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drivers: net: Fix Kconfig indentation
[mirror_ubuntu-hirsute-kernel.git] / drivers / bluetooth / btusb.c
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1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
5e23b923
MH		 2/*
3 *
4 * Generic Bluetooth USB driver
5 *
9bfa35fe 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 7 */
8
1fdb9269 9#include <linux/dmi.h>
5e23b923 10#include <linux/module.h>
5e23b923 11#include <linux/usb.h>
61f5acea 12#include <linux/usb/quirks.h>
dffd30ee 13#include <linux/firmware.h>
a1c49c43 14#include <linux/iopoll.h>
fd913ef7
RJ		 15#include <linux/of_device.h>
16#include <linux/of_irq.h>
017789f3 17#include <linux/suspend.h>
dc786b2c 18#include <linux/gpio/consumer.h>
a2698a9b 19#include <asm/unaligned.h>
5e23b923
MH		 20
21#include <net/bluetooth/bluetooth.h>
22#include <net/bluetooth/hci_core.h>
23
4185a0f5 24#include "btintel.h"
1df1f591 25#include "btbcm.h"
db33c77d 26#include "btrtl.h"
1df1f591 27
34dced9b 28#define VERSION "0.8"
cfeb4145 29
90ab5ee9
RR		 30static bool disable_scofix;
31static bool force_scofix;
eff2d68c 32static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
7a9d4020 33
917a3337 34static bool reset = true;
cfeb4145
MH		 35
36static struct usb_driver btusb_driver;
37
38#define BTUSB_IGNORE 0x01
7a9d4020
MH		 39#define BTUSB_DIGIANSWER 0x02
40#define BTUSB_CSR 0x04
41#define BTUSB_SNIFFER 0x08
42#define BTUSB_BCM92035 0x10
43#define BTUSB_BROKEN_ISOC 0x20
44#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 45#define BTUSB_ATH3012 0x80
dffd30ee 46#define BTUSB_INTEL 0x100
40df783d
MH		 47#define BTUSB_INTEL_BOOT 0x200
48#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 49#define BTUSB_MARVELL 0x800
4fcef8ed 50#define BTUSB_SWAVE 0x1000
cda0dd78 51#define BTUSB_INTEL_NEW 0x2000
893ba544 52#define BTUSB_AMP 0x4000
3267c884 53#define BTUSB_QCA_ROME 0x8000
17b2772b 54#define BTUSB_BCM_APPLE 0x10000
a2698a9b 55#define BTUSB_REALTEK 0x20000
6c9d435d 56#define BTUSB_BCM2045 0x40000
22f8e9db 57#define BTUSB_IFNUM_2 0x80000
418678b0 58#define BTUSB_CW6622 0x100000
a1c49c43 59#define BTUSB_MEDIATEK 0x200000
5e23b923 60
54265202 61static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 62 /* Generic Bluetooth USB device */
63 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
64
893ba544
MH		 65 /* Generic Bluetooth AMP device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
67
d63b2826
DD		 68 /* Generic Bluetooth USB interface */
69 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
70
1fa6535f 71 /* Apple-specific (Broadcom) devices */
17b2772b 72 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 73 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 74
178c059e
CYC		 75 /* MediaTek MT76x0E */
76 { USB_DEVICE(0x0e8d, 0x763f) },
77
c510eae3 78 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 79 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 80
3cd01976
NI		 81 /* Apple MacBookPro 7,1 */
82 { USB_DEVICE(0x05ac, 0x8213) },
83
0a79f674
CL		 84 /* Apple iMac11,1 */
85 { USB_DEVICE(0x05ac, 0x8215) },
86
9c047157
NI		 87 /* Apple MacBookPro6,2 */
88 { USB_DEVICE(0x05ac, 0x8218) },
89
3e3ede7d
EH		 90 /* Apple MacBookAir3,1, MacBookAir3,2 */
91 { USB_DEVICE(0x05ac, 0x821b) },
92
a63b723d
PAVM		 93 /* Apple MacBookAir4,1 */
94 { USB_DEVICE(0x05ac, 0x821f) },
95
88d377b6
MAP		 96 /* Apple MacBookPro8,2 */
97 { USB_DEVICE(0x05ac, 0x821a) },
98
f78b6826
JK		 99 /* Apple MacMini5,1 */
100 { USB_DEVICE(0x05ac, 0x8281) },
101
cfeb4145 102 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 103 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 104
105 /* Bluetooth Ultraport Module from IBM */
106 { USB_DEVICE(0x04bf, 0x030a) },
107
108 /* ALPS Modules with non-standard id */
109 { USB_DEVICE(0x044e, 0x3001) },
110 { USB_DEVICE(0x044e, 0x3002) },
111
112 /* Ericsson with non-standard id */
113 { USB_DEVICE(0x0bdb, 0x1002) },
114
115 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 116 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 117
d13431ca
WJS		 118 /* Broadcom BCM20702A0 */
119 { USB_DEVICE(0x413c, 0x8197) },
120
d049f4e5
MH		 121 /* Broadcom BCM20702B0 (Dynex/Insignia) */
122 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
123
2faf71ce 124 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
628c26b4
DT		 125 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
126 .driver_info = BTUSB_BCM_PATCHRAM },
2faf71ce 127
a57bac43
CH		 128 /* Broadcom BCM920703 (HTC Vive) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
98514036 132 /* Foxconn - Hon Hai */
6029ddc2
HS		 133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 135
8f0c304c
MD		 136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
0b880062 140 /* Broadcom devices with vendor specific id */
10d4c673
PG		 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 143
c2aef6e8 144 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 147
5bcecf32 148 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 151
9113bfd8 152 /* IMC Networks - Broadcom based */
6331c686
MH		 153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 155
fdfddc60
WJS		 156 /* Dell Computer - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
1623d0bf
DT		 160 /* Toshiba Corp - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
40df783d 164 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 165 { USB_DEVICE(0x8087, 0x0a5a),
166 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 167
5e23b923
MH		 168 { } /* Terminating entry */
169};
170
171MODULE_DEVICE_TABLE(usb, btusb_table);
172
54265202 173static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 174 /* CSR BlueCore devices */
175 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
176
177 /* Broadcom BCM2033 without firmware */
178 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
179
6c9d435d
MH		 180 /* Broadcom BCM2045 devices */
181 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
182
be93112a 183 /* Atheros 3011 with sflash firmware */
0b880062
AS		 184 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 186 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 187 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 188 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 189 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 190 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 191
509e7861
CYC		 192 /* Atheros AR9285 Malbec with sflash firmware */
193 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
194
d9f51b51 195 /* Atheros 3012 with sflash firmware */
0b880062
AS		 196 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 201 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 202 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8 203 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 204 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 208 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 209 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 211 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 212 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 213 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 214 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d 215 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062 216 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 217 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 218 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 219 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 220 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 221 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
544a5916 222 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 223 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 224 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 225 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 226 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 227 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 228 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 229 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 230 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 231 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 232 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 233 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 234 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 236 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 237 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 238 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 239 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 240 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 241 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 242 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 243 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5 244 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896 245 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51 246
e9036e33
CYC		 247 /* Atheros AR5BBU12 with sflash firmware */
248 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
249
85d59726 250 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 251 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 252 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 253
3267c884 254 /* QCA ROME chipset */
1411a260 255 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
2054111b 256 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
93519934 257 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
e5a49ee9 258 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
c9e44474 259 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
1eef1c35 260 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
c9e44474 261 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
47ca5898 262 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
858ff38a 263 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
06e41d8a 264 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
1144a4ee 265 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
0a03f98b 266 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
d829b9e2 267 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
d666fc54 268 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
44d34af2 269 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
df2445bf 270 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
881cec4f 271 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
3267c884 272
cfeb4145 273 /* Broadcom BCM2035 */
7a9d4020 274 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 275 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
276 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 277
278 /* Broadcom BCM2045 */
7a9d4020
MH		 279 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
280 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 281
cfeb4145 282 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 283 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
284 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 285
286 /* HP laptop with Broadcom chip */
7a9d4020 287 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 288
289 /* Dell laptop with Broadcom chip */
7a9d4020 290 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 291
5ddd4a60 292 /* Dell Wireless 370 and 410 devices */
7a9d4020 293 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 294 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 295
7a9d4020
MH		 296 /* Belkin F8T012 and F8T013 devices */
297 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
298 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 299
5ddd4a60
MH		 300 /* Asus WL-BTD202 device */
301 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
302
303 /* Kensington Bluetooth USB adapter */
304 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
305
cfeb4145
MH		 306 /* RTX Telecom based adapters with buggy SCO support */
307 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
308 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
309
310 /* CONWISE Technology based adapters with buggy SCO support */
418678b0
SJ		 311 { USB_DEVICE(0x0e5e, 0x6622),
312 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
cfeb4145 313
4fcef8ed 314 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 315 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 316
cfeb4145
MH		 317 /* Digianswer devices */
318 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
319 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
320
321 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 322 { USB_DEVICE(0x0a12, 0x0002),
323 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 324
325 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 326 { USB_DEVICE(0x16d3, 0x0002),
327 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 328
cb1ee89f
MH		 329 /* Marvell Bluetooth devices */
330 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
331 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
1165df0e 332 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
cb1ee89f 333
d0ac9eb7 334 /* Intel Bluetooth devices */
de766142 335 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
1ce0cec1 336 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
2da711bc 337 { USB_DEVICE(0x8087, 0x0029), .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
a1c49c43
SW		 353 /* MediaTek Bluetooth devices */
354 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
355 .driver_info = BTUSB_MEDIATEK },
356
a2698a9b
DD		 357 /* Additional Realtek 8723AE Bluetooth devices */
358 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
359 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
360
361 /* Additional Realtek 8723BE Bluetooth devices */
362 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
363 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
a81d72d2 367 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
a2698a9b 368
a41e0796
VB		 369 /* Additional Realtek 8723BU Bluetooth devices */
370 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
371
66d9975c 372 /* Additional Realtek 8723DE Bluetooth devices */
45ae68b8 373 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
66d9975c
JHP		 374 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
375
a2698a9b
DD		 376 /* Additional Realtek 8821AE Bluetooth devices */
377 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
378 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
379 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
380 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
381 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
382
fed03fe7 383 /* Additional Realtek 8822BE Bluetooth devices */
1cd2fabf 384 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
fed03fe7
LF		 385 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
386
6d0762b1
JHP		 387 /* Additional Realtek 8822CE Bluetooth devices */
388 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
389
4481c076
PP		 390 /* Silicon Wave based devices */
391 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
392
5e23b923
MH		 393 { } /* Terminating entry */
394};
395
1fdb9269
HG		 396/* The Bluetooth USB module build into some devices needs to be reset on resume,
397 * this is a problem with the platform (likely shutting off all power) not with
398 * the module itself. So we use a DMI list to match known broken platforms.
399 */
400static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
401 {
0c6e5266 402 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
1fdb9269 403 .matches = {
0c6e5266
KHF		 404 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
1fdb9269
HG		 406 },
407 },
596b07a9
HG		 408 {
409 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
410 .matches = {
411 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
412 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
413 },
414 },
939bc6c5
HG		 415 {
416 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
417 .matches = {
418 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
419 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
420 },
421 },
1fdb9269
HG		 422 {}
423};
424
9bfa35fe
MH		 425#define BTUSB_MAX_ISOC_FRAMES 10
426
5e23b923
MH		 427#define BTUSB_INTR_RUNNING 0
428#define BTUSB_BULK_RUNNING 1
9bfa35fe 429#define BTUSB_ISOC_RUNNING 2
7bee549e 430#define BTUSB_SUSPENDING 3
08b8b6c4 431#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 432#define BTUSB_BOOTLOADER 5
433#define BTUSB_DOWNLOADING 6
ce6bb929 434#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 435#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 436#define BTUSB_BOOTING 9
61f5acea
HG		 437#define BTUSB_DIAG_RUNNING 10
438#define BTUSB_OOB_WAKE_ENABLED 11
dc786b2c 439#define BTUSB_HW_RESET_ACTIVE 12
a1c49c43 440#define BTUSB_TX_WAIT_VND_EVT 13
9e45524a 441#define BTUSB_WAKEUP_DISABLE 14
5e23b923
MH		 442
443struct btusb_data {
444 struct hci_dev *hdev;
445 struct usb_device *udev;
5fbcd260 446 struct usb_interface *intf;
9bfa35fe 447 struct usb_interface *isoc;
9d08f504 448 struct usb_interface *diag;
459232fc 449 unsigned isoc_ifnum;
5e23b923 450
5e23b923
MH		 451 unsigned long flags;
452
453 struct work_struct work;
7bee549e 454 struct work_struct waker;
5e23b923 455
803b5836 456 struct usb_anchor deferred;
5e23b923 457 struct usb_anchor tx_anchor;
803b5836
MH		 458 int tx_in_flight;
459 spinlock_t txlock;
460
5e23b923
MH		 461 struct usb_anchor intr_anchor;
462 struct usb_anchor bulk_anchor;
9bfa35fe 463 struct usb_anchor isoc_anchor;
9d08f504 464 struct usb_anchor diag_anchor;
a1c49c43 465 struct usb_anchor ctrl_anchor;
803b5836
MH		 466 spinlock_t rxlock;
467
468 struct sk_buff *evt_skb;
469 struct sk_buff *acl_skb;
470 struct sk_buff *sco_skb;
5e23b923
MH		 471
472 struct usb_endpoint_descriptor *intr_ep;
473 struct usb_endpoint_descriptor *bulk_tx_ep;
474 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 475 struct usb_endpoint_descriptor *isoc_tx_ep;
476 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 477 struct usb_endpoint_descriptor *diag_tx_ep;
478 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 479
dc786b2c
RJ		 480 struct gpio_desc *reset_gpio;
481
7a9d4020 482 __u8 cmdreq_type;
893ba544 483 __u8 cmdreq;
7a9d4020 484
43c2e57f 485 unsigned int sco_num;
9bfa35fe 486 int isoc_altsetting;
6a88adf2 487 int suspend_count;
2cbd3f5c 488
97307f51 489 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 490 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 491
492 int (*setup_on_usb)(struct hci_dev *hdev);
fd913ef7
RJ		 493
494 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
dc786b2c 495 unsigned cmd_timeout_cnt;
5e23b923
MH		 496};
497
dc786b2c
RJ		 498
499static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
500{
501 struct btusb_data *data = hci_get_drvdata(hdev);
502 struct gpio_desc *reset_gpio = data->reset_gpio;
503
504 if (++data->cmd_timeout_cnt < 5)
505 return;
506
507 if (!reset_gpio) {
508 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
509 return;
510 }
511
512 /*
513 * Toggle the hard reset line if the platform provides one. The reset
514 * is going to yank the device off the USB and then replug. So doing
515 * once is enough. The cleanup is handled correctly on the way out
516 * (standard USB disconnect), and the new device is detected cleanly
517 * and bound to the driver again like it should be.
518 */
519 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
520 bt_dev_err(hdev, "last reset failed? Not resetting again");
521 return;
522 }
523
524 bt_dev_err(hdev, "Initiating HW reset via gpio");
2de66bb8
RJ		 525 gpiod_set_value_cansleep(reset_gpio, 1);
526 msleep(100);
527 gpiod_set_value_cansleep(reset_gpio, 0);
dc786b2c
RJ		 528}
529
d7ef0d1e
AL		 530static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
531{
532 struct btusb_data *data = hci_get_drvdata(hdev);
533 struct gpio_desc *reset_gpio = data->reset_gpio;
534
535 if (++data->cmd_timeout_cnt < 5)
536 return;
537
538 if (!reset_gpio) {
539 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
540 return;
541 }
542
543 /* Toggle the hard reset line. The Realtek device is going to
544 * yank itself off the USB and then replug. The cleanup is handled
545 * correctly on the way out (standard USB disconnect), and the new
546 * device is detected cleanly and bound to the driver again like
547 * it should be.
548 */
549 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
550 bt_dev_err(hdev, "last reset failed? Not resetting again");
551 return;
552 }
553
554 bt_dev_err(hdev, "Reset Realtek device via gpio");
555 gpiod_set_value_cansleep(reset_gpio, 0);
556 msleep(200);
557 gpiod_set_value_cansleep(reset_gpio, 1);
558}
559
803b5836
MH		 560static inline void btusb_free_frags(struct btusb_data *data)
561{
562 unsigned long flags;
563
564 spin_lock_irqsave(&data->rxlock, flags);
565
566 kfree_skb(data->evt_skb);
567 data->evt_skb = NULL;
568
569 kfree_skb(data->acl_skb);
570 data->acl_skb = NULL;
571
572 kfree_skb(data->sco_skb);
573 data->sco_skb = NULL;
574
575 spin_unlock_irqrestore(&data->rxlock, flags);
576}
577
1ffa4ad0
MH		 578static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
579{
803b5836 580 struct sk_buff *skb;
a5e50d5b 581 unsigned long flags;
803b5836
MH		 582 int err = 0;
583
a5e50d5b 584 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 585 skb = data->evt_skb;
586
587 while (count) {
588 int len;
589
590 if (!skb) {
591 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
592 if (!skb) {
593 err = -ENOMEM;
594 break;
595 }
596
618e8bc2
MH		 597 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
598 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 599 }
600
618e8bc2 601 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 602 skb_put_data(skb, buffer, len);
803b5836
MH		 603
604 count -= len;
605 buffer += len;
618e8bc2 606 hci_skb_expect(skb) -= len;
803b5836
MH		 607
608 if (skb->len == HCI_EVENT_HDR_SIZE) {
609 /* Complete event header */
618e8bc2 610 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 611
618e8bc2 612 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 613 kfree_skb(skb);
614 skb = NULL;
615
616 err = -EILSEQ;
617 break;
618 }
619 }
620
618e8bc2 621 if (!hci_skb_expect(skb)) {
803b5836 622 /* Complete frame */
97307f51 623 data->recv_event(data->hdev, skb);
803b5836
MH		 624 skb = NULL;
625 }
626 }
627
628 data->evt_skb = skb;
a5e50d5b 629 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 630
631 return err;
1ffa4ad0
MH		 632}
633
634static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
635{
803b5836 636 struct sk_buff *skb;
a5e50d5b 637 unsigned long flags;
803b5836
MH		 638 int err = 0;
639
a5e50d5b 640 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 641 skb = data->acl_skb;
642
643 while (count) {
644 int len;
645
646 if (!skb) {
647 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
648 if (!skb) {
649 err = -ENOMEM;
650 break;
651 }
652
618e8bc2
MH		 653 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
654 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 655 }
656
618e8bc2 657 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 658 skb_put_data(skb, buffer, len);
803b5836
MH		 659
660 count -= len;
661 buffer += len;
618e8bc2 662 hci_skb_expect(skb) -= len;
803b5836
MH		 663
664 if (skb->len == HCI_ACL_HDR_SIZE) {
665 __le16 dlen = hci_acl_hdr(skb)->dlen;
666
667 /* Complete ACL header */
618e8bc2 668 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 669
618e8bc2 670 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 671 kfree_skb(skb);
672 skb = NULL;
673
674 err = -EILSEQ;
675 break;
676 }
677 }
678
618e8bc2 679 if (!hci_skb_expect(skb)) {
803b5836
MH		 680 /* Complete frame */
681 hci_recv_frame(data->hdev, skb);
682 skb = NULL;
683 }
684 }
685
686 data->acl_skb = skb;
a5e50d5b 687 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 688
689 return err;
1ffa4ad0
MH		 690}
691
692static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
693{
803b5836 694 struct sk_buff *skb;
a5e50d5b 695 unsigned long flags;
803b5836
MH		 696 int err = 0;
697
a5e50d5b 698 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 699 skb = data->sco_skb;
700
701 while (count) {
702 int len;
703
704 if (!skb) {
705 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
706 if (!skb) {
707 err = -ENOMEM;
708 break;
709 }
710
618e8bc2
MH		 711 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
712 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 713 }
714
618e8bc2 715 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 716 skb_put_data(skb, buffer, len);
803b5836
MH		 717
718 count -= len;
719 buffer += len;
618e8bc2 720 hci_skb_expect(skb) -= len;
803b5836
MH		 721
722 if (skb->len == HCI_SCO_HDR_SIZE) {
723 /* Complete SCO header */
618e8bc2 724 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 725
618e8bc2 726 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 727 kfree_skb(skb);
728 skb = NULL;
729
730 err = -EILSEQ;
731 break;
732 }
733 }
734
618e8bc2 735 if (!hci_skb_expect(skb)) {
803b5836
MH		 736 /* Complete frame */
737 hci_recv_frame(data->hdev, skb);
738 skb = NULL;
739 }
740 }
741
742 data->sco_skb = skb;
a5e50d5b 743 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 744
745 return err;
1ffa4ad0
MH		 746}
747
5e23b923
MH		 748static void btusb_intr_complete(struct urb *urb)
749{
750 struct hci_dev *hdev = urb->context;
155961e8 751 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 752 int err;
753
89e7533d
MH		 754 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
755 urb->actual_length);
5e23b923
MH		 756
757 if (!test_bit(HCI_RUNNING, &hdev->flags))
758 return;
759
760 if (urb->status == 0) {
9bfa35fe
MH		 761 hdev->stat.byte_rx += urb->actual_length;
762
1ffa4ad0
MH		 763 if (btusb_recv_intr(data, urb->transfer_buffer,
764 urb->actual_length) < 0) {
2064ee33 765 bt_dev_err(hdev, "corrupted event packet");
5e23b923
MH		 766 hdev->stat.err_rx++;
767 }
85560c4a
CC		 768 } else if (urb->status == -ENOENT) {
769 /* Avoid suspend failed when usb_kill_urb */
770 return;
5e23b923
MH		 771 }
772
773 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
774 return;
775
7bee549e 776 usb_mark_last_busy(data->udev);
5e23b923
MH		 777 usb_anchor_urb(urb, &data->intr_anchor);
778
779 err = usb_submit_urb(urb, GFP_ATOMIC);
780 if (err < 0) {
4935f1c1 781 /* -EPERM: urb is being killed;
d98422cb
DR		 782 * -ENODEV: device got disconnected
783 */
4935f1c1 784 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 785 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
786 urb, -err);
5e23b923
MH		 787 usb_unanchor_urb(urb);
788 }
789}
790
2eda66f4 791static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 792{
155961e8 793 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 794 struct urb *urb;
795 unsigned char *buf;
796 unsigned int pipe;
797 int err, size;
798
799 BT_DBG("%s", hdev->name);
800
9bfa35fe
MH		 801 if (!data->intr_ep)
802 return -ENODEV;
803
2eda66f4 804 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 805 if (!urb)
806 return -ENOMEM;
807
808 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
809
2eda66f4 810 buf = kmalloc(size, mem_flags);
5e23b923
MH		 811 if (!buf) {
812 usb_free_urb(urb);
813 return -ENOMEM;
814 }
815
816 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
817
818 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 819 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 820
821 urb->transfer_flags |= URB_FREE_BUFFER;
822
823 usb_anchor_urb(urb, &data->intr_anchor);
824
2eda66f4 825 err = usb_submit_urb(urb, mem_flags);
5e23b923 826 if (err < 0) {
d4b8d1c9 827 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 828 bt_dev_err(hdev, "urb %p submission failed (%d)",
829 urb, -err);
5e23b923 830 usb_unanchor_urb(urb);
5e23b923
MH		 831 }
832
833 usb_free_urb(urb);
834
835 return err;
836}
837
838static void btusb_bulk_complete(struct urb *urb)
839{
840 struct hci_dev *hdev = urb->context;
155961e8 841 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 842 int err;
843
89e7533d
MH		 844 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
845 urb->actual_length);
5e23b923
MH		 846
847 if (!test_bit(HCI_RUNNING, &hdev->flags))
848 return;
849
850 if (urb->status == 0) {
9bfa35fe
MH		 851 hdev->stat.byte_rx += urb->actual_length;
852
2cbd3f5c 853 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 854 urb->actual_length) < 0) {
2064ee33 855 bt_dev_err(hdev, "corrupted ACL packet");
5e23b923
MH		 856 hdev->stat.err_rx++;
857 }
85560c4a
CC		 858 } else if (urb->status == -ENOENT) {
859 /* Avoid suspend failed when usb_kill_urb */
860 return;
5e23b923
MH		 861 }
862
863 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
864 return;
865
866 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 867 usb_mark_last_busy(data->udev);
5e23b923
MH		 868
869 err = usb_submit_urb(urb, GFP_ATOMIC);
870 if (err < 0) {
4935f1c1 871 /* -EPERM: urb is being killed;
d98422cb
DR		 872 * -ENODEV: device got disconnected
873 */
4935f1c1 874 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 875 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
876 urb, -err);
5e23b923
MH		 877 usb_unanchor_urb(urb);
878 }
879}
880
2eda66f4 881static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 882{
155961e8 883 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 884 struct urb *urb;
885 unsigned char *buf;
886 unsigned int pipe;
290ba200 887 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 888
889 BT_DBG("%s", hdev->name);
890
9bfa35fe
MH		 891 if (!data->bulk_rx_ep)
892 return -ENODEV;
893
2eda66f4 894 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 895 if (!urb)
896 return -ENOMEM;
897
2eda66f4 898 buf = kmalloc(size, mem_flags);
5e23b923
MH		 899 if (!buf) {
900 usb_free_urb(urb);
901 return -ENOMEM;
902 }
903
904 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
905
89e7533d
MH		 906 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
907 btusb_bulk_complete, hdev);
5e23b923
MH		 908
909 urb->transfer_flags |= URB_FREE_BUFFER;
910
7bee549e 911 usb_mark_last_busy(data->udev);
5e23b923
MH		 912 usb_anchor_urb(urb, &data->bulk_anchor);
913
2eda66f4 914 err = usb_submit_urb(urb, mem_flags);
5e23b923 915 if (err < 0) {
d4b8d1c9 916 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 917 bt_dev_err(hdev, "urb %p submission failed (%d)",
918 urb, -err);
5e23b923 919 usb_unanchor_urb(urb);
5e23b923
MH		 920 }
921
922 usb_free_urb(urb);
923
924 return err;
925}
926
9bfa35fe
MH		 927static void btusb_isoc_complete(struct urb *urb)
928{
929 struct hci_dev *hdev = urb->context;
155961e8 930 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 931 int i, err;
932
89e7533d
MH		 933 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
934 urb->actual_length);
9bfa35fe
MH		 935
936 if (!test_bit(HCI_RUNNING, &hdev->flags))
937 return;
938
939 if (urb->status == 0) {
940 for (i = 0; i < urb->number_of_packets; i++) {
941 unsigned int offset = urb->iso_frame_desc[i].offset;
942 unsigned int length = urb->iso_frame_desc[i].actual_length;
943
944 if (urb->iso_frame_desc[i].status)
945 continue;
946
947 hdev->stat.byte_rx += length;
948
1ffa4ad0
MH		 949 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
950 length) < 0) {
2064ee33 951 bt_dev_err(hdev, "corrupted SCO packet");
9bfa35fe
MH		 952 hdev->stat.err_rx++;
953 }
954 }
85560c4a
CC		 955 } else if (urb->status == -ENOENT) {
956 /* Avoid suspend failed when usb_kill_urb */
957 return;
9bfa35fe
MH		 958 }
959
960 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
961 return;
962
963 usb_anchor_urb(urb, &data->isoc_anchor);
964
965 err = usb_submit_urb(urb, GFP_ATOMIC);
966 if (err < 0) {
4935f1c1 967 /* -EPERM: urb is being killed;
d98422cb
DR		 968 * -ENODEV: device got disconnected
969 */
4935f1c1 970 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 971 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
972 urb, -err);
9bfa35fe
MH		 973 usb_unanchor_urb(urb);
974 }
975}
976
42b16b3f 977static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 978{
979 int i, offset = 0;
980
981 BT_DBG("len %d mtu %d", len, mtu);
982
983 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
984 i++, offset += mtu, len -= mtu) {
985 urb->iso_frame_desc[i].offset = offset;
986 urb->iso_frame_desc[i].length = mtu;
987 }
988
989 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
990 urb->iso_frame_desc[i].offset = offset;
991 urb->iso_frame_desc[i].length = len;
992 i++;
993 }
994
995 urb->number_of_packets = i;
996}
997
2eda66f4 998static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 999{
155961e8 1000 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1001 struct urb *urb;
1002 unsigned char *buf;
1003 unsigned int pipe;
1004 int err, size;
1005
1006 BT_DBG("%s", hdev->name);
1007
1008 if (!data->isoc_rx_ep)
1009 return -ENODEV;
1010
2eda66f4 1011 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 1012 if (!urb)
1013 return -ENOMEM;
1014
1015 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1016 BTUSB_MAX_ISOC_FRAMES;
1017
2eda66f4 1018 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 1019 if (!buf) {
1020 usb_free_urb(urb);
1021 return -ENOMEM;
1022 }
1023
1024 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1025
fa0fb93f 1026 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 1027 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 1028
89e7533d 1029 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 1030
1031 __fill_isoc_descriptor(urb, size,
89e7533d 1032 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 1033
1034 usb_anchor_urb(urb, &data->isoc_anchor);
1035
2eda66f4 1036 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 1037 if (err < 0) {
d4b8d1c9 1038 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1039 bt_dev_err(hdev, "urb %p submission failed (%d)",
1040 urb, -err);
9bfa35fe 1041 usb_unanchor_urb(urb);
9bfa35fe
MH		 1042 }
1043
1044 usb_free_urb(urb);
1045
1046 return err;
1047}
1048
9d08f504
MH		 1049static void btusb_diag_complete(struct urb *urb)
1050{
1051 struct hci_dev *hdev = urb->context;
1052 struct btusb_data *data = hci_get_drvdata(hdev);
1053 int err;
1054
1055 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1056 urb->actual_length);
1057
1058 if (urb->status == 0) {
1059 struct sk_buff *skb;
1060
1061 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1062 if (skb) {
59ae1d12
JB		 1063 skb_put_data(skb, urb->transfer_buffer,
1064 urb->actual_length);
9d08f504
MH		 1065 hci_recv_diag(hdev, skb);
1066 }
1067 } else if (urb->status == -ENOENT) {
1068 /* Avoid suspend failed when usb_kill_urb */
1069 return;
1070 }
1071
1072 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1073 return;
1074
1075 usb_anchor_urb(urb, &data->diag_anchor);
1076 usb_mark_last_busy(data->udev);
1077
1078 err = usb_submit_urb(urb, GFP_ATOMIC);
1079 if (err < 0) {
1080 /* -EPERM: urb is being killed;
d98422cb
DR		 1081 * -ENODEV: device got disconnected
1082 */
9d08f504 1083 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1084 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1085 urb, -err);
9d08f504
MH		 1086 usb_unanchor_urb(urb);
1087 }
1088}
1089
1090static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1091{
1092 struct btusb_data *data = hci_get_drvdata(hdev);
1093 struct urb *urb;
1094 unsigned char *buf;
1095 unsigned int pipe;
1096 int err, size = HCI_MAX_FRAME_SIZE;
1097
1098 BT_DBG("%s", hdev->name);
1099
1100 if (!data->diag_rx_ep)
1101 return -ENODEV;
1102
1103 urb = usb_alloc_urb(0, mem_flags);
1104 if (!urb)
1105 return -ENOMEM;
1106
1107 buf = kmalloc(size, mem_flags);
1108 if (!buf) {
1109 usb_free_urb(urb);
1110 return -ENOMEM;
1111 }
1112
1113 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1114
1115 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1116 btusb_diag_complete, hdev);
1117
1118 urb->transfer_flags |= URB_FREE_BUFFER;
1119
1120 usb_mark_last_busy(data->udev);
1121 usb_anchor_urb(urb, &data->diag_anchor);
1122
1123 err = usb_submit_urb(urb, mem_flags);
1124 if (err < 0) {
1125 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1126 bt_dev_err(hdev, "urb %p submission failed (%d)",
1127 urb, -err);
9d08f504
MH		 1128 usb_unanchor_urb(urb);
1129 }
1130
1131 usb_free_urb(urb);
1132
1133 return err;
1134}
1135
5e23b923 1136static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 1137{
1138 struct sk_buff *skb = urb->context;
89e7533d 1139 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 1140 struct btusb_data *data = hci_get_drvdata(hdev);
a5e50d5b 1141 unsigned long flags;
7bee549e 1142
89e7533d
MH		 1143 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1144 urb->actual_length);
7bee549e
ON		 1145
1146 if (!test_bit(HCI_RUNNING, &hdev->flags))
1147 goto done;
1148
1149 if (!urb->status)
1150 hdev->stat.byte_tx += urb->transfer_buffer_length;
1151 else
1152 hdev->stat.err_tx++;
1153
1154done:
a5e50d5b 1155 spin_lock_irqsave(&data->txlock, flags);
7bee549e 1156 data->tx_in_flight--;
a5e50d5b 1157 spin_unlock_irqrestore(&data->txlock, flags);
7bee549e
ON		 1158
1159 kfree(urb->setup_packet);
1160
1161 kfree_skb(skb);
1162}
1163
1164static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1165{
1166 struct sk_buff *skb = urb->context;
89e7533d 1167 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1168
89e7533d
MH		 1169 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1170 urb->actual_length);
5e23b923
MH		 1171
1172 if (!test_bit(HCI_RUNNING, &hdev->flags))
1173 goto done;
1174
1175 if (!urb->status)
1176 hdev->stat.byte_tx += urb->transfer_buffer_length;
1177 else
1178 hdev->stat.err_tx++;
1179
1180done:
1181 kfree(urb->setup_packet);
1182
1183 kfree_skb(skb);
1184}
1185
1186static int btusb_open(struct hci_dev *hdev)
1187{
155961e8 1188 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1189 int err;
1190
1191 BT_DBG("%s", hdev->name);
1192
c7e163fe
EH		 1193 err = usb_autopm_get_interface(data->intf);
1194 if (err < 0)
1195 return err;
1196
ace31982
KBYT		 1197 /* Patching USB firmware files prior to starting any URBs of HCI path
1198 * It is more safe to use USB bulk channel for downloading USB patch
1199 */
1200 if (data->setup_on_usb) {
1201 err = data->setup_on_usb(hdev);
eb50042f 1202 if (err < 0)
ace31982
KBYT		 1203 return err;
1204 }
1205
7bee549e
ON		 1206 data->intf->needs_remote_wakeup = 1;
1207
9e45524a
AL		 1208 /* Disable device remote wakeup when host is suspended
1209 * For Realtek chips, global suspend without
1210 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1211 */
1212 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1213 device_wakeup_disable(&data->udev->dev);
1214
5e23b923 1215 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1216 goto done;
5e23b923 1217
2eda66f4 1218 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1219 if (err < 0)
1220 goto failed;
1221
1222 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1223 if (err < 0) {
43c2e57f
MH		 1224 usb_kill_anchored_urbs(&data->intr_anchor);
1225 goto failed;
5e23b923
MH		 1226 }
1227
43c2e57f
MH		 1228 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1229 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1230
9d08f504
MH		 1231 if (data->diag) {
1232 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1233 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1234 }
1235
7bee549e
ON		 1236done:
1237 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1238 return 0;
1239
1240failed:
1241 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1242 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1243 return err;
1244}
1245
7bee549e
ON		 1246static void btusb_stop_traffic(struct btusb_data *data)
1247{
1248 usb_kill_anchored_urbs(&data->intr_anchor);
1249 usb_kill_anchored_urbs(&data->bulk_anchor);
1250 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1251 usb_kill_anchored_urbs(&data->diag_anchor);
a1c49c43 1252 usb_kill_anchored_urbs(&data->ctrl_anchor);
7bee549e
ON		 1253}
1254
5e23b923
MH		 1255static int btusb_close(struct hci_dev *hdev)
1256{
155961e8 1257 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1258 int err;
5e23b923
MH		 1259
1260 BT_DBG("%s", hdev->name);
1261
e8c3c3d2 1262 cancel_work_sync(&data->work);
404291ac 1263 cancel_work_sync(&data->waker);
e8c3c3d2 1264
9bfa35fe 1265 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1266 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1267 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1268 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1269
1270 btusb_stop_traffic(data);
803b5836
MH		 1271 btusb_free_frags(data);
1272
7bee549e
ON		 1273 err = usb_autopm_get_interface(data->intf);
1274 if (err < 0)
7b8e2c1d 1275 goto failed;
7bee549e
ON		 1276
1277 data->intf->needs_remote_wakeup = 0;
9e45524a
AL		 1278
1279 /* Enable remote wake up for auto-suspend */
1280 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1281 data->intf->needs_remote_wakeup = 1;
1282
7bee549e 1283 usb_autopm_put_interface(data->intf);
5e23b923 1284
7b8e2c1d
ON		 1285failed:
1286 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1287 return 0;
1288}
1289
1290static int btusb_flush(struct hci_dev *hdev)
1291{
155961e8 1292 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1293
1294 BT_DBG("%s", hdev->name);
1295
1296 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1297 btusb_free_frags(data);
5e23b923
MH		 1298
1299 return 0;
1300}
1301
047b2ec8 1302static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1303{
155961e8 1304 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1305 struct usb_ctrlrequest *dr;
1306 struct urb *urb;
1307 unsigned int pipe;
5e23b923 1308
047b2ec8
MH		 1309 urb = usb_alloc_urb(0, GFP_KERNEL);
1310 if (!urb)
1311 return ERR_PTR(-ENOMEM);
5e23b923 1312
047b2ec8
MH		 1313 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1314 if (!dr) {
1315 usb_free_urb(urb);
1316 return ERR_PTR(-ENOMEM);
1317 }
5e23b923 1318
047b2ec8 1319 dr->bRequestType = data->cmdreq_type;
893ba544 1320 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1321 dr->wIndex = 0;
1322 dr->wValue = 0;
1323 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1324
047b2ec8 1325 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1326
89e7533d 1327 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1328 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1329
89e7533d 1330 skb->dev = (void *)hdev;
5e23b923 1331
047b2ec8
MH		 1332 return urb;
1333}
5e23b923 1334
047b2ec8
MH		 1335static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1336{
1337 struct btusb_data *data = hci_get_drvdata(hdev);
1338 struct urb *urb;
1339 unsigned int pipe;
5e23b923 1340
047b2ec8
MH		 1341 if (!data->bulk_tx_ep)
1342 return ERR_PTR(-ENODEV);
9bfa35fe 1343
047b2ec8
MH		 1344 urb = usb_alloc_urb(0, GFP_KERNEL);
1345 if (!urb)
1346 return ERR_PTR(-ENOMEM);
5e23b923 1347
047b2ec8 1348 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1349
047b2ec8
MH		 1350 usb_fill_bulk_urb(urb, data->udev, pipe,
1351 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1352
89e7533d 1353 skb->dev = (void *)hdev;
5e23b923 1354
047b2ec8
MH		 1355 return urb;
1356}
9bfa35fe 1357
047b2ec8
MH		 1358static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1359{
1360 struct btusb_data *data = hci_get_drvdata(hdev);
1361 struct urb *urb;
1362 unsigned int pipe;
9bfa35fe 1363
047b2ec8
MH		 1364 if (!data->isoc_tx_ep)
1365 return ERR_PTR(-ENODEV);
9bfa35fe 1366
047b2ec8
MH		 1367 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1368 if (!urb)
1369 return ERR_PTR(-ENOMEM);
9bfa35fe 1370
047b2ec8 1371 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1372
047b2ec8
MH		 1373 usb_fill_int_urb(urb, data->udev, pipe,
1374 skb->data, skb->len, btusb_isoc_tx_complete,
1375 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1376
047b2ec8 1377 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1378
047b2ec8
MH		 1379 __fill_isoc_descriptor(urb, skb->len,
1380 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1381
89e7533d 1382 skb->dev = (void *)hdev;
047b2ec8
MH		 1383
1384 return urb;
1385}
1386
1387static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1388{
1389 struct btusb_data *data = hci_get_drvdata(hdev);
1390 int err;
7bee549e 1391
5e23b923
MH		 1392 usb_anchor_urb(urb, &data->tx_anchor);
1393
e9753eff 1394 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1395 if (err < 0) {
5a9b80e2 1396 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1397 bt_dev_err(hdev, "urb %p submission failed (%d)",
1398 urb, -err);
5e23b923
MH		 1399 kfree(urb->setup_packet);
1400 usb_unanchor_urb(urb);
7bee549e
ON		 1401 } else {
1402 usb_mark_last_busy(data->udev);
5e23b923
MH		 1403 }
1404
54a8a79c 1405 usb_free_urb(urb);
5e23b923
MH		 1406 return err;
1407}
1408
047b2ec8
MH		 1409static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1410{
1411 struct btusb_data *data = hci_get_drvdata(hdev);
1412 unsigned long flags;
1413 bool suspending;
1414
1415 spin_lock_irqsave(&data->txlock, flags);
1416 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1417 if (!suspending)
1418 data->tx_in_flight++;
1419 spin_unlock_irqrestore(&data->txlock, flags);
1420
1421 if (!suspending)
1422 return submit_tx_urb(hdev, urb);
1423
1424 usb_anchor_urb(urb, &data->deferred);
1425 schedule_work(&data->waker);
1426
1427 usb_free_urb(urb);
1428 return 0;
1429}
1430
1431static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1432{
1433 struct urb *urb;
1434
1435 BT_DBG("%s", hdev->name);
1436
618e8bc2 1437 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1438 case HCI_COMMAND_PKT:
1439 urb = alloc_ctrl_urb(hdev, skb);
1440 if (IS_ERR(urb))
1441 return PTR_ERR(urb);
1442
1443 hdev->stat.cmd_tx++;
1444 return submit_or_queue_tx_urb(hdev, urb);
1445
1446 case HCI_ACLDATA_PKT:
1447 urb = alloc_bulk_urb(hdev, skb);
1448 if (IS_ERR(urb))
1449 return PTR_ERR(urb);
1450
1451 hdev->stat.acl_tx++;
1452 return submit_or_queue_tx_urb(hdev, urb);
1453
1454 case HCI_SCODATA_PKT:
1455 if (hci_conn_num(hdev, SCO_LINK) < 1)
1456 return -ENODEV;
1457
1458 urb = alloc_isoc_urb(hdev, skb);
1459 if (IS_ERR(urb))
1460 return PTR_ERR(urb);
1461
1462 hdev->stat.sco_tx++;
1463 return submit_tx_urb(hdev, urb);
1464 }
1465
1466 return -EILSEQ;
1467}
1468
5e23b923
MH		 1469static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1470{
155961e8 1471 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1472
1473 BT_DBG("%s evt %d", hdev->name, evt);
1474
014f7bc7
MH		 1475 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1476 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1477 schedule_work(&data->work);
a780efa8 1478 }
5e23b923
MH		 1479}
1480
42b16b3f 1481static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1482{
155961e8 1483 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1484 struct usb_interface *intf = data->isoc;
1485 struct usb_endpoint_descriptor *ep_desc;
1486 int i, err;
1487
1488 if (!data->isoc)
1489 return -ENODEV;
1490
459232fc 1491 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
9bfa35fe 1492 if (err < 0) {
2064ee33 1493 bt_dev_err(hdev, "setting interface failed (%d)", -err);
9bfa35fe
MH		 1494 return err;
1495 }
1496
1497 data->isoc_altsetting = altsetting;
1498
1499 data->isoc_tx_ep = NULL;
1500 data->isoc_rx_ep = NULL;
1501
1502 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1503 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1504
1505 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1506 data->isoc_tx_ep = ep_desc;
1507 continue;
1508 }
1509
1510 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1511 data->isoc_rx_ep = ep_desc;
1512 continue;
1513 }
1514 }
1515
1516 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2064ee33 1517 bt_dev_err(hdev, "invalid SCO descriptors");
9bfa35fe
MH		 1518 return -ENODEV;
1519 }
1520
1521 return 0;
1522}
1523
5e23b923
MH		 1524static void btusb_work(struct work_struct *work)
1525{
1526 struct btusb_data *data = container_of(work, struct btusb_data, work);
1527 struct hci_dev *hdev = data->hdev;
f4001d28 1528 int new_alts;
7bee549e 1529 int err;
5e23b923 1530
014f7bc7 1531 if (data->sco_num > 0) {
08b8b6c4 1532 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1533 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1534 if (err < 0) {
1535 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1536 usb_kill_anchored_urbs(&data->isoc_anchor);
1537 return;
1538 }
1539
08b8b6c4 1540 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1541 }
f4001d28
MA		 1542
1543 if (hdev->voice_setting & 0x0020) {
1544 static const int alts[3] = { 2, 4, 5 };
89e7533d 1545
014f7bc7 1546 new_alts = alts[data->sco_num - 1];
f4001d28 1547 } else {
014f7bc7 1548 new_alts = data->sco_num;
f4001d28
MA		 1549 }
1550
1551 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1552 unsigned long flags;
1553
9bfa35fe
MH		 1554 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1555 usb_kill_anchored_urbs(&data->isoc_anchor);
1556
8f9d02f4
KP		 1557 /* When isochronous alternate setting needs to be
1558 * changed, because SCO connection has been added
1559 * or removed, a packet fragment may be left in the
1560 * reassembling state. This could lead to wrongly
1561 * assembled fragments.
1562 *
1563 * Clear outstanding fragment when selecting a new
1564 * alternate setting.
1565 */
f6fc86f2 1566 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1567 kfree_skb(data->sco_skb);
1568 data->sco_skb = NULL;
f6fc86f2 1569 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1570
f4001d28 1571 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1572 return;
1573 }
1574
1575 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1576 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1577 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1578 else
2eda66f4 1579 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1580 }
1581 } else {
1582 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1583 usb_kill_anchored_urbs(&data->isoc_anchor);
1584
1585 __set_isoc_interface(hdev, 0);
08b8b6c4 1586 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1587 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1588 }
1589}
1590
7bee549e
ON		 1591static void btusb_waker(struct work_struct *work)
1592{
1593 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1594 int err;
1595
1596 err = usb_autopm_get_interface(data->intf);
1597 if (err < 0)
1598 return;
1599
1600 usb_autopm_put_interface(data->intf);
1601}
1602
9f8f962c
MH		 1603static int btusb_setup_bcm92035(struct hci_dev *hdev)
1604{
1605 struct sk_buff *skb;
1606 u8 val = 0x00;
1607
1608 BT_DBG("%s", hdev->name);
1609
1610 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1611 if (IS_ERR(skb))
2064ee33 1612 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
9f8f962c
MH		 1613 else
1614 kfree_skb(skb);
1615
1616 return 0;
1617}
1618
81cac64b
MH		 1619static int btusb_setup_csr(struct hci_dev *hdev)
1620{
1621 struct hci_rp_read_local_version *rp;
1622 struct sk_buff *skb;
81cac64b
MH		 1623
1624 BT_DBG("%s", hdev->name);
1625
7cd84d72
MH		 1626 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1627 HCI_INIT_TIMEOUT);
1628 if (IS_ERR(skb)) {
1629 int err = PTR_ERR(skb);
2064ee33 1630 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
7cd84d72
MH		 1631 return err;
1632 }
1633
1634 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33 1635 bt_dev_err(hdev, "CSR: Local version length mismatch");
7cd84d72
MH		 1636 kfree_skb(skb);
1637 return -EIO;
1638 }
81cac64b 1639
89e7533d 1640 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1641
6cafcd95
JH		 1642 /* Detect controllers which aren't real CSR ones. */
1643 if (le16_to_cpu(rp->manufacturer) != 10 ||
1644 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1645 /* Clear the reset quirk since this is not an actual
1646 * early Bluetooth 1.1 device from CSR.
1647 */
1648 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1649
9641d343
MH		 1650 /* These fake CSR controllers have all a broken
1651 * stored link key handling and so just disable it.
1652 */
1653 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1654 }
81cac64b
MH		 1655
1656 kfree_skb(skb);
1657
9641d343 1658 return 0;
81cac64b
MH		 1659}
1660
dffd30ee 1661static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1662 struct intel_version *ver)
dffd30ee
THJA		 1663{
1664 const struct firmware *fw;
1665 char fwname[64];
1666 int ret;
1667
1668 snprintf(fwname, sizeof(fwname),
1669 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1670 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1671 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1672 ver->fw_build_ww, ver->fw_build_yy);
1673
1674 ret = request_firmware(&fw, fwname, &hdev->dev);
1675 if (ret < 0) {
1676 if (ret == -EINVAL) {
85418fef
MH		 1677 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1678 ret);
dffd30ee
THJA		 1679 return NULL;
1680 }
1681
85418fef
MH		 1682 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1683 fwname, ret);
dffd30ee
THJA		 1684
1685 /* If the correct firmware patch file is not found, use the
1686 * default firmware patch file instead
1687 */
1688 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1689 ver->hw_platform, ver->hw_variant);
1690 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
85418fef
MH		 1691 bt_dev_err(hdev, "failed to open default fw file: %s",
1692 fwname);
dffd30ee
THJA		 1693 return NULL;
1694 }
1695 }
1696
2064ee33 1697 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
dffd30ee
THJA		 1698
1699 return fw;
1700}
1701
1702static int btusb_setup_intel_patching(struct hci_dev *hdev,
1703 const struct firmware *fw,
1704 const u8 **fw_ptr, int *disable_patch)
1705{
1706 struct sk_buff *skb;
1707 struct hci_command_hdr *cmd;
1708 const u8 *cmd_param;
1709 struct hci_event_hdr *evt = NULL;
1710 const u8 *evt_param = NULL;
1711 int remain = fw->size - (*fw_ptr - fw->data);
1712
1713 /* The first byte indicates the types of the patch command or event.
1714 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1715 * in the current firmware buffer doesn't start with 0x01 or
1716 * the size of remain buffer is smaller than HCI command header,
1717 * the firmware file is corrupted and it should stop the patching
1718 * process.
1719 */
1720 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
85418fef 1721 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
dffd30ee
THJA		 1722 return -EINVAL;
1723 }
1724 (*fw_ptr)++;
1725 remain--;
1726
1727 cmd = (struct hci_command_hdr *)(*fw_ptr);
1728 *fw_ptr += sizeof(*cmd);
1729 remain -= sizeof(*cmd);
1730
1731 /* Ensure that the remain firmware data is long enough than the length
1732 * of command parameter. If not, the firmware file is corrupted.
1733 */
1734 if (remain < cmd->plen) {
85418fef 1735 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
dffd30ee
THJA		 1736 return -EFAULT;
1737 }
1738
1739 /* If there is a command that loads a patch in the firmware
1740 * file, then enable the patch upon success, otherwise just
1741 * disable the manufacturer mode, for example patch activation
1742 * is not required when the default firmware patch file is used
1743 * because there are no patch data to load.
1744 */
1745 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1746 *disable_patch = 0;
1747
1748 cmd_param = *fw_ptr;
1749 *fw_ptr += cmd->plen;
1750 remain -= cmd->plen;
1751
1752 /* This reads the expected events when the above command is sent to the
1753 * device. Some vendor commands expects more than one events, for
1754 * example command status event followed by vendor specific event.
1755 * For this case, it only keeps the last expected event. so the command
1756 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1757 * last expected event.
1758 */
1759 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1760 (*fw_ptr)++;
1761 remain--;
1762
1763 evt = (struct hci_event_hdr *)(*fw_ptr);
1764 *fw_ptr += sizeof(*evt);
1765 remain -= sizeof(*evt);
1766
1767 if (remain < evt->plen) {
85418fef 1768 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
dffd30ee
THJA		 1769 return -EFAULT;
1770 }
1771
1772 evt_param = *fw_ptr;
1773 *fw_ptr += evt->plen;
1774 remain -= evt->plen;
1775 }
1776
1777 /* Every HCI commands in the firmware file has its correspond event.
1778 * If event is not found or remain is smaller than zero, the firmware
1779 * file is corrupted.
1780 */
1781 if (!evt || !evt_param || remain < 0) {
85418fef 1782 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
dffd30ee
THJA		 1783 return -EFAULT;
1784 }
1785
1786 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1787 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1788 if (IS_ERR(skb)) {
85418fef
MH		 1789 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1790 cmd->opcode, PTR_ERR(skb));
d9c78e97 1791 return PTR_ERR(skb);
dffd30ee
THJA		 1792 }
1793
1794 /* It ensures that the returned event matches the event data read from
1795 * the firmware file. At fist, it checks the length and then
1796 * the contents of the event.
1797 */
1798 if (skb->len != evt->plen) {
85418fef
MH		 1799 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1800 le16_to_cpu(cmd->opcode));
dffd30ee
THJA		 1801 kfree_skb(skb);
1802 return -EFAULT;
1803 }
1804
1805 if (memcmp(skb->data, evt_param, evt->plen)) {
85418fef
MH		 1806 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1807 le16_to_cpu(cmd->opcode));
dffd30ee
THJA		 1808 kfree_skb(skb);
1809 return -EFAULT;
1810 }
1811 kfree_skb(skb);
1812
1813 return 0;
1814}
1815
1816static int btusb_setup_intel(struct hci_dev *hdev)
1817{
1818 struct sk_buff *skb;
1819 const struct firmware *fw;
1820 const u8 *fw_ptr;
28dc4b92 1821 int disable_patch, err;
6c483de1 1822 struct intel_version ver;
dffd30ee 1823
dffd30ee
THJA		 1824 BT_DBG("%s", hdev->name);
1825
1826 /* The controller has a bug with the first HCI command sent to it
1827 * returning number of completed commands as zero. This would stall the
1828 * command processing in the Bluetooth core.
1829 *
1830 * As a workaround, send HCI Reset command first which will reset the
1831 * number of completed commands and allow normal command processing
1832 * from now on.
1833 */
1834 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1835 if (IS_ERR(skb)) {
85418fef
MH		 1836 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1837 PTR_ERR(skb));
d9c78e97 1838 return PTR_ERR(skb);
dffd30ee
THJA		 1839 }
1840 kfree_skb(skb);
1841
1842 /* Read Intel specific controller version first to allow selection of
1843 * which firmware file to load.
1844 *
1845 * The returned information are hardware variant and revision plus
1846 * firmware variant, revision and build number.
1847 */
6c483de1
LP		 1848 err = btintel_read_version(hdev, &ver);
1849 if (err)
1850 return err;
dffd30ee 1851
2064ee33
MH		 1852 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1853 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1854 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1855 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1856
1857 /* fw_patch_num indicates the version of patch the device currently
1858 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1859 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1860 */
6c483de1 1861 if (ver.fw_patch_num) {
2064ee33
MH		 1862 bt_dev_info(hdev, "Intel device is already patched. "
1863 "patch num: %02x", ver.fw_patch_num);
213445b2 1864 goto complete;
dffd30ee
THJA		 1865 }
1866
1867 /* Opens the firmware patch file based on the firmware version read
1868 * from the controller. If it fails to open the matching firmware
1869 * patch file, it tries to open the default firmware patch file.
1870 * If no patch file is found, allow the device to operate without
1871 * a patch.
1872 */
6c483de1
LP		 1873 fw = btusb_setup_intel_get_fw(hdev, &ver);
1874 if (!fw)
213445b2 1875 goto complete;
dffd30ee
THJA		 1876 fw_ptr = fw->data;
1877
28dc4b92 1878 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1879 * Only while this mode is enabled, the driver can download the
1880 * firmware patch data and configuration parameters.
1881 */
28dc4b92
LP		 1882 err = btintel_enter_mfg(hdev);
1883 if (err) {
dffd30ee 1884 release_firmware(fw);
28dc4b92 1885 return err;
dffd30ee
THJA		 1886 }
1887
dffd30ee
THJA		 1888 disable_patch = 1;
1889
1890 /* The firmware data file consists of list of Intel specific HCI
1891 * commands and its expected events. The first byte indicates the
1892 * type of the message, either HCI command or HCI event.
1893 *
1894 * It reads the command and its expected event from the firmware file,
1895 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1896 * the returned event is compared with the event read from the firmware
1897 * file and it will continue until all the messages are downloaded to
1898 * the controller.
1899 *
1900 * Once the firmware patching is completed successfully,
1901 * the manufacturer mode is disabled with reset and activating the
1902 * downloaded patch.
1903 *
1904 * If the firmware patching fails, the manufacturer mode is
1905 * disabled with reset and deactivating the patch.
1906 *
1907 * If the default patch file is used, no reset is done when disabling
1908 * the manufacturer.
1909 */
1910 while (fw->size > fw_ptr - fw->data) {
1911 int ret;
1912
1913 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1914 &disable_patch);
1915 if (ret < 0)
1916 goto exit_mfg_deactivate;
1917 }
1918
1919 release_firmware(fw);
1920
1921 if (disable_patch)
1922 goto exit_mfg_disable;
1923
1924 /* Patching completed successfully and disable the manufacturer mode
1925 * with reset and activate the downloaded firmware patches.
1926 */
28dc4b92
LP		 1927 err = btintel_exit_mfg(hdev, true, true);
1928 if (err)
1929 return err;
dffd30ee 1930
2064ee33 1931 bt_dev_info(hdev, "Intel firmware patch completed and activated");
dffd30ee 1932
213445b2 1933 goto complete;
dffd30ee
THJA		 1934
1935exit_mfg_disable:
1936 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1937 err = btintel_exit_mfg(hdev, false, false);
1938 if (err)
1939 return err;
dffd30ee 1940
2064ee33 1941 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1942
213445b2 1943 goto complete;
dffd30ee
THJA		 1944
1945exit_mfg_deactivate:
1946 release_firmware(fw);
1947
1948 /* Patching failed. Disable the manufacturer mode with reset and
1949 * deactivate the downloaded firmware patches.
1950 */
28dc4b92
LP		 1951 err = btintel_exit_mfg(hdev, true, false);
1952 if (err)
1953 return err;
dffd30ee 1954
2064ee33 1955 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1956
213445b2
MH		 1957complete:
1958 /* Set the event mask for Intel specific vendor events. This enables
1959 * a few extra events that are useful during general operation.
1960 */
1961 btintel_set_event_mask_mfg(hdev, false);
1962
4185a0f5 1963 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1964 return 0;
1965}
1966
cda0dd78
MH		 1967static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1968{
1969 struct sk_buff *skb;
1970 struct hci_event_hdr *hdr;
1971 struct hci_ev_cmd_complete *evt;
1972
cf07e341 1973 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
cda0dd78
MH		 1974 if (!skb)
1975 return -ENOMEM;
1976
4df864c1 1977 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1978 hdr->evt = HCI_EV_CMD_COMPLETE;
1979 hdr->plen = sizeof(*evt) + 1;
1980
4df864c1 1981 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1982 evt->ncmd = 0x01;
1983 evt->opcode = cpu_to_le16(opcode);
1984
634fef61 1985 skb_put_u8(skb, 0x00);
cda0dd78 1986
618e8bc2 1987 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1988
1989 return hci_recv_frame(hdev, skb);
1990}
1991
1992static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1993 int count)
1994{
1995 /* When the device is in bootloader mode, then it can send
1996 * events via the bulk endpoint. These events are treated the
1997 * same way as the ones received from the interrupt endpoint.
1998 */
1999 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2000 return btusb_recv_intr(data, buffer, count);
2001
2002 return btusb_recv_bulk(data, buffer, count);
2003}
2004
ccd6da2a
MH		 2005static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2006 unsigned int len)
2007{
2008 const struct intel_bootup *evt = ptr;
2009
2010 if (len != sizeof(*evt))
2011 return;
2012
dff6d593 2013 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
ccd6da2a 2014 wake_up_bit(&data->flags, BTUSB_BOOTING);
ccd6da2a
MH		 2015}
2016
2017static void btusb_intel_secure_send_result(struct btusb_data *data,
2018 const void *ptr, unsigned int len)
2019{
2020 const struct intel_secure_send_result *evt = ptr;
2021
2022 if (len != sizeof(*evt))
2023 return;
2024
2025 if (evt->result)
2026 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2027
2028 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
dff6d593 2029 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
ccd6da2a 2030 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
ccd6da2a
MH		 2031}
2032
cda0dd78
MH		 2033static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2034{
2035 struct btusb_data *data = hci_get_drvdata(hdev);
2036
2037 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2038 struct hci_event_hdr *hdr = (void *)skb->data;
2039
ccd6da2a
MH		 2040 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2041 hdr->plen > 0) {
2042 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2043 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2044
2045 switch (skb->data[2]) {
2046 case 0x02:
2047 /* When switching to the operational firmware
2048 * the device sends a vendor specific event
2049 * indicating that the bootup completed.
2050 */
2051 btusb_intel_bootup(data, ptr, len);
2052 break;
2053 case 0x06:
2054 /* When the firmware loading completes the
2055 * device sends out a vendor specific event
2056 * indicating the result of the firmware
2057 * loading.
2058 */
2059 btusb_intel_secure_send_result(data, ptr, len);
2060 break;
fad70972 2061 }
cda0dd78
MH		 2062 }
2063 }
2064
2065 return hci_recv_frame(hdev, skb);
2066}
2067
2068static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2069{
2070 struct btusb_data *data = hci_get_drvdata(hdev);
2071 struct urb *urb;
2072
2073 BT_DBG("%s", hdev->name);
2074
618e8bc2 2075 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 2076 case HCI_COMMAND_PKT:
2077 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2078 struct hci_command_hdr *cmd = (void *)skb->data;
2079 __u16 opcode = le16_to_cpu(cmd->opcode);
2080
2081 /* When in bootloader mode and the command 0xfc09
2082 * is received, it needs to be send down the
2083 * bulk endpoint. So allocate a bulk URB instead.
2084 */
2085 if (opcode == 0xfc09)
2086 urb = alloc_bulk_urb(hdev, skb);
2087 else
2088 urb = alloc_ctrl_urb(hdev, skb);
2089
2090 /* When the 0xfc01 command is issued to boot into
2091 * the operational firmware, it will actually not
2092 * send a command complete event. To keep the flow
2093 * control working inject that event here.
2094 */
2095 if (opcode == 0xfc01)
2096 inject_cmd_complete(hdev, opcode);
2097 } else {
2098 urb = alloc_ctrl_urb(hdev, skb);
2099 }
2100 if (IS_ERR(urb))
2101 return PTR_ERR(urb);
2102
2103 hdev->stat.cmd_tx++;
2104 return submit_or_queue_tx_urb(hdev, urb);
2105
2106 case HCI_ACLDATA_PKT:
2107 urb = alloc_bulk_urb(hdev, skb);
2108 if (IS_ERR(urb))
2109 return PTR_ERR(urb);
2110
2111 hdev->stat.acl_tx++;
2112 return submit_or_queue_tx_urb(hdev, urb);
2113
2114 case HCI_SCODATA_PKT:
2115 if (hci_conn_num(hdev, SCO_LINK) < 1)
2116 return -ENODEV;
2117
2118 urb = alloc_isoc_urb(hdev, skb);
2119 if (IS_ERR(urb))
2120 return PTR_ERR(urb);
2121
2122 hdev->stat.sco_tx++;
2123 return submit_tx_urb(hdev, urb);
2124 }
2125
2126 return -EILSEQ;
2127}
2128
2da711bc
RH		 2129static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2130 struct intel_boot_params *params,
2131 char *fw_name, size_t len,
2132 const char *suffix)
2133{
2134 switch (ver->hw_variant) {
2135 case 0x0b: /* SfP */
2136 case 0x0c: /* WsP */
2137 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2138 le16_to_cpu(ver->hw_variant),
2139 le16_to_cpu(params->dev_revid),
2140 suffix);
2141 break;
2142 case 0x11: /* JfP */
2143 case 0x12: /* ThP */
2144 case 0x13: /* HrP */
2145 case 0x14: /* CcP */
2146 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2147 le16_to_cpu(ver->hw_variant),
2148 le16_to_cpu(ver->hw_revision),
2149 le16_to_cpu(ver->fw_revision),
2150 suffix);
2151 break;
2152 default:
2153 return false;
2154 }
2155 return true;
2156}
2157
cda0dd78
MH		 2158static int btusb_setup_intel_new(struct hci_dev *hdev)
2159{
cda0dd78 2160 struct btusb_data *data = hci_get_drvdata(hdev);
6c483de1 2161 struct intel_version ver;
faf174d2 2162 struct intel_boot_params params;
cda0dd78 2163 const struct firmware *fw;
e5889af6 2164 u32 boot_param;
cda0dd78
MH		 2165 char fwname[64];
2166 ktime_t calltime, delta, rettime;
2167 unsigned long long duration;
2168 int err;
2169
2170 BT_DBG("%s", hdev->name);
2171
04d729b8
THJA		 2172 /* Set the default boot parameter to 0x0 and it is updated to
2173 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2174 * command while downloading the firmware.
2175 */
2176 boot_param = 0x00000000;
e5889af6 2177
cda0dd78
MH		 2178 calltime = ktime_get();
2179
2180 /* Read the Intel version information to determine if the device
2181 * is in bootloader mode or if it already has operational firmware
2182 * loaded.
2183 */
6c483de1
LP		 2184 err = btintel_read_version(hdev, &ver);
2185 if (err)
2186 return err;
cda0dd78
MH		 2187
2188 /* The hardware platform number has a fixed value of 0x37 and
2189 * for now only accept this single value.
2190 */
6c483de1 2191 if (ver.hw_platform != 0x37) {
85418fef
MH		 2192 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2193 ver.hw_platform);
cda0dd78
MH		 2194 return -EINVAL;
2195 }
2196
9268834b
THJA		 2197 /* Check for supported iBT hardware variants of this firmware
2198 * loading method.
a0af53b5
THJA		 2199 *
2200 * This check has been put in place to ensure correct forward
2201 * compatibility options when newer hardware variants come along.
cda0dd78 2202 */
9268834b
THJA		 2203 switch (ver.hw_variant) {
2204 case 0x0b: /* SfP */
2205 case 0x0c: /* WsP */
86a6129a 2206 case 0x11: /* JfP */
de766142 2207 case 0x12: /* ThP */
1ce0cec1 2208 case 0x13: /* HrP */
2da711bc 2209 case 0x14: /* CcP */
9268834b
THJA		 2210 break;
2211 default:
85418fef
MH		 2212 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2213 ver.hw_variant);
cda0dd78
MH		 2214 return -EINVAL;
2215 }
2216
6c483de1 2217 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2218
2219 /* The firmware variant determines if the device is in bootloader
2220 * mode or is running operational firmware. The value 0x06 identifies
2221 * the bootloader and the value 0x23 identifies the operational
2222 * firmware.
2223 *
2224 * When the operational firmware is already present, then only
2225 * the check for valid Bluetooth device address is needed. This
2226 * determines if the device will be added as configured or
2227 * unconfigured controller.
2228 *
2229 * It is not possible to use the Secure Boot Parameters in this
2230 * case since that command is only available in bootloader mode.
2231 */
6c483de1 2232 if (ver.fw_variant == 0x23) {
cda0dd78 2233 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2234 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2235 return 0;
2236 }
2237
2238 /* If the device is not in bootloader mode, then the only possible
2239 * choice is to return an error and abort the device initialization.
2240 */
6c483de1 2241 if (ver.fw_variant != 0x06) {
85418fef
MH		 2242 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2243 ver.fw_variant);
cda0dd78
MH		 2244 return -ENODEV;
2245 }
2246
cda0dd78
MH		 2247 /* Read the secure boot parameters to identify the operating
2248 * details of the bootloader.
2249 */
faf174d2
THJA		 2250 err = btintel_read_boot_params(hdev, &params);
2251 if (err)
2252 return err;
cda0dd78
MH		 2253
2254 /* It is required that every single firmware fragment is acknowledged
2255 * with a command complete event. If the boot parameters indicate
2256 * that this bootloader does not send them, then abort the setup.
2257 */
faf174d2 2258 if (params.limited_cce != 0x00) {
85418fef
MH		 2259 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2260 params.limited_cce);
cda0dd78
MH		 2261 return -EINVAL;
2262 }
2263
2264 /* If the OTP has no valid Bluetooth device address, then there will
2265 * also be no valid address for the operational firmware.
2266 */
faf174d2 2267 if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
2064ee33 2268 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2269 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2270 }
2271
2272 /* With this Intel bootloader only the hardware variant and device
af3715e5
J		 2273 * revision information are used to select the right firmware for SfP
2274 * and WsP.
cda0dd78 2275 *
230b04ac
THJA		 2276 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2277 *
2278 * Currently the supported hardware variants are:
2279 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2280 * 12 (0x0c) for iBT3.5 (WsP)
af3715e5
J		 2281 *
2282 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2283 * variant, HW revision and FW revision, as these are dependent on CNVi
2284 * and RF Combination.
2285 *
86a6129a
THJA		 2286 * 17 (0x11) for iBT3.5 (JfP)
2287 * 18 (0x12) for iBT3.5 (ThP)
af3715e5
J		 2288 *
2289 * The firmware file name for these will be
2290 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2291 *
cda0dd78 2292 */
2da711bc
RH		 2293 err = btusb_setup_intel_new_get_fw_name(&ver, &params, fwname,
2294 sizeof(fwname), "sfi");
2295 if (!err) {
85418fef 2296 bt_dev_err(hdev, "Unsupported Intel firmware naming");
af3715e5
J		 2297 return -EINVAL;
2298 }
cda0dd78
MH		 2299
2300 err = request_firmware(&fw, fwname, &hdev->dev);
2301 if (err < 0) {
85418fef 2302 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
cda0dd78
MH		 2303 return err;
2304 }
2305
2064ee33 2306 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2307
52cc9168
THJA		 2308 /* Save the DDC file name for later use to apply once the firmware
2309 * downloading is done.
2310 */
2da711bc
RH		 2311 err = btusb_setup_intel_new_get_fw_name(&ver, &params, fwname,
2312 sizeof(fwname), "ddc");
2313 if (!err) {
85418fef 2314 bt_dev_err(hdev, "Unsupported Intel firmware naming");
af3715e5
J		 2315 return -EINVAL;
2316 }
52cc9168 2317
cda0dd78 2318 if (fw->size < 644) {
85418fef
MH		 2319 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2320 fw->size);
cda0dd78
MH		 2321 err = -EBADF;
2322 goto done;
2323 }
2324
2325 set_bit(BTUSB_DOWNLOADING, &data->flags);
2326
fbbe83c5
THJA		 2327 /* Start firmware downloading and get boot parameter */
2328 err = btintel_download_firmware(hdev, fw, &boot_param);
2329 if (err < 0)
cda0dd78 2330 goto done;
cda0dd78 2331
ce6bb929
MH		 2332 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2333
2064ee33 2334 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2335
cda0dd78
MH		 2336 /* Before switching the device into operational mode and with that
2337 * booting the loaded firmware, wait for the bootloader notification
2338 * that all fragments have been successfully received.
2339 *
a087a98e
JH		 2340 * When the event processing receives the notification, then the
2341 * BTUSB_DOWNLOADING flag will be cleared.
2342 *
2343 * The firmware loading should not take longer than 5 seconds
2344 * and thus just timeout if that happens and fail the setup
2345 * of this device.
cda0dd78 2346 */
129a7693
JH		 2347 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2348 TASK_INTERRUPTIBLE,
2349 msecs_to_jiffies(5000));
f0a70a04 2350 if (err == -EINTR) {
85418fef 2351 bt_dev_err(hdev, "Firmware loading interrupted");
a087a98e
JH		 2352 goto done;
2353 }
cda0dd78 2354
a087a98e 2355 if (err) {
85418fef 2356 bt_dev_err(hdev, "Firmware loading timeout");
a087a98e
JH		 2357 err = -ETIMEDOUT;
2358 goto done;
cda0dd78
MH		 2359 }
2360
2361 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
85418fef 2362 bt_dev_err(hdev, "Firmware loading failed");
cda0dd78
MH		 2363 err = -ENOEXEC;
2364 goto done;
2365 }
2366
2367 rettime = ktime_get();
2368 delta = ktime_sub(rettime, calltime);
2369 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2370
2064ee33 2371 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2372
2373done:
2374 release_firmware(fw);
2375
2376 if (err < 0)
2377 return err;
2378
2379 calltime = ktime_get();
2380
2381 set_bit(BTUSB_BOOTING, &data->flags);
2382
e5889af6
THJA		 2383 err = btintel_send_intel_reset(hdev, boot_param);
2384 if (err)
2385 return err;
cda0dd78
MH		 2386
2387 /* The bootloader will not indicate when the device is ready. This
2388 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2389 *
2390 * Booting into operational firmware should not take longer than
2391 * 1 second. However if that happens, then just fail the setup
2392 * since something went wrong.
cda0dd78 2393 */
2064ee33 2394 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2395
129a7693
JH		 2396 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2397 TASK_INTERRUPTIBLE,
2398 msecs_to_jiffies(1000));
cda0dd78 2399
f0a70a04 2400 if (err == -EINTR) {
85418fef 2401 bt_dev_err(hdev, "Device boot interrupted");
fad70972
JH		 2402 return -EINTR;
2403 }
cda0dd78 2404
fad70972 2405 if (err) {
85418fef 2406 bt_dev_err(hdev, "Device boot timeout");
fad70972 2407 return -ETIMEDOUT;
cda0dd78
MH		 2408 }
2409
2410 rettime = ktime_get();
2411 delta = ktime_sub(rettime, calltime);
2412 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2413
2064ee33 2414 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2415
2416 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2417
52cc9168
THJA		 2418 /* Once the device is running in operational mode, it needs to apply
2419 * the device configuration (DDC) parameters.
2420 *
2421 * The device can work without DDC parameters, so even if it fails
2422 * to load the file, no need to fail the setup.
2423 */
e924d3d6 2424 btintel_load_ddc_config(hdev, fwname);
52cc9168 2425
213445b2
MH		 2426 /* Set the event mask for Intel specific vendor events. This enables
2427 * a few extra events that are useful during general operation. It
2428 * does not enable any debugging related events.
2429 *
2430 * The device will function correctly without these events enabled
2431 * and thus no need to fail the setup.
2432 */
2433 btintel_set_event_mask(hdev, false);
2434
cda0dd78
MH		 2435 return 0;
2436}
2437
bfbd45e9
THJA		 2438static int btusb_shutdown_intel(struct hci_dev *hdev)
2439{
2440 struct sk_buff *skb;
2441 long ret;
2442
1313bccf
AB		 2443 /* In the shutdown sequence where Bluetooth is turned off followed
2444 * by WiFi being turned off, turning WiFi back on causes issue with
2445 * the RF calibration.
2446 *
2447 * To ensure that any RF activity has been stopped, issue HCI Reset
2448 * command to clear all ongoing activity including advertising,
2449 * scanning etc.
2450 */
2451 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2452 if (IS_ERR(skb)) {
2453 ret = PTR_ERR(skb);
2454 bt_dev_err(hdev, "HCI reset during shutdown failed");
2455 return ret;
2456 }
2457 kfree_skb(skb);
2458
bfbd45e9
THJA		 2459 /* Some platforms have an issue with BT LED when the interface is
2460 * down or BT radio is turned off, which takes 5 seconds to BT LED
2461 * goes off. This command turns off the BT LED immediately.
2462 */
2463 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2464 if (IS_ERR(skb)) {
2465 ret = PTR_ERR(skb);
85418fef 2466 bt_dev_err(hdev, "turning off Intel device LED failed");
bfbd45e9
THJA		 2467 return ret;
2468 }
2469 kfree_skb(skb);
2470
2471 return 0;
2472}
2473
017a01cc
RH		 2474static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2475{
2476 struct sk_buff *skb;
2477
2478 /* Send HCI Reset to the controller to stop any BT activity which
2479 * were triggered. This will help to save power and maintain the
2480 * sync b/w Host and controller
2481 */
2482 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2483 if (IS_ERR(skb)) {
2484 bt_dev_err(hdev, "HCI reset during shutdown failed");
2485 return PTR_ERR(skb);
2486 }
2487 kfree_skb(skb);
2488
2489 return 0;
2490}
2491
a1c49c43
SW		 2492#ifdef CONFIG_BT_HCIBTUSB_MTK
2493
9ce67c32 2494#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
a1c49c43
SW		 2495#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2496
2497#define HCI_WMT_MAX_EVENT_SIZE 64
2498
2499enum {
2500 BTMTK_WMT_PATCH_DWNLD = 0x1,
2501 BTMTK_WMT_FUNC_CTRL = 0x6,
2502 BTMTK_WMT_RST = 0x7,
2503 BTMTK_WMT_SEMAPHORE = 0x17,
2504};
2505
2506enum {
2507 BTMTK_WMT_INVALID,
2508 BTMTK_WMT_PATCH_UNDONE,
2509 BTMTK_WMT_PATCH_DONE,
2510 BTMTK_WMT_ON_UNDONE,
2511 BTMTK_WMT_ON_DONE,
2512 BTMTK_WMT_ON_PROGRESS,
2513};
2514
2515struct btmtk_wmt_hdr {
2516 u8 dir;
2517 u8 op;
2518 __le16 dlen;
2519 u8 flag;
2520} __packed;
2521
2522struct btmtk_hci_wmt_cmd {
2523 struct btmtk_wmt_hdr hdr;
2524 u8 data[256];
2525} __packed;
2526
2527struct btmtk_hci_wmt_evt {
2528 struct hci_event_hdr hhdr;
2529 struct btmtk_wmt_hdr whdr;
2530} __packed;
2531
2532struct btmtk_hci_wmt_evt_funcc {
2533 struct btmtk_hci_wmt_evt hwhdr;
2534 __be16 status;
2535} __packed;
2536
2537struct btmtk_tci_sleep {
2538 u8 mode;
2539 __le16 duration;
2540 __le16 host_duration;
2541 u8 host_wakeup_pin;
2542 u8 time_compensation;
2543} __packed;
2544
2545struct btmtk_hci_wmt_params {
2546 u8 op;
2547 u8 flag;
2548 u16 dlen;
2549 const void *data;
2550 u32 *status;
2551};
2552
2553static void btusb_mtk_wmt_recv(struct urb *urb)
2554{
2555 struct hci_dev *hdev = urb->context;
2556 struct btusb_data *data = hci_get_drvdata(hdev);
2557 struct hci_event_hdr *hdr;
2558 struct sk_buff *skb;
2559 int err;
2560
2561 if (urb->status == 0 && urb->actual_length > 0) {
2562 hdev->stat.byte_rx += urb->actual_length;
2563
2564 /* WMT event shouldn't be fragmented and the size should be
2565 * less than HCI_WMT_MAX_EVENT_SIZE.
2566 */
2567 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2568 if (!skb) {
2569 hdev->stat.err_rx++;
2570 goto err_out;
2571 }
2572
2573 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2574 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2575
2576 hdr = (void *)skb->data;
2577 /* Fix up the vendor event id with 0xff for vendor specific
2578 * instead of 0xe4 so that event send via monitoring socket can
2579 * be parsed properly.
2580 */
2581 hdr->evt = 0xff;
2582
2583 /* When someone waits for the WMT event, the skb is being cloned
2584 * and being processed the events from there then.
2585 */
2586 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2587 data->evt_skb = skb_clone(skb, GFP_KERNEL);
2588 if (!data->evt_skb)
2589 goto err_out;
2590 }
2591
2592 err = hci_recv_frame(hdev, skb);
2593 if (err < 0)
2594 goto err_free_skb;
2595
2596 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2597 &data->flags)) {
2598 /* Barrier to sync with other CPUs */
2599 smp_mb__after_atomic();
2600 wake_up_bit(&data->flags,
2601 BTUSB_TX_WAIT_VND_EVT);
2602 }
2603err_out:
2604 return;
2605err_free_skb:
2606 kfree_skb(data->evt_skb);
2607 data->evt_skb = NULL;
2608 return;
2609 } else if (urb->status == -ENOENT) {
2610 /* Avoid suspend failed when usb_kill_urb */
2611 return;
2612 }
2613
2614 usb_mark_last_busy(data->udev);
2615
2616 /* The URB complete handler is still called with urb->actual_length = 0
2617 * when the event is not available, so we should keep re-submitting
2618 * URB until WMT event returns, Also, It's necessary to wait some time
2619 * between the two consecutive control URBs to relax the target device
2620 * to generate the event. Otherwise, the WMT event cannot return from
2621 * the device successfully.
2622 */
2623 udelay(100);
2624
2625 usb_anchor_urb(urb, &data->ctrl_anchor);
2626 err = usb_submit_urb(urb, GFP_ATOMIC);
2627 if (err < 0) {
2628 /* -EPERM: urb is being killed;
2629 * -ENODEV: device got disconnected
2630 */
2631 if (err != -EPERM && err != -ENODEV)
2632 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2633 urb, -err);
2634 usb_unanchor_urb(urb);
2635 }
2636}
2637
2638static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2639{
2640 struct btusb_data *data = hci_get_drvdata(hdev);
2641 struct usb_ctrlrequest *dr;
2642 unsigned char *buf;
2643 int err, size = 64;
2644 unsigned int pipe;
2645 struct urb *urb;
2646
2647 urb = usb_alloc_urb(0, GFP_KERNEL);
2648 if (!urb)
2649 return -ENOMEM;
2650
2651 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2652 if (!dr) {
2653 usb_free_urb(urb);
2654 return -ENOMEM;
2655 }
2656
2657 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2658 dr->bRequest = 1;
2659 dr->wIndex = cpu_to_le16(0);
2660 dr->wValue = cpu_to_le16(48);
2661 dr->wLength = cpu_to_le16(size);
2662
2663 buf = kmalloc(size, GFP_KERNEL);
2664 if (!buf) {
2665 kfree(dr);
2666 return -ENOMEM;
2667 }
2668
2669 pipe = usb_rcvctrlpipe(data->udev, 0);
2670
2671 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2672 buf, size, btusb_mtk_wmt_recv, hdev);
2673
2674 urb->transfer_flags |= URB_FREE_BUFFER;
2675
2676 usb_anchor_urb(urb, &data->ctrl_anchor);
2677 err = usb_submit_urb(urb, GFP_KERNEL);
2678 if (err < 0) {
2679 if (err != -EPERM && err != -ENODEV)
2680 bt_dev_err(hdev, "urb %p submission failed (%d)",
2681 urb, -err);
2682 usb_unanchor_urb(urb);
2683 }
2684
2685 usb_free_urb(urb);
2686
2687 return err;
2688}
2689
2690static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2691 struct btmtk_hci_wmt_params *wmt_params)
2692{
2693 struct btusb_data *data = hci_get_drvdata(hdev);
2694 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2695 u32 hlen, status = BTMTK_WMT_INVALID;
2696 struct btmtk_hci_wmt_evt *wmt_evt;
2697 struct btmtk_hci_wmt_cmd wc;
2698 struct btmtk_wmt_hdr *hdr;
2699 int err;
2700
2701 /* Submit control IN URB on demand to process the WMT event */
2702 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2703 if (err < 0)
2704 return err;
2705
2706 /* Send the WMT command and wait until the WMT event returns */
2707 hlen = sizeof(*hdr) + wmt_params->dlen;
2708 if (hlen > 255)
2709 return -EINVAL;
2710
2711 hdr = (struct btmtk_wmt_hdr *)&wc;
2712 hdr->dir = 1;
2713 hdr->op = wmt_params->op;
2714 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2715 hdr->flag = wmt_params->flag;
2716 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2717
2718 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2719
2720 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2721
2722 if (err < 0) {
2723 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2724 return err;
2725 }
2726
2727 /* The vendor specific WMT commands are all answered by a vendor
2728 * specific event and will have the Command Status or Command
2729 * Complete as with usual HCI command flow control.
2730 *
2731 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2732 * state to be cleared. The driver specific event receive routine
2733 * will clear that state and with that indicate completion of the
2734 * WMT command.
2735 */
2736 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2737 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2738 if (err == -EINTR) {
2739 bt_dev_err(hdev, "Execution of wmt command interrupted");
2740 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2741 return err;
2742 }
2743
2744 if (err) {
2745 bt_dev_err(hdev, "Execution of wmt command timed out");
2746 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2747 return -ETIMEDOUT;
2748 }
2749
2750 /* Parse and handle the return WMT event */
2751 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2752 if (wmt_evt->whdr.op != hdr->op) {
2753 bt_dev_err(hdev, "Wrong op received %d expected %d",
2754 wmt_evt->whdr.op, hdr->op);
2755 err = -EIO;
2756 goto err_free_skb;
2757 }
2758
2759 switch (wmt_evt->whdr.op) {
2760 case BTMTK_WMT_SEMAPHORE:
2761 if (wmt_evt->whdr.flag == 2)
2762 status = BTMTK_WMT_PATCH_UNDONE;
2763 else
2764 status = BTMTK_WMT_PATCH_DONE;
2765 break;
2766 case BTMTK_WMT_FUNC_CTRL:
2767 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2768 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2769 status = BTMTK_WMT_ON_DONE;
2770 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2771 status = BTMTK_WMT_ON_PROGRESS;
2772 else
2773 status = BTMTK_WMT_ON_UNDONE;
2774 break;
2775 }
2776
2777 if (wmt_params->status)
2778 *wmt_params->status = status;
2779
2780err_free_skb:
2781 kfree_skb(data->evt_skb);
2782 data->evt_skb = NULL;
2783
2784 return err;
2785}
2786
2787static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2788{
2789 struct btmtk_hci_wmt_params wmt_params;
2790 const struct firmware *fw;
2791 const u8 *fw_ptr;
2792 size_t fw_size;
2793 int err, dlen;
2794 u8 flag;
2795
2796 err = request_firmware(&fw, fwname, &hdev->dev);
2797 if (err < 0) {
2798 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2799 return err;
2800 }
2801
2802 fw_ptr = fw->data;
2803 fw_size = fw->size;
2804
2805 /* The size of patch header is 30 bytes, should be skip */
5ee6310f
WY		 2806 if (fw_size < 30) {
2807 err = -EINVAL;
a1c49c43 2808 goto err_release_fw;
5ee6310f 2809 }
a1c49c43
SW		 2810
2811 fw_size -= 30;
2812 fw_ptr += 30;
2813 flag = 1;
2814
2815 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2816 wmt_params.status = NULL;
2817
2818 while (fw_size > 0) {
2819 dlen = min_t(int, 250, fw_size);
2820
2821 /* Tell deivice the position in sequence */
2822 if (fw_size - dlen <= 0)
2823 flag = 3;
2824 else if (fw_size < fw->size - 30)
2825 flag = 2;
2826
2827 wmt_params.flag = flag;
2828 wmt_params.dlen = dlen;
2829 wmt_params.data = fw_ptr;
2830
2831 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2832 if (err < 0) {
2833 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2834 err);
2835 goto err_release_fw;
2836 }
2837
2838 fw_size -= dlen;
2839 fw_ptr += dlen;
2840 }
2841
2842 wmt_params.op = BTMTK_WMT_RST;
2843 wmt_params.flag = 4;
2844 wmt_params.dlen = 0;
2845 wmt_params.data = NULL;
2846 wmt_params.status = NULL;
2847
2848 /* Activate funciton the firmware providing to */
2849 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2850 if (err < 0) {
2851 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2852 return err;
2853 }
2854
2855 /* Wait a few moments for firmware activation done */
2856 usleep_range(10000, 12000);
2857
2858err_release_fw:
2859 release_firmware(fw);
2860
2861 return err;
2862}
2863
2864static int btusb_mtk_func_query(struct hci_dev *hdev)
2865{
2866 struct btmtk_hci_wmt_params wmt_params;
2867 int status, err;
2868 u8 param = 0;
2869
2870 /* Query whether the function is enabled */
2871 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2872 wmt_params.flag = 4;
2873 wmt_params.dlen = sizeof(param);
2874 wmt_params.data = &param;
2875 wmt_params.status = &status;
2876
2877 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2878 if (err < 0) {
2879 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2880 return err;
2881 }
2882
2883 return status;
2884}
2885
2886static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2887{
2888 int pipe, err, size = sizeof(u32);
2889 void *buf;
2890
2891 buf = kzalloc(size, GFP_KERNEL);
2892 if (!buf)
2893 return -ENOMEM;
2894
2895 pipe = usb_rcvctrlpipe(data->udev, 0);
2896 err = usb_control_msg(data->udev, pipe, 0x63,
2897 USB_TYPE_VENDOR | USB_DIR_IN,
2898 reg >> 16, reg & 0xffff,
2899 buf, size, USB_CTRL_SET_TIMEOUT);
2900 if (err < 0)
2901 goto err_free_buf;
2902
2903 *val = get_unaligned_le32(buf);
2904
2905err_free_buf:
2906 kfree(buf);
2907
2908 return err;
2909}
2910
2911static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2912{
2913 return btusb_mtk_reg_read(data, 0x80000008, id);
2914}
2915
2916static int btusb_mtk_setup(struct hci_dev *hdev)
2917{
2918 struct btusb_data *data = hci_get_drvdata(hdev);
2919 struct btmtk_hci_wmt_params wmt_params;
2920 ktime_t calltime, delta, rettime;
2921 struct btmtk_tci_sleep tci_sleep;
2922 unsigned long long duration;
2923 struct sk_buff *skb;
2924 const char *fwname;
2925 int err, status;
2926 u32 dev_id;
2927 u8 param;
2928
2929 calltime = ktime_get();
2930
2931 err = btusb_mtk_id_get(data, &dev_id);
2932 if (err < 0) {
2933 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2934 return err;
2935 }
2936
2937 switch (dev_id) {
9ce67c32
SW		 2938 case 0x7663:
2939 fwname = FIRMWARE_MT7663;
2940 break;
a1c49c43
SW		 2941 case 0x7668:
2942 fwname = FIRMWARE_MT7668;
2943 break;
2944 default:
2945 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2946 dev_id);
2947 return -ENODEV;
2948 }
2949
2950 /* Query whether the firmware is already download */
2951 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2952 wmt_params.flag = 1;
2953 wmt_params.dlen = 0;
2954 wmt_params.data = NULL;
2955 wmt_params.status = &status;
2956
2957 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2958 if (err < 0) {
2959 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2960 return err;
2961 }
2962
2963 if (status == BTMTK_WMT_PATCH_DONE) {
2964 bt_dev_info(hdev, "firmware already downloaded");
2965 goto ignore_setup_fw;
2966 }
2967
2968 /* Setup a firmware which the device definitely requires */
2969 err = btusb_mtk_setup_firmware(hdev, fwname);
2970 if (err < 0)
2971 return err;
2972
2973ignore_setup_fw:
2974 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2975 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2976 2000, 5000000);
2977 /* -ETIMEDOUT happens */
2978 if (err < 0)
2979 return err;
2980
2981 /* The other errors happen in btusb_mtk_func_query */
2982 if (status < 0)
2983 return status;
2984
2985 if (status == BTMTK_WMT_ON_DONE) {
2986 bt_dev_info(hdev, "function already on");
2987 goto ignore_func_on;
2988 }
2989
2990 /* Enable Bluetooth protocol */
2991 param = 1;
2992 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2993 wmt_params.flag = 0;
2994 wmt_params.dlen = sizeof(param);
2995 wmt_params.data = &param;
2996 wmt_params.status = NULL;
2997
2998 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2999 if (err < 0) {
3000 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3001 return err;
3002 }
3003
3004ignore_func_on:
3005 /* Apply the low power environment setup */
3006 tci_sleep.mode = 0x5;
3007 tci_sleep.duration = cpu_to_le16(0x640);
3008 tci_sleep.host_duration = cpu_to_le16(0x640);
3009 tci_sleep.host_wakeup_pin = 0;
3010 tci_sleep.time_compensation = 0;
3011
3012 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3013 HCI_INIT_TIMEOUT);
3014 if (IS_ERR(skb)) {
3015 err = PTR_ERR(skb);
3016 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3017 return err;
3018 }
3019 kfree_skb(skb);
3020
3021 rettime = ktime_get();
3022 delta = ktime_sub(rettime, calltime);
3023 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3024
3025 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3026
3027 return 0;
3028}
3029
3030static int btusb_mtk_shutdown(struct hci_dev *hdev)
3031{
3032 struct btmtk_hci_wmt_params wmt_params;
3033 u8 param = 0;
3034 int err;
3035
3036 /* Disable the device */
3037 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3038 wmt_params.flag = 0;
3039 wmt_params.dlen = sizeof(param);
3040 wmt_params.data = &param;
3041 wmt_params.status = NULL;
3042
3043 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3044 if (err < 0) {
3045 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3046 return err;
3047 }
3048
3049 return 0;
3050}
3051
9ce67c32 3052MODULE_FIRMWARE(FIRMWARE_MT7663);
a1c49c43
SW		 3053MODULE_FIRMWARE(FIRMWARE_MT7668);
3054#endif
3055
a4ccc9e3
RJ		 3056#ifdef CONFIG_PM
3057/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3058static int marvell_config_oob_wake(struct hci_dev *hdev)
3059{
3060 struct sk_buff *skb;
3061 struct btusb_data *data = hci_get_drvdata(hdev);
3062 struct device *dev = &data->udev->dev;
3063 u16 pin, gap, opcode;
3064 int ret;
3065 u8 cmd[5];
3066
3067 /* Move on if no wakeup pin specified */
3068 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3069 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3070 return 0;
3071
3072 /* Vendor specific command to configure a GPIO as wake-up pin */
3073 opcode = hci_opcode_pack(0x3F, 0x59);
3074 cmd[0] = opcode & 0xFF;
3075 cmd[1] = opcode >> 8;
3076 cmd[2] = 2; /* length of parameters that follow */
3077 cmd[3] = pin;
3078 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3079
3080 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3081 if (!skb) {
3082 bt_dev_err(hdev, "%s: No memory\n", __func__);
3083 return -ENOMEM;
3084 }
3085
59ae1d12 3086 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 3087 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3088
3089 ret = btusb_send_frame(hdev, skb);
3090 if (ret) {
3091 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3092 kfree_skb(skb);
3093 return ret;
3094 }
3095
3096 return 0;
3097}
3098#endif
3099
ae8df494
AK		 3100static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3101 const bdaddr_t *bdaddr)
3102{
3103 struct sk_buff *skb;
3104 u8 buf[8];
3105 long ret;
3106
3107 buf[0] = 0xfe;
3108 buf[1] = sizeof(bdaddr_t);
3109 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3110
3111 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3112 if (IS_ERR(skb)) {
3113 ret = PTR_ERR(skb);
2064ee33
MH		 3114 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3115 ret);
ae8df494
AK		 3116 return ret;
3117 }
3118 kfree_skb(skb);
3119
3120 return 0;
3121}
3122
5859223e
TK		 3123static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3124 const bdaddr_t *bdaddr)
3125{
3126 struct sk_buff *skb;
3127 u8 buf[10];
3128 long ret;
3129
3130 buf[0] = 0x01;
3131 buf[1] = 0x01;
3132 buf[2] = 0x00;
3133 buf[3] = sizeof(bdaddr_t);
3134 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3135
3136 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3137 if (IS_ERR(skb)) {
3138 ret = PTR_ERR(skb);
2064ee33 3139 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 3140 return ret;
3141 }
3142 kfree_skb(skb);
3143
3144 return 0;
3145}
3146
3267c884
KBYT		 3147#define QCA_DFU_PACKET_LEN 4096
3148
3149#define QCA_GET_TARGET_VERSION 0x09
3150#define QCA_CHECK_STATUS 0x05
3151#define QCA_DFU_DOWNLOAD 0x01
3152
3153#define QCA_SYSCFG_UPDATED 0x40
3154#define QCA_PATCH_UPDATED 0x80
3155#define QCA_DFU_TIMEOUT 3000
3156
3157struct qca_version {
3158 __le32 rom_version;
3159 __le32 patch_version;
3160 __le32 ram_version;
3161 __le32 ref_clock;
3162 __u8 reserved[4];
3163} __packed;
3164
3165struct qca_rampatch_version {
3166 __le16 rom_version;
3167 __le16 patch_version;
3168} __packed;
3169
3170struct qca_device_info {
bf906b3d
KBYT		 3171 u32 rom_version;
3172 u8 rampatch_hdr; /* length of header in rampatch */
3173 u8 nvm_hdr; /* length of header in NVM */
3174 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 3175};
3176
3177static const struct qca_device_info qca_devices_table[] = {
3178 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3179 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 3180 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 3181 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3182 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3183 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3184};
3185
803cdb8c 3186static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3267c884
KBYT		 3187 void *data, u16 size)
3188{
3267c884
KBYT		 3189 int pipe, err;
3190 u8 *buf;
3191
3192 buf = kmalloc(size, GFP_KERNEL);
3193 if (!buf)
3194 return -ENOMEM;
3195
3196 /* Found some of USB hosts have IOT issues with ours so that we should
3197 * not wait until HCI layer is ready.
3198 */
3199 pipe = usb_rcvctrlpipe(udev, 0);
3200 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3201 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3202 if (err < 0) {
803cdb8c 3203 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 3204 goto done;
3205 }
3206
3207 memcpy(data, buf, size);
3208
3209done:
3210 kfree(buf);
3211
3212 return err;
3213}
3214
3215static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3216 const struct firmware *firmware,
3217 size_t hdr_size)
3218{
3219 struct btusb_data *btdata = hci_get_drvdata(hdev);
3220 struct usb_device *udev = btdata->udev;
3221 size_t count, size, sent = 0;
3222 int pipe, len, err;
3223 u8 *buf;
3224
3225 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3226 if (!buf)
3227 return -ENOMEM;
3228
3229 count = firmware->size;
3230
3231 size = min_t(size_t, count, hdr_size);
3232 memcpy(buf, firmware->data, size);
3233
3234 /* USB patches should go down to controller through USB path
3235 * because binary format fits to go down through USB channel.
3236 * USB control path is for patching headers and USB bulk is for
3237 * patch body.
3238 */
3239 pipe = usb_sndctrlpipe(udev, 0);
3240 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3241 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3242 if (err < 0) {
2064ee33 3243 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 3244 goto done;
3245 }
3246
3247 sent += size;
3248 count -= size;
3249
3250 while (count) {
3251 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3252
3253 memcpy(buf, firmware->data + sent, size);
3254
3255 pipe = usb_sndbulkpipe(udev, 0x02);
3256 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3257 QCA_DFU_TIMEOUT);
3258 if (err < 0) {
2064ee33
MH		 3259 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3260 sent, firmware->size, err);
3267c884
KBYT		 3261 break;
3262 }
3263
3264 if (size != len) {
2064ee33 3265 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 3266 err = -EILSEQ;
3267 break;
3268 }
3269
3270 sent += size;
3271 count -= size;
3272 }
3273
3274done:
3275 kfree(buf);
3276 return err;
3277}
3278
3279static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3280 struct qca_version *ver,
3281 const struct qca_device_info *info)
3282{
3283 struct qca_rampatch_version *rver;
3284 const struct firmware *fw;
bf906b3d
KBYT		 3285 u32 ver_rom, ver_patch;
3286 u16 rver_rom, rver_patch;
3267c884
KBYT		 3287 char fwname[64];
3288 int err;
3289
bf906b3d
KBYT		 3290 ver_rom = le32_to_cpu(ver->rom_version);
3291 ver_patch = le32_to_cpu(ver->patch_version);
3292
3293 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 3294
3295 err = request_firmware(&fw, fwname, &hdev->dev);
3296 if (err) {
2064ee33
MH		 3297 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3298 fwname, err);
3267c884
KBYT		 3299 return err;
3300 }
3301
2064ee33 3302 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 3303
3267c884 3304 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 3305 rver_rom = le16_to_cpu(rver->rom_version);
3306 rver_patch = le16_to_cpu(rver->patch_version);
3307
2064ee33
MH		 3308 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3309 "firmware rome 0x%x build 0x%x",
3310 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 3311
bf906b3d 3312 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 3313 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 3314 err = -EINVAL;
3315 goto done;
3316 }
3317
3318 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3319
3320done:
3321 release_firmware(fw);
3322
3323 return err;
3324}
3325
3326static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3327 struct qca_version *ver,
3328 const struct qca_device_info *info)
3329{
3330 const struct firmware *fw;
3331 char fwname[64];
3332 int err;
3333
3334 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3335 le32_to_cpu(ver->rom_version));
3336
3337 err = request_firmware(&fw, fwname, &hdev->dev);
3338 if (err) {
2064ee33
MH		 3339 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3340 fwname, err);
3267c884
KBYT		 3341 return err;
3342 }
3343
2064ee33 3344 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 3345
3346 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3347
3348 release_firmware(fw);
3349
3350 return err;
3351}
3352
803cdb8c
TI		 3353/* identify the ROM version and check whether patches are needed */
3354static bool btusb_qca_need_patch(struct usb_device *udev)
3355{
3356 struct qca_version ver;
3357
3358 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3359 sizeof(ver)) < 0)
3360 return false;
3361 /* only low ROM versions need patches */
3362 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3363}
3364
3267c884
KBYT		 3365static int btusb_setup_qca(struct hci_dev *hdev)
3366{
803cdb8c
TI		 3367 struct btusb_data *btdata = hci_get_drvdata(hdev);
3368 struct usb_device *udev = btdata->udev;
3267c884
KBYT		 3369 const struct qca_device_info *info = NULL;
3370 struct qca_version ver;
bf906b3d 3371 u32 ver_rom;
3267c884
KBYT		 3372 u8 status;
3373 int i, err;
3374
803cdb8c 3375 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 3376 sizeof(ver));
3267c884
KBYT		 3377 if (err < 0)
3378 return err;
3379
bf906b3d 3380 ver_rom = le32_to_cpu(ver.rom_version);
803cdb8c
TI		 3381 /* Don't care about high ROM versions */
3382 if (ver_rom & ~0xffffU)
3383 return 0;
3384
3267c884 3385 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 3386 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 3387 info = &qca_devices_table[i];
3388 }
3389 if (!info) {
2064ee33 3390 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 3391 return -ENODEV;
3392 }
3393
803cdb8c 3394 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3267c884
KBYT		 3395 sizeof(status));
3396 if (err < 0)
3397 return err;
3398
3399 if (!(status & QCA_PATCH_UPDATED)) {
3400 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3401 if (err < 0)
3402 return err;
3403 }
3404
3405 if (!(status & QCA_SYSCFG_UPDATED)) {
3406 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3407 if (err < 0)
3408 return err;
3409 }
3410
3411 return 0;
3412}
3413
9d08f504
MH		 3414#ifdef CONFIG_BT_HCIBTUSB_BCM
3415static inline int __set_diag_interface(struct hci_dev *hdev)
3416{
3417 struct btusb_data *data = hci_get_drvdata(hdev);
3418 struct usb_interface *intf = data->diag;
3419 int i;
3420
3421 if (!data->diag)
3422 return -ENODEV;
3423
3424 data->diag_tx_ep = NULL;
3425 data->diag_rx_ep = NULL;
3426
3427 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3428 struct usb_endpoint_descriptor *ep_desc;
3429
3430 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3431
3432 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3433 data->diag_tx_ep = ep_desc;
3434 continue;
3435 }
3436
3437 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3438 data->diag_rx_ep = ep_desc;
3439 continue;
3440 }
3441 }
3442
3443 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 3444 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 3445 return -ENODEV;
3446 }
3447
3448 return 0;
3449}
3450
3451static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3452{
3453 struct btusb_data *data = hci_get_drvdata(hdev);
3454 struct sk_buff *skb;
3455 struct urb *urb;
3456 unsigned int pipe;
3457
3458 if (!data->diag_tx_ep)
3459 return ERR_PTR(-ENODEV);
3460
3461 urb = usb_alloc_urb(0, GFP_KERNEL);
3462 if (!urb)
3463 return ERR_PTR(-ENOMEM);
3464
3465 skb = bt_skb_alloc(2, GFP_KERNEL);
3466 if (!skb) {
3467 usb_free_urb(urb);
3468 return ERR_PTR(-ENOMEM);
3469 }
3470
634fef61
JB		 3471 skb_put_u8(skb, 0xf0);
3472 skb_put_u8(skb, enable);
9d08f504
MH		 3473
3474 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3475
3476 usb_fill_bulk_urb(urb, data->udev, pipe,
3477 skb->data, skb->len, btusb_tx_complete, skb);
3478
3479 skb->dev = (void *)hdev;
3480
3481 return urb;
3482}
3483
3484static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3485{
3486 struct btusb_data *data = hci_get_drvdata(hdev);
3487 struct urb *urb;
3488
3489 if (!data->diag)
3490 return -ENODEV;
3491
3492 if (!test_bit(HCI_RUNNING, &hdev->flags))
3493 return -ENETDOWN;
3494
3495 urb = alloc_diag_urb(hdev, enable);
3496 if (IS_ERR(urb))
3497 return PTR_ERR(urb);
3498
3499 return submit_or_queue_tx_urb(hdev, urb);
3500}
3501#endif
3502
fd913ef7
RJ		 3503#ifdef CONFIG_PM
3504static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3505{
3506 struct btusb_data *data = priv;
3507
3508 pm_wakeup_event(&data->udev->dev, 0);
017789f3 3509 pm_system_wakeup();
fd913ef7
RJ		 3510
3511 /* Disable only if not already disabled (keep it balanced) */
3512 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3513 disable_irq_nosync(irq);
3514 disable_irq_wake(irq);
3515 }
3516 return IRQ_HANDLED;
3517}
3518
3519static const struct of_device_id btusb_match_table[] = {
3520 { .compatible = "usb1286,204e" },
4c409af0
BN		 3521 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3522 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
fd913ef7
RJ		 3523 { }
3524};
3525MODULE_DEVICE_TABLE(of, btusb_match_table);
3526
3527/* Use an oob wakeup pin? */
3528static int btusb_config_oob_wake(struct hci_dev *hdev)
3529{
3530 struct btusb_data *data = hci_get_drvdata(hdev);
3531 struct device *dev = &data->udev->dev;
3532 int irq, ret;
3533
3534 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3535
3536 if (!of_match_device(btusb_match_table, dev))
3537 return 0;
3538
3539 /* Move on if no IRQ specified */
3540 irq = of_irq_get_byname(dev->of_node, "wakeup");
3541 if (irq <= 0) {
3542 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3543 return 0;
3544 }
3545
771acc7e 3546 irq_set_status_flags(irq, IRQ_NOAUTOEN);
fd913ef7
RJ		 3547 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3548 0, "OOB Wake-on-BT", data);
3549 if (ret) {
3550 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3551 return ret;
3552 }
3553
3554 ret = device_init_wakeup(dev, true);
3555 if (ret) {
3556 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3557 return ret;
3558 }
3559
3560 data->oob_wake_irq = irq;
fd913ef7
RJ		 3561 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3562 return 0;
3563}
3564#endif
3565
fc549102
HG		 3566static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3567{
3568 if (dmi_check_system(btusb_needs_reset_resume_table))
3569 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3570}
3571
5e23b923 3572static int btusb_probe(struct usb_interface *intf,
89e7533d 3573 const struct usb_device_id *id)
5e23b923
MH		 3574{
3575 struct usb_endpoint_descriptor *ep_desc;
dc786b2c 3576 struct gpio_desc *reset_gpio;
5e23b923
MH		 3577 struct btusb_data *data;
3578 struct hci_dev *hdev;
22f8e9db 3579 unsigned ifnum_base;
5e23b923
MH		 3580 int i, err;
3581
3582 BT_DBG("intf %p id %p", intf, id);
3583
cfeb4145 3584 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 3585 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3586 if (!(id->driver_info & BTUSB_IFNUM_2))
3587 return -ENODEV;
3588 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3589 return -ENODEV;
3590 }
3591
3592 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 3593
3594 if (!id->driver_info) {
3595 const struct usb_device_id *match;
89e7533d 3596
5e23b923
MH		 3597 match = usb_match_id(intf, blacklist_table);
3598 if (match)
3599 id = match;
3600 }
3601
cfeb4145
MH		 3602 if (id->driver_info == BTUSB_IGNORE)
3603 return -ENODEV;
3604
2d25f8b4
SL		 3605 if (id->driver_info & BTUSB_ATH3012) {
3606 struct usb_device *udev = interface_to_usbdev(intf);
3607
3608 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 3609 * patch and sysconfig files
3610 */
803cdb8c
TI		 3611 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3612 !btusb_qca_need_patch(udev))
2d25f8b4
SL		 3613 return -ENODEV;
3614 }
3615
98921dbd 3616 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 3617 if (!data)
3618 return -ENOMEM;
3619
3620 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3621 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3622
3623 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3624 data->intr_ep = ep_desc;
3625 continue;
3626 }
3627
3628 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3629 data->bulk_tx_ep = ep_desc;
3630 continue;
3631 }
3632
3633 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3634 data->bulk_rx_ep = ep_desc;
3635 continue;
3636 }
3637 }
3638
98921dbd 3639 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 3640 return -ENODEV;
5e23b923 3641
893ba544
MH		 3642 if (id->driver_info & BTUSB_AMP) {
3643 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3644 data->cmdreq = 0x2b;
3645 } else {
3646 data->cmdreq_type = USB_TYPE_CLASS;
3647 data->cmdreq = 0x00;
3648 }
7a9d4020 3649
5e23b923 3650 data->udev = interface_to_usbdev(intf);
5fbcd260 3651 data->intf = intf;
5e23b923 3652
5e23b923 3653 INIT_WORK(&data->work, btusb_work);
7bee549e 3654 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 3655 init_usb_anchor(&data->deferred);
3656 init_usb_anchor(&data->tx_anchor);
7bee549e 3657 spin_lock_init(&data->txlock);
5e23b923 3658
5e23b923
MH		 3659 init_usb_anchor(&data->intr_anchor);
3660 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 3661 init_usb_anchor(&data->isoc_anchor);
9d08f504 3662 init_usb_anchor(&data->diag_anchor);
a1c49c43 3663 init_usb_anchor(&data->ctrl_anchor);
803b5836 3664 spin_lock_init(&data->rxlock);
5e23b923 3665
cda0dd78
MH		 3666 if (id->driver_info & BTUSB_INTEL_NEW) {
3667 data->recv_event = btusb_recv_event_intel;
3668 data->recv_bulk = btusb_recv_bulk_intel;
3669 set_bit(BTUSB_BOOTLOADER, &data->flags);
3670 } else {
3671 data->recv_event = hci_recv_frame;
3672 data->recv_bulk = btusb_recv_bulk;
3673 }
2cbd3f5c 3674
5e23b923 3675 hdev = hci_alloc_dev();
98921dbd 3676 if (!hdev)
5e23b923 3677 return -ENOMEM;
5e23b923 3678
c13854ce 3679 hdev->bus = HCI_USB;
155961e8 3680 hci_set_drvdata(hdev, data);
5e23b923 3681
893ba544
MH		 3682 if (id->driver_info & BTUSB_AMP)
3683 hdev->dev_type = HCI_AMP;
3684 else
ca8bee5d 3685 hdev->dev_type = HCI_PRIMARY;
893ba544 3686
5e23b923
MH		 3687 data->hdev = hdev;
3688
3689 SET_HCIDEV_DEV(hdev, &intf->dev);
3690
dc786b2c
RJ		 3691 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3692 GPIOD_OUT_LOW);
3693 if (IS_ERR(reset_gpio)) {
3694 err = PTR_ERR(reset_gpio);
3695 goto out_free_dev;
3696 } else if (reset_gpio) {
3697 data->reset_gpio = reset_gpio;
3698 }
3699
9f8f962c
MH		 3700 hdev->open = btusb_open;
3701 hdev->close = btusb_close;
3702 hdev->flush = btusb_flush;
3703 hdev->send = btusb_send_frame;
3704 hdev->notify = btusb_notify;
3705
fd913ef7
RJ		 3706#ifdef CONFIG_PM
3707 err = btusb_config_oob_wake(hdev);
3708 if (err)
3709 goto out_free_dev;
a4ccc9e3
RJ		 3710
3711 /* Marvell devices may need a specific chip configuration */
3712 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3713 err = marvell_config_oob_wake(hdev);
3714 if (err)
3715 goto out_free_dev;
3716 }
fd913ef7 3717#endif
418678b0
SJ		 3718 if (id->driver_info & BTUSB_CW6622)
3719 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3720
6c9d435d
MH		 3721 if (id->driver_info & BTUSB_BCM2045)
3722 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3723
9f8f962c
MH		 3724 if (id->driver_info & BTUSB_BCM92035)
3725 hdev->setup = btusb_setup_bcm92035;
5e23b923 3726
c2bfb100 3727#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 3728 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 3729 hdev->manufacturer = 15;
c2bfb100 3730 hdev->setup = btbcm_setup_patchram;
9d08f504 3731 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3732 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3733
3734 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3735 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3736 }
10d4c673 3737
9d08f504 3738 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 3739 hdev->manufacturer = 15;
c2bfb100 3740 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3741 hdev->set_diag = btusb_bcm_set_diag;
3742
3743 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3744 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3745 }
c2bfb100 3746#endif
17b2772b 3747
cb8d6597 3748 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3749 hdev->manufacturer = 2;
dffd30ee 3750 hdev->setup = btusb_setup_intel;
bfbd45e9 3751 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3752 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3753 hdev->set_bdaddr = btintel_set_bdaddr;
dc786b2c 3754 hdev->cmd_timeout = btusb_intel_cmd_timeout;
c33fb9b4 3755 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3756 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3757 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3758 }
dffd30ee 3759
cda0dd78 3760 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3761 hdev->manufacturer = 2;
cda0dd78
MH		 3762 hdev->send = btusb_send_frame_intel;
3763 hdev->setup = btusb_setup_intel_new;
017a01cc 3764 hdev->shutdown = btusb_shutdown_intel_new;
eeb6abe9 3765 hdev->hw_error = btintel_hw_error;
6d2e50d2 3766 hdev->set_diag = btintel_set_diag;
4185a0f5 3767 hdev->set_bdaddr = btintel_set_bdaddr;
dc786b2c 3768 hdev->cmd_timeout = btusb_intel_cmd_timeout;
b970c5ba 3769 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
f7785021 3770 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
d8270fbb 3771 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3772 }
3773
ae8df494
AK		 3774 if (id->driver_info & BTUSB_MARVELL)
3775 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3776
a1c49c43
SW		 3777#ifdef CONFIG_BT_HCIBTUSB_MTK
3778 if (id->driver_info & BTUSB_MEDIATEK) {
3779 hdev->setup = btusb_mtk_setup;
3780 hdev->shutdown = btusb_mtk_shutdown;
3781 hdev->manufacturer = 70;
3782 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3783 }
3784#endif
3785
661cf88a
MH		 3786 if (id->driver_info & BTUSB_SWAVE) {
3787 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3788 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3789 }
d57dbe77 3790
e4c534bb
MH		 3791 if (id->driver_info & BTUSB_INTEL_BOOT) {
3792 hdev->manufacturer = 2;
40df783d 3793 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3794 }
40df783d 3795
79f0c87d 3796 if (id->driver_info & BTUSB_ATH3012) {
803cdb8c 3797 data->setup_on_usb = btusb_setup_qca;
5859223e 3798 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3799 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3800 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3801 }
5859223e 3802
3267c884
KBYT		 3803 if (id->driver_info & BTUSB_QCA_ROME) {
3804 data->setup_on_usb = btusb_setup_qca;
3805 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
96e58d36 3806 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
fc549102 3807 btusb_check_needs_reset_resume(intf);
3267c884
KBYT		 3808 }
3809
db33c77d 3810#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 3811 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 3812 hdev->setup = btrtl_setup_realtek;
7af3f558 3813 hdev->shutdown = btrtl_shutdown_realtek;
d7ef0d1e 3814 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
04b8c814 3815
9e45524a
AL		 3816 /* Realtek devices lose their updated firmware over global
3817 * suspend that means host doesn't send SET_FEATURE
3818 * (DEVICE_REMOTE_WAKEUP)
04b8c814 3819 */
9e45524a 3820 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
04b8c814 3821 }
db33c77d 3822#endif
a2698a9b 3823
893ba544
MH		 3824 if (id->driver_info & BTUSB_AMP) {
3825 /* AMP controllers do not support SCO packets */
3826 data->isoc = NULL;
3827 } else {
22f8e9db
MH		 3828 /* Interface orders are hardcoded in the specification */
3829 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
459232fc 3830 data->isoc_ifnum = ifnum_base + 1;
893ba544 3831 }
9bfa35fe 3832
7a9d4020 3833 if (!reset)
a6c511c6 3834 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3835
3836 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3837 if (!disable_scofix)
3838 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3839 }
3840
9bfa35fe
MH		 3841 if (id->driver_info & BTUSB_BROKEN_ISOC)
3842 data->isoc = NULL;
3843
7a9d4020
MH		 3844 if (id->driver_info & BTUSB_DIGIANSWER) {
3845 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3846 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3847 }
3848
3849 if (id->driver_info & BTUSB_CSR) {
3850 struct usb_device *udev = data->udev;
81cac64b 3851 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3852
3853 /* Old firmware would otherwise execute USB reset */
81cac64b 3854 if (bcdDevice < 0x117)
a6c511c6 3855 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3856
3857 /* Fake CSR devices with broken commands */
6cafcd95 3858 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3859 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3860
3861 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3862 }
3863
cfeb4145 3864 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3865 struct usb_device *udev = data->udev;
cfeb4145 3866
7a9d4020 3867 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3868 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3869 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3870 }
3871
3a5ef20c
MH		 3872 if (id->driver_info & BTUSB_INTEL_BOOT) {
3873 /* A bug in the bootloader causes that interrupt interface is
3874 * only enabled after receiving SetInterface(0, AltSetting=0).
3875 */
3876 err = usb_set_interface(data->udev, 0, 0);
3877 if (err < 0) {
3878 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3879 goto out_free_dev;
3a5ef20c
MH		 3880 }
3881 }
3882
9bfa35fe
MH		 3883 if (data->isoc) {
3884 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3885 data->isoc, data);
10ab133b
RJ		 3886 if (err < 0)
3887 goto out_free_dev;
9bfa35fe
MH		 3888 }
3889
9d08f504
MH		 3890#ifdef CONFIG_BT_HCIBTUSB_BCM
3891 if (data->diag) {
3892 if (!usb_driver_claim_interface(&btusb_driver,
3893 data->diag, data))
3894 __set_diag_interface(hdev);
3895 else
3896 data->diag = NULL;
3897 }
3898#endif
3899
eff2d68c
HG		 3900 if (enable_autosuspend)
3901 usb_enable_autosuspend(data->udev);
3902
5e23b923 3903 err = hci_register_dev(hdev);
10ab133b
RJ		 3904 if (err < 0)
3905 goto out_free_dev;
5e23b923
MH		 3906
3907 usb_set_intfdata(intf, data);
3908
3909 return 0;
10ab133b
RJ		 3910
3911out_free_dev:
dc786b2c
RJ		 3912 if (data->reset_gpio)
3913 gpiod_put(data->reset_gpio);
10ab133b
RJ		 3914 hci_free_dev(hdev);
3915 return err;
5e23b923
MH		 3916}
3917
3918static void btusb_disconnect(struct usb_interface *intf)
3919{
3920 struct btusb_data *data = usb_get_intfdata(intf);
3921 struct hci_dev *hdev;
3922
3923 BT_DBG("intf %p", intf);
3924
3925 if (!data)
3926 return;
3927
3928 hdev = data->hdev;
5fbcd260
MH		 3929 usb_set_intfdata(data->intf, NULL);
3930
3931 if (data->isoc)
3932 usb_set_intfdata(data->isoc, NULL);
5e23b923 3933
9d08f504
MH		 3934 if (data->diag)
3935 usb_set_intfdata(data->diag, NULL);
3936
5e23b923
MH		 3937 hci_unregister_dev(hdev);
3938
9d08f504
MH		 3939 if (intf == data->intf) {
3940 if (data->isoc)
3941 usb_driver_release_interface(&btusb_driver, data->isoc);
3942 if (data->diag)
3943 usb_driver_release_interface(&btusb_driver, data->diag);
3944 } else if (intf == data->isoc) {
3945 if (data->diag)
3946 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3947 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3948 } else if (intf == data->diag) {
3949 usb_driver_release_interface(&btusb_driver, data->intf);
3950 if (data->isoc)
3951 usb_driver_release_interface(&btusb_driver, data->isoc);
3952 }
5fbcd260 3953
fd913ef7
RJ		 3954 if (data->oob_wake_irq)
3955 device_init_wakeup(&data->udev->dev, false);
3956
dc786b2c
RJ		 3957 if (data->reset_gpio)
3958 gpiod_put(data->reset_gpio);
3959
5e23b923
MH		 3960 hci_free_dev(hdev);
3961}
3962
7bee549e 3963#ifdef CONFIG_PM
6a88adf2
MH		 3964static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3965{
3966 struct btusb_data *data = usb_get_intfdata(intf);
3967
3968 BT_DBG("intf %p", intf);
3969
3970 if (data->suspend_count++)
3971 return 0;
3972
7bee549e 3973 spin_lock_irq(&data->txlock);
5b1b0b81 3974 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3975 set_bit(BTUSB_SUSPENDING, &data->flags);
3976 spin_unlock_irq(&data->txlock);
3977 } else {
3978 spin_unlock_irq(&data->txlock);
3979 data->suspend_count--;
3980 return -EBUSY;
3981 }
3982
6a88adf2
MH		 3983 cancel_work_sync(&data->work);
3984
7bee549e 3985 btusb_stop_traffic(data);
6a88adf2
MH		 3986 usb_kill_anchored_urbs(&data->tx_anchor);
3987
fd913ef7
RJ		 3988 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3989 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3990 enable_irq_wake(data->oob_wake_irq);
3991 enable_irq(data->oob_wake_irq);
3992 }
3993
9e45524a
AL		 3994 /* For global suspend, Realtek devices lose the loaded fw
3995 * in them. But for autosuspend, firmware should remain.
3996 * Actually, it depends on whether the usb host sends
3997 * set feature (enable wakeup) or not.
3998 */
3999 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4000 if (PMSG_IS_AUTO(message) &&
4001 device_can_wakeup(&data->udev->dev))
4002 data->udev->do_remote_wakeup = 1;
4003 else if (!PMSG_IS_AUTO(message))
4004 data->udev->reset_resume = 1;
4005 }
4006
6a88adf2
MH		 4007 return 0;
4008}
4009
7bee549e
ON		 4010static void play_deferred(struct btusb_data *data)
4011{
4012 struct urb *urb;
4013 int err;
4014
4015 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 4016 usb_anchor_urb(urb, &data->tx_anchor);
4017
7bee549e 4018 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 4019 if (err < 0) {
4020 if (err != -EPERM && err != -ENODEV)
4021 BT_ERR("%s urb %p submission failed (%d)",
4022 data->hdev->name, urb, -err);
4023 kfree(urb->setup_packet);
4024 usb_unanchor_urb(urb);
4025 usb_free_urb(urb);
7bee549e 4026 break;
19cfe912 4027 }
7bee549e
ON		 4028
4029 data->tx_in_flight++;
19cfe912
JC		 4030 usb_free_urb(urb);
4031 }
4032
4033 /* Cleanup the rest deferred urbs. */
4034 while ((urb = usb_get_from_anchor(&data->deferred))) {
4035 kfree(urb->setup_packet);
4036 usb_free_urb(urb);
7bee549e 4037 }
7bee549e
ON		 4038}
4039
6a88adf2
MH		 4040static int btusb_resume(struct usb_interface *intf)
4041{
4042 struct btusb_data *data = usb_get_intfdata(intf);
4043 struct hci_dev *hdev = data->hdev;
7bee549e 4044 int err = 0;
6a88adf2
MH		 4045
4046 BT_DBG("intf %p", intf);
4047
4048 if (--data->suspend_count)
4049 return 0;
4050
fd913ef7
RJ		 4051 /* Disable only if not already disabled (keep it balanced) */
4052 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4053 disable_irq(data->oob_wake_irq);
4054 disable_irq_wake(data->oob_wake_irq);
4055 }
4056
6a88adf2 4057 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 4058 goto done;
6a88adf2
MH		 4059
4060 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4061 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4062 if (err < 0) {
4063 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 4064 goto failed;
6a88adf2
MH		 4065 }
4066 }
4067
4068 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 4069 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4070 if (err < 0) {
6a88adf2 4071 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 4072 goto failed;
4073 }
4074
4075 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 4076 }
4077
4078 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4079 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4080 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4081 else
4082 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4083 }
4084
7bee549e
ON		 4085 spin_lock_irq(&data->txlock);
4086 play_deferred(data);
4087 clear_bit(BTUSB_SUSPENDING, &data->flags);
4088 spin_unlock_irq(&data->txlock);
4089 schedule_work(&data->work);
4090
6a88adf2 4091 return 0;
7bee549e
ON		 4092
4093failed:
4094 usb_scuttle_anchored_urbs(&data->deferred);
4095done:
4096 spin_lock_irq(&data->txlock);
4097 clear_bit(BTUSB_SUSPENDING, &data->flags);
4098 spin_unlock_irq(&data->txlock);
4099
4100 return err;
6a88adf2 4101}
7bee549e 4102#endif
6a88adf2 4103
5e23b923
MH		 4104static struct usb_driver btusb_driver = {
4105 .name = "btusb",
4106 .probe = btusb_probe,
4107 .disconnect = btusb_disconnect,
7bee549e 4108#ifdef CONFIG_PM
6a88adf2
MH		 4109 .suspend = btusb_suspend,
4110 .resume = btusb_resume,
7bee549e 4111#endif
5e23b923 4112 .id_table = btusb_table,
7bee549e 4113 .supports_autosuspend = 1,
e1f12eb6 4114 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 4115};
4116
93f1508c 4117module_usb_driver(btusb_driver);
5e23b923 4118
cfeb4145
MH		 4119module_param(disable_scofix, bool, 0644);
4120MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4121
4122module_param(force_scofix, bool, 0644);
4123MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4124
eff2d68c
HG		 4125module_param(enable_autosuspend, bool, 0644);
4126MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4127
cfeb4145
MH		 4128module_param(reset, bool, 0644);
4129MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4130
5e23b923
MH		 4131MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4132MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4133MODULE_VERSION(VERSION);
4134MODULE_LICENSE("GPL");
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