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Bluetooth: Use bt_dev_err and bt_dev_info when possible
[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
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
fd913ef7
RJ		 27#include <linux/of_device.h>
28#include <linux/of_irq.h>
017789f3 29#include <linux/suspend.h>
a2698a9b 30#include <asm/unaligned.h>
5e23b923
MH		 31
32#include <net/bluetooth/bluetooth.h>
33#include <net/bluetooth/hci_core.h>
34
4185a0f5 35#include "btintel.h"
1df1f591 36#include "btbcm.h"
db33c77d 37#include "btrtl.h"
1df1f591 38
34dced9b 39#define VERSION "0.8"
cfeb4145 40
90ab5ee9
RR		 41static bool disable_scofix;
42static bool force_scofix;
7a9d4020 43
917a3337 44static bool reset = true;
cfeb4145
MH		 45
46static struct usb_driver btusb_driver;
47
48#define BTUSB_IGNORE 0x01
7a9d4020
MH		 49#define BTUSB_DIGIANSWER 0x02
50#define BTUSB_CSR 0x04
51#define BTUSB_SNIFFER 0x08
52#define BTUSB_BCM92035 0x10
53#define BTUSB_BROKEN_ISOC 0x20
54#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 55#define BTUSB_ATH3012 0x80
dffd30ee 56#define BTUSB_INTEL 0x100
40df783d
MH		 57#define BTUSB_INTEL_BOOT 0x200
58#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 59#define BTUSB_MARVELL 0x800
4fcef8ed 60#define BTUSB_SWAVE 0x1000
cda0dd78 61#define BTUSB_INTEL_NEW 0x2000
893ba544 62#define BTUSB_AMP 0x4000
3267c884 63#define BTUSB_QCA_ROME 0x8000
17b2772b 64#define BTUSB_BCM_APPLE 0x10000
a2698a9b 65#define BTUSB_REALTEK 0x20000
6c9d435d 66#define BTUSB_BCM2045 0x40000
22f8e9db 67#define BTUSB_IFNUM_2 0x80000
418678b0 68#define BTUSB_CW6622 0x100000
5e23b923 69
54265202 70static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 71 /* Generic Bluetooth USB device */
72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
73
893ba544
MH		 74 /* Generic Bluetooth AMP device */
75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
76
d63b2826
DD		 77 /* Generic Bluetooth USB interface */
78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
79
1fa6535f 80 /* Apple-specific (Broadcom) devices */
17b2772b 81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 83
178c059e
CYC		 84 /* MediaTek MT76x0E */
85 { USB_DEVICE(0x0e8d, 0x763f) },
86
c510eae3 87 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 88 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 89
3cd01976
NI		 90 /* Apple MacBookPro 7,1 */
91 { USB_DEVICE(0x05ac, 0x8213) },
92
0a79f674
CL		 93 /* Apple iMac11,1 */
94 { USB_DEVICE(0x05ac, 0x8215) },
95
9c047157
NI		 96 /* Apple MacBookPro6,2 */
97 { USB_DEVICE(0x05ac, 0x8218) },
98
3e3ede7d
EH		 99 /* Apple MacBookAir3,1, MacBookAir3,2 */
100 { USB_DEVICE(0x05ac, 0x821b) },
101
a63b723d
PAVM		 102 /* Apple MacBookAir4,1 */
103 { USB_DEVICE(0x05ac, 0x821f) },
104
88d377b6
MAP		 105 /* Apple MacBookPro8,2 */
106 { USB_DEVICE(0x05ac, 0x821a) },
107
f78b6826
JK		 108 /* Apple MacMini5,1 */
109 { USB_DEVICE(0x05ac, 0x8281) },
110
cfeb4145 111 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 113
114 /* Bluetooth Ultraport Module from IBM */
115 { USB_DEVICE(0x04bf, 0x030a) },
116
117 /* ALPS Modules with non-standard id */
118 { USB_DEVICE(0x044e, 0x3001) },
119 { USB_DEVICE(0x044e, 0x3002) },
120
121 /* Ericsson with non-standard id */
122 { USB_DEVICE(0x0bdb, 0x1002) },
123
124 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 125 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 126
d13431ca
WJS		 127 /* Broadcom BCM20702A0 */
128 { USB_DEVICE(0x413c, 0x8197) },
129
d049f4e5
MH		 130 /* Broadcom BCM20702B0 (Dynex/Insignia) */
131 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
132
2faf71ce 133 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
628c26b4
DT		 134 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
2faf71ce 136
a57bac43
CH		 137 /* Broadcom BCM920703 (HTC Vive) */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
98514036 141 /* Foxconn - Hon Hai */
6029ddc2
HS		 142 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 144
8f0c304c
MD		 145 /* Lite-On Technology - Broadcom based */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
0b880062 149 /* Broadcom devices with vendor specific id */
10d4c673
PG		 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 152
c2aef6e8 153 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 154 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 156
5bcecf32 157 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 158 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 160
9113bfd8 161 /* IMC Networks - Broadcom based */
6331c686
MH		 162 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 164
fdfddc60
WJS		 165 /* Dell Computer - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
1623d0bf
DT		 169 /* Toshiba Corp - Broadcom based */
170 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
171 .driver_info = BTUSB_BCM_PATCHRAM },
172
40df783d 173 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 174 { USB_DEVICE(0x8087, 0x0a5a),
175 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 176
5e23b923
MH		 177 { } /* Terminating entry */
178};
179
180MODULE_DEVICE_TABLE(usb, btusb_table);
181
54265202 182static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 183 /* CSR BlueCore devices */
184 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
185
186 /* Broadcom BCM2033 without firmware */
187 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
188
6c9d435d
MH		 189 /* Broadcom BCM2045 devices */
190 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
191
be93112a 192 /* Atheros 3011 with sflash firmware */
0b880062
AS		 193 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 195 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 196 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 197 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 198 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 199 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 200
509e7861
CYC		 201 /* Atheros AR9285 Malbec with sflash firmware */
202 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
203
d9f51b51 204 /* Atheros 3012 with sflash firmware */
0b880062
AS		 205 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 210 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 211 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8 212 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 213 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 217 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 218 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 220 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 221 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 222 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 223 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d 224 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062 225 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 226 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 227 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 228 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 229 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 230 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 231 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 232 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 233 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 234 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 235 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 236 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 237 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 238 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 239 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 240 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 241 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 242 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 243 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 245 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 246 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 247 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 248 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 249 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 250 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 251 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 252 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5 253 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896 254 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51 255
e9036e33
CYC		 256 /* Atheros AR5BBU12 with sflash firmware */
257 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
258
85d59726 259 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 260 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 261 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 262
3267c884 263 /* QCA ROME chipset */
2054111b 264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
93519934 265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
c9e44474 266 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
1eef1c35 267 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
c9e44474 268 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
47ca5898 269 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
858ff38a 270 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
06e41d8a 271 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
1144a4ee 272 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
d829b9e2 273 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
3267c884 274
cfeb4145 275 /* Broadcom BCM2035 */
7a9d4020 276 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 277 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
278 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 279
280 /* Broadcom BCM2045 */
7a9d4020
MH		 281 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
282 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 283
cfeb4145 284 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 285 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
286 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 287
288 /* HP laptop with Broadcom chip */
7a9d4020 289 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 290
291 /* Dell laptop with Broadcom chip */
7a9d4020 292 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 293
5ddd4a60 294 /* Dell Wireless 370 and 410 devices */
7a9d4020 295 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 296 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 297
7a9d4020
MH		 298 /* Belkin F8T012 and F8T013 devices */
299 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
300 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 301
5ddd4a60
MH		 302 /* Asus WL-BTD202 device */
303 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
304
305 /* Kensington Bluetooth USB adapter */
306 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
307
cfeb4145
MH		 308 /* RTX Telecom based adapters with buggy SCO support */
309 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
310 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
311
312 /* CONWISE Technology based adapters with buggy SCO support */
418678b0
SJ		 313 { USB_DEVICE(0x0e5e, 0x6622),
314 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
cfeb4145 315
4fcef8ed 316 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 317 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 318
cfeb4145
MH		 319 /* Digianswer devices */
320 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
321 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
322
323 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 324 { USB_DEVICE(0x0a12, 0x0002),
325 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 326
327 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 328 { USB_DEVICE(0x16d3, 0x0002),
329 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 330
cb1ee89f
MH		 331 /* Marvell Bluetooth devices */
332 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
333 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
1165df0e 334 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
cb1ee89f 335
d0ac9eb7 336 /* Intel Bluetooth devices */
de766142 337 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
407550fe 338 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 339 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 340 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 341 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
439e65d3 342 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
86a6129a 343 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 344
d0ac9eb7
MH		 345 /* Other Intel Bluetooth devices */
346 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
347 .driver_info = BTUSB_IGNORE },
ae8df494 348
a2698a9b
DD		 349 /* Realtek Bluetooth devices */
350 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
351 .driver_info = BTUSB_REALTEK },
352
353 /* Additional Realtek 8723AE Bluetooth devices */
354 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
355 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
356
357 /* Additional Realtek 8723BE Bluetooth devices */
358 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
359 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
360 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
361 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
362 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
a81d72d2 363 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
a2698a9b
DD		 364
365 /* Additional Realtek 8821AE Bluetooth devices */
366 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
368 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
369 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
370 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
371
4481c076
PP		 372 /* Silicon Wave based devices */
373 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
374
5e23b923
MH		 375 { } /* Terminating entry */
376};
377
9bfa35fe
MH		 378#define BTUSB_MAX_ISOC_FRAMES 10
379
5e23b923
MH		 380#define BTUSB_INTR_RUNNING 0
381#define BTUSB_BULK_RUNNING 1
9bfa35fe 382#define BTUSB_ISOC_RUNNING 2
7bee549e 383#define BTUSB_SUSPENDING 3
08b8b6c4 384#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 385#define BTUSB_BOOTLOADER 5
386#define BTUSB_DOWNLOADING 6
ce6bb929 387#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 388#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 389#define BTUSB_BOOTING 9
04b8c814 390#define BTUSB_RESET_RESUME 10
9d08f504 391#define BTUSB_DIAG_RUNNING 11
fd913ef7 392#define BTUSB_OOB_WAKE_ENABLED 12
5e23b923
MH		 393
394struct btusb_data {
395 struct hci_dev *hdev;
396 struct usb_device *udev;
5fbcd260 397 struct usb_interface *intf;
9bfa35fe 398 struct usb_interface *isoc;
9d08f504 399 struct usb_interface *diag;
5e23b923 400
5e23b923
MH		 401 unsigned long flags;
402
403 struct work_struct work;
7bee549e 404 struct work_struct waker;
5e23b923 405
803b5836 406 struct usb_anchor deferred;
5e23b923 407 struct usb_anchor tx_anchor;
803b5836
MH		 408 int tx_in_flight;
409 spinlock_t txlock;
410
5e23b923
MH		 411 struct usb_anchor intr_anchor;
412 struct usb_anchor bulk_anchor;
9bfa35fe 413 struct usb_anchor isoc_anchor;
9d08f504 414 struct usb_anchor diag_anchor;
803b5836
MH		 415 spinlock_t rxlock;
416
417 struct sk_buff *evt_skb;
418 struct sk_buff *acl_skb;
419 struct sk_buff *sco_skb;
5e23b923
MH		 420
421 struct usb_endpoint_descriptor *intr_ep;
422 struct usb_endpoint_descriptor *bulk_tx_ep;
423 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 424 struct usb_endpoint_descriptor *isoc_tx_ep;
425 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 426 struct usb_endpoint_descriptor *diag_tx_ep;
427 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 428
7a9d4020 429 __u8 cmdreq_type;
893ba544 430 __u8 cmdreq;
7a9d4020 431
43c2e57f 432 unsigned int sco_num;
9bfa35fe 433 int isoc_altsetting;
6a88adf2 434 int suspend_count;
2cbd3f5c 435
97307f51 436 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 437 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 438
439 int (*setup_on_usb)(struct hci_dev *hdev);
fd913ef7
RJ		 440
441 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
5e23b923
MH		 442};
443
803b5836
MH		 444static inline void btusb_free_frags(struct btusb_data *data)
445{
446 unsigned long flags;
447
448 spin_lock_irqsave(&data->rxlock, flags);
449
450 kfree_skb(data->evt_skb);
451 data->evt_skb = NULL;
452
453 kfree_skb(data->acl_skb);
454 data->acl_skb = NULL;
455
456 kfree_skb(data->sco_skb);
457 data->sco_skb = NULL;
458
459 spin_unlock_irqrestore(&data->rxlock, flags);
460}
461
1ffa4ad0
MH		 462static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
463{
803b5836
MH		 464 struct sk_buff *skb;
465 int err = 0;
466
467 spin_lock(&data->rxlock);
468 skb = data->evt_skb;
469
470 while (count) {
471 int len;
472
473 if (!skb) {
474 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
475 if (!skb) {
476 err = -ENOMEM;
477 break;
478 }
479
618e8bc2
MH		 480 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
481 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 482 }
483
618e8bc2 484 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 485 skb_put_data(skb, buffer, len);
803b5836
MH		 486
487 count -= len;
488 buffer += len;
618e8bc2 489 hci_skb_expect(skb) -= len;
803b5836
MH		 490
491 if (skb->len == HCI_EVENT_HDR_SIZE) {
492 /* Complete event header */
618e8bc2 493 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 494
618e8bc2 495 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 496 kfree_skb(skb);
497 skb = NULL;
498
499 err = -EILSEQ;
500 break;
501 }
502 }
503
618e8bc2 504 if (!hci_skb_expect(skb)) {
803b5836 505 /* Complete frame */
97307f51 506 data->recv_event(data->hdev, skb);
803b5836
MH		 507 skb = NULL;
508 }
509 }
510
511 data->evt_skb = skb;
512 spin_unlock(&data->rxlock);
513
514 return err;
1ffa4ad0
MH		 515}
516
517static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
518{
803b5836
MH		 519 struct sk_buff *skb;
520 int err = 0;
521
522 spin_lock(&data->rxlock);
523 skb = data->acl_skb;
524
525 while (count) {
526 int len;
527
528 if (!skb) {
529 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
530 if (!skb) {
531 err = -ENOMEM;
532 break;
533 }
534
618e8bc2
MH		 535 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
536 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 537 }
538
618e8bc2 539 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 540 skb_put_data(skb, buffer, len);
803b5836
MH		 541
542 count -= len;
543 buffer += len;
618e8bc2 544 hci_skb_expect(skb) -= len;
803b5836
MH		 545
546 if (skb->len == HCI_ACL_HDR_SIZE) {
547 __le16 dlen = hci_acl_hdr(skb)->dlen;
548
549 /* Complete ACL header */
618e8bc2 550 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 551
618e8bc2 552 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 553 kfree_skb(skb);
554 skb = NULL;
555
556 err = -EILSEQ;
557 break;
558 }
559 }
560
618e8bc2 561 if (!hci_skb_expect(skb)) {
803b5836
MH		 562 /* Complete frame */
563 hci_recv_frame(data->hdev, skb);
564 skb = NULL;
565 }
566 }
567
568 data->acl_skb = skb;
569 spin_unlock(&data->rxlock);
570
571 return err;
1ffa4ad0
MH		 572}
573
574static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
575{
803b5836
MH		 576 struct sk_buff *skb;
577 int err = 0;
578
579 spin_lock(&data->rxlock);
580 skb = data->sco_skb;
581
582 while (count) {
583 int len;
584
585 if (!skb) {
586 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
587 if (!skb) {
588 err = -ENOMEM;
589 break;
590 }
591
618e8bc2
MH		 592 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
593 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 594 }
595
618e8bc2 596 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 597 skb_put_data(skb, buffer, len);
803b5836
MH		 598
599 count -= len;
600 buffer += len;
618e8bc2 601 hci_skb_expect(skb) -= len;
803b5836
MH		 602
603 if (skb->len == HCI_SCO_HDR_SIZE) {
604 /* Complete SCO header */
618e8bc2 605 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 606
618e8bc2 607 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 608 kfree_skb(skb);
609 skb = NULL;
610
611 err = -EILSEQ;
612 break;
613 }
614 }
615
618e8bc2 616 if (!hci_skb_expect(skb)) {
803b5836
MH		 617 /* Complete frame */
618 hci_recv_frame(data->hdev, skb);
619 skb = NULL;
620 }
621 }
622
623 data->sco_skb = skb;
624 spin_unlock(&data->rxlock);
625
626 return err;
1ffa4ad0
MH		 627}
628
5e23b923
MH		 629static void btusb_intr_complete(struct urb *urb)
630{
631 struct hci_dev *hdev = urb->context;
155961e8 632 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 633 int err;
634
89e7533d
MH		 635 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
636 urb->actual_length);
5e23b923
MH		 637
638 if (!test_bit(HCI_RUNNING, &hdev->flags))
639 return;
640
641 if (urb->status == 0) {
9bfa35fe
MH		 642 hdev->stat.byte_rx += urb->actual_length;
643
1ffa4ad0
MH		 644 if (btusb_recv_intr(data, urb->transfer_buffer,
645 urb->actual_length) < 0) {
2064ee33 646 bt_dev_err(hdev, "corrupted event packet");
5e23b923
MH		 647 hdev->stat.err_rx++;
648 }
85560c4a
CC		 649 } else if (urb->status == -ENOENT) {
650 /* Avoid suspend failed when usb_kill_urb */
651 return;
5e23b923
MH		 652 }
653
654 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
655 return;
656
7bee549e 657 usb_mark_last_busy(data->udev);
5e23b923
MH		 658 usb_anchor_urb(urb, &data->intr_anchor);
659
660 err = usb_submit_urb(urb, GFP_ATOMIC);
661 if (err < 0) {
4935f1c1 662 /* -EPERM: urb is being killed;
d98422cb
DR		 663 * -ENODEV: device got disconnected
664 */
4935f1c1 665 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 666 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
667 urb, -err);
5e23b923
MH		 668 usb_unanchor_urb(urb);
669 }
670}
671
2eda66f4 672static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 673{
155961e8 674 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 675 struct urb *urb;
676 unsigned char *buf;
677 unsigned int pipe;
678 int err, size;
679
680 BT_DBG("%s", hdev->name);
681
9bfa35fe
MH		 682 if (!data->intr_ep)
683 return -ENODEV;
684
2eda66f4 685 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 686 if (!urb)
687 return -ENOMEM;
688
689 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
690
2eda66f4 691 buf = kmalloc(size, mem_flags);
5e23b923
MH		 692 if (!buf) {
693 usb_free_urb(urb);
694 return -ENOMEM;
695 }
696
697 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
698
699 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 700 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 701
702 urb->transfer_flags |= URB_FREE_BUFFER;
703
704 usb_anchor_urb(urb, &data->intr_anchor);
705
2eda66f4 706 err = usb_submit_urb(urb, mem_flags);
5e23b923 707 if (err < 0) {
d4b8d1c9 708 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 709 bt_dev_err(hdev, "urb %p submission failed (%d)",
710 urb, -err);
5e23b923 711 usb_unanchor_urb(urb);
5e23b923
MH		 712 }
713
714 usb_free_urb(urb);
715
716 return err;
717}
718
719static void btusb_bulk_complete(struct urb *urb)
720{
721 struct hci_dev *hdev = urb->context;
155961e8 722 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 723 int err;
724
89e7533d
MH		 725 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
726 urb->actual_length);
5e23b923
MH		 727
728 if (!test_bit(HCI_RUNNING, &hdev->flags))
729 return;
730
731 if (urb->status == 0) {
9bfa35fe
MH		 732 hdev->stat.byte_rx += urb->actual_length;
733
2cbd3f5c 734 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 735 urb->actual_length) < 0) {
2064ee33 736 bt_dev_err(hdev, "corrupted ACL packet");
5e23b923
MH		 737 hdev->stat.err_rx++;
738 }
85560c4a
CC		 739 } else if (urb->status == -ENOENT) {
740 /* Avoid suspend failed when usb_kill_urb */
741 return;
5e23b923
MH		 742 }
743
744 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
745 return;
746
747 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 748 usb_mark_last_busy(data->udev);
5e23b923
MH		 749
750 err = usb_submit_urb(urb, GFP_ATOMIC);
751 if (err < 0) {
4935f1c1 752 /* -EPERM: urb is being killed;
d98422cb
DR		 753 * -ENODEV: device got disconnected
754 */
4935f1c1 755 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 756 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
757 urb, -err);
5e23b923
MH		 758 usb_unanchor_urb(urb);
759 }
760}
761
2eda66f4 762static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 763{
155961e8 764 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 765 struct urb *urb;
766 unsigned char *buf;
767 unsigned int pipe;
290ba200 768 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 769
770 BT_DBG("%s", hdev->name);
771
9bfa35fe
MH		 772 if (!data->bulk_rx_ep)
773 return -ENODEV;
774
2eda66f4 775 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 776 if (!urb)
777 return -ENOMEM;
778
2eda66f4 779 buf = kmalloc(size, mem_flags);
5e23b923
MH		 780 if (!buf) {
781 usb_free_urb(urb);
782 return -ENOMEM;
783 }
784
785 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
786
89e7533d
MH		 787 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
788 btusb_bulk_complete, hdev);
5e23b923
MH		 789
790 urb->transfer_flags |= URB_FREE_BUFFER;
791
7bee549e 792 usb_mark_last_busy(data->udev);
5e23b923
MH		 793 usb_anchor_urb(urb, &data->bulk_anchor);
794
2eda66f4 795 err = usb_submit_urb(urb, mem_flags);
5e23b923 796 if (err < 0) {
d4b8d1c9 797 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 798 bt_dev_err(hdev, "urb %p submission failed (%d)",
799 urb, -err);
5e23b923 800 usb_unanchor_urb(urb);
5e23b923
MH		 801 }
802
803 usb_free_urb(urb);
804
805 return err;
806}
807
9bfa35fe
MH		 808static void btusb_isoc_complete(struct urb *urb)
809{
810 struct hci_dev *hdev = urb->context;
155961e8 811 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 812 int i, err;
813
89e7533d
MH		 814 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
815 urb->actual_length);
9bfa35fe
MH		 816
817 if (!test_bit(HCI_RUNNING, &hdev->flags))
818 return;
819
820 if (urb->status == 0) {
821 for (i = 0; i < urb->number_of_packets; i++) {
822 unsigned int offset = urb->iso_frame_desc[i].offset;
823 unsigned int length = urb->iso_frame_desc[i].actual_length;
824
825 if (urb->iso_frame_desc[i].status)
826 continue;
827
828 hdev->stat.byte_rx += length;
829
1ffa4ad0
MH		 830 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
831 length) < 0) {
2064ee33 832 bt_dev_err(hdev, "corrupted SCO packet");
9bfa35fe
MH		 833 hdev->stat.err_rx++;
834 }
835 }
85560c4a
CC		 836 } else if (urb->status == -ENOENT) {
837 /* Avoid suspend failed when usb_kill_urb */
838 return;
9bfa35fe
MH		 839 }
840
841 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
842 return;
843
844 usb_anchor_urb(urb, &data->isoc_anchor);
845
846 err = usb_submit_urb(urb, GFP_ATOMIC);
847 if (err < 0) {
4935f1c1 848 /* -EPERM: urb is being killed;
d98422cb
DR		 849 * -ENODEV: device got disconnected
850 */
4935f1c1 851 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 852 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
853 urb, -err);
9bfa35fe
MH		 854 usb_unanchor_urb(urb);
855 }
856}
857
42b16b3f 858static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 859{
860 int i, offset = 0;
861
862 BT_DBG("len %d mtu %d", len, mtu);
863
864 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
865 i++, offset += mtu, len -= mtu) {
866 urb->iso_frame_desc[i].offset = offset;
867 urb->iso_frame_desc[i].length = mtu;
868 }
869
870 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
871 urb->iso_frame_desc[i].offset = offset;
872 urb->iso_frame_desc[i].length = len;
873 i++;
874 }
875
876 urb->number_of_packets = i;
877}
878
2eda66f4 879static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 880{
155961e8 881 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 882 struct urb *urb;
883 unsigned char *buf;
884 unsigned int pipe;
885 int err, size;
886
887 BT_DBG("%s", hdev->name);
888
889 if (!data->isoc_rx_ep)
890 return -ENODEV;
891
2eda66f4 892 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 893 if (!urb)
894 return -ENOMEM;
895
896 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
897 BTUSB_MAX_ISOC_FRAMES;
898
2eda66f4 899 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 900 if (!buf) {
901 usb_free_urb(urb);
902 return -ENOMEM;
903 }
904
905 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
906
fa0fb93f 907 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 908 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 909
89e7533d 910 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 911
912 __fill_isoc_descriptor(urb, size,
89e7533d 913 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 914
915 usb_anchor_urb(urb, &data->isoc_anchor);
916
2eda66f4 917 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 918 if (err < 0) {
d4b8d1c9 919 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 920 bt_dev_err(hdev, "urb %p submission failed (%d)",
921 urb, -err);
9bfa35fe 922 usb_unanchor_urb(urb);
9bfa35fe
MH		 923 }
924
925 usb_free_urb(urb);
926
927 return err;
928}
929
9d08f504
MH		 930static void btusb_diag_complete(struct urb *urb)
931{
932 struct hci_dev *hdev = urb->context;
933 struct btusb_data *data = hci_get_drvdata(hdev);
934 int err;
935
936 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
937 urb->actual_length);
938
939 if (urb->status == 0) {
940 struct sk_buff *skb;
941
942 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
943 if (skb) {
59ae1d12
JB		 944 skb_put_data(skb, urb->transfer_buffer,
945 urb->actual_length);
9d08f504
MH		 946 hci_recv_diag(hdev, skb);
947 }
948 } else if (urb->status == -ENOENT) {
949 /* Avoid suspend failed when usb_kill_urb */
950 return;
951 }
952
953 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
954 return;
955
956 usb_anchor_urb(urb, &data->diag_anchor);
957 usb_mark_last_busy(data->udev);
958
959 err = usb_submit_urb(urb, GFP_ATOMIC);
960 if (err < 0) {
961 /* -EPERM: urb is being killed;
d98422cb
DR		 962 * -ENODEV: device got disconnected
963 */
9d08f504 964 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 965 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
966 urb, -err);
9d08f504
MH		 967 usb_unanchor_urb(urb);
968 }
969}
970
971static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
972{
973 struct btusb_data *data = hci_get_drvdata(hdev);
974 struct urb *urb;
975 unsigned char *buf;
976 unsigned int pipe;
977 int err, size = HCI_MAX_FRAME_SIZE;
978
979 BT_DBG("%s", hdev->name);
980
981 if (!data->diag_rx_ep)
982 return -ENODEV;
983
984 urb = usb_alloc_urb(0, mem_flags);
985 if (!urb)
986 return -ENOMEM;
987
988 buf = kmalloc(size, mem_flags);
989 if (!buf) {
990 usb_free_urb(urb);
991 return -ENOMEM;
992 }
993
994 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
995
996 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
997 btusb_diag_complete, hdev);
998
999 urb->transfer_flags |= URB_FREE_BUFFER;
1000
1001 usb_mark_last_busy(data->udev);
1002 usb_anchor_urb(urb, &data->diag_anchor);
1003
1004 err = usb_submit_urb(urb, mem_flags);
1005 if (err < 0) {
1006 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1007 bt_dev_err(hdev, "urb %p submission failed (%d)",
1008 urb, -err);
9d08f504
MH		 1009 usb_unanchor_urb(urb);
1010 }
1011
1012 usb_free_urb(urb);
1013
1014 return err;
1015}
1016
5e23b923 1017static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 1018{
1019 struct sk_buff *skb = urb->context;
89e7533d 1020 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 1021 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1022
89e7533d
MH		 1023 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1024 urb->actual_length);
7bee549e
ON		 1025
1026 if (!test_bit(HCI_RUNNING, &hdev->flags))
1027 goto done;
1028
1029 if (!urb->status)
1030 hdev->stat.byte_tx += urb->transfer_buffer_length;
1031 else
1032 hdev->stat.err_tx++;
1033
1034done:
1035 spin_lock(&data->txlock);
1036 data->tx_in_flight--;
1037 spin_unlock(&data->txlock);
1038
1039 kfree(urb->setup_packet);
1040
1041 kfree_skb(skb);
1042}
1043
1044static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1045{
1046 struct sk_buff *skb = urb->context;
89e7533d 1047 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1048
89e7533d
MH		 1049 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1050 urb->actual_length);
5e23b923
MH		 1051
1052 if (!test_bit(HCI_RUNNING, &hdev->flags))
1053 goto done;
1054
1055 if (!urb->status)
1056 hdev->stat.byte_tx += urb->transfer_buffer_length;
1057 else
1058 hdev->stat.err_tx++;
1059
1060done:
1061 kfree(urb->setup_packet);
1062
1063 kfree_skb(skb);
1064}
1065
1066static int btusb_open(struct hci_dev *hdev)
1067{
155961e8 1068 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1069 int err;
1070
1071 BT_DBG("%s", hdev->name);
1072
c7e163fe
EH		 1073 err = usb_autopm_get_interface(data->intf);
1074 if (err < 0)
1075 return err;
1076
ace31982
KBYT		 1077 /* Patching USB firmware files prior to starting any URBs of HCI path
1078 * It is more safe to use USB bulk channel for downloading USB patch
1079 */
1080 if (data->setup_on_usb) {
1081 err = data->setup_on_usb(hdev);
eb50042f 1082 if (err < 0)
ace31982
KBYT		 1083 return err;
1084 }
1085
7bee549e 1086 data->intf->needs_remote_wakeup = 1;
a0085f25
SG		 1087 /* device specific wakeup source enabled and required for USB
1088 * remote wakeup while host is suspended
1089 */
1090 device_wakeup_enable(&data->udev->dev);
7bee549e 1091
5e23b923 1092 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1093 goto done;
5e23b923 1094
2eda66f4 1095 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1096 if (err < 0)
1097 goto failed;
1098
1099 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1100 if (err < 0) {
43c2e57f
MH		 1101 usb_kill_anchored_urbs(&data->intr_anchor);
1102 goto failed;
5e23b923
MH		 1103 }
1104
43c2e57f
MH		 1105 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1106 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1107
9d08f504
MH		 1108 if (data->diag) {
1109 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1110 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1111 }
1112
7bee549e
ON		 1113done:
1114 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1115 return 0;
1116
1117failed:
1118 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1119 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1120 return err;
1121}
1122
7bee549e
ON		 1123static void btusb_stop_traffic(struct btusb_data *data)
1124{
1125 usb_kill_anchored_urbs(&data->intr_anchor);
1126 usb_kill_anchored_urbs(&data->bulk_anchor);
1127 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1128 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1129}
1130
5e23b923
MH		 1131static int btusb_close(struct hci_dev *hdev)
1132{
155961e8 1133 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1134 int err;
5e23b923
MH		 1135
1136 BT_DBG("%s", hdev->name);
1137
e8c3c3d2 1138 cancel_work_sync(&data->work);
404291ac 1139 cancel_work_sync(&data->waker);
e8c3c3d2 1140
9bfa35fe 1141 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1142 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1143 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1144 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1145
1146 btusb_stop_traffic(data);
803b5836
MH		 1147 btusb_free_frags(data);
1148
7bee549e
ON		 1149 err = usb_autopm_get_interface(data->intf);
1150 if (err < 0)
7b8e2c1d 1151 goto failed;
7bee549e
ON		 1152
1153 data->intf->needs_remote_wakeup = 0;
a0085f25 1154 device_wakeup_disable(&data->udev->dev);
7bee549e 1155 usb_autopm_put_interface(data->intf);
5e23b923 1156
7b8e2c1d
ON		 1157failed:
1158 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1159 return 0;
1160}
1161
1162static int btusb_flush(struct hci_dev *hdev)
1163{
155961e8 1164 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1165
1166 BT_DBG("%s", hdev->name);
1167
1168 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1169 btusb_free_frags(data);
5e23b923
MH		 1170
1171 return 0;
1172}
1173
047b2ec8 1174static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1175{
155961e8 1176 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1177 struct usb_ctrlrequest *dr;
1178 struct urb *urb;
1179 unsigned int pipe;
5e23b923 1180
047b2ec8
MH		 1181 urb = usb_alloc_urb(0, GFP_KERNEL);
1182 if (!urb)
1183 return ERR_PTR(-ENOMEM);
5e23b923 1184
047b2ec8
MH		 1185 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1186 if (!dr) {
1187 usb_free_urb(urb);
1188 return ERR_PTR(-ENOMEM);
1189 }
5e23b923 1190
047b2ec8 1191 dr->bRequestType = data->cmdreq_type;
893ba544 1192 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1193 dr->wIndex = 0;
1194 dr->wValue = 0;
1195 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1196
047b2ec8 1197 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1198
89e7533d 1199 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1200 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1201
89e7533d 1202 skb->dev = (void *)hdev;
5e23b923 1203
047b2ec8
MH		 1204 return urb;
1205}
5e23b923 1206
047b2ec8
MH		 1207static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1208{
1209 struct btusb_data *data = hci_get_drvdata(hdev);
1210 struct urb *urb;
1211 unsigned int pipe;
5e23b923 1212
047b2ec8
MH		 1213 if (!data->bulk_tx_ep)
1214 return ERR_PTR(-ENODEV);
9bfa35fe 1215
047b2ec8
MH		 1216 urb = usb_alloc_urb(0, GFP_KERNEL);
1217 if (!urb)
1218 return ERR_PTR(-ENOMEM);
5e23b923 1219
047b2ec8 1220 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1221
047b2ec8
MH		 1222 usb_fill_bulk_urb(urb, data->udev, pipe,
1223 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1224
89e7533d 1225 skb->dev = (void *)hdev;
5e23b923 1226
047b2ec8
MH		 1227 return urb;
1228}
9bfa35fe 1229
047b2ec8
MH		 1230static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1231{
1232 struct btusb_data *data = hci_get_drvdata(hdev);
1233 struct urb *urb;
1234 unsigned int pipe;
9bfa35fe 1235
047b2ec8
MH		 1236 if (!data->isoc_tx_ep)
1237 return ERR_PTR(-ENODEV);
9bfa35fe 1238
047b2ec8
MH		 1239 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1240 if (!urb)
1241 return ERR_PTR(-ENOMEM);
9bfa35fe 1242
047b2ec8 1243 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1244
047b2ec8
MH		 1245 usb_fill_int_urb(urb, data->udev, pipe,
1246 skb->data, skb->len, btusb_isoc_tx_complete,
1247 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1248
047b2ec8 1249 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1250
047b2ec8
MH		 1251 __fill_isoc_descriptor(urb, skb->len,
1252 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1253
89e7533d 1254 skb->dev = (void *)hdev;
047b2ec8
MH		 1255
1256 return urb;
1257}
1258
1259static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1260{
1261 struct btusb_data *data = hci_get_drvdata(hdev);
1262 int err;
7bee549e 1263
5e23b923
MH		 1264 usb_anchor_urb(urb, &data->tx_anchor);
1265
e9753eff 1266 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1267 if (err < 0) {
5a9b80e2 1268 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1269 bt_dev_err(hdev, "urb %p submission failed (%d)",
1270 urb, -err);
5e23b923
MH		 1271 kfree(urb->setup_packet);
1272 usb_unanchor_urb(urb);
7bee549e
ON		 1273 } else {
1274 usb_mark_last_busy(data->udev);
5e23b923
MH		 1275 }
1276
54a8a79c 1277 usb_free_urb(urb);
5e23b923
MH		 1278 return err;
1279}
1280
047b2ec8
MH		 1281static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1282{
1283 struct btusb_data *data = hci_get_drvdata(hdev);
1284 unsigned long flags;
1285 bool suspending;
1286
1287 spin_lock_irqsave(&data->txlock, flags);
1288 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1289 if (!suspending)
1290 data->tx_in_flight++;
1291 spin_unlock_irqrestore(&data->txlock, flags);
1292
1293 if (!suspending)
1294 return submit_tx_urb(hdev, urb);
1295
1296 usb_anchor_urb(urb, &data->deferred);
1297 schedule_work(&data->waker);
1298
1299 usb_free_urb(urb);
1300 return 0;
1301}
1302
1303static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1304{
1305 struct urb *urb;
1306
1307 BT_DBG("%s", hdev->name);
1308
618e8bc2 1309 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1310 case HCI_COMMAND_PKT:
1311 urb = alloc_ctrl_urb(hdev, skb);
1312 if (IS_ERR(urb))
1313 return PTR_ERR(urb);
1314
1315 hdev->stat.cmd_tx++;
1316 return submit_or_queue_tx_urb(hdev, urb);
1317
1318 case HCI_ACLDATA_PKT:
1319 urb = alloc_bulk_urb(hdev, skb);
1320 if (IS_ERR(urb))
1321 return PTR_ERR(urb);
1322
1323 hdev->stat.acl_tx++;
1324 return submit_or_queue_tx_urb(hdev, urb);
1325
1326 case HCI_SCODATA_PKT:
1327 if (hci_conn_num(hdev, SCO_LINK) < 1)
1328 return -ENODEV;
1329
1330 urb = alloc_isoc_urb(hdev, skb);
1331 if (IS_ERR(urb))
1332 return PTR_ERR(urb);
1333
1334 hdev->stat.sco_tx++;
1335 return submit_tx_urb(hdev, urb);
1336 }
1337
1338 return -EILSEQ;
1339}
1340
5e23b923
MH		 1341static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1342{
155961e8 1343 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1344
1345 BT_DBG("%s evt %d", hdev->name, evt);
1346
014f7bc7
MH		 1347 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1348 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1349 schedule_work(&data->work);
a780efa8 1350 }
5e23b923
MH		 1351}
1352
42b16b3f 1353static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1354{
155961e8 1355 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1356 struct usb_interface *intf = data->isoc;
1357 struct usb_endpoint_descriptor *ep_desc;
1358 int i, err;
1359
1360 if (!data->isoc)
1361 return -ENODEV;
1362
1363 err = usb_set_interface(data->udev, 1, altsetting);
1364 if (err < 0) {
2064ee33 1365 bt_dev_err(hdev, "setting interface failed (%d)", -err);
9bfa35fe
MH		 1366 return err;
1367 }
1368
1369 data->isoc_altsetting = altsetting;
1370
1371 data->isoc_tx_ep = NULL;
1372 data->isoc_rx_ep = NULL;
1373
1374 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1375 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1376
1377 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1378 data->isoc_tx_ep = ep_desc;
1379 continue;
1380 }
1381
1382 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1383 data->isoc_rx_ep = ep_desc;
1384 continue;
1385 }
1386 }
1387
1388 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2064ee33 1389 bt_dev_err(hdev, "invalid SCO descriptors");
9bfa35fe
MH		 1390 return -ENODEV;
1391 }
1392
1393 return 0;
1394}
1395
5e23b923
MH		 1396static void btusb_work(struct work_struct *work)
1397{
1398 struct btusb_data *data = container_of(work, struct btusb_data, work);
1399 struct hci_dev *hdev = data->hdev;
f4001d28 1400 int new_alts;
7bee549e 1401 int err;
5e23b923 1402
014f7bc7 1403 if (data->sco_num > 0) {
08b8b6c4 1404 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1405 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1406 if (err < 0) {
1407 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1408 usb_kill_anchored_urbs(&data->isoc_anchor);
1409 return;
1410 }
1411
08b8b6c4 1412 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1413 }
f4001d28
MA		 1414
1415 if (hdev->voice_setting & 0x0020) {
1416 static const int alts[3] = { 2, 4, 5 };
89e7533d 1417
014f7bc7 1418 new_alts = alts[data->sco_num - 1];
f4001d28 1419 } else {
014f7bc7 1420 new_alts = data->sco_num;
f4001d28
MA		 1421 }
1422
1423 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1424 unsigned long flags;
1425
9bfa35fe
MH		 1426 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1427 usb_kill_anchored_urbs(&data->isoc_anchor);
1428
8f9d02f4
KP		 1429 /* When isochronous alternate setting needs to be
1430 * changed, because SCO connection has been added
1431 * or removed, a packet fragment may be left in the
1432 * reassembling state. This could lead to wrongly
1433 * assembled fragments.
1434 *
1435 * Clear outstanding fragment when selecting a new
1436 * alternate setting.
1437 */
f6fc86f2 1438 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1439 kfree_skb(data->sco_skb);
1440 data->sco_skb = NULL;
f6fc86f2 1441 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1442
f4001d28 1443 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1444 return;
1445 }
1446
1447 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1448 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1449 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1450 else
2eda66f4 1451 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1452 }
1453 } else {
1454 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1455 usb_kill_anchored_urbs(&data->isoc_anchor);
1456
1457 __set_isoc_interface(hdev, 0);
08b8b6c4 1458 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1459 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1460 }
1461}
1462
7bee549e
ON		 1463static void btusb_waker(struct work_struct *work)
1464{
1465 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1466 int err;
1467
1468 err = usb_autopm_get_interface(data->intf);
1469 if (err < 0)
1470 return;
1471
1472 usb_autopm_put_interface(data->intf);
1473}
1474
9f8f962c
MH		 1475static int btusb_setup_bcm92035(struct hci_dev *hdev)
1476{
1477 struct sk_buff *skb;
1478 u8 val = 0x00;
1479
1480 BT_DBG("%s", hdev->name);
1481
1482 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1483 if (IS_ERR(skb))
2064ee33 1484 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
9f8f962c
MH		 1485 else
1486 kfree_skb(skb);
1487
1488 return 0;
1489}
1490
81cac64b
MH		 1491static int btusb_setup_csr(struct hci_dev *hdev)
1492{
1493 struct hci_rp_read_local_version *rp;
1494 struct sk_buff *skb;
81cac64b
MH		 1495
1496 BT_DBG("%s", hdev->name);
1497
7cd84d72
MH		 1498 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1499 HCI_INIT_TIMEOUT);
1500 if (IS_ERR(skb)) {
1501 int err = PTR_ERR(skb);
2064ee33 1502 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
7cd84d72
MH		 1503 return err;
1504 }
1505
1506 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33 1507 bt_dev_err(hdev, "CSR: Local version length mismatch");
7cd84d72
MH		 1508 kfree_skb(skb);
1509 return -EIO;
1510 }
81cac64b 1511
89e7533d 1512 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1513
6cafcd95
JH		 1514 /* Detect controllers which aren't real CSR ones. */
1515 if (le16_to_cpu(rp->manufacturer) != 10 ||
1516 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1517 /* Clear the reset quirk since this is not an actual
1518 * early Bluetooth 1.1 device from CSR.
1519 */
1520 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1521
9641d343
MH		 1522 /* These fake CSR controllers have all a broken
1523 * stored link key handling and so just disable it.
1524 */
1525 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1526 }
81cac64b
MH		 1527
1528 kfree_skb(skb);
1529
9641d343 1530 return 0;
81cac64b
MH		 1531}
1532
dffd30ee 1533static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1534 struct intel_version *ver)
dffd30ee
THJA		 1535{
1536 const struct firmware *fw;
1537 char fwname[64];
1538 int ret;
1539
1540 snprintf(fwname, sizeof(fwname),
1541 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1542 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1543 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1544 ver->fw_build_ww, ver->fw_build_yy);
1545
1546 ret = request_firmware(&fw, fwname, &hdev->dev);
1547 if (ret < 0) {
1548 if (ret == -EINVAL) {
1549 BT_ERR("%s Intel firmware file request failed (%d)",
1550 hdev->name, ret);
1551 return NULL;
1552 }
1553
1554 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1555 hdev->name, fwname, ret);
1556
1557 /* If the correct firmware patch file is not found, use the
1558 * default firmware patch file instead
1559 */
1560 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1561 ver->hw_platform, ver->hw_variant);
1562 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1563 BT_ERR("%s failed to open default Intel fw file: %s",
1564 hdev->name, fwname);
1565 return NULL;
1566 }
1567 }
1568
2064ee33 1569 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
dffd30ee
THJA		 1570
1571 return fw;
1572}
1573
1574static int btusb_setup_intel_patching(struct hci_dev *hdev,
1575 const struct firmware *fw,
1576 const u8 **fw_ptr, int *disable_patch)
1577{
1578 struct sk_buff *skb;
1579 struct hci_command_hdr *cmd;
1580 const u8 *cmd_param;
1581 struct hci_event_hdr *evt = NULL;
1582 const u8 *evt_param = NULL;
1583 int remain = fw->size - (*fw_ptr - fw->data);
1584
1585 /* The first byte indicates the types of the patch command or event.
1586 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1587 * in the current firmware buffer doesn't start with 0x01 or
1588 * the size of remain buffer is smaller than HCI command header,
1589 * the firmware file is corrupted and it should stop the patching
1590 * process.
1591 */
1592 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1593 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1594 return -EINVAL;
1595 }
1596 (*fw_ptr)++;
1597 remain--;
1598
1599 cmd = (struct hci_command_hdr *)(*fw_ptr);
1600 *fw_ptr += sizeof(*cmd);
1601 remain -= sizeof(*cmd);
1602
1603 /* Ensure that the remain firmware data is long enough than the length
1604 * of command parameter. If not, the firmware file is corrupted.
1605 */
1606 if (remain < cmd->plen) {
1607 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1608 return -EFAULT;
1609 }
1610
1611 /* If there is a command that loads a patch in the firmware
1612 * file, then enable the patch upon success, otherwise just
1613 * disable the manufacturer mode, for example patch activation
1614 * is not required when the default firmware patch file is used
1615 * because there are no patch data to load.
1616 */
1617 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1618 *disable_patch = 0;
1619
1620 cmd_param = *fw_ptr;
1621 *fw_ptr += cmd->plen;
1622 remain -= cmd->plen;
1623
1624 /* This reads the expected events when the above command is sent to the
1625 * device. Some vendor commands expects more than one events, for
1626 * example command status event followed by vendor specific event.
1627 * For this case, it only keeps the last expected event. so the command
1628 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1629 * last expected event.
1630 */
1631 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1632 (*fw_ptr)++;
1633 remain--;
1634
1635 evt = (struct hci_event_hdr *)(*fw_ptr);
1636 *fw_ptr += sizeof(*evt);
1637 remain -= sizeof(*evt);
1638
1639 if (remain < evt->plen) {
1640 BT_ERR("%s Intel fw corrupted: invalid evt len",
1641 hdev->name);
1642 return -EFAULT;
1643 }
1644
1645 evt_param = *fw_ptr;
1646 *fw_ptr += evt->plen;
1647 remain -= evt->plen;
1648 }
1649
1650 /* Every HCI commands in the firmware file has its correspond event.
1651 * If event is not found or remain is smaller than zero, the firmware
1652 * file is corrupted.
1653 */
1654 if (!evt || !evt_param || remain < 0) {
1655 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1656 return -EFAULT;
1657 }
1658
1659 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1660 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1661 if (IS_ERR(skb)) {
1662 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1663 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1664 return PTR_ERR(skb);
dffd30ee
THJA		 1665 }
1666
1667 /* It ensures that the returned event matches the event data read from
1668 * the firmware file. At fist, it checks the length and then
1669 * the contents of the event.
1670 */
1671 if (skb->len != evt->plen) {
1672 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1673 le16_to_cpu(cmd->opcode));
1674 kfree_skb(skb);
1675 return -EFAULT;
1676 }
1677
1678 if (memcmp(skb->data, evt_param, evt->plen)) {
1679 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1680 hdev->name, le16_to_cpu(cmd->opcode));
1681 kfree_skb(skb);
1682 return -EFAULT;
1683 }
1684 kfree_skb(skb);
1685
1686 return 0;
1687}
1688
1689static int btusb_setup_intel(struct hci_dev *hdev)
1690{
1691 struct sk_buff *skb;
1692 const struct firmware *fw;
1693 const u8 *fw_ptr;
28dc4b92 1694 int disable_patch, err;
6c483de1 1695 struct intel_version ver;
dffd30ee 1696
dffd30ee
THJA		 1697 BT_DBG("%s", hdev->name);
1698
1699 /* The controller has a bug with the first HCI command sent to it
1700 * returning number of completed commands as zero. This would stall the
1701 * command processing in the Bluetooth core.
1702 *
1703 * As a workaround, send HCI Reset command first which will reset the
1704 * number of completed commands and allow normal command processing
1705 * from now on.
1706 */
1707 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1708 if (IS_ERR(skb)) {
1709 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1710 hdev->name, PTR_ERR(skb));
d9c78e97 1711 return PTR_ERR(skb);
dffd30ee
THJA		 1712 }
1713 kfree_skb(skb);
1714
1715 /* Read Intel specific controller version first to allow selection of
1716 * which firmware file to load.
1717 *
1718 * The returned information are hardware variant and revision plus
1719 * firmware variant, revision and build number.
1720 */
6c483de1
LP		 1721 err = btintel_read_version(hdev, &ver);
1722 if (err)
1723 return err;
dffd30ee 1724
2064ee33
MH		 1725 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1726 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1727 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1728 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1729
1730 /* fw_patch_num indicates the version of patch the device currently
1731 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1732 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1733 */
6c483de1 1734 if (ver.fw_patch_num) {
2064ee33
MH		 1735 bt_dev_info(hdev, "Intel device is already patched. "
1736 "patch num: %02x", ver.fw_patch_num);
213445b2 1737 goto complete;
dffd30ee
THJA		 1738 }
1739
1740 /* Opens the firmware patch file based on the firmware version read
1741 * from the controller. If it fails to open the matching firmware
1742 * patch file, it tries to open the default firmware patch file.
1743 * If no patch file is found, allow the device to operate without
1744 * a patch.
1745 */
6c483de1
LP		 1746 fw = btusb_setup_intel_get_fw(hdev, &ver);
1747 if (!fw)
213445b2 1748 goto complete;
dffd30ee
THJA		 1749 fw_ptr = fw->data;
1750
28dc4b92 1751 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1752 * Only while this mode is enabled, the driver can download the
1753 * firmware patch data and configuration parameters.
1754 */
28dc4b92
LP		 1755 err = btintel_enter_mfg(hdev);
1756 if (err) {
dffd30ee 1757 release_firmware(fw);
28dc4b92 1758 return err;
dffd30ee
THJA		 1759 }
1760
dffd30ee
THJA		 1761 disable_patch = 1;
1762
1763 /* The firmware data file consists of list of Intel specific HCI
1764 * commands and its expected events. The first byte indicates the
1765 * type of the message, either HCI command or HCI event.
1766 *
1767 * It reads the command and its expected event from the firmware file,
1768 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1769 * the returned event is compared with the event read from the firmware
1770 * file and it will continue until all the messages are downloaded to
1771 * the controller.
1772 *
1773 * Once the firmware patching is completed successfully,
1774 * the manufacturer mode is disabled with reset and activating the
1775 * downloaded patch.
1776 *
1777 * If the firmware patching fails, the manufacturer mode is
1778 * disabled with reset and deactivating the patch.
1779 *
1780 * If the default patch file is used, no reset is done when disabling
1781 * the manufacturer.
1782 */
1783 while (fw->size > fw_ptr - fw->data) {
1784 int ret;
1785
1786 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1787 &disable_patch);
1788 if (ret < 0)
1789 goto exit_mfg_deactivate;
1790 }
1791
1792 release_firmware(fw);
1793
1794 if (disable_patch)
1795 goto exit_mfg_disable;
1796
1797 /* Patching completed successfully and disable the manufacturer mode
1798 * with reset and activate the downloaded firmware patches.
1799 */
28dc4b92
LP		 1800 err = btintel_exit_mfg(hdev, true, true);
1801 if (err)
1802 return err;
dffd30ee 1803
2064ee33 1804 bt_dev_info(hdev, "Intel firmware patch completed and activated");
dffd30ee 1805
213445b2 1806 goto complete;
dffd30ee
THJA		 1807
1808exit_mfg_disable:
1809 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1810 err = btintel_exit_mfg(hdev, false, false);
1811 if (err)
1812 return err;
dffd30ee 1813
2064ee33 1814 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1815
213445b2 1816 goto complete;
dffd30ee
THJA		 1817
1818exit_mfg_deactivate:
1819 release_firmware(fw);
1820
1821 /* Patching failed. Disable the manufacturer mode with reset and
1822 * deactivate the downloaded firmware patches.
1823 */
28dc4b92
LP		 1824 err = btintel_exit_mfg(hdev, true, false);
1825 if (err)
1826 return err;
dffd30ee 1827
2064ee33 1828 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1829
213445b2
MH		 1830complete:
1831 /* Set the event mask for Intel specific vendor events. This enables
1832 * a few extra events that are useful during general operation.
1833 */
1834 btintel_set_event_mask_mfg(hdev, false);
1835
4185a0f5 1836 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1837 return 0;
1838}
1839
cda0dd78
MH		 1840static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1841{
1842 struct sk_buff *skb;
1843 struct hci_event_hdr *hdr;
1844 struct hci_ev_cmd_complete *evt;
1845
1846 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1847 if (!skb)
1848 return -ENOMEM;
1849
4df864c1 1850 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1851 hdr->evt = HCI_EV_CMD_COMPLETE;
1852 hdr->plen = sizeof(*evt) + 1;
1853
4df864c1 1854 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1855 evt->ncmd = 0x01;
1856 evt->opcode = cpu_to_le16(opcode);
1857
634fef61 1858 skb_put_u8(skb, 0x00);
cda0dd78 1859
618e8bc2 1860 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1861
1862 return hci_recv_frame(hdev, skb);
1863}
1864
1865static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1866 int count)
1867{
1868 /* When the device is in bootloader mode, then it can send
1869 * events via the bulk endpoint. These events are treated the
1870 * same way as the ones received from the interrupt endpoint.
1871 */
1872 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1873 return btusb_recv_intr(data, buffer, count);
1874
1875 return btusb_recv_bulk(data, buffer, count);
1876}
1877
ccd6da2a
MH		 1878static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1879 unsigned int len)
1880{
1881 const struct intel_bootup *evt = ptr;
1882
1883 if (len != sizeof(*evt))
1884 return;
1885
1886 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1887 smp_mb__after_atomic();
1888 wake_up_bit(&data->flags, BTUSB_BOOTING);
1889 }
1890}
1891
1892static void btusb_intel_secure_send_result(struct btusb_data *data,
1893 const void *ptr, unsigned int len)
1894{
1895 const struct intel_secure_send_result *evt = ptr;
1896
1897 if (len != sizeof(*evt))
1898 return;
1899
1900 if (evt->result)
1901 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1902
1903 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1904 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1905 smp_mb__after_atomic();
1906 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1907 }
1908}
1909
cda0dd78
MH		 1910static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1911{
1912 struct btusb_data *data = hci_get_drvdata(hdev);
1913
1914 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1915 struct hci_event_hdr *hdr = (void *)skb->data;
1916
ccd6da2a
MH		 1917 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1918 hdr->plen > 0) {
1919 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1920 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1921
1922 switch (skb->data[2]) {
1923 case 0x02:
1924 /* When switching to the operational firmware
1925 * the device sends a vendor specific event
1926 * indicating that the bootup completed.
1927 */
1928 btusb_intel_bootup(data, ptr, len);
1929 break;
1930 case 0x06:
1931 /* When the firmware loading completes the
1932 * device sends out a vendor specific event
1933 * indicating the result of the firmware
1934 * loading.
1935 */
1936 btusb_intel_secure_send_result(data, ptr, len);
1937 break;
fad70972 1938 }
cda0dd78
MH		 1939 }
1940 }
1941
1942 return hci_recv_frame(hdev, skb);
1943}
1944
1945static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1946{
1947 struct btusb_data *data = hci_get_drvdata(hdev);
1948 struct urb *urb;
1949
1950 BT_DBG("%s", hdev->name);
1951
618e8bc2 1952 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 1953 case HCI_COMMAND_PKT:
1954 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1955 struct hci_command_hdr *cmd = (void *)skb->data;
1956 __u16 opcode = le16_to_cpu(cmd->opcode);
1957
1958 /* When in bootloader mode and the command 0xfc09
1959 * is received, it needs to be send down the
1960 * bulk endpoint. So allocate a bulk URB instead.
1961 */
1962 if (opcode == 0xfc09)
1963 urb = alloc_bulk_urb(hdev, skb);
1964 else
1965 urb = alloc_ctrl_urb(hdev, skb);
1966
1967 /* When the 0xfc01 command is issued to boot into
1968 * the operational firmware, it will actually not
1969 * send a command complete event. To keep the flow
1970 * control working inject that event here.
1971 */
1972 if (opcode == 0xfc01)
1973 inject_cmd_complete(hdev, opcode);
1974 } else {
1975 urb = alloc_ctrl_urb(hdev, skb);
1976 }
1977 if (IS_ERR(urb))
1978 return PTR_ERR(urb);
1979
1980 hdev->stat.cmd_tx++;
1981 return submit_or_queue_tx_urb(hdev, urb);
1982
1983 case HCI_ACLDATA_PKT:
1984 urb = alloc_bulk_urb(hdev, skb);
1985 if (IS_ERR(urb))
1986 return PTR_ERR(urb);
1987
1988 hdev->stat.acl_tx++;
1989 return submit_or_queue_tx_urb(hdev, urb);
1990
1991 case HCI_SCODATA_PKT:
1992 if (hci_conn_num(hdev, SCO_LINK) < 1)
1993 return -ENODEV;
1994
1995 urb = alloc_isoc_urb(hdev, skb);
1996 if (IS_ERR(urb))
1997 return PTR_ERR(urb);
1998
1999 hdev->stat.sco_tx++;
2000 return submit_tx_urb(hdev, urb);
2001 }
2002
2003 return -EILSEQ;
2004}
2005
cda0dd78
MH		 2006static int btusb_setup_intel_new(struct hci_dev *hdev)
2007{
2008 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2009 0x00, 0x08, 0x04, 0x00 };
2010 struct btusb_data *data = hci_get_drvdata(hdev);
2011 struct sk_buff *skb;
6c483de1 2012 struct intel_version ver;
cda0dd78
MH		 2013 struct intel_boot_params *params;
2014 const struct firmware *fw;
2015 const u8 *fw_ptr;
e66890a9 2016 u32 frag_len;
cda0dd78
MH		 2017 char fwname[64];
2018 ktime_t calltime, delta, rettime;
2019 unsigned long long duration;
2020 int err;
2021
2022 BT_DBG("%s", hdev->name);
2023
2024 calltime = ktime_get();
2025
2026 /* Read the Intel version information to determine if the device
2027 * is in bootloader mode or if it already has operational firmware
2028 * loaded.
2029 */
6c483de1
LP		 2030 err = btintel_read_version(hdev, &ver);
2031 if (err)
2032 return err;
cda0dd78
MH		 2033
2034 /* The hardware platform number has a fixed value of 0x37 and
2035 * for now only accept this single value.
2036 */
6c483de1 2037 if (ver.hw_platform != 0x37) {
cda0dd78 2038 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
6c483de1 2039 hdev->name, ver.hw_platform);
cda0dd78
MH		 2040 return -EINVAL;
2041 }
2042
9268834b
THJA		 2043 /* Check for supported iBT hardware variants of this firmware
2044 * loading method.
a0af53b5
THJA		 2045 *
2046 * This check has been put in place to ensure correct forward
2047 * compatibility options when newer hardware variants come along.
cda0dd78 2048 */
9268834b
THJA		 2049 switch (ver.hw_variant) {
2050 case 0x0b: /* SfP */
2051 case 0x0c: /* WsP */
86a6129a 2052 case 0x11: /* JfP */
de766142 2053 case 0x12: /* ThP */
9268834b
THJA		 2054 break;
2055 default:
cda0dd78 2056 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
6c483de1 2057 hdev->name, ver.hw_variant);
cda0dd78
MH		 2058 return -EINVAL;
2059 }
2060
6c483de1 2061 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2062
2063 /* The firmware variant determines if the device is in bootloader
2064 * mode or is running operational firmware. The value 0x06 identifies
2065 * the bootloader and the value 0x23 identifies the operational
2066 * firmware.
2067 *
2068 * When the operational firmware is already present, then only
2069 * the check for valid Bluetooth device address is needed. This
2070 * determines if the device will be added as configured or
2071 * unconfigured controller.
2072 *
2073 * It is not possible to use the Secure Boot Parameters in this
2074 * case since that command is only available in bootloader mode.
2075 */
6c483de1 2076 if (ver.fw_variant == 0x23) {
cda0dd78 2077 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2078 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2079 return 0;
2080 }
2081
2082 /* If the device is not in bootloader mode, then the only possible
2083 * choice is to return an error and abort the device initialization.
2084 */
6c483de1 2085 if (ver.fw_variant != 0x06) {
cda0dd78 2086 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
6c483de1 2087 hdev->name, ver.fw_variant);
cda0dd78
MH		 2088 return -ENODEV;
2089 }
2090
cda0dd78
MH		 2091 /* Read the secure boot parameters to identify the operating
2092 * details of the bootloader.
2093 */
2094 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2095 if (IS_ERR(skb)) {
2096 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2097 hdev->name, PTR_ERR(skb));
2098 return PTR_ERR(skb);
2099 }
2100
2101 if (skb->len != sizeof(*params)) {
2102 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2103 kfree_skb(skb);
2104 return -EILSEQ;
2105 }
2106
2107 params = (struct intel_boot_params *)skb->data;
cda0dd78 2108
2064ee33
MH		 2109 bt_dev_info(hdev, "Device revision is %u",
2110 le16_to_cpu(params->dev_revid));
cda0dd78 2111
2064ee33
MH		 2112 bt_dev_info(hdev, "Secure boot is %s",
2113 params->secure_boot ? "enabled" : "disabled");
cda0dd78 2114
2064ee33
MH		 2115 bt_dev_info(hdev, "OTP lock is %s",
2116 params->otp_lock ? "enabled" : "disabled");
2220994e 2117
2064ee33
MH		 2118 bt_dev_info(hdev, "API lock is %s",
2119 params->api_lock ? "enabled" : "disabled");
2220994e 2120
2064ee33
MH		 2121 bt_dev_info(hdev, "Debug lock is %s",
2122 params->debug_lock ? "enabled" : "disabled");
2220994e 2123
2064ee33
MH		 2124 bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
2125 params->min_fw_build_nn, params->min_fw_build_cw,
2126 2000 + params->min_fw_build_yy);
cda0dd78
MH		 2127
2128 /* It is required that every single firmware fragment is acknowledged
2129 * with a command complete event. If the boot parameters indicate
2130 * that this bootloader does not send them, then abort the setup.
2131 */
2132 if (params->limited_cce != 0x00) {
2133 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2134 hdev->name, params->limited_cce);
2135 kfree_skb(skb);
2136 return -EINVAL;
2137 }
2138
2139 /* If the OTP has no valid Bluetooth device address, then there will
2140 * also be no valid address for the operational firmware.
2141 */
2142 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2064ee33 2143 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2144 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2145 }
2146
2147 /* With this Intel bootloader only the hardware variant and device
2148 * revision information are used to select the right firmware.
2149 *
230b04ac
THJA		 2150 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2151 *
2152 * Currently the supported hardware variants are:
2153 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2154 * 12 (0x0c) for iBT3.5 (WsP)
86a6129a
THJA		 2155 * 17 (0x11) for iBT3.5 (JfP)
2156 * 18 (0x12) for iBT3.5 (ThP)
cda0dd78 2157 */
230b04ac
THJA		 2158 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2159 le16_to_cpu(ver.hw_variant),
cda0dd78
MH		 2160 le16_to_cpu(params->dev_revid));
2161
2162 err = request_firmware(&fw, fwname, &hdev->dev);
2163 if (err < 0) {
2164 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2165 hdev->name, err);
2166 kfree_skb(skb);
2167 return err;
2168 }
2169
2064ee33 2170 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2171
52cc9168
THJA		 2172 /* Save the DDC file name for later use to apply once the firmware
2173 * downloading is done.
2174 */
230b04ac
THJA		 2175 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2176 le16_to_cpu(ver.hw_variant),
52cc9168
THJA		 2177 le16_to_cpu(params->dev_revid));
2178
cda0dd78
MH		 2179 kfree_skb(skb);
2180
2181 if (fw->size < 644) {
2182 BT_ERR("%s: Invalid size of firmware file (%zu)",
2183 hdev->name, fw->size);
2184 err = -EBADF;
2185 goto done;
2186 }
2187
2188 set_bit(BTUSB_DOWNLOADING, &data->flags);
2189
2190 /* Start the firmware download transaction with the Init fragment
2191 * represented by the 128 bytes of CSS header.
2192 */
09df123d 2193 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2194 if (err < 0) {
2195 BT_ERR("%s: Failed to send firmware header (%d)",
2196 hdev->name, err);
2197 goto done;
2198 }
2199
2200 /* Send the 256 bytes of public key information from the firmware
2201 * as the PKey fragment.
2202 */
09df123d 2203 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2204 if (err < 0) {
2205 BT_ERR("%s: Failed to send firmware public key (%d)",
2206 hdev->name, err);
2207 goto done;
2208 }
2209
2210 /* Send the 256 bytes of signature information from the firmware
2211 * as the Sign fragment.
2212 */
09df123d 2213 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2214 if (err < 0) {
2215 BT_ERR("%s: Failed to send firmware signature (%d)",
2216 hdev->name, err);
2217 goto done;
2218 }
2219
2220 fw_ptr = fw->data + 644;
e66890a9 2221 frag_len = 0;
cda0dd78
MH		 2222
2223 while (fw_ptr - fw->data < fw->size) {
e66890a9 2224 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2225
e66890a9 2226 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2227
5075edae 2228 /* The parameter length of the secure send command requires
e66890a9
MH		 2229 * a 4 byte alignment. It happens so that the firmware file
2230 * contains proper Intel_NOP commands to align the fragments
2231 * as needed.
2232 *
2233 * Send set of commands with 4 byte alignment from the
2234 * firmware data buffer as a single Data fragement.
cda0dd78 2235 */
e66890a9 2236 if (!(frag_len % 4)) {
09df123d 2237 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2238 if (err < 0) {
2239 BT_ERR("%s: Failed to send firmware data (%d)",
2240 hdev->name, err);
2241 goto done;
2242 }
cda0dd78 2243
e66890a9
MH		 2244 fw_ptr += frag_len;
2245 frag_len = 0;
2246 }
cda0dd78
MH		 2247 }
2248
ce6bb929
MH		 2249 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2250
2064ee33 2251 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2252
cda0dd78
MH		 2253 /* Before switching the device into operational mode and with that
2254 * booting the loaded firmware, wait for the bootloader notification
2255 * that all fragments have been successfully received.
2256 *
a087a98e
JH		 2257 * When the event processing receives the notification, then the
2258 * BTUSB_DOWNLOADING flag will be cleared.
2259 *
2260 * The firmware loading should not take longer than 5 seconds
2261 * and thus just timeout if that happens and fail the setup
2262 * of this device.
cda0dd78 2263 */
129a7693
JH		 2264 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2265 TASK_INTERRUPTIBLE,
2266 msecs_to_jiffies(5000));
f0a70a04 2267 if (err == -EINTR) {
a087a98e 2268 BT_ERR("%s: Firmware loading interrupted", hdev->name);
a087a98e
JH		 2269 goto done;
2270 }
cda0dd78 2271
a087a98e
JH		 2272 if (err) {
2273 BT_ERR("%s: Firmware loading timeout", hdev->name);
2274 err = -ETIMEDOUT;
2275 goto done;
cda0dd78
MH		 2276 }
2277
2278 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2279 BT_ERR("%s: Firmware loading failed", hdev->name);
2280 err = -ENOEXEC;
2281 goto done;
2282 }
2283
2284 rettime = ktime_get();
2285 delta = ktime_sub(rettime, calltime);
2286 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2287
2064ee33 2288 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2289
2290done:
2291 release_firmware(fw);
2292
2293 if (err < 0)
2294 return err;
2295
2296 calltime = ktime_get();
2297
2298 set_bit(BTUSB_BOOTING, &data->flags);
2299
2300 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2301 HCI_INIT_TIMEOUT);
2302 if (IS_ERR(skb))
2303 return PTR_ERR(skb);
2304
2305 kfree_skb(skb);
2306
2307 /* The bootloader will not indicate when the device is ready. This
2308 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2309 *
2310 * Booting into operational firmware should not take longer than
2311 * 1 second. However if that happens, then just fail the setup
2312 * since something went wrong.
cda0dd78 2313 */
2064ee33 2314 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2315
129a7693
JH		 2316 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2317 TASK_INTERRUPTIBLE,
2318 msecs_to_jiffies(1000));
cda0dd78 2319
f0a70a04 2320 if (err == -EINTR) {
fad70972
JH		 2321 BT_ERR("%s: Device boot interrupted", hdev->name);
2322 return -EINTR;
2323 }
cda0dd78 2324
fad70972
JH		 2325 if (err) {
2326 BT_ERR("%s: Device boot timeout", hdev->name);
2327 return -ETIMEDOUT;
cda0dd78
MH		 2328 }
2329
2330 rettime = ktime_get();
2331 delta = ktime_sub(rettime, calltime);
2332 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2333
2064ee33 2334 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2335
2336 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2337
52cc9168
THJA		 2338 /* Once the device is running in operational mode, it needs to apply
2339 * the device configuration (DDC) parameters.
2340 *
2341 * The device can work without DDC parameters, so even if it fails
2342 * to load the file, no need to fail the setup.
2343 */
e924d3d6 2344 btintel_load_ddc_config(hdev, fwname);
52cc9168 2345
213445b2
MH		 2346 /* Set the event mask for Intel specific vendor events. This enables
2347 * a few extra events that are useful during general operation. It
2348 * does not enable any debugging related events.
2349 *
2350 * The device will function correctly without these events enabled
2351 * and thus no need to fail the setup.
2352 */
2353 btintel_set_event_mask(hdev, false);
2354
cda0dd78
MH		 2355 return 0;
2356}
2357
bfbd45e9
THJA		 2358static int btusb_shutdown_intel(struct hci_dev *hdev)
2359{
2360 struct sk_buff *skb;
2361 long ret;
2362
2363 /* Some platforms have an issue with BT LED when the interface is
2364 * down or BT radio is turned off, which takes 5 seconds to BT LED
2365 * goes off. This command turns off the BT LED immediately.
2366 */
2367 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2368 if (IS_ERR(skb)) {
2369 ret = PTR_ERR(skb);
2370 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2371 hdev->name, ret);
2372 return ret;
2373 }
2374 kfree_skb(skb);
2375
2376 return 0;
2377}
2378
a4ccc9e3
RJ		 2379#ifdef CONFIG_PM
2380/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2381static int marvell_config_oob_wake(struct hci_dev *hdev)
2382{
2383 struct sk_buff *skb;
2384 struct btusb_data *data = hci_get_drvdata(hdev);
2385 struct device *dev = &data->udev->dev;
2386 u16 pin, gap, opcode;
2387 int ret;
2388 u8 cmd[5];
2389
2390 /* Move on if no wakeup pin specified */
2391 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2392 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2393 return 0;
2394
2395 /* Vendor specific command to configure a GPIO as wake-up pin */
2396 opcode = hci_opcode_pack(0x3F, 0x59);
2397 cmd[0] = opcode & 0xFF;
2398 cmd[1] = opcode >> 8;
2399 cmd[2] = 2; /* length of parameters that follow */
2400 cmd[3] = pin;
2401 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2402
2403 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2404 if (!skb) {
2405 bt_dev_err(hdev, "%s: No memory\n", __func__);
2406 return -ENOMEM;
2407 }
2408
59ae1d12 2409 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 2410 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2411
2412 ret = btusb_send_frame(hdev, skb);
2413 if (ret) {
2414 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2415 kfree_skb(skb);
2416 return ret;
2417 }
2418
2419 return 0;
2420}
2421#endif
2422
ae8df494
AK		 2423static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2424 const bdaddr_t *bdaddr)
2425{
2426 struct sk_buff *skb;
2427 u8 buf[8];
2428 long ret;
2429
2430 buf[0] = 0xfe;
2431 buf[1] = sizeof(bdaddr_t);
2432 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2433
2434 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2435 if (IS_ERR(skb)) {
2436 ret = PTR_ERR(skb);
2064ee33
MH		 2437 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2438 ret);
ae8df494
AK		 2439 return ret;
2440 }
2441 kfree_skb(skb);
2442
2443 return 0;
2444}
2445
5859223e
TK		 2446static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2447 const bdaddr_t *bdaddr)
2448{
2449 struct sk_buff *skb;
2450 u8 buf[10];
2451 long ret;
2452
2453 buf[0] = 0x01;
2454 buf[1] = 0x01;
2455 buf[2] = 0x00;
2456 buf[3] = sizeof(bdaddr_t);
2457 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2458
2459 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2460 if (IS_ERR(skb)) {
2461 ret = PTR_ERR(skb);
2064ee33 2462 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 2463 return ret;
2464 }
2465 kfree_skb(skb);
2466
2467 return 0;
2468}
2469
3267c884
KBYT		 2470#define QCA_DFU_PACKET_LEN 4096
2471
2472#define QCA_GET_TARGET_VERSION 0x09
2473#define QCA_CHECK_STATUS 0x05
2474#define QCA_DFU_DOWNLOAD 0x01
2475
2476#define QCA_SYSCFG_UPDATED 0x40
2477#define QCA_PATCH_UPDATED 0x80
2478#define QCA_DFU_TIMEOUT 3000
2479
2480struct qca_version {
2481 __le32 rom_version;
2482 __le32 patch_version;
2483 __le32 ram_version;
2484 __le32 ref_clock;
2485 __u8 reserved[4];
2486} __packed;
2487
2488struct qca_rampatch_version {
2489 __le16 rom_version;
2490 __le16 patch_version;
2491} __packed;
2492
2493struct qca_device_info {
bf906b3d
KBYT		 2494 u32 rom_version;
2495 u8 rampatch_hdr; /* length of header in rampatch */
2496 u8 nvm_hdr; /* length of header in NVM */
2497 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2498};
2499
2500static const struct qca_device_info qca_devices_table[] = {
2501 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2502 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2503 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2504 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2505 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2506 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2507};
2508
2509static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2510 void *data, u16 size)
2511{
2512 struct btusb_data *btdata = hci_get_drvdata(hdev);
2513 struct usb_device *udev = btdata->udev;
2514 int pipe, err;
2515 u8 *buf;
2516
2517 buf = kmalloc(size, GFP_KERNEL);
2518 if (!buf)
2519 return -ENOMEM;
2520
2521 /* Found some of USB hosts have IOT issues with ours so that we should
2522 * not wait until HCI layer is ready.
2523 */
2524 pipe = usb_rcvctrlpipe(udev, 0);
2525 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2526 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2527 if (err < 0) {
2064ee33 2528 bt_dev_err(hdev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 2529 goto done;
2530 }
2531
2532 memcpy(data, buf, size);
2533
2534done:
2535 kfree(buf);
2536
2537 return err;
2538}
2539
2540static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2541 const struct firmware *firmware,
2542 size_t hdr_size)
2543{
2544 struct btusb_data *btdata = hci_get_drvdata(hdev);
2545 struct usb_device *udev = btdata->udev;
2546 size_t count, size, sent = 0;
2547 int pipe, len, err;
2548 u8 *buf;
2549
2550 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2551 if (!buf)
2552 return -ENOMEM;
2553
2554 count = firmware->size;
2555
2556 size = min_t(size_t, count, hdr_size);
2557 memcpy(buf, firmware->data, size);
2558
2559 /* USB patches should go down to controller through USB path
2560 * because binary format fits to go down through USB channel.
2561 * USB control path is for patching headers and USB bulk is for
2562 * patch body.
2563 */
2564 pipe = usb_sndctrlpipe(udev, 0);
2565 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2566 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2567 if (err < 0) {
2064ee33 2568 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 2569 goto done;
2570 }
2571
2572 sent += size;
2573 count -= size;
2574
2575 while (count) {
2576 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2577
2578 memcpy(buf, firmware->data + sent, size);
2579
2580 pipe = usb_sndbulkpipe(udev, 0x02);
2581 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2582 QCA_DFU_TIMEOUT);
2583 if (err < 0) {
2064ee33
MH		 2584 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2585 sent, firmware->size, err);
3267c884
KBYT		 2586 break;
2587 }
2588
2589 if (size != len) {
2064ee33 2590 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 2591 err = -EILSEQ;
2592 break;
2593 }
2594
2595 sent += size;
2596 count -= size;
2597 }
2598
2599done:
2600 kfree(buf);
2601 return err;
2602}
2603
2604static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2605 struct qca_version *ver,
2606 const struct qca_device_info *info)
2607{
2608 struct qca_rampatch_version *rver;
2609 const struct firmware *fw;
bf906b3d
KBYT		 2610 u32 ver_rom, ver_patch;
2611 u16 rver_rom, rver_patch;
3267c884
KBYT		 2612 char fwname[64];
2613 int err;
2614
bf906b3d
KBYT		 2615 ver_rom = le32_to_cpu(ver->rom_version);
2616 ver_patch = le32_to_cpu(ver->patch_version);
2617
2618 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2619
2620 err = request_firmware(&fw, fwname, &hdev->dev);
2621 if (err) {
2064ee33
MH		 2622 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2623 fwname, err);
3267c884
KBYT		 2624 return err;
2625 }
2626
2064ee33 2627 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 2628
3267c884 2629 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2630 rver_rom = le16_to_cpu(rver->rom_version);
2631 rver_patch = le16_to_cpu(rver->patch_version);
2632
2064ee33
MH		 2633 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2634 "firmware rome 0x%x build 0x%x",
2635 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 2636
bf906b3d 2637 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 2638 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 2639 err = -EINVAL;
2640 goto done;
2641 }
2642
2643 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2644
2645done:
2646 release_firmware(fw);
2647
2648 return err;
2649}
2650
2651static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2652 struct qca_version *ver,
2653 const struct qca_device_info *info)
2654{
2655 const struct firmware *fw;
2656 char fwname[64];
2657 int err;
2658
2659 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2660 le32_to_cpu(ver->rom_version));
2661
2662 err = request_firmware(&fw, fwname, &hdev->dev);
2663 if (err) {
2064ee33
MH		 2664 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2665 fwname, err);
3267c884
KBYT		 2666 return err;
2667 }
2668
2064ee33 2669 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 2670
2671 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2672
2673 release_firmware(fw);
2674
2675 return err;
2676}
2677
2678static int btusb_setup_qca(struct hci_dev *hdev)
2679{
2680 const struct qca_device_info *info = NULL;
2681 struct qca_version ver;
bf906b3d 2682 u32 ver_rom;
3267c884
KBYT		 2683 u8 status;
2684 int i, err;
2685
2686 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2687 sizeof(ver));
3267c884
KBYT		 2688 if (err < 0)
2689 return err;
2690
bf906b3d 2691 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2692 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2693 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2694 info = &qca_devices_table[i];
2695 }
2696 if (!info) {
2064ee33 2697 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 2698 return -ENODEV;
2699 }
2700
2701 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2702 sizeof(status));
2703 if (err < 0)
2704 return err;
2705
2706 if (!(status & QCA_PATCH_UPDATED)) {
2707 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2708 if (err < 0)
2709 return err;
2710 }
2711
2712 if (!(status & QCA_SYSCFG_UPDATED)) {
2713 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2714 if (err < 0)
2715 return err;
2716 }
2717
2718 return 0;
2719}
2720
9d08f504
MH		 2721#ifdef CONFIG_BT_HCIBTUSB_BCM
2722static inline int __set_diag_interface(struct hci_dev *hdev)
2723{
2724 struct btusb_data *data = hci_get_drvdata(hdev);
2725 struct usb_interface *intf = data->diag;
2726 int i;
2727
2728 if (!data->diag)
2729 return -ENODEV;
2730
2731 data->diag_tx_ep = NULL;
2732 data->diag_rx_ep = NULL;
2733
2734 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2735 struct usb_endpoint_descriptor *ep_desc;
2736
2737 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2738
2739 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2740 data->diag_tx_ep = ep_desc;
2741 continue;
2742 }
2743
2744 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2745 data->diag_rx_ep = ep_desc;
2746 continue;
2747 }
2748 }
2749
2750 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 2751 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 2752 return -ENODEV;
2753 }
2754
2755 return 0;
2756}
2757
2758static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2759{
2760 struct btusb_data *data = hci_get_drvdata(hdev);
2761 struct sk_buff *skb;
2762 struct urb *urb;
2763 unsigned int pipe;
2764
2765 if (!data->diag_tx_ep)
2766 return ERR_PTR(-ENODEV);
2767
2768 urb = usb_alloc_urb(0, GFP_KERNEL);
2769 if (!urb)
2770 return ERR_PTR(-ENOMEM);
2771
2772 skb = bt_skb_alloc(2, GFP_KERNEL);
2773 if (!skb) {
2774 usb_free_urb(urb);
2775 return ERR_PTR(-ENOMEM);
2776 }
2777
634fef61
JB		 2778 skb_put_u8(skb, 0xf0);
2779 skb_put_u8(skb, enable);
9d08f504
MH		 2780
2781 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2782
2783 usb_fill_bulk_urb(urb, data->udev, pipe,
2784 skb->data, skb->len, btusb_tx_complete, skb);
2785
2786 skb->dev = (void *)hdev;
2787
2788 return urb;
2789}
2790
2791static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2792{
2793 struct btusb_data *data = hci_get_drvdata(hdev);
2794 struct urb *urb;
2795
2796 if (!data->diag)
2797 return -ENODEV;
2798
2799 if (!test_bit(HCI_RUNNING, &hdev->flags))
2800 return -ENETDOWN;
2801
2802 urb = alloc_diag_urb(hdev, enable);
2803 if (IS_ERR(urb))
2804 return PTR_ERR(urb);
2805
2806 return submit_or_queue_tx_urb(hdev, urb);
2807}
2808#endif
2809
fd913ef7
RJ		 2810#ifdef CONFIG_PM
2811static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2812{
2813 struct btusb_data *data = priv;
2814
2815 pm_wakeup_event(&data->udev->dev, 0);
017789f3 2816 pm_system_wakeup();
fd913ef7
RJ		 2817
2818 /* Disable only if not already disabled (keep it balanced) */
2819 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2820 disable_irq_nosync(irq);
2821 disable_irq_wake(irq);
2822 }
2823 return IRQ_HANDLED;
2824}
2825
2826static const struct of_device_id btusb_match_table[] = {
2827 { .compatible = "usb1286,204e" },
2828 { }
2829};
2830MODULE_DEVICE_TABLE(of, btusb_match_table);
2831
2832/* Use an oob wakeup pin? */
2833static int btusb_config_oob_wake(struct hci_dev *hdev)
2834{
2835 struct btusb_data *data = hci_get_drvdata(hdev);
2836 struct device *dev = &data->udev->dev;
2837 int irq, ret;
2838
2839 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2840
2841 if (!of_match_device(btusb_match_table, dev))
2842 return 0;
2843
2844 /* Move on if no IRQ specified */
2845 irq = of_irq_get_byname(dev->of_node, "wakeup");
2846 if (irq <= 0) {
2847 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2848 return 0;
2849 }
2850
2851 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2852 0, "OOB Wake-on-BT", data);
2853 if (ret) {
2854 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2855 return ret;
2856 }
2857
2858 ret = device_init_wakeup(dev, true);
2859 if (ret) {
2860 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2861 return ret;
2862 }
2863
2864 data->oob_wake_irq = irq;
2865 disable_irq(irq);
2866 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2867 return 0;
2868}
2869#endif
2870
5e23b923 2871static int btusb_probe(struct usb_interface *intf,
89e7533d 2872 const struct usb_device_id *id)
5e23b923
MH		 2873{
2874 struct usb_endpoint_descriptor *ep_desc;
2875 struct btusb_data *data;
2876 struct hci_dev *hdev;
22f8e9db 2877 unsigned ifnum_base;
5e23b923
MH		 2878 int i, err;
2879
2880 BT_DBG("intf %p id %p", intf, id);
2881
cfeb4145 2882 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2883 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2884 if (!(id->driver_info & BTUSB_IFNUM_2))
2885 return -ENODEV;
2886 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2887 return -ENODEV;
2888 }
2889
2890 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2891
2892 if (!id->driver_info) {
2893 const struct usb_device_id *match;
89e7533d 2894
5e23b923
MH		 2895 match = usb_match_id(intf, blacklist_table);
2896 if (match)
2897 id = match;
2898 }
2899
cfeb4145
MH		 2900 if (id->driver_info == BTUSB_IGNORE)
2901 return -ENODEV;
2902
2d25f8b4
SL		 2903 if (id->driver_info & BTUSB_ATH3012) {
2904 struct usb_device *udev = interface_to_usbdev(intf);
2905
2906 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 2907 * patch and sysconfig files
2908 */
2d25f8b4
SL		 2909 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2910 return -ENODEV;
2911 }
2912
98921dbd 2913 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2914 if (!data)
2915 return -ENOMEM;
2916
2917 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2918 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2919
2920 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2921 data->intr_ep = ep_desc;
2922 continue;
2923 }
2924
2925 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2926 data->bulk_tx_ep = ep_desc;
2927 continue;
2928 }
2929
2930 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2931 data->bulk_rx_ep = ep_desc;
2932 continue;
2933 }
2934 }
2935
98921dbd 2936 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2937 return -ENODEV;
5e23b923 2938
893ba544
MH		 2939 if (id->driver_info & BTUSB_AMP) {
2940 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2941 data->cmdreq = 0x2b;
2942 } else {
2943 data->cmdreq_type = USB_TYPE_CLASS;
2944 data->cmdreq = 0x00;
2945 }
7a9d4020 2946
5e23b923 2947 data->udev = interface_to_usbdev(intf);
5fbcd260 2948 data->intf = intf;
5e23b923 2949
5e23b923 2950 INIT_WORK(&data->work, btusb_work);
7bee549e 2951 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2952 init_usb_anchor(&data->deferred);
2953 init_usb_anchor(&data->tx_anchor);
7bee549e 2954 spin_lock_init(&data->txlock);
5e23b923 2955
5e23b923
MH		 2956 init_usb_anchor(&data->intr_anchor);
2957 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2958 init_usb_anchor(&data->isoc_anchor);
9d08f504 2959 init_usb_anchor(&data->diag_anchor);
803b5836 2960 spin_lock_init(&data->rxlock);
5e23b923 2961
cda0dd78
MH		 2962 if (id->driver_info & BTUSB_INTEL_NEW) {
2963 data->recv_event = btusb_recv_event_intel;
2964 data->recv_bulk = btusb_recv_bulk_intel;
2965 set_bit(BTUSB_BOOTLOADER, &data->flags);
2966 } else {
2967 data->recv_event = hci_recv_frame;
2968 data->recv_bulk = btusb_recv_bulk;
2969 }
2cbd3f5c 2970
5e23b923 2971 hdev = hci_alloc_dev();
98921dbd 2972 if (!hdev)
5e23b923 2973 return -ENOMEM;
5e23b923 2974
c13854ce 2975 hdev->bus = HCI_USB;
155961e8 2976 hci_set_drvdata(hdev, data);
5e23b923 2977
893ba544
MH		 2978 if (id->driver_info & BTUSB_AMP)
2979 hdev->dev_type = HCI_AMP;
2980 else
ca8bee5d 2981 hdev->dev_type = HCI_PRIMARY;
893ba544 2982
5e23b923
MH		 2983 data->hdev = hdev;
2984
2985 SET_HCIDEV_DEV(hdev, &intf->dev);
2986
9f8f962c
MH		 2987 hdev->open = btusb_open;
2988 hdev->close = btusb_close;
2989 hdev->flush = btusb_flush;
2990 hdev->send = btusb_send_frame;
2991 hdev->notify = btusb_notify;
2992
fd913ef7
RJ		 2993#ifdef CONFIG_PM
2994 err = btusb_config_oob_wake(hdev);
2995 if (err)
2996 goto out_free_dev;
a4ccc9e3
RJ		 2997
2998 /* Marvell devices may need a specific chip configuration */
2999 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3000 err = marvell_config_oob_wake(hdev);
3001 if (err)
3002 goto out_free_dev;
3003 }
fd913ef7 3004#endif
418678b0
SJ		 3005 if (id->driver_info & BTUSB_CW6622)
3006 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3007
6c9d435d
MH		 3008 if (id->driver_info & BTUSB_BCM2045)
3009 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3010
9f8f962c
MH		 3011 if (id->driver_info & BTUSB_BCM92035)
3012 hdev->setup = btusb_setup_bcm92035;
5e23b923 3013
c2bfb100 3014#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 3015 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 3016 hdev->manufacturer = 15;
c2bfb100 3017 hdev->setup = btbcm_setup_patchram;
9d08f504 3018 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3019 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3020
3021 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3022 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3023 }
10d4c673 3024
9d08f504 3025 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 3026 hdev->manufacturer = 15;
c2bfb100 3027 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3028 hdev->set_diag = btusb_bcm_set_diag;
3029
3030 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3031 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3032 }
c2bfb100 3033#endif
17b2772b 3034
cb8d6597 3035 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3036 hdev->manufacturer = 2;
dffd30ee 3037 hdev->setup = btusb_setup_intel;
bfbd45e9 3038 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3039 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3040 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 3041 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3042 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3043 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3044 }
dffd30ee 3045
cda0dd78 3046 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3047 hdev->manufacturer = 2;
cda0dd78
MH		 3048 hdev->send = btusb_send_frame_intel;
3049 hdev->setup = btusb_setup_intel_new;
eeb6abe9 3050 hdev->hw_error = btintel_hw_error;
6d2e50d2 3051 hdev->set_diag = btintel_set_diag;
4185a0f5 3052 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 3053 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 3054 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3055 }
3056
ae8df494
AK		 3057 if (id->driver_info & BTUSB_MARVELL)
3058 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3059
661cf88a
MH		 3060 if (id->driver_info & BTUSB_SWAVE) {
3061 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3062 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3063 }
d57dbe77 3064
e4c534bb
MH		 3065 if (id->driver_info & BTUSB_INTEL_BOOT) {
3066 hdev->manufacturer = 2;
40df783d 3067 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3068 }
40df783d 3069
79f0c87d 3070 if (id->driver_info & BTUSB_ATH3012) {
5859223e 3071 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3072 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3073 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3074 }
5859223e 3075
3267c884
KBYT		 3076 if (id->driver_info & BTUSB_QCA_ROME) {
3077 data->setup_on_usb = btusb_setup_qca;
3078 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
fd865802
LL		 3079
3080 /* QCA Rome devices lose their updated firmware over suspend,
3081 * but the USB hub doesn't notice any status change.
3082 * Explicitly request a device reset on resume.
3083 */
3084 set_bit(BTUSB_RESET_RESUME, &data->flags);
3267c884
KBYT		 3085 }
3086
db33c77d 3087#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 3088 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 3089 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 3090
3091 /* Realtek devices lose their updated firmware over suspend,
3092 * but the USB hub doesn't notice any status change.
3093 * Explicitly request a device reset on resume.
3094 */
3095 set_bit(BTUSB_RESET_RESUME, &data->flags);
3096 }
db33c77d 3097#endif
a2698a9b 3098
893ba544
MH		 3099 if (id->driver_info & BTUSB_AMP) {
3100 /* AMP controllers do not support SCO packets */
3101 data->isoc = NULL;
3102 } else {
22f8e9db
MH		 3103 /* Interface orders are hardcoded in the specification */
3104 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
893ba544 3105 }
9bfa35fe 3106
7a9d4020 3107 if (!reset)
a6c511c6 3108 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3109
3110 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3111 if (!disable_scofix)
3112 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3113 }
3114
9bfa35fe
MH		 3115 if (id->driver_info & BTUSB_BROKEN_ISOC)
3116 data->isoc = NULL;
3117
7a9d4020
MH		 3118 if (id->driver_info & BTUSB_DIGIANSWER) {
3119 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3120 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3121 }
3122
3123 if (id->driver_info & BTUSB_CSR) {
3124 struct usb_device *udev = data->udev;
81cac64b 3125 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3126
3127 /* Old firmware would otherwise execute USB reset */
81cac64b 3128 if (bcdDevice < 0x117)
a6c511c6 3129 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3130
3131 /* Fake CSR devices with broken commands */
6cafcd95 3132 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3133 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3134
3135 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3136 }
3137
cfeb4145 3138 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3139 struct usb_device *udev = data->udev;
cfeb4145 3140
7a9d4020 3141 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3142 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3143 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3144 }
3145
3a5ef20c
MH		 3146 if (id->driver_info & BTUSB_INTEL_BOOT) {
3147 /* A bug in the bootloader causes that interrupt interface is
3148 * only enabled after receiving SetInterface(0, AltSetting=0).
3149 */
3150 err = usb_set_interface(data->udev, 0, 0);
3151 if (err < 0) {
3152 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3153 goto out_free_dev;
3a5ef20c
MH		 3154 }
3155 }
3156
9bfa35fe
MH		 3157 if (data->isoc) {
3158 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3159 data->isoc, data);
10ab133b
RJ		 3160 if (err < 0)
3161 goto out_free_dev;
9bfa35fe
MH		 3162 }
3163
9d08f504
MH		 3164#ifdef CONFIG_BT_HCIBTUSB_BCM
3165 if (data->diag) {
3166 if (!usb_driver_claim_interface(&btusb_driver,
3167 data->diag, data))
3168 __set_diag_interface(hdev);
3169 else
3170 data->diag = NULL;
3171 }
3172#endif
3173
5e23b923 3174 err = hci_register_dev(hdev);
10ab133b
RJ		 3175 if (err < 0)
3176 goto out_free_dev;
5e23b923
MH		 3177
3178 usb_set_intfdata(intf, data);
3179
3180 return 0;
10ab133b
RJ		 3181
3182out_free_dev:
3183 hci_free_dev(hdev);
3184 return err;
5e23b923
MH		 3185}
3186
3187static void btusb_disconnect(struct usb_interface *intf)
3188{
3189 struct btusb_data *data = usb_get_intfdata(intf);
3190 struct hci_dev *hdev;
3191
3192 BT_DBG("intf %p", intf);
3193
3194 if (!data)
3195 return;
3196
3197 hdev = data->hdev;
5fbcd260
MH		 3198 usb_set_intfdata(data->intf, NULL);
3199
3200 if (data->isoc)
3201 usb_set_intfdata(data->isoc, NULL);
5e23b923 3202
9d08f504
MH		 3203 if (data->diag)
3204 usb_set_intfdata(data->diag, NULL);
3205
5e23b923
MH		 3206 hci_unregister_dev(hdev);
3207
9d08f504
MH		 3208 if (intf == data->intf) {
3209 if (data->isoc)
3210 usb_driver_release_interface(&btusb_driver, data->isoc);
3211 if (data->diag)
3212 usb_driver_release_interface(&btusb_driver, data->diag);
3213 } else if (intf == data->isoc) {
3214 if (data->diag)
3215 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3216 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3217 } else if (intf == data->diag) {
3218 usb_driver_release_interface(&btusb_driver, data->intf);
3219 if (data->isoc)
3220 usb_driver_release_interface(&btusb_driver, data->isoc);
3221 }
5fbcd260 3222
fd913ef7
RJ		 3223 if (data->oob_wake_irq)
3224 device_init_wakeup(&data->udev->dev, false);
3225
5e23b923
MH		 3226 hci_free_dev(hdev);
3227}
3228
7bee549e 3229#ifdef CONFIG_PM
6a88adf2
MH		 3230static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3231{
3232 struct btusb_data *data = usb_get_intfdata(intf);
3233
3234 BT_DBG("intf %p", intf);
3235
3236 if (data->suspend_count++)
3237 return 0;
3238
7bee549e 3239 spin_lock_irq(&data->txlock);
5b1b0b81 3240 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3241 set_bit(BTUSB_SUSPENDING, &data->flags);
3242 spin_unlock_irq(&data->txlock);
3243 } else {
3244 spin_unlock_irq(&data->txlock);
3245 data->suspend_count--;
3246 return -EBUSY;
3247 }
3248
6a88adf2
MH		 3249 cancel_work_sync(&data->work);
3250
7bee549e 3251 btusb_stop_traffic(data);
6a88adf2
MH		 3252 usb_kill_anchored_urbs(&data->tx_anchor);
3253
fd913ef7
RJ		 3254 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3255 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3256 enable_irq_wake(data->oob_wake_irq);
3257 enable_irq(data->oob_wake_irq);
3258 }
3259
04b8c814
DD		 3260 /* Optionally request a device reset on resume, but only when
3261 * wakeups are disabled. If wakeups are enabled we assume the
3262 * device will stay powered up throughout suspend.
3263 */
3264 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3265 !device_may_wakeup(&data->udev->dev))
3266 data->udev->reset_resume = 1;
3267
6a88adf2
MH		 3268 return 0;
3269}
3270
7bee549e
ON		 3271static void play_deferred(struct btusb_data *data)
3272{
3273 struct urb *urb;
3274 int err;
3275
3276 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 3277 usb_anchor_urb(urb, &data->tx_anchor);
3278
7bee549e 3279 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 3280 if (err < 0) {
3281 if (err != -EPERM && err != -ENODEV)
3282 BT_ERR("%s urb %p submission failed (%d)",
3283 data->hdev->name, urb, -err);
3284 kfree(urb->setup_packet);
3285 usb_unanchor_urb(urb);
3286 usb_free_urb(urb);
7bee549e 3287 break;
19cfe912 3288 }
7bee549e
ON		 3289
3290 data->tx_in_flight++;
19cfe912
JC		 3291 usb_free_urb(urb);
3292 }
3293
3294 /* Cleanup the rest deferred urbs. */
3295 while ((urb = usb_get_from_anchor(&data->deferred))) {
3296 kfree(urb->setup_packet);
3297 usb_free_urb(urb);
7bee549e 3298 }
7bee549e
ON		 3299}
3300
6a88adf2
MH		 3301static int btusb_resume(struct usb_interface *intf)
3302{
3303 struct btusb_data *data = usb_get_intfdata(intf);
3304 struct hci_dev *hdev = data->hdev;
7bee549e 3305 int err = 0;
6a88adf2
MH		 3306
3307 BT_DBG("intf %p", intf);
3308
3309 if (--data->suspend_count)
3310 return 0;
3311
fd913ef7
RJ		 3312 /* Disable only if not already disabled (keep it balanced) */
3313 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3314 disable_irq(data->oob_wake_irq);
3315 disable_irq_wake(data->oob_wake_irq);
3316 }
3317
6a88adf2 3318 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3319 goto done;
6a88adf2
MH		 3320
3321 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3322 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3323 if (err < 0) {
3324 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3325 goto failed;
6a88adf2
MH		 3326 }
3327 }
3328
3329 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3330 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3331 if (err < 0) {
6a88adf2 3332 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3333 goto failed;
3334 }
3335
3336 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3337 }
3338
3339 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3340 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3341 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3342 else
3343 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3344 }
3345
7bee549e
ON		 3346 spin_lock_irq(&data->txlock);
3347 play_deferred(data);
3348 clear_bit(BTUSB_SUSPENDING, &data->flags);
3349 spin_unlock_irq(&data->txlock);
3350 schedule_work(&data->work);
3351
6a88adf2 3352 return 0;
7bee549e
ON		 3353
3354failed:
3355 usb_scuttle_anchored_urbs(&data->deferred);
3356done:
3357 spin_lock_irq(&data->txlock);
3358 clear_bit(BTUSB_SUSPENDING, &data->flags);
3359 spin_unlock_irq(&data->txlock);
3360
3361 return err;
6a88adf2 3362}
7bee549e 3363#endif
6a88adf2 3364
5e23b923
MH		 3365static struct usb_driver btusb_driver = {
3366 .name = "btusb",
3367 .probe = btusb_probe,
3368 .disconnect = btusb_disconnect,
7bee549e 3369#ifdef CONFIG_PM
6a88adf2
MH		 3370 .suspend = btusb_suspend,
3371 .resume = btusb_resume,
7bee549e 3372#endif
5e23b923 3373 .id_table = btusb_table,
7bee549e 3374 .supports_autosuspend = 1,
e1f12eb6 3375 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3376};
3377
93f1508c 3378module_usb_driver(btusb_driver);
5e23b923 3379
cfeb4145
MH		 3380module_param(disable_scofix, bool, 0644);
3381MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3382
3383module_param(force_scofix, bool, 0644);
3384MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3385
3386module_param(reset, bool, 0644);
3387MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3388
5e23b923
MH		 3389MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3390MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3391MODULE_VERSION(VERSION);
3392MODULE_LICENSE("GPL");
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