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Bluetooth: hci_ll: Use skb_put_u8 instead of struct hcill_cmd
[linux-block.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
1fdb9269 24#include <linux/dmi.h>
5e23b923 25#include <linux/module.h>
5e23b923 26#include <linux/usb.h>
61f5acea 27#include <linux/usb/quirks.h>
dffd30ee 28#include <linux/firmware.h>
fd913ef7
RJ		 29#include <linux/of_device.h>
30#include <linux/of_irq.h>
017789f3 31#include <linux/suspend.h>
a2698a9b 32#include <asm/unaligned.h>
5e23b923
MH		 33
34#include <net/bluetooth/bluetooth.h>
35#include <net/bluetooth/hci_core.h>
36
4185a0f5 37#include "btintel.h"
1df1f591 38#include "btbcm.h"
db33c77d 39#include "btrtl.h"
1df1f591 40
34dced9b 41#define VERSION "0.8"
cfeb4145 42
90ab5ee9
RR		 43static bool disable_scofix;
44static bool force_scofix;
eff2d68c 45static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
7a9d4020 46
917a3337 47static bool reset = true;
cfeb4145
MH		 48
49static struct usb_driver btusb_driver;
50
51#define BTUSB_IGNORE 0x01
7a9d4020
MH		 52#define BTUSB_DIGIANSWER 0x02
53#define BTUSB_CSR 0x04
54#define BTUSB_SNIFFER 0x08
55#define BTUSB_BCM92035 0x10
56#define BTUSB_BROKEN_ISOC 0x20
57#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 58#define BTUSB_ATH3012 0x80
dffd30ee 59#define BTUSB_INTEL 0x100
40df783d
MH		 60#define BTUSB_INTEL_BOOT 0x200
61#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 62#define BTUSB_MARVELL 0x800
4fcef8ed 63#define BTUSB_SWAVE 0x1000
cda0dd78 64#define BTUSB_INTEL_NEW 0x2000
893ba544 65#define BTUSB_AMP 0x4000
3267c884 66#define BTUSB_QCA_ROME 0x8000
17b2772b 67#define BTUSB_BCM_APPLE 0x10000
a2698a9b 68#define BTUSB_REALTEK 0x20000
6c9d435d 69#define BTUSB_BCM2045 0x40000
22f8e9db 70#define BTUSB_IFNUM_2 0x80000
418678b0 71#define BTUSB_CW6622 0x100000
5e23b923 72
54265202 73static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 74 /* Generic Bluetooth USB device */
75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
76
893ba544
MH		 77 /* Generic Bluetooth AMP device */
78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
79
d63b2826
DD		 80 /* Generic Bluetooth USB interface */
81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
82
1fa6535f 83 /* Apple-specific (Broadcom) devices */
17b2772b 84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 86
178c059e
CYC		 87 /* MediaTek MT76x0E */
88 { USB_DEVICE(0x0e8d, 0x763f) },
89
c510eae3 90 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 91 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 92
3cd01976
NI		 93 /* Apple MacBookPro 7,1 */
94 { USB_DEVICE(0x05ac, 0x8213) },
95
0a79f674
CL		 96 /* Apple iMac11,1 */
97 { USB_DEVICE(0x05ac, 0x8215) },
98
9c047157
NI		 99 /* Apple MacBookPro6,2 */
100 { USB_DEVICE(0x05ac, 0x8218) },
101
3e3ede7d
EH		 102 /* Apple MacBookAir3,1, MacBookAir3,2 */
103 { USB_DEVICE(0x05ac, 0x821b) },
104
a63b723d
PAVM		 105 /* Apple MacBookAir4,1 */
106 { USB_DEVICE(0x05ac, 0x821f) },
107
88d377b6
MAP		 108 /* Apple MacBookPro8,2 */
109 { USB_DEVICE(0x05ac, 0x821a) },
110
f78b6826
JK		 111 /* Apple MacMini5,1 */
112 { USB_DEVICE(0x05ac, 0x8281) },
113
cfeb4145 114 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 116
117 /* Bluetooth Ultraport Module from IBM */
118 { USB_DEVICE(0x04bf, 0x030a) },
119
120 /* ALPS Modules with non-standard id */
121 { USB_DEVICE(0x044e, 0x3001) },
122 { USB_DEVICE(0x044e, 0x3002) },
123
124 /* Ericsson with non-standard id */
125 { USB_DEVICE(0x0bdb, 0x1002) },
126
127 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 128 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 129
d13431ca
WJS		 130 /* Broadcom BCM20702A0 */
131 { USB_DEVICE(0x413c, 0x8197) },
132
d049f4e5
MH		 133 /* Broadcom BCM20702B0 (Dynex/Insignia) */
134 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
135
2faf71ce 136 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
628c26b4
DT		 137 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
2faf71ce 139
a57bac43
CH		 140 /* Broadcom BCM920703 (HTC Vive) */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
98514036 144 /* Foxconn - Hon Hai */
6029ddc2
HS		 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 147
8f0c304c
MD		 148 /* Lite-On Technology - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
0b880062 152 /* Broadcom devices with vendor specific id */
10d4c673
PG		 153 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 155
c2aef6e8 156 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 157 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 159
5bcecf32 160 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 161 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 163
9113bfd8 164 /* IMC Networks - Broadcom based */
6331c686
MH		 165 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 167
fdfddc60
WJS		 168 /* Dell Computer - Broadcom based */
169 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
170 .driver_info = BTUSB_BCM_PATCHRAM },
171
1623d0bf
DT		 172 /* Toshiba Corp - Broadcom based */
173 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
174 .driver_info = BTUSB_BCM_PATCHRAM },
175
40df783d 176 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 177 { USB_DEVICE(0x8087, 0x0a5a),
178 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 179
5e23b923
MH		 180 { } /* Terminating entry */
181};
182
183MODULE_DEVICE_TABLE(usb, btusb_table);
184
54265202 185static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 186 /* CSR BlueCore devices */
187 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
188
189 /* Broadcom BCM2033 without firmware */
190 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
191
6c9d435d
MH		 192 /* Broadcom BCM2045 devices */
193 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
194
be93112a 195 /* Atheros 3011 with sflash firmware */
0b880062
AS		 196 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
197 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 198 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 199 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 200 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 201 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 202 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 203
509e7861
CYC		 204 /* Atheros AR9285 Malbec with sflash firmware */
205 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
206
d9f51b51 207 /* Atheros 3012 with sflash firmware */
0b880062
AS		 208 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 213 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 214 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8 215 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 216 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 220 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 221 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 223 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 224 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 225 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 226 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d 227 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062 228 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 229 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 230 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 231 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 232 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 233 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
94a32d10 234 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 235 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 236 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 237 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 238 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 239 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 240 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 241 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 242 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 243 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 244 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 245 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 247 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 248 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 249 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 250 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 251 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 252 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 253 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 254 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5 255 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896 256 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51 257
e9036e33
CYC		 258 /* Atheros AR5BBU12 with sflash firmware */
259 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
260
85d59726 261 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 262 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 263 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 264
3267c884 265 /* QCA ROME chipset */
f44cb4b1 266 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_QCA_ROME },
2054111b 267 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
93519934 268 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
e5a49ee9 269 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
c9e44474 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
1eef1c35 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
c9e44474 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
47ca5898 273 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
858ff38a 274 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
06e41d8a 275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
1144a4ee 276 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
0a03f98b 277 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
d829b9e2 278 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
3267c884 279
cfeb4145 280 /* Broadcom BCM2035 */
7a9d4020 281 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 282 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
283 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 284
285 /* Broadcom BCM2045 */
7a9d4020
MH		 286 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
287 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 288
cfeb4145 289 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 290 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
291 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 292
293 /* HP laptop with Broadcom chip */
7a9d4020 294 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 295
296 /* Dell laptop with Broadcom chip */
7a9d4020 297 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 298
5ddd4a60 299 /* Dell Wireless 370 and 410 devices */
7a9d4020 300 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 301 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 302
7a9d4020
MH		 303 /* Belkin F8T012 and F8T013 devices */
304 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
305 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 306
5ddd4a60
MH		 307 /* Asus WL-BTD202 device */
308 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
309
310 /* Kensington Bluetooth USB adapter */
311 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
312
cfeb4145
MH		 313 /* RTX Telecom based adapters with buggy SCO support */
314 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
315 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
316
317 /* CONWISE Technology based adapters with buggy SCO support */
418678b0
SJ		 318 { USB_DEVICE(0x0e5e, 0x6622),
319 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
cfeb4145 320
4fcef8ed 321 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 322 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 323
cfeb4145
MH		 324 /* Digianswer devices */
325 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
326 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
327
328 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 329 { USB_DEVICE(0x0a12, 0x0002),
330 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 331
332 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 333 { USB_DEVICE(0x16d3, 0x0002),
334 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 335
cb1ee89f
MH		 336 /* Marvell Bluetooth devices */
337 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
338 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
1165df0e 339 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
cb1ee89f 340
d0ac9eb7 341 /* Intel Bluetooth devices */
de766142 342 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
1ce0cec1 343 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
407550fe 344 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 345 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 346 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 347 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
439e65d3 348 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
86a6129a 349 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 350
d0ac9eb7
MH		 351 /* Other Intel Bluetooth devices */
352 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
353 .driver_info = BTUSB_IGNORE },
ae8df494 354
a2698a9b
DD		 355 /* Realtek Bluetooth devices */
356 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
357 .driver_info = BTUSB_REALTEK },
358
359 /* Additional Realtek 8723AE Bluetooth devices */
360 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
361 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
362
363 /* Additional Realtek 8723BE Bluetooth devices */
364 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
368 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
a81d72d2 369 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
a2698a9b
DD		 370
371 /* Additional Realtek 8821AE Bluetooth devices */
372 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
373 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
374 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
375 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
376 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
377
fed03fe7
LF		 378 /* Additional Realtek 8822BE Bluetooth devices */
379 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
380
4481c076
PP		 381 /* Silicon Wave based devices */
382 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
383
5e23b923
MH		 384 { } /* Terminating entry */
385};
386
1fdb9269
HG		 387/* The Bluetooth USB module build into some devices needs to be reset on resume,
388 * this is a problem with the platform (likely shutting off all power) not with
389 * the module itself. So we use a DMI list to match known broken platforms.
390 */
391static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
392 {
0c6e5266 393 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
1fdb9269 394 .matches = {
0c6e5266
KHF		 395 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
396 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
1fdb9269
HG		 397 },
398 },
399 {}
400};
401
9bfa35fe
MH		 402#define BTUSB_MAX_ISOC_FRAMES 10
403
5e23b923
MH		 404#define BTUSB_INTR_RUNNING 0
405#define BTUSB_BULK_RUNNING 1
9bfa35fe 406#define BTUSB_ISOC_RUNNING 2
7bee549e 407#define BTUSB_SUSPENDING 3
08b8b6c4 408#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 409#define BTUSB_BOOTLOADER 5
410#define BTUSB_DOWNLOADING 6
ce6bb929 411#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 412#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 413#define BTUSB_BOOTING 9
61f5acea
HG		 414#define BTUSB_DIAG_RUNNING 10
415#define BTUSB_OOB_WAKE_ENABLED 11
5e23b923
MH		 416
417struct btusb_data {
418 struct hci_dev *hdev;
419 struct usb_device *udev;
5fbcd260 420 struct usb_interface *intf;
9bfa35fe 421 struct usb_interface *isoc;
9d08f504 422 struct usb_interface *diag;
459232fc 423 unsigned isoc_ifnum;
5e23b923 424
5e23b923
MH		 425 unsigned long flags;
426
427 struct work_struct work;
7bee549e 428 struct work_struct waker;
5e23b923 429
803b5836 430 struct usb_anchor deferred;
5e23b923 431 struct usb_anchor tx_anchor;
803b5836
MH		 432 int tx_in_flight;
433 spinlock_t txlock;
434
5e23b923
MH		 435 struct usb_anchor intr_anchor;
436 struct usb_anchor bulk_anchor;
9bfa35fe 437 struct usb_anchor isoc_anchor;
9d08f504 438 struct usb_anchor diag_anchor;
803b5836
MH		 439 spinlock_t rxlock;
440
441 struct sk_buff *evt_skb;
442 struct sk_buff *acl_skb;
443 struct sk_buff *sco_skb;
5e23b923
MH		 444
445 struct usb_endpoint_descriptor *intr_ep;
446 struct usb_endpoint_descriptor *bulk_tx_ep;
447 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 448 struct usb_endpoint_descriptor *isoc_tx_ep;
449 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 450 struct usb_endpoint_descriptor *diag_tx_ep;
451 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 452
7a9d4020 453 __u8 cmdreq_type;
893ba544 454 __u8 cmdreq;
7a9d4020 455
43c2e57f 456 unsigned int sco_num;
9bfa35fe 457 int isoc_altsetting;
6a88adf2 458 int suspend_count;
2cbd3f5c 459
97307f51 460 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 461 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 462
463 int (*setup_on_usb)(struct hci_dev *hdev);
fd913ef7
RJ		 464
465 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
5e23b923
MH		 466};
467
803b5836
MH		 468static inline void btusb_free_frags(struct btusb_data *data)
469{
470 unsigned long flags;
471
472 spin_lock_irqsave(&data->rxlock, flags);
473
474 kfree_skb(data->evt_skb);
475 data->evt_skb = NULL;
476
477 kfree_skb(data->acl_skb);
478 data->acl_skb = NULL;
479
480 kfree_skb(data->sco_skb);
481 data->sco_skb = NULL;
482
483 spin_unlock_irqrestore(&data->rxlock, flags);
484}
485
1ffa4ad0
MH		 486static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
487{
803b5836
MH		 488 struct sk_buff *skb;
489 int err = 0;
490
491 spin_lock(&data->rxlock);
492 skb = data->evt_skb;
493
494 while (count) {
495 int len;
496
497 if (!skb) {
498 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
499 if (!skb) {
500 err = -ENOMEM;
501 break;
502 }
503
618e8bc2
MH		 504 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
505 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 506 }
507
618e8bc2 508 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 509 skb_put_data(skb, buffer, len);
803b5836
MH		 510
511 count -= len;
512 buffer += len;
618e8bc2 513 hci_skb_expect(skb) -= len;
803b5836
MH		 514
515 if (skb->len == HCI_EVENT_HDR_SIZE) {
516 /* Complete event header */
618e8bc2 517 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 518
618e8bc2 519 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 520 kfree_skb(skb);
521 skb = NULL;
522
523 err = -EILSEQ;
524 break;
525 }
526 }
527
618e8bc2 528 if (!hci_skb_expect(skb)) {
803b5836 529 /* Complete frame */
97307f51 530 data->recv_event(data->hdev, skb);
803b5836
MH		 531 skb = NULL;
532 }
533 }
534
535 data->evt_skb = skb;
536 spin_unlock(&data->rxlock);
537
538 return err;
1ffa4ad0
MH		 539}
540
541static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
542{
803b5836
MH		 543 struct sk_buff *skb;
544 int err = 0;
545
546 spin_lock(&data->rxlock);
547 skb = data->acl_skb;
548
549 while (count) {
550 int len;
551
552 if (!skb) {
553 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
554 if (!skb) {
555 err = -ENOMEM;
556 break;
557 }
558
618e8bc2
MH		 559 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
560 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 561 }
562
618e8bc2 563 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 564 skb_put_data(skb, buffer, len);
803b5836
MH		 565
566 count -= len;
567 buffer += len;
618e8bc2 568 hci_skb_expect(skb) -= len;
803b5836
MH		 569
570 if (skb->len == HCI_ACL_HDR_SIZE) {
571 __le16 dlen = hci_acl_hdr(skb)->dlen;
572
573 /* Complete ACL header */
618e8bc2 574 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 575
618e8bc2 576 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 577 kfree_skb(skb);
578 skb = NULL;
579
580 err = -EILSEQ;
581 break;
582 }
583 }
584
618e8bc2 585 if (!hci_skb_expect(skb)) {
803b5836
MH		 586 /* Complete frame */
587 hci_recv_frame(data->hdev, skb);
588 skb = NULL;
589 }
590 }
591
592 data->acl_skb = skb;
593 spin_unlock(&data->rxlock);
594
595 return err;
1ffa4ad0
MH		 596}
597
598static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
599{
803b5836
MH		 600 struct sk_buff *skb;
601 int err = 0;
602
603 spin_lock(&data->rxlock);
604 skb = data->sco_skb;
605
606 while (count) {
607 int len;
608
609 if (!skb) {
610 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
611 if (!skb) {
612 err = -ENOMEM;
613 break;
614 }
615
618e8bc2
MH		 616 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
617 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 618 }
619
618e8bc2 620 len = min_t(uint, hci_skb_expect(skb), count);
59ae1d12 621 skb_put_data(skb, buffer, len);
803b5836
MH		 622
623 count -= len;
624 buffer += len;
618e8bc2 625 hci_skb_expect(skb) -= len;
803b5836
MH		 626
627 if (skb->len == HCI_SCO_HDR_SIZE) {
628 /* Complete SCO header */
618e8bc2 629 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 630
618e8bc2 631 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 632 kfree_skb(skb);
633 skb = NULL;
634
635 err = -EILSEQ;
636 break;
637 }
638 }
639
618e8bc2 640 if (!hci_skb_expect(skb)) {
803b5836
MH		 641 /* Complete frame */
642 hci_recv_frame(data->hdev, skb);
643 skb = NULL;
644 }
645 }
646
647 data->sco_skb = skb;
648 spin_unlock(&data->rxlock);
649
650 return err;
1ffa4ad0
MH		 651}
652
5e23b923
MH		 653static void btusb_intr_complete(struct urb *urb)
654{
655 struct hci_dev *hdev = urb->context;
155961e8 656 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 657 int err;
658
89e7533d
MH		 659 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
660 urb->actual_length);
5e23b923
MH		 661
662 if (!test_bit(HCI_RUNNING, &hdev->flags))
663 return;
664
665 if (urb->status == 0) {
9bfa35fe
MH		 666 hdev->stat.byte_rx += urb->actual_length;
667
1ffa4ad0
MH		 668 if (btusb_recv_intr(data, urb->transfer_buffer,
669 urb->actual_length) < 0) {
2064ee33 670 bt_dev_err(hdev, "corrupted event packet");
5e23b923
MH		 671 hdev->stat.err_rx++;
672 }
85560c4a
CC		 673 } else if (urb->status == -ENOENT) {
674 /* Avoid suspend failed when usb_kill_urb */
675 return;
5e23b923
MH		 676 }
677
678 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
679 return;
680
7bee549e 681 usb_mark_last_busy(data->udev);
5e23b923
MH		 682 usb_anchor_urb(urb, &data->intr_anchor);
683
684 err = usb_submit_urb(urb, GFP_ATOMIC);
685 if (err < 0) {
4935f1c1 686 /* -EPERM: urb is being killed;
d98422cb
DR		 687 * -ENODEV: device got disconnected
688 */
4935f1c1 689 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 690 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
691 urb, -err);
5e23b923
MH		 692 usb_unanchor_urb(urb);
693 }
694}
695
2eda66f4 696static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 697{
155961e8 698 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 699 struct urb *urb;
700 unsigned char *buf;
701 unsigned int pipe;
702 int err, size;
703
704 BT_DBG("%s", hdev->name);
705
9bfa35fe
MH		 706 if (!data->intr_ep)
707 return -ENODEV;
708
2eda66f4 709 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 710 if (!urb)
711 return -ENOMEM;
712
713 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
714
2eda66f4 715 buf = kmalloc(size, mem_flags);
5e23b923
MH		 716 if (!buf) {
717 usb_free_urb(urb);
718 return -ENOMEM;
719 }
720
721 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
722
723 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 724 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 725
726 urb->transfer_flags |= URB_FREE_BUFFER;
727
728 usb_anchor_urb(urb, &data->intr_anchor);
729
2eda66f4 730 err = usb_submit_urb(urb, mem_flags);
5e23b923 731 if (err < 0) {
d4b8d1c9 732 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 733 bt_dev_err(hdev, "urb %p submission failed (%d)",
734 urb, -err);
5e23b923 735 usb_unanchor_urb(urb);
5e23b923
MH		 736 }
737
738 usb_free_urb(urb);
739
740 return err;
741}
742
743static void btusb_bulk_complete(struct urb *urb)
744{
745 struct hci_dev *hdev = urb->context;
155961e8 746 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 747 int err;
748
89e7533d
MH		 749 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
750 urb->actual_length);
5e23b923
MH		 751
752 if (!test_bit(HCI_RUNNING, &hdev->flags))
753 return;
754
755 if (urb->status == 0) {
9bfa35fe
MH		 756 hdev->stat.byte_rx += urb->actual_length;
757
2cbd3f5c 758 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 759 urb->actual_length) < 0) {
2064ee33 760 bt_dev_err(hdev, "corrupted ACL packet");
5e23b923
MH		 761 hdev->stat.err_rx++;
762 }
85560c4a
CC		 763 } else if (urb->status == -ENOENT) {
764 /* Avoid suspend failed when usb_kill_urb */
765 return;
5e23b923
MH		 766 }
767
768 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
769 return;
770
771 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 772 usb_mark_last_busy(data->udev);
5e23b923
MH		 773
774 err = usb_submit_urb(urb, GFP_ATOMIC);
775 if (err < 0) {
4935f1c1 776 /* -EPERM: urb is being killed;
d98422cb
DR		 777 * -ENODEV: device got disconnected
778 */
4935f1c1 779 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 780 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
781 urb, -err);
5e23b923
MH		 782 usb_unanchor_urb(urb);
783 }
784}
785
2eda66f4 786static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 787{
155961e8 788 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 789 struct urb *urb;
790 unsigned char *buf;
791 unsigned int pipe;
290ba200 792 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 793
794 BT_DBG("%s", hdev->name);
795
9bfa35fe
MH		 796 if (!data->bulk_rx_ep)
797 return -ENODEV;
798
2eda66f4 799 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 800 if (!urb)
801 return -ENOMEM;
802
2eda66f4 803 buf = kmalloc(size, mem_flags);
5e23b923
MH		 804 if (!buf) {
805 usb_free_urb(urb);
806 return -ENOMEM;
807 }
808
809 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
810
89e7533d
MH		 811 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
812 btusb_bulk_complete, hdev);
5e23b923
MH		 813
814 urb->transfer_flags |= URB_FREE_BUFFER;
815
7bee549e 816 usb_mark_last_busy(data->udev);
5e23b923
MH		 817 usb_anchor_urb(urb, &data->bulk_anchor);
818
2eda66f4 819 err = usb_submit_urb(urb, mem_flags);
5e23b923 820 if (err < 0) {
d4b8d1c9 821 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 822 bt_dev_err(hdev, "urb %p submission failed (%d)",
823 urb, -err);
5e23b923 824 usb_unanchor_urb(urb);
5e23b923
MH		 825 }
826
827 usb_free_urb(urb);
828
829 return err;
830}
831
9bfa35fe
MH		 832static void btusb_isoc_complete(struct urb *urb)
833{
834 struct hci_dev *hdev = urb->context;
155961e8 835 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 836 int i, err;
837
89e7533d
MH		 838 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
839 urb->actual_length);
9bfa35fe
MH		 840
841 if (!test_bit(HCI_RUNNING, &hdev->flags))
842 return;
843
844 if (urb->status == 0) {
845 for (i = 0; i < urb->number_of_packets; i++) {
846 unsigned int offset = urb->iso_frame_desc[i].offset;
847 unsigned int length = urb->iso_frame_desc[i].actual_length;
848
849 if (urb->iso_frame_desc[i].status)
850 continue;
851
852 hdev->stat.byte_rx += length;
853
1ffa4ad0
MH		 854 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
855 length) < 0) {
2064ee33 856 bt_dev_err(hdev, "corrupted SCO packet");
9bfa35fe
MH		 857 hdev->stat.err_rx++;
858 }
859 }
85560c4a
CC		 860 } else if (urb->status == -ENOENT) {
861 /* Avoid suspend failed when usb_kill_urb */
862 return;
9bfa35fe
MH		 863 }
864
865 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
866 return;
867
868 usb_anchor_urb(urb, &data->isoc_anchor);
869
870 err = usb_submit_urb(urb, GFP_ATOMIC);
871 if (err < 0) {
4935f1c1 872 /* -EPERM: urb is being killed;
d98422cb
DR		 873 * -ENODEV: device got disconnected
874 */
4935f1c1 875 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 876 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
877 urb, -err);
9bfa35fe
MH		 878 usb_unanchor_urb(urb);
879 }
880}
881
42b16b3f 882static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 883{
884 int i, offset = 0;
885
886 BT_DBG("len %d mtu %d", len, mtu);
887
888 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
889 i++, offset += mtu, len -= mtu) {
890 urb->iso_frame_desc[i].offset = offset;
891 urb->iso_frame_desc[i].length = mtu;
892 }
893
894 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
895 urb->iso_frame_desc[i].offset = offset;
896 urb->iso_frame_desc[i].length = len;
897 i++;
898 }
899
900 urb->number_of_packets = i;
901}
902
2eda66f4 903static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 904{
155961e8 905 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 906 struct urb *urb;
907 unsigned char *buf;
908 unsigned int pipe;
909 int err, size;
910
911 BT_DBG("%s", hdev->name);
912
913 if (!data->isoc_rx_ep)
914 return -ENODEV;
915
2eda66f4 916 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 917 if (!urb)
918 return -ENOMEM;
919
920 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
921 BTUSB_MAX_ISOC_FRAMES;
922
2eda66f4 923 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 924 if (!buf) {
925 usb_free_urb(urb);
926 return -ENOMEM;
927 }
928
929 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
930
fa0fb93f 931 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 932 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 933
89e7533d 934 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 935
936 __fill_isoc_descriptor(urb, size,
89e7533d 937 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 938
939 usb_anchor_urb(urb, &data->isoc_anchor);
940
2eda66f4 941 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 942 if (err < 0) {
d4b8d1c9 943 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 944 bt_dev_err(hdev, "urb %p submission failed (%d)",
945 urb, -err);
9bfa35fe 946 usb_unanchor_urb(urb);
9bfa35fe
MH		 947 }
948
949 usb_free_urb(urb);
950
951 return err;
952}
953
9d08f504
MH		 954static void btusb_diag_complete(struct urb *urb)
955{
956 struct hci_dev *hdev = urb->context;
957 struct btusb_data *data = hci_get_drvdata(hdev);
958 int err;
959
960 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
961 urb->actual_length);
962
963 if (urb->status == 0) {
964 struct sk_buff *skb;
965
966 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
967 if (skb) {
59ae1d12
JB		 968 skb_put_data(skb, urb->transfer_buffer,
969 urb->actual_length);
9d08f504
MH		 970 hci_recv_diag(hdev, skb);
971 }
972 } else if (urb->status == -ENOENT) {
973 /* Avoid suspend failed when usb_kill_urb */
974 return;
975 }
976
977 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
978 return;
979
980 usb_anchor_urb(urb, &data->diag_anchor);
981 usb_mark_last_busy(data->udev);
982
983 err = usb_submit_urb(urb, GFP_ATOMIC);
984 if (err < 0) {
985 /* -EPERM: urb is being killed;
d98422cb
DR		 986 * -ENODEV: device got disconnected
987 */
9d08f504 988 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 989 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
990 urb, -err);
9d08f504
MH		 991 usb_unanchor_urb(urb);
992 }
993}
994
995static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
996{
997 struct btusb_data *data = hci_get_drvdata(hdev);
998 struct urb *urb;
999 unsigned char *buf;
1000 unsigned int pipe;
1001 int err, size = HCI_MAX_FRAME_SIZE;
1002
1003 BT_DBG("%s", hdev->name);
1004
1005 if (!data->diag_rx_ep)
1006 return -ENODEV;
1007
1008 urb = usb_alloc_urb(0, mem_flags);
1009 if (!urb)
1010 return -ENOMEM;
1011
1012 buf = kmalloc(size, mem_flags);
1013 if (!buf) {
1014 usb_free_urb(urb);
1015 return -ENOMEM;
1016 }
1017
1018 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1019
1020 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1021 btusb_diag_complete, hdev);
1022
1023 urb->transfer_flags |= URB_FREE_BUFFER;
1024
1025 usb_mark_last_busy(data->udev);
1026 usb_anchor_urb(urb, &data->diag_anchor);
1027
1028 err = usb_submit_urb(urb, mem_flags);
1029 if (err < 0) {
1030 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1031 bt_dev_err(hdev, "urb %p submission failed (%d)",
1032 urb, -err);
9d08f504
MH		 1033 usb_unanchor_urb(urb);
1034 }
1035
1036 usb_free_urb(urb);
1037
1038 return err;
1039}
1040
5e23b923 1041static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 1042{
1043 struct sk_buff *skb = urb->context;
89e7533d 1044 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 1045 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1046
89e7533d
MH		 1047 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1048 urb->actual_length);
7bee549e
ON		 1049
1050 if (!test_bit(HCI_RUNNING, &hdev->flags))
1051 goto done;
1052
1053 if (!urb->status)
1054 hdev->stat.byte_tx += urb->transfer_buffer_length;
1055 else
1056 hdev->stat.err_tx++;
1057
1058done:
1059 spin_lock(&data->txlock);
1060 data->tx_in_flight--;
1061 spin_unlock(&data->txlock);
1062
1063 kfree(urb->setup_packet);
1064
1065 kfree_skb(skb);
1066}
1067
1068static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1069{
1070 struct sk_buff *skb = urb->context;
89e7533d 1071 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1072
89e7533d
MH		 1073 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1074 urb->actual_length);
5e23b923
MH		 1075
1076 if (!test_bit(HCI_RUNNING, &hdev->flags))
1077 goto done;
1078
1079 if (!urb->status)
1080 hdev->stat.byte_tx += urb->transfer_buffer_length;
1081 else
1082 hdev->stat.err_tx++;
1083
1084done:
1085 kfree(urb->setup_packet);
1086
1087 kfree_skb(skb);
1088}
1089
1090static int btusb_open(struct hci_dev *hdev)
1091{
155961e8 1092 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1093 int err;
1094
1095 BT_DBG("%s", hdev->name);
1096
c7e163fe
EH		 1097 err = usb_autopm_get_interface(data->intf);
1098 if (err < 0)
1099 return err;
1100
ace31982
KBYT		 1101 /* Patching USB firmware files prior to starting any URBs of HCI path
1102 * It is more safe to use USB bulk channel for downloading USB patch
1103 */
1104 if (data->setup_on_usb) {
1105 err = data->setup_on_usb(hdev);
eb50042f 1106 if (err < 0)
ace31982
KBYT		 1107 return err;
1108 }
1109
7bee549e 1110 data->intf->needs_remote_wakeup = 1;
a0085f25
SG		 1111 /* device specific wakeup source enabled and required for USB
1112 * remote wakeup while host is suspended
1113 */
1114 device_wakeup_enable(&data->udev->dev);
7bee549e 1115
5e23b923 1116 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1117 goto done;
5e23b923 1118
2eda66f4 1119 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1120 if (err < 0)
1121 goto failed;
1122
1123 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1124 if (err < 0) {
43c2e57f
MH		 1125 usb_kill_anchored_urbs(&data->intr_anchor);
1126 goto failed;
5e23b923
MH		 1127 }
1128
43c2e57f
MH		 1129 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1130 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1131
9d08f504
MH		 1132 if (data->diag) {
1133 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1134 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1135 }
1136
7bee549e
ON		 1137done:
1138 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1139 return 0;
1140
1141failed:
1142 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1143 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1144 return err;
1145}
1146
7bee549e
ON		 1147static void btusb_stop_traffic(struct btusb_data *data)
1148{
1149 usb_kill_anchored_urbs(&data->intr_anchor);
1150 usb_kill_anchored_urbs(&data->bulk_anchor);
1151 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1152 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1153}
1154
5e23b923
MH		 1155static int btusb_close(struct hci_dev *hdev)
1156{
155961e8 1157 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1158 int err;
5e23b923
MH		 1159
1160 BT_DBG("%s", hdev->name);
1161
e8c3c3d2 1162 cancel_work_sync(&data->work);
404291ac 1163 cancel_work_sync(&data->waker);
e8c3c3d2 1164
9bfa35fe 1165 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1166 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1167 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1168 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1169
1170 btusb_stop_traffic(data);
803b5836
MH		 1171 btusb_free_frags(data);
1172
7bee549e
ON		 1173 err = usb_autopm_get_interface(data->intf);
1174 if (err < 0)
7b8e2c1d 1175 goto failed;
7bee549e
ON		 1176
1177 data->intf->needs_remote_wakeup = 0;
a0085f25 1178 device_wakeup_disable(&data->udev->dev);
7bee549e 1179 usb_autopm_put_interface(data->intf);
5e23b923 1180
7b8e2c1d
ON		 1181failed:
1182 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1183 return 0;
1184}
1185
1186static int btusb_flush(struct hci_dev *hdev)
1187{
155961e8 1188 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1189
1190 BT_DBG("%s", hdev->name);
1191
1192 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1193 btusb_free_frags(data);
5e23b923
MH		 1194
1195 return 0;
1196}
1197
047b2ec8 1198static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1199{
155961e8 1200 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1201 struct usb_ctrlrequest *dr;
1202 struct urb *urb;
1203 unsigned int pipe;
5e23b923 1204
047b2ec8
MH		 1205 urb = usb_alloc_urb(0, GFP_KERNEL);
1206 if (!urb)
1207 return ERR_PTR(-ENOMEM);
5e23b923 1208
047b2ec8
MH		 1209 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1210 if (!dr) {
1211 usb_free_urb(urb);
1212 return ERR_PTR(-ENOMEM);
1213 }
5e23b923 1214
047b2ec8 1215 dr->bRequestType = data->cmdreq_type;
893ba544 1216 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1217 dr->wIndex = 0;
1218 dr->wValue = 0;
1219 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1220
047b2ec8 1221 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1222
89e7533d 1223 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1224 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1225
89e7533d 1226 skb->dev = (void *)hdev;
5e23b923 1227
047b2ec8
MH		 1228 return urb;
1229}
5e23b923 1230
047b2ec8
MH		 1231static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1232{
1233 struct btusb_data *data = hci_get_drvdata(hdev);
1234 struct urb *urb;
1235 unsigned int pipe;
5e23b923 1236
047b2ec8
MH		 1237 if (!data->bulk_tx_ep)
1238 return ERR_PTR(-ENODEV);
9bfa35fe 1239
047b2ec8
MH		 1240 urb = usb_alloc_urb(0, GFP_KERNEL);
1241 if (!urb)
1242 return ERR_PTR(-ENOMEM);
5e23b923 1243
047b2ec8 1244 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1245
047b2ec8
MH		 1246 usb_fill_bulk_urb(urb, data->udev, pipe,
1247 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1248
89e7533d 1249 skb->dev = (void *)hdev;
5e23b923 1250
047b2ec8
MH		 1251 return urb;
1252}
9bfa35fe 1253
047b2ec8
MH		 1254static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1255{
1256 struct btusb_data *data = hci_get_drvdata(hdev);
1257 struct urb *urb;
1258 unsigned int pipe;
9bfa35fe 1259
047b2ec8
MH		 1260 if (!data->isoc_tx_ep)
1261 return ERR_PTR(-ENODEV);
9bfa35fe 1262
047b2ec8
MH		 1263 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1264 if (!urb)
1265 return ERR_PTR(-ENOMEM);
9bfa35fe 1266
047b2ec8 1267 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1268
047b2ec8
MH		 1269 usb_fill_int_urb(urb, data->udev, pipe,
1270 skb->data, skb->len, btusb_isoc_tx_complete,
1271 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1272
047b2ec8 1273 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1274
047b2ec8
MH		 1275 __fill_isoc_descriptor(urb, skb->len,
1276 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1277
89e7533d 1278 skb->dev = (void *)hdev;
047b2ec8
MH		 1279
1280 return urb;
1281}
1282
1283static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1284{
1285 struct btusb_data *data = hci_get_drvdata(hdev);
1286 int err;
7bee549e 1287
5e23b923
MH		 1288 usb_anchor_urb(urb, &data->tx_anchor);
1289
e9753eff 1290 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1291 if (err < 0) {
5a9b80e2 1292 if (err != -EPERM && err != -ENODEV)
2064ee33
MH		 1293 bt_dev_err(hdev, "urb %p submission failed (%d)",
1294 urb, -err);
5e23b923
MH		 1295 kfree(urb->setup_packet);
1296 usb_unanchor_urb(urb);
7bee549e
ON		 1297 } else {
1298 usb_mark_last_busy(data->udev);
5e23b923
MH		 1299 }
1300
54a8a79c 1301 usb_free_urb(urb);
5e23b923
MH		 1302 return err;
1303}
1304
047b2ec8
MH		 1305static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1306{
1307 struct btusb_data *data = hci_get_drvdata(hdev);
1308 unsigned long flags;
1309 bool suspending;
1310
1311 spin_lock_irqsave(&data->txlock, flags);
1312 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1313 if (!suspending)
1314 data->tx_in_flight++;
1315 spin_unlock_irqrestore(&data->txlock, flags);
1316
1317 if (!suspending)
1318 return submit_tx_urb(hdev, urb);
1319
1320 usb_anchor_urb(urb, &data->deferred);
1321 schedule_work(&data->waker);
1322
1323 usb_free_urb(urb);
1324 return 0;
1325}
1326
1327static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1328{
1329 struct urb *urb;
1330
1331 BT_DBG("%s", hdev->name);
1332
618e8bc2 1333 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1334 case HCI_COMMAND_PKT:
1335 urb = alloc_ctrl_urb(hdev, skb);
1336 if (IS_ERR(urb))
1337 return PTR_ERR(urb);
1338
1339 hdev->stat.cmd_tx++;
1340 return submit_or_queue_tx_urb(hdev, urb);
1341
1342 case HCI_ACLDATA_PKT:
1343 urb = alloc_bulk_urb(hdev, skb);
1344 if (IS_ERR(urb))
1345 return PTR_ERR(urb);
1346
1347 hdev->stat.acl_tx++;
1348 return submit_or_queue_tx_urb(hdev, urb);
1349
1350 case HCI_SCODATA_PKT:
1351 if (hci_conn_num(hdev, SCO_LINK) < 1)
1352 return -ENODEV;
1353
1354 urb = alloc_isoc_urb(hdev, skb);
1355 if (IS_ERR(urb))
1356 return PTR_ERR(urb);
1357
1358 hdev->stat.sco_tx++;
1359 return submit_tx_urb(hdev, urb);
1360 }
1361
1362 return -EILSEQ;
1363}
1364
5e23b923
MH		 1365static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1366{
155961e8 1367 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1368
1369 BT_DBG("%s evt %d", hdev->name, evt);
1370
014f7bc7
MH		 1371 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1372 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1373 schedule_work(&data->work);
a780efa8 1374 }
5e23b923
MH		 1375}
1376
42b16b3f 1377static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1378{
155961e8 1379 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1380 struct usb_interface *intf = data->isoc;
1381 struct usb_endpoint_descriptor *ep_desc;
1382 int i, err;
1383
1384 if (!data->isoc)
1385 return -ENODEV;
1386
459232fc 1387 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
9bfa35fe 1388 if (err < 0) {
2064ee33 1389 bt_dev_err(hdev, "setting interface failed (%d)", -err);
9bfa35fe
MH		 1390 return err;
1391 }
1392
1393 data->isoc_altsetting = altsetting;
1394
1395 data->isoc_tx_ep = NULL;
1396 data->isoc_rx_ep = NULL;
1397
1398 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1399 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1400
1401 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1402 data->isoc_tx_ep = ep_desc;
1403 continue;
1404 }
1405
1406 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1407 data->isoc_rx_ep = ep_desc;
1408 continue;
1409 }
1410 }
1411
1412 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2064ee33 1413 bt_dev_err(hdev, "invalid SCO descriptors");
9bfa35fe
MH		 1414 return -ENODEV;
1415 }
1416
1417 return 0;
1418}
1419
5e23b923
MH		 1420static void btusb_work(struct work_struct *work)
1421{
1422 struct btusb_data *data = container_of(work, struct btusb_data, work);
1423 struct hci_dev *hdev = data->hdev;
f4001d28 1424 int new_alts;
7bee549e 1425 int err;
5e23b923 1426
014f7bc7 1427 if (data->sco_num > 0) {
08b8b6c4 1428 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1429 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1430 if (err < 0) {
1431 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1432 usb_kill_anchored_urbs(&data->isoc_anchor);
1433 return;
1434 }
1435
08b8b6c4 1436 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1437 }
f4001d28
MA		 1438
1439 if (hdev->voice_setting & 0x0020) {
1440 static const int alts[3] = { 2, 4, 5 };
89e7533d 1441
014f7bc7 1442 new_alts = alts[data->sco_num - 1];
f4001d28 1443 } else {
014f7bc7 1444 new_alts = data->sco_num;
f4001d28
MA		 1445 }
1446
1447 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1448 unsigned long flags;
1449
9bfa35fe
MH		 1450 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1451 usb_kill_anchored_urbs(&data->isoc_anchor);
1452
8f9d02f4
KP		 1453 /* When isochronous alternate setting needs to be
1454 * changed, because SCO connection has been added
1455 * or removed, a packet fragment may be left in the
1456 * reassembling state. This could lead to wrongly
1457 * assembled fragments.
1458 *
1459 * Clear outstanding fragment when selecting a new
1460 * alternate setting.
1461 */
f6fc86f2 1462 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1463 kfree_skb(data->sco_skb);
1464 data->sco_skb = NULL;
f6fc86f2 1465 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1466
f4001d28 1467 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1468 return;
1469 }
1470
1471 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1472 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1473 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1474 else
2eda66f4 1475 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1476 }
1477 } else {
1478 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1479 usb_kill_anchored_urbs(&data->isoc_anchor);
1480
1481 __set_isoc_interface(hdev, 0);
08b8b6c4 1482 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1483 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1484 }
1485}
1486
7bee549e
ON		 1487static void btusb_waker(struct work_struct *work)
1488{
1489 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1490 int err;
1491
1492 err = usb_autopm_get_interface(data->intf);
1493 if (err < 0)
1494 return;
1495
1496 usb_autopm_put_interface(data->intf);
1497}
1498
9f8f962c
MH		 1499static int btusb_setup_bcm92035(struct hci_dev *hdev)
1500{
1501 struct sk_buff *skb;
1502 u8 val = 0x00;
1503
1504 BT_DBG("%s", hdev->name);
1505
1506 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1507 if (IS_ERR(skb))
2064ee33 1508 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
9f8f962c
MH		 1509 else
1510 kfree_skb(skb);
1511
1512 return 0;
1513}
1514
81cac64b
MH		 1515static int btusb_setup_csr(struct hci_dev *hdev)
1516{
1517 struct hci_rp_read_local_version *rp;
1518 struct sk_buff *skb;
81cac64b
MH		 1519
1520 BT_DBG("%s", hdev->name);
1521
7cd84d72
MH		 1522 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1523 HCI_INIT_TIMEOUT);
1524 if (IS_ERR(skb)) {
1525 int err = PTR_ERR(skb);
2064ee33 1526 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
7cd84d72
MH		 1527 return err;
1528 }
1529
1530 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33 1531 bt_dev_err(hdev, "CSR: Local version length mismatch");
7cd84d72
MH		 1532 kfree_skb(skb);
1533 return -EIO;
1534 }
81cac64b 1535
89e7533d 1536 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1537
6cafcd95
JH		 1538 /* Detect controllers which aren't real CSR ones. */
1539 if (le16_to_cpu(rp->manufacturer) != 10 ||
1540 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1541 /* Clear the reset quirk since this is not an actual
1542 * early Bluetooth 1.1 device from CSR.
1543 */
1544 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1545
9641d343
MH		 1546 /* These fake CSR controllers have all a broken
1547 * stored link key handling and so just disable it.
1548 */
1549 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1550 }
81cac64b
MH		 1551
1552 kfree_skb(skb);
1553
9641d343 1554 return 0;
81cac64b
MH		 1555}
1556
dffd30ee 1557static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1558 struct intel_version *ver)
dffd30ee
THJA		 1559{
1560 const struct firmware *fw;
1561 char fwname[64];
1562 int ret;
1563
1564 snprintf(fwname, sizeof(fwname),
1565 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1566 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1567 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1568 ver->fw_build_ww, ver->fw_build_yy);
1569
1570 ret = request_firmware(&fw, fwname, &hdev->dev);
1571 if (ret < 0) {
1572 if (ret == -EINVAL) {
1573 BT_ERR("%s Intel firmware file request failed (%d)",
1574 hdev->name, ret);
1575 return NULL;
1576 }
1577
1578 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1579 hdev->name, fwname, ret);
1580
1581 /* If the correct firmware patch file is not found, use the
1582 * default firmware patch file instead
1583 */
1584 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1585 ver->hw_platform, ver->hw_variant);
1586 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1587 BT_ERR("%s failed to open default Intel fw file: %s",
1588 hdev->name, fwname);
1589 return NULL;
1590 }
1591 }
1592
2064ee33 1593 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
dffd30ee
THJA		 1594
1595 return fw;
1596}
1597
1598static int btusb_setup_intel_patching(struct hci_dev *hdev,
1599 const struct firmware *fw,
1600 const u8 **fw_ptr, int *disable_patch)
1601{
1602 struct sk_buff *skb;
1603 struct hci_command_hdr *cmd;
1604 const u8 *cmd_param;
1605 struct hci_event_hdr *evt = NULL;
1606 const u8 *evt_param = NULL;
1607 int remain = fw->size - (*fw_ptr - fw->data);
1608
1609 /* The first byte indicates the types of the patch command or event.
1610 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1611 * in the current firmware buffer doesn't start with 0x01 or
1612 * the size of remain buffer is smaller than HCI command header,
1613 * the firmware file is corrupted and it should stop the patching
1614 * process.
1615 */
1616 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1617 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1618 return -EINVAL;
1619 }
1620 (*fw_ptr)++;
1621 remain--;
1622
1623 cmd = (struct hci_command_hdr *)(*fw_ptr);
1624 *fw_ptr += sizeof(*cmd);
1625 remain -= sizeof(*cmd);
1626
1627 /* Ensure that the remain firmware data is long enough than the length
1628 * of command parameter. If not, the firmware file is corrupted.
1629 */
1630 if (remain < cmd->plen) {
1631 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1632 return -EFAULT;
1633 }
1634
1635 /* If there is a command that loads a patch in the firmware
1636 * file, then enable the patch upon success, otherwise just
1637 * disable the manufacturer mode, for example patch activation
1638 * is not required when the default firmware patch file is used
1639 * because there are no patch data to load.
1640 */
1641 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1642 *disable_patch = 0;
1643
1644 cmd_param = *fw_ptr;
1645 *fw_ptr += cmd->plen;
1646 remain -= cmd->plen;
1647
1648 /* This reads the expected events when the above command is sent to the
1649 * device. Some vendor commands expects more than one events, for
1650 * example command status event followed by vendor specific event.
1651 * For this case, it only keeps the last expected event. so the command
1652 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1653 * last expected event.
1654 */
1655 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1656 (*fw_ptr)++;
1657 remain--;
1658
1659 evt = (struct hci_event_hdr *)(*fw_ptr);
1660 *fw_ptr += sizeof(*evt);
1661 remain -= sizeof(*evt);
1662
1663 if (remain < evt->plen) {
1664 BT_ERR("%s Intel fw corrupted: invalid evt len",
1665 hdev->name);
1666 return -EFAULT;
1667 }
1668
1669 evt_param = *fw_ptr;
1670 *fw_ptr += evt->plen;
1671 remain -= evt->plen;
1672 }
1673
1674 /* Every HCI commands in the firmware file has its correspond event.
1675 * If event is not found or remain is smaller than zero, the firmware
1676 * file is corrupted.
1677 */
1678 if (!evt || !evt_param || remain < 0) {
1679 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1680 return -EFAULT;
1681 }
1682
1683 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1684 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1685 if (IS_ERR(skb)) {
1686 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1687 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1688 return PTR_ERR(skb);
dffd30ee
THJA		 1689 }
1690
1691 /* It ensures that the returned event matches the event data read from
1692 * the firmware file. At fist, it checks the length and then
1693 * the contents of the event.
1694 */
1695 if (skb->len != evt->plen) {
1696 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1697 le16_to_cpu(cmd->opcode));
1698 kfree_skb(skb);
1699 return -EFAULT;
1700 }
1701
1702 if (memcmp(skb->data, evt_param, evt->plen)) {
1703 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1704 hdev->name, le16_to_cpu(cmd->opcode));
1705 kfree_skb(skb);
1706 return -EFAULT;
1707 }
1708 kfree_skb(skb);
1709
1710 return 0;
1711}
1712
1713static int btusb_setup_intel(struct hci_dev *hdev)
1714{
1715 struct sk_buff *skb;
1716 const struct firmware *fw;
1717 const u8 *fw_ptr;
28dc4b92 1718 int disable_patch, err;
6c483de1 1719 struct intel_version ver;
dffd30ee 1720
dffd30ee
THJA		 1721 BT_DBG("%s", hdev->name);
1722
1723 /* The controller has a bug with the first HCI command sent to it
1724 * returning number of completed commands as zero. This would stall the
1725 * command processing in the Bluetooth core.
1726 *
1727 * As a workaround, send HCI Reset command first which will reset the
1728 * number of completed commands and allow normal command processing
1729 * from now on.
1730 */
1731 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1732 if (IS_ERR(skb)) {
1733 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1734 hdev->name, PTR_ERR(skb));
d9c78e97 1735 return PTR_ERR(skb);
dffd30ee
THJA		 1736 }
1737 kfree_skb(skb);
1738
1739 /* Read Intel specific controller version first to allow selection of
1740 * which firmware file to load.
1741 *
1742 * The returned information are hardware variant and revision plus
1743 * firmware variant, revision and build number.
1744 */
6c483de1
LP		 1745 err = btintel_read_version(hdev, &ver);
1746 if (err)
1747 return err;
dffd30ee 1748
2064ee33
MH		 1749 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1750 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1751 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1752 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1753
1754 /* fw_patch_num indicates the version of patch the device currently
1755 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1756 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1757 */
6c483de1 1758 if (ver.fw_patch_num) {
2064ee33
MH		 1759 bt_dev_info(hdev, "Intel device is already patched. "
1760 "patch num: %02x", ver.fw_patch_num);
213445b2 1761 goto complete;
dffd30ee
THJA		 1762 }
1763
1764 /* Opens the firmware patch file based on the firmware version read
1765 * from the controller. If it fails to open the matching firmware
1766 * patch file, it tries to open the default firmware patch file.
1767 * If no patch file is found, allow the device to operate without
1768 * a patch.
1769 */
6c483de1
LP		 1770 fw = btusb_setup_intel_get_fw(hdev, &ver);
1771 if (!fw)
213445b2 1772 goto complete;
dffd30ee
THJA		 1773 fw_ptr = fw->data;
1774
28dc4b92 1775 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1776 * Only while this mode is enabled, the driver can download the
1777 * firmware patch data and configuration parameters.
1778 */
28dc4b92
LP		 1779 err = btintel_enter_mfg(hdev);
1780 if (err) {
dffd30ee 1781 release_firmware(fw);
28dc4b92 1782 return err;
dffd30ee
THJA		 1783 }
1784
dffd30ee
THJA		 1785 disable_patch = 1;
1786
1787 /* The firmware data file consists of list of Intel specific HCI
1788 * commands and its expected events. The first byte indicates the
1789 * type of the message, either HCI command or HCI event.
1790 *
1791 * It reads the command and its expected event from the firmware file,
1792 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1793 * the returned event is compared with the event read from the firmware
1794 * file and it will continue until all the messages are downloaded to
1795 * the controller.
1796 *
1797 * Once the firmware patching is completed successfully,
1798 * the manufacturer mode is disabled with reset and activating the
1799 * downloaded patch.
1800 *
1801 * If the firmware patching fails, the manufacturer mode is
1802 * disabled with reset and deactivating the patch.
1803 *
1804 * If the default patch file is used, no reset is done when disabling
1805 * the manufacturer.
1806 */
1807 while (fw->size > fw_ptr - fw->data) {
1808 int ret;
1809
1810 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1811 &disable_patch);
1812 if (ret < 0)
1813 goto exit_mfg_deactivate;
1814 }
1815
1816 release_firmware(fw);
1817
1818 if (disable_patch)
1819 goto exit_mfg_disable;
1820
1821 /* Patching completed successfully and disable the manufacturer mode
1822 * with reset and activate the downloaded firmware patches.
1823 */
28dc4b92
LP		 1824 err = btintel_exit_mfg(hdev, true, true);
1825 if (err)
1826 return err;
dffd30ee 1827
2064ee33 1828 bt_dev_info(hdev, "Intel firmware patch completed and activated");
dffd30ee 1829
213445b2 1830 goto complete;
dffd30ee
THJA		 1831
1832exit_mfg_disable:
1833 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1834 err = btintel_exit_mfg(hdev, false, false);
1835 if (err)
1836 return err;
dffd30ee 1837
2064ee33 1838 bt_dev_info(hdev, "Intel firmware patch completed");
40cb0984 1839
213445b2 1840 goto complete;
dffd30ee
THJA		 1841
1842exit_mfg_deactivate:
1843 release_firmware(fw);
1844
1845 /* Patching failed. Disable the manufacturer mode with reset and
1846 * deactivate the downloaded firmware patches.
1847 */
28dc4b92
LP		 1848 err = btintel_exit_mfg(hdev, true, false);
1849 if (err)
1850 return err;
dffd30ee 1851
2064ee33 1852 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
dffd30ee 1853
213445b2
MH		 1854complete:
1855 /* Set the event mask for Intel specific vendor events. This enables
1856 * a few extra events that are useful during general operation.
1857 */
1858 btintel_set_event_mask_mfg(hdev, false);
1859
4185a0f5 1860 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1861 return 0;
1862}
1863
cda0dd78
MH		 1864static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1865{
1866 struct sk_buff *skb;
1867 struct hci_event_hdr *hdr;
1868 struct hci_ev_cmd_complete *evt;
1869
1870 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1871 if (!skb)
1872 return -ENOMEM;
1873
4df864c1 1874 hdr = skb_put(skb, sizeof(*hdr));
cda0dd78
MH		 1875 hdr->evt = HCI_EV_CMD_COMPLETE;
1876 hdr->plen = sizeof(*evt) + 1;
1877
4df864c1 1878 evt = skb_put(skb, sizeof(*evt));
cda0dd78
MH		 1879 evt->ncmd = 0x01;
1880 evt->opcode = cpu_to_le16(opcode);
1881
634fef61 1882 skb_put_u8(skb, 0x00);
cda0dd78 1883
618e8bc2 1884 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1885
1886 return hci_recv_frame(hdev, skb);
1887}
1888
1889static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1890 int count)
1891{
1892 /* When the device is in bootloader mode, then it can send
1893 * events via the bulk endpoint. These events are treated the
1894 * same way as the ones received from the interrupt endpoint.
1895 */
1896 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1897 return btusb_recv_intr(data, buffer, count);
1898
1899 return btusb_recv_bulk(data, buffer, count);
1900}
1901
ccd6da2a
MH		 1902static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1903 unsigned int len)
1904{
1905 const struct intel_bootup *evt = ptr;
1906
1907 if (len != sizeof(*evt))
1908 return;
1909
1910 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1911 smp_mb__after_atomic();
1912 wake_up_bit(&data->flags, BTUSB_BOOTING);
1913 }
1914}
1915
1916static void btusb_intel_secure_send_result(struct btusb_data *data,
1917 const void *ptr, unsigned int len)
1918{
1919 const struct intel_secure_send_result *evt = ptr;
1920
1921 if (len != sizeof(*evt))
1922 return;
1923
1924 if (evt->result)
1925 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1926
1927 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1928 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1929 smp_mb__after_atomic();
1930 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1931 }
1932}
1933
cda0dd78
MH		 1934static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1935{
1936 struct btusb_data *data = hci_get_drvdata(hdev);
1937
1938 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1939 struct hci_event_hdr *hdr = (void *)skb->data;
1940
ccd6da2a
MH		 1941 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1942 hdr->plen > 0) {
1943 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1944 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1945
1946 switch (skb->data[2]) {
1947 case 0x02:
1948 /* When switching to the operational firmware
1949 * the device sends a vendor specific event
1950 * indicating that the bootup completed.
1951 */
1952 btusb_intel_bootup(data, ptr, len);
1953 break;
1954 case 0x06:
1955 /* When the firmware loading completes the
1956 * device sends out a vendor specific event
1957 * indicating the result of the firmware
1958 * loading.
1959 */
1960 btusb_intel_secure_send_result(data, ptr, len);
1961 break;
fad70972 1962 }
cda0dd78
MH		 1963 }
1964 }
1965
1966 return hci_recv_frame(hdev, skb);
1967}
1968
1969static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1970{
1971 struct btusb_data *data = hci_get_drvdata(hdev);
1972 struct urb *urb;
1973
1974 BT_DBG("%s", hdev->name);
1975
618e8bc2 1976 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 1977 case HCI_COMMAND_PKT:
1978 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1979 struct hci_command_hdr *cmd = (void *)skb->data;
1980 __u16 opcode = le16_to_cpu(cmd->opcode);
1981
1982 /* When in bootloader mode and the command 0xfc09
1983 * is received, it needs to be send down the
1984 * bulk endpoint. So allocate a bulk URB instead.
1985 */
1986 if (opcode == 0xfc09)
1987 urb = alloc_bulk_urb(hdev, skb);
1988 else
1989 urb = alloc_ctrl_urb(hdev, skb);
1990
1991 /* When the 0xfc01 command is issued to boot into
1992 * the operational firmware, it will actually not
1993 * send a command complete event. To keep the flow
1994 * control working inject that event here.
1995 */
1996 if (opcode == 0xfc01)
1997 inject_cmd_complete(hdev, opcode);
1998 } else {
1999 urb = alloc_ctrl_urb(hdev, skb);
2000 }
2001 if (IS_ERR(urb))
2002 return PTR_ERR(urb);
2003
2004 hdev->stat.cmd_tx++;
2005 return submit_or_queue_tx_urb(hdev, urb);
2006
2007 case HCI_ACLDATA_PKT:
2008 urb = alloc_bulk_urb(hdev, skb);
2009 if (IS_ERR(urb))
2010 return PTR_ERR(urb);
2011
2012 hdev->stat.acl_tx++;
2013 return submit_or_queue_tx_urb(hdev, urb);
2014
2015 case HCI_SCODATA_PKT:
2016 if (hci_conn_num(hdev, SCO_LINK) < 1)
2017 return -ENODEV;
2018
2019 urb = alloc_isoc_urb(hdev, skb);
2020 if (IS_ERR(urb))
2021 return PTR_ERR(urb);
2022
2023 hdev->stat.sco_tx++;
2024 return submit_tx_urb(hdev, urb);
2025 }
2026
2027 return -EILSEQ;
2028}
2029
cda0dd78
MH		 2030static int btusb_setup_intel_new(struct hci_dev *hdev)
2031{
cda0dd78 2032 struct btusb_data *data = hci_get_drvdata(hdev);
6c483de1 2033 struct intel_version ver;
faf174d2 2034 struct intel_boot_params params;
cda0dd78 2035 const struct firmware *fw;
e5889af6 2036 u32 boot_param;
cda0dd78
MH		 2037 char fwname[64];
2038 ktime_t calltime, delta, rettime;
2039 unsigned long long duration;
2040 int err;
2041
2042 BT_DBG("%s", hdev->name);
2043
04d729b8
THJA		 2044 /* Set the default boot parameter to 0x0 and it is updated to
2045 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2046 * command while downloading the firmware.
2047 */
2048 boot_param = 0x00000000;
e5889af6 2049
cda0dd78
MH		 2050 calltime = ktime_get();
2051
2052 /* Read the Intel version information to determine if the device
2053 * is in bootloader mode or if it already has operational firmware
2054 * loaded.
2055 */
6c483de1
LP		 2056 err = btintel_read_version(hdev, &ver);
2057 if (err)
2058 return err;
cda0dd78
MH		 2059
2060 /* The hardware platform number has a fixed value of 0x37 and
2061 * for now only accept this single value.
2062 */
6c483de1 2063 if (ver.hw_platform != 0x37) {
cda0dd78 2064 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
6c483de1 2065 hdev->name, ver.hw_platform);
cda0dd78
MH		 2066 return -EINVAL;
2067 }
2068
9268834b
THJA		 2069 /* Check for supported iBT hardware variants of this firmware
2070 * loading method.
a0af53b5
THJA		 2071 *
2072 * This check has been put in place to ensure correct forward
2073 * compatibility options when newer hardware variants come along.
cda0dd78 2074 */
9268834b
THJA		 2075 switch (ver.hw_variant) {
2076 case 0x0b: /* SfP */
2077 case 0x0c: /* WsP */
86a6129a 2078 case 0x11: /* JfP */
de766142 2079 case 0x12: /* ThP */
1ce0cec1
THJA		 2080 case 0x13: /* HrP */
2081 case 0x14: /* QnJ, IcP */
9268834b
THJA		 2082 break;
2083 default:
cda0dd78 2084 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
6c483de1 2085 hdev->name, ver.hw_variant);
cda0dd78
MH		 2086 return -EINVAL;
2087 }
2088
6c483de1 2089 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2090
2091 /* The firmware variant determines if the device is in bootloader
2092 * mode or is running operational firmware. The value 0x06 identifies
2093 * the bootloader and the value 0x23 identifies the operational
2094 * firmware.
2095 *
2096 * When the operational firmware is already present, then only
2097 * the check for valid Bluetooth device address is needed. This
2098 * determines if the device will be added as configured or
2099 * unconfigured controller.
2100 *
2101 * It is not possible to use the Secure Boot Parameters in this
2102 * case since that command is only available in bootloader mode.
2103 */
6c483de1 2104 if (ver.fw_variant == 0x23) {
cda0dd78 2105 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2106 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2107 return 0;
2108 }
2109
2110 /* If the device is not in bootloader mode, then the only possible
2111 * choice is to return an error and abort the device initialization.
2112 */
6c483de1 2113 if (ver.fw_variant != 0x06) {
cda0dd78 2114 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
6c483de1 2115 hdev->name, ver.fw_variant);
cda0dd78
MH		 2116 return -ENODEV;
2117 }
2118
cda0dd78
MH		 2119 /* Read the secure boot parameters to identify the operating
2120 * details of the bootloader.
2121 */
faf174d2
THJA		 2122 err = btintel_read_boot_params(hdev, &params);
2123 if (err)
2124 return err;
cda0dd78
MH		 2125
2126 /* It is required that every single firmware fragment is acknowledged
2127 * with a command complete event. If the boot parameters indicate
2128 * that this bootloader does not send them, then abort the setup.
2129 */
faf174d2 2130 if (params.limited_cce != 0x00) {
cda0dd78 2131 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
faf174d2 2132 hdev->name, params.limited_cce);
cda0dd78
MH		 2133 return -EINVAL;
2134 }
2135
2136 /* If the OTP has no valid Bluetooth device address, then there will
2137 * also be no valid address for the operational firmware.
2138 */
faf174d2 2139 if (!bacmp(&params.otp_bdaddr, BDADDR_ANY)) {
2064ee33 2140 bt_dev_info(hdev, "No device address configured");
cda0dd78
MH		 2141 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2142 }
2143
2144 /* With this Intel bootloader only the hardware variant and device
af3715e5
J		 2145 * revision information are used to select the right firmware for SfP
2146 * and WsP.
cda0dd78 2147 *
230b04ac
THJA		 2148 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2149 *
2150 * Currently the supported hardware variants are:
2151 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2152 * 12 (0x0c) for iBT3.5 (WsP)
af3715e5
J		 2153 *
2154 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2155 * variant, HW revision and FW revision, as these are dependent on CNVi
2156 * and RF Combination.
2157 *
86a6129a
THJA		 2158 * 17 (0x11) for iBT3.5 (JfP)
2159 * 18 (0x12) for iBT3.5 (ThP)
af3715e5
J		 2160 *
2161 * The firmware file name for these will be
2162 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2163 *
cda0dd78 2164 */
af3715e5
J		 2165 switch (ver.hw_variant) {
2166 case 0x0b: /* SfP */
2167 case 0x0c: /* WsP */
2168 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2169 le16_to_cpu(ver.hw_variant),
faf174d2 2170 le16_to_cpu(params.dev_revid));
af3715e5
J		 2171 break;
2172 case 0x11: /* JfP */
2173 case 0x12: /* ThP */
1ce0cec1
THJA		 2174 case 0x13: /* HrP */
2175 case 0x14: /* QnJ, IcP */
af3715e5
J		 2176 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2177 le16_to_cpu(ver.hw_variant),
2178 le16_to_cpu(ver.hw_revision),
2179 le16_to_cpu(ver.fw_revision));
2180 break;
2181 default:
2182 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2183 return -EINVAL;
2184 }
cda0dd78
MH		 2185
2186 err = request_firmware(&fw, fwname, &hdev->dev);
2187 if (err < 0) {
2188 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2189 hdev->name, err);
cda0dd78
MH		 2190 return err;
2191 }
2192
2064ee33 2193 bt_dev_info(hdev, "Found device firmware: %s", fwname);
cda0dd78 2194
52cc9168
THJA		 2195 /* Save the DDC file name for later use to apply once the firmware
2196 * downloading is done.
2197 */
af3715e5
J		 2198 switch (ver.hw_variant) {
2199 case 0x0b: /* SfP */
2200 case 0x0c: /* WsP */
2201 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2202 le16_to_cpu(ver.hw_variant),
faf174d2 2203 le16_to_cpu(params.dev_revid));
af3715e5
J		 2204 break;
2205 case 0x11: /* JfP */
2206 case 0x12: /* ThP */
1ce0cec1
THJA		 2207 case 0x13: /* HrP */
2208 case 0x14: /* QnJ, IcP */
af3715e5
J		 2209 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2210 le16_to_cpu(ver.hw_variant),
2211 le16_to_cpu(ver.hw_revision),
2212 le16_to_cpu(ver.fw_revision));
2213 break;
2214 default:
2215 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2216 return -EINVAL;
2217 }
52cc9168 2218
cda0dd78
MH		 2219 if (fw->size < 644) {
2220 BT_ERR("%s: Invalid size of firmware file (%zu)",
2221 hdev->name, fw->size);
2222 err = -EBADF;
2223 goto done;
2224 }
2225
2226 set_bit(BTUSB_DOWNLOADING, &data->flags);
2227
fbbe83c5
THJA		 2228 /* Start firmware downloading and get boot parameter */
2229 err = btintel_download_firmware(hdev, fw, &boot_param);
2230 if (err < 0)
cda0dd78 2231 goto done;
cda0dd78 2232
ce6bb929
MH		 2233 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2234
2064ee33 2235 bt_dev_info(hdev, "Waiting for firmware download to complete");
a087a98e 2236
cda0dd78
MH		 2237 /* Before switching the device into operational mode and with that
2238 * booting the loaded firmware, wait for the bootloader notification
2239 * that all fragments have been successfully received.
2240 *
a087a98e
JH		 2241 * When the event processing receives the notification, then the
2242 * BTUSB_DOWNLOADING flag will be cleared.
2243 *
2244 * The firmware loading should not take longer than 5 seconds
2245 * and thus just timeout if that happens and fail the setup
2246 * of this device.
cda0dd78 2247 */
129a7693
JH		 2248 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2249 TASK_INTERRUPTIBLE,
2250 msecs_to_jiffies(5000));
f0a70a04 2251 if (err == -EINTR) {
a087a98e 2252 BT_ERR("%s: Firmware loading interrupted", hdev->name);
a087a98e
JH		 2253 goto done;
2254 }
cda0dd78 2255
a087a98e
JH		 2256 if (err) {
2257 BT_ERR("%s: Firmware loading timeout", hdev->name);
2258 err = -ETIMEDOUT;
2259 goto done;
cda0dd78
MH		 2260 }
2261
2262 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2263 BT_ERR("%s: Firmware loading failed", hdev->name);
2264 err = -ENOEXEC;
2265 goto done;
2266 }
2267
2268 rettime = ktime_get();
2269 delta = ktime_sub(rettime, calltime);
2270 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2271
2064ee33 2272 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
cda0dd78
MH		 2273
2274done:
2275 release_firmware(fw);
2276
2277 if (err < 0)
2278 return err;
2279
2280 calltime = ktime_get();
2281
2282 set_bit(BTUSB_BOOTING, &data->flags);
2283
e5889af6
THJA		 2284 err = btintel_send_intel_reset(hdev, boot_param);
2285 if (err)
2286 return err;
cda0dd78
MH		 2287
2288 /* The bootloader will not indicate when the device is ready. This
2289 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2290 *
2291 * Booting into operational firmware should not take longer than
2292 * 1 second. However if that happens, then just fail the setup
2293 * since something went wrong.
cda0dd78 2294 */
2064ee33 2295 bt_dev_info(hdev, "Waiting for device to boot");
cda0dd78 2296
129a7693
JH		 2297 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2298 TASK_INTERRUPTIBLE,
2299 msecs_to_jiffies(1000));
cda0dd78 2300
f0a70a04 2301 if (err == -EINTR) {
fad70972
JH		 2302 BT_ERR("%s: Device boot interrupted", hdev->name);
2303 return -EINTR;
2304 }
cda0dd78 2305
fad70972
JH		 2306 if (err) {
2307 BT_ERR("%s: Device boot timeout", hdev->name);
2308 return -ETIMEDOUT;
cda0dd78
MH		 2309 }
2310
2311 rettime = ktime_get();
2312 delta = ktime_sub(rettime, calltime);
2313 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2314
2064ee33 2315 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
cda0dd78
MH		 2316
2317 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2318
52cc9168
THJA		 2319 /* Once the device is running in operational mode, it needs to apply
2320 * the device configuration (DDC) parameters.
2321 *
2322 * The device can work without DDC parameters, so even if it fails
2323 * to load the file, no need to fail the setup.
2324 */
e924d3d6 2325 btintel_load_ddc_config(hdev, fwname);
52cc9168 2326
213445b2
MH		 2327 /* Set the event mask for Intel specific vendor events. This enables
2328 * a few extra events that are useful during general operation. It
2329 * does not enable any debugging related events.
2330 *
2331 * The device will function correctly without these events enabled
2332 * and thus no need to fail the setup.
2333 */
2334 btintel_set_event_mask(hdev, false);
2335
cda0dd78
MH		 2336 return 0;
2337}
2338
bfbd45e9
THJA		 2339static int btusb_shutdown_intel(struct hci_dev *hdev)
2340{
2341 struct sk_buff *skb;
2342 long ret;
2343
2344 /* Some platforms have an issue with BT LED when the interface is
2345 * down or BT radio is turned off, which takes 5 seconds to BT LED
2346 * goes off. This command turns off the BT LED immediately.
2347 */
2348 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2349 if (IS_ERR(skb)) {
2350 ret = PTR_ERR(skb);
2351 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2352 hdev->name, ret);
2353 return ret;
2354 }
2355 kfree_skb(skb);
2356
2357 return 0;
2358}
2359
a4ccc9e3
RJ		 2360#ifdef CONFIG_PM
2361/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2362static int marvell_config_oob_wake(struct hci_dev *hdev)
2363{
2364 struct sk_buff *skb;
2365 struct btusb_data *data = hci_get_drvdata(hdev);
2366 struct device *dev = &data->udev->dev;
2367 u16 pin, gap, opcode;
2368 int ret;
2369 u8 cmd[5];
2370
2371 /* Move on if no wakeup pin specified */
2372 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2373 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2374 return 0;
2375
2376 /* Vendor specific command to configure a GPIO as wake-up pin */
2377 opcode = hci_opcode_pack(0x3F, 0x59);
2378 cmd[0] = opcode & 0xFF;
2379 cmd[1] = opcode >> 8;
2380 cmd[2] = 2; /* length of parameters that follow */
2381 cmd[3] = pin;
2382 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2383
2384 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2385 if (!skb) {
2386 bt_dev_err(hdev, "%s: No memory\n", __func__);
2387 return -ENOMEM;
2388 }
2389
59ae1d12 2390 skb_put_data(skb, cmd, sizeof(cmd));
a4ccc9e3
RJ		 2391 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2392
2393 ret = btusb_send_frame(hdev, skb);
2394 if (ret) {
2395 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2396 kfree_skb(skb);
2397 return ret;
2398 }
2399
2400 return 0;
2401}
2402#endif
2403
ae8df494
AK		 2404static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2405 const bdaddr_t *bdaddr)
2406{
2407 struct sk_buff *skb;
2408 u8 buf[8];
2409 long ret;
2410
2411 buf[0] = 0xfe;
2412 buf[1] = sizeof(bdaddr_t);
2413 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2414
2415 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2416 if (IS_ERR(skb)) {
2417 ret = PTR_ERR(skb);
2064ee33
MH		 2418 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2419 ret);
ae8df494
AK		 2420 return ret;
2421 }
2422 kfree_skb(skb);
2423
2424 return 0;
2425}
2426
5859223e
TK		 2427static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2428 const bdaddr_t *bdaddr)
2429{
2430 struct sk_buff *skb;
2431 u8 buf[10];
2432 long ret;
2433
2434 buf[0] = 0x01;
2435 buf[1] = 0x01;
2436 buf[2] = 0x00;
2437 buf[3] = sizeof(bdaddr_t);
2438 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2439
2440 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2441 if (IS_ERR(skb)) {
2442 ret = PTR_ERR(skb);
2064ee33 2443 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
5859223e
TK		 2444 return ret;
2445 }
2446 kfree_skb(skb);
2447
2448 return 0;
2449}
2450
3267c884
KBYT		 2451#define QCA_DFU_PACKET_LEN 4096
2452
2453#define QCA_GET_TARGET_VERSION 0x09
2454#define QCA_CHECK_STATUS 0x05
2455#define QCA_DFU_DOWNLOAD 0x01
2456
2457#define QCA_SYSCFG_UPDATED 0x40
2458#define QCA_PATCH_UPDATED 0x80
2459#define QCA_DFU_TIMEOUT 3000
2460
2461struct qca_version {
2462 __le32 rom_version;
2463 __le32 patch_version;
2464 __le32 ram_version;
2465 __le32 ref_clock;
2466 __u8 reserved[4];
2467} __packed;
2468
2469struct qca_rampatch_version {
2470 __le16 rom_version;
2471 __le16 patch_version;
2472} __packed;
2473
2474struct qca_device_info {
bf906b3d
KBYT		 2475 u32 rom_version;
2476 u8 rampatch_hdr; /* length of header in rampatch */
2477 u8 nvm_hdr; /* length of header in NVM */
2478 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2479};
2480
2481static const struct qca_device_info qca_devices_table[] = {
2482 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2483 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2484 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2485 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2486 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2487 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2488};
2489
2490static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2491 void *data, u16 size)
2492{
2493 struct btusb_data *btdata = hci_get_drvdata(hdev);
2494 struct usb_device *udev = btdata->udev;
2495 int pipe, err;
2496 u8 *buf;
2497
2498 buf = kmalloc(size, GFP_KERNEL);
2499 if (!buf)
2500 return -ENOMEM;
2501
2502 /* Found some of USB hosts have IOT issues with ours so that we should
2503 * not wait until HCI layer is ready.
2504 */
2505 pipe = usb_rcvctrlpipe(udev, 0);
2506 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2507 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2508 if (err < 0) {
2064ee33 2509 bt_dev_err(hdev, "Failed to access otp area (%d)", err);
3267c884
KBYT		 2510 goto done;
2511 }
2512
2513 memcpy(data, buf, size);
2514
2515done:
2516 kfree(buf);
2517
2518 return err;
2519}
2520
2521static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2522 const struct firmware *firmware,
2523 size_t hdr_size)
2524{
2525 struct btusb_data *btdata = hci_get_drvdata(hdev);
2526 struct usb_device *udev = btdata->udev;
2527 size_t count, size, sent = 0;
2528 int pipe, len, err;
2529 u8 *buf;
2530
2531 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2532 if (!buf)
2533 return -ENOMEM;
2534
2535 count = firmware->size;
2536
2537 size = min_t(size_t, count, hdr_size);
2538 memcpy(buf, firmware->data, size);
2539
2540 /* USB patches should go down to controller through USB path
2541 * because binary format fits to go down through USB channel.
2542 * USB control path is for patching headers and USB bulk is for
2543 * patch body.
2544 */
2545 pipe = usb_sndctrlpipe(udev, 0);
2546 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2547 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2548 if (err < 0) {
2064ee33 2549 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3267c884
KBYT		 2550 goto done;
2551 }
2552
2553 sent += size;
2554 count -= size;
2555
2556 while (count) {
2557 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2558
2559 memcpy(buf, firmware->data + sent, size);
2560
2561 pipe = usb_sndbulkpipe(udev, 0x02);
2562 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2563 QCA_DFU_TIMEOUT);
2564 if (err < 0) {
2064ee33
MH		 2565 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2566 sent, firmware->size, err);
3267c884
KBYT		 2567 break;
2568 }
2569
2570 if (size != len) {
2064ee33 2571 bt_dev_err(hdev, "Failed to get bulk buffer");
3267c884
KBYT		 2572 err = -EILSEQ;
2573 break;
2574 }
2575
2576 sent += size;
2577 count -= size;
2578 }
2579
2580done:
2581 kfree(buf);
2582 return err;
2583}
2584
2585static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2586 struct qca_version *ver,
2587 const struct qca_device_info *info)
2588{
2589 struct qca_rampatch_version *rver;
2590 const struct firmware *fw;
bf906b3d
KBYT		 2591 u32 ver_rom, ver_patch;
2592 u16 rver_rom, rver_patch;
3267c884
KBYT		 2593 char fwname[64];
2594 int err;
2595
bf906b3d
KBYT		 2596 ver_rom = le32_to_cpu(ver->rom_version);
2597 ver_patch = le32_to_cpu(ver->patch_version);
2598
2599 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2600
2601 err = request_firmware(&fw, fwname, &hdev->dev);
2602 if (err) {
2064ee33
MH		 2603 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2604 fwname, err);
3267c884
KBYT		 2605 return err;
2606 }
2607
2064ee33 2608 bt_dev_info(hdev, "using rampatch file: %s", fwname);
bf906b3d 2609
3267c884 2610 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2611 rver_rom = le16_to_cpu(rver->rom_version);
2612 rver_patch = le16_to_cpu(rver->patch_version);
2613
2064ee33
MH		 2614 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2615 "firmware rome 0x%x build 0x%x",
2616 rver_rom, rver_patch, ver_rom, ver_patch);
3267c884 2617
bf906b3d 2618 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2064ee33 2619 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3267c884
KBYT		 2620 err = -EINVAL;
2621 goto done;
2622 }
2623
2624 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2625
2626done:
2627 release_firmware(fw);
2628
2629 return err;
2630}
2631
2632static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2633 struct qca_version *ver,
2634 const struct qca_device_info *info)
2635{
2636 const struct firmware *fw;
2637 char fwname[64];
2638 int err;
2639
2640 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2641 le32_to_cpu(ver->rom_version));
2642
2643 err = request_firmware(&fw, fwname, &hdev->dev);
2644 if (err) {
2064ee33
MH		 2645 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2646 fwname, err);
3267c884
KBYT		 2647 return err;
2648 }
2649
2064ee33 2650 bt_dev_info(hdev, "using NVM file: %s", fwname);
3267c884
KBYT		 2651
2652 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2653
2654 release_firmware(fw);
2655
2656 return err;
2657}
2658
2659static int btusb_setup_qca(struct hci_dev *hdev)
2660{
2661 const struct qca_device_info *info = NULL;
2662 struct qca_version ver;
bf906b3d 2663 u32 ver_rom;
3267c884
KBYT		 2664 u8 status;
2665 int i, err;
2666
2667 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2668 sizeof(ver));
3267c884
KBYT		 2669 if (err < 0)
2670 return err;
2671
bf906b3d 2672 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2673 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2674 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2675 info = &qca_devices_table[i];
2676 }
2677 if (!info) {
2064ee33 2678 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3267c884
KBYT		 2679 return -ENODEV;
2680 }
2681
2682 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2683 sizeof(status));
2684 if (err < 0)
2685 return err;
2686
2687 if (!(status & QCA_PATCH_UPDATED)) {
2688 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2689 if (err < 0)
2690 return err;
2691 }
2692
2693 if (!(status & QCA_SYSCFG_UPDATED)) {
2694 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2695 if (err < 0)
2696 return err;
2697 }
2698
2699 return 0;
2700}
2701
9d08f504
MH		 2702#ifdef CONFIG_BT_HCIBTUSB_BCM
2703static inline int __set_diag_interface(struct hci_dev *hdev)
2704{
2705 struct btusb_data *data = hci_get_drvdata(hdev);
2706 struct usb_interface *intf = data->diag;
2707 int i;
2708
2709 if (!data->diag)
2710 return -ENODEV;
2711
2712 data->diag_tx_ep = NULL;
2713 data->diag_rx_ep = NULL;
2714
2715 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2716 struct usb_endpoint_descriptor *ep_desc;
2717
2718 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2719
2720 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2721 data->diag_tx_ep = ep_desc;
2722 continue;
2723 }
2724
2725 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2726 data->diag_rx_ep = ep_desc;
2727 continue;
2728 }
2729 }
2730
2731 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2064ee33 2732 bt_dev_err(hdev, "invalid diagnostic descriptors");
9d08f504
MH		 2733 return -ENODEV;
2734 }
2735
2736 return 0;
2737}
2738
2739static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2740{
2741 struct btusb_data *data = hci_get_drvdata(hdev);
2742 struct sk_buff *skb;
2743 struct urb *urb;
2744 unsigned int pipe;
2745
2746 if (!data->diag_tx_ep)
2747 return ERR_PTR(-ENODEV);
2748
2749 urb = usb_alloc_urb(0, GFP_KERNEL);
2750 if (!urb)
2751 return ERR_PTR(-ENOMEM);
2752
2753 skb = bt_skb_alloc(2, GFP_KERNEL);
2754 if (!skb) {
2755 usb_free_urb(urb);
2756 return ERR_PTR(-ENOMEM);
2757 }
2758
634fef61
JB		 2759 skb_put_u8(skb, 0xf0);
2760 skb_put_u8(skb, enable);
9d08f504
MH		 2761
2762 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2763
2764 usb_fill_bulk_urb(urb, data->udev, pipe,
2765 skb->data, skb->len, btusb_tx_complete, skb);
2766
2767 skb->dev = (void *)hdev;
2768
2769 return urb;
2770}
2771
2772static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2773{
2774 struct btusb_data *data = hci_get_drvdata(hdev);
2775 struct urb *urb;
2776
2777 if (!data->diag)
2778 return -ENODEV;
2779
2780 if (!test_bit(HCI_RUNNING, &hdev->flags))
2781 return -ENETDOWN;
2782
2783 urb = alloc_diag_urb(hdev, enable);
2784 if (IS_ERR(urb))
2785 return PTR_ERR(urb);
2786
2787 return submit_or_queue_tx_urb(hdev, urb);
2788}
2789#endif
2790
fd913ef7
RJ		 2791#ifdef CONFIG_PM
2792static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2793{
2794 struct btusb_data *data = priv;
2795
2796 pm_wakeup_event(&data->udev->dev, 0);
017789f3 2797 pm_system_wakeup();
fd913ef7
RJ		 2798
2799 /* Disable only if not already disabled (keep it balanced) */
2800 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2801 disable_irq_nosync(irq);
2802 disable_irq_wake(irq);
2803 }
2804 return IRQ_HANDLED;
2805}
2806
2807static const struct of_device_id btusb_match_table[] = {
2808 { .compatible = "usb1286,204e" },
2809 { }
2810};
2811MODULE_DEVICE_TABLE(of, btusb_match_table);
2812
2813/* Use an oob wakeup pin? */
2814static int btusb_config_oob_wake(struct hci_dev *hdev)
2815{
2816 struct btusb_data *data = hci_get_drvdata(hdev);
2817 struct device *dev = &data->udev->dev;
2818 int irq, ret;
2819
2820 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2821
2822 if (!of_match_device(btusb_match_table, dev))
2823 return 0;
2824
2825 /* Move on if no IRQ specified */
2826 irq = of_irq_get_byname(dev->of_node, "wakeup");
2827 if (irq <= 0) {
2828 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2829 return 0;
2830 }
2831
2832 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2833 0, "OOB Wake-on-BT", data);
2834 if (ret) {
2835 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2836 return ret;
2837 }
2838
2839 ret = device_init_wakeup(dev, true);
2840 if (ret) {
2841 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2842 return ret;
2843 }
2844
2845 data->oob_wake_irq = irq;
2846 disable_irq(irq);
2847 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2848 return 0;
2849}
2850#endif
2851
5e23b923 2852static int btusb_probe(struct usb_interface *intf,
89e7533d 2853 const struct usb_device_id *id)
5e23b923
MH		 2854{
2855 struct usb_endpoint_descriptor *ep_desc;
2856 struct btusb_data *data;
2857 struct hci_dev *hdev;
22f8e9db 2858 unsigned ifnum_base;
5e23b923
MH		 2859 int i, err;
2860
2861 BT_DBG("intf %p id %p", intf, id);
2862
cfeb4145 2863 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2864 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2865 if (!(id->driver_info & BTUSB_IFNUM_2))
2866 return -ENODEV;
2867 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2868 return -ENODEV;
2869 }
2870
2871 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2872
2873 if (!id->driver_info) {
2874 const struct usb_device_id *match;
89e7533d 2875
5e23b923
MH		 2876 match = usb_match_id(intf, blacklist_table);
2877 if (match)
2878 id = match;
2879 }
2880
cfeb4145
MH		 2881 if (id->driver_info == BTUSB_IGNORE)
2882 return -ENODEV;
2883
2d25f8b4
SL		 2884 if (id->driver_info & BTUSB_ATH3012) {
2885 struct usb_device *udev = interface_to_usbdev(intf);
2886
2887 /* Old firmware would otherwise let ath3k driver load
d98422cb
DR		 2888 * patch and sysconfig files
2889 */
2d25f8b4
SL		 2890 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2891 return -ENODEV;
2892 }
2893
98921dbd 2894 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2895 if (!data)
2896 return -ENOMEM;
2897
2898 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2899 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2900
2901 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2902 data->intr_ep = ep_desc;
2903 continue;
2904 }
2905
2906 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2907 data->bulk_tx_ep = ep_desc;
2908 continue;
2909 }
2910
2911 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2912 data->bulk_rx_ep = ep_desc;
2913 continue;
2914 }
2915 }
2916
98921dbd 2917 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2918 return -ENODEV;
5e23b923 2919
893ba544
MH		 2920 if (id->driver_info & BTUSB_AMP) {
2921 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2922 data->cmdreq = 0x2b;
2923 } else {
2924 data->cmdreq_type = USB_TYPE_CLASS;
2925 data->cmdreq = 0x00;
2926 }
7a9d4020 2927
5e23b923 2928 data->udev = interface_to_usbdev(intf);
5fbcd260 2929 data->intf = intf;
5e23b923 2930
5e23b923 2931 INIT_WORK(&data->work, btusb_work);
7bee549e 2932 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2933 init_usb_anchor(&data->deferred);
2934 init_usb_anchor(&data->tx_anchor);
7bee549e 2935 spin_lock_init(&data->txlock);
5e23b923 2936
5e23b923
MH		 2937 init_usb_anchor(&data->intr_anchor);
2938 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2939 init_usb_anchor(&data->isoc_anchor);
9d08f504 2940 init_usb_anchor(&data->diag_anchor);
803b5836 2941 spin_lock_init(&data->rxlock);
5e23b923 2942
cda0dd78
MH		 2943 if (id->driver_info & BTUSB_INTEL_NEW) {
2944 data->recv_event = btusb_recv_event_intel;
2945 data->recv_bulk = btusb_recv_bulk_intel;
2946 set_bit(BTUSB_BOOTLOADER, &data->flags);
2947 } else {
2948 data->recv_event = hci_recv_frame;
2949 data->recv_bulk = btusb_recv_bulk;
2950 }
2cbd3f5c 2951
5e23b923 2952 hdev = hci_alloc_dev();
98921dbd 2953 if (!hdev)
5e23b923 2954 return -ENOMEM;
5e23b923 2955
c13854ce 2956 hdev->bus = HCI_USB;
155961e8 2957 hci_set_drvdata(hdev, data);
5e23b923 2958
893ba544
MH		 2959 if (id->driver_info & BTUSB_AMP)
2960 hdev->dev_type = HCI_AMP;
2961 else
ca8bee5d 2962 hdev->dev_type = HCI_PRIMARY;
893ba544 2963
5e23b923
MH		 2964 data->hdev = hdev;
2965
2966 SET_HCIDEV_DEV(hdev, &intf->dev);
2967
9f8f962c
MH		 2968 hdev->open = btusb_open;
2969 hdev->close = btusb_close;
2970 hdev->flush = btusb_flush;
2971 hdev->send = btusb_send_frame;
2972 hdev->notify = btusb_notify;
2973
1fdb9269
HG		 2974 if (dmi_check_system(btusb_needs_reset_resume_table))
2975 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
2976
fd913ef7
RJ		 2977#ifdef CONFIG_PM
2978 err = btusb_config_oob_wake(hdev);
2979 if (err)
2980 goto out_free_dev;
a4ccc9e3
RJ		 2981
2982 /* Marvell devices may need a specific chip configuration */
2983 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
2984 err = marvell_config_oob_wake(hdev);
2985 if (err)
2986 goto out_free_dev;
2987 }
fd913ef7 2988#endif
418678b0
SJ		 2989 if (id->driver_info & BTUSB_CW6622)
2990 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2991
6c9d435d
MH		 2992 if (id->driver_info & BTUSB_BCM2045)
2993 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2994
9f8f962c
MH		 2995 if (id->driver_info & BTUSB_BCM92035)
2996 hdev->setup = btusb_setup_bcm92035;
5e23b923 2997
c2bfb100 2998#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2999 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 3000 hdev->manufacturer = 15;
c2bfb100 3001 hdev->setup = btbcm_setup_patchram;
9d08f504 3002 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 3003 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 3004
3005 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3006 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 3007 }
10d4c673 3008
9d08f504 3009 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 3010 hdev->manufacturer = 15;
c2bfb100 3011 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 3012 hdev->set_diag = btusb_bcm_set_diag;
3013
3014 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 3015 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 3016 }
c2bfb100 3017#endif
17b2772b 3018
cb8d6597 3019 if (id->driver_info & BTUSB_INTEL) {
49a5f782 3020 hdev->manufacturer = 2;
dffd30ee 3021 hdev->setup = btusb_setup_intel;
bfbd45e9 3022 hdev->shutdown = btusb_shutdown_intel;
3e24767b 3023 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 3024 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 3025 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 3026 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 3027 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 3028 }
dffd30ee 3029
cda0dd78 3030 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 3031 hdev->manufacturer = 2;
cda0dd78
MH		 3032 hdev->send = btusb_send_frame_intel;
3033 hdev->setup = btusb_setup_intel_new;
eeb6abe9 3034 hdev->hw_error = btintel_hw_error;
6d2e50d2 3035 hdev->set_diag = btintel_set_diag;
4185a0f5 3036 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 3037 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 3038 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 3039 }
3040
ae8df494
AK		 3041 if (id->driver_info & BTUSB_MARVELL)
3042 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3043
661cf88a
MH		 3044 if (id->driver_info & BTUSB_SWAVE) {
3045 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 3046 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 3047 }
d57dbe77 3048
e4c534bb
MH		 3049 if (id->driver_info & BTUSB_INTEL_BOOT) {
3050 hdev->manufacturer = 2;
40df783d 3051 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 3052 }
40df783d 3053
79f0c87d 3054 if (id->driver_info & BTUSB_ATH3012) {
5859223e 3055 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 3056 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 3057 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3058 }
5859223e 3059
3267c884
KBYT		 3060 if (id->driver_info & BTUSB_QCA_ROME) {
3061 data->setup_on_usb = btusb_setup_qca;
3062 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3063 }
3064
db33c77d 3065#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 3066 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 3067 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 3068
3069 /* Realtek devices lose their updated firmware over suspend,
3070 * but the USB hub doesn't notice any status change.
3071 * Explicitly request a device reset on resume.
3072 */
61f5acea 3073 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
04b8c814 3074 }
db33c77d 3075#endif
a2698a9b 3076
893ba544
MH		 3077 if (id->driver_info & BTUSB_AMP) {
3078 /* AMP controllers do not support SCO packets */
3079 data->isoc = NULL;
3080 } else {
22f8e9db
MH		 3081 /* Interface orders are hardcoded in the specification */
3082 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
459232fc 3083 data->isoc_ifnum = ifnum_base + 1;
893ba544 3084 }
9bfa35fe 3085
7a9d4020 3086 if (!reset)
a6c511c6 3087 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 3088
3089 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3090 if (!disable_scofix)
3091 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3092 }
3093
9bfa35fe
MH		 3094 if (id->driver_info & BTUSB_BROKEN_ISOC)
3095 data->isoc = NULL;
3096
7a9d4020
MH		 3097 if (id->driver_info & BTUSB_DIGIANSWER) {
3098 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 3099 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 3100 }
3101
3102 if (id->driver_info & BTUSB_CSR) {
3103 struct usb_device *udev = data->udev;
81cac64b 3104 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 3105
3106 /* Old firmware would otherwise execute USB reset */
81cac64b 3107 if (bcdDevice < 0x117)
a6c511c6 3108 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 3109
3110 /* Fake CSR devices with broken commands */
6cafcd95 3111 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 3112 hdev->setup = btusb_setup_csr;
49c989a0
JP		 3113
3114 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 3115 }
3116
cfeb4145 3117 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 3118 struct usb_device *udev = data->udev;
cfeb4145 3119
7a9d4020 3120 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 3121 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3122 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3123 }
3124
3a5ef20c
MH		 3125 if (id->driver_info & BTUSB_INTEL_BOOT) {
3126 /* A bug in the bootloader causes that interrupt interface is
3127 * only enabled after receiving SetInterface(0, AltSetting=0).
3128 */
3129 err = usb_set_interface(data->udev, 0, 0);
3130 if (err < 0) {
3131 BT_ERR("failed to set interface 0, alt 0 %d", err);
10ab133b 3132 goto out_free_dev;
3a5ef20c
MH		 3133 }
3134 }
3135
9bfa35fe
MH		 3136 if (data->isoc) {
3137 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3138 data->isoc, data);
10ab133b
RJ		 3139 if (err < 0)
3140 goto out_free_dev;
9bfa35fe
MH		 3141 }
3142
9d08f504
MH		 3143#ifdef CONFIG_BT_HCIBTUSB_BCM
3144 if (data->diag) {
3145 if (!usb_driver_claim_interface(&btusb_driver,
3146 data->diag, data))
3147 __set_diag_interface(hdev);
3148 else
3149 data->diag = NULL;
3150 }
3151#endif
3152
eff2d68c
HG		 3153 if (enable_autosuspend)
3154 usb_enable_autosuspend(data->udev);
3155
5e23b923 3156 err = hci_register_dev(hdev);
10ab133b
RJ		 3157 if (err < 0)
3158 goto out_free_dev;
5e23b923
MH		 3159
3160 usb_set_intfdata(intf, data);
3161
3162 return 0;
10ab133b
RJ		 3163
3164out_free_dev:
3165 hci_free_dev(hdev);
3166 return err;
5e23b923
MH		 3167}
3168
3169static void btusb_disconnect(struct usb_interface *intf)
3170{
3171 struct btusb_data *data = usb_get_intfdata(intf);
3172 struct hci_dev *hdev;
3173
3174 BT_DBG("intf %p", intf);
3175
3176 if (!data)
3177 return;
3178
3179 hdev = data->hdev;
5fbcd260
MH		 3180 usb_set_intfdata(data->intf, NULL);
3181
3182 if (data->isoc)
3183 usb_set_intfdata(data->isoc, NULL);
5e23b923 3184
9d08f504
MH		 3185 if (data->diag)
3186 usb_set_intfdata(data->diag, NULL);
3187
5e23b923
MH		 3188 hci_unregister_dev(hdev);
3189
9d08f504
MH		 3190 if (intf == data->intf) {
3191 if (data->isoc)
3192 usb_driver_release_interface(&btusb_driver, data->isoc);
3193 if (data->diag)
3194 usb_driver_release_interface(&btusb_driver, data->diag);
3195 } else if (intf == data->isoc) {
3196 if (data->diag)
3197 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3198 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3199 } else if (intf == data->diag) {
3200 usb_driver_release_interface(&btusb_driver, data->intf);
3201 if (data->isoc)
3202 usb_driver_release_interface(&btusb_driver, data->isoc);
3203 }
5fbcd260 3204
fd913ef7
RJ		 3205 if (data->oob_wake_irq)
3206 device_init_wakeup(&data->udev->dev, false);
3207
5e23b923
MH		 3208 hci_free_dev(hdev);
3209}
3210
7bee549e 3211#ifdef CONFIG_PM
6a88adf2
MH		 3212static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3213{
3214 struct btusb_data *data = usb_get_intfdata(intf);
3215
3216 BT_DBG("intf %p", intf);
3217
3218 if (data->suspend_count++)
3219 return 0;
3220
7bee549e 3221 spin_lock_irq(&data->txlock);
5b1b0b81 3222 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3223 set_bit(BTUSB_SUSPENDING, &data->flags);
3224 spin_unlock_irq(&data->txlock);
3225 } else {
3226 spin_unlock_irq(&data->txlock);
3227 data->suspend_count--;
3228 return -EBUSY;
3229 }
3230
6a88adf2
MH		 3231 cancel_work_sync(&data->work);
3232
7bee549e 3233 btusb_stop_traffic(data);
6a88adf2
MH		 3234 usb_kill_anchored_urbs(&data->tx_anchor);
3235
fd913ef7
RJ		 3236 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3237 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3238 enable_irq_wake(data->oob_wake_irq);
3239 enable_irq(data->oob_wake_irq);
3240 }
3241
6a88adf2
MH		 3242 return 0;
3243}
3244
7bee549e
ON		 3245static void play_deferred(struct btusb_data *data)
3246{
3247 struct urb *urb;
3248 int err;
3249
3250 while ((urb = usb_get_from_anchor(&data->deferred))) {
19cfe912
JC		 3251 usb_anchor_urb(urb, &data->tx_anchor);
3252
7bee549e 3253 err = usb_submit_urb(urb, GFP_ATOMIC);
19cfe912
JC		 3254 if (err < 0) {
3255 if (err != -EPERM && err != -ENODEV)
3256 BT_ERR("%s urb %p submission failed (%d)",
3257 data->hdev->name, urb, -err);
3258 kfree(urb->setup_packet);
3259 usb_unanchor_urb(urb);
3260 usb_free_urb(urb);
7bee549e 3261 break;
19cfe912 3262 }
7bee549e
ON		 3263
3264 data->tx_in_flight++;
19cfe912
JC		 3265 usb_free_urb(urb);
3266 }
3267
3268 /* Cleanup the rest deferred urbs. */
3269 while ((urb = usb_get_from_anchor(&data->deferred))) {
3270 kfree(urb->setup_packet);
3271 usb_free_urb(urb);
7bee549e 3272 }
7bee549e
ON		 3273}
3274
6a88adf2
MH		 3275static int btusb_resume(struct usb_interface *intf)
3276{
3277 struct btusb_data *data = usb_get_intfdata(intf);
3278 struct hci_dev *hdev = data->hdev;
7bee549e 3279 int err = 0;
6a88adf2
MH		 3280
3281 BT_DBG("intf %p", intf);
3282
3283 if (--data->suspend_count)
3284 return 0;
3285
fd913ef7
RJ		 3286 /* Disable only if not already disabled (keep it balanced) */
3287 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3288 disable_irq(data->oob_wake_irq);
3289 disable_irq_wake(data->oob_wake_irq);
3290 }
3291
6a88adf2 3292 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3293 goto done;
6a88adf2
MH		 3294
3295 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3296 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3297 if (err < 0) {
3298 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3299 goto failed;
6a88adf2
MH		 3300 }
3301 }
3302
3303 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3304 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3305 if (err < 0) {
6a88adf2 3306 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3307 goto failed;
3308 }
3309
3310 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3311 }
3312
3313 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3314 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3315 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3316 else
3317 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3318 }
3319
7bee549e
ON		 3320 spin_lock_irq(&data->txlock);
3321 play_deferred(data);
3322 clear_bit(BTUSB_SUSPENDING, &data->flags);
3323 spin_unlock_irq(&data->txlock);
3324 schedule_work(&data->work);
3325
6a88adf2 3326 return 0;
7bee549e
ON		 3327
3328failed:
3329 usb_scuttle_anchored_urbs(&data->deferred);
3330done:
3331 spin_lock_irq(&data->txlock);
3332 clear_bit(BTUSB_SUSPENDING, &data->flags);
3333 spin_unlock_irq(&data->txlock);
3334
3335 return err;
6a88adf2 3336}
7bee549e 3337#endif
6a88adf2 3338
5e23b923
MH		 3339static struct usb_driver btusb_driver = {
3340 .name = "btusb",
3341 .probe = btusb_probe,
3342 .disconnect = btusb_disconnect,
7bee549e 3343#ifdef CONFIG_PM
6a88adf2
MH		 3344 .suspend = btusb_suspend,
3345 .resume = btusb_resume,
7bee549e 3346#endif
5e23b923 3347 .id_table = btusb_table,
7bee549e 3348 .supports_autosuspend = 1,
e1f12eb6 3349 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3350};
3351
93f1508c 3352module_usb_driver(btusb_driver);
5e23b923 3353
cfeb4145
MH		 3354module_param(disable_scofix, bool, 0644);
3355MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3356
3357module_param(force_scofix, bool, 0644);
3358MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3359
eff2d68c
HG		 3360module_param(enable_autosuspend, bool, 0644);
3361MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
3362
cfeb4145
MH		 3363module_param(reset, bool, 0644);
3364MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3365
5e23b923
MH		 3366MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3367MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3368MODULE_VERSION(VERSION);
3369MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)