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Bluetooth: add support to notify using SCO air mode
[linux-block.git] / drivers / bluetooth / btusb.c
CommitLineData
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
3e4e3f73 60#define BTUSB_WIDEBAND_SPEECH 0x400000
5e23b923 61
54265202 62static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 63 /* Generic Bluetooth USB device */
64 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
65
893ba544
MH		 66 /* Generic Bluetooth AMP device */
67 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
68
d63b2826
DD		 69 /* Generic Bluetooth USB interface */
70 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
71
1fa6535f 72 /* Apple-specific (Broadcom) devices */
17b2772b 73 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 74 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 75
178c059e
CYC		 76 /* MediaTek MT76x0E */
77 { USB_DEVICE(0x0e8d, 0x763f) },
78
c510eae3 79 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 80 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 81
3cd01976
NI		 82 /* Apple MacBookPro 7,1 */
83 { USB_DEVICE(0x05ac, 0x8213) },
84
0a79f674
CL		 85 /* Apple iMac11,1 */
86 { USB_DEVICE(0x05ac, 0x8215) },
87
9c047157
NI		 88 /* Apple MacBookPro6,2 */
89 { USB_DEVICE(0x05ac, 0x8218) },
90
3e3ede7d
EH		 91 /* Apple MacBookAir3,1, MacBookAir3,2 */
92 { USB_DEVICE(0x05ac, 0x821b) },
93
a63b723d
PAVM		 94 /* Apple MacBookAir4,1 */
95 { USB_DEVICE(0x05ac, 0x821f) },
96
88d377b6
MAP		 97 /* Apple MacBookPro8,2 */
98 { USB_DEVICE(0x05ac, 0x821a) },
99
f78b6826
JK		 100 /* Apple MacMini5,1 */
101 { USB_DEVICE(0x05ac, 0x8281) },
102
cfeb4145 103 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 104 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 105
106 /* Bluetooth Ultraport Module from IBM */
107 { USB_DEVICE(0x04bf, 0x030a) },
108
109 /* ALPS Modules with non-standard id */
110 { USB_DEVICE(0x044e, 0x3001) },
111 { USB_DEVICE(0x044e, 0x3002) },
112
113 /* Ericsson with non-standard id */
114 { USB_DEVICE(0x0bdb, 0x1002) },
115
116 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 117 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 118
d13431ca
WJS		 119 /* Broadcom BCM20702A0 */
120 { USB_DEVICE(0x413c, 0x8197) },
121
d049f4e5
MH		 122 /* Broadcom BCM20702B0 (Dynex/Insignia) */
123 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
124
2faf71ce 125 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
628c26b4
DT		 126 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
127 .driver_info = BTUSB_BCM_PATCHRAM },
2faf71ce 128
a57bac43
CH		 129 /* Broadcom BCM920703 (HTC Vive) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
98514036 133 /* Foxconn - Hon Hai */
6029ddc2
HS		 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 136
8f0c304c
MD		 137 /* Lite-On Technology - Broadcom based */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
0b880062 141 /* Broadcom devices with vendor specific id */
10d4c673
PG		 142 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 144
c2aef6e8 145 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 148
5bcecf32 149 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 150 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 152
9113bfd8 153 /* IMC Networks - Broadcom based */
6331c686
MH		 154 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 156
fdfddc60
WJS		 157 /* Dell Computer - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
1623d0bf
DT		 161 /* Toshiba Corp - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
40df783d 165 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 166 { USB_DEVICE(0x8087, 0x0a5a),
167 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 168
5e23b923
MH		 169 { } /* Terminating entry */
170};
171
172MODULE_DEVICE_TABLE(usb, btusb_table);
173
54265202 174static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 175 /* CSR BlueCore devices */
176 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
177
178 /* Broadcom BCM2033 without firmware */
179 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
180
6c9d435d
MH		 181 /* Broadcom BCM2045 devices */
182 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
183
be93112a 184 /* Atheros 3011 with sflash firmware */
0b880062
AS		 185 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 187 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 188 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 189 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 190 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 191 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 192
509e7861
CYC		 193 /* Atheros AR9285 Malbec with sflash firmware */
194 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
195
d9f51b51 196 /* Atheros 3012 with sflash firmware */
0b880062
AS		 197 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 202 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 203 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8 204 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 205 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 209 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 210 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 212 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 213 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 214 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 215 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d 216 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062 217 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 218 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 219 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 220 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 221 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 222 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
544a5916 223 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 224 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 225 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 226 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 227 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 228 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 229 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 230 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 231 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 232 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 233 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 234 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 235 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 237 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 238 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 239 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 240 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 241 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 242 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 243 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 244 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5 245 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896 246 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51 247
e9036e33
CYC		 248 /* Atheros AR5BBU12 with sflash firmware */
249 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
250
85d59726 251 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 252 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 253 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 254
3267c884 255 /* QCA ROME chipset */
1411a260 256 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
2054111b 257 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
93519934 258 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
e5a49ee9 259 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
c9e44474 260 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
1eef1c35 261 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
c9e44474 262 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
47ca5898 263 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
858ff38a 264 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
06e41d8a 265 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
1144a4ee 266 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
0a03f98b 267 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
d829b9e2 268 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
d666fc54 269 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
19220f35 270 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME },
44d34af2 271 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
df2445bf 272 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
881cec4f 273 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
3267c884 274
cfeb4145 275 /* Broadcom BCM2035 */
7a9d4020 276 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 277 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
278 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 279
280 /* Broadcom BCM2045 */
7a9d4020
MH		 281 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
282 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 283
cfeb4145 284 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 285 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
286 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 287
288 /* HP laptop with Broadcom chip */
7a9d4020 289 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 290
291 /* Dell laptop with Broadcom chip */
7a9d4020 292 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 293
5ddd4a60 294 /* Dell Wireless 370 and 410 devices */
7a9d4020 295 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 296 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 297
7a9d4020
MH		 298 /* Belkin F8T012 and F8T013 devices */
299 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
300 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 301
5ddd4a60
MH		 302 /* Asus WL-BTD202 device */
303 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
304
305 /* Kensington Bluetooth USB adapter */
306 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
307
cfeb4145
MH		 308 /* RTX Telecom based adapters with buggy SCO support */
309 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
310 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
311
312 /* CONWISE Technology based adapters with buggy SCO support */
418678b0
SJ		 313 { USB_DEVICE(0x0e5e, 0x6622),
314 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
cfeb4145 315
4fcef8ed 316 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 317 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 318
cfeb4145
MH		 319 /* Digianswer devices */
320 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
321 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
322
323 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 324 { USB_DEVICE(0x0a12, 0x0002),
325 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 326
327 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 328 { USB_DEVICE(0x16d3, 0x0002),
329 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 330
cb1ee89f
MH		 331 /* Marvell Bluetooth devices */
332 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
333 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
1165df0e 334 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
cb1ee89f 335
d0ac9eb7 336 /* Intel Bluetooth devices */
3e4e3f73
AM		 337 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW |
338 BTUSB_WIDEBAND_SPEECH },
339 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW |
340 BTUSB_WIDEBAND_SPEECH },
341 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW |
342 BTUSB_WIDEBAND_SPEECH },
407550fe 343 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 344 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 345 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
3e4e3f73
AM		 346 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW |
347 BTUSB_WIDEBAND_SPEECH },
348 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL |
349 BTUSB_WIDEBAND_SPEECH },
350 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW |
351 BTUSB_WIDEBAND_SPEECH },
dffd30ee 352
d0ac9eb7
MH		 353 /* Other Intel Bluetooth devices */
354 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
355 .driver_info = BTUSB_IGNORE },
ae8df494 356
a2698a9b
DD		 357 /* Realtek Bluetooth devices */
358 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
359 .driver_info = BTUSB_REALTEK },
360
a1c49c43
SW		 361 /* MediaTek Bluetooth devices */
362 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
363 .driver_info = BTUSB_MEDIATEK },
364
a2698a9b
DD		 365 /* Additional Realtek 8723AE Bluetooth devices */
366 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
368
369 /* Additional Realtek 8723BE Bluetooth devices */
370 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
371 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
372 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
373 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
374 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
a81d72d2 375 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
a2698a9b 376
a41e0796
VB		 377 /* Additional Realtek 8723BU Bluetooth devices */
378 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
379
66d9975c 380 /* Additional Realtek 8723DE Bluetooth devices */
45ae68b8 381 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
66d9975c
JHP		 382 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
383
a2698a9b
DD		 384 /* Additional Realtek 8821AE Bluetooth devices */
385 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
386 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
387 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
388 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
389 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
390
fed03fe7 391 /* Additional Realtek 8822BE Bluetooth devices */
1cd2fabf 392 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
fed03fe7
LF		 393 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
394
6d0762b1
JHP		 395 /* Additional Realtek 8822CE Bluetooth devices */
396 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
eb3939e3 397 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK },
6d0762b1 398
4481c076
PP		 399 /* Silicon Wave based devices */
400 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
401
5e23b923
MH		 402 { } /* Terminating entry */
403};
404
1fdb9269
HG		 405/* The Bluetooth USB module build into some devices needs to be reset on resume,
406 * this is a problem with the platform (likely shutting off all power) not with
407 * the module itself. So we use a DMI list to match known broken platforms.
408 */
409static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
410 {
0c6e5266 411 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
1fdb9269 412 .matches = {
0c6e5266
KHF		 413 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
414 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
1fdb9269
HG		 415 },
416 },
596b07a9
HG		 417 {
418 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
419 .matches = {
420 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
421 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
422 },
423 },
939bc6c5
HG		 424 {
425 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
426 .matches = {
427 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
428 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
429 },
430 },
1fdb9269
HG		 431 {}
432};
433
9bfa35fe
MH		 434#define BTUSB_MAX_ISOC_FRAMES 10
435
5e23b923
MH		 436#define BTUSB_INTR_RUNNING 0
437#define BTUSB_BULK_RUNNING 1
9bfa35fe 438#define BTUSB_ISOC_RUNNING 2
7bee549e 439#define BTUSB_SUSPENDING 3
08b8b6c4 440#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 441#define BTUSB_BOOTLOADER 5
442#define BTUSB_DOWNLOADING 6
ce6bb929 443#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 444#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 445#define BTUSB_BOOTING 9
61f5acea
HG		 446#define BTUSB_DIAG_RUNNING 10
447#define BTUSB_OOB_WAKE_ENABLED 11
dc786b2c 448#define BTUSB_HW_RESET_ACTIVE 12
a1c49c43 449#define BTUSB_TX_WAIT_VND_EVT 13
9e45524a 450#define BTUSB_WAKEUP_DISABLE 14
5e23b923
MH		 451
452struct btusb_data {
453 struct hci_dev *hdev;
454 struct usb_device *udev;
5fbcd260 455 struct usb_interface *intf;
9bfa35fe 456 struct usb_interface *isoc;
9d08f504 457 struct usb_interface *diag;
459232fc 458 unsigned isoc_ifnum;
5e23b923 459
5e23b923
MH		 460 unsigned long flags;
461
462 struct work_struct work;
7bee549e 463 struct work_struct waker;
5e23b923 464
803b5836 465 struct usb_anchor deferred;
5e23b923 466 struct usb_anchor tx_anchor;
803b5836
MH		 467 int tx_in_flight;
468 spinlock_t txlock;
469
5e23b923
MH		 470 struct usb_anchor intr_anchor;
471 struct usb_anchor bulk_anchor;
9bfa35fe 472 struct usb_anchor isoc_anchor;
9d08f504 473 struct usb_anchor diag_anchor;
a1c49c43 474 struct usb_anchor ctrl_anchor;
803b5836
MH		 475 spinlock_t rxlock;
476
477 struct sk_buff *evt_skb;
478 struct sk_buff *acl_skb;
479 struct sk_buff *sco_skb;
5e23b923
MH		 480
481 struct usb_endpoint_descriptor *intr_ep;
482 struct usb_endpoint_descriptor *bulk_tx_ep;
483 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 484 struct usb_endpoint_descriptor *isoc_tx_ep;
485 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 486 struct usb_endpoint_descriptor *diag_tx_ep;
487 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 488
dc786b2c
RJ		 489 struct gpio_desc *reset_gpio;
490
7a9d4020 491 __u8 cmdreq_type;
893ba544 492 __u8 cmdreq;
7a9d4020 493
43c2e57f 494 unsigned int sco_num;
9bfa35fe 495 int isoc_altsetting;
6a88adf2 496 int suspend_count;
2cbd3f5c 497
97307f51 498 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 499 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 500
501 int (*setup_on_usb)(struct hci_dev *hdev);
fd913ef7
RJ		 502
503 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
dc786b2c 504 unsigned cmd_timeout_cnt;
5e23b923
MH		 505};
506
dc786b2c
RJ		 507
508static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
509{
510 struct btusb_data *data = hci_get_drvdata(hdev);
511 struct gpio_desc *reset_gpio = data->reset_gpio;
512
513 if (++data->cmd_timeout_cnt < 5)
514 return;
515
516 if (!reset_gpio) {
517 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
518 return;
519 }
520
521 /*
522 * Toggle the hard reset line if the platform provides one. The reset
523 * is going to yank the device off the USB and then replug. So doing
524 * once is enough. The cleanup is handled correctly on the way out
525 * (standard USB disconnect), and the new device is detected cleanly
526 * and bound to the driver again like it should be.
527 */
528 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
529 bt_dev_err(hdev, "last reset failed? Not resetting again");
530 return;
531 }
532
533 bt_dev_err(hdev, "Initiating HW reset via gpio");
2de66bb8
RJ		 534 gpiod_set_value_cansleep(reset_gpio, 1);
535 msleep(100);
536 gpiod_set_value_cansleep(reset_gpio, 0);
dc786b2c
RJ		 537}
538
d7ef0d1e
AL		 539static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
540{
541 struct btusb_data *data = hci_get_drvdata(hdev);
542 struct gpio_desc *reset_gpio = data->reset_gpio;
543
544 if (++data->cmd_timeout_cnt < 5)
545 return;
546
547 if (!reset_gpio) {
548 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
549 return;
550 }
551
552 /* Toggle the hard reset line. The Realtek device is going to
553 * yank itself off the USB and then replug. The cleanup is handled
554 * correctly on the way out (standard USB disconnect), and the new
555 * device is detected cleanly and bound to the driver again like
556 * it should be.
557 */
558 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
559 bt_dev_err(hdev, "last reset failed? Not resetting again");
560 return;
561 }
562
563 bt_dev_err(hdev, "Reset Realtek device via gpio");
d7ef0d1e 564 gpiod_set_value_cansleep(reset_gpio, 1);
34682110
MC		 565 msleep(200);
566 gpiod_set_value_cansleep(reset_gpio, 0);
d7ef0d1e
AL		 567}
568
803b5836
MH		 569static inline void btusb_free_frags(struct btusb_data *data)
570{
571 unsigned long flags;
572
573 spin_lock_irqsave(&data->rxlock, flags);
574
575 kfree_skb(data->evt_skb);
576 data->evt_skb = NULL;
577
578 kfree_skb(data->acl_skb);
579 data->acl_skb = NULL;
580
581 kfree_skb(data->sco_skb);
582 data->sco_skb = NULL;
583
584 spin_unlock_irqrestore(&data->rxlock, flags);
585}
586
1ffa4ad0
MH		 587static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
588{
803b5836 589 struct sk_buff *skb;
a5e50d5b 590 unsigned long flags;
803b5836
MH		 591 int err = 0;
592
a5e50d5b 593 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 594 skb = data->evt_skb;
595
596 while (count) {
597 int len;
598
599 if (!skb) {
600 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
601 if (!skb) {
602 err = -ENOMEM;
603 break;
604 }
605
618e8bc2
MH		 606 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
607 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 608 }
609
618e8bc2 610 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 611 skb_put_data(skb, buffer, len);
803b5836
MH		 612
613 count -= len;
614 buffer += len;
618e8bc2 615 hci_skb_expect(skb) -= len;
803b5836
MH		 616
617 if (skb->len == HCI_EVENT_HDR_SIZE) {
618 /* Complete event header */
618e8bc2 619 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 620
618e8bc2 621 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 622 kfree_skb(skb);
623 skb = NULL;
624
625 err = -EILSEQ;
626 break;
627 }
628 }
629
618e8bc2 630 if (!hci_skb_expect(skb)) {
803b5836 631 /* Complete frame */
97307f51 632 data->recv_event(data->hdev, skb);
803b5836
MH		 633 skb = NULL;
634 }
635 }
636
637 data->evt_skb = skb;
a5e50d5b 638 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 639
640 return err;
1ffa4ad0
MH		 641}
642
643static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
644{
803b5836 645 struct sk_buff *skb;
a5e50d5b 646 unsigned long flags;
803b5836
MH		 647 int err = 0;
648
a5e50d5b 649 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 650 skb = data->acl_skb;
651
652 while (count) {
653 int len;
654
655 if (!skb) {
656 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
657 if (!skb) {
658 err = -ENOMEM;
659 break;
660 }
661
618e8bc2
MH		 662 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
663 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 664 }
665
618e8bc2 666 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 667 skb_put_data(skb, buffer, len);
803b5836
MH		 668
669 count -= len;
670 buffer += len;
618e8bc2 671 hci_skb_expect(skb) -= len;
803b5836
MH		 672
673 if (skb->len == HCI_ACL_HDR_SIZE) {
674 __le16 dlen = hci_acl_hdr(skb)->dlen;
675
676 /* Complete ACL header */
618e8bc2 677 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 678
618e8bc2 679 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 680 kfree_skb(skb);
681 skb = NULL;
682
683 err = -EILSEQ;
684 break;
685 }
686 }
687
618e8bc2 688 if (!hci_skb_expect(skb)) {
803b5836
MH		 689 /* Complete frame */
690 hci_recv_frame(data->hdev, skb);
691 skb = NULL;
692 }
693 }
694
695 data->acl_skb = skb;
a5e50d5b 696 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 697
698 return err;
1ffa4ad0
MH		 699}
700
701static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
702{
803b5836 703 struct sk_buff *skb;
a5e50d5b 704 unsigned long flags;
803b5836
MH		 705 int err = 0;
706
a5e50d5b 707 spin_lock_irqsave(&data->rxlock, flags);
803b5836
MH		 708 skb = data->sco_skb;
709
710 while (count) {
711 int len;
712
713 if (!skb) {
714 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
715 if (!skb) {
716 err = -ENOMEM;
717 break;
718 }
719
618e8bc2
MH		 720 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
721 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 722 }
723
618e8bc2 724 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 725 skb_put_data(skb, buffer, len);
803b5836
MH		 726
727 count -= len;
728 buffer += len;
618e8bc2 729 hci_skb_expect(skb) -= len;
803b5836
MH		 730
731 if (skb->len == HCI_SCO_HDR_SIZE) {
732 /* Complete SCO header */
618e8bc2 733 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 734
618e8bc2 735 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 736 kfree_skb(skb);
737 skb = NULL;
738
739 err = -EILSEQ;
740 break;
741 }
742 }
743
618e8bc2 744 if (!hci_skb_expect(skb)) {
803b5836
MH		 745 /* Complete frame */
746 hci_recv_frame(data->hdev, skb);
747 skb = NULL;
748 }
749 }
750
751 data->sco_skb = skb;
a5e50d5b 752 spin_unlock_irqrestore(&data->rxlock, flags);
803b5836
MH		 753
754 return err;
1ffa4ad0
MH		 755}
756
5e23b923
MH		 757static void btusb_intr_complete(struct urb *urb)
758{
759 struct hci_dev *hdev = urb->context;
155961e8 760 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 761 int err;
762
89e7533d
MH		 763 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
764 urb->actual_length);
5e23b923
MH		 765
766 if (!test_bit(HCI_RUNNING, &hdev->flags))
767 return;
768
769 if (urb->status == 0) {
9bfa35fe
MH		 770 hdev->stat.byte_rx += urb->actual_length;
771
1ffa4ad0
MH		 772 if (btusb_recv_intr(data, urb->transfer_buffer,
773 urb->actual_length) < 0) {
2064ee33 774 bt_dev_err(hdev, "corrupted event packet");
5e23b923
MH		 775 hdev->stat.err_rx++;
776 }
85560c4a
CC		 777 } else if (urb->status == -ENOENT) {
778 /* Avoid suspend failed when usb_kill_urb */
779 return;
5e23b923
MH		 780 }
781
782 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
783 return;
784
7bee549e 785 usb_mark_last_busy(data->udev);
5e23b923
MH		 786 usb_anchor_urb(urb, &data->intr_anchor);
787
788 err = usb_submit_urb(urb, GFP_ATOMIC);
789 if (err < 0) {
4935f1c1 790 /* -EPERM: urb is being killed;
d98422cb
DR		 791 * -ENODEV: device got disconnected
792 */
4935f1c1 793 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 794 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
795 urb, -err);
5e23b923
MH		 796 usb_unanchor_urb(urb);
797 }
798}
799
2eda66f4 800static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 801{
155961e8 802 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 803 struct urb *urb;
804 unsigned char *buf;
805 unsigned int pipe;
806 int err, size;
807
808 BT_DBG("%s", hdev->name);
809
9bfa35fe
MH		 810 if (!data->intr_ep)
811 return -ENODEV;
812
2eda66f4 813 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 814 if (!urb)
815 return -ENOMEM;
816
817 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
818
2eda66f4 819 buf = kmalloc(size, mem_flags);
5e23b923
MH		 820 if (!buf) {
821 usb_free_urb(urb);
822 return -ENOMEM;
823 }
824
825 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
826
827 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 828 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 829
830 urb->transfer_flags |= URB_FREE_BUFFER;
831
832 usb_anchor_urb(urb, &data->intr_anchor);
833
2eda66f4 834 err = usb_submit_urb(urb, mem_flags);
5e23b923 835 if (err < 0) {
d4b8d1c9 836 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 837 bt_dev_err(hdev, "urb %p submission failed (%d)",
838 urb, -err);
5e23b923 839 usb_unanchor_urb(urb);
5e23b923
MH		 840 }
841
842 usb_free_urb(urb);
843
844 return err;
845}
846
847static void btusb_bulk_complete(struct urb *urb)
848{
849 struct hci_dev *hdev = urb->context;
155961e8 850 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 851 int err;
852
89e7533d
MH		 853 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
854 urb->actual_length);
5e23b923
MH		 855
856 if (!test_bit(HCI_RUNNING, &hdev->flags))
857 return;
858
859 if (urb->status == 0) {
9bfa35fe
MH		 860 hdev->stat.byte_rx += urb->actual_length;
861
2cbd3f5c 862 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 863 urb->actual_length) < 0) {
2064ee33 864 bt_dev_err(hdev, "corrupted ACL packet");
5e23b923
MH		 865 hdev->stat.err_rx++;
866 }
85560c4a
CC		 867 } else if (urb->status == -ENOENT) {
868 /* Avoid suspend failed when usb_kill_urb */
869 return;
5e23b923
MH		 870 }
871
872 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
873 return;
874
875 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 876 usb_mark_last_busy(data->udev);
5e23b923
MH		 877
878 err = usb_submit_urb(urb, GFP_ATOMIC);
879 if (err < 0) {
4935f1c1 880 /* -EPERM: urb is being killed;
d98422cb
DR		 881 * -ENODEV: device got disconnected
882 */
4935f1c1 883 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 884 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
885 urb, -err);
5e23b923
MH		 886 usb_unanchor_urb(urb);
887 }
888}
889
2eda66f4 890static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 891{
155961e8 892 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 893 struct urb *urb;
894 unsigned char *buf;
895 unsigned int pipe;
290ba200 896 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 897
898 BT_DBG("%s", hdev->name);
899
9bfa35fe
MH		 900 if (!data->bulk_rx_ep)
901 return -ENODEV;
902
2eda66f4 903 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 904 if (!urb)
905 return -ENOMEM;
906
2eda66f4 907 buf = kmalloc(size, mem_flags);
5e23b923
MH		 908 if (!buf) {
909 usb_free_urb(urb);
910 return -ENOMEM;
911 }
912
913 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
914
89e7533d
MH		 915 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
916 btusb_bulk_complete, hdev);
5e23b923
MH		 917
918 urb->transfer_flags |= URB_FREE_BUFFER;
919
7bee549e 920 usb_mark_last_busy(data->udev);
5e23b923
MH		 921 usb_anchor_urb(urb, &data->bulk_anchor);
922
2eda66f4 923 err = usb_submit_urb(urb, mem_flags);
5e23b923 924 if (err < 0) {
d4b8d1c9 925 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 926 bt_dev_err(hdev, "urb %p submission failed (%d)",
927 urb, -err);
5e23b923 928 usb_unanchor_urb(urb);
5e23b923
MH		 929 }
930
931 usb_free_urb(urb);
932
933 return err;
934}
935
9bfa35fe
MH		 936static void btusb_isoc_complete(struct urb *urb)
937{
938 struct hci_dev *hdev = urb->context;
155961e8 939 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 940 int i, err;
941
89e7533d
MH		 942 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
943 urb->actual_length);
9bfa35fe
MH		 944
945 if (!test_bit(HCI_RUNNING, &hdev->flags))
946 return;
947
948 if (urb->status == 0) {
949 for (i = 0; i < urb->number_of_packets; i++) {
950 unsigned int offset = urb->iso_frame_desc[i].offset;
951 unsigned int length = urb->iso_frame_desc[i].actual_length;
952
953 if (urb->iso_frame_desc[i].status)
954 continue;
955
956 hdev->stat.byte_rx += length;
957
1ffa4ad0
MH		 958 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
959 length) < 0) {
2064ee33 960 bt_dev_err(hdev, "corrupted SCO packet");
9bfa35fe
MH		 961 hdev->stat.err_rx++;
962 }
963 }
85560c4a
CC		 964 } else if (urb->status == -ENOENT) {
965 /* Avoid suspend failed when usb_kill_urb */
966 return;
9bfa35fe
MH		 967 }
968
969 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
970 return;
971
972 usb_anchor_urb(urb, &data->isoc_anchor);
973
974 err = usb_submit_urb(urb, GFP_ATOMIC);
975 if (err < 0) {
4935f1c1 976 /* -EPERM: urb is being killed;
d98422cb
DR		 977 * -ENODEV: device got disconnected
978 */
4935f1c1 979 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 980 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
981 urb, -err);
9bfa35fe
MH		 982 usb_unanchor_urb(urb);
983 }
984}
985
42b16b3f 986static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 987{
988 int i, offset = 0;
989
990 BT_DBG("len %d mtu %d", len, mtu);
991
992 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
993 i++, offset += mtu, len -= mtu) {
994 urb->iso_frame_desc[i].offset = offset;
995 urb->iso_frame_desc[i].length = mtu;
996 }
997
998 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
999 urb->iso_frame_desc[i].offset = offset;
1000 urb->iso_frame_desc[i].length = len;
1001 i++;
1002 }
1003
1004 urb->number_of_packets = i;
1005}
1006
2eda66f4 1007static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 1008{
155961e8 1009 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1010 struct urb *urb;
1011 unsigned char *buf;
1012 unsigned int pipe;
1013 int err, size;
1014
1015 BT_DBG("%s", hdev->name);
1016
1017 if (!data->isoc_rx_ep)
1018 return -ENODEV;
1019
2eda66f4 1020 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 1021 if (!urb)
1022 return -ENOMEM;
1023
1024 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1025 BTUSB_MAX_ISOC_FRAMES;
1026
2eda66f4 1027 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 1028 if (!buf) {
1029 usb_free_urb(urb);
1030 return -ENOMEM;
1031 }
1032
1033 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1034
fa0fb93f 1035 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 1036 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 1037
89e7533d 1038 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 1039
1040 __fill_isoc_descriptor(urb, size,
89e7533d 1041 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 1042
1043 usb_anchor_urb(urb, &data->isoc_anchor);
1044
2eda66f4 1045 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 1046 if (err < 0) {
d4b8d1c9 1047 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1048 bt_dev_err(hdev, "urb %p submission failed (%d)",
1049 urb, -err);
9bfa35fe 1050 usb_unanchor_urb(urb);
9bfa35fe
MH		 1051 }
1052
1053 usb_free_urb(urb);
1054
1055 return err;
1056}
1057
9d08f504
MH		 1058static void btusb_diag_complete(struct urb *urb)
1059{
1060 struct hci_dev *hdev = urb->context;
1061 struct btusb_data *data = hci_get_drvdata(hdev);
1062 int err;
1063
1064 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1065 urb->actual_length);
1066
1067 if (urb->status == 0) {
1068 struct sk_buff *skb;
1069
1070 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1071 if (skb) {
59ae1d12
JB		 1072 skb_put_data(skb, urb->transfer_buffer,
1073 urb->actual_length);
9d08f504
MH		 1074 hci_recv_diag(hdev, skb);
1075 }
1076 } else if (urb->status == -ENOENT) {
1077 /* Avoid suspend failed when usb_kill_urb */
1078 return;
1079 }
1080
1081 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1082 return;
1083
1084 usb_anchor_urb(urb, &data->diag_anchor);
1085 usb_mark_last_busy(data->udev);
1086
1087 err = usb_submit_urb(urb, GFP_ATOMIC);
1088 if (err < 0) {
1089 /* -EPERM: urb is being killed;
d98422cb
DR		 1090 * -ENODEV: device got disconnected
1091 */
9d08f504 1092 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1093 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1094 urb, -err);
9d08f504
MH		 1095 usb_unanchor_urb(urb);
1096 }
1097}
1098
1099static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1100{
1101 struct btusb_data *data = hci_get_drvdata(hdev);
1102 struct urb *urb;
1103 unsigned char *buf;
1104 unsigned int pipe;
1105 int err, size = HCI_MAX_FRAME_SIZE;
1106
1107 BT_DBG("%s", hdev->name);
1108
1109 if (!data->diag_rx_ep)
1110 return -ENODEV;
1111
1112 urb = usb_alloc_urb(0, mem_flags);
1113 if (!urb)
1114 return -ENOMEM;
1115
1116 buf = kmalloc(size, mem_flags);
1117 if (!buf) {
1118 usb_free_urb(urb);
1119 return -ENOMEM;
1120 }
1121
1122 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1123
1124 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1125 btusb_diag_complete, hdev);
1126
1127 urb->transfer_flags |= URB_FREE_BUFFER;
1128
1129 usb_mark_last_busy(data->udev);
1130 usb_anchor_urb(urb, &data->diag_anchor);
1131
1132 err = usb_submit_urb(urb, mem_flags);
1133 if (err < 0) {
1134 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1135 bt_dev_err(hdev, "urb %p submission failed (%d)",
1136 urb, -err);
9d08f504
MH		 1137 usb_unanchor_urb(urb);
1138 }
1139
1140 usb_free_urb(urb);
1141
1142 return err;
1143}
1144
5e23b923 1145static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 1146{
1147 struct sk_buff *skb = urb->context;
89e7533d 1148 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 1149 struct btusb_data *data = hci_get_drvdata(hdev);
a5e50d5b 1150 unsigned long flags;
7bee549e 1151
89e7533d
MH		 1152 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1153 urb->actual_length);
7bee549e
ON		 1154
1155 if (!test_bit(HCI_RUNNING, &hdev->flags))
1156 goto done;
1157
1158 if (!urb->status)
1159 hdev->stat.byte_tx += urb->transfer_buffer_length;
1160 else
1161 hdev->stat.err_tx++;
1162
1163done:
a5e50d5b 1164 spin_lock_irqsave(&data->txlock, flags);
7bee549e 1165 data->tx_in_flight--;
a5e50d5b 1166 spin_unlock_irqrestore(&data->txlock, flags);
7bee549e
ON		 1167
1168 kfree(urb->setup_packet);
1169
1170 kfree_skb(skb);
1171}
1172
1173static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1174{
1175 struct sk_buff *skb = urb->context;
89e7533d 1176 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1177
89e7533d
MH		 1178 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1179 urb->actual_length);
5e23b923
MH		 1180
1181 if (!test_bit(HCI_RUNNING, &hdev->flags))
1182 goto done;
1183
1184 if (!urb->status)
1185 hdev->stat.byte_tx += urb->transfer_buffer_length;
1186 else
1187 hdev->stat.err_tx++;
1188
1189done:
1190 kfree(urb->setup_packet);
1191
1192 kfree_skb(skb);
1193}
1194
1195static int btusb_open(struct hci_dev *hdev)
1196{
155961e8 1197 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1198 int err;
1199
1200 BT_DBG("%s", hdev->name);
1201
c7e163fe
EH		 1202 err = usb_autopm_get_interface(data->intf);
1203 if (err < 0)
1204 return err;
1205
ace31982
KBYT		 1206 /* Patching USB firmware files prior to starting any URBs of HCI path
1207 * It is more safe to use USB bulk channel for downloading USB patch
1208 */
1209 if (data->setup_on_usb) {
1210 err = data->setup_on_usb(hdev);
eb50042f 1211 if (err < 0)
3d44a6fd 1212 goto setup_fail;
ace31982
KBYT		 1213 }
1214
7bee549e
ON		 1215 data->intf->needs_remote_wakeup = 1;
1216
9e45524a
AL		 1217 /* Disable device remote wakeup when host is suspended
1218 * For Realtek chips, global suspend without
1219 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1220 */
1221 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1222 device_wakeup_disable(&data->udev->dev);
1223
5e23b923 1224 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1225 goto done;
5e23b923 1226
2eda66f4 1227 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1228 if (err < 0)
1229 goto failed;
1230
1231 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1232 if (err < 0) {
43c2e57f
MH		 1233 usb_kill_anchored_urbs(&data->intr_anchor);
1234 goto failed;
5e23b923
MH		 1235 }
1236
43c2e57f
MH		 1237 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1238 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1239
9d08f504
MH		 1240 if (data->diag) {
1241 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1242 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1243 }
1244
7bee549e
ON		 1245done:
1246 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1247 return 0;
1248
1249failed:
1250 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3d44a6fd 1251setup_fail:
7bee549e 1252 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1253 return err;
1254}
1255
7bee549e
ON		 1256static void btusb_stop_traffic(struct btusb_data *data)
1257{
1258 usb_kill_anchored_urbs(&data->intr_anchor);
1259 usb_kill_anchored_urbs(&data->bulk_anchor);
1260 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1261 usb_kill_anchored_urbs(&data->diag_anchor);
a1c49c43 1262 usb_kill_anchored_urbs(&data->ctrl_anchor);
7bee549e
ON		 1263}
1264
5e23b923
MH		 1265static int btusb_close(struct hci_dev *hdev)
1266{
155961e8 1267 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1268 int err;
5e23b923
MH		 1269
1270 BT_DBG("%s", hdev->name);
1271
e8c3c3d2 1272 cancel_work_sync(&data->work);
404291ac 1273 cancel_work_sync(&data->waker);
e8c3c3d2 1274
9bfa35fe 1275 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1276 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1277 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1278 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1279
1280 btusb_stop_traffic(data);
803b5836
MH		 1281 btusb_free_frags(data);
1282
7bee549e
ON		 1283 err = usb_autopm_get_interface(data->intf);
1284 if (err < 0)
7b8e2c1d 1285 goto failed;
7bee549e
ON		 1286
1287 data->intf->needs_remote_wakeup = 0;
9e45524a
AL		 1288
1289 /* Enable remote wake up for auto-suspend */
1290 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1291 data->intf->needs_remote_wakeup = 1;
1292
7bee549e 1293 usb_autopm_put_interface(data->intf);
5e23b923 1294
7b8e2c1d
ON		 1295failed:
1296 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1297 return 0;
1298}
1299
1300static int btusb_flush(struct hci_dev *hdev)
1301{
155961e8 1302 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1303
1304 BT_DBG("%s", hdev->name);
1305
1306 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1307 btusb_free_frags(data);
5e23b923
MH		 1308
1309 return 0;
1310}
1311
047b2ec8 1312static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1313{
155961e8 1314 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1315 struct usb_ctrlrequest *dr;
1316 struct urb *urb;
1317 unsigned int pipe;
5e23b923 1318
047b2ec8
MH		 1319 urb = usb_alloc_urb(0, GFP_KERNEL);
1320 if (!urb)
1321 return ERR_PTR(-ENOMEM);
5e23b923 1322
047b2ec8
MH		 1323 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1324 if (!dr) {
1325 usb_free_urb(urb);
1326 return ERR_PTR(-ENOMEM);
1327 }
5e23b923 1328
047b2ec8 1329 dr->bRequestType = data->cmdreq_type;
893ba544 1330 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1331 dr->wIndex = 0;
1332 dr->wValue = 0;
1333 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1334
047b2ec8 1335 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1336
89e7533d 1337 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1338 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1339
89e7533d 1340 skb->dev = (void *)hdev;
5e23b923 1341
047b2ec8
MH		 1342 return urb;
1343}
5e23b923 1344
047b2ec8
MH		 1345static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1346{
1347 struct btusb_data *data = hci_get_drvdata(hdev);
1348 struct urb *urb;
1349 unsigned int pipe;
5e23b923 1350
047b2ec8
MH		 1351 if (!data->bulk_tx_ep)
1352 return ERR_PTR(-ENODEV);
9bfa35fe 1353
047b2ec8
MH		 1354 urb = usb_alloc_urb(0, GFP_KERNEL);
1355 if (!urb)
1356 return ERR_PTR(-ENOMEM);
5e23b923 1357
047b2ec8 1358 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1359
047b2ec8
MH		 1360 usb_fill_bulk_urb(urb, data->udev, pipe,
1361 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1362
89e7533d 1363 skb->dev = (void *)hdev;
5e23b923 1364
047b2ec8
MH		 1365 return urb;
1366}
9bfa35fe 1367
047b2ec8
MH		 1368static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1369{
1370 struct btusb_data *data = hci_get_drvdata(hdev);
1371 struct urb *urb;
1372 unsigned int pipe;
9bfa35fe 1373
047b2ec8
MH		 1374 if (!data->isoc_tx_ep)
1375 return ERR_PTR(-ENODEV);
9bfa35fe 1376
047b2ec8
MH		 1377 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1378 if (!urb)
1379 return ERR_PTR(-ENOMEM);
9bfa35fe 1380
047b2ec8 1381 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1382
047b2ec8
MH		 1383 usb_fill_int_urb(urb, data->udev, pipe,
1384 skb->data, skb->len, btusb_isoc_tx_complete,
1385 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1386
047b2ec8 1387 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1388
047b2ec8
MH		 1389 __fill_isoc_descriptor(urb, skb->len,
1390 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1391
89e7533d 1392 skb->dev = (void *)hdev;
047b2ec8
MH		 1393
1394 return urb;
1395}
1396
1397static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1398{
1399 struct btusb_data *data = hci_get_drvdata(hdev);
1400 int err;
7bee549e 1401
5e23b923
MH		 1402 usb_anchor_urb(urb, &data->tx_anchor);
1403
e9753eff 1404 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1405 if (err < 0) {
5a9b80e2 1406 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1407 bt_dev_err(hdev, "urb %p submission failed (%d)",
1408 urb, -err);
5e23b923
MH		 1409 kfree(urb->setup_packet);
1410 usb_unanchor_urb(urb);
7bee549e
ON		 1411 } else {
1412 usb_mark_last_busy(data->udev);
5e23b923
MH		 1413 }
1414
54a8a79c 1415 usb_free_urb(urb);
5e23b923
MH		 1416 return err;
1417}
1418
047b2ec8
MH		 1419static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1420{
1421 struct btusb_data *data = hci_get_drvdata(hdev);
1422 unsigned long flags;
1423 bool suspending;
1424
1425 spin_lock_irqsave(&data->txlock, flags);
1426 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1427 if (!suspending)
1428 data->tx_in_flight++;
1429 spin_unlock_irqrestore(&data->txlock, flags);
1430
1431 if (!suspending)
1432 return submit_tx_urb(hdev, urb);
1433
1434 usb_anchor_urb(urb, &data->deferred);
1435 schedule_work(&data->waker);
1436
1437 usb_free_urb(urb);
1438 return 0;
1439}
1440
1441static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1442{
1443 struct urb *urb;
1444
1445 BT_DBG("%s", hdev->name);
1446
618e8bc2 1447 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1448 case HCI_COMMAND_PKT:
1449 urb = alloc_ctrl_urb(hdev, skb);
1450 if (IS_ERR(urb))
1451 return PTR_ERR(urb);
1452
1453 hdev->stat.cmd_tx++;
1454 return submit_or_queue_tx_urb(hdev, urb);
1455
1456 case HCI_ACLDATA_PKT:
1457 urb = alloc_bulk_urb(hdev, skb);
1458 if (IS_ERR(urb))
1459 return PTR_ERR(urb);
1460
1461 hdev->stat.acl_tx++;
1462 return submit_or_queue_tx_urb(hdev, urb);
1463
1464 case HCI_SCODATA_PKT:
1465 if (hci_conn_num(hdev, SCO_LINK) < 1)
1466 return -ENODEV;
1467
1468 urb = alloc_isoc_urb(hdev, skb);
1469 if (IS_ERR(urb))
1470 return PTR_ERR(urb);
1471
1472 hdev->stat.sco_tx++;
1473 return submit_tx_urb(hdev, urb);
1474 }
1475
1476 return -EILSEQ;
1477}
1478
5e23b923
MH		 1479static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1480{
155961e8 1481 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1482
1483 BT_DBG("%s evt %d", hdev->name, evt);
1484
014f7bc7
MH		 1485 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1486 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1487 schedule_work(&data->work);
a780efa8 1488 }
5e23b923
MH		 1489}
1490
42b16b3f 1491static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1492{
155961e8 1493 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1494 struct usb_interface *intf = data->isoc;
1495 struct usb_endpoint_descriptor *ep_desc;
1496 int i, err;
1497
1498 if (!data->isoc)
1499 return -ENODEV;
1500
459232fc 1501 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
9bfa35fe 1502 if (err < 0) {
2064ee33 1503 bt_dev_err(hdev, "setting interface failed (%d)", -err);
9bfa35fe
MH		 1504 return err;
1505 }
1506
1507 data->isoc_altsetting = altsetting;
1508
1509 data->isoc_tx_ep = NULL;
1510 data->isoc_rx_ep = NULL;
1511
1512 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1513 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1514
1515 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1516 data->isoc_tx_ep = ep_desc;
1517 continue;
1518 }
1519
1520 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1521 data->isoc_rx_ep = ep_desc;
1522 continue;
1523 }
1524 }
1525
1526 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2064ee33 1527 bt_dev_err(hdev, "invalid SCO descriptors");
9bfa35fe
MH		 1528 return -ENODEV;
1529 }
1530
1531 return 0;
1532}
1533
5e23b923
MH		 1534static void btusb_work(struct work_struct *work)
1535{
1536 struct btusb_data *data = container_of(work, struct btusb_data, work);
1537 struct hci_dev *hdev = data->hdev;
f4001d28 1538 int new_alts;
7bee549e 1539 int err;
5e23b923 1540
014f7bc7 1541 if (data->sco_num > 0) {
08b8b6c4 1542 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1543 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1544 if (err < 0) {
1545 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1546 usb_kill_anchored_urbs(&data->isoc_anchor);
1547 return;
1548 }
1549
08b8b6c4 1550 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1551 }
f4001d28
MA		 1552
1553 if (hdev->voice_setting & 0x0020) {
1554 static const int alts[3] = { 2, 4, 5 };
89e7533d 1555
014f7bc7 1556 new_alts = alts[data->sco_num - 1];
f4001d28 1557 } else {
014f7bc7 1558 new_alts = data->sco_num;
f4001d28
MA		 1559 }
1560
1561 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1562 unsigned long flags;
1563
9bfa35fe
MH		 1564 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1565 usb_kill_anchored_urbs(&data->isoc_anchor);
1566
8f9d02f4
KP		 1567 /* When isochronous alternate setting needs to be
1568 * changed, because SCO connection has been added
1569 * or removed, a packet fragment may be left in the
1570 * reassembling state. This could lead to wrongly
1571 * assembled fragments.
1572 *
1573 * Clear outstanding fragment when selecting a new
1574 * alternate setting.
1575 */
f6fc86f2 1576 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1577 kfree_skb(data->sco_skb);
1578 data->sco_skb = NULL;
f6fc86f2 1579 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1580
f4001d28 1581 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1582 return;
1583 }
1584
1585 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1586 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1587 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1588 else
2eda66f4 1589 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1590 }
1591 } else {
1592 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1593 usb_kill_anchored_urbs(&data->isoc_anchor);
1594
1595 __set_isoc_interface(hdev, 0);
08b8b6c4 1596 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1597 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1598 }
1599}
1600
7bee549e
ON		 1601static void btusb_waker(struct work_struct *work)
1602{
1603 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1604 int err;
1605
1606 err = usb_autopm_get_interface(data->intf);
1607 if (err < 0)
1608 return;
1609
1610 usb_autopm_put_interface(data->intf);
1611}
1612
9f8f962c
MH		 1613static int btusb_setup_bcm92035(struct hci_dev *hdev)
1614{
1615 struct sk_buff *skb;
1616 u8 val = 0x00;
1617
1618 BT_DBG("%s", hdev->name);
1619
1620 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1621 if (IS_ERR(skb))
2064ee33 1622 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
9f8f962c
MH		 1623 else
1624 kfree_skb(skb);
1625
1626 return 0;
1627}
1628
81cac64b
MH		 1629static int btusb_setup_csr(struct hci_dev *hdev)
1630{
1631 struct hci_rp_read_local_version *rp;
1632 struct sk_buff *skb;
81cac64b
MH		 1633
1634 BT_DBG("%s", hdev->name);
1635
7cd84d72
MH		 1636 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1637 HCI_INIT_TIMEOUT);
1638 if (IS_ERR(skb)) {
1639 int err = PTR_ERR(skb);
2064ee33 1640 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
7cd84d72
MH		 1641 return err;
1642 }
1643
1644 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33 1645 bt_dev_err(hdev, "CSR: Local version length mismatch");
7cd84d72
MH		 1646 kfree_skb(skb);
1647 return -EIO;
1648 }
81cac64b 1649
89e7533d 1650 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1651
6cafcd95
JH		 1652 /* Detect controllers which aren't real CSR ones. */
1653 if (le16_to_cpu(rp->manufacturer) != 10 ||
1654 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1655 /* Clear the reset quirk since this is not an actual
1656 * early Bluetooth 1.1 device from CSR.
1657 */
1658 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1659
9641d343
MH		 1660 /* These fake CSR controllers have all a broken
1661 * stored link key handling and so just disable it.
1662 */
1663 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1664 }
81cac64b
MH		 1665
1666 kfree_skb(skb);
1667
9641d343 1668 return 0;
81cac64b
MH		 1669}
1670
dffd30ee 1671static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1672 struct intel_version *ver)
dffd30ee
THJA		 1673{
1674 const struct firmware *fw;
1675 char fwname[64];
1676 int ret;
1677
1678 snprintf(fwname, sizeof(fwname),
1679 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1680 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1681 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1682 ver->fw_build_ww, ver->fw_build_yy);
1683
1684 ret = request_firmware(&fw, fwname, &hdev->dev);
1685 if (ret < 0) {
1686 if (ret == -EINVAL) {
85418fef
MH		 1687 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1688 ret);
dffd30ee
THJA		 1689 return NULL;
1690 }
1691
85418fef
MH		 1692 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1693 fwname, ret);
dffd30ee
THJA		 1694
1695 /* If the correct firmware patch file is not found, use the
1696 * default firmware patch file instead
1697 */
1698 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1699 ver->hw_platform, ver->hw_variant);
1700 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
85418fef
MH		 1701 bt_dev_err(hdev, "failed to open default fw file: %s",
1702 fwname);
dffd30ee
THJA		 1703 return NULL;
1704 }
1705 }
1706
2064ee33 1707 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
dffd30ee
THJA		 1708
1709 return fw;
1710}
1711
1712static int btusb_setup_intel_patching(struct hci_dev *hdev,
1713 const struct firmware *fw,
1714 const u8 **fw_ptr, int *disable_patch)
1715{
1716 struct sk_buff *skb;
1717 struct hci_command_hdr *cmd;
1718 const u8 *cmd_param;
1719 struct hci_event_hdr *evt = NULL;
1720 const u8 *evt_param = NULL;
1721 int remain = fw->size - (*fw_ptr - fw->data);
1722
1723 /* The first byte indicates the types of the patch command or event.
1724 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1725 * in the current firmware buffer doesn't start with 0x01 or
1726 * the size of remain buffer is smaller than HCI command header,
1727 * the firmware file is corrupted and it should stop the patching
1728 * process.
1729 */
1730 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
85418fef 1731 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
dffd30ee
THJA		 1732 return -EINVAL;
1733 }
1734 (*fw_ptr)++;
1735 remain--;
1736
1737 cmd = (struct hci_command_hdr *)(*fw_ptr);
1738 *fw_ptr += sizeof(*cmd);
1739 remain -= sizeof(*cmd);
1740
1741 /* Ensure that the remain firmware data is long enough than the length
1742 * of command parameter. If not, the firmware file is corrupted.
1743 */
1744 if (remain < cmd->plen) {
85418fef 1745 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
dffd30ee
THJA		 1746 return -EFAULT;
1747 }
1748
1749 /* If there is a command that loads a patch in the firmware
1750 * file, then enable the patch upon success, otherwise just
1751 * disable the manufacturer mode, for example patch activation
1752 * is not required when the default firmware patch file is used
1753 * because there are no patch data to load.
1754 */
1755 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1756 *disable_patch = 0;
1757
1758 cmd_param = *fw_ptr;
1759 *fw_ptr += cmd->plen;
1760 remain -= cmd->plen;
1761
1762 /* This reads the expected events when the above command is sent to the
1763 * device. Some vendor commands expects more than one events, for
1764 * example command status event followed by vendor specific event.
1765 * For this case, it only keeps the last expected event. so the command
1766 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1767 * last expected event.
1768 */
1769 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1770 (*fw_ptr)++;
1771 remain--;
1772
1773 evt = (struct hci_event_hdr *)(*fw_ptr);
1774 *fw_ptr += sizeof(*evt);
1775 remain -= sizeof(*evt);
1776
1777 if (remain < evt->plen) {
85418fef 1778 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
dffd30ee
THJA		 1779 return -EFAULT;
1780 }
1781
1782 evt_param = *fw_ptr;
1783 *fw_ptr += evt->plen;
1784 remain -= evt->plen;
1785 }
1786
1787 /* Every HCI commands in the firmware file has its correspond event.
1788 * If event is not found or remain is smaller than zero, the firmware
1789 * file is corrupted.
1790 */
1791 if (!evt || !evt_param || remain < 0) {
85418fef 1792 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
dffd30ee
THJA		 1793 return -EFAULT;
1794 }
1795
1796 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1797 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1798 if (IS_ERR(skb)) {
85418fef
MH		 1799 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1800 cmd->opcode, PTR_ERR(skb));
d9c78e97 1801 return PTR_ERR(skb);
dffd30ee
THJA		 1802 }
1803
1804 /* It ensures that the returned event matches the event data read from
1805 * the firmware file. At fist, it checks the length and then
1806 * the contents of the event.
1807 */
1808 if (skb->len != evt->plen) {
85418fef
MH		 1809 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1810 le16_to_cpu(cmd->opcode));
dffd30ee
THJA		 1811 kfree_skb(skb);
1812 return -EFAULT;
1813 }
1814
1815 if (memcmp(skb->data, evt_param, evt->plen)) {
85418fef
MH		 1816 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1817 le16_to_cpu(cmd->opcode));
dffd30ee
THJA		 1818 kfree_skb(skb);
1819 return -EFAULT;
1820 }
1821 kfree_skb(skb);
1822
1823 return 0;
1824}
1825
1826static int btusb_setup_intel(struct hci_dev *hdev)
1827{
1828 struct sk_buff *skb;
1829 const struct firmware *fw;
1830 const u8 *fw_ptr;
28dc4b92 1831 int disable_patch, err;
6c483de1 1832 struct intel_version ver;
dffd30ee 1833
dffd30ee
THJA		 1834 BT_DBG("%s", hdev->name);
1835
1836 /* The controller has a bug with the first HCI command sent to it
1837 * returning number of completed commands as zero. This would stall the
1838 * command processing in the Bluetooth core.
1839 *
1840 * As a workaround, send HCI Reset command first which will reset the
1841 * number of completed commands and allow normal command processing
1842 * from now on.
1843 */
1844 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1845 if (IS_ERR(skb)) {
85418fef
MH		 1846 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1847 PTR_ERR(skb));
d9c78e97 1848 return PTR_ERR(skb);
dffd30ee
THJA		 1849 }
1850 kfree_skb(skb);
1851
1852 /* Read Intel specific controller version first to allow selection of
1853 * which firmware file to load.
1854 *
1855 * The returned information are hardware variant and revision plus
1856 * firmware variant, revision and build number.
1857 */
6c483de1
LP		 1858 err = btintel_read_version(hdev, &ver);
1859 if (err)
1860 return err;
dffd30ee 1861
2064ee33
MH		 1862 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1863 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1864 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1865 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1866
1867 /* fw_patch_num indicates the version of patch the device currently
1868 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1869 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1870 */
6c483de1 1871 if (ver.fw_patch_num) {
2064ee33
MH		 1872 bt_dev_info(hdev, "Intel device is already patched. "
1873 "patch num: %02x", ver.fw_patch_num);
213445b2 1874 goto complete;
dffd30ee
THJA		 1875 }
1876
1877 /* Opens the firmware patch file based on the firmware version read
1878 * from the controller. If it fails to open the matching firmware
1879 * patch file, it tries to open the default firmware patch file.
1880 * If no patch file is found, allow the device to operate without
1881 * a patch.
1882 */
6c483de1
LP		 1883 fw = btusb_setup_intel_get_fw(hdev, &ver);
1884 if (!fw)
213445b2 1885 goto complete;
dffd30ee
THJA		 1886 fw_ptr = fw->data;
1887
28dc4b92 1888 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1889 * Only while this mode is enabled, the driver can download the
1890 * firmware patch data and configuration parameters.
1891 */
28dc4b92
LP		 1892 err = btintel_enter_mfg(hdev);
1893 if (err) {
dffd30ee 1894 release_firmware(fw);
28dc4b92 1895 return err;
dffd30ee
THJA		 1896 }
1897
dffd30ee
THJA		 1898 disable_patch = 1;
1899
1900 /* The firmware data file consists of list of Intel specific HCI
1901 * commands and its expected events. The first byte indicates the
1902 * type of the message, either HCI command or HCI event.
1903 *
1904 * It reads the command and its expected event from the firmware file,
1905 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1906 * the returned event is compared with the event read from the firmware
1907 * file and it will continue until all the messages are downloaded to
1908 * the controller.
1909 *
1910 * Once the firmware patching is completed successfully,
1911 * the manufacturer mode is disabled with reset and activating the
1912 * downloaded patch.
1913 *
1914 * If the firmware patching fails, the manufacturer mode is
1915 * disabled with reset and deactivating the patch.
1916 *
1917 * If the default patch file is used, no reset is done when disabling
1918 * the manufacturer.
1919 */
1920 while (fw->size > fw_ptr - fw->data) {
1921 int ret;
1922
1923 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1924 &disable_patch);
1925 if (ret < 0)
1926 goto exit_mfg_deactivate;
1927 }
1928
1929 release_firmware(fw);
1930
1931 if (disable_patch)
1932 goto exit_mfg_disable;
1933
1934 /* Patching completed successfully and disable the manufacturer mode
1935 * with reset and activate the downloaded firmware patches.
1936 */
28dc4b92
LP		 1937 err = btintel_exit_mfg(hdev, true, true);
1938 if (err)
1939 return err;
dffd30ee 1940
905d7b13
SG		 1941 /* Need build number for downloaded fw patches in
1942 * every power-on boot
1943 */
1944 err = btintel_read_version(hdev, &ver);
1945 if (err)
1946 return err;
1947 bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated",
1948 ver.fw_patch_num);
dffd30ee 1949
213445b2 1950 goto complete;
dffd30ee
THJA		 1951
1952exit_mfg_disable:
1953 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1954 err = btintel_exit_mfg(hdev, false, false);
1955 if (err)
1956 return err;
dffd30ee 1957
2064ee33 1958 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1959
213445b2 1960 goto complete;
dffd30ee
THJA		 1961
1962exit_mfg_deactivate:
1963 release_firmware(fw);
1964
1965 /* Patching failed. Disable the manufacturer mode with reset and
1966 * deactivate the downloaded firmware patches.
1967 */
28dc4b92
LP		 1968 err = btintel_exit_mfg(hdev, true, false);
1969 if (err)
1970 return err;
dffd30ee 1971
2064ee33 1972 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1973
213445b2
MH		 1974complete:
1975 /* Set the event mask for Intel specific vendor events. This enables
1976 * a few extra events that are useful during general operation.
1977 */
1978 btintel_set_event_mask_mfg(hdev, false);
1979
4185a0f5 1980 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1981 return 0;
1982}
1983
cda0dd78
MH		 1984static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1985{
1986 struct sk_buff *skb;
1987 struct hci_event_hdr *hdr;
1988 struct hci_ev_cmd_complete *evt;
1989
cf07e341 1990 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
cda0dd78
MH		 1991 if (!skb)
1992 return -ENOMEM;
1993
4df864c1 1994 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1995 hdr->evt = HCI_EV_CMD_COMPLETE;
1996 hdr->plen = sizeof(*evt) + 1;
1997
4df864c1 1998 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1999 evt->ncmd = 0x01;
2000 evt->opcode = cpu_to_le16(opcode);
2001
634fef61 2002 skb_put_u8(skb, 0x00);
cda0dd78 2003
618e8bc2 2004 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 2005
2006 return hci_recv_frame(hdev, skb);
2007}
2008
2009static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2010 int count)
2011{
2012 /* When the device is in bootloader mode, then it can send
2013 * events via the bulk endpoint. These events are treated the
2014 * same way as the ones received from the interrupt endpoint.
2015 */
2016 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2017 return btusb_recv_intr(data, buffer, count);
2018
2019 return btusb_recv_bulk(data, buffer, count);
2020}
2021
ccd6da2a
MH		 2022static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2023 unsigned int len)
2024{
2025 const struct intel_bootup *evt = ptr;
2026
2027 if (len != sizeof(*evt))
2028 return;
2029
dff6d593 2030 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
ccd6da2a 2031 wake_up_bit(&data->flags, BTUSB_BOOTING);
ccd6da2a
MH		 2032}
2033
2034static void btusb_intel_secure_send_result(struct btusb_data *data,
2035 const void *ptr, unsigned int len)
2036{
2037 const struct intel_secure_send_result *evt = ptr;
2038
2039 if (len != sizeof(*evt))
2040 return;
2041
2042 if (evt->result)
2043 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2044
2045 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
dff6d593 2046 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
ccd6da2a 2047 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
ccd6da2a
MH		 2048}
2049
cda0dd78
MH		 2050static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2051{
2052 struct btusb_data *data = hci_get_drvdata(hdev);
2053
2054 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2055 struct hci_event_hdr *hdr = (void *)skb->data;
2056
ccd6da2a
MH		 2057 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2058 hdr->plen > 0) {
2059 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2060 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2061
2062 switch (skb->data[2]) {
2063 case 0x02:
2064 /* When switching to the operational firmware
2065 * the device sends a vendor specific event
2066 * indicating that the bootup completed.
2067 */
2068 btusb_intel_bootup(data, ptr, len);
2069 break;
2070 case 0x06:
2071 /* When the firmware loading completes the
2072 * device sends out a vendor specific event
2073 * indicating the result of the firmware
2074 * loading.
2075 */
2076 btusb_intel_secure_send_result(data, ptr, len);
2077 break;
fad70972 2078 }
cda0dd78
MH		 2079 }
2080 }
2081
2082 return hci_recv_frame(hdev, skb);
2083}
2084
2085static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2086{
2087 struct btusb_data *data = hci_get_drvdata(hdev);
2088 struct urb *urb;
2089
2090 BT_DBG("%s", hdev->name);
2091
618e8bc2 2092 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 2093 case HCI_COMMAND_PKT:
2094 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2095 struct hci_command_hdr *cmd = (void *)skb->data;
2096 __u16 opcode = le16_to_cpu(cmd->opcode);
2097
2098 /* When in bootloader mode and the command 0xfc09
2099 * is received, it needs to be send down the
2100 * bulk endpoint. So allocate a bulk URB instead.
2101 */
2102 if (opcode == 0xfc09)
2103 urb = alloc_bulk_urb(hdev, skb);
2104 else
2105 urb = alloc_ctrl_urb(hdev, skb);
2106
2107 /* When the 0xfc01 command is issued to boot into
2108 * the operational firmware, it will actually not
2109 * send a command complete event. To keep the flow
2110 * control working inject that event here.
2111 */
2112 if (opcode == 0xfc01)
2113 inject_cmd_complete(hdev, opcode);
2114 } else {
2115 urb = alloc_ctrl_urb(hdev, skb);
2116 }
2117 if (IS_ERR(urb))
2118 return PTR_ERR(urb);
2119
2120 hdev->stat.cmd_tx++;
2121 return submit_or_queue_tx_urb(hdev, urb);
2122
2123 case HCI_ACLDATA_PKT:
2124 urb = alloc_bulk_urb(hdev, skb);
2125 if (IS_ERR(urb))
2126 return PTR_ERR(urb);
2127
2128 hdev->stat.acl_tx++;
2129 return submit_or_queue_tx_urb(hdev, urb);
2130
2131 case HCI_SCODATA_PKT:
2132 if (hci_conn_num(hdev, SCO_LINK) < 1)
2133 return -ENODEV;
2134
2135 urb = alloc_isoc_urb(hdev, skb);
2136 if (IS_ERR(urb))
2137 return PTR_ERR(urb);
2138
2139 hdev->stat.sco_tx++;
2140 return submit_tx_urb(hdev, urb);
2141 }
2142
2143 return -EILSEQ;
2144}
2145
2da711bc
RH		 2146static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2147 struct intel_boot_params *params,
2148 char *fw_name, size_t len,
2149 const char *suffix)
2150{
2151 switch (ver->hw_variant) {
2152 case 0x0b: /* SfP */
2153 case 0x0c: /* WsP */
2154 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2155 le16_to_cpu(ver->hw_variant),
2156 le16_to_cpu(params->dev_revid),
2157 suffix);
2158 break;
2159 case 0x11: /* JfP */
2160 case 0x12: /* ThP */
2161 case 0x13: /* HrP */
2162 case 0x14: /* CcP */
2163 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2164 le16_to_cpu(ver->hw_variant),
2165 le16_to_cpu(ver->hw_revision),
2166 le16_to_cpu(ver->fw_revision),
2167 suffix);
2168 break;
2169 default:
2170 return false;
2171 }
2172 return true;
2173}
2174
cda0dd78
MH		 2175static int btusb_setup_intel_new(struct hci_dev *hdev)
2176{
cda0dd78 2177 struct btusb_data *data = hci_get_drvdata(hdev);
6c483de1 2178 struct intel_version ver;
faf174d2 2179 struct intel_boot_params params;
cda0dd78 2180 const struct firmware *fw;
e5889af6 2181 u32 boot_param;
cda0dd78
MH		 2182 char fwname[64];
2183 ktime_t calltime, delta, rettime;
2184 unsigned long long duration;
2185 int err;
2186
2187 BT_DBG("%s", hdev->name);
2188
04d729b8
THJA		 2189 /* Set the default boot parameter to 0x0 and it is updated to
2190 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2191 * command while downloading the firmware.
2192 */
2193 boot_param = 0x00000000;
e5889af6 2194
cda0dd78
MH		 2195 calltime = ktime_get();
2196
2197 /* Read the Intel version information to determine if the device
2198 * is in bootloader mode or if it already has operational firmware
2199 * loaded.
2200 */
6c483de1 2201 err = btintel_read_version(hdev, &ver);
b9a2562f
AB		 2202 if (err) {
2203 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2204 btintel_reset_to_bootloader(hdev);
6c483de1 2205 return err;
b9a2562f 2206 }
cda0dd78
MH		 2207
2208 /* The hardware platform number has a fixed value of 0x37 and
2209 * for now only accept this single value.
2210 */
6c483de1 2211 if (ver.hw_platform != 0x37) {
85418fef
MH		 2212 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2213 ver.hw_platform);
cda0dd78
MH		 2214 return -EINVAL;
2215 }
2216
9268834b
THJA		 2217 /* Check for supported iBT hardware variants of this firmware
2218 * loading method.
a0af53b5
THJA		 2219 *
2220 * This check has been put in place to ensure correct forward
2221 * compatibility options when newer hardware variants come along.
cda0dd78 2222 */
9268834b
THJA		 2223 switch (ver.hw_variant) {
2224 case 0x0b: /* SfP */
2225 case 0x0c: /* WsP */
86a6129a 2226 case 0x11: /* JfP */
de766142 2227 case 0x12: /* ThP */
1ce0cec1 2228 case 0x13: /* HrP */
2da711bc 2229 case 0x14: /* CcP */
9268834b
THJA		 2230 break;
2231 default:
85418fef
MH		 2232 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2233 ver.hw_variant);
cda0dd78
MH		 2234 return -EINVAL;
2235 }
2236
6c483de1 2237 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2238
2239 /* The firmware variant determines if the device is in bootloader
2240 * mode or is running operational firmware. The value 0x06 identifies
2241 * the bootloader and the value 0x23 identifies the operational
2242 * firmware.
2243 *
2244 * When the operational firmware is already present, then only
2245 * the check for valid Bluetooth device address is needed. This
2246 * determines if the device will be added as configured or
2247 * unconfigured controller.
2248 *
2249 * It is not possible to use the Secure Boot Parameters in this
2250 * case since that command is only available in bootloader mode.
2251 */
6c483de1 2252 if (ver.fw_variant == 0x23) {
cda0dd78 2253 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2254 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2255 return 0;
2256 }
2257
2258 /* If the device is not in bootloader mode, then the only possible
2259 * choice is to return an error and abort the device initialization.
2260 */
6c483de1 2261 if (ver.fw_variant != 0x06) {
85418fef
MH		 2262 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2263 ver.fw_variant);
cda0dd78
MH		 2264 return -ENODEV;
2265 }
2266
cda0dd78
MH		 2267 /* Read the secure boot parameters to identify the operating
2268 * details of the bootloader.
2269 */
faf174d2
THJA		 2270 err = btintel_read_boot_params(hdev, &params);
2271 if (err)
2272 return err;
cda0dd78
MH		 2273
2274 /* It is required that every single firmware fragment is acknowledged
2275 * with a command complete event. If the boot parameters indicate
2276 * that this bootloader does not send them, then abort the setup.
2277 */
faf174d2 2278 if (params.limited_cce != 0x00) {
85418fef
MH		 2279 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2280 params.limited_cce);
cda0dd78
MH		 2281 return -EINVAL;
2282 }
2283
2284 /* If the OTP has no valid Bluetooth device address, then there will
2285 * also be no valid address for the operational firmware.
2286 */
faf174d2 2287 if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
2064ee33 2288 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2289 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2290 }
2291
2292 /* With this Intel bootloader only the hardware variant and device
af3715e5
J		 2293 * revision information are used to select the right firmware for SfP
2294 * and WsP.
cda0dd78 2295 *
230b04ac
THJA		 2296 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2297 *
2298 * Currently the supported hardware variants are:
2299 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2300 * 12 (0x0c) for iBT3.5 (WsP)
af3715e5
J		 2301 *
2302 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2303 * variant, HW revision and FW revision, as these are dependent on CNVi
2304 * and RF Combination.
2305 *
86a6129a
THJA		 2306 * 17 (0x11) for iBT3.5 (JfP)
2307 * 18 (0x12) for iBT3.5 (ThP)
af3715e5
J		 2308 *
2309 * The firmware file name for these will be
2310 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2311 *
cda0dd78 2312 */
2da711bc
RH		 2313 err = btusb_setup_intel_new_get_fw_name(&ver, &params, fwname,
2314 sizeof(fwname), "sfi");
2315 if (!err) {
85418fef 2316 bt_dev_err(hdev, "Unsupported Intel firmware naming");
af3715e5
J		 2317 return -EINVAL;
2318 }
cda0dd78
MH		 2319
2320 err = request_firmware(&fw, fwname, &hdev->dev);
2321 if (err < 0) {
85418fef 2322 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
cda0dd78
MH		 2323 return err;
2324 }
2325
2064ee33 2326 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2327
52cc9168
THJA		 2328 /* Save the DDC file name for later use to apply once the firmware
2329 * downloading is done.
2330 */
2da711bc
RH		 2331 err = btusb_setup_intel_new_get_fw_name(&ver, &params, fwname,
2332 sizeof(fwname), "ddc");
2333 if (!err) {
85418fef 2334 bt_dev_err(hdev, "Unsupported Intel firmware naming");
af3715e5
J		 2335 return -EINVAL;
2336 }
52cc9168 2337
cda0dd78 2338 if (fw->size < 644) {
85418fef
MH		 2339 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2340 fw->size);
cda0dd78
MH		 2341 err = -EBADF;
2342 goto done;
2343 }
2344
2345 set_bit(BTUSB_DOWNLOADING, &data->flags);
2346
fbbe83c5
THJA		 2347 /* Start firmware downloading and get boot parameter */
2348 err = btintel_download_firmware(hdev, fw, &boot_param);
b9a2562f
AB		 2349 if (err < 0) {
2350 /* When FW download fails, send Intel Reset to retry
2351 * FW download.
2352 */
2353 btintel_reset_to_bootloader(hdev);
cda0dd78 2354 goto done;
b9a2562f 2355 }
ce6bb929
MH		 2356 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2357
2064ee33 2358 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2359
cda0dd78
MH		 2360 /* Before switching the device into operational mode and with that
2361 * booting the loaded firmware, wait for the bootloader notification
2362 * that all fragments have been successfully received.
2363 *
a087a98e
JH		 2364 * When the event processing receives the notification, then the
2365 * BTUSB_DOWNLOADING flag will be cleared.
2366 *
2367 * The firmware loading should not take longer than 5 seconds
2368 * and thus just timeout if that happens and fail the setup
2369 * of this device.
cda0dd78 2370 */
129a7693
JH		 2371 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2372 TASK_INTERRUPTIBLE,
2373 msecs_to_jiffies(5000));
f0a70a04 2374 if (err == -EINTR) {
85418fef 2375 bt_dev_err(hdev, "Firmware loading interrupted");
a087a98e
JH		 2376 goto done;
2377 }
cda0dd78 2378
a087a98e 2379 if (err) {
85418fef 2380 bt_dev_err(hdev, "Firmware loading timeout");
a087a98e 2381 err = -ETIMEDOUT;
b9a2562f 2382 btintel_reset_to_bootloader(hdev);
a087a98e 2383 goto done;
cda0dd78
MH		 2384 }
2385
2386 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
85418fef 2387 bt_dev_err(hdev, "Firmware loading failed");
cda0dd78
MH		 2388 err = -ENOEXEC;
2389 goto done;
2390 }
2391
2392 rettime = ktime_get();
2393 delta = ktime_sub(rettime, calltime);
2394 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2395
2064ee33 2396 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2397
2398done:
2399 release_firmware(fw);
2400
2401 if (err < 0)
2402 return err;
2403
2404 calltime = ktime_get();
2405
2406 set_bit(BTUSB_BOOTING, &data->flags);
2407
e5889af6 2408 err = btintel_send_intel_reset(hdev, boot_param);
b9a2562f
AB		 2409 if (err) {
2410 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
2411 btintel_reset_to_bootloader(hdev);
e5889af6 2412 return err;
b9a2562f 2413 }
cda0dd78
MH		 2414
2415 /* The bootloader will not indicate when the device is ready. This
2416 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2417 *
2418 * Booting into operational firmware should not take longer than
2419 * 1 second. However if that happens, then just fail the setup
2420 * since something went wrong.
cda0dd78 2421 */
2064ee33 2422 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2423
129a7693
JH		 2424 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2425 TASK_INTERRUPTIBLE,
2426 msecs_to_jiffies(1000));
cda0dd78 2427
f0a70a04 2428 if (err == -EINTR) {
85418fef 2429 bt_dev_err(hdev, "Device boot interrupted");
fad70972
JH		 2430 return -EINTR;
2431 }
cda0dd78 2432
fad70972 2433 if (err) {
85418fef 2434 bt_dev_err(hdev, "Device boot timeout");
b9a2562f 2435 btintel_reset_to_bootloader(hdev);
fad70972 2436 return -ETIMEDOUT;
cda0dd78
MH		 2437 }
2438
2439 rettime = ktime_get();
2440 delta = ktime_sub(rettime, calltime);
2441 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2442
2064ee33 2443 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2444
2445 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2446
52cc9168
THJA		 2447 /* Once the device is running in operational mode, it needs to apply
2448 * the device configuration (DDC) parameters.
2449 *
2450 * The device can work without DDC parameters, so even if it fails
2451 * to load the file, no need to fail the setup.
2452 */
e924d3d6 2453 btintel_load_ddc_config(hdev, fwname);
52cc9168 2454
213445b2
MH		 2455 /* Set the event mask for Intel specific vendor events. This enables
2456 * a few extra events that are useful during general operation. It
2457 * does not enable any debugging related events.
2458 *
2459 * The device will function correctly without these events enabled
2460 * and thus no need to fail the setup.
2461 */
2462 btintel_set_event_mask(hdev, false);
2463
74ffdf22
AB		 2464 /* Read the Intel version information after loading the FW */
2465 err = btintel_read_version(hdev, &ver);
2466 if (err)
2467 return err;
2468
2469 btintel_version_info(hdev, &ver);
2470
cda0dd78
MH		 2471 return 0;
2472}
2473
bfbd45e9
THJA		 2474static int btusb_shutdown_intel(struct hci_dev *hdev)
2475{
2476 struct sk_buff *skb;
2477 long ret;
2478
1313bccf
AB		 2479 /* In the shutdown sequence where Bluetooth is turned off followed
2480 * by WiFi being turned off, turning WiFi back on causes issue with
2481 * the RF calibration.
2482 *
2483 * To ensure that any RF activity has been stopped, issue HCI Reset
2484 * command to clear all ongoing activity including advertising,
2485 * scanning etc.
2486 */
2487 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2488 if (IS_ERR(skb)) {
2489 ret = PTR_ERR(skb);
2490 bt_dev_err(hdev, "HCI reset during shutdown failed");
2491 return ret;
2492 }
2493 kfree_skb(skb);
2494
bfbd45e9
THJA		 2495 /* Some platforms have an issue with BT LED when the interface is
2496 * down or BT radio is turned off, which takes 5 seconds to BT LED
2497 * goes off. This command turns off the BT LED immediately.
2498 */
2499 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2500 if (IS_ERR(skb)) {
2501 ret = PTR_ERR(skb);
85418fef 2502 bt_dev_err(hdev, "turning off Intel device LED failed");
bfbd45e9
THJA		 2503 return ret;
2504 }
2505 kfree_skb(skb);
2506
2507 return 0;
2508}
2509
017a01cc
RH		 2510static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2511{
2512 struct sk_buff *skb;
2513
2514 /* Send HCI Reset to the controller to stop any BT activity which
2515 * were triggered. This will help to save power and maintain the
2516 * sync b/w Host and controller
2517 */
2518 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2519 if (IS_ERR(skb)) {
2520 bt_dev_err(hdev, "HCI reset during shutdown failed");
2521 return PTR_ERR(skb);
2522 }
2523 kfree_skb(skb);
2524
2525 return 0;
2526}
2527
9ce67c32 2528#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
a1c49c43
SW		 2529#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2530
2531#define HCI_WMT_MAX_EVENT_SIZE 64
2532
2533enum {
2534 BTMTK_WMT_PATCH_DWNLD = 0x1,
2535 BTMTK_WMT_FUNC_CTRL = 0x6,
2536 BTMTK_WMT_RST = 0x7,
2537 BTMTK_WMT_SEMAPHORE = 0x17,
2538};
2539
2540enum {
2541 BTMTK_WMT_INVALID,
2542 BTMTK_WMT_PATCH_UNDONE,
2543 BTMTK_WMT_PATCH_DONE,
2544 BTMTK_WMT_ON_UNDONE,
2545 BTMTK_WMT_ON_DONE,
2546 BTMTK_WMT_ON_PROGRESS,
2547};
2548
2549struct btmtk_wmt_hdr {
2550 u8 dir;
2551 u8 op;
2552 __le16 dlen;
2553 u8 flag;
2554} __packed;
2555
2556struct btmtk_hci_wmt_cmd {
2557 struct btmtk_wmt_hdr hdr;
2558 u8 data[256];
2559} __packed;
2560
2561struct btmtk_hci_wmt_evt {
2562 struct hci_event_hdr hhdr;
2563 struct btmtk_wmt_hdr whdr;
2564} __packed;
2565
2566struct btmtk_hci_wmt_evt_funcc {
2567 struct btmtk_hci_wmt_evt hwhdr;
2568 __be16 status;
2569} __packed;
2570
2571struct btmtk_tci_sleep {
2572 u8 mode;
2573 __le16 duration;
2574 __le16 host_duration;
2575 u8 host_wakeup_pin;
2576 u8 time_compensation;
2577} __packed;
2578
2579struct btmtk_hci_wmt_params {
2580 u8 op;
2581 u8 flag;
2582 u16 dlen;
2583 const void *data;
2584 u32 *status;
2585};
2586
2587static void btusb_mtk_wmt_recv(struct urb *urb)
2588{
2589 struct hci_dev *hdev = urb->context;
2590 struct btusb_data *data = hci_get_drvdata(hdev);
2591 struct hci_event_hdr *hdr;
2592 struct sk_buff *skb;
2593 int err;
2594
2595 if (urb->status == 0 && urb->actual_length > 0) {
2596 hdev->stat.byte_rx += urb->actual_length;
2597
2598 /* WMT event shouldn't be fragmented and the size should be
2599 * less than HCI_WMT_MAX_EVENT_SIZE.
2600 */
2601 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2602 if (!skb) {
2603 hdev->stat.err_rx++;
2604 goto err_out;
2605 }
2606
2607 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2608 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2609
2610 hdr = (void *)skb->data;
2611 /* Fix up the vendor event id with 0xff for vendor specific
2612 * instead of 0xe4 so that event send via monitoring socket can
2613 * be parsed properly.
2614 */
2615 hdr->evt = 0xff;
2616
2617 /* When someone waits for the WMT event, the skb is being cloned
2618 * and being processed the events from there then.
2619 */
2620 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
22cc6b7a 2621 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
a1c49c43
SW		 2622 if (!data->evt_skb)
2623 goto err_out;
2624 }
2625
2626 err = hci_recv_frame(hdev, skb);
2627 if (err < 0)
2628 goto err_free_skb;
2629
2630 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2631 &data->flags)) {
2632 /* Barrier to sync with other CPUs */
2633 smp_mb__after_atomic();
2634 wake_up_bit(&data->flags,
2635 BTUSB_TX_WAIT_VND_EVT);
2636 }
2637err_out:
2638 return;
2639err_free_skb:
2640 kfree_skb(data->evt_skb);
2641 data->evt_skb = NULL;
2642 return;
2643 } else if (urb->status == -ENOENT) {
2644 /* Avoid suspend failed when usb_kill_urb */
2645 return;
2646 }
2647
2648 usb_mark_last_busy(data->udev);
2649
2650 /* The URB complete handler is still called with urb->actual_length = 0
2651 * when the event is not available, so we should keep re-submitting
2652 * URB until WMT event returns, Also, It's necessary to wait some time
2653 * between the two consecutive control URBs to relax the target device
2654 * to generate the event. Otherwise, the WMT event cannot return from
2655 * the device successfully.
2656 */
2657 udelay(100);
2658
2659 usb_anchor_urb(urb, &data->ctrl_anchor);
2660 err = usb_submit_urb(urb, GFP_ATOMIC);
2661 if (err < 0) {
2662 /* -EPERM: urb is being killed;
2663 * -ENODEV: device got disconnected
2664 */
2665 if (err != -EPERM && err != -ENODEV)
2666 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2667 urb, -err);
2668 usb_unanchor_urb(urb);
2669 }
2670}
2671
2672static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2673{
2674 struct btusb_data *data = hci_get_drvdata(hdev);
2675 struct usb_ctrlrequest *dr;
2676 unsigned char *buf;
2677 int err, size = 64;
2678 unsigned int pipe;
2679 struct urb *urb;
2680
2681 urb = usb_alloc_urb(0, GFP_KERNEL);
2682 if (!urb)
2683 return -ENOMEM;
2684
2685 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2686 if (!dr) {
2687 usb_free_urb(urb);
2688 return -ENOMEM;
2689 }
2690
2691 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2692 dr->bRequest = 1;
2693 dr->wIndex = cpu_to_le16(0);
2694 dr->wValue = cpu_to_le16(48);
2695 dr->wLength = cpu_to_le16(size);
2696
2697 buf = kmalloc(size, GFP_KERNEL);
2698 if (!buf) {
2699 kfree(dr);
2700 return -ENOMEM;
2701 }
2702
2703 pipe = usb_rcvctrlpipe(data->udev, 0);
2704
2705 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2706 buf, size, btusb_mtk_wmt_recv, hdev);
2707
2708 urb->transfer_flags |= URB_FREE_BUFFER;
2709
2710 usb_anchor_urb(urb, &data->ctrl_anchor);
2711 err = usb_submit_urb(urb, GFP_KERNEL);
2712 if (err < 0) {
2713 if (err != -EPERM && err != -ENODEV)
2714 bt_dev_err(hdev, "urb %p submission failed (%d)",
2715 urb, -err);
2716 usb_unanchor_urb(urb);
2717 }
2718
2719 usb_free_urb(urb);
2720
2721 return err;
2722}
2723
2724static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2725 struct btmtk_hci_wmt_params *wmt_params)
2726{
2727 struct btusb_data *data = hci_get_drvdata(hdev);
2728 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2729 u32 hlen, status = BTMTK_WMT_INVALID;
2730 struct btmtk_hci_wmt_evt *wmt_evt;
2731 struct btmtk_hci_wmt_cmd wc;
2732 struct btmtk_wmt_hdr *hdr;
2733 int err;
2734
2735 /* Submit control IN URB on demand to process the WMT event */
2736 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2737 if (err < 0)
2738 return err;
2739
2740 /* Send the WMT command and wait until the WMT event returns */
2741 hlen = sizeof(*hdr) + wmt_params->dlen;
2742 if (hlen > 255)
2743 return -EINVAL;
2744
2745 hdr = (struct btmtk_wmt_hdr *)&wc;
2746 hdr->dir = 1;
2747 hdr->op = wmt_params->op;
2748 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2749 hdr->flag = wmt_params->flag;
2750 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2751
2752 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2753
2754 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2755
2756 if (err < 0) {
2757 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2758 return err;
2759 }
2760
2761 /* The vendor specific WMT commands are all answered by a vendor
2762 * specific event and will have the Command Status or Command
2763 * Complete as with usual HCI command flow control.
2764 *
2765 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2766 * state to be cleared. The driver specific event receive routine
2767 * will clear that state and with that indicate completion of the
2768 * WMT command.
2769 */
2770 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2771 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2772 if (err == -EINTR) {
2773 bt_dev_err(hdev, "Execution of wmt command interrupted");
2774 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2775 return err;
2776 }
2777
2778 if (err) {
2779 bt_dev_err(hdev, "Execution of wmt command timed out");
2780 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2781 return -ETIMEDOUT;
2782 }
2783
2784 /* Parse and handle the return WMT event */
2785 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2786 if (wmt_evt->whdr.op != hdr->op) {
2787 bt_dev_err(hdev, "Wrong op received %d expected %d",
2788 wmt_evt->whdr.op, hdr->op);
2789 err = -EIO;
2790 goto err_free_skb;
2791 }
2792
2793 switch (wmt_evt->whdr.op) {
2794 case BTMTK_WMT_SEMAPHORE:
2795 if (wmt_evt->whdr.flag == 2)
2796 status = BTMTK_WMT_PATCH_UNDONE;
2797 else
2798 status = BTMTK_WMT_PATCH_DONE;
2799 break;
2800 case BTMTK_WMT_FUNC_CTRL:
2801 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2802 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2803 status = BTMTK_WMT_ON_DONE;
2804 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2805 status = BTMTK_WMT_ON_PROGRESS;
2806 else
2807 status = BTMTK_WMT_ON_UNDONE;
2808 break;
2809 }
2810
2811 if (wmt_params->status)
2812 *wmt_params->status = status;
2813
2814err_free_skb:
2815 kfree_skb(data->evt_skb);
2816 data->evt_skb = NULL;
2817
2818 return err;
2819}
2820
2821static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2822{
2823 struct btmtk_hci_wmt_params wmt_params;
2824 const struct firmware *fw;
2825 const u8 *fw_ptr;
2826 size_t fw_size;
2827 int err, dlen;
2828 u8 flag;
2829
2830 err = request_firmware(&fw, fwname, &hdev->dev);
2831 if (err < 0) {
2832 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2833 return err;
2834 }
2835
2836 fw_ptr = fw->data;
2837 fw_size = fw->size;
2838
2839 /* The size of patch header is 30 bytes, should be skip */
5ee6310f
WY		 2840 if (fw_size < 30) {
2841 err = -EINVAL;
a1c49c43 2842 goto err_release_fw;
5ee6310f 2843 }
a1c49c43
SW		 2844
2845 fw_size -= 30;
2846 fw_ptr += 30;
2847 flag = 1;
2848
2849 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2850 wmt_params.status = NULL;
2851
2852 while (fw_size > 0) {
2853 dlen = min_t(int, 250, fw_size);
2854
2855 /* Tell deivice the position in sequence */
2856 if (fw_size - dlen <= 0)
2857 flag = 3;
2858 else if (fw_size < fw->size - 30)
2859 flag = 2;
2860
2861 wmt_params.flag = flag;
2862 wmt_params.dlen = dlen;
2863 wmt_params.data = fw_ptr;
2864
2865 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2866 if (err < 0) {
2867 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2868 err);
2869 goto err_release_fw;
2870 }
2871
2872 fw_size -= dlen;
2873 fw_ptr += dlen;
2874 }
2875
2876 wmt_params.op = BTMTK_WMT_RST;
2877 wmt_params.flag = 4;
2878 wmt_params.dlen = 0;
2879 wmt_params.data = NULL;
2880 wmt_params.status = NULL;
2881
2882 /* Activate funciton the firmware providing to */
2883 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2884 if (err < 0) {
2885 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
3168c19d 2886 goto err_release_fw;
a1c49c43
SW		 2887 }
2888
2889 /* Wait a few moments for firmware activation done */
2890 usleep_range(10000, 12000);
2891
2892err_release_fw:
2893 release_firmware(fw);
2894
2895 return err;
2896}
2897
2898static int btusb_mtk_func_query(struct hci_dev *hdev)
2899{
2900 struct btmtk_hci_wmt_params wmt_params;
2901 int status, err;
2902 u8 param = 0;
2903
2904 /* Query whether the function is enabled */
2905 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2906 wmt_params.flag = 4;
2907 wmt_params.dlen = sizeof(param);
2908 wmt_params.data = &param;
2909 wmt_params.status = &status;
2910
2911 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2912 if (err < 0) {
2913 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2914 return err;
2915 }
2916
2917 return status;
2918}
2919
2920static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2921{
2922 int pipe, err, size = sizeof(u32);
2923 void *buf;
2924
2925 buf = kzalloc(size, GFP_KERNEL);
2926 if (!buf)
2927 return -ENOMEM;
2928
2929 pipe = usb_rcvctrlpipe(data->udev, 0);
2930 err = usb_control_msg(data->udev, pipe, 0x63,
2931 USB_TYPE_VENDOR | USB_DIR_IN,
2932 reg >> 16, reg & 0xffff,
2933 buf, size, USB_CTRL_SET_TIMEOUT);
2934 if (err < 0)
2935 goto err_free_buf;
2936
2937 *val = get_unaligned_le32(buf);
2938
2939err_free_buf:
2940 kfree(buf);
2941
2942 return err;
2943}
2944
2945static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2946{
2947 return btusb_mtk_reg_read(data, 0x80000008, id);
2948}
2949
2950static int btusb_mtk_setup(struct hci_dev *hdev)
2951{
2952 struct btusb_data *data = hci_get_drvdata(hdev);
2953 struct btmtk_hci_wmt_params wmt_params;
2954 ktime_t calltime, delta, rettime;
2955 struct btmtk_tci_sleep tci_sleep;
2956 unsigned long long duration;
2957 struct sk_buff *skb;
2958 const char *fwname;
2959 int err, status;
2960 u32 dev_id;
2961 u8 param;
2962
2963 calltime = ktime_get();
2964
2965 err = btusb_mtk_id_get(data, &dev_id);
2966 if (err < 0) {
2967 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2968 return err;
2969 }
2970
2971 switch (dev_id) {
9ce67c32
SW		 2972 case 0x7663:
2973 fwname = FIRMWARE_MT7663;
2974 break;
a1c49c43
SW		 2975 case 0x7668:
2976 fwname = FIRMWARE_MT7668;
2977 break;
2978 default:
2979 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2980 dev_id);
2981 return -ENODEV;
2982 }
2983
2984 /* Query whether the firmware is already download */
2985 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2986 wmt_params.flag = 1;
2987 wmt_params.dlen = 0;
2988 wmt_params.data = NULL;
2989 wmt_params.status = &status;
2990
2991 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2992 if (err < 0) {
2993 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2994 return err;
2995 }
2996
2997 if (status == BTMTK_WMT_PATCH_DONE) {
2998 bt_dev_info(hdev, "firmware already downloaded");
2999 goto ignore_setup_fw;
3000 }
3001
3002 /* Setup a firmware which the device definitely requires */
3003 err = btusb_mtk_setup_firmware(hdev, fwname);
3004 if (err < 0)
3005 return err;
3006
3007ignore_setup_fw:
3008 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3009 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3010 2000, 5000000);
3011 /* -ETIMEDOUT happens */
3012 if (err < 0)
3013 return err;
3014
3015 /* The other errors happen in btusb_mtk_func_query */
3016 if (status < 0)
3017 return status;
3018
3019 if (status == BTMTK_WMT_ON_DONE) {
3020 bt_dev_info(hdev, "function already on");
3021 goto ignore_func_on;
3022 }
3023
3024 /* Enable Bluetooth protocol */
3025 param = 1;
3026 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3027 wmt_params.flag = 0;
3028 wmt_params.dlen = sizeof(param);
3029 wmt_params.data = &param;
3030 wmt_params.status = NULL;
3031
3032 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3033 if (err < 0) {
3034 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3035 return err;
3036 }
3037
3038ignore_func_on:
3039 /* Apply the low power environment setup */
3040 tci_sleep.mode = 0x5;
3041 tci_sleep.duration = cpu_to_le16(0x640);
3042 tci_sleep.host_duration = cpu_to_le16(0x640);
3043 tci_sleep.host_wakeup_pin = 0;
3044 tci_sleep.time_compensation = 0;
3045
3046 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3047 HCI_INIT_TIMEOUT);
3048 if (IS_ERR(skb)) {
3049 err = PTR_ERR(skb);
3050 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3051 return err;
3052 }
3053 kfree_skb(skb);
3054
3055 rettime = ktime_get();
3056 delta = ktime_sub(rettime, calltime);
3057 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3058
3059 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3060
3061 return 0;
3062}
3063
3064static int btusb_mtk_shutdown(struct hci_dev *hdev)
3065{
3066 struct btmtk_hci_wmt_params wmt_params;
3067 u8 param = 0;
3068 int err;
3069
3070 /* Disable the device */
3071 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3072 wmt_params.flag = 0;
3073 wmt_params.dlen = sizeof(param);
3074 wmt_params.data = &param;
3075 wmt_params.status = NULL;
3076
3077 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3078 if (err < 0) {
3079 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3080 return err;
3081 }
3082
3083 return 0;
3084}
3085
9ce67c32 3086MODULE_FIRMWARE(FIRMWARE_MT7663);
a1c49c43 3087MODULE_FIRMWARE(FIRMWARE_MT7668);
a1c49c43 3088
a4ccc9e3
RJ		 3089#ifdef CONFIG_PM
3090/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3091static int marvell_config_oob_wake(struct hci_dev *hdev)
3092{
3093 struct sk_buff *skb;
3094 struct btusb_data *data = hci_get_drvdata(hdev);
3095 struct device *dev = &data->udev->dev;
3096 u16 pin, gap, opcode;
3097 int ret;
3098 u8 cmd[5];
3099
3100 /* Move on if no wakeup pin specified */
3101 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3102 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3103 return 0;
3104
3105 /* Vendor specific command to configure a GPIO as wake-up pin */
3106 opcode = hci_opcode_pack(0x3F, 0x59);
3107 cmd[0] = opcode & 0xFF;
3108 cmd[1] = opcode >> 8;
3109 cmd[2] = 2; /* length of parameters that follow */
3110 cmd[3] = pin;
3111 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3112
3113 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3114 if (!skb) {
3115 bt_dev_err(hdev, "%s: No memory\n", __func__);
3116 return -ENOMEM;
3117 }
3118
59ae1d12 3119 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 3120 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3121
3122 ret = btusb_send_frame(hdev, skb);
3123 if (ret) {
3124 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3125 kfree_skb(skb);
3126 return ret;
3127 }
3128
3129 return 0;
3130}
3131#endif
3132
ae8df494
AK		 3133static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3134 const bdaddr_t *bdaddr)
3135{
3136 struct sk_buff *skb;
3137 u8 buf[8];
3138 long ret;
3139
3140 buf[0] = 0xfe;
3141 buf[1] = sizeof(bdaddr_t);
3142 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3143
3144 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3145 if (IS_ERR(skb)) {
3146 ret = PTR_ERR(skb);
2064ee33
MH		 3147 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3148 ret);
ae8df494
AK		 3149 return ret;
3150 }
3151 kfree_skb(skb);
3152
3153 return 0;
3154}
3155
5859223e
TK		 3156static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3157 const bdaddr_t *bdaddr)
3158{
3159 struct sk_buff *skb;
3160 u8 buf[10];
3161 long ret;
3162
3163 buf[0] = 0x01;
3164 buf[1] = 0x01;
3165 buf[2] = 0x00;
3166 buf[3] = sizeof(bdaddr_t);
3167 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3168
3169 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3170 if (IS_ERR(skb)) {
3171 ret = PTR_ERR(skb);
2064ee33 3172 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 3173 return ret;
3174 }
3175 kfree_skb(skb);
3176
3177 return 0;
3178}
3179
3267c884
KBYT		 3180#define QCA_DFU_PACKET_LEN 4096
3181
3182#define QCA_GET_TARGET_VERSION 0x09
3183#define QCA_CHECK_STATUS 0x05
3184#define QCA_DFU_DOWNLOAD 0x01
3185
3186#define QCA_SYSCFG_UPDATED 0x40
3187#define QCA_PATCH_UPDATED 0x80
3188#define QCA_DFU_TIMEOUT 3000
3189
3190struct qca_version {
3191 __le32 rom_version;
3192 __le32 patch_version;
3193 __le32 ram_version;
3194 __le32 ref_clock;
3195 __u8 reserved[4];
3196} __packed;
3197
3198struct qca_rampatch_version {
3199 __le16 rom_version;
3200 __le16 patch_version;
3201} __packed;
3202
3203struct qca_device_info {
bf906b3d
KBYT		 3204 u32 rom_version;
3205 u8 rampatch_hdr; /* length of header in rampatch */
3206 u8 nvm_hdr; /* length of header in NVM */
3207 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 3208};
3209
3210static const struct qca_device_info qca_devices_table[] = {
3211 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3212 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 3213 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 3214 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3215 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3216 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3217};
3218
803cdb8c 3219static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3267c884
KBYT		 3220 void *data, u16 size)
3221{
3267c884
KBYT		 3222 int pipe, err;
3223 u8 *buf;
3224
3225 buf = kmalloc(size, GFP_KERNEL);
3226 if (!buf)
3227 return -ENOMEM;
3228
3229 /* Found some of USB hosts have IOT issues with ours so that we should
3230 * not wait until HCI layer is ready.
3231 */
3232 pipe = usb_rcvctrlpipe(udev, 0);
3233 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3234 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3235 if (err < 0) {
803cdb8c 3236 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 3237 goto done;
3238 }
3239
3240 memcpy(data, buf, size);
3241
3242done:
3243 kfree(buf);
3244
3245 return err;
3246}
3247
3248static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3249 const struct firmware *firmware,
3250 size_t hdr_size)
3251{
3252 struct btusb_data *btdata = hci_get_drvdata(hdev);
3253 struct usb_device *udev = btdata->udev;
3254 size_t count, size, sent = 0;
3255 int pipe, len, err;
3256 u8 *buf;
3257
3258 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3259 if (!buf)
3260 return -ENOMEM;
3261
3262 count = firmware->size;
3263
3264 size = min_t(size_t, count, hdr_size);
3265 memcpy(buf, firmware->data, size);
3266
3267 /* USB patches should go down to controller through USB path
3268 * because binary format fits to go down through USB channel.
3269 * USB control path is for patching headers and USB bulk is for
3270 * patch body.
3271 */
3272 pipe = usb_sndctrlpipe(udev, 0);
3273 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3274 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3275 if (err < 0) {
2064ee33 3276 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 3277 goto done;
3278 }
3279
3280 sent += size;
3281 count -= size;
3282
3283 while (count) {
3284 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3285
3286 memcpy(buf, firmware->data + sent, size);
3287
3288 pipe = usb_sndbulkpipe(udev, 0x02);
3289 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3290 QCA_DFU_TIMEOUT);
3291 if (err < 0) {
2064ee33
MH		 3292 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3293 sent, firmware->size, err);
3267c884
KBYT		 3294 break;
3295 }
3296
3297 if (size != len) {
2064ee33 3298 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 3299 err = -EILSEQ;
3300 break;
3301 }
3302
3303 sent += size;
3304 count -= size;
3305 }
3306
3307done:
3308 kfree(buf);
3309 return err;
3310}
3311
3312static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3313 struct qca_version *ver,
3314 const struct qca_device_info *info)
3315{
3316 struct qca_rampatch_version *rver;
3317 const struct firmware *fw;
bf906b3d
KBYT		 3318 u32 ver_rom, ver_patch;
3319 u16 rver_rom, rver_patch;
3267c884
KBYT		 3320 char fwname[64];
3321 int err;
3322
bf906b3d
KBYT		 3323 ver_rom = le32_to_cpu(ver->rom_version);
3324 ver_patch = le32_to_cpu(ver->patch_version);
3325
3326 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 3327
3328 err = request_firmware(&fw, fwname, &hdev->dev);
3329 if (err) {
2064ee33
MH		 3330 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3331 fwname, err);
3267c884
KBYT		 3332 return err;
3333 }
3334
2064ee33 3335 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 3336
3267c884 3337 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 3338 rver_rom = le16_to_cpu(rver->rom_version);
3339 rver_patch = le16_to_cpu(rver->patch_version);
3340
2064ee33
MH		 3341 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3342 "firmware rome 0x%x build 0x%x",
3343 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 3344
bf906b3d 3345 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 3346 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 3347 err = -EINVAL;
3348 goto done;
3349 }
3350
3351 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3352
3353done:
3354 release_firmware(fw);
3355
3356 return err;
3357}
3358
3359static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3360 struct qca_version *ver,
3361 const struct qca_device_info *info)
3362{
3363 const struct firmware *fw;
3364 char fwname[64];
3365 int err;
3366
3367 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3368 le32_to_cpu(ver->rom_version));
3369
3370 err = request_firmware(&fw, fwname, &hdev->dev);
3371 if (err) {
2064ee33
MH		 3372 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3373 fwname, err);
3267c884
KBYT		 3374 return err;
3375 }
3376
2064ee33 3377 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 3378
3379 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3380
3381 release_firmware(fw);
3382
3383 return err;
3384}
3385
803cdb8c
TI		 3386/* identify the ROM version and check whether patches are needed */
3387static bool btusb_qca_need_patch(struct usb_device *udev)
3388{
3389 struct qca_version ver;
3390
3391 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3392 sizeof(ver)) < 0)
3393 return false;
3394 /* only low ROM versions need patches */
3395 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3396}
3397
3267c884
KBYT		 3398static int btusb_setup_qca(struct hci_dev *hdev)
3399{
803cdb8c
TI		 3400 struct btusb_data *btdata = hci_get_drvdata(hdev);
3401 struct usb_device *udev = btdata->udev;
3267c884
KBYT		 3402 const struct qca_device_info *info = NULL;
3403 struct qca_version ver;
bf906b3d 3404 u32 ver_rom;
3267c884
KBYT		 3405 u8 status;
3406 int i, err;
3407
803cdb8c 3408 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 3409 sizeof(ver));
3267c884
KBYT		 3410 if (err < 0)
3411 return err;
3412
bf906b3d 3413 ver_rom = le32_to_cpu(ver.rom_version);
803cdb8c
TI		 3414 /* Don't care about high ROM versions */
3415 if (ver_rom & ~0xffffU)
3416 return 0;
3417
3267c884 3418 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 3419 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 3420 info = &qca_devices_table[i];
3421 }
3422 if (!info) {
2064ee33 3423 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 3424 return -ENODEV;
3425 }
3426
803cdb8c 3427 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3267c884
KBYT		 3428 sizeof(status));
3429 if (err < 0)
3430 return err;
3431
3432 if (!(status & QCA_PATCH_UPDATED)) {
3433 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3434 if (err < 0)
3435 return err;
3436 }
3437
3438 if (!(status & QCA_SYSCFG_UPDATED)) {
3439 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3440 if (err < 0)
3441 return err;
3442 }
3443
3444 return 0;
3445}
3446
9d08f504
MH		 3447static inline int __set_diag_interface(struct hci_dev *hdev)
3448{
3449 struct btusb_data *data = hci_get_drvdata(hdev);
3450 struct usb_interface *intf = data->diag;
3451 int i;
3452
3453 if (!data->diag)
3454 return -ENODEV;
3455
3456 data->diag_tx_ep = NULL;
3457 data->diag_rx_ep = NULL;
3458
3459 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3460 struct usb_endpoint_descriptor *ep_desc;
3461
3462 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3463
3464 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3465 data->diag_tx_ep = ep_desc;
3466 continue;
3467 }
3468
3469 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3470 data->diag_rx_ep = ep_desc;
3471 continue;
3472 }
3473 }
3474
3475 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 3476 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 3477 return -ENODEV;
3478 }
3479
3480 return 0;
3481}
3482
3483static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3484{
3485 struct btusb_data *data = hci_get_drvdata(hdev);
3486 struct sk_buff *skb;
3487 struct urb *urb;
3488 unsigned int pipe;
3489
3490 if (!data->diag_tx_ep)
3491 return ERR_PTR(-ENODEV);
3492
3493 urb = usb_alloc_urb(0, GFP_KERNEL);
3494 if (!urb)
3495 return ERR_PTR(-ENOMEM);
3496
3497 skb = bt_skb_alloc(2, GFP_KERNEL);
3498 if (!skb) {
3499 usb_free_urb(urb);
3500 return ERR_PTR(-ENOMEM);
3501 }
3502
634fef61
JB		 3503 skb_put_u8(skb, 0xf0);
3504 skb_put_u8(skb, enable);
9d08f504
MH		 3505
3506 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3507
3508 usb_fill_bulk_urb(urb, data->udev, pipe,
3509 skb->data, skb->len, btusb_tx_complete, skb);
3510
3511 skb->dev = (void *)hdev;
3512
3513 return urb;
3514}
3515
3516static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3517{
3518 struct btusb_data *data = hci_get_drvdata(hdev);
3519 struct urb *urb;
3520
3521 if (!data->diag)
3522 return -ENODEV;
3523
3524 if (!test_bit(HCI_RUNNING, &hdev->flags))
3525 return -ENETDOWN;
3526
3527 urb = alloc_diag_urb(hdev, enable);
3528 if (IS_ERR(urb))
3529 return PTR_ERR(urb);
3530
3531 return submit_or_queue_tx_urb(hdev, urb);
3532}
9d08f504 3533
fd913ef7
RJ		 3534#ifdef CONFIG_PM
3535static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3536{
3537 struct btusb_data *data = priv;
3538
3539 pm_wakeup_event(&data->udev->dev, 0);
017789f3 3540 pm_system_wakeup();
fd913ef7
RJ		 3541
3542 /* Disable only if not already disabled (keep it balanced) */
3543 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3544 disable_irq_nosync(irq);
3545 disable_irq_wake(irq);
3546 }
3547 return IRQ_HANDLED;
3548}
3549
3550static const struct of_device_id btusb_match_table[] = {
3551 { .compatible = "usb1286,204e" },
4c409af0
BN		 3552 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3553 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
fd913ef7
RJ		 3554 { }
3555};
3556MODULE_DEVICE_TABLE(of, btusb_match_table);
3557
3558/* Use an oob wakeup pin? */
3559static int btusb_config_oob_wake(struct hci_dev *hdev)
3560{
3561 struct btusb_data *data = hci_get_drvdata(hdev);
3562 struct device *dev = &data->udev->dev;
3563 int irq, ret;
3564
3565 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3566
3567 if (!of_match_device(btusb_match_table, dev))
3568 return 0;
3569
3570 /* Move on if no IRQ specified */
3571 irq = of_irq_get_byname(dev->of_node, "wakeup");
3572 if (irq <= 0) {
3573 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3574 return 0;
3575 }
3576
771acc7e 3577 irq_set_status_flags(irq, IRQ_NOAUTOEN);
fd913ef7
RJ		 3578 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3579 0, "OOB Wake-on-BT", data);
3580 if (ret) {
3581 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3582 return ret;
3583 }
3584
3585 ret = device_init_wakeup(dev, true);
3586 if (ret) {
3587 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3588 return ret;
3589 }
3590
3591 data->oob_wake_irq = irq;
fd913ef7
RJ		 3592 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3593 return 0;
3594}
3595#endif
3596
fc549102
HG		 3597static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3598{
3599 if (dmi_check_system(btusb_needs_reset_resume_table))
3600 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3601}
3602
5e23b923 3603static int btusb_probe(struct usb_interface *intf,
89e7533d 3604 const struct usb_device_id *id)
5e23b923
MH		 3605{
3606 struct usb_endpoint_descriptor *ep_desc;
dc786b2c 3607 struct gpio_desc *reset_gpio;
5e23b923
MH		 3608 struct btusb_data *data;
3609 struct hci_dev *hdev;
22f8e9db 3610 unsigned ifnum_base;
5e23b923
MH		 3611 int i, err;
3612
3613 BT_DBG("intf %p id %p", intf, id);
3614
cfeb4145 3615 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 3616 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3617 if (!(id->driver_info & BTUSB_IFNUM_2))
3618 return -ENODEV;
3619 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3620 return -ENODEV;
3621 }
3622
3623 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 3624
3625 if (!id->driver_info) {
3626 const struct usb_device_id *match;
89e7533d 3627
5e23b923
MH		 3628 match = usb_match_id(intf, blacklist_table);
3629 if (match)
3630 id = match;
3631 }
3632
cfeb4145
MH		 3633 if (id->driver_info == BTUSB_IGNORE)
3634 return -ENODEV;
3635
2d25f8b4
SL		 3636 if (id->driver_info & BTUSB_ATH3012) {
3637 struct usb_device *udev = interface_to_usbdev(intf);
3638
3639 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 3640 * patch and sysconfig files
3641 */
803cdb8c
TI		 3642 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3643 !btusb_qca_need_patch(udev))
2d25f8b4
SL		 3644 return -ENODEV;
3645 }
3646
98921dbd 3647 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 3648 if (!data)
3649 return -ENOMEM;
3650
3651 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3652 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3653
3654 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3655 data->intr_ep = ep_desc;
3656 continue;
3657 }
3658
3659 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3660 data->bulk_tx_ep = ep_desc;
3661 continue;
3662 }
3663
3664 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3665 data->bulk_rx_ep = ep_desc;
3666 continue;
3667 }
3668 }
3669
98921dbd 3670 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 3671 return -ENODEV;
5e23b923 3672
893ba544
MH		 3673 if (id->driver_info & BTUSB_AMP) {
3674 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3675 data->cmdreq = 0x2b;
3676 } else {
3677 data->cmdreq_type = USB_TYPE_CLASS;
3678 data->cmdreq = 0x00;
3679 }
7a9d4020 3680
5e23b923 3681 data->udev = interface_to_usbdev(intf);
5fbcd260 3682 data->intf = intf;
5e23b923 3683
5e23b923 3684 INIT_WORK(&data->work, btusb_work);
7bee549e 3685 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 3686 init_usb_anchor(&data->deferred);
3687 init_usb_anchor(&data->tx_anchor);
7bee549e 3688 spin_lock_init(&data->txlock);
5e23b923 3689
5e23b923
MH		 3690 init_usb_anchor(&data->intr_anchor);
3691 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 3692 init_usb_anchor(&data->isoc_anchor);
9d08f504 3693 init_usb_anchor(&data->diag_anchor);
a1c49c43 3694 init_usb_anchor(&data->ctrl_anchor);
803b5836 3695 spin_lock_init(&data->rxlock);
5e23b923 3696
cda0dd78
MH		 3697 if (id->driver_info & BTUSB_INTEL_NEW) {
3698 data->recv_event = btusb_recv_event_intel;
3699 data->recv_bulk = btusb_recv_bulk_intel;
3700 set_bit(BTUSB_BOOTLOADER, &data->flags);
3701 } else {
3702 data->recv_event = hci_recv_frame;
3703 data->recv_bulk = btusb_recv_bulk;
3704 }
2cbd3f5c 3705
5e23b923 3706 hdev = hci_alloc_dev();
98921dbd 3707 if (!hdev)
5e23b923 3708 return -ENOMEM;
5e23b923 3709
c13854ce 3710 hdev->bus = HCI_USB;
155961e8 3711 hci_set_drvdata(hdev, data);
5e23b923 3712
893ba544
MH		 3713 if (id->driver_info & BTUSB_AMP)
3714 hdev->dev_type = HCI_AMP;
3715 else
ca8bee5d 3716 hdev->dev_type = HCI_PRIMARY;
893ba544 3717
5e23b923
MH		 3718 data->hdev = hdev;
3719
3720 SET_HCIDEV_DEV(hdev, &intf->dev);
3721
dc786b2c
RJ		 3722 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3723 GPIOD_OUT_LOW);
3724 if (IS_ERR(reset_gpio)) {
3725 err = PTR_ERR(reset_gpio);
3726 goto out_free_dev;
3727 } else if (reset_gpio) {
3728 data->reset_gpio = reset_gpio;
3729 }
3730
9f8f962c
MH		 3731 hdev->open = btusb_open;
3732 hdev->close = btusb_close;
3733 hdev->flush = btusb_flush;
3734 hdev->send = btusb_send_frame;
3735 hdev->notify = btusb_notify;
3736
fd913ef7
RJ		 3737#ifdef CONFIG_PM
3738 err = btusb_config_oob_wake(hdev);
3739 if (err)
3740 goto out_free_dev;
a4ccc9e3
RJ		 3741
3742 /* Marvell devices may need a specific chip configuration */
3743 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3744 err = marvell_config_oob_wake(hdev);
3745 if (err)
3746 goto out_free_dev;
3747 }
fd913ef7 3748#endif
418678b0
SJ		 3749 if (id->driver_info & BTUSB_CW6622)
3750 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3751
6c9d435d
MH		 3752 if (id->driver_info & BTUSB_BCM2045)
3753 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3754
9f8f962c
MH		 3755 if (id->driver_info & BTUSB_BCM92035)
3756 hdev->setup = btusb_setup_bcm92035;
5e23b923 3757
c0a21a52
MH		 3758 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3759 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
49a5f782 3760 hdev->manufacturer = 15;
c2bfb100 3761 hdev->setup = btbcm_setup_patchram;
9d08f504 3762 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3763 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3764
3765 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3766 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3767 }
10d4c673 3768
c0a21a52
MH		 3769 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3770 (id->driver_info & BTUSB_BCM_APPLE)) {
49a5f782 3771 hdev->manufacturer = 15;
c2bfb100 3772 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3773 hdev->set_diag = btusb_bcm_set_diag;
3774
3775 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3776 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3777 }
17b2772b 3778
cb8d6597 3779 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3780 hdev->manufacturer = 2;
dffd30ee 3781 hdev->setup = btusb_setup_intel;
bfbd45e9 3782 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3783 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3784 hdev->set_bdaddr = btintel_set_bdaddr;
dc786b2c 3785 hdev->cmd_timeout = btusb_intel_cmd_timeout;
c33fb9b4 3786 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3787 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3788 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3789 }
dffd30ee 3790
cda0dd78 3791 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3792 hdev->manufacturer = 2;
cda0dd78
MH		 3793 hdev->send = btusb_send_frame_intel;
3794 hdev->setup = btusb_setup_intel_new;
017a01cc 3795 hdev->shutdown = btusb_shutdown_intel_new;
eeb6abe9 3796 hdev->hw_error = btintel_hw_error;
6d2e50d2 3797 hdev->set_diag = btintel_set_diag;
4185a0f5 3798 hdev->set_bdaddr = btintel_set_bdaddr;
dc786b2c 3799 hdev->cmd_timeout = btusb_intel_cmd_timeout;
b970c5ba 3800 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
f7785021 3801 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
d8270fbb 3802 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3803 }
3804
ae8df494
AK		 3805 if (id->driver_info & BTUSB_MARVELL)
3806 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3807
c0a21a52
MH		 3808 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3809 (id->driver_info & BTUSB_MEDIATEK)) {
a1c49c43
SW		 3810 hdev->setup = btusb_mtk_setup;
3811 hdev->shutdown = btusb_mtk_shutdown;
3812 hdev->manufacturer = 70;
3813 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3814 }
a1c49c43 3815
661cf88a
MH		 3816 if (id->driver_info & BTUSB_SWAVE) {
3817 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3818 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3819 }
d57dbe77 3820
e4c534bb
MH		 3821 if (id->driver_info & BTUSB_INTEL_BOOT) {
3822 hdev->manufacturer = 2;
40df783d 3823 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3824 }
40df783d 3825
79f0c87d 3826 if (id->driver_info & BTUSB_ATH3012) {
803cdb8c 3827 data->setup_on_usb = btusb_setup_qca;
5859223e 3828 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3829 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3830 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3831 }
5859223e 3832
3267c884
KBYT		 3833 if (id->driver_info & BTUSB_QCA_ROME) {
3834 data->setup_on_usb = btusb_setup_qca;
3835 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
96e58d36 3836 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
fc549102 3837 btusb_check_needs_reset_resume(intf);
3267c884
KBYT		 3838 }
3839
42d22098
AB		 3840 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3841 (id->driver_info & BTUSB_REALTEK)) {
db33c77d 3842 hdev->setup = btrtl_setup_realtek;
7af3f558 3843 hdev->shutdown = btrtl_shutdown_realtek;
d7ef0d1e 3844 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
04b8c814 3845
9e45524a
AL		 3846 /* Realtek devices lose their updated firmware over global
3847 * suspend that means host doesn't send SET_FEATURE
3848 * (DEVICE_REMOTE_WAKEUP)
04b8c814 3849 */
9e45524a 3850 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
7ecacafc
KHF		 3851
3852 err = usb_autopm_get_interface(intf);
3853 if (err < 0)
3854 goto out_free_dev;
04b8c814 3855 }
a2698a9b 3856
893ba544
MH		 3857 if (id->driver_info & BTUSB_AMP) {
3858 /* AMP controllers do not support SCO packets */
3859 data->isoc = NULL;
3860 } else {
22f8e9db
MH		 3861 /* Interface orders are hardcoded in the specification */
3862 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
459232fc 3863 data->isoc_ifnum = ifnum_base + 1;
893ba544 3864 }
9bfa35fe 3865
7a9d4020 3866 if (!reset)
a6c511c6 3867 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3868
3869 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3870 if (!disable_scofix)
3871 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3872 }
3873
9bfa35fe
MH		 3874 if (id->driver_info & BTUSB_BROKEN_ISOC)
3875 data->isoc = NULL;
3876
4b127bd5 3877 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
00bce3fb 3878 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4b127bd5 3879
7a9d4020
MH		 3880 if (id->driver_info & BTUSB_DIGIANSWER) {
3881 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3882 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3883 }
3884
3885 if (id->driver_info & BTUSB_CSR) {
3886 struct usb_device *udev = data->udev;
81cac64b 3887 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3888
3889 /* Old firmware would otherwise execute USB reset */
81cac64b 3890 if (bcdDevice < 0x117)
a6c511c6 3891 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3892
3893 /* Fake CSR devices with broken commands */
6cafcd95 3894 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3895 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3896
3897 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3898 }
3899
cfeb4145 3900 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3901 struct usb_device *udev = data->udev;
cfeb4145 3902
7a9d4020 3903 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3904 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3905 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3906 }
3907
3a5ef20c
MH		 3908 if (id->driver_info & BTUSB_INTEL_BOOT) {
3909 /* A bug in the bootloader causes that interrupt interface is
3910 * only enabled after receiving SetInterface(0, AltSetting=0).
3911 */
3912 err = usb_set_interface(data->udev, 0, 0);
3913 if (err < 0) {
3914 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3915 goto out_free_dev;
3a5ef20c
MH		 3916 }
3917 }
3918
9bfa35fe
MH		 3919 if (data->isoc) {
3920 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3921 data->isoc, data);
10ab133b
RJ		 3922 if (err < 0)
3923 goto out_free_dev;
9bfa35fe
MH		 3924 }
3925
c0a21a52 3926 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
9d08f504
MH		 3927 if (!usb_driver_claim_interface(&btusb_driver,
3928 data->diag, data))
3929 __set_diag_interface(hdev);
3930 else
3931 data->diag = NULL;
3932 }
9d08f504 3933
eff2d68c
HG		 3934 if (enable_autosuspend)
3935 usb_enable_autosuspend(data->udev);
3936
5e23b923 3937 err = hci_register_dev(hdev);
10ab133b
RJ		 3938 if (err < 0)
3939 goto out_free_dev;
5e23b923
MH		 3940
3941 usb_set_intfdata(intf, data);
3942
3943 return 0;
10ab133b
RJ		 3944
3945out_free_dev:
dc786b2c
RJ		 3946 if (data->reset_gpio)
3947 gpiod_put(data->reset_gpio);
10ab133b
RJ		 3948 hci_free_dev(hdev);
3949 return err;
5e23b923
MH		 3950}
3951
3952static void btusb_disconnect(struct usb_interface *intf)
3953{
3954 struct btusb_data *data = usb_get_intfdata(intf);
3955 struct hci_dev *hdev;
3956
3957 BT_DBG("intf %p", intf);
3958
3959 if (!data)
3960 return;
3961
3962 hdev = data->hdev;
5fbcd260
MH		 3963 usb_set_intfdata(data->intf, NULL);
3964
3965 if (data->isoc)
3966 usb_set_intfdata(data->isoc, NULL);
5e23b923 3967
9d08f504
MH		 3968 if (data->diag)
3969 usb_set_intfdata(data->diag, NULL);
3970
5e23b923
MH		 3971 hci_unregister_dev(hdev);
3972
9d08f504
MH		 3973 if (intf == data->intf) {
3974 if (data->isoc)
3975 usb_driver_release_interface(&btusb_driver, data->isoc);
3976 if (data->diag)
3977 usb_driver_release_interface(&btusb_driver, data->diag);
3978 } else if (intf == data->isoc) {
3979 if (data->diag)
3980 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3981 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3982 } else if (intf == data->diag) {
3983 usb_driver_release_interface(&btusb_driver, data->intf);
3984 if (data->isoc)
3985 usb_driver_release_interface(&btusb_driver, data->isoc);
3986 }
5fbcd260 3987
fd913ef7
RJ		 3988 if (data->oob_wake_irq)
3989 device_init_wakeup(&data->udev->dev, false);
3990
dc786b2c
RJ		 3991 if (data->reset_gpio)
3992 gpiod_put(data->reset_gpio);
3993
5e23b923
MH		 3994 hci_free_dev(hdev);
3995}
3996
7bee549e 3997#ifdef CONFIG_PM
6a88adf2
MH		 3998static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3999{
4000 struct btusb_data *data = usb_get_intfdata(intf);
4001
4002 BT_DBG("intf %p", intf);
4003
4004 if (data->suspend_count++)
4005 return 0;
4006
7bee549e 4007 spin_lock_irq(&data->txlock);
5b1b0b81 4008 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 4009 set_bit(BTUSB_SUSPENDING, &data->flags);
4010 spin_unlock_irq(&data->txlock);
4011 } else {
4012 spin_unlock_irq(&data->txlock);
4013 data->suspend_count--;
4014 return -EBUSY;
4015 }
4016
6a88adf2
MH		 4017 cancel_work_sync(&data->work);
4018
7bee549e 4019 btusb_stop_traffic(data);
6a88adf2
MH		 4020 usb_kill_anchored_urbs(&data->tx_anchor);
4021
fd913ef7
RJ		 4022 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4023 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4024 enable_irq_wake(data->oob_wake_irq);
4025 enable_irq(data->oob_wake_irq);
4026 }
4027
9e45524a
AL		 4028 /* For global suspend, Realtek devices lose the loaded fw
4029 * in them. But for autosuspend, firmware should remain.
4030 * Actually, it depends on whether the usb host sends
4031 * set feature (enable wakeup) or not.
4032 */
4033 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4034 if (PMSG_IS_AUTO(message) &&
4035 device_can_wakeup(&data->udev->dev))
4036 data->udev->do_remote_wakeup = 1;
4037 else if (!PMSG_IS_AUTO(message))
4038 data->udev->reset_resume = 1;
4039 }
4040
6a88adf2
MH		 4041 return 0;
4042}
4043
7bee549e
ON		 4044static void play_deferred(struct btusb_data *data)
4045{
4046 struct urb *urb;
4047 int err;
4048
4049 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 4050 usb_anchor_urb(urb, &data->tx_anchor);
4051
7bee549e 4052 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 4053 if (err < 0) {
4054 if (err != -EPERM && err != -ENODEV)
4055 BT_ERR("%s urb %p submission failed (%d)",
4056 data->hdev->name, urb, -err);
4057 kfree(urb->setup_packet);
4058 usb_unanchor_urb(urb);
4059 usb_free_urb(urb);
7bee549e 4060 break;
19cfe912 4061 }
7bee549e
ON		 4062
4063 data->tx_in_flight++;
19cfe912
JC		 4064 usb_free_urb(urb);
4065 }
4066
4067 /* Cleanup the rest deferred urbs. */
4068 while ((urb = usb_get_from_anchor(&data->deferred))) {
4069 kfree(urb->setup_packet);
4070 usb_free_urb(urb);
7bee549e 4071 }
7bee549e
ON		 4072}
4073
6a88adf2
MH		 4074static int btusb_resume(struct usb_interface *intf)
4075{
4076 struct btusb_data *data = usb_get_intfdata(intf);
4077 struct hci_dev *hdev = data->hdev;
7bee549e 4078 int err = 0;
6a88adf2
MH		 4079
4080 BT_DBG("intf %p", intf);
4081
4082 if (--data->suspend_count)
4083 return 0;
4084
fd913ef7
RJ		 4085 /* Disable only if not already disabled (keep it balanced) */
4086 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4087 disable_irq(data->oob_wake_irq);
4088 disable_irq_wake(data->oob_wake_irq);
4089 }
4090
6a88adf2 4091 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 4092 goto done;
6a88adf2
MH		 4093
4094 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4095 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4096 if (err < 0) {
4097 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 4098 goto failed;
6a88adf2
MH		 4099 }
4100 }
4101
4102 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 4103 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4104 if (err < 0) {
6a88adf2 4105 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 4106 goto failed;
4107 }
4108
4109 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 4110 }
4111
4112 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4113 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4114 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4115 else
4116 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4117 }
4118
7bee549e
ON		 4119 spin_lock_irq(&data->txlock);
4120 play_deferred(data);
4121 clear_bit(BTUSB_SUSPENDING, &data->flags);
4122 spin_unlock_irq(&data->txlock);
4123 schedule_work(&data->work);
4124
6a88adf2 4125 return 0;
7bee549e
ON		 4126
4127failed:
4128 usb_scuttle_anchored_urbs(&data->deferred);
4129done:
4130 spin_lock_irq(&data->txlock);
4131 clear_bit(BTUSB_SUSPENDING, &data->flags);
4132 spin_unlock_irq(&data->txlock);
4133
4134 return err;
6a88adf2 4135}
7bee549e 4136#endif
6a88adf2 4137
5e23b923
MH		 4138static struct usb_driver btusb_driver = {
4139 .name = "btusb",
4140 .probe = btusb_probe,
4141 .disconnect = btusb_disconnect,
7bee549e 4142#ifdef CONFIG_PM
6a88adf2
MH		 4143 .suspend = btusb_suspend,
4144 .resume = btusb_resume,
7bee549e 4145#endif
5e23b923 4146 .id_table = btusb_table,
7bee549e 4147 .supports_autosuspend = 1,
e1f12eb6 4148 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 4149};
4150
93f1508c 4151module_usb_driver(btusb_driver);
5e23b923 4152
cfeb4145
MH		 4153module_param(disable_scofix, bool, 0644);
4154MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4155
4156module_param(force_scofix, bool, 0644);
4157MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4158
eff2d68c
HG		 4159module_param(enable_autosuspend, bool, 0644);
4160MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4161
cfeb4145
MH		 4162module_param(reset, bool, 0644);
4163MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4164
5e23b923
MH		 4165MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4166MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4167MODULE_VERSION(VERSION);
4168MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)