR_PTR(-ENODEV);
9bfa35fe 1248
047b2ec8
MH		 1249 urb = usb_alloc_urb(0, GFP_KERNEL);
1250 if (!urb)
1251 return ERR_PTR(-ENOMEM);
5e23b923 1252
047b2ec8 1253 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1254
047b2ec8
MH		 1255 usb_fill_bulk_urb(urb, data->udev, pipe,
1256 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1257
89e7533d 1258 skb->dev = (void *)hdev;
5e23b923 1259
047b2ec8
MH		 1260 return urb;
1261}
9bfa35fe 1262
047b2ec8
MH		 1263static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1264{
1265 struct btusb_data *data = hci_get_drvdata(hdev);
1266 struct urb *urb;
1267 unsigned int pipe;
9bfa35fe 1268
047b2ec8
MH		 1269 if (!data->isoc_tx_ep)
1270 return ERR_PTR(-ENODEV);
9bfa35fe 1271
047b2ec8
MH		 1272 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1273 if (!urb)
1274 return ERR_PTR(-ENOMEM);
9bfa35fe 1275
047b2ec8 1276 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1277
047b2ec8
MH		 1278 usb_fill_int_urb(urb, data->udev, pipe,
1279 skb->data, skb->len, btusb_isoc_tx_complete,
1280 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1281
047b2ec8 1282 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1283
047b2ec8
MH		 1284 __fill_isoc_descriptor(urb, skb->len,
1285 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1286
89e7533d 1287 skb->dev = (void *)hdev;
047b2ec8
MH		 1288
1289 return urb;
1290}
1291
1292static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1293{
1294 struct btusb_data *data = hci_get_drvdata(hdev);
1295 int err;
7bee549e 1296
5e23b923
MH		 1297 usb_anchor_urb(urb, &data->tx_anchor);
1298
e9753eff 1299 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1300 if (err < 0) {
5a9b80e2 1301 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1302 bt_dev_err(hdev, "urb %p submission failed (%d)",
1303 urb, -err);
5e23b923
MH		 1304 kfree(urb->setup_packet);
1305 usb_unanchor_urb(urb);
7bee549e
ON		 1306 } else {
1307 usb_mark_last_busy(data->udev);
5e23b923
MH		 1308 }
1309
54a8a79c 1310 usb_free_urb(urb);
5e23b923
MH		 1311 return err;
1312}
1313
047b2ec8
MH		 1314static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1315{
1316 struct btusb_data *data = hci_get_drvdata(hdev);
1317 unsigned long flags;
1318 bool suspending;
1319
1320 spin_lock_irqsave(&data->txlock, flags);
1321 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1322 if (!suspending)
1323 data->tx_in_flight++;
1324 spin_unlock_irqrestore(&data->txlock, flags);
1325
1326 if (!suspending)
1327 return submit_tx_urb(hdev, urb);
1328
1329 usb_anchor_urb(urb, &data->deferred);
1330 schedule_work(&data->waker);
1331
1332 usb_free_urb(urb);
1333 return 0;
1334}
1335
1336static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1337{
1338 struct urb *urb;
1339
1340 BT_DBG("%s", hdev->name);
1341
618e8bc2 1342 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1343 case HCI_COMMAND_PKT:
1344 urb = alloc_ctrl_urb(hdev, skb);
1345 if (IS_ERR(urb))
1346 return PTR_ERR(urb);
1347
1348 hdev->stat.cmd_tx++;
1349 return submit_or_queue_tx_urb(hdev, urb);
1350
1351 case HCI_ACLDATA_PKT:
1352 urb = alloc_bulk_urb(hdev, skb);
1353 if (IS_ERR(urb))
1354 return PTR_ERR(urb);
1355
1356 hdev->stat.acl_tx++;
1357 return submit_or_queue_tx_urb(hdev, urb);
1358
1359 case HCI_SCODATA_PKT:
1360 if (hci_conn_num(hdev, SCO_LINK) < 1)
1361 return -ENODEV;
1362
1363 urb = alloc_isoc_urb(hdev, skb);
1364 if (IS_ERR(urb))
1365 return PTR_ERR(urb);
1366
1367 hdev->stat.sco_tx++;
1368 return submit_tx_urb(hdev, urb);
1369 }
1370
1371 return -EILSEQ;
1372}
1373
5e23b923
MH		 1374static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1375{
155961e8 1376 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1377
1378 BT_DBG("%s evt %d", hdev->name, evt);
1379
014f7bc7
MH		 1380 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1381 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1382 schedule_work(&data->work);
a780efa8 1383 }
5e23b923
MH		 1384}
1385
42b16b3f 1386static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1387{
155961e8 1388 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1389 struct usb_interface *intf = data->isoc;
1390 struct usb_endpoint_descriptor *ep_desc;
1391 int i, err;
1392
1393 if (!data->isoc)
1394 return -ENODEV;
1395
459232fc 1396 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
9bfa35fe 1397 if (err < 0) {
2064ee33 1398 bt_dev_err(hdev, "setting interface failed (%d)", -err);
9bfa35fe
MH		 1399 return err;
1400 }
1401
1402 data->isoc_altsetting = altsetting;
1403
1404 data->isoc_tx_ep = NULL;
1405 data->isoc_rx_ep = NULL;
1406
1407 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1408 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1409
1410 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1411 data->isoc_tx_ep = ep_desc;
1412 continue;
1413 }
1414
1415 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1416 data->isoc_rx_ep = ep_desc;
1417 continue;
1418 }
1419 }
1420
1421 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2064ee33 1422 bt_dev_err(hdev, "invalid SCO descriptors");
9bfa35fe
MH		 1423 return -ENODEV;
1424 }
1425
1426 return 0;
1427}
1428
5e23b923
MH		 1429static void btusb_work(struct work_struct *work)
1430{
1431 struct btusb_data *data = container_of(work, struct btusb_data, work);
1432 struct hci_dev *hdev = data->hdev;
f4001d28 1433 int new_alts;
7bee549e 1434 int err;
5e23b923 1435
014f7bc7 1436 if (data->sco_num > 0) {
08b8b6c4 1437 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1438 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1439 if (err < 0) {
1440 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1441 usb_kill_anchored_urbs(&data->isoc_anchor);
1442 return;
1443 }
1444
08b8b6c4 1445 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1446 }
f4001d28
MA		 1447
1448 if (hdev->voice_setting & 0x0020) {
1449 static const int alts[3] = { 2, 4, 5 };
89e7533d 1450
014f7bc7 1451 new_alts = alts[data->sco_num - 1];
f4001d28 1452 } else {
014f7bc7 1453 new_alts = data->sco_num;
f4001d28
MA		 1454 }
1455
1456 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1457 unsigned long flags;
1458
9bfa35fe
MH		 1459 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1460 usb_kill_anchored_urbs(&data->isoc_anchor);
1461
8f9d02f4
KP		 1462 /* When isochronous alternate setting needs to be
1463 * changed, because SCO connection has been added
1464 * or removed, a packet fragment may be left in the
1465 * reassembling state. This could lead to wrongly
1466 * assembled fragments.
1467 *
1468 * Clear outstanding fragment when selecting a new
1469 * alternate setting.
1470 */
f6fc86f2 1471 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1472 kfree_skb(data->sco_skb);
1473 data->sco_skb = NULL;
f6fc86f2 1474 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1475
f4001d28 1476 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1477 return;
1478 }
1479
1480 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1481 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1482 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1483 else
2eda66f4 1484 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1485 }
1486 } else {
1487 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1488 usb_kill_anchored_urbs(&data->isoc_anchor);
1489
1490 __set_isoc_interface(hdev, 0);
08b8b6c4 1491 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1492 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1493 }
1494}
1495
7bee549e
ON		 1496static void btusb_waker(struct work_struct *work)
1497{
1498 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1499 int err;
1500
1501 err = usb_autopm_get_interface(data->intf);
1502 if (err < 0)
1503 return;
1504
1505 usb_autopm_put_interface(data->intf);
1506}
1507
9f8f962c
MH		 1508static int btusb_setup_bcm92035(struct hci_dev *hdev)
1509{
1510 struct sk_buff *skb;
1511 u8 val = 0x00;
1512
1513 BT_DBG("%s", hdev->name);
1514
1515 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1516 if (IS_ERR(skb))
2064ee33 1517 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
9f8f962c
MH		 1518 else
1519 kfree_skb(skb);
1520
1521 return 0;
1522}
1523
81cac64b
MH		 1524static int btusb_setup_csr(struct hci_dev *hdev)
1525{
1526 struct hci_rp_read_local_version *rp;
1527 struct sk_buff *skb;
81cac64b
MH		 1528
1529 BT_DBG("%s", hdev->name);
1530
7cd84d72
MH		 1531 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1532 HCI_INIT_TIMEOUT);
1533 if (IS_ERR(skb)) {
1534 int err = PTR_ERR(skb);
2064ee33 1535 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
7cd84d72
MH		 1536 return err;
1537 }
1538
1539 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33 1540 bt_dev_err(hdev, "CSR: Local version length mismatch");
7cd84d72
MH		 1541 kfree_skb(skb);
1542 return -EIO;
1543 }
81cac64b 1544
89e7533d 1545 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1546
6cafcd95
JH		 1547 /* Detect controllers which aren't real CSR ones. */
1548 if (le16_to_cpu(rp->manufacturer) != 10 ||
1549 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1550 /* Clear the reset quirk since this is not an actual
1551 * early Bluetooth 1.1 device from CSR.
1552 */
1553 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1554
9641d343
MH		 1555 /* These fake CSR controllers have all a broken
1556 * stored link key handling and so just disable it.
1557 */
1558 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1559 }
81cac64b
MH		 1560
1561 kfree_skb(skb);
1562
9641d343 1563 return 0;
81cac64b
MH		 1564}
1565
dffd30ee 1566static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1567 struct intel_version *ver)
dffd30ee
THJA		 1568{
1569 const struct firmware *fw;
1570 char fwname[64];
1571 int ret;
1572
1573 snprintf(fwname, sizeof(fwname),
1574 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1575 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1576 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1577 ver->fw_build_ww, ver->fw_build_yy);
1578
1579 ret = request_firmware(&fw, fwname, &hdev->dev);
1580 if (ret < 0) {
1581 if (ret == -EINVAL) {
1582 BT_ERR("%s Intel firmware file request failed (%d)",
1583 hdev->name, ret);
1584 return NULL;
1585 }
1586
1587 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1588 hdev->name, fwname, ret);
1589
1590 /* If the correct firmware patch file is not found, use the
1591 * default firmware patch file instead
1592 */
1593 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1594 ver->hw_platform, ver->hw_variant);
1595 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1596 BT_ERR("%s failed to open default Intel fw file: %s",
1597 hdev->name, fwname);
1598 return NULL;
1599 }
1600 }
1601
2064ee33 1602 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
dffd30ee
THJA		 1603
1604 return fw;
1605}
1606
1607static int btusb_setup_intel_patching(struct hci_dev *hdev,
1608 const struct firmware *fw,
1609 const u8 **fw_ptr, int *disable_patch)
1610{
1611 struct sk_buff *skb;
1612 struct hci_command_hdr *cmd;
1613 const u8 *cmd_param;
1614 struct hci_event_hdr *evt = NULL;
1615 const u8 *evt_param = NULL;
1616 int remain = fw->size - (*fw_ptr - fw->data);
1617
1618 /* The first byte indicates the types of the patch command or event.
1619 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1620 * in the current firmware buffer doesn't start with 0x01 or
1621 * the size of remain buffer is smaller than HCI command header,
1622 * the firmware file is corrupted and it should stop the patching
1623 * process.
1624 */
1625 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1626 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1627 return -EINVAL;
1628 }
1629 (*fw_ptr)++;
1630 remain--;
1631
1632 cmd = (struct hci_command_hdr *)(*fw_ptr);
1633 *fw_ptr += sizeof(*cmd);
1634 remain -= sizeof(*cmd);
1635
1636 /* Ensure that the remain firmware data is long enough than the length
1637 * of command parameter. If not, the firmware file is corrupted.
1638 */
1639 if (remain < cmd->plen) {
1640 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1641 return -EFAULT;
1642 }
1643
1644 /* If there is a command that loads a patch in the firmware
1645 * file, then enable the patch upon success, otherwise just
1646 * disable the manufacturer mode, for example patch activation
1647 * is not required when the default firmware patch file is used
1648 * because there are no patch data to load.
1649 */
1650 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1651 *disable_patch = 0;
1652
1653 cmd_param = *fw_ptr;
1654 *fw_ptr += cmd->plen;
1655 remain -= cmd->plen;
1656
1657 /* This reads the expected events when the above command is sent to the
1658 * device. Some vendor commands expects more than one events, for
1659 * example command status event followed by vendor specific event.
1660 * For this case, it only keeps the last expected event. so the command
1661 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1662 * last expected event.
1663 */
1664 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1665 (*fw_ptr)++;
1666 remain--;
1667
1668 evt = (struct hci_event_hdr *)(*fw_ptr);
1669 *fw_ptr += sizeof(*evt);
1670 remain -= sizeof(*evt);
1671
1672 if (remain < evt->plen) {
1673 BT_ERR("%s Intel fw corrupted: invalid evt len",
1674 hdev->name);
1675 return -EFAULT;
1676 }
1677
1678 evt_param = *fw_ptr;
1679 *fw_ptr += evt->plen;
1680 remain -= evt->plen;
1681 }
1682
1683 /* Every HCI commands in the firmware file has its correspond event.
1684 * If event is not found or remain is smaller than zero, the firmware
1685 * file is corrupted.
1686 */
1687 if (!evt || !evt_param || remain < 0) {
1688 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1689 return -EFAULT;
1690 }
1691
1692 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1693 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1694 if (IS_ERR(skb)) {
1695 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1696 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1697 return PTR_ERR(skb);
dffd30ee
THJA		 1698 }
1699
1700 /* It ensures that the returned event matches the event data read from
1701 * the firmware file. At fist, it checks the length and then
1702 * the contents of the event.
1703 */
1704 if (skb->len != evt->plen) {
1705 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1706 le16_to_cpu(cmd->opcode));
1707 kfree_skb(skb);
1708 return -EFAULT;
1709 }
1710
1711 if (memcmp(skb->data, evt_param, evt->plen)) {
1712 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1713 hdev->name, le16_to_cpu(cmd->opcode));
1714 kfree_skb(skb);
1715 return -EFAULT;
1716 }
1717 kfree_skb(skb);
1718
1719 return 0;
1720}
1721
1722static int btusb_setup_intel(struct hci_dev *hdev)
1723{
1724 struct sk_buff *skb;
1725 const struct firmware *fw;
1726 const u8 *fw_ptr;
28dc4b92 1727 int disable_patch, err;
6c483de1 1728 struct intel_version ver;
dffd30ee 1729
dffd30ee
THJA		 1730 BT_DBG("%s", hdev->name);
1731
1732 /* The controller has a bug with the first HCI command sent to it
1733 * returning number of completed commands as zero. This would stall the
1734 * command processing in the Bluetooth core.
1735 *
1736 * As a workaround, send HCI Reset command first which will reset the
1737 * number of completed commands and allow normal command processing
1738 * from now on.
1739 */
1740 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1741 if (IS_ERR(skb)) {
1742 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1743 hdev->name, PTR_ERR(skb));
d9c78e97 1744 return PTR_ERR(skb);
dffd30ee
THJA		 1745 }
1746 kfree_skb(skb);
1747
1748 /* Read Intel specific controller version first to allow selection of
1749 * which firmware file to load.
1750 *
1751 * The returned information are hardware variant and revision plus
1752 * firmware variant, revision and build number.
1753 */
6c483de1
LP		 1754 err = btintel_read_version(hdev, &ver);
1755 if (err)
1756 return err;
dffd30ee 1757
2064ee33
MH		 1758 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1759 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1760 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1761 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1762
1763 /* fw_patch_num indicates the version of patch the device currently
1764 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1765 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1766 */
6c483de1 1767 if (ver.fw_patch_num) {
2064ee33
MH		 1768 bt_dev_info(hdev, "Intel device is already patched. "
1769 "patch num: %02x", ver.fw_patch_num);
213445b2 1770 goto complete;
dffd30ee
THJA		 1771 }
1772
1773 /* Opens the firmware patch file based on the firmware version read
1774 * from the controller. If it fails to open the matching firmware
1775 * patch file, it tries to open the default firmware patch file.
1776 * If no patch file is found, allow the device to operate without
1777 * a patch.
1778 */
6c483de1
LP		 1779 fw = btusb_setup_intel_get_fw(hdev, &ver);
1780 if (!fw)
213445b2 1781 goto complete;
dffd30ee
THJA		 1782 fw_ptr = fw->data;
1783
28dc4b92 1784 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1785 * Only while this mode is enabled, the driver can download the
1786 * firmware patch data and configuration parameters.
1787 */
28dc4b92
LP		 1788 err = btintel_enter_mfg(hdev);
1789 if (err) {
dffd30ee 1790 release_firmware(fw);
28dc4b92 1791 return err;
dffd30ee
THJA		 1792 }
1793
dffd30ee
THJA		 1794 disable_patch = 1;
1795
1796 /* The firmware data file consists of list of Intel specific HCI
1797 * commands and its expected events. The first byte indicates the
1798 * type of the message, either HCI command or HCI event.
1799 *
1800 * It reads the command and its expected event from the firmware file,
1801 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1802 * the returned event is compared with the event read from the firmware
1803 * file and it will continue until all the messages are downloaded to
1804 * the controller.
1805 *
1806 * Once the firmware patching is completed successfully,
1807 * the manufacturer mode is disabled with reset and activating the
1808 * downloaded patch.
1809 *
1810 * If the firmware patching fails, the manufacturer mode is
1811 * disabled with reset and deactivating the patch.
1812 *
1813 * If the default patch file is used, no reset is done when disabling
1814 * the manufacturer.
1815 */
1816 while (fw->size > fw_ptr - fw->data) {
1817 int ret;
1818
1819 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1820 &disable_patch);
1821 if (ret < 0)
1822 goto exit_mfg_deactivate;
1823 }
1824
1825 release_firmware(fw);
1826
1827 if (disable_patch)
1828 goto exit_mfg_disable;
1829
1830 /* Patching completed successfully and disable the manufacturer mode
1831 * with reset and activate the downloaded firmware patches.
1832 */
28dc4b92
LP		 1833 err = btintel_exit_mfg(hdev, true, true);
1834 if (err)
1835 return err;
dffd30ee 1836
2064ee33 1837 bt_dev_info(hdev, "Intel firmware patch completed and activated");
dffd30ee 1838
213445b2 1839 goto complete;
dffd30ee
THJA		 1840
1841exit_mfg_disable:
1842 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1843 err = btintel_exit_mfg(hdev, false, false);
1844 if (err)
1845 return err;
dffd30ee 1846
2064ee33 1847 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1848
213445b2 1849 goto complete;
dffd30ee
THJA		 1850
1851exit_mfg_deactivate:
1852 release_firmware(fw);
1853
1854 /* Patching failed. Disable the manufacturer mode with reset and
1855 * deactivate the downloaded firmware patches.
1856 */
28dc4b92
LP		 1857 err = btintel_exit_mfg(hdev, true, false);
1858 if (err)
1859 return err;
dffd30ee 1860
2064ee33 1861 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1862
213445b2
MH		 1863complete:
1864 /* Set the event mask for Intel specific vendor events. This enables
1865 * a few extra events that are useful during general operation.
1866 */
1867 btintel_set_event_mask_mfg(hdev, false);
1868
4185a0f5 1869 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1870 return 0;
1871}
1872
cda0dd78
MH		 1873static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1874{
1875 struct sk_buff *skb;
1876 struct hci_event_hdr *hdr;
1877 struct hci_ev_cmd_complete *evt;
1878
1879 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1880 if (!skb)
1881 return -ENOMEM;
1882
4df864c1 1883 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1884 hdr->evt = HCI_EV_CMD_COMPLETE;
1885 hdr->plen = sizeof(*evt) + 1;
1886
4df864c1 1887 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1888 evt->ncmd = 0x01;
1889 evt->opcode = cpu_to_le16(opcode);
1890
634fef61 1891 skb_put_u8(skb, 0x00);
cda0dd78 1892
618e8bc2 1893 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1894
1895 return hci_recv_frame(hdev, skb);
1896}
1897
1898static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1899 int count)
1900{
1901 /* When the device is in bootloader mode, then it can send
1902 * events via the bulk endpoint. These events are treated the
1903 * same way as the ones received from the interrupt endpoint.
1904 */
1905 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1906 return btusb_recv_intr(data, buffer, count);
1907
1908 return btusb_recv_bulk(data, buffer, count);
1909}
1910
ccd6da2a
MH		 1911static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1912 unsigned int len)
1913{
1914 const struct intel_bootup *evt = ptr;
1915
1916 if (len != sizeof(*evt))
1917 return;
1918
1919 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1920 smp_mb__after_atomic();
1921 wake_up_bit(&data->flags, BTUSB_BOOTING);
1922 }
1923}
1924
1925static void btusb_intel_secure_send_result(struct btusb_data *data,
1926 const void *ptr, unsigned int len)
1927{
1928 const struct intel_secure_send_result *evt = ptr;
1929
1930 if (len != sizeof(*evt))
1931 return;
1932
1933 if (evt->result)
1934 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1935
1936 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1937 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1938 smp_mb__after_atomic();
1939 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1940 }
1941}
1942
cda0dd78
MH		 1943static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1944{
1945 struct btusb_data *data = hci_get_drvdata(hdev);
1946
1947 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1948 struct hci_event_hdr *hdr = (void *)skb->data;
1949
ccd6da2a
MH		 1950 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1951 hdr->plen > 0) {
1952 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1953 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1954
1955 switch (skb->data[2]) {
1956 case 0x02:
1957 /* When switching to the operational firmware
1958 * the device sends a vendor specific event
1959 * indicating that the bootup completed.
1960 */
1961 btusb_intel_bootup(data, ptr, len);
1962 break;
1963 case 0x06:
1964 /* When the firmware loading completes the
1965 * device sends out a vendor specific event
1966 * indicating the result of the firmware
1967 * loading.
1968 */
1969 btusb_intel_secure_send_result(data, ptr, len);
1970 break;
fad70972 1971 }
cda0dd78
MH		 1972 }
1973 }
1974
1975 return hci_recv_frame(hdev, skb);
1976}
1977
1978static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1979{
1980 struct btusb_data *data = hci_get_drvdata(hdev);
1981 struct urb *urb;
1982
1983 BT_DBG("%s", hdev->name);
1984
618e8bc2 1985 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 1986 case HCI_COMMAND_PKT:
1987 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1988 struct hci_command_hdr *cmd = (void *)skb->data;
1989 __u16 opcode = le16_to_cpu(cmd->opcode);
1990
1991 /* When in bootloader mode and the command 0xfc09
1992 * is received, it needs to be send down the
1993 * bulk endpoint. So allocate a bulk URB instead.
1994 */
1995 if (opcode == 0xfc09)
1996 urb = alloc_bulk_urb(hdev, skb);
1997 else
1998 urb = alloc_ctrl_urb(hdev, skb);
1999
2000 /* When the 0xfc01 command is issued to boot into
2001 * the operational firmware, it will actually not
2002 * send a command complete event. To keep the flow
2003 * control working inject that event here.
2004 */
2005 if (opcode == 0xfc01)
2006 inject_cmd_complete(hdev, opcode);
2007 } else {
2008 urb = alloc_ctrl_urb(hdev, skb);
2009 }
2010 if (IS_ERR(urb))
2011 return PTR_ERR(urb);
2012
2013 hdev->stat.cmd_tx++;
2014 return submit_or_queue_tx_urb(hdev, urb);
2015
2016 case HCI_ACLDATA_PKT:
2017 urb = alloc_bulk_urb(hdev, skb);
2018 if (IS_ERR(urb))
2019 return PTR_ERR(urb);
2020
2021 hdev->stat.acl_tx++;
2022 return submit_or_queue_tx_urb(hdev, urb);
2023
2024 case HCI_SCODATA_PKT:
2025 if (hci_conn_num(hdev, SCO_LINK) < 1)
2026 return -ENODEV;
2027
2028 urb = alloc_isoc_urb(hdev, skb);
2029 if (IS_ERR(urb))
2030 return PTR_ERR(urb);
2031
2032 hdev->stat.sco_tx++;
2033 return submit_tx_urb(hdev, urb);
2034 }
2035
2036 return -EILSEQ;
2037}
2038
cda0dd78
MH		 2039static int btusb_setup_intel_new(struct hci_dev *hdev)
2040{
2041 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2042 0x00, 0x08, 0x04, 0x00 };
2043 struct btusb_data *data = hci_get_drvdata(hdev);
2044 struct sk_buff *skb;
6c483de1 2045 struct intel_version ver;
cda0dd78
MH		 2046 struct intel_boot_params *params;
2047 const struct firmware *fw;
2048 const u8 *fw_ptr;
e66890a9 2049 u32 frag_len;
cda0dd78
MH		 2050 char fwname[64];
2051 ktime_t calltime, delta, rettime;
2052 unsigned long long duration;
2053 int err;
2054
2055 BT_DBG("%s", hdev->name);
2056
2057 calltime = ktime_get();
2058
2059 /* Read the Intel version information to determine if the device
2060 * is in bootloader mode or if it already has operational firmware
2061 * loaded.
2062 */
6c483de1
LP		 2063 err = btintel_read_version(hdev, &ver);
2064 if (err)
2065 return err;
cda0dd78
MH		 2066
2067 /* The hardware platform number has a fixed value of 0x37 and
2068 * for now only accept this single value.
2069 */
6c483de1 2070 if (ver.hw_platform != 0x37) {
cda0dd78 2071 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
6c483de1 2072 hdev->name, ver.hw_platform);
cda0dd78
MH		 2073 return -EINVAL;
2074 }
2075
9268834b
THJA		 2076 /* Check for supported iBT hardware variants of this firmware
2077 * loading method.
a0af53b5
THJA		 2078 *
2079 * This check has been put in place to ensure correct forward
2080 * compatibility options when newer hardware variants come along.
cda0dd78 2081 */
9268834b
THJA		 2082 switch (ver.hw_variant) {
2083 case 0x0b: /* SfP */
2084 case 0x0c: /* WsP */
86a6129a 2085 case 0x11: /* JfP */
de766142 2086 case 0x12: /* ThP */
d6608ee5
THJA		 2087 case 0x13: /* HrP */
2088 case 0x14: /* QnJ, IcP */
9268834b
THJA		 2089 break;
2090 default:
cda0dd78 2091 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
6c483de1 2092 hdev->name, ver.hw_variant);
cda0dd78
MH		 2093 return -EINVAL;
2094 }
2095
6c483de1 2096 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2097
2098 /* The firmware variant determines if the device is in bootloader
2099 * mode or is running operational firmware. The value 0x06 identifies
2100 * the bootloader and the value 0x23 identifies the operational
2101 * firmware.
2102 *
2103 * When the operational firmware is already present, then only
2104 * the check for valid Bluetooth device address is needed. This
2105 * determines if the device will be added as configured or
2106 * unconfigured controller.
2107 *
2108 * It is not possible to use the Secure Boot Parameters in this
2109 * case since that command is only available in bootloader mode.
2110 */
6c483de1 2111 if (ver.fw_variant == 0x23) {
cda0dd78 2112 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2113 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2114 return 0;
2115 }
2116
2117 /* If the device is not in bootloader mode, then the only possible
2118 * choice is to return an error and abort the device initialization.
2119 */
6c483de1 2120 if (ver.fw_variant != 0x06) {
cda0dd78 2121 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
6c483de1 2122 hdev->name, ver.fw_variant);
cda0dd78
MH		 2123 return -ENODEV;
2124 }
2125
cda0dd78
MH		 2126 /* Read the secure boot parameters to identify the operating
2127 * details of the bootloader.
2128 */
2129 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2130 if (IS_ERR(skb)) {
2131 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2132 hdev->name, PTR_ERR(skb));
2133 return PTR_ERR(skb);
2134 }
2135
2136 if (skb->len != sizeof(*params)) {
2137 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2138 kfree_skb(skb);
2139 return -EILSEQ;
2140 }
2141
2142 params = (struct intel_boot_params *)skb->data;
cda0dd78 2143
2064ee33
MH		 2144 bt_dev_info(hdev, "Device revision is %u",
2145 le16_to_cpu(params->dev_revid));
cda0dd78 2146
2064ee33
MH		 2147 bt_dev_info(hdev, "Secure boot is %s",
2148 params->secure_boot ? "enabled" : "disabled");
cda0dd78 2149
2064ee33
MH		 2150 bt_dev_info(hdev, "OTP lock is %s",
2151 params->otp_lock ? "enabled" : "disabled");
2220994e 2152
2064ee33
MH		 2153 bt_dev_info(hdev, "API lock is %s",
2154 params->api_lock ? "enabled" : "disabled");
2220994e 2155
2064ee33
MH		 2156 bt_dev_info(hdev, "Debug lock is %s",
2157 params->debug_lock ? "enabled" : "disabled");
2220994e 2158
2064ee33
MH		 2159 bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
2160 params->min_fw_build_nn, params->min_fw_build_cw,
2161 2000 + params->min_fw_build_yy);
cda0dd78
MH		 2162
2163 /* It is required that every single firmware fragment is acknowledged
2164 * with a command complete event. If the boot parameters indicate
2165 * that this bootloader does not send them, then abort the setup.
2166 */
2167 if (params->limited_cce != 0x00) {
2168 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2169 hdev->name, params->limited_cce);
2170 kfree_skb(skb);
2171 return -EINVAL;
2172 }
2173
2174 /* If the OTP has no valid Bluetooth device address, then there will
2175 * also be no valid address for the operational firmware.
2176 */
2177 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2064ee33 2178 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2179 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2180 }
2181
2182 /* With this Intel bootloader only the hardware variant and device
af3715e5
J		 2183 * revision information are used to select the right firmware for SfP
2184 * and WsP.
cda0dd78 2185 *
230b04ac
THJA		 2186 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2187 *
2188 * Currently the supported hardware variants are:
2189 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2190 * 12 (0x0c) for iBT3.5 (WsP)
af3715e5
J		 2191 *
2192 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2193 * variant, HW revision and FW revision, as these are dependent on CNVi
2194 * and RF Combination.
2195 *
86a6129a
THJA		 2196 * 17 (0x11) for iBT3.5 (JfP)
2197 * 18 (0x12) for iBT3.5 (ThP)
af3715e5
J		 2198 *
2199 * The firmware file name for these will be
2200 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2201 *
cda0dd78 2202 */
af3715e5
J		 2203 switch (ver.hw_variant) {
2204 case 0x0b: /* SfP */
2205 case 0x0c: /* WsP */
2206 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2207 le16_to_cpu(ver.hw_variant),
2208 le16_to_cpu(params->dev_revid));
2209 break;
2210 case 0x11: /* JfP */
2211 case 0x12: /* ThP */
d6608ee5
THJA		 2212 case 0x13: /* HrP */
2213 case 0x14: /* QnJ, IcP */
af3715e5
J		 2214 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2215 le16_to_cpu(ver.hw_variant),
2216 le16_to_cpu(ver.hw_revision),
2217 le16_to_cpu(ver.fw_revision));
2218 break;
2219 default:
2220 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2221 return -EINVAL;
2222 }
cda0dd78
MH		 2223
2224 err = request_firmware(&fw, fwname, &hdev->dev);
2225 if (err < 0) {
2226 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2227 hdev->name, err);
2228 kfree_skb(skb);
2229 return err;
2230 }
2231
2064ee33 2232 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2233
52cc9168
THJA		 2234 /* Save the DDC file name for later use to apply once the firmware
2235 * downloading is done.
2236 */
af3715e5
J		 2237 switch (ver.hw_variant) {
2238 case 0x0b: /* SfP */
2239 case 0x0c: /* WsP */
2240 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2241 le16_to_cpu(ver.hw_variant),
2242 le16_to_cpu(params->dev_revid));
2243 break;
2244 case 0x11: /* JfP */
2245 case 0x12: /* ThP */
d6608ee5
THJA		 2246 case 0x13: /* HrP */
2247 case 0x14: /* QnJ, IcP */
af3715e5
J		 2248 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2249 le16_to_cpu(ver.hw_variant),
2250 le16_to_cpu(ver.hw_revision),
2251 le16_to_cpu(ver.fw_revision));
2252 break;
2253 default:
2254 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2255 return -EINVAL;
2256 }
52cc9168 2257
cda0dd78
MH		 2258 kfree_skb(skb);
2259
2260 if (fw->size < 644) {
2261 BT_ERR("%s: Invalid size of firmware file (%zu)",
2262 hdev->name, fw->size);
2263 err = -EBADF;
2264 goto done;
2265 }
2266
2267 set_bit(BTUSB_DOWNLOADING, &data->flags);
2268
2269 /* Start the firmware download transaction with the Init fragment
2270 * represented by the 128 bytes of CSS header.
2271 */
09df123d 2272 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2273 if (err < 0) {
2274 BT_ERR("%s: Failed to send firmware header (%d)",
2275 hdev->name, err);
2276 goto done;
2277 }
2278
2279 /* Send the 256 bytes of public key information from the firmware
2280 * as the PKey fragment.
2281 */
09df123d 2282 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2283 if (err < 0) {
2284 BT_ERR("%s: Failed to send firmware public key (%d)",
2285 hdev->name, err);
2286 goto done;
2287 }
2288
2289 /* Send the 256 bytes of signature information from the firmware
2290 * as the Sign fragment.
2291 */
09df123d 2292 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2293 if (err < 0) {
2294 BT_ERR("%s: Failed to send firmware signature (%d)",
2295 hdev->name, err);
2296 goto done;
2297 }
2298
2299 fw_ptr = fw->data + 644;
e66890a9 2300 frag_len = 0;
cda0dd78
MH		 2301
2302 while (fw_ptr - fw->data < fw->size) {
e66890a9 2303 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2304
e66890a9 2305 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2306
5075edae 2307 /* The parameter length of the secure send command requires
e66890a9
MH		 2308 * a 4 byte alignment. It happens so that the firmware file
2309 * contains proper Intel_NOP commands to align the fragments
2310 * as needed.
2311 *
2312 * Send set of commands with 4 byte alignment from the
2313 * firmware data buffer as a single Data fragement.
cda0dd78 2314 */
e66890a9 2315 if (!(frag_len % 4)) {
09df123d 2316 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2317 if (err < 0) {
2318 BT_ERR("%s: Failed to send firmware data (%d)",
2319 hdev->name, err);
2320 goto done;
2321 }
cda0dd78 2322
e66890a9
MH		 2323 fw_ptr += frag_len;
2324 frag_len = 0;
2325 }
cda0dd78
MH		 2326 }
2327
ce6bb929
MH		 2328 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2329
2064ee33 2330 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2331
cda0dd78
MH		 2332 /* Before switching the device into operational mode and with that
2333 * booting the loaded firmware, wait for the bootloader notification
2334 * that all fragments have been successfully received.
2335 *
a087a98e
JH		 2336 * When the event processing receives the notification, then the
2337 * BTUSB_DOWNLOADING flag will be cleared.
2338 *
2339 * The firmware loading should not take longer than 5 seconds
2340 * and thus just timeout if that happens and fail the setup
2341 * of this device.
cda0dd78 2342 */
129a7693
JH		 2343 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2344 TASK_INTERRUPTIBLE,
2345 msecs_to_jiffies(5000));
f0a70a04 2346 if (err == -EINTR) {
a087a98e 2347 BT_ERR("%s: Firmware loading interrupted", hdev->name);
a087a98e
JH		 2348 goto done;
2349 }
cda0dd78 2350
a087a98e
JH		 2351 if (err) {
2352 BT_ERR("%s: Firmware loading timeout", hdev->name);
2353 err = -ETIMEDOUT;
2354 goto done;
cda0dd78
MH		 2355 }
2356
2357 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2358 BT_ERR("%s: Firmware loading failed", hdev->name);
2359 err = -ENOEXEC;
2360 goto done;
2361 }
2362
2363 rettime = ktime_get();
2364 delta = ktime_sub(rettime, calltime);
2365 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2366
2064ee33 2367 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2368
2369done:
2370 release_firmware(fw);
2371
2372 if (err < 0)
2373 return err;
2374
2375 calltime = ktime_get();
2376
2377 set_bit(BTUSB_BOOTING, &data->flags);
2378
2379 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2380 HCI_INIT_TIMEOUT);
2381 if (IS_ERR(skb))
2382 return PTR_ERR(skb);
2383
2384 kfree_skb(skb);
2385
2386 /* The bootloader will not indicate when the device is ready. This
2387 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2388 *
2389 * Booting into operational firmware should not take longer than
2390 * 1 second. However if that happens, then just fail the setup
2391 * since something went wrong.
cda0dd78 2392 */
2064ee33 2393 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2394
129a7693
JH		 2395 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2396 TASK_INTERRUPTIBLE,
2397 msecs_to_jiffies(1000));
cda0dd78 2398
f0a70a04 2399 if (err == -EINTR) {
fad70972
JH		 2400 BT_ERR("%s: Device boot interrupted", hdev->name);
2401 return -EINTR;
2402 }
cda0dd78 2403
fad70972
JH		 2404 if (err) {
2405 BT_ERR("%s: Device boot timeout", hdev->name);
2406 return -ETIMEDOUT;
cda0dd78
MH		 2407 }
2408
2409 rettime = ktime_get();
2410 delta = ktime_sub(rettime, calltime);
2411 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2412
2064ee33 2413 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2414
2415 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2416
52cc9168
THJA		 2417 /* Once the device is running in operational mode, it needs to apply
2418 * the device configuration (DDC) parameters.
2419 *
2420 * The device can work without DDC parameters, so even if it fails
2421 * to load the file, no need to fail the setup.
2422 */
e924d3d6 2423 btintel_load_ddc_config(hdev, fwname);
52cc9168 2424
213445b2
MH		 2425 /* Set the event mask for Intel specific vendor events. This enables
2426 * a few extra events that are useful during general operation. It
2427 * does not enable any debugging related events.
2428 *
2429 * The device will function correctly without these events enabled
2430 * and thus no need to fail the setup.
2431 */
2432 btintel_set_event_mask(hdev, false);
2433
cda0dd78
MH		 2434 return 0;
2435}
2436
bfbd45e9
THJA		 2437static int btusb_shutdown_intel(struct hci_dev *hdev)
2438{
2439 struct sk_buff *skb;
2440 long ret;
2441
2442 /* Some platforms have an issue with BT LED when the interface is
2443 * down or BT radio is turned off, which takes 5 seconds to BT LED
2444 * goes off. This command turns off the BT LED immediately.
2445 */
2446 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2447 if (IS_ERR(skb)) {
2448 ret = PTR_ERR(skb);
2449 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2450 hdev->name, ret);
2451 return ret;
2452 }
2453 kfree_skb(skb);
2454
2455 return 0;
2456}
2457
a4ccc9e3
RJ		 2458#ifdef CONFIG_PM
2459/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2460static int marvell_config_oob_wake(struct hci_dev *hdev)
2461{
2462 struct sk_buff *skb;
2463 struct btusb_data *data = hci_get_drvdata(hdev);
2464 struct device *dev = &data->udev->dev;
2465 u16 pin, gap, opcode;
2466 int ret;
2467 u8 cmd[5];
2468
2469 /* Move on if no wakeup pin specified */
2470 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2471 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2472 return 0;
2473
2474 /* Vendor specific command to configure a GPIO as wake-up pin */
2475 opcode = hci_opcode_pack(0x3F, 0x59);
2476 cmd[0] = opcode & 0xFF;
2477 cmd[1] = opcode >> 8;
2478 cmd[2] = 2; /* length of parameters that follow */
2479 cmd[3] = pin;
2480 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2481
2482 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2483 if (!skb) {
2484 bt_dev_err(hdev, "%s: No memory\n", __func__);
2485 return -ENOMEM;
2486 }
2487
59ae1d12 2488 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 2489 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2490
2491 ret = btusb_send_frame(hdev, skb);
2492 if (ret) {
2493 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2494 kfree_skb(skb);
2495 return ret;
2496 }
2497
2498 return 0;
2499}
2500#endif
2501
ae8df494
AK		 2502static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2503 const bdaddr_t *bdaddr)
2504{
2505 struct sk_buff *skb;
2506 u8 buf[8];
2507 long ret;
2508
2509 buf[0] = 0xfe;
2510 buf[1] = sizeof(bdaddr_t);
2511 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2512
2513 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2514 if (IS_ERR(skb)) {
2515 ret = PTR_ERR(skb);
2064ee33
MH		 2516 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2517 ret);
ae8df494
AK		 2518 return ret;
2519 }
2520 kfree_skb(skb);
2521
2522 return 0;
2523}
2524
5859223e
TK		 2525static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2526 const bdaddr_t *bdaddr)
2527{
2528 struct sk_buff *skb;
2529 u8 buf[10];
2530 long ret;
2531
2532 buf[0] = 0x01;
2533 buf[1] = 0x01;
2534 buf[2] = 0x00;
2535 buf[3] = sizeof(bdaddr_t);
2536 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2537
2538 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2539 if (IS_ERR(skb)) {
2540 ret = PTR_ERR(skb);
2064ee33 2541 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 2542 return ret;
2543 }
2544 kfree_skb(skb);
2545
2546 return 0;
2547}
2548
3267c884
KBYT		 2549#define QCA_DFU_PACKET_LEN 4096
2550
2551#define QCA_GET_TARGET_VERSION 0x09
2552#define QCA_CHECK_STATUS 0x05
2553#define QCA_DFU_DOWNLOAD 0x01
2554
2555#define QCA_SYSCFG_UPDATED 0x40
2556#define QCA_PATCH_UPDATED 0x80
2557#define QCA_DFU_TIMEOUT 3000
2558
2559struct qca_version {
2560 __le32 rom_version;
2561 __le32 patch_version;
2562 __le32 ram_version;
2563 __le32 ref_clock;
2564 __u8 reserved[4];
2565} __packed;
2566
2567struct qca_rampatch_version {
2568 __le16 rom_version;
2569 __le16 patch_version;
2570} __packed;
2571
2572struct qca_device_info {
bf906b3d
KBYT		 2573 u32 rom_version;
2574 u8 rampatch_hdr; /* length of header in rampatch */
2575 u8 nvm_hdr; /* length of header in NVM */
2576 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2577};
2578
2579static const struct qca_device_info qca_devices_table[] = {
2580 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2581 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2582 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2583 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2584 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2585 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2586};
2587
e68fc8b7 2588static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3267c884
KBYT		 2589 void *data, u16 size)
2590{
3267c884
KBYT		 2591 int pipe, err;
2592 u8 *buf;
2593
2594 buf = kmalloc(size, GFP_KERNEL);
2595 if (!buf)
2596 return -ENOMEM;
2597
2598 /* Found some of USB hosts have IOT issues with ours so that we should
2599 * not wait until HCI layer is ready.
2600 */
2601 pipe = usb_rcvctrlpipe(udev, 0);
2602 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2603 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2604 if (err < 0) {
e68fc8b7 2605 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 2606 goto done;
2607 }
2608
2609 memcpy(data, buf, size);
2610
2611done:
2612 kfree(buf);
2613
2614 return err;
2615}
2616
2617static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2618 const struct firmware *firmware,
2619 size_t hdr_size)
2620{
2621 struct btusb_data *btdata = hci_get_drvdata(hdev);
2622 struct usb_device *udev = btdata->udev;
2623 size_t count, size, sent = 0;
2624 int pipe, len, err;
2625 u8 *buf;
2626
2627 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2628 if (!buf)
2629 return -ENOMEM;
2630
2631 count = firmware->size;
2632
2633 size = min_t(size_t, count, hdr_size);
2634 memcpy(buf, firmware->data, size);
2635
2636 /* USB patches should go down to controller through USB path
2637 * because binary format fits to go down through USB channel.
2638 * USB control path is for patching headers and USB bulk is for
2639 * patch body.
2640 */
2641 pipe = usb_sndctrlpipe(udev, 0);
2642 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2643 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2644 if (err < 0) {
2064ee33 2645 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 2646 goto done;
2647 }
2648
2649 sent += size;
2650 count -= size;
2651
2652 while (count) {
2653 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2654
2655 memcpy(buf, firmware->data + sent, size);
2656
2657 pipe = usb_sndbulkpipe(udev, 0x02);
2658 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2659 QCA_DFU_TIMEOUT);
2660 if (err < 0) {
2064ee33
MH		 2661 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2662 sent, firmware->size, err);
3267c884
KBYT		 2663 break;
2664 }
2665
2666 if (size != len) {
2064ee33 2667 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 2668 err = -EILSEQ;
2669 break;
2670 }
2671
2672 sent += size;
2673 count -= size;
2674 }
2675
2676done:
2677 kfree(buf);
2678 return err;
2679}
2680
2681static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2682 struct qca_version *ver,
2683 const struct qca_device_info *info)
2684{
2685 struct qca_rampatch_version *rver;
2686 const struct firmware *fw;
bf906b3d
KBYT		 2687 u32 ver_rom, ver_patch;
2688 u16 rver_rom, rver_patch;
3267c884
KBYT		 2689 char fwname[64];
2690 int err;
2691
bf906b3d
KBYT		 2692 ver_rom = le32_to_cpu(ver->rom_version);
2693 ver_patch = le32_to_cpu(ver->patch_version);
2694
2695 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2696
2697 err = request_firmware(&fw, fwname, &hdev->dev);
2698 if (err) {
2064ee33
MH		 2699 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2700 fwname, err);
3267c884
KBYT		 2701 return err;
2702 }
2703
2064ee33 2704 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 2705
3267c884 2706 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2707 rver_rom = le16_to_cpu(rver->rom_version);
2708 rver_patch = le16_to_cpu(rver->patch_version);
2709
2064ee33
MH		 2710 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2711 "firmware rome 0x%x build 0x%x",
2712 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 2713
bf906b3d 2714 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 2715 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 2716 err = -EINVAL;
2717 goto done;
2718 }
2719
2720 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2721
2722done:
2723 release_firmware(fw);
2724
2725 return err;
2726}
2727
2728static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2729 struct qca_version *ver,
2730 const struct qca_device_info *info)
2731{
2732 const struct firmware *fw;
2733 char fwname[64];
2734 int err;
2735
2736 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2737 le32_to_cpu(ver->rom_version));
2738
2739 err = request_firmware(&fw, fwname, &hdev->dev);
2740 if (err) {
2064ee33
MH		 2741 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2742 fwname, err);
3267c884
KBYT		 2743 return err;
2744 }
2745
2064ee33 2746 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 2747
2748 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2749
2750 release_firmware(fw);
2751
2752 return err;
2753}
2754
e68fc8b7
TI		 2755/* identify the ROM version and check whether patches are needed */
2756static bool btusb_qca_need_patch(struct usb_device *udev)
2757{
2758 struct qca_version ver;
2759
2760 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
2761 sizeof(ver)) < 0)
2762 return false;
2763 /* only low ROM versions need patches */
2764 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
2765}
2766
3267c884
KBYT		 2767static int btusb_setup_qca(struct hci_dev *hdev)
2768{
e68fc8b7
TI		 2769 struct btusb_data *btdata = hci_get_drvdata(hdev);
2770 struct usb_device *udev = btdata->udev;
3267c884
KBYT		 2771 const struct qca_device_info *info = NULL;
2772 struct qca_version ver;
bf906b3d 2773 u32 ver_rom;
3267c884
KBYT		 2774 u8 status;
2775 int i, err;
2776
e68fc8b7 2777 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2778 sizeof(ver));
3267c884
KBYT		 2779 if (err < 0)
2780 return err;
2781
bf906b3d 2782 ver_rom = le32_to_cpu(ver.rom_version);
e68fc8b7
TI		 2783 /* Don't care about high ROM versions */
2784 if (ver_rom & ~0xffffU)
2785 return 0;
2786
3267c884 2787 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2788 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2789 info = &qca_devices_table[i];
2790 }
2791 if (!info) {
2064ee33 2792 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 2793 return -ENODEV;
2794 }
2795
e68fc8b7 2796 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3267c884
KBYT		 2797 sizeof(status));
2798 if (err < 0)
2799 return err;
2800
2801 if (!(status & QCA_PATCH_UPDATED)) {
2802 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2803 if (err < 0)
2804 return err;
2805 }
2806
2807 if (!(status & QCA_SYSCFG_UPDATED)) {
2808 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2809 if (err < 0)
2810 return err;
2811 }
2812
2813 return 0;
2814}
2815
9d08f504
MH		 2816#ifdef CONFIG_BT_HCIBTUSB_BCM
2817static inline int __set_diag_interface(struct hci_dev *hdev)
2818{
2819 struct btusb_data *data = hci_get_drvdata(hdev);
2820 struct usb_interface *intf = data->diag;
2821 int i;
2822
2823 if (!data->diag)
2824 return -ENODEV;
2825
2826 data->diag_tx_ep = NULL;
2827 data->diag_rx_ep = NULL;
2828
2829 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2830 struct usb_endpoint_descriptor *ep_desc;
2831
2832 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2833
2834 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2835 data->diag_tx_ep = ep_desc;
2836 continue;
2837 }
2838
2839 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2840 data->diag_rx_ep = ep_desc;
2841 continue;
2842 }
2843 }
2844
2845 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 2846 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 2847 return -ENODEV;
2848 }
2849
2850 return 0;
2851}
2852
2853static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2854{
2855 struct btusb_data *data = hci_get_drvdata(hdev);
2856 struct sk_buff *skb;
2857 struct urb *urb;
2858 unsigned int pipe;
2859
2860 if (!data->diag_tx_ep)
2861 return ERR_PTR(-ENODEV);
2862
2863 urb = usb_alloc_urb(0, GFP_KERNEL);
2864 if (!urb)
2865 return ERR_PTR(-ENOMEM);
2866
2867 skb = bt_skb_alloc(2, GFP_KERNEL);
2868 if (!skb) {
2869 usb_free_urb(urb);
2870 return ERR_PTR(-ENOMEM);
2871 }
2872
634fef61
JB		 2873 skb_put_u8(skb, 0xf0);
2874 skb_put_u8(skb, enable);
9d08f504
MH		 2875
2876 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2877
2878 usb_fill_bulk_urb(urb, data->udev, pipe,
2879 skb->data, skb->len, btusb_tx_complete, skb);
2880
2881 skb->dev = (void *)hdev;
2882
2883 return urb;
2884}
2885
2886static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2887{
2888 struct btusb_data *data = hci_get_drvdata(hdev);
2889 struct urb *urb;
2890
2891 if (!data->diag)
2892 return -ENODEV;
2893
2894 if (!test_bit(HCI_RUNNING, &hdev->flags))
2895 return -ENETDOWN;
2896
2897 urb = alloc_diag_urb(hdev, enable);
2898 if (IS_ERR(urb))
2899 return PTR_ERR(urb);
2900
2901 return submit_or_queue_tx_urb(hdev, urb);
2902}
2903#endif
2904
fd913ef7
RJ		 2905#ifdef CONFIG_PM
2906static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2907{
2908 struct btusb_data *data = priv;
2909
2910 pm_wakeup_event(&data->udev->dev, 0);
017789f3 2911 pm_system_wakeup();
fd913ef7
RJ		 2912
2913 /* Disable only if not already disabled (keep it balanced) */
2914 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2915 disable_irq_nosync(irq);
2916 disable_irq_wake(irq);
2917 }
2918 return IRQ_HANDLED;
2919}
2920
2921static const struct of_device_id btusb_match_table[] = {
2922 { .compatible = "usb1286,204e" },
2923 { }
2924};
2925MODULE_DEVICE_TABLE(of, btusb_match_table);
2926
2927/* Use an oob wakeup pin? */
2928static int btusb_config_oob_wake(struct hci_dev *hdev)
2929{
2930 struct btusb_data *data = hci_get_drvdata(hdev);
2931 struct device *dev = &data->udev->dev;
2932 int irq, ret;
2933
2934 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2935
2936 if (!of_match_device(btusb_match_table, dev))
2937 return 0;
2938
2939 /* Move on if no IRQ specified */
2940 irq = of_irq_get_byname(dev->of_node, "wakeup");
2941 if (irq <= 0) {
2942 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2943 return 0;
2944 }
2945
2946 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2947 0, "OOB Wake-on-BT", data);
2948 if (ret) {
2949 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2950 return ret;
2951 }
2952
2953 ret = device_init_wakeup(dev, true);
2954 if (ret) {
2955 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2956 return ret;
2957 }
2958
2959 data->oob_wake_irq = irq;
2960 disable_irq(irq);
2961 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2962 return 0;
2963}
2964#endif
2965
2eaeba6d
HG		 2966static void btusb_check_needs_reset_resume(struct usb_interface *intf)
2967{
2968 if (dmi_check_system(btusb_needs_reset_resume_table))
2969 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
2970}
2971
5e23b923 2972static int btusb_probe(struct usb_interface *intf,
89e7533d 2973 const struct usb_device_id *id)
5e23b923
MH		 2974{
2975 struct usb_endpoint_descriptor *ep_desc;
2976 struct btusb_data *data;
2977 struct hci_dev *hdev;
22f8e9db 2978 unsigned ifnum_base;
5e23b923
MH		 2979 int i, err;
2980
2981 BT_DBG("intf %p id %p", intf, id);
2982
cfeb4145 2983 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2984 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2985 if (!(id->driver_info & BTUSB_IFNUM_2))
2986 return -ENODEV;
2987 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2988 return -ENODEV;
2989 }
2990
2991 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2992
2993 if (!id->driver_info) {
2994 const struct usb_device_id *match;
89e7533d 2995
5e23b923
MH		 2996 match = usb_match_id(intf, blacklist_table);
2997 if (match)
2998 id = match;
2999 }
3000
cfeb4145
MH		 3001 if (id->driver_info == BTUSB_IGNORE)
3002 return -ENODEV;
3003
2d25f8b4
SL		 3004 if (id->driver_info & BTUSB_ATH3012) {
3005 struct usb_device *udev = interface_to_usbdev(intf);
3006
3007 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 3008 * patch and sysconfig files
3009 */
e68fc8b7
TI		 3010 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3011 !btusb_qca_need_patch(udev))
2d25f8b4
SL		 3012 return -ENODEV;
3013 }
3014
98921dbd 3015 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 3016 if (!data)
3017 return -ENOMEM;
3018
3019 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3020 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3021
3022 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3023 data->intr_ep = ep_desc;
3024 continue;
3025 }
3026
3027 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3028 data->bulk_tx_ep = ep_desc;
3029 continue;
3030 }
3031
3032 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3033 data->bulk_rx_ep = ep_desc;
3034 continue;
3035 }
3036 }
3037
98921dbd 3038 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 3039 return -ENODEV;
5e23b923 3040
893ba544
MH		 3041 if (id->driver_info & BTUSB_AMP) {
3042 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3043 data->cmdreq = 0x2b;
3044 } else {
3045 data->cmdreq_type = USB_TYPE_CLASS;
3046 data->cmdreq = 0x00;
3047 }
7a9d4020 3048
5e23b923 3049 data->udev = interface_to_usbdev(intf);
5fbcd260 3050 data->intf = intf;
5e23b923 3051
5e23b923 3052 INIT_WORK(&data->work, btusb_work);
7bee549e 3053 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 3054 init_usb_anchor(&data->deferred);
3055 init_usb_anchor(&data->tx_anchor);
7bee549e 3056 spin_lock_init(&data->txlock);
5e23b923 3057
5e23b923
MH		 3058 init_usb_anchor(&data->intr_anchor);
3059 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 3060 init_usb_anchor(&data->isoc_anchor);
9d08f504 3061 init_usb_anchor(&data->diag_anchor);
803b5836 3062 spin_lock_init(&data->rxlock);
5e23b923 3063
cda0dd78
MH		 3064 if (id->driver_info & BTUSB_INTEL_NEW) {
3065 data->recv_event = btusb_recv_event_intel;
3066 data->recv_bulk = btusb_recv_bulk_intel;
3067 set_bit(BTUSB_BOOTLOADER, &data->flags);
3068 } else {
3069 data->recv_event = hci_recv_frame;
3070 data->recv_bulk = btusb_recv_bulk;
3071 }
2cbd3f5c 3072
5e23b923 3073 hdev = hci_alloc_dev();
98921dbd 3074 if (!hdev)
5e23b923 3075 return -ENOMEM;
5e23b923 3076
c13854ce 3077 hdev->bus = HCI_USB;
155961e8 3078 hci_set_drvdata(hdev, data);
5e23b923 3079
893ba544
MH		 3080 if (id->driver_info & BTUSB_AMP)
3081 hdev->dev_type = HCI_AMP;
3082 else
ca8bee5d 3083 hdev->dev_type = HCI_PRIMARY;
893ba544 3084
5e23b923
MH		 3085 data->hdev = hdev;
3086
3087 SET_HCIDEV_DEV(hdev, &intf->dev);
3088
9f8f962c
MH		 3089 hdev->open = btusb_open;
3090 hdev->close = btusb_close;
3091 hdev->flush = btusb_flush;
3092 hdev->send = btusb_send_frame;
3093 hdev->notify = btusb_notify;
3094
fd913ef7
RJ		 3095#ifdef CONFIG_PM
3096 err = btusb_config_oob_wake(hdev);
3097 if (err)
3098 goto out_free_dev;
a4ccc9e3
RJ		 3099
3100 /* Marvell devices may need a specific chip configuration */
3101 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3102 err = marvell_config_oob_wake(hdev);
3103 if (err)
3104 goto out_free_dev;
3105 }
fd913ef7 3106#endif
418678b0
SJ		 3107 if (id->driver_info & BTUSB_CW6622)
3108 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3109
6c9d435d
MH		 3110 if (id->driver_info & BTUSB_BCM2045)
3111 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3112
9f8f962c
MH		 3113 if (id->driver_info & BTUSB_BCM92035)
3114 hdev->setup = btusb_setup_bcm92035;
5e23b923 3115
c2bfb100 3116#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 3117 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 3118 hdev->manufacturer = 15;
c2bfb100 3119 hdev->setup = btbcm_setup_patchram;
9d08f504 3120 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3121 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3122
3123 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3124 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3125 }
10d4c673 3126
9d08f504 3127 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 3128 hdev->manufacturer = 15;
c2bfb100 3129 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3130 hdev->set_diag = btusb_bcm_set_diag;
3131
3132 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3133 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3134 }
c2bfb100 3135#endif
17b2772b 3136
cb8d6597 3137 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3138 hdev->manufacturer = 2;
dffd30ee 3139 hdev->setup = btusb_setup_intel;
bfbd45e9 3140 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3141 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3142 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 3143 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3144 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3145 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3146 }
dffd30ee 3147
cda0dd78 3148 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3149 hdev->manufacturer = 2;
cda0dd78
MH		 3150 hdev->send = btusb_send_frame_intel;
3151 hdev->setup = btusb_setup_intel_new;
eeb6abe9 3152 hdev->hw_error = btintel_hw_error;
6d2e50d2 3153 hdev->set_diag = btintel_set_diag;
4185a0f5 3154 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 3155 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 3156 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3157 }
3158
ae8df494
AK		 3159 if (id->driver_info & BTUSB_MARVELL)
3160 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3161
661cf88a
MH		 3162 if (id->driver_info & BTUSB_SWAVE) {
3163 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3164 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3165 }
d57dbe77 3166
e4c534bb
MH		 3167 if (id->driver_info & BTUSB_INTEL_BOOT) {
3168 hdev->manufacturer = 2;
40df783d 3169 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3170 }
40df783d 3171
79f0c87d 3172 if (id->driver_info & BTUSB_ATH3012) {
e68fc8b7 3173 data->setup_on_usb = btusb_setup_qca;
5859223e 3174 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3175 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3176 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3177 }
5859223e 3178
3267c884
KBYT		 3179 if (id->driver_info & BTUSB_QCA_ROME) {
3180 data->setup_on_usb = btusb_setup_qca;
3181 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2eaeba6d 3182 btusb_check_needs_reset_resume(intf);
3267c884
KBYT		 3183 }
3184
db33c77d 3185#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 3186 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 3187 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 3188
3189 /* Realtek devices lose their updated firmware over suspend,
3190 * but the USB hub doesn't notice any status change.
3191 * Explicitly request a device reset on resume.
3192 */
18970430 3193 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
04b8c814 3194 }
db33c77d 3195#endif
a2698a9b 3196
893ba544
MH		 3197 if (id->driver_info & BTUSB_AMP) {
3198 /* AMP controllers do not support SCO packets */
3199 data->isoc = NULL;
3200 } else {
22f8e9db
MH		 3201 /* Interface orders are hardcoded in the specification */
3202 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
459232fc 3203 data->isoc_ifnum = ifnum_base + 1;
893ba544 3204 }
9bfa35fe 3205
7a9d4020 3206 if (!reset)
a6c511c6 3207 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3208
3209 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3210 if (!disable_scofix)
3211 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3212 }
3213
9bfa35fe
MH		 3214 if (id->driver_info & BTUSB_BROKEN_ISOC)
3215 data->isoc = NULL;
3216
7a9d4020
MH		 3217 if (id->driver_info & BTUSB_DIGIANSWER) {
3218 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3219 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3220 }
3221
3222 if (id->driver_info & BTUSB_CSR) {
3223 struct usb_device *udev = data->udev;
81cac64b 3224 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3225
3226 /* Old firmware would otherwise execute USB reset */
81cac64b 3227 if (bcdDevice < 0x117)
a6c511c6 3228 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3229
3230 /* Fake CSR devices with broken commands */
6cafcd95 3231 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3232 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3233
3234 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3235 }
3236
cfeb4145 3237 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3238 struct usb_device *udev = data->udev;
cfeb4145 3239
7a9d4020 3240 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3241 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3242 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3243 }
3244
3a5ef20c
MH		 3245 if (id->driver_info & BTUSB_INTEL_BOOT) {
3246 /* A bug in the bootloader causes that interrupt interface is
3247 * only enabled after receiving SetInterface(0, AltSetting=0).
3248 */
3249 err = usb_set_interface(data->udev, 0, 0);
3250 if (err < 0) {
3251 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3252 goto out_free_dev;
3a5ef20c
MH		 3253 }
3254 }
3255
9bfa35fe
MH		 3256 if (data->isoc) {
3257 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3258 data->isoc, data);
10ab133b
RJ		 3259 if (err < 0)
3260 goto out_free_dev;
9bfa35fe
MH		 3261 }
3262
9d08f504
MH		 3263#ifdef CONFIG_BT_HCIBTUSB_BCM
3264 if (data->diag) {
3265 if (!usb_driver_claim_interface(&btusb_driver,
3266 data->diag, data))
3267 __set_diag_interface(hdev);
3268 else
3269 data->diag = NULL;
3270 }
3271#endif
3272
5e23b923 3273 err = hci_register_dev(hdev);
10ab133b
RJ		 3274 if (err < 0)
3275 goto out_free_dev;
5e23b923
MH		 3276
3277 usb_set_intfdata(intf, data);
3278
3279 return 0;
10ab133b
RJ		 3280
3281out_free_dev:
3282 hci_free_dev(hdev);
3283 return err;
5e23b923
MH		 3284}
3285
3286static void btusb_disconnect(struct usb_interface *intf)
3287{
3288 struct btusb_data *data = usb_get_intfdata(intf);
3289 struct hci_dev *hdev;
3290
3291 BT_DBG("intf %p", intf);
3292
3293 if (!data)
3294 return;
3295
3296 hdev = data->hdev;
5fbcd260
MH		 3297 usb_set_intfdata(data->intf, NULL);
3298
3299 if (data->isoc)
3300 usb_set_intfdata(data->isoc, NULL);
5e23b923 3301
9d08f504
MH		 3302 if (data->diag)
3303 usb_set_intfdata(data->diag, NULL);
3304
5e23b923
MH		 3305 hci_unregister_dev(hdev);
3306
9d08f504
MH		 3307 if (intf == data->intf) {
3308 if (data->isoc)
3309 usb_driver_release_interface(&btusb_driver, data->isoc);
3310 if (data->diag)
3311 usb_driver_release_interface(&btusb_driver, data->diag);
3312 } else if (intf == data->isoc) {
3313 if (data->diag)
3314 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3315 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3316 } else if (intf == data->diag) {
3317 usb_driver_release_interface(&btusb_driver, data->intf);
3318 if (data->isoc)
3319 usb_driver_release_interface(&btusb_driver, data->isoc);
3320 }
5fbcd260 3321
fd913ef7
RJ		 3322 if (data->oob_wake_irq)
3323 device_init_wakeup(&data->udev->dev, false);
3324
5e23b923
MH		 3325 hci_free_dev(hdev);
3326}
3327
7bee549e 3328#ifdef CONFIG_PM
6a88adf2
MH		 3329static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3330{
3331 struct btusb_data *data = usb_get_intfdata(intf);
3332
3333 BT_DBG("intf %p", intf);
3334
3335 if (data->suspend_count++)
3336 return 0;
3337
7bee549e 3338 spin_lock_irq(&data->txlock);
5b1b0b81 3339 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3340 set_bit(BTUSB_SUSPENDING, &data->flags);
3341 spin_unlock_irq(&data->txlock);
3342 } else {
3343 spin_unlock_irq(&data->txlock);
3344 data->suspend_count--;
3345 return -EBUSY;
3346 }
3347
6a88adf2
MH		 3348 cancel_work_sync(&data->work);
3349
7bee549e 3350 btusb_stop_traffic(data);
6a88adf2
MH		 3351 usb_kill_anchored_urbs(&data->tx_anchor);
3352
fd913ef7
RJ		 3353 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3354 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3355 enable_irq_wake(data->oob_wake_irq);
3356 enable_irq(data->oob_wake_irq);
3357 }
3358
6a88adf2
MH		 3359 return 0;
3360}
3361
7bee549e
ON		 3362static void play_deferred(struct btusb_data *data)
3363{
3364 struct urb *urb;
3365 int err;
3366
3367 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 3368 usb_anchor_urb(urb, &data->tx_anchor);
3369
7bee549e 3370 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 3371 if (err < 0) {
3372 if (err != -EPERM && err != -ENODEV)
3373 BT_ERR("%s urb %p submission failed (%d)",
3374 data->hdev->name, urb, -err);
3375 kfree(urb->setup_packet);
3376 usb_unanchor_urb(urb);
3377 usb_free_urb(urb);
7bee549e 3378 break;
19cfe912 3379 }
7bee549e
ON		 3380
3381 data->tx_in_flight++;
19cfe912
JC		 3382 usb_free_urb(urb);
3383 }
3384
3385 /* Cleanup the rest deferred urbs. */
3386 while ((urb = usb_get_from_anchor(&data->deferred))) {
3387 kfree(urb->setup_packet);
3388 usb_free_urb(urb);
7bee549e 3389 }
7bee549e
ON		 3390}
3391
6a88adf2
MH		 3392static int btusb_resume(struct usb_interface *intf)
3393{
3394 struct btusb_data *data = usb_get_intfdata(intf);
3395 struct hci_dev *hdev = data->hdev;
7bee549e 3396 int err = 0;
6a88adf2
MH		 3397
3398 BT_DBG("intf %p", intf);
3399
3400 if (--data->suspend_count)
3401 return 0;
3402
fd913ef7
RJ		 3403 /* Disable only if not already disabled (keep it balanced) */
3404 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3405 disable_irq(data->oob_wake_irq);
3406 disable_irq_wake(data->oob_wake_irq);
3407 }
3408
6a88adf2 3409 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3410 goto done;
6a88adf2
MH		 3411
3412 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3413 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3414 if (err < 0) {
3415 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3416 goto failed;
6a88adf2
MH		 3417 }
3418 }
3419
3420 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3421 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3422 if (err < 0) {
6a88adf2 3423 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3424 goto failed;
3425 }
3426
3427 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3428 }
3429
3430 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3431 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3432 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3433 else
3434 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3435 }
3436
7bee549e
ON		 3437 spin_lock_irq(&data->txlock);
3438 play_deferred(data);
3439 clear_bit(BTUSB_SUSPENDING, &data->flags);
3440 spin_unlock_irq(&data->txlock);
3441 schedule_work(&data->work);
3442
6a88adf2 3443 return 0;
7bee549e
ON		 3444
3445failed:
3446 usb_scuttle_anchored_urbs(&data->deferred);
3447done:
3448 spin_lock_irq(&data->txlock);
3449 clear_bit(BTUSB_SUSPENDING, &data->flags);
3450 spin_unlock_irq(&data->txlock);
3451
3452 return err;
6a88adf2 3453}
7bee549e 3454#endif
6a88adf2 3455
5e23b923
MH		 3456static struct usb_driver btusb_driver = {
3457 .name = "btusb",
3458 .probe = btusb_probe,
3459 .disconnect = btusb_disconnect,
7bee549e 3460#ifdef CONFIG_PM
6a88adf2
MH		 3461 .suspend = btusb_suspend,
3462 .resume = btusb_resume,
7bee549e 3463#endif
5e23b923 3464 .id_table = btusb_table,
7bee549e 3465 .supports_autosuspend = 1,
e1f12eb6 3466 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3467};
3468
93f1508c 3469module_usb_driver(btusb_driver);
5e23b923 3470
cfeb4145
MH		 3471module_param(disable_scofix, bool, 0644);
3472MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3473
3474module_param(force_scofix, bool, 0644);
3475MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3476
3477module_param(reset, bool, 0644);
3478MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3479
5e23b923
MH		 3480MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3481MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3482MODULE_VERSION(VERSION);
3483MODULE_LICENSE("GPL");
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