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Bluetooth: hciuart: Fix to use boolean flag with u32 type
[mirror_ubuntu-bionic-kernel.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
a2698a9b 27#include <asm/unaligned.h>
5e23b923
MH		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
4185a0f5 32#include "btintel.h"
1df1f591 33#include "btbcm.h"
db33c77d 34#include "btrtl.h"
1df1f591 35
34dced9b 36#define VERSION "0.8"
cfeb4145 37
90ab5ee9
RR		 38static bool disable_scofix;
39static bool force_scofix;
7a9d4020 40
917a3337 41static bool reset = true;
cfeb4145
MH		 42
43static struct usb_driver btusb_driver;
44
45#define BTUSB_IGNORE 0x01
7a9d4020
MH		 46#define BTUSB_DIGIANSWER 0x02
47#define BTUSB_CSR 0x04
48#define BTUSB_SNIFFER 0x08
49#define BTUSB_BCM92035 0x10
50#define BTUSB_BROKEN_ISOC 0x20
51#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 52#define BTUSB_ATH3012 0x80
dffd30ee 53#define BTUSB_INTEL 0x100
40df783d
MH		 54#define BTUSB_INTEL_BOOT 0x200
55#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 56#define BTUSB_MARVELL 0x800
4fcef8ed 57#define BTUSB_SWAVE 0x1000
cda0dd78 58#define BTUSB_INTEL_NEW 0x2000
893ba544 59#define BTUSB_AMP 0x4000
3267c884 60#define BTUSB_QCA_ROME 0x8000
17b2772b 61#define BTUSB_BCM_APPLE 0x10000
a2698a9b 62#define BTUSB_REALTEK 0x20000
5e23b923 63
54265202 64static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67
893ba544
MH		 68 /* Generic Bluetooth AMP device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
70
d63b2826
DD		 71 /* Generic Bluetooth USB interface */
72 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
73
1fa6535f 74 /* Apple-specific (Broadcom) devices */
17b2772b
MH		 75 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
76 .driver_info = BTUSB_BCM_APPLE },
1fa6535f 77
178c059e
CYC		 78 /* MediaTek MT76x0E */
79 { USB_DEVICE(0x0e8d, 0x763f) },
80
c510eae3 81 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 82 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 83
3cd01976
NI		 84 /* Apple MacBookPro 7,1 */
85 { USB_DEVICE(0x05ac, 0x8213) },
86
0a79f674
CL		 87 /* Apple iMac11,1 */
88 { USB_DEVICE(0x05ac, 0x8215) },
89
9c047157
NI		 90 /* Apple MacBookPro6,2 */
91 { USB_DEVICE(0x05ac, 0x8218) },
92
3e3ede7d
EH		 93 /* Apple MacBookAir3,1, MacBookAir3,2 */
94 { USB_DEVICE(0x05ac, 0x821b) },
95
a63b723d
PAVM		 96 /* Apple MacBookAir4,1 */
97 { USB_DEVICE(0x05ac, 0x821f) },
98
88d377b6
MAP		 99 /* Apple MacBookPro8,2 */
100 { USB_DEVICE(0x05ac, 0x821a) },
101
f78b6826
JK		 102 /* Apple MacMini5,1 */
103 { USB_DEVICE(0x05ac, 0x8281) },
104
cfeb4145 105 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 106 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 107
108 /* Bluetooth Ultraport Module from IBM */
109 { USB_DEVICE(0x04bf, 0x030a) },
110
111 /* ALPS Modules with non-standard id */
112 { USB_DEVICE(0x044e, 0x3001) },
113 { USB_DEVICE(0x044e, 0x3002) },
114
115 /* Ericsson with non-standard id */
116 { USB_DEVICE(0x0bdb, 0x1002) },
117
118 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 119 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 120
d13431ca
WJS		 121 /* Broadcom BCM20702A0 */
122 { USB_DEVICE(0x413c, 0x8197) },
123
d049f4e5
MH		 124 /* Broadcom BCM20702B0 (Dynex/Insignia) */
125 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
126
98514036 127 /* Foxconn - Hon Hai */
6029ddc2
HS		 128 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
129 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 130
8f0c304c
MD		 131 /* Lite-On Technology - Broadcom based */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
134
0b880062 135 /* Broadcom devices with vendor specific id */
10d4c673
PG		 136 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 138
c2aef6e8 139 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 140 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 142
5bcecf32 143 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 144 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 146
9113bfd8 147 /* IMC Networks - Broadcom based */
6331c686
MH		 148 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 150
40df783d 151 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 152 { USB_DEVICE(0x8087, 0x0a5a),
153 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 154
5e23b923
MH		 155 { } /* Terminating entry */
156};
157
158MODULE_DEVICE_TABLE(usb, btusb_table);
159
54265202 160static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 161 /* CSR BlueCore devices */
162 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
163
164 /* Broadcom BCM2033 without firmware */
165 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
166
be93112a 167 /* Atheros 3011 with sflash firmware */
0b880062
AS		 168 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
169 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 170 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 171 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 172 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 173 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 174 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 175
509e7861
CYC		 176 /* Atheros AR9285 Malbec with sflash firmware */
177 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
178
d9f51b51 179 /* Atheros 3012 with sflash firmware */
0b880062
AS		 180 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 185 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 186 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 187 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 191 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 192 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 194 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 195 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 196 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 197 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 199 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 200 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 201 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 202 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 203 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 204 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 205 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 206 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 207 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 208 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 209 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 210 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 211 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 212 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 213 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 215 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 216 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 217 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 218 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 219 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
0d0cef61 220 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
d9f51b51 221
e9036e33
CYC		 222 /* Atheros AR5BBU12 with sflash firmware */
223 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
224
85d59726 225 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 226 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 227 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 228
3267c884 229 /* QCA ROME chipset */
2054111b 230 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
c9e44474
MH		 231 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
232 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 233
cfeb4145 234 /* Broadcom BCM2035 */
7a9d4020 235 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 236 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
237 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 238
239 /* Broadcom BCM2045 */
7a9d4020
MH		 240 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
241 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 242
cfeb4145 243 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 244 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
245 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 246
247 /* HP laptop with Broadcom chip */
7a9d4020 248 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 249
250 /* Dell laptop with Broadcom chip */
7a9d4020 251 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 252
5ddd4a60 253 /* Dell Wireless 370 and 410 devices */
7a9d4020 254 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 255 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 256
7a9d4020
MH		 257 /* Belkin F8T012 and F8T013 devices */
258 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 260
5ddd4a60
MH		 261 /* Asus WL-BTD202 device */
262 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
263
264 /* Kensington Bluetooth USB adapter */
265 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
266
cfeb4145
MH		 267 /* RTX Telecom based adapters with buggy SCO support */
268 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
269 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
270
271 /* CONWISE Technology based adapters with buggy SCO support */
272 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
273
4fcef8ed 274 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 275 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 276
cfeb4145
MH		 277 /* Digianswer devices */
278 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
279 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
280
281 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 282 { USB_DEVICE(0x0a12, 0x0002),
283 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 284
285 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 286 { USB_DEVICE(0x16d3, 0x0002),
287 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 288
cb1ee89f
MH		 289 /* Marvell Bluetooth devices */
290 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
291 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
292
d0ac9eb7 293 /* Intel Bluetooth devices */
407550fe 294 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 295 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 296 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 297 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 298
d0ac9eb7
MH		 299 /* Other Intel Bluetooth devices */
300 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
301 .driver_info = BTUSB_IGNORE },
ae8df494 302
a2698a9b
DD		 303 /* Realtek Bluetooth devices */
304 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
305 .driver_info = BTUSB_REALTEK },
306
307 /* Additional Realtek 8723AE Bluetooth devices */
308 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
309 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
310
311 /* Additional Realtek 8723BE Bluetooth devices */
312 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
314 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
315 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
316 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
317
318 /* Additional Realtek 8821AE Bluetooth devices */
319 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
320 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
321 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
322 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
324
5e23b923
MH		 325 { } /* Terminating entry */
326};
327
9bfa35fe
MH		 328#define BTUSB_MAX_ISOC_FRAMES 10
329
5e23b923
MH		 330#define BTUSB_INTR_RUNNING 0
331#define BTUSB_BULK_RUNNING 1
9bfa35fe 332#define BTUSB_ISOC_RUNNING 2
7bee549e 333#define BTUSB_SUSPENDING 3
08b8b6c4 334#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 335#define BTUSB_BOOTLOADER 5
336#define BTUSB_DOWNLOADING 6
ce6bb929 337#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 338#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 339#define BTUSB_BOOTING 9
04b8c814 340#define BTUSB_RESET_RESUME 10
5e23b923
MH		 341
342struct btusb_data {
343 struct hci_dev *hdev;
344 struct usb_device *udev;
5fbcd260 345 struct usb_interface *intf;
9bfa35fe 346 struct usb_interface *isoc;
5e23b923 347
5e23b923
MH		 348 unsigned long flags;
349
350 struct work_struct work;
7bee549e 351 struct work_struct waker;
5e23b923 352
803b5836 353 struct usb_anchor deferred;
5e23b923 354 struct usb_anchor tx_anchor;
803b5836
MH		 355 int tx_in_flight;
356 spinlock_t txlock;
357
5e23b923
MH		 358 struct usb_anchor intr_anchor;
359 struct usb_anchor bulk_anchor;
9bfa35fe 360 struct usb_anchor isoc_anchor;
803b5836
MH		 361 spinlock_t rxlock;
362
363 struct sk_buff *evt_skb;
364 struct sk_buff *acl_skb;
365 struct sk_buff *sco_skb;
5e23b923
MH		 366
367 struct usb_endpoint_descriptor *intr_ep;
368 struct usb_endpoint_descriptor *bulk_tx_ep;
369 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 370 struct usb_endpoint_descriptor *isoc_tx_ep;
371 struct usb_endpoint_descriptor *isoc_rx_ep;
372
7a9d4020 373 __u8 cmdreq_type;
893ba544 374 __u8 cmdreq;
7a9d4020 375
43c2e57f 376 unsigned int sco_num;
9bfa35fe 377 int isoc_altsetting;
6a88adf2 378 int suspend_count;
2cbd3f5c 379
97307f51 380 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 381 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 382
383 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 384};
385
803b5836
MH		 386static inline void btusb_free_frags(struct btusb_data *data)
387{
388 unsigned long flags;
389
390 spin_lock_irqsave(&data->rxlock, flags);
391
392 kfree_skb(data->evt_skb);
393 data->evt_skb = NULL;
394
395 kfree_skb(data->acl_skb);
396 data->acl_skb = NULL;
397
398 kfree_skb(data->sco_skb);
399 data->sco_skb = NULL;
400
401 spin_unlock_irqrestore(&data->rxlock, flags);
402}
403
1ffa4ad0
MH		 404static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
405{
803b5836
MH		 406 struct sk_buff *skb;
407 int err = 0;
408
409 spin_lock(&data->rxlock);
410 skb = data->evt_skb;
411
412 while (count) {
413 int len;
414
415 if (!skb) {
416 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
417 if (!skb) {
418 err = -ENOMEM;
419 break;
420 }
421
422 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
423 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
424 }
425
426 len = min_t(uint, bt_cb(skb)->expect, count);
427 memcpy(skb_put(skb, len), buffer, len);
428
429 count -= len;
430 buffer += len;
431 bt_cb(skb)->expect -= len;
432
433 if (skb->len == HCI_EVENT_HDR_SIZE) {
434 /* Complete event header */
435 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
436
437 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
438 kfree_skb(skb);
439 skb = NULL;
440
441 err = -EILSEQ;
442 break;
443 }
444 }
445
446 if (bt_cb(skb)->expect == 0) {
447 /* Complete frame */
97307f51 448 data->recv_event(data->hdev, skb);
803b5836
MH		 449 skb = NULL;
450 }
451 }
452
453 data->evt_skb = skb;
454 spin_unlock(&data->rxlock);
455
456 return err;
1ffa4ad0
MH		 457}
458
459static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
460{
803b5836
MH		 461 struct sk_buff *skb;
462 int err = 0;
463
464 spin_lock(&data->rxlock);
465 skb = data->acl_skb;
466
467 while (count) {
468 int len;
469
470 if (!skb) {
471 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
472 if (!skb) {
473 err = -ENOMEM;
474 break;
475 }
476
477 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
478 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
479 }
480
481 len = min_t(uint, bt_cb(skb)->expect, count);
482 memcpy(skb_put(skb, len), buffer, len);
483
484 count -= len;
485 buffer += len;
486 bt_cb(skb)->expect -= len;
487
488 if (skb->len == HCI_ACL_HDR_SIZE) {
489 __le16 dlen = hci_acl_hdr(skb)->dlen;
490
491 /* Complete ACL header */
492 bt_cb(skb)->expect = __le16_to_cpu(dlen);
493
494 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
495 kfree_skb(skb);
496 skb = NULL;
497
498 err = -EILSEQ;
499 break;
500 }
501 }
502
503 if (bt_cb(skb)->expect == 0) {
504 /* Complete frame */
505 hci_recv_frame(data->hdev, skb);
506 skb = NULL;
507 }
508 }
509
510 data->acl_skb = skb;
511 spin_unlock(&data->rxlock);
512
513 return err;
1ffa4ad0
MH		 514}
515
516static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
517{
803b5836
MH		 518 struct sk_buff *skb;
519 int err = 0;
520
521 spin_lock(&data->rxlock);
522 skb = data->sco_skb;
523
524 while (count) {
525 int len;
526
527 if (!skb) {
528 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
529 if (!skb) {
530 err = -ENOMEM;
531 break;
532 }
533
534 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
535 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
536 }
537
538 len = min_t(uint, bt_cb(skb)->expect, count);
539 memcpy(skb_put(skb, len), buffer, len);
540
541 count -= len;
542 buffer += len;
543 bt_cb(skb)->expect -= len;
544
545 if (skb->len == HCI_SCO_HDR_SIZE) {
546 /* Complete SCO header */
547 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
548
549 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
550 kfree_skb(skb);
551 skb = NULL;
552
553 err = -EILSEQ;
554 break;
555 }
556 }
557
558 if (bt_cb(skb)->expect == 0) {
559 /* Complete frame */
560 hci_recv_frame(data->hdev, skb);
561 skb = NULL;
562 }
563 }
564
565 data->sco_skb = skb;
566 spin_unlock(&data->rxlock);
567
568 return err;
1ffa4ad0
MH		 569}
570
5e23b923
MH		 571static void btusb_intr_complete(struct urb *urb)
572{
573 struct hci_dev *hdev = urb->context;
155961e8 574 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 575 int err;
576
89e7533d
MH		 577 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
578 urb->actual_length);
5e23b923
MH		 579
580 if (!test_bit(HCI_RUNNING, &hdev->flags))
581 return;
582
583 if (urb->status == 0) {
9bfa35fe
MH		 584 hdev->stat.byte_rx += urb->actual_length;
585
1ffa4ad0
MH		 586 if (btusb_recv_intr(data, urb->transfer_buffer,
587 urb->actual_length) < 0) {
5e23b923
MH		 588 BT_ERR("%s corrupted event packet", hdev->name);
589 hdev->stat.err_rx++;
590 }
85560c4a
CC		 591 } else if (urb->status == -ENOENT) {
592 /* Avoid suspend failed when usb_kill_urb */
593 return;
5e23b923
MH		 594 }
595
596 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
597 return;
598
7bee549e 599 usb_mark_last_busy(data->udev);
5e23b923
MH		 600 usb_anchor_urb(urb, &data->intr_anchor);
601
602 err = usb_submit_urb(urb, GFP_ATOMIC);
603 if (err < 0) {
4935f1c1
PB		 604 /* -EPERM: urb is being killed;
605 * -ENODEV: device got disconnected */
606 if (err != -EPERM && err != -ENODEV)
61faddf6 607 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 608 hdev->name, urb, -err);
5e23b923
MH		 609 usb_unanchor_urb(urb);
610 }
611}
612
2eda66f4 613static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 614{
155961e8 615 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 616 struct urb *urb;
617 unsigned char *buf;
618 unsigned int pipe;
619 int err, size;
620
621 BT_DBG("%s", hdev->name);
622
9bfa35fe
MH		 623 if (!data->intr_ep)
624 return -ENODEV;
625
2eda66f4 626 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 627 if (!urb)
628 return -ENOMEM;
629
630 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
631
2eda66f4 632 buf = kmalloc(size, mem_flags);
5e23b923
MH		 633 if (!buf) {
634 usb_free_urb(urb);
635 return -ENOMEM;
636 }
637
638 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
639
640 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 641 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 642
643 urb->transfer_flags |= URB_FREE_BUFFER;
644
645 usb_anchor_urb(urb, &data->intr_anchor);
646
2eda66f4 647 err = usb_submit_urb(urb, mem_flags);
5e23b923 648 if (err < 0) {
d4b8d1c9
PB		 649 if (err != -EPERM && err != -ENODEV)
650 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 651 hdev->name, urb, -err);
5e23b923 652 usb_unanchor_urb(urb);
5e23b923
MH		 653 }
654
655 usb_free_urb(urb);
656
657 return err;
658}
659
660static void btusb_bulk_complete(struct urb *urb)
661{
662 struct hci_dev *hdev = urb->context;
155961e8 663 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 664 int err;
665
89e7533d
MH		 666 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
667 urb->actual_length);
5e23b923
MH		 668
669 if (!test_bit(HCI_RUNNING, &hdev->flags))
670 return;
671
672 if (urb->status == 0) {
9bfa35fe
MH		 673 hdev->stat.byte_rx += urb->actual_length;
674
2cbd3f5c 675 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 676 urb->actual_length) < 0) {
5e23b923
MH		 677 BT_ERR("%s corrupted ACL packet", hdev->name);
678 hdev->stat.err_rx++;
679 }
85560c4a
CC		 680 } else if (urb->status == -ENOENT) {
681 /* Avoid suspend failed when usb_kill_urb */
682 return;
5e23b923
MH		 683 }
684
685 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
686 return;
687
688 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 689 usb_mark_last_busy(data->udev);
5e23b923
MH		 690
691 err = usb_submit_urb(urb, GFP_ATOMIC);
692 if (err < 0) {
4935f1c1
PB		 693 /* -EPERM: urb is being killed;
694 * -ENODEV: device got disconnected */
695 if (err != -EPERM && err != -ENODEV)
61faddf6 696 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 697 hdev->name, urb, -err);
5e23b923
MH		 698 usb_unanchor_urb(urb);
699 }
700}
701
2eda66f4 702static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 703{
155961e8 704 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 705 struct urb *urb;
706 unsigned char *buf;
707 unsigned int pipe;
290ba200 708 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 709
710 BT_DBG("%s", hdev->name);
711
9bfa35fe
MH		 712 if (!data->bulk_rx_ep)
713 return -ENODEV;
714
2eda66f4 715 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 716 if (!urb)
717 return -ENOMEM;
718
2eda66f4 719 buf = kmalloc(size, mem_flags);
5e23b923
MH		 720 if (!buf) {
721 usb_free_urb(urb);
722 return -ENOMEM;
723 }
724
725 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
726
89e7533d
MH		 727 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
728 btusb_bulk_complete, hdev);
5e23b923
MH		 729
730 urb->transfer_flags |= URB_FREE_BUFFER;
731
7bee549e 732 usb_mark_last_busy(data->udev);
5e23b923
MH		 733 usb_anchor_urb(urb, &data->bulk_anchor);
734
2eda66f4 735 err = usb_submit_urb(urb, mem_flags);
5e23b923 736 if (err < 0) {
d4b8d1c9
PB		 737 if (err != -EPERM && err != -ENODEV)
738 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 739 hdev->name, urb, -err);
5e23b923 740 usb_unanchor_urb(urb);
5e23b923
MH		 741 }
742
743 usb_free_urb(urb);
744
745 return err;
746}
747
9bfa35fe
MH		 748static void btusb_isoc_complete(struct urb *urb)
749{
750 struct hci_dev *hdev = urb->context;
155961e8 751 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 752 int i, err;
753
89e7533d
MH		 754 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
755 urb->actual_length);
9bfa35fe
MH		 756
757 if (!test_bit(HCI_RUNNING, &hdev->flags))
758 return;
759
760 if (urb->status == 0) {
761 for (i = 0; i < urb->number_of_packets; i++) {
762 unsigned int offset = urb->iso_frame_desc[i].offset;
763 unsigned int length = urb->iso_frame_desc[i].actual_length;
764
765 if (urb->iso_frame_desc[i].status)
766 continue;
767
768 hdev->stat.byte_rx += length;
769
1ffa4ad0
MH		 770 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
771 length) < 0) {
9bfa35fe
MH		 772 BT_ERR("%s corrupted SCO packet", hdev->name);
773 hdev->stat.err_rx++;
774 }
775 }
85560c4a
CC		 776 } else if (urb->status == -ENOENT) {
777 /* Avoid suspend failed when usb_kill_urb */
778 return;
9bfa35fe
MH		 779 }
780
781 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
782 return;
783
784 usb_anchor_urb(urb, &data->isoc_anchor);
785
786 err = usb_submit_urb(urb, GFP_ATOMIC);
787 if (err < 0) {
4935f1c1
PB		 788 /* -EPERM: urb is being killed;
789 * -ENODEV: device got disconnected */
790 if (err != -EPERM && err != -ENODEV)
61faddf6 791 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 792 hdev->name, urb, -err);
9bfa35fe
MH		 793 usb_unanchor_urb(urb);
794 }
795}
796
42b16b3f 797static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 798{
799 int i, offset = 0;
800
801 BT_DBG("len %d mtu %d", len, mtu);
802
803 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
804 i++, offset += mtu, len -= mtu) {
805 urb->iso_frame_desc[i].offset = offset;
806 urb->iso_frame_desc[i].length = mtu;
807 }
808
809 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
810 urb->iso_frame_desc[i].offset = offset;
811 urb->iso_frame_desc[i].length = len;
812 i++;
813 }
814
815 urb->number_of_packets = i;
816}
817
2eda66f4 818static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 819{
155961e8 820 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 821 struct urb *urb;
822 unsigned char *buf;
823 unsigned int pipe;
824 int err, size;
825
826 BT_DBG("%s", hdev->name);
827
828 if (!data->isoc_rx_ep)
829 return -ENODEV;
830
2eda66f4 831 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 832 if (!urb)
833 return -ENOMEM;
834
835 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
836 BTUSB_MAX_ISOC_FRAMES;
837
2eda66f4 838 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 839 if (!buf) {
840 usb_free_urb(urb);
841 return -ENOMEM;
842 }
843
844 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
845
fa0fb93f 846 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 847 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 848
89e7533d 849 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 850
851 __fill_isoc_descriptor(urb, size,
89e7533d 852 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 853
854 usb_anchor_urb(urb, &data->isoc_anchor);
855
2eda66f4 856 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 857 if (err < 0) {
d4b8d1c9
PB		 858 if (err != -EPERM && err != -ENODEV)
859 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 860 hdev->name, urb, -err);
9bfa35fe 861 usb_unanchor_urb(urb);
9bfa35fe
MH		 862 }
863
864 usb_free_urb(urb);
865
866 return err;
867}
868
5e23b923 869static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 870{
871 struct sk_buff *skb = urb->context;
89e7533d 872 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 873 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 874
89e7533d
MH		 875 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
876 urb->actual_length);
7bee549e
ON		 877
878 if (!test_bit(HCI_RUNNING, &hdev->flags))
879 goto done;
880
881 if (!urb->status)
882 hdev->stat.byte_tx += urb->transfer_buffer_length;
883 else
884 hdev->stat.err_tx++;
885
886done:
887 spin_lock(&data->txlock);
888 data->tx_in_flight--;
889 spin_unlock(&data->txlock);
890
891 kfree(urb->setup_packet);
892
893 kfree_skb(skb);
894}
895
896static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 897{
898 struct sk_buff *skb = urb->context;
89e7533d 899 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 900
89e7533d
MH		 901 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
902 urb->actual_length);
5e23b923
MH		 903
904 if (!test_bit(HCI_RUNNING, &hdev->flags))
905 goto done;
906
907 if (!urb->status)
908 hdev->stat.byte_tx += urb->transfer_buffer_length;
909 else
910 hdev->stat.err_tx++;
911
912done:
913 kfree(urb->setup_packet);
914
915 kfree_skb(skb);
916}
917
918static int btusb_open(struct hci_dev *hdev)
919{
155961e8 920 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 921 int err;
922
923 BT_DBG("%s", hdev->name);
924
ace31982
KBYT		 925 /* Patching USB firmware files prior to starting any URBs of HCI path
926 * It is more safe to use USB bulk channel for downloading USB patch
927 */
928 if (data->setup_on_usb) {
929 err = data->setup_on_usb(hdev);
eb50042f 930 if (err < 0)
ace31982
KBYT		 931 return err;
932 }
933
7bee549e
ON		 934 err = usb_autopm_get_interface(data->intf);
935 if (err < 0)
936 return err;
937
938 data->intf->needs_remote_wakeup = 1;
939
5e23b923 940 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 941 goto done;
5e23b923
MH		 942
943 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 944 goto done;
5e23b923 945
2eda66f4 946 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 947 if (err < 0)
948 goto failed;
949
950 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 951 if (err < 0) {
43c2e57f
MH		 952 usb_kill_anchored_urbs(&data->intr_anchor);
953 goto failed;
5e23b923
MH		 954 }
955
43c2e57f
MH		 956 set_bit(BTUSB_BULK_RUNNING, &data->flags);
957 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
958
7bee549e
ON		 959done:
960 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 961 return 0;
962
963failed:
964 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
965 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 966 usb_autopm_put_interface(data->intf);
5e23b923
MH		 967 return err;
968}
969
7bee549e
ON		 970static void btusb_stop_traffic(struct btusb_data *data)
971{
972 usb_kill_anchored_urbs(&data->intr_anchor);
973 usb_kill_anchored_urbs(&data->bulk_anchor);
974 usb_kill_anchored_urbs(&data->isoc_anchor);
975}
976
5e23b923
MH		 977static int btusb_close(struct hci_dev *hdev)
978{
155961e8 979 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 980 int err;
5e23b923
MH		 981
982 BT_DBG("%s", hdev->name);
983
984 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
985 return 0;
986
e8c3c3d2 987 cancel_work_sync(&data->work);
404291ac 988 cancel_work_sync(&data->waker);
e8c3c3d2 989
9bfa35fe 990 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 991 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 992 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 993
994 btusb_stop_traffic(data);
803b5836
MH		 995 btusb_free_frags(data);
996
7bee549e
ON		 997 err = usb_autopm_get_interface(data->intf);
998 if (err < 0)
7b8e2c1d 999 goto failed;
7bee549e
ON		 1000
1001 data->intf->needs_remote_wakeup = 0;
1002 usb_autopm_put_interface(data->intf);
5e23b923 1003
7b8e2c1d
ON		 1004failed:
1005 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1006 return 0;
1007}
1008
1009static int btusb_flush(struct hci_dev *hdev)
1010{
155961e8 1011 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1012
1013 BT_DBG("%s", hdev->name);
1014
1015 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1016 btusb_free_frags(data);
5e23b923
MH		 1017
1018 return 0;
1019}
1020
047b2ec8 1021static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1022{
155961e8 1023 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1024 struct usb_ctrlrequest *dr;
1025 struct urb *urb;
1026 unsigned int pipe;
5e23b923 1027
047b2ec8
MH		 1028 urb = usb_alloc_urb(0, GFP_KERNEL);
1029 if (!urb)
1030 return ERR_PTR(-ENOMEM);
5e23b923 1031
047b2ec8
MH		 1032 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1033 if (!dr) {
1034 usb_free_urb(urb);
1035 return ERR_PTR(-ENOMEM);
1036 }
5e23b923 1037
047b2ec8 1038 dr->bRequestType = data->cmdreq_type;
893ba544 1039 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1040 dr->wIndex = 0;
1041 dr->wValue = 0;
1042 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1043
047b2ec8 1044 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1045
89e7533d 1046 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1047 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1048
89e7533d 1049 skb->dev = (void *)hdev;
5e23b923 1050
047b2ec8
MH		 1051 return urb;
1052}
5e23b923 1053
047b2ec8
MH		 1054static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1055{
1056 struct btusb_data *data = hci_get_drvdata(hdev);
1057 struct urb *urb;
1058 unsigned int pipe;
5e23b923 1059
047b2ec8
MH		 1060 if (!data->bulk_tx_ep)
1061 return ERR_PTR(-ENODEV);
9bfa35fe 1062
047b2ec8
MH		 1063 urb = usb_alloc_urb(0, GFP_KERNEL);
1064 if (!urb)
1065 return ERR_PTR(-ENOMEM);
5e23b923 1066
047b2ec8 1067 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1068
047b2ec8
MH		 1069 usb_fill_bulk_urb(urb, data->udev, pipe,
1070 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1071
89e7533d 1072 skb->dev = (void *)hdev;
5e23b923 1073
047b2ec8
MH		 1074 return urb;
1075}
9bfa35fe 1076
047b2ec8
MH		 1077static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1078{
1079 struct btusb_data *data = hci_get_drvdata(hdev);
1080 struct urb *urb;
1081 unsigned int pipe;
9bfa35fe 1082
047b2ec8
MH		 1083 if (!data->isoc_tx_ep)
1084 return ERR_PTR(-ENODEV);
9bfa35fe 1085
047b2ec8
MH		 1086 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1087 if (!urb)
1088 return ERR_PTR(-ENOMEM);
9bfa35fe 1089
047b2ec8 1090 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1091
047b2ec8
MH		 1092 usb_fill_int_urb(urb, data->udev, pipe,
1093 skb->data, skb->len, btusb_isoc_tx_complete,
1094 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1095
047b2ec8 1096 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1097
047b2ec8
MH		 1098 __fill_isoc_descriptor(urb, skb->len,
1099 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1100
89e7533d 1101 skb->dev = (void *)hdev;
047b2ec8
MH		 1102
1103 return urb;
1104}
1105
1106static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1107{
1108 struct btusb_data *data = hci_get_drvdata(hdev);
1109 int err;
7bee549e 1110
5e23b923
MH		 1111 usb_anchor_urb(urb, &data->tx_anchor);
1112
e9753eff 1113 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1114 if (err < 0) {
5a9b80e2
PB		 1115 if (err != -EPERM && err != -ENODEV)
1116 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1117 hdev->name, urb, -err);
5e23b923
MH		 1118 kfree(urb->setup_packet);
1119 usb_unanchor_urb(urb);
7bee549e
ON		 1120 } else {
1121 usb_mark_last_busy(data->udev);
5e23b923
MH		 1122 }
1123
54a8a79c 1124 usb_free_urb(urb);
5e23b923
MH		 1125 return err;
1126}
1127
047b2ec8
MH		 1128static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1129{
1130 struct btusb_data *data = hci_get_drvdata(hdev);
1131 unsigned long flags;
1132 bool suspending;
1133
1134 spin_lock_irqsave(&data->txlock, flags);
1135 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1136 if (!suspending)
1137 data->tx_in_flight++;
1138 spin_unlock_irqrestore(&data->txlock, flags);
1139
1140 if (!suspending)
1141 return submit_tx_urb(hdev, urb);
1142
1143 usb_anchor_urb(urb, &data->deferred);
1144 schedule_work(&data->waker);
1145
1146 usb_free_urb(urb);
1147 return 0;
1148}
1149
1150static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1151{
1152 struct urb *urb;
1153
1154 BT_DBG("%s", hdev->name);
1155
1156 if (!test_bit(HCI_RUNNING, &hdev->flags))
1157 return -EBUSY;
1158
1159 switch (bt_cb(skb)->pkt_type) {
1160 case HCI_COMMAND_PKT:
1161 urb = alloc_ctrl_urb(hdev, skb);
1162 if (IS_ERR(urb))
1163 return PTR_ERR(urb);
1164
1165 hdev->stat.cmd_tx++;
1166 return submit_or_queue_tx_urb(hdev, urb);
1167
1168 case HCI_ACLDATA_PKT:
1169 urb = alloc_bulk_urb(hdev, skb);
1170 if (IS_ERR(urb))
1171 return PTR_ERR(urb);
1172
1173 hdev->stat.acl_tx++;
1174 return submit_or_queue_tx_urb(hdev, urb);
1175
1176 case HCI_SCODATA_PKT:
1177 if (hci_conn_num(hdev, SCO_LINK) < 1)
1178 return -ENODEV;
1179
1180 urb = alloc_isoc_urb(hdev, skb);
1181 if (IS_ERR(urb))
1182 return PTR_ERR(urb);
1183
1184 hdev->stat.sco_tx++;
1185 return submit_tx_urb(hdev, urb);
1186 }
1187
1188 return -EILSEQ;
1189}
1190
5e23b923
MH		 1191static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1192{
155961e8 1193 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1194
1195 BT_DBG("%s evt %d", hdev->name, evt);
1196
014f7bc7
MH		 1197 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1198 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1199 schedule_work(&data->work);
a780efa8 1200 }
5e23b923
MH		 1201}
1202
42b16b3f 1203static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1204{
155961e8 1205 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1206 struct usb_interface *intf = data->isoc;
1207 struct usb_endpoint_descriptor *ep_desc;
1208 int i, err;
1209
1210 if (!data->isoc)
1211 return -ENODEV;
1212
1213 err = usb_set_interface(data->udev, 1, altsetting);
1214 if (err < 0) {
1215 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1216 return err;
1217 }
1218
1219 data->isoc_altsetting = altsetting;
1220
1221 data->isoc_tx_ep = NULL;
1222 data->isoc_rx_ep = NULL;
1223
1224 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1225 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1226
1227 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1228 data->isoc_tx_ep = ep_desc;
1229 continue;
1230 }
1231
1232 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1233 data->isoc_rx_ep = ep_desc;
1234 continue;
1235 }
1236 }
1237
1238 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1239 BT_ERR("%s invalid SCO descriptors", hdev->name);
1240 return -ENODEV;
1241 }
1242
1243 return 0;
1244}
1245
5e23b923
MH		 1246static void btusb_work(struct work_struct *work)
1247{
1248 struct btusb_data *data = container_of(work, struct btusb_data, work);
1249 struct hci_dev *hdev = data->hdev;
f4001d28 1250 int new_alts;
7bee549e 1251 int err;
5e23b923 1252
014f7bc7 1253 if (data->sco_num > 0) {
08b8b6c4 1254 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1255 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1256 if (err < 0) {
1257 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1258 usb_kill_anchored_urbs(&data->isoc_anchor);
1259 return;
1260 }
1261
08b8b6c4 1262 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1263 }
f4001d28
MA		 1264
1265 if (hdev->voice_setting & 0x0020) {
1266 static const int alts[3] = { 2, 4, 5 };
89e7533d 1267
014f7bc7 1268 new_alts = alts[data->sco_num - 1];
f4001d28 1269 } else {
014f7bc7 1270 new_alts = data->sco_num;
f4001d28
MA		 1271 }
1272
1273 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1274 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1275 usb_kill_anchored_urbs(&data->isoc_anchor);
1276
f4001d28 1277 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1278 return;
1279 }
1280
1281 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1282 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1283 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1284 else
2eda66f4 1285 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1286 }
1287 } else {
1288 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1289 usb_kill_anchored_urbs(&data->isoc_anchor);
1290
1291 __set_isoc_interface(hdev, 0);
08b8b6c4 1292 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1293 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1294 }
1295}
1296
7bee549e
ON		 1297static void btusb_waker(struct work_struct *work)
1298{
1299 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1300 int err;
1301
1302 err = usb_autopm_get_interface(data->intf);
1303 if (err < 0)
1304 return;
1305
1306 usb_autopm_put_interface(data->intf);
1307}
1308
9f8f962c
MH		 1309static int btusb_setup_bcm92035(struct hci_dev *hdev)
1310{
1311 struct sk_buff *skb;
1312 u8 val = 0x00;
1313
1314 BT_DBG("%s", hdev->name);
1315
1316 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1317 if (IS_ERR(skb))
1318 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1319 else
1320 kfree_skb(skb);
1321
1322 return 0;
1323}
1324
81cac64b
MH		 1325static int btusb_setup_csr(struct hci_dev *hdev)
1326{
1327 struct hci_rp_read_local_version *rp;
1328 struct sk_buff *skb;
81cac64b
MH		 1329
1330 BT_DBG("%s", hdev->name);
1331
7cd84d72
MH		 1332 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1333 HCI_INIT_TIMEOUT);
1334 if (IS_ERR(skb)) {
1335 int err = PTR_ERR(skb);
1336 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1337 return err;
1338 }
1339
1340 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1341 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1342 kfree_skb(skb);
1343 return -EIO;
1344 }
81cac64b 1345
89e7533d 1346 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1347
9641d343
MH		 1348 if (le16_to_cpu(rp->manufacturer) != 10) {
1349 /* Clear the reset quirk since this is not an actual
1350 * early Bluetooth 1.1 device from CSR.
1351 */
1352 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1353
9641d343
MH		 1354 /* These fake CSR controllers have all a broken
1355 * stored link key handling and so just disable it.
1356 */
1357 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1358 }
81cac64b
MH		 1359
1360 kfree_skb(skb);
1361
9641d343 1362 return 0;
81cac64b
MH		 1363}
1364
dffd30ee 1365static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1366 struct intel_version *ver)
dffd30ee
THJA		 1367{
1368 const struct firmware *fw;
1369 char fwname[64];
1370 int ret;
1371
1372 snprintf(fwname, sizeof(fwname),
1373 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1374 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1375 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1376 ver->fw_build_ww, ver->fw_build_yy);
1377
1378 ret = request_firmware(&fw, fwname, &hdev->dev);
1379 if (ret < 0) {
1380 if (ret == -EINVAL) {
1381 BT_ERR("%s Intel firmware file request failed (%d)",
1382 hdev->name, ret);
1383 return NULL;
1384 }
1385
1386 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1387 hdev->name, fwname, ret);
1388
1389 /* If the correct firmware patch file is not found, use the
1390 * default firmware patch file instead
1391 */
1392 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1393 ver->hw_platform, ver->hw_variant);
1394 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1395 BT_ERR("%s failed to open default Intel fw file: %s",
1396 hdev->name, fwname);
1397 return NULL;
1398 }
1399 }
1400
1401 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1402
1403 return fw;
1404}
1405
1406static int btusb_setup_intel_patching(struct hci_dev *hdev,
1407 const struct firmware *fw,
1408 const u8 **fw_ptr, int *disable_patch)
1409{
1410 struct sk_buff *skb;
1411 struct hci_command_hdr *cmd;
1412 const u8 *cmd_param;
1413 struct hci_event_hdr *evt = NULL;
1414 const u8 *evt_param = NULL;
1415 int remain = fw->size - (*fw_ptr - fw->data);
1416
1417 /* The first byte indicates the types of the patch command or event.
1418 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1419 * in the current firmware buffer doesn't start with 0x01 or
1420 * the size of remain buffer is smaller than HCI command header,
1421 * the firmware file is corrupted and it should stop the patching
1422 * process.
1423 */
1424 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1425 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1426 return -EINVAL;
1427 }
1428 (*fw_ptr)++;
1429 remain--;
1430
1431 cmd = (struct hci_command_hdr *)(*fw_ptr);
1432 *fw_ptr += sizeof(*cmd);
1433 remain -= sizeof(*cmd);
1434
1435 /* Ensure that the remain firmware data is long enough than the length
1436 * of command parameter. If not, the firmware file is corrupted.
1437 */
1438 if (remain < cmd->plen) {
1439 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1440 return -EFAULT;
1441 }
1442
1443 /* If there is a command that loads a patch in the firmware
1444 * file, then enable the patch upon success, otherwise just
1445 * disable the manufacturer mode, for example patch activation
1446 * is not required when the default firmware patch file is used
1447 * because there are no patch data to load.
1448 */
1449 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1450 *disable_patch = 0;
1451
1452 cmd_param = *fw_ptr;
1453 *fw_ptr += cmd->plen;
1454 remain -= cmd->plen;
1455
1456 /* This reads the expected events when the above command is sent to the
1457 * device. Some vendor commands expects more than one events, for
1458 * example command status event followed by vendor specific event.
1459 * For this case, it only keeps the last expected event. so the command
1460 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1461 * last expected event.
1462 */
1463 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1464 (*fw_ptr)++;
1465 remain--;
1466
1467 evt = (struct hci_event_hdr *)(*fw_ptr);
1468 *fw_ptr += sizeof(*evt);
1469 remain -= sizeof(*evt);
1470
1471 if (remain < evt->plen) {
1472 BT_ERR("%s Intel fw corrupted: invalid evt len",
1473 hdev->name);
1474 return -EFAULT;
1475 }
1476
1477 evt_param = *fw_ptr;
1478 *fw_ptr += evt->plen;
1479 remain -= evt->plen;
1480 }
1481
1482 /* Every HCI commands in the firmware file has its correspond event.
1483 * If event is not found or remain is smaller than zero, the firmware
1484 * file is corrupted.
1485 */
1486 if (!evt || !evt_param || remain < 0) {
1487 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1488 return -EFAULT;
1489 }
1490
1491 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1492 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1493 if (IS_ERR(skb)) {
1494 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1495 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1496 return PTR_ERR(skb);
dffd30ee
THJA		 1497 }
1498
1499 /* It ensures that the returned event matches the event data read from
1500 * the firmware file. At fist, it checks the length and then
1501 * the contents of the event.
1502 */
1503 if (skb->len != evt->plen) {
1504 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1505 le16_to_cpu(cmd->opcode));
1506 kfree_skb(skb);
1507 return -EFAULT;
1508 }
1509
1510 if (memcmp(skb->data, evt_param, evt->plen)) {
1511 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1512 hdev->name, le16_to_cpu(cmd->opcode));
1513 kfree_skb(skb);
1514 return -EFAULT;
1515 }
1516 kfree_skb(skb);
1517
1518 return 0;
1519}
1520
1521static int btusb_setup_intel(struct hci_dev *hdev)
1522{
1523 struct sk_buff *skb;
1524 const struct firmware *fw;
1525 const u8 *fw_ptr;
1526 int disable_patch;
1527 struct intel_version *ver;
1528
1529 const u8 mfg_enable[] = { 0x01, 0x00 };
1530 const u8 mfg_disable[] = { 0x00, 0x00 };
1531 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1532 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1533
1534 BT_DBG("%s", hdev->name);
1535
1536 /* The controller has a bug with the first HCI command sent to it
1537 * returning number of completed commands as zero. This would stall the
1538 * command processing in the Bluetooth core.
1539 *
1540 * As a workaround, send HCI Reset command first which will reset the
1541 * number of completed commands and allow normal command processing
1542 * from now on.
1543 */
1544 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1545 if (IS_ERR(skb)) {
1546 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1547 hdev->name, PTR_ERR(skb));
d9c78e97 1548 return PTR_ERR(skb);
dffd30ee
THJA		 1549 }
1550 kfree_skb(skb);
1551
1552 /* Read Intel specific controller version first to allow selection of
1553 * which firmware file to load.
1554 *
1555 * The returned information are hardware variant and revision plus
1556 * firmware variant, revision and build number.
1557 */
1558 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1559 if (IS_ERR(skb)) {
1560 BT_ERR("%s reading Intel fw version command failed (%ld)",
1561 hdev->name, PTR_ERR(skb));
d9c78e97 1562 return PTR_ERR(skb);
dffd30ee
THJA		 1563 }
1564
1565 if (skb->len != sizeof(*ver)) {
1566 BT_ERR("%s Intel version event length mismatch", hdev->name);
1567 kfree_skb(skb);
1568 return -EIO;
1569 }
1570
1571 ver = (struct intel_version *)skb->data;
dffd30ee
THJA		 1572
1573 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1574 hdev->name, ver->hw_platform, ver->hw_variant,
1575 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1576 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1577 ver->fw_patch_num);
1578
1579 /* fw_patch_num indicates the version of patch the device currently
1580 * have. If there is no patch data in the device, it is always 0x00.
1581 * So, if it is other than 0x00, no need to patch the deivce again.
1582 */
1583 if (ver->fw_patch_num) {
1584 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1585 hdev->name, ver->fw_patch_num);
1586 kfree_skb(skb);
4185a0f5 1587 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1588 return 0;
1589 }
1590
1591 /* Opens the firmware patch file based on the firmware version read
1592 * from the controller. If it fails to open the matching firmware
1593 * patch file, it tries to open the default firmware patch file.
1594 * If no patch file is found, allow the device to operate without
1595 * a patch.
1596 */
1597 fw = btusb_setup_intel_get_fw(hdev, ver);
1598 if (!fw) {
1599 kfree_skb(skb);
4185a0f5 1600 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1601 return 0;
1602 }
1603 fw_ptr = fw->data;
1604
ecffc804
MH		 1605 kfree_skb(skb);
1606
dffd30ee
THJA		 1607 /* This Intel specific command enables the manufacturer mode of the
1608 * controller.
1609 *
1610 * Only while this mode is enabled, the driver can download the
1611 * firmware patch data and configuration parameters.
1612 */
1613 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1614 if (IS_ERR(skb)) {
1615 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1616 hdev->name, PTR_ERR(skb));
1617 release_firmware(fw);
d9c78e97 1618 return PTR_ERR(skb);
dffd30ee
THJA		 1619 }
1620
dffd30ee
THJA		 1621 kfree_skb(skb);
1622
1623 disable_patch = 1;
1624
1625 /* The firmware data file consists of list of Intel specific HCI
1626 * commands and its expected events. The first byte indicates the
1627 * type of the message, either HCI command or HCI event.
1628 *
1629 * It reads the command and its expected event from the firmware file,
1630 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1631 * the returned event is compared with the event read from the firmware
1632 * file and it will continue until all the messages are downloaded to
1633 * the controller.
1634 *
1635 * Once the firmware patching is completed successfully,
1636 * the manufacturer mode is disabled with reset and activating the
1637 * downloaded patch.
1638 *
1639 * If the firmware patching fails, the manufacturer mode is
1640 * disabled with reset and deactivating the patch.
1641 *
1642 * If the default patch file is used, no reset is done when disabling
1643 * the manufacturer.
1644 */
1645 while (fw->size > fw_ptr - fw->data) {
1646 int ret;
1647
1648 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1649 &disable_patch);
1650 if (ret < 0)
1651 goto exit_mfg_deactivate;
1652 }
1653
1654 release_firmware(fw);
1655
1656 if (disable_patch)
1657 goto exit_mfg_disable;
1658
1659 /* Patching completed successfully and disable the manufacturer mode
1660 * with reset and activate the downloaded firmware patches.
1661 */
1662 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1663 mfg_reset_activate, HCI_INIT_TIMEOUT);
1664 if (IS_ERR(skb)) {
1665 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1666 hdev->name, PTR_ERR(skb));
d9c78e97 1667 return PTR_ERR(skb);
dffd30ee
THJA		 1668 }
1669 kfree_skb(skb);
1670
1671 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1672 hdev->name);
1673
4185a0f5 1674 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1675 return 0;
1676
1677exit_mfg_disable:
1678 /* Disable the manufacturer mode without reset */
1679 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1680 HCI_INIT_TIMEOUT);
1681 if (IS_ERR(skb)) {
1682 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1683 hdev->name, PTR_ERR(skb));
d9c78e97 1684 return PTR_ERR(skb);
dffd30ee
THJA		 1685 }
1686 kfree_skb(skb);
1687
1688 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1689
4185a0f5 1690 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1691 return 0;
1692
1693exit_mfg_deactivate:
1694 release_firmware(fw);
1695
1696 /* Patching failed. Disable the manufacturer mode with reset and
1697 * deactivate the downloaded firmware patches.
1698 */
1699 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1700 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1701 if (IS_ERR(skb)) {
1702 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1703 hdev->name, PTR_ERR(skb));
d9c78e97 1704 return PTR_ERR(skb);
dffd30ee
THJA		 1705 }
1706 kfree_skb(skb);
1707
1708 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1709 hdev->name);
1710
4185a0f5 1711 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1712 return 0;
1713}
1714
cda0dd78
MH		 1715static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1716{
1717 struct sk_buff *skb;
1718 struct hci_event_hdr *hdr;
1719 struct hci_ev_cmd_complete *evt;
1720
1721 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1722 if (!skb)
1723 return -ENOMEM;
1724
1725 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1726 hdr->evt = HCI_EV_CMD_COMPLETE;
1727 hdr->plen = sizeof(*evt) + 1;
1728
1729 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1730 evt->ncmd = 0x01;
1731 evt->opcode = cpu_to_le16(opcode);
1732
1733 *skb_put(skb, 1) = 0x00;
1734
1735 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1736
1737 return hci_recv_frame(hdev, skb);
1738}
1739
1740static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1741 int count)
1742{
1743 /* When the device is in bootloader mode, then it can send
1744 * events via the bulk endpoint. These events are treated the
1745 * same way as the ones received from the interrupt endpoint.
1746 */
1747 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1748 return btusb_recv_intr(data, buffer, count);
1749
1750 return btusb_recv_bulk(data, buffer, count);
1751}
1752
ccd6da2a
MH		 1753static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1754 unsigned int len)
1755{
1756 const struct intel_bootup *evt = ptr;
1757
1758 if (len != sizeof(*evt))
1759 return;
1760
1761 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1762 smp_mb__after_atomic();
1763 wake_up_bit(&data->flags, BTUSB_BOOTING);
1764 }
1765}
1766
1767static void btusb_intel_secure_send_result(struct btusb_data *data,
1768 const void *ptr, unsigned int len)
1769{
1770 const struct intel_secure_send_result *evt = ptr;
1771
1772 if (len != sizeof(*evt))
1773 return;
1774
1775 if (evt->result)
1776 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1777
1778 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1779 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1780 smp_mb__after_atomic();
1781 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1782 }
1783}
1784
cda0dd78
MH		 1785static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1786{
1787 struct btusb_data *data = hci_get_drvdata(hdev);
1788
1789 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1790 struct hci_event_hdr *hdr = (void *)skb->data;
1791
ccd6da2a
MH		 1792 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1793 hdr->plen > 0) {
1794 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1795 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1796
1797 switch (skb->data[2]) {
1798 case 0x02:
1799 /* When switching to the operational firmware
1800 * the device sends a vendor specific event
1801 * indicating that the bootup completed.
1802 */
1803 btusb_intel_bootup(data, ptr, len);
1804 break;
1805 case 0x06:
1806 /* When the firmware loading completes the
1807 * device sends out a vendor specific event
1808 * indicating the result of the firmware
1809 * loading.
1810 */
1811 btusb_intel_secure_send_result(data, ptr, len);
1812 break;
fad70972 1813 }
cda0dd78
MH		 1814 }
1815 }
1816
1817 return hci_recv_frame(hdev, skb);
1818}
1819
1820static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1821{
1822 struct btusb_data *data = hci_get_drvdata(hdev);
1823 struct urb *urb;
1824
1825 BT_DBG("%s", hdev->name);
1826
1827 if (!test_bit(HCI_RUNNING, &hdev->flags))
1828 return -EBUSY;
1829
1830 switch (bt_cb(skb)->pkt_type) {
1831 case HCI_COMMAND_PKT:
1832 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1833 struct hci_command_hdr *cmd = (void *)skb->data;
1834 __u16 opcode = le16_to_cpu(cmd->opcode);
1835
1836 /* When in bootloader mode and the command 0xfc09
1837 * is received, it needs to be send down the
1838 * bulk endpoint. So allocate a bulk URB instead.
1839 */
1840 if (opcode == 0xfc09)
1841 urb = alloc_bulk_urb(hdev, skb);
1842 else
1843 urb = alloc_ctrl_urb(hdev, skb);
1844
1845 /* When the 0xfc01 command is issued to boot into
1846 * the operational firmware, it will actually not
1847 * send a command complete event. To keep the flow
1848 * control working inject that event here.
1849 */
1850 if (opcode == 0xfc01)
1851 inject_cmd_complete(hdev, opcode);
1852 } else {
1853 urb = alloc_ctrl_urb(hdev, skb);
1854 }
1855 if (IS_ERR(urb))
1856 return PTR_ERR(urb);
1857
1858 hdev->stat.cmd_tx++;
1859 return submit_or_queue_tx_urb(hdev, urb);
1860
1861 case HCI_ACLDATA_PKT:
1862 urb = alloc_bulk_urb(hdev, skb);
1863 if (IS_ERR(urb))
1864 return PTR_ERR(urb);
1865
1866 hdev->stat.acl_tx++;
1867 return submit_or_queue_tx_urb(hdev, urb);
1868
1869 case HCI_SCODATA_PKT:
1870 if (hci_conn_num(hdev, SCO_LINK) < 1)
1871 return -ENODEV;
1872
1873 urb = alloc_isoc_urb(hdev, skb);
1874 if (IS_ERR(urb))
1875 return PTR_ERR(urb);
1876
1877 hdev->stat.sco_tx++;
1878 return submit_tx_urb(hdev, urb);
1879 }
1880
1881 return -EILSEQ;
1882}
1883
cda0dd78
MH		 1884static int btusb_setup_intel_new(struct hci_dev *hdev)
1885{
1886 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1887 0x00, 0x08, 0x04, 0x00 };
1888 struct btusb_data *data = hci_get_drvdata(hdev);
1889 struct sk_buff *skb;
1890 struct intel_version *ver;
1891 struct intel_boot_params *params;
1892 const struct firmware *fw;
1893 const u8 *fw_ptr;
e66890a9 1894 u32 frag_len;
cda0dd78
MH		 1895 char fwname[64];
1896 ktime_t calltime, delta, rettime;
1897 unsigned long long duration;
1898 int err;
1899
1900 BT_DBG("%s", hdev->name);
1901
1902 calltime = ktime_get();
1903
1904 /* Read the Intel version information to determine if the device
1905 * is in bootloader mode or if it already has operational firmware
1906 * loaded.
1907 */
1908 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1909 if (IS_ERR(skb)) {
1910 BT_ERR("%s: Reading Intel version information failed (%ld)",
1911 hdev->name, PTR_ERR(skb));
1912 return PTR_ERR(skb);
1913 }
1914
1915 if (skb->len != sizeof(*ver)) {
1916 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1917 kfree_skb(skb);
1918 return -EILSEQ;
1919 }
1920
1921 ver = (struct intel_version *)skb->data;
cda0dd78
MH		 1922
1923 /* The hardware platform number has a fixed value of 0x37 and
1924 * for now only accept this single value.
1925 */
1926 if (ver->hw_platform != 0x37) {
1927 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1928 hdev->name, ver->hw_platform);
1929 kfree_skb(skb);
1930 return -EINVAL;
1931 }
1932
1933 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1934 * supported by this firmware loading method. This check has been
1935 * put in place to ensure correct forward compatibility options
1936 * when newer hardware variants come along.
1937 */
1938 if (ver->hw_variant != 0x0b) {
1939 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1940 hdev->name, ver->hw_variant);
1941 kfree_skb(skb);
1942 return -EINVAL;
1943 }
1944
7feb99e1 1945 btintel_version_info(hdev, ver);
cda0dd78
MH		 1946
1947 /* The firmware variant determines if the device is in bootloader
1948 * mode or is running operational firmware. The value 0x06 identifies
1949 * the bootloader and the value 0x23 identifies the operational
1950 * firmware.
1951 *
1952 * When the operational firmware is already present, then only
1953 * the check for valid Bluetooth device address is needed. This
1954 * determines if the device will be added as configured or
1955 * unconfigured controller.
1956 *
1957 * It is not possible to use the Secure Boot Parameters in this
1958 * case since that command is only available in bootloader mode.
1959 */
1960 if (ver->fw_variant == 0x23) {
1961 kfree_skb(skb);
1962 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 1963 btintel_check_bdaddr(hdev);
cda0dd78
MH		 1964 return 0;
1965 }
1966
1967 /* If the device is not in bootloader mode, then the only possible
1968 * choice is to return an error and abort the device initialization.
1969 */
1970 if (ver->fw_variant != 0x06) {
1971 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
1972 hdev->name, ver->fw_variant);
1973 kfree_skb(skb);
1974 return -ENODEV;
1975 }
1976
1977 kfree_skb(skb);
1978
1979 /* Read the secure boot parameters to identify the operating
1980 * details of the bootloader.
1981 */
1982 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
1983 if (IS_ERR(skb)) {
1984 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
1985 hdev->name, PTR_ERR(skb));
1986 return PTR_ERR(skb);
1987 }
1988
1989 if (skb->len != sizeof(*params)) {
1990 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
1991 kfree_skb(skb);
1992 return -EILSEQ;
1993 }
1994
1995 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 1996
1997 BT_INFO("%s: Device revision is %u", hdev->name,
1998 le16_to_cpu(params->dev_revid));
1999
2000 BT_INFO("%s: Secure boot is %s", hdev->name,
2001 params->secure_boot ? "enabled" : "disabled");
2002
2003 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2004 params->min_fw_build_nn, params->min_fw_build_cw,
2005 2000 + params->min_fw_build_yy);
2006
2007 /* It is required that every single firmware fragment is acknowledged
2008 * with a command complete event. If the boot parameters indicate
2009 * that this bootloader does not send them, then abort the setup.
2010 */
2011 if (params->limited_cce != 0x00) {
2012 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2013 hdev->name, params->limited_cce);
2014 kfree_skb(skb);
2015 return -EINVAL;
2016 }
2017
2018 /* If the OTP has no valid Bluetooth device address, then there will
2019 * also be no valid address for the operational firmware.
2020 */
2021 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2022 BT_INFO("%s: No device address configured", hdev->name);
2023 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2024 }
2025
2026 /* With this Intel bootloader only the hardware variant and device
2027 * revision information are used to select the right firmware.
2028 *
2029 * Currently this bootloader support is limited to hardware variant
2030 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2031 */
2032 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2033 le16_to_cpu(params->dev_revid));
2034
2035 err = request_firmware(&fw, fwname, &hdev->dev);
2036 if (err < 0) {
2037 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2038 hdev->name, err);
2039 kfree_skb(skb);
2040 return err;
2041 }
2042
2043 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2044
52cc9168
THJA		 2045 /* Save the DDC file name for later use to apply once the firmware
2046 * downloading is done.
2047 */
2048 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2049 le16_to_cpu(params->dev_revid));
2050
cda0dd78
MH		 2051 kfree_skb(skb);
2052
2053 if (fw->size < 644) {
2054 BT_ERR("%s: Invalid size of firmware file (%zu)",
2055 hdev->name, fw->size);
2056 err = -EBADF;
2057 goto done;
2058 }
2059
2060 set_bit(BTUSB_DOWNLOADING, &data->flags);
2061
2062 /* Start the firmware download transaction with the Init fragment
2063 * represented by the 128 bytes of CSS header.
2064 */
09df123d 2065 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2066 if (err < 0) {
2067 BT_ERR("%s: Failed to send firmware header (%d)",
2068 hdev->name, err);
2069 goto done;
2070 }
2071
2072 /* Send the 256 bytes of public key information from the firmware
2073 * as the PKey fragment.
2074 */
09df123d 2075 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2076 if (err < 0) {
2077 BT_ERR("%s: Failed to send firmware public key (%d)",
2078 hdev->name, err);
2079 goto done;
2080 }
2081
2082 /* Send the 256 bytes of signature information from the firmware
2083 * as the Sign fragment.
2084 */
09df123d 2085 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2086 if (err < 0) {
2087 BT_ERR("%s: Failed to send firmware signature (%d)",
2088 hdev->name, err);
2089 goto done;
2090 }
2091
2092 fw_ptr = fw->data + 644;
e66890a9 2093 frag_len = 0;
cda0dd78
MH		 2094
2095 while (fw_ptr - fw->data < fw->size) {
e66890a9 2096 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2097
e66890a9 2098 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2099
e66890a9
MH		 2100 /* The paramter length of the secure send command requires
2101 * a 4 byte alignment. It happens so that the firmware file
2102 * contains proper Intel_NOP commands to align the fragments
2103 * as needed.
2104 *
2105 * Send set of commands with 4 byte alignment from the
2106 * firmware data buffer as a single Data fragement.
cda0dd78 2107 */
e66890a9 2108 if (!(frag_len % 4)) {
09df123d 2109 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2110 if (err < 0) {
2111 BT_ERR("%s: Failed to send firmware data (%d)",
2112 hdev->name, err);
2113 goto done;
2114 }
cda0dd78 2115
e66890a9
MH		 2116 fw_ptr += frag_len;
2117 frag_len = 0;
2118 }
cda0dd78
MH		 2119 }
2120
ce6bb929
MH		 2121 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2122
a087a98e
JH		 2123 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2124
cda0dd78
MH		 2125 /* Before switching the device into operational mode and with that
2126 * booting the loaded firmware, wait for the bootloader notification
2127 * that all fragments have been successfully received.
2128 *
a087a98e
JH		 2129 * When the event processing receives the notification, then the
2130 * BTUSB_DOWNLOADING flag will be cleared.
2131 *
2132 * The firmware loading should not take longer than 5 seconds
2133 * and thus just timeout if that happens and fail the setup
2134 * of this device.
cda0dd78 2135 */
129a7693
JH		 2136 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2137 TASK_INTERRUPTIBLE,
2138 msecs_to_jiffies(5000));
a087a98e
JH		 2139 if (err == 1) {
2140 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2141 err = -EINTR;
2142 goto done;
2143 }
cda0dd78 2144
a087a98e
JH		 2145 if (err) {
2146 BT_ERR("%s: Firmware loading timeout", hdev->name);
2147 err = -ETIMEDOUT;
2148 goto done;
cda0dd78
MH		 2149 }
2150
2151 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2152 BT_ERR("%s: Firmware loading failed", hdev->name);
2153 err = -ENOEXEC;
2154 goto done;
2155 }
2156
2157 rettime = ktime_get();
2158 delta = ktime_sub(rettime, calltime);
2159 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2160
2161 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2162
2163done:
2164 release_firmware(fw);
2165
2166 if (err < 0)
2167 return err;
2168
2169 calltime = ktime_get();
2170
2171 set_bit(BTUSB_BOOTING, &data->flags);
2172
2173 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2174 HCI_INIT_TIMEOUT);
2175 if (IS_ERR(skb))
2176 return PTR_ERR(skb);
2177
2178 kfree_skb(skb);
2179
2180 /* The bootloader will not indicate when the device is ready. This
2181 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2182 *
2183 * Booting into operational firmware should not take longer than
2184 * 1 second. However if that happens, then just fail the setup
2185 * since something went wrong.
cda0dd78 2186 */
fad70972 2187 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2188
129a7693
JH		 2189 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2190 TASK_INTERRUPTIBLE,
2191 msecs_to_jiffies(1000));
cda0dd78 2192
fad70972
JH		 2193 if (err == 1) {
2194 BT_ERR("%s: Device boot interrupted", hdev->name);
2195 return -EINTR;
2196 }
cda0dd78 2197
fad70972
JH		 2198 if (err) {
2199 BT_ERR("%s: Device boot timeout", hdev->name);
2200 return -ETIMEDOUT;
cda0dd78
MH		 2201 }
2202
2203 rettime = ktime_get();
2204 delta = ktime_sub(rettime, calltime);
2205 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2206
2207 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2208
2209 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2210
52cc9168
THJA		 2211 /* Once the device is running in operational mode, it needs to apply
2212 * the device configuration (DDC) parameters.
2213 *
2214 * The device can work without DDC parameters, so even if it fails
2215 * to load the file, no need to fail the setup.
2216 */
2217 err = request_firmware_direct(&fw, fwname, &hdev->dev);
2218 if (err < 0)
2219 return 0;
2220
2221 BT_INFO("%s: Found Intel DDC parameters: %s", hdev->name, fwname);
2222
2223 fw_ptr = fw->data;
2224
2225 /* DDC file contains one or more DDC structure which has
2226 * Length (1 byte), DDC ID (2 bytes), and DDC value (Length - 2).
2227 */
2228 while (fw->size > fw_ptr - fw->data) {
2229 u8 cmd_plen = fw_ptr[0] + sizeof(u8);
2230
2231 skb = __hci_cmd_sync(hdev, 0xfc8b, cmd_plen, fw_ptr,
2232 HCI_INIT_TIMEOUT);
2233 if (IS_ERR(skb)) {
2234 BT_ERR("%s: Failed to send Intel_Write_DDC (%ld)",
2235 hdev->name, PTR_ERR(skb));
2236 release_firmware(fw);
2237 return PTR_ERR(skb);
2238 }
2239
2240 fw_ptr += cmd_plen;
2241 kfree_skb(skb);
2242 }
2243
2244 release_firmware(fw);
2245
2246 BT_INFO("%s: Applying Intel DDC parameters completed", hdev->name);
2247
cda0dd78
MH		 2248 return 0;
2249}
2250
bfbd45e9
THJA		 2251static int btusb_shutdown_intel(struct hci_dev *hdev)
2252{
2253 struct sk_buff *skb;
2254 long ret;
2255
2256 /* Some platforms have an issue with BT LED when the interface is
2257 * down or BT radio is turned off, which takes 5 seconds to BT LED
2258 * goes off. This command turns off the BT LED immediately.
2259 */
2260 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2261 if (IS_ERR(skb)) {
2262 ret = PTR_ERR(skb);
2263 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2264 hdev->name, ret);
2265 return ret;
2266 }
2267 kfree_skb(skb);
2268
2269 return 0;
2270}
2271
ae8df494
AK		 2272static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2273 const bdaddr_t *bdaddr)
2274{
2275 struct sk_buff *skb;
2276 u8 buf[8];
2277 long ret;
2278
2279 buf[0] = 0xfe;
2280 buf[1] = sizeof(bdaddr_t);
2281 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2282
2283 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2284 if (IS_ERR(skb)) {
2285 ret = PTR_ERR(skb);
2286 BT_ERR("%s: changing Marvell device address failed (%ld)",
2287 hdev->name, ret);
2288 return ret;
2289 }
2290 kfree_skb(skb);
2291
2292 return 0;
2293}
2294
5859223e
TK		 2295static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2296 const bdaddr_t *bdaddr)
2297{
2298 struct sk_buff *skb;
2299 u8 buf[10];
2300 long ret;
2301
2302 buf[0] = 0x01;
2303 buf[1] = 0x01;
2304 buf[2] = 0x00;
2305 buf[3] = sizeof(bdaddr_t);
2306 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2307
2308 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2309 if (IS_ERR(skb)) {
2310 ret = PTR_ERR(skb);
2311 BT_ERR("%s: Change address command failed (%ld)",
2312 hdev->name, ret);
2313 return ret;
2314 }
2315 kfree_skb(skb);
2316
2317 return 0;
2318}
2319
3267c884
KBYT		 2320#define QCA_DFU_PACKET_LEN 4096
2321
2322#define QCA_GET_TARGET_VERSION 0x09
2323#define QCA_CHECK_STATUS 0x05
2324#define QCA_DFU_DOWNLOAD 0x01
2325
2326#define QCA_SYSCFG_UPDATED 0x40
2327#define QCA_PATCH_UPDATED 0x80
2328#define QCA_DFU_TIMEOUT 3000
2329
2330struct qca_version {
2331 __le32 rom_version;
2332 __le32 patch_version;
2333 __le32 ram_version;
2334 __le32 ref_clock;
2335 __u8 reserved[4];
2336} __packed;
2337
2338struct qca_rampatch_version {
2339 __le16 rom_version;
2340 __le16 patch_version;
2341} __packed;
2342
2343struct qca_device_info {
bf906b3d
KBYT		 2344 u32 rom_version;
2345 u8 rampatch_hdr; /* length of header in rampatch */
2346 u8 nvm_hdr; /* length of header in NVM */
2347 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2348};
2349
2350static const struct qca_device_info qca_devices_table[] = {
2351 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2352 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2353 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2354 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2355 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2356 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2357};
2358
2359static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2360 void *data, u16 size)
2361{
2362 struct btusb_data *btdata = hci_get_drvdata(hdev);
2363 struct usb_device *udev = btdata->udev;
2364 int pipe, err;
2365 u8 *buf;
2366
2367 buf = kmalloc(size, GFP_KERNEL);
2368 if (!buf)
2369 return -ENOMEM;
2370
2371 /* Found some of USB hosts have IOT issues with ours so that we should
2372 * not wait until HCI layer is ready.
2373 */
2374 pipe = usb_rcvctrlpipe(udev, 0);
2375 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2376 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2377 if (err < 0) {
2378 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2379 goto done;
2380 }
2381
2382 memcpy(data, buf, size);
2383
2384done:
2385 kfree(buf);
2386
2387 return err;
2388}
2389
2390static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2391 const struct firmware *firmware,
2392 size_t hdr_size)
2393{
2394 struct btusb_data *btdata = hci_get_drvdata(hdev);
2395 struct usb_device *udev = btdata->udev;
2396 size_t count, size, sent = 0;
2397 int pipe, len, err;
2398 u8 *buf;
2399
2400 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2401 if (!buf)
2402 return -ENOMEM;
2403
2404 count = firmware->size;
2405
2406 size = min_t(size_t, count, hdr_size);
2407 memcpy(buf, firmware->data, size);
2408
2409 /* USB patches should go down to controller through USB path
2410 * because binary format fits to go down through USB channel.
2411 * USB control path is for patching headers and USB bulk is for
2412 * patch body.
2413 */
2414 pipe = usb_sndctrlpipe(udev, 0);
2415 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2416 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2417 if (err < 0) {
2418 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2419 goto done;
2420 }
2421
2422 sent += size;
2423 count -= size;
2424
2425 while (count) {
2426 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2427
2428 memcpy(buf, firmware->data + sent, size);
2429
2430 pipe = usb_sndbulkpipe(udev, 0x02);
2431 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2432 QCA_DFU_TIMEOUT);
2433 if (err < 0) {
2434 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2435 hdev->name, sent, firmware->size, err);
2436 break;
2437 }
2438
2439 if (size != len) {
2440 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2441 err = -EILSEQ;
2442 break;
2443 }
2444
2445 sent += size;
2446 count -= size;
2447 }
2448
2449done:
2450 kfree(buf);
2451 return err;
2452}
2453
2454static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2455 struct qca_version *ver,
2456 const struct qca_device_info *info)
2457{
2458 struct qca_rampatch_version *rver;
2459 const struct firmware *fw;
bf906b3d
KBYT		 2460 u32 ver_rom, ver_patch;
2461 u16 rver_rom, rver_patch;
3267c884
KBYT		 2462 char fwname[64];
2463 int err;
2464
bf906b3d
KBYT		 2465 ver_rom = le32_to_cpu(ver->rom_version);
2466 ver_patch = le32_to_cpu(ver->patch_version);
2467
2468 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2469
2470 err = request_firmware(&fw, fwname, &hdev->dev);
2471 if (err) {
2472 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2473 hdev->name, fwname, err);
2474 return err;
2475 }
2476
2477 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2478
3267c884 2479 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2480 rver_rom = le16_to_cpu(rver->rom_version);
2481 rver_patch = le16_to_cpu(rver->patch_version);
2482
3267c884 2483 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2484 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2485 ver_patch);
3267c884 2486
bf906b3d 2487 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2488 BT_ERR("%s: rampatch file version did not match with firmware",
2489 hdev->name);
2490 err = -EINVAL;
2491 goto done;
2492 }
2493
2494 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2495
2496done:
2497 release_firmware(fw);
2498
2499 return err;
2500}
2501
2502static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2503 struct qca_version *ver,
2504 const struct qca_device_info *info)
2505{
2506 const struct firmware *fw;
2507 char fwname[64];
2508 int err;
2509
2510 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2511 le32_to_cpu(ver->rom_version));
2512
2513 err = request_firmware(&fw, fwname, &hdev->dev);
2514 if (err) {
2515 BT_ERR("%s: failed to request NVM file: %s (%d)",
2516 hdev->name, fwname, err);
2517 return err;
2518 }
2519
2520 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2521
2522 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2523
2524 release_firmware(fw);
2525
2526 return err;
2527}
2528
2529static int btusb_setup_qca(struct hci_dev *hdev)
2530{
2531 const struct qca_device_info *info = NULL;
2532 struct qca_version ver;
bf906b3d 2533 u32 ver_rom;
3267c884
KBYT		 2534 u8 status;
2535 int i, err;
2536
2537 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2538 sizeof(ver));
3267c884
KBYT		 2539 if (err < 0)
2540 return err;
2541
bf906b3d 2542 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2543 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2544 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2545 info = &qca_devices_table[i];
2546 }
2547 if (!info) {
2548 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2549 ver_rom);
3267c884
KBYT		 2550 return -ENODEV;
2551 }
2552
2553 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2554 sizeof(status));
2555 if (err < 0)
2556 return err;
2557
2558 if (!(status & QCA_PATCH_UPDATED)) {
2559 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2560 if (err < 0)
2561 return err;
2562 }
2563
2564 if (!(status & QCA_SYSCFG_UPDATED)) {
2565 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2566 if (err < 0)
2567 return err;
2568 }
2569
2570 return 0;
2571}
2572
5e23b923 2573static int btusb_probe(struct usb_interface *intf,
89e7533d 2574 const struct usb_device_id *id)
5e23b923
MH		 2575{
2576 struct usb_endpoint_descriptor *ep_desc;
2577 struct btusb_data *data;
2578 struct hci_dev *hdev;
2579 int i, err;
2580
2581 BT_DBG("intf %p id %p", intf, id);
2582
cfeb4145 2583 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 2584 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2585 return -ENODEV;
2586
2587 if (!id->driver_info) {
2588 const struct usb_device_id *match;
89e7533d 2589
5e23b923
MH		 2590 match = usb_match_id(intf, blacklist_table);
2591 if (match)
2592 id = match;
2593 }
2594
cfeb4145
MH		 2595 if (id->driver_info == BTUSB_IGNORE)
2596 return -ENODEV;
2597
2d25f8b4
SL		 2598 if (id->driver_info & BTUSB_ATH3012) {
2599 struct usb_device *udev = interface_to_usbdev(intf);
2600
2601 /* Old firmware would otherwise let ath3k driver load
2602 * patch and sysconfig files */
2603 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2604 return -ENODEV;
2605 }
2606
98921dbd 2607 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2608 if (!data)
2609 return -ENOMEM;
2610
2611 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2612 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2613
2614 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2615 data->intr_ep = ep_desc;
2616 continue;
2617 }
2618
2619 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2620 data->bulk_tx_ep = ep_desc;
2621 continue;
2622 }
2623
2624 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2625 data->bulk_rx_ep = ep_desc;
2626 continue;
2627 }
2628 }
2629
98921dbd 2630 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2631 return -ENODEV;
5e23b923 2632
893ba544
MH		 2633 if (id->driver_info & BTUSB_AMP) {
2634 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2635 data->cmdreq = 0x2b;
2636 } else {
2637 data->cmdreq_type = USB_TYPE_CLASS;
2638 data->cmdreq = 0x00;
2639 }
7a9d4020 2640
5e23b923 2641 data->udev = interface_to_usbdev(intf);
5fbcd260 2642 data->intf = intf;
5e23b923 2643
5e23b923 2644 INIT_WORK(&data->work, btusb_work);
7bee549e 2645 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2646 init_usb_anchor(&data->deferred);
2647 init_usb_anchor(&data->tx_anchor);
7bee549e 2648 spin_lock_init(&data->txlock);
5e23b923 2649
5e23b923
MH		 2650 init_usb_anchor(&data->intr_anchor);
2651 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2652 init_usb_anchor(&data->isoc_anchor);
803b5836 2653 spin_lock_init(&data->rxlock);
5e23b923 2654
cda0dd78
MH		 2655 if (id->driver_info & BTUSB_INTEL_NEW) {
2656 data->recv_event = btusb_recv_event_intel;
2657 data->recv_bulk = btusb_recv_bulk_intel;
2658 set_bit(BTUSB_BOOTLOADER, &data->flags);
2659 } else {
2660 data->recv_event = hci_recv_frame;
2661 data->recv_bulk = btusb_recv_bulk;
2662 }
2cbd3f5c 2663
5e23b923 2664 hdev = hci_alloc_dev();
98921dbd 2665 if (!hdev)
5e23b923 2666 return -ENOMEM;
5e23b923 2667
c13854ce 2668 hdev->bus = HCI_USB;
155961e8 2669 hci_set_drvdata(hdev, data);
5e23b923 2670
893ba544
MH		 2671 if (id->driver_info & BTUSB_AMP)
2672 hdev->dev_type = HCI_AMP;
2673 else
2674 hdev->dev_type = HCI_BREDR;
2675
5e23b923
MH		 2676 data->hdev = hdev;
2677
2678 SET_HCIDEV_DEV(hdev, &intf->dev);
2679
9f8f962c
MH		 2680 hdev->open = btusb_open;
2681 hdev->close = btusb_close;
2682 hdev->flush = btusb_flush;
2683 hdev->send = btusb_send_frame;
2684 hdev->notify = btusb_notify;
2685
2686 if (id->driver_info & BTUSB_BCM92035)
2687 hdev->setup = btusb_setup_bcm92035;
5e23b923 2688
c2bfb100 2689#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2690 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
c2bfb100 2691 hdev->setup = btbcm_setup_patchram;
1df1f591 2692 hdev->set_bdaddr = btbcm_set_bdaddr;
abbaf50e 2693 }
10d4c673 2694
941521e2 2695 if (id->driver_info & BTUSB_BCM_APPLE)
c2bfb100 2696 hdev->setup = btbcm_setup_apple;
c2bfb100 2697#endif
17b2772b 2698
cb8d6597 2699 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2700 hdev->setup = btusb_setup_intel;
bfbd45e9 2701 hdev->shutdown = btusb_shutdown_intel;
4185a0f5 2702 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2703 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2704 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
cb8d6597 2705 }
dffd30ee 2706
cda0dd78
MH		 2707 if (id->driver_info & BTUSB_INTEL_NEW) {
2708 hdev->send = btusb_send_frame_intel;
2709 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2710 hdev->hw_error = btintel_hw_error;
4185a0f5 2711 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2712 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cda0dd78
MH		 2713 }
2714
ae8df494
AK		 2715 if (id->driver_info & BTUSB_MARVELL)
2716 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2717
661cf88a
MH		 2718 if (id->driver_info & BTUSB_SWAVE) {
2719 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2720 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2721 }
d57dbe77 2722
40df783d
MH		 2723 if (id->driver_info & BTUSB_INTEL_BOOT)
2724 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2725
79f0c87d 2726 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2727 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2728 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2729 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2730 }
5859223e 2731
3267c884
KBYT		 2732 if (id->driver_info & BTUSB_QCA_ROME) {
2733 data->setup_on_usb = btusb_setup_qca;
2734 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2735 }
2736
db33c77d 2737#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2738 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2739 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2740
2741 /* Realtek devices lose their updated firmware over suspend,
2742 * but the USB hub doesn't notice any status change.
2743 * Explicitly request a device reset on resume.
2744 */
2745 set_bit(BTUSB_RESET_RESUME, &data->flags);
2746 }
db33c77d 2747#endif
a2698a9b 2748
893ba544
MH		 2749 if (id->driver_info & BTUSB_AMP) {
2750 /* AMP controllers do not support SCO packets */
2751 data->isoc = NULL;
2752 } else {
2753 /* Interface numbers are hardcoded in the specification */
2754 data->isoc = usb_ifnum_to_if(data->udev, 1);
2755 }
9bfa35fe 2756
7a9d4020 2757 if (!reset)
a6c511c6 2758 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2759
2760 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2761 if (!disable_scofix)
2762 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2763 }
2764
9bfa35fe
MH		 2765 if (id->driver_info & BTUSB_BROKEN_ISOC)
2766 data->isoc = NULL;
2767
7a9d4020
MH		 2768 if (id->driver_info & BTUSB_DIGIANSWER) {
2769 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2770 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2771 }
2772
2773 if (id->driver_info & BTUSB_CSR) {
2774 struct usb_device *udev = data->udev;
81cac64b 2775 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2776
2777 /* Old firmware would otherwise execute USB reset */
81cac64b 2778 if (bcdDevice < 0x117)
a6c511c6 2779 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2780
2781 /* Fake CSR devices with broken commands */
2782 if (bcdDevice <= 0x100)
2783 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2784
2785 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2786 }
2787
cfeb4145 2788 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2789 struct usb_device *udev = data->udev;
cfeb4145 2790
7a9d4020 2791 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2792 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2793 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2794 }
2795
3a5ef20c
MH		 2796 if (id->driver_info & BTUSB_INTEL_BOOT) {
2797 /* A bug in the bootloader causes that interrupt interface is
2798 * only enabled after receiving SetInterface(0, AltSetting=0).
2799 */
2800 err = usb_set_interface(data->udev, 0, 0);
2801 if (err < 0) {
2802 BT_ERR("failed to set interface 0, alt 0 %d", err);
2803 hci_free_dev(hdev);
2804 return err;
2805 }
2806 }
2807
9bfa35fe
MH		 2808 if (data->isoc) {
2809 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2810 data->isoc, data);
9bfa35fe
MH		 2811 if (err < 0) {
2812 hci_free_dev(hdev);
9bfa35fe
MH		 2813 return err;
2814 }
2815 }
2816
5e23b923
MH		 2817 err = hci_register_dev(hdev);
2818 if (err < 0) {
2819 hci_free_dev(hdev);
5e23b923
MH		 2820 return err;
2821 }
2822
2823 usb_set_intfdata(intf, data);
2824
2825 return 0;
2826}
2827
2828static void btusb_disconnect(struct usb_interface *intf)
2829{
2830 struct btusb_data *data = usb_get_intfdata(intf);
2831 struct hci_dev *hdev;
2832
2833 BT_DBG("intf %p", intf);
2834
2835 if (!data)
2836 return;
2837
2838 hdev = data->hdev;
5fbcd260
MH		 2839 usb_set_intfdata(data->intf, NULL);
2840
2841 if (data->isoc)
2842 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2843
2844 hci_unregister_dev(hdev);
2845
5fbcd260
MH		 2846 if (intf == data->isoc)
2847 usb_driver_release_interface(&btusb_driver, data->intf);
2848 else if (data->isoc)
2849 usb_driver_release_interface(&btusb_driver, data->isoc);
2850
5e23b923
MH		 2851 hci_free_dev(hdev);
2852}
2853
7bee549e 2854#ifdef CONFIG_PM
6a88adf2
MH		 2855static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2856{
2857 struct btusb_data *data = usb_get_intfdata(intf);
2858
2859 BT_DBG("intf %p", intf);
2860
2861 if (data->suspend_count++)
2862 return 0;
2863
7bee549e 2864 spin_lock_irq(&data->txlock);
5b1b0b81 2865 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2866 set_bit(BTUSB_SUSPENDING, &data->flags);
2867 spin_unlock_irq(&data->txlock);
2868 } else {
2869 spin_unlock_irq(&data->txlock);
2870 data->suspend_count--;
2871 return -EBUSY;
2872 }
2873
6a88adf2
MH		 2874 cancel_work_sync(&data->work);
2875
7bee549e 2876 btusb_stop_traffic(data);
6a88adf2
MH		 2877 usb_kill_anchored_urbs(&data->tx_anchor);
2878
04b8c814
DD		 2879 /* Optionally request a device reset on resume, but only when
2880 * wakeups are disabled. If wakeups are enabled we assume the
2881 * device will stay powered up throughout suspend.
2882 */
2883 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
2884 !device_may_wakeup(&data->udev->dev))
2885 data->udev->reset_resume = 1;
2886
6a88adf2
MH		 2887 return 0;
2888}
2889
7bee549e
ON		 2890static void play_deferred(struct btusb_data *data)
2891{
2892 struct urb *urb;
2893 int err;
2894
2895 while ((urb = usb_get_from_anchor(&data->deferred))) {
2896 err = usb_submit_urb(urb, GFP_ATOMIC);
2897 if (err < 0)
2898 break;
2899
2900 data->tx_in_flight++;
2901 }
2902 usb_scuttle_anchored_urbs(&data->deferred);
2903}
2904
6a88adf2
MH		 2905static int btusb_resume(struct usb_interface *intf)
2906{
2907 struct btusb_data *data = usb_get_intfdata(intf);
2908 struct hci_dev *hdev = data->hdev;
7bee549e 2909 int err = 0;
6a88adf2
MH		 2910
2911 BT_DBG("intf %p", intf);
2912
2913 if (--data->suspend_count)
2914 return 0;
2915
2916 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2917 goto done;
6a88adf2
MH		 2918
2919 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2920 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2921 if (err < 0) {
2922 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2923 goto failed;
6a88adf2
MH		 2924 }
2925 }
2926
2927 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2928 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2929 if (err < 0) {
6a88adf2 2930 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2931 goto failed;
2932 }
2933
2934 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2935 }
2936
2937 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2938 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2939 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2940 else
2941 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2942 }
2943
7bee549e
ON		 2944 spin_lock_irq(&data->txlock);
2945 play_deferred(data);
2946 clear_bit(BTUSB_SUSPENDING, &data->flags);
2947 spin_unlock_irq(&data->txlock);
2948 schedule_work(&data->work);
2949
6a88adf2 2950 return 0;
7bee549e
ON		 2951
2952failed:
2953 usb_scuttle_anchored_urbs(&data->deferred);
2954done:
2955 spin_lock_irq(&data->txlock);
2956 clear_bit(BTUSB_SUSPENDING, &data->flags);
2957 spin_unlock_irq(&data->txlock);
2958
2959 return err;
6a88adf2 2960}
7bee549e 2961#endif
6a88adf2 2962
5e23b923
MH		 2963static struct usb_driver btusb_driver = {
2964 .name = "btusb",
2965 .probe = btusb_probe,
2966 .disconnect = btusb_disconnect,
7bee549e 2967#ifdef CONFIG_PM
6a88adf2
MH		 2968 .suspend = btusb_suspend,
2969 .resume = btusb_resume,
7bee549e 2970#endif
5e23b923 2971 .id_table = btusb_table,
7bee549e 2972 .supports_autosuspend = 1,
e1f12eb6 2973 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2974};
2975
93f1508c 2976module_usb_driver(btusb_driver);
5e23b923 2977
cfeb4145
MH		 2978module_param(disable_scofix, bool, 0644);
2979MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2980
2981module_param(force_scofix, bool, 0644);
2982MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2983
2984module_param(reset, bool, 0644);
2985MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2986
5e23b923
MH		 2987MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2988MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2989MODULE_VERSION(VERSION);
2990MODULE_LICENSE("GPL");
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