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MAINTAINERS: add maintainer for generic 6LoWPAN
[thirdparty/kernel/stable.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>
5e23b923
MH		 27
28#include <net/bluetooth/bluetooth.h>
29#include <net/bluetooth/hci_core.h>
30
7bee549e 31#define VERSION "0.6"
cfeb4145 32
90ab5ee9
RR		 33static bool disable_scofix;
34static bool force_scofix;
7a9d4020 35
90ab5ee9 36static bool reset = 1;
cfeb4145
MH		 37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE 0x01
7a9d4020
MH		 41#define BTUSB_DIGIANSWER 0x02
42#define BTUSB_CSR 0x04
43#define BTUSB_SNIFFER 0x08
44#define BTUSB_BCM92035 0x10
45#define BTUSB_BROKEN_ISOC 0x20
46#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 47#define BTUSB_ATH3012 0x80
dffd30ee 48#define BTUSB_INTEL 0x100
40df783d
MH		 49#define BTUSB_INTEL_BOOT 0x200
50#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 51#define BTUSB_MARVELL 0x800
5e23b923 52
54265202 53static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
56
1fa6535f
HR		 57 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
59
178c059e
CYC		 60 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
62
c510eae3 63 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 64 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 65
3cd01976
NI		 66 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
68
0a79f674
CL		 69 /* Apple iMac11,1 */
70 { USB_DEVICE(0x05ac, 0x8215) },
71
9c047157
NI		 72 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
74
3e3ede7d
EH		 75 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
77
a63b723d
PAVM		 78 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
80
88d377b6
MAP		 81 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
83
f78b6826
JK		 84 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
86
cfeb4145
MH		 87 /* AVM BlueFRITZ! USB v2.0 */
88 { USB_DEVICE(0x057c, 0x3800) },
89
90 /* Bluetooth Ultraport Module from IBM */
91 { USB_DEVICE(0x04bf, 0x030a) },
92
93 /* ALPS Modules with non-standard id */
94 { USB_DEVICE(0x044e, 0x3001) },
95 { USB_DEVICE(0x044e, 0x3002) },
96
97 /* Ericsson with non-standard id */
98 { USB_DEVICE(0x0bdb, 0x1002) },
99
100 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 101 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 102
d13431ca 103 /* Broadcom BCM20702A0 */
0b880062
AS		 104 { USB_DEVICE(0x0489, 0xe042) },
105 { USB_DEVICE(0x04ca, 0x2003) },
1ee3ff61 106 { USB_DEVICE(0x0b05, 0x17b5) },
38a172be 107 { USB_DEVICE(0x0b05, 0x17cb) },
d13431ca
WJS		 108 { USB_DEVICE(0x413c, 0x8197) },
109
98514036 110 /* Foxconn - Hon Hai */
ee66401b 111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
98514036 112
0b880062 113 /* Broadcom devices with vendor specific id */
10d4c673
PG		 114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
115 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 116
c2aef6e8
MH		 117 /* ASUSTek Computer - Broadcom based */
118 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
119
5bcecf32
KB		 120 /* Belkin F8065bf - Broadcom based */
121 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
122
9113bfd8
JK		 123 /* IMC Networks - Broadcom based */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
125
40df783d 126 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 127 { USB_DEVICE(0x8087, 0x0a5a),
128 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 129
5e23b923
MH		 130 { } /* Terminating entry */
131};
132
133MODULE_DEVICE_TABLE(usb, btusb_table);
134
54265202 135static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 136 /* CSR BlueCore devices */
137 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
138
139 /* Broadcom BCM2033 without firmware */
140 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
141
be93112a 142 /* Atheros 3011 with sflash firmware */
0b880062
AS		 143 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
144 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
145 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 146 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 147 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 148 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 149
509e7861
CYC		 150 /* Atheros AR9285 Malbec with sflash firmware */
151 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
152
d9f51b51 153 /* Atheros 3012 with sflash firmware */
0b880062
AS		 154 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 163 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 164 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 168 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 169 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 170 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 171 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 172 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 173 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 174 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 175 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 176 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 177 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 178 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 179 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 180 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 181 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 183 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 184 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
fa2f1394 185 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
d9f51b51 186
e9036e33
CYC		 187 /* Atheros AR5BBU12 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
189
85d59726 190 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 191 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 192 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 193
cfeb4145 194 /* Broadcom BCM2035 */
7a9d4020 195 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 196 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 198
199 /* Broadcom BCM2045 */
7a9d4020
MH		 200 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
201 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 202
cfeb4145 203 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 204 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
205 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 206
207 /* HP laptop with Broadcom chip */
7a9d4020 208 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 209
210 /* Dell laptop with Broadcom chip */
7a9d4020 211 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 212
5ddd4a60 213 /* Dell Wireless 370 and 410 devices */
7a9d4020 214 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 215 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 216
7a9d4020
MH		 217 /* Belkin F8T012 and F8T013 devices */
218 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
219 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 220
5ddd4a60
MH		 221 /* Asus WL-BTD202 device */
222 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
223
224 /* Kensington Bluetooth USB adapter */
225 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
226
cfeb4145
MH		 227 /* RTX Telecom based adapters with buggy SCO support */
228 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
229 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
230
231 /* CONWISE Technology based adapters with buggy SCO support */
232 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
233
cfeb4145
MH		 234 /* Digianswer devices */
235 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
236 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
237
238 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 239 { USB_DEVICE(0x0a12, 0x0002),
240 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 241
242 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 243 { USB_DEVICE(0x16d3, 0x0002),
244 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 245
dffd30ee
THJA		 246 /* Intel Bluetooth device */
247 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 248 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
dffd30ee 249
ae8df494
AK		 250 /* Marvell device */
251 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
252 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
253
5e23b923
MH		 254 { } /* Terminating entry */
255};
256
9bfa35fe
MH		 257#define BTUSB_MAX_ISOC_FRAMES 10
258
5e23b923
MH		 259#define BTUSB_INTR_RUNNING 0
260#define BTUSB_BULK_RUNNING 1
9bfa35fe 261#define BTUSB_ISOC_RUNNING 2
7bee549e 262#define BTUSB_SUSPENDING 3
08b8b6c4 263#define BTUSB_DID_ISO_RESUME 4
5e23b923
MH		 264
265struct btusb_data {
266 struct hci_dev *hdev;
267 struct usb_device *udev;
5fbcd260 268 struct usb_interface *intf;
9bfa35fe 269 struct usb_interface *isoc;
5e23b923
MH		 270
271 spinlock_t lock;
272
273 unsigned long flags;
274
275 struct work_struct work;
7bee549e 276 struct work_struct waker;
5e23b923
MH		 277
278 struct usb_anchor tx_anchor;
279 struct usb_anchor intr_anchor;
280 struct usb_anchor bulk_anchor;
9bfa35fe 281 struct usb_anchor isoc_anchor;
7bee549e
ON		 282 struct usb_anchor deferred;
283 int tx_in_flight;
284 spinlock_t txlock;
5e23b923
MH		 285
286 struct usb_endpoint_descriptor *intr_ep;
287 struct usb_endpoint_descriptor *bulk_tx_ep;
288 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 289 struct usb_endpoint_descriptor *isoc_tx_ep;
290 struct usb_endpoint_descriptor *isoc_rx_ep;
291
7a9d4020
MH		 292 __u8 cmdreq_type;
293
43c2e57f 294 unsigned int sco_num;
9bfa35fe 295 int isoc_altsetting;
6a88adf2 296 int suspend_count;
5e23b923
MH		 297};
298
299static void btusb_intr_complete(struct urb *urb)
300{
301 struct hci_dev *hdev = urb->context;
155961e8 302 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 303 int err;
304
305 BT_DBG("%s urb %p status %d count %d", hdev->name,
306 urb, urb->status, urb->actual_length);
307
308 if (!test_bit(HCI_RUNNING, &hdev->flags))
309 return;
310
311 if (urb->status == 0) {
9bfa35fe
MH		 312 hdev->stat.byte_rx += urb->actual_length;
313
5e23b923
MH		 314 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
315 urb->transfer_buffer,
316 urb->actual_length) < 0) {
317 BT_ERR("%s corrupted event packet", hdev->name);
318 hdev->stat.err_rx++;
319 }
85560c4a
CC		 320 } else if (urb->status == -ENOENT) {
321 /* Avoid suspend failed when usb_kill_urb */
322 return;
5e23b923
MH		 323 }
324
325 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
326 return;
327
7bee549e 328 usb_mark_last_busy(data->udev);
5e23b923
MH		 329 usb_anchor_urb(urb, &data->intr_anchor);
330
331 err = usb_submit_urb(urb, GFP_ATOMIC);
332 if (err < 0) {
4935f1c1
PB		 333 /* -EPERM: urb is being killed;
334 * -ENODEV: device got disconnected */
335 if (err != -EPERM && err != -ENODEV)
61faddf6 336 BT_ERR("%s urb %p failed to resubmit (%d)",
5e23b923
MH		 337 hdev->name, urb, -err);
338 usb_unanchor_urb(urb);
339 }
340}
341
2eda66f4 342static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 343{
155961e8 344 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 345 struct urb *urb;
346 unsigned char *buf;
347 unsigned int pipe;
348 int err, size;
349
350 BT_DBG("%s", hdev->name);
351
9bfa35fe
MH		 352 if (!data->intr_ep)
353 return -ENODEV;
354
2eda66f4 355 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 356 if (!urb)
357 return -ENOMEM;
358
359 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
360
2eda66f4 361 buf = kmalloc(size, mem_flags);
5e23b923
MH		 362 if (!buf) {
363 usb_free_urb(urb);
364 return -ENOMEM;
365 }
366
367 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
368
369 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
370 btusb_intr_complete, hdev,
371 data->intr_ep->bInterval);
372
373 urb->transfer_flags |= URB_FREE_BUFFER;
374
375 usb_anchor_urb(urb, &data->intr_anchor);
376
2eda66f4 377 err = usb_submit_urb(urb, mem_flags);
5e23b923 378 if (err < 0) {
d4b8d1c9
PB		 379 if (err != -EPERM && err != -ENODEV)
380 BT_ERR("%s urb %p submission failed (%d)",
5e23b923
MH		 381 hdev->name, urb, -err);
382 usb_unanchor_urb(urb);
5e23b923
MH		 383 }
384
385 usb_free_urb(urb);
386
387 return err;
388}
389
390static void btusb_bulk_complete(struct urb *urb)
391{
392 struct hci_dev *hdev = urb->context;
155961e8 393 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 394 int err;
395
396 BT_DBG("%s urb %p status %d count %d", hdev->name,
397 urb, urb->status, urb->actual_length);
398
399 if (!test_bit(HCI_RUNNING, &hdev->flags))
400 return;
401
402 if (urb->status == 0) {
9bfa35fe
MH		 403 hdev->stat.byte_rx += urb->actual_length;
404
5e23b923
MH		 405 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
406 urb->transfer_buffer,
407 urb->actual_length) < 0) {
408 BT_ERR("%s corrupted ACL packet", hdev->name);
409 hdev->stat.err_rx++;
410 }
85560c4a
CC		 411 } else if (urb->status == -ENOENT) {
412 /* Avoid suspend failed when usb_kill_urb */
413 return;
5e23b923
MH		 414 }
415
416 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
417 return;
418
419 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 420 usb_mark_last_busy(data->udev);
5e23b923
MH		 421
422 err = usb_submit_urb(urb, GFP_ATOMIC);
423 if (err < 0) {
4935f1c1
PB		 424 /* -EPERM: urb is being killed;
425 * -ENODEV: device got disconnected */
426 if (err != -EPERM && err != -ENODEV)
61faddf6 427 BT_ERR("%s urb %p failed to resubmit (%d)",
5e23b923
MH		 428 hdev->name, urb, -err);
429 usb_unanchor_urb(urb);
430 }
431}
432
2eda66f4 433static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 434{
155961e8 435 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 436 struct urb *urb;
437 unsigned char *buf;
438 unsigned int pipe;
290ba200 439 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 440
441 BT_DBG("%s", hdev->name);
442
9bfa35fe
MH		 443 if (!data->bulk_rx_ep)
444 return -ENODEV;
445
2eda66f4 446 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 447 if (!urb)
448 return -ENOMEM;
449
2eda66f4 450 buf = kmalloc(size, mem_flags);
5e23b923
MH		 451 if (!buf) {
452 usb_free_urb(urb);
453 return -ENOMEM;
454 }
455
456 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
457
458 usb_fill_bulk_urb(urb, data->udev, pipe,
459 buf, size, btusb_bulk_complete, hdev);
460
461 urb->transfer_flags |= URB_FREE_BUFFER;
462
7bee549e 463 usb_mark_last_busy(data->udev);
5e23b923
MH		 464 usb_anchor_urb(urb, &data->bulk_anchor);
465
2eda66f4 466 err = usb_submit_urb(urb, mem_flags);
5e23b923 467 if (err < 0) {
d4b8d1c9
PB		 468 if (err != -EPERM && err != -ENODEV)
469 BT_ERR("%s urb %p submission failed (%d)",
5e23b923
MH		 470 hdev->name, urb, -err);
471 usb_unanchor_urb(urb);
5e23b923
MH		 472 }
473
474 usb_free_urb(urb);
475
476 return err;
477}
478
9bfa35fe
MH		 479static void btusb_isoc_complete(struct urb *urb)
480{
481 struct hci_dev *hdev = urb->context;
155961e8 482 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 483 int i, err;
484
485 BT_DBG("%s urb %p status %d count %d", hdev->name,
486 urb, urb->status, urb->actual_length);
487
488 if (!test_bit(HCI_RUNNING, &hdev->flags))
489 return;
490
491 if (urb->status == 0) {
492 for (i = 0; i < urb->number_of_packets; i++) {
493 unsigned int offset = urb->iso_frame_desc[i].offset;
494 unsigned int length = urb->iso_frame_desc[i].actual_length;
495
496 if (urb->iso_frame_desc[i].status)
497 continue;
498
499 hdev->stat.byte_rx += length;
500
501 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
502 urb->transfer_buffer + offset,
503 length) < 0) {
504 BT_ERR("%s corrupted SCO packet", hdev->name);
505 hdev->stat.err_rx++;
506 }
507 }
85560c4a
CC		 508 } else if (urb->status == -ENOENT) {
509 /* Avoid suspend failed when usb_kill_urb */
510 return;
9bfa35fe
MH		 511 }
512
513 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
514 return;
515
516 usb_anchor_urb(urb, &data->isoc_anchor);
517
518 err = usb_submit_urb(urb, GFP_ATOMIC);
519 if (err < 0) {
4935f1c1
PB		 520 /* -EPERM: urb is being killed;
521 * -ENODEV: device got disconnected */
522 if (err != -EPERM && err != -ENODEV)
61faddf6 523 BT_ERR("%s urb %p failed to resubmit (%d)",
9bfa35fe
MH		 524 hdev->name, urb, -err);
525 usb_unanchor_urb(urb);
526 }
527}
528
42b16b3f 529static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 530{
531 int i, offset = 0;
532
533 BT_DBG("len %d mtu %d", len, mtu);
534
535 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
536 i++, offset += mtu, len -= mtu) {
537 urb->iso_frame_desc[i].offset = offset;
538 urb->iso_frame_desc[i].length = mtu;
539 }
540
541 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
542 urb->iso_frame_desc[i].offset = offset;
543 urb->iso_frame_desc[i].length = len;
544 i++;
545 }
546
547 urb->number_of_packets = i;
548}
549
2eda66f4 550static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 551{
155961e8 552 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 553 struct urb *urb;
554 unsigned char *buf;
555 unsigned int pipe;
556 int err, size;
557
558 BT_DBG("%s", hdev->name);
559
560 if (!data->isoc_rx_ep)
561 return -ENODEV;
562
2eda66f4 563 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 564 if (!urb)
565 return -ENOMEM;
566
567 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
568 BTUSB_MAX_ISOC_FRAMES;
569
2eda66f4 570 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 571 if (!buf) {
572 usb_free_urb(urb);
573 return -ENOMEM;
574 }
575
576 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
577
fa0fb93f
BZ		 578 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
579 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe
MH		 580
581 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 582
583 __fill_isoc_descriptor(urb, size,
584 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
585
586 usb_anchor_urb(urb, &data->isoc_anchor);
587
2eda66f4 588 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 589 if (err < 0) {
d4b8d1c9
PB		 590 if (err != -EPERM && err != -ENODEV)
591 BT_ERR("%s urb %p submission failed (%d)",
9bfa35fe
MH		 592 hdev->name, urb, -err);
593 usb_unanchor_urb(urb);
9bfa35fe
MH		 594 }
595
596 usb_free_urb(urb);
597
598 return err;
599}
600
5e23b923 601static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 602{
603 struct sk_buff *skb = urb->context;
604 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
155961e8 605 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e
ON		 606
607 BT_DBG("%s urb %p status %d count %d", hdev->name,
608 urb, urb->status, urb->actual_length);
609
610 if (!test_bit(HCI_RUNNING, &hdev->flags))
611 goto done;
612
613 if (!urb->status)
614 hdev->stat.byte_tx += urb->transfer_buffer_length;
615 else
616 hdev->stat.err_tx++;
617
618done:
619 spin_lock(&data->txlock);
620 data->tx_in_flight--;
621 spin_unlock(&data->txlock);
622
623 kfree(urb->setup_packet);
624
625 kfree_skb(skb);
626}
627
628static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 629{
630 struct sk_buff *skb = urb->context;
631 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
632
633 BT_DBG("%s urb %p status %d count %d", hdev->name,
634 urb, urb->status, urb->actual_length);
635
636 if (!test_bit(HCI_RUNNING, &hdev->flags))
637 goto done;
638
639 if (!urb->status)
640 hdev->stat.byte_tx += urb->transfer_buffer_length;
641 else
642 hdev->stat.err_tx++;
643
644done:
645 kfree(urb->setup_packet);
646
647 kfree_skb(skb);
648}
649
650static int btusb_open(struct hci_dev *hdev)
651{
155961e8 652 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 653 int err;
654
655 BT_DBG("%s", hdev->name);
656
7bee549e
ON		 657 err = usb_autopm_get_interface(data->intf);
658 if (err < 0)
659 return err;
660
661 data->intf->needs_remote_wakeup = 1;
662
5e23b923 663 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 664 goto done;
5e23b923
MH		 665
666 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 667 goto done;
5e23b923 668
2eda66f4 669 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 670 if (err < 0)
671 goto failed;
672
673 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 674 if (err < 0) {
43c2e57f
MH		 675 usb_kill_anchored_urbs(&data->intr_anchor);
676 goto failed;
5e23b923
MH		 677 }
678
43c2e57f
MH		 679 set_bit(BTUSB_BULK_RUNNING, &data->flags);
680 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
681
7bee549e
ON		 682done:
683 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 684 return 0;
685
686failed:
687 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
688 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 689 usb_autopm_put_interface(data->intf);
5e23b923
MH		 690 return err;
691}
692
7bee549e
ON		 693static void btusb_stop_traffic(struct btusb_data *data)
694{
695 usb_kill_anchored_urbs(&data->intr_anchor);
696 usb_kill_anchored_urbs(&data->bulk_anchor);
697 usb_kill_anchored_urbs(&data->isoc_anchor);
698}
699
5e23b923
MH		 700static int btusb_close(struct hci_dev *hdev)
701{
155961e8 702 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 703 int err;
5e23b923
MH		 704
705 BT_DBG("%s", hdev->name);
706
707 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
708 return 0;
709
e8c3c3d2 710 cancel_work_sync(&data->work);
404291ac 711 cancel_work_sync(&data->waker);
e8c3c3d2 712
9bfa35fe 713 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 714 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 715 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 716
717 btusb_stop_traffic(data);
718 err = usb_autopm_get_interface(data->intf);
719 if (err < 0)
7b8e2c1d 720 goto failed;
7bee549e
ON		 721
722 data->intf->needs_remote_wakeup = 0;
723 usb_autopm_put_interface(data->intf);
5e23b923 724
7b8e2c1d
ON		 725failed:
726 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 727 return 0;
728}
729
730static int btusb_flush(struct hci_dev *hdev)
731{
155961e8 732 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 733
734 BT_DBG("%s", hdev->name);
735
736 usb_kill_anchored_urbs(&data->tx_anchor);
737
738 return 0;
739}
740
047b2ec8 741static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 742{
155961e8 743 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 744 struct usb_ctrlrequest *dr;
745 struct urb *urb;
746 unsigned int pipe;
5e23b923 747
047b2ec8
MH		 748 urb = usb_alloc_urb(0, GFP_KERNEL);
749 if (!urb)
750 return ERR_PTR(-ENOMEM);
5e23b923 751
047b2ec8
MH		 752 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
753 if (!dr) {
754 usb_free_urb(urb);
755 return ERR_PTR(-ENOMEM);
756 }
5e23b923 757
047b2ec8
MH		 758 dr->bRequestType = data->cmdreq_type;
759 dr->bRequest = 0;
760 dr->wIndex = 0;
761 dr->wValue = 0;
762 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 763
047b2ec8 764 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 765
047b2ec8
MH		 766 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
767 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 768
047b2ec8 769 skb->dev = (void *) hdev;
5e23b923 770
047b2ec8
MH		 771 return urb;
772}
5e23b923 773
047b2ec8
MH		 774static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
775{
776 struct btusb_data *data = hci_get_drvdata(hdev);
777 struct urb *urb;
778 unsigned int pipe;
5e23b923 779
047b2ec8
MH		 780 if (!data->bulk_tx_ep)
781 return ERR_PTR(-ENODEV);
9bfa35fe 782
047b2ec8
MH		 783 urb = usb_alloc_urb(0, GFP_KERNEL);
784 if (!urb)
785 return ERR_PTR(-ENOMEM);
5e23b923 786
047b2ec8 787 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 788
047b2ec8
MH		 789 usb_fill_bulk_urb(urb, data->udev, pipe,
790 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 791
047b2ec8 792 skb->dev = (void *) hdev;
5e23b923 793
047b2ec8
MH		 794 return urb;
795}
9bfa35fe 796
047b2ec8
MH		 797static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
798{
799 struct btusb_data *data = hci_get_drvdata(hdev);
800 struct urb *urb;
801 unsigned int pipe;
9bfa35fe 802
047b2ec8
MH		 803 if (!data->isoc_tx_ep)
804 return ERR_PTR(-ENODEV);
9bfa35fe 805
047b2ec8
MH		 806 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
807 if (!urb)
808 return ERR_PTR(-ENOMEM);
9bfa35fe 809
047b2ec8 810 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 811
047b2ec8
MH		 812 usb_fill_int_urb(urb, data->udev, pipe,
813 skb->data, skb->len, btusb_isoc_tx_complete,
814 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 815
047b2ec8 816 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 817
047b2ec8
MH		 818 __fill_isoc_descriptor(urb, skb->len,
819 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 820
047b2ec8
MH		 821 skb->dev = (void *) hdev;
822
823 return urb;
824}
825
826static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
827{
828 struct btusb_data *data = hci_get_drvdata(hdev);
829 int err;
7bee549e 830
5e23b923
MH		 831 usb_anchor_urb(urb, &data->tx_anchor);
832
e9753eff 833 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 834 if (err < 0) {
5a9b80e2
PB		 835 if (err != -EPERM && err != -ENODEV)
836 BT_ERR("%s urb %p submission failed (%d)",
837 hdev->name, urb, -err);
5e23b923
MH		 838 kfree(urb->setup_packet);
839 usb_unanchor_urb(urb);
7bee549e
ON		 840 } else {
841 usb_mark_last_busy(data->udev);
5e23b923
MH		 842 }
843
54a8a79c 844 usb_free_urb(urb);
5e23b923
MH		 845 return err;
846}
847
047b2ec8
MH		 848static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
849{
850 struct btusb_data *data = hci_get_drvdata(hdev);
851 unsigned long flags;
852 bool suspending;
853
854 spin_lock_irqsave(&data->txlock, flags);
855 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
856 if (!suspending)
857 data->tx_in_flight++;
858 spin_unlock_irqrestore(&data->txlock, flags);
859
860 if (!suspending)
861 return submit_tx_urb(hdev, urb);
862
863 usb_anchor_urb(urb, &data->deferred);
864 schedule_work(&data->waker);
865
866 usb_free_urb(urb);
867 return 0;
868}
869
870static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
871{
872 struct urb *urb;
873
874 BT_DBG("%s", hdev->name);
875
876 if (!test_bit(HCI_RUNNING, &hdev->flags))
877 return -EBUSY;
878
879 switch (bt_cb(skb)->pkt_type) {
880 case HCI_COMMAND_PKT:
881 urb = alloc_ctrl_urb(hdev, skb);
882 if (IS_ERR(urb))
883 return PTR_ERR(urb);
884
885 hdev->stat.cmd_tx++;
886 return submit_or_queue_tx_urb(hdev, urb);
887
888 case HCI_ACLDATA_PKT:
889 urb = alloc_bulk_urb(hdev, skb);
890 if (IS_ERR(urb))
891 return PTR_ERR(urb);
892
893 hdev->stat.acl_tx++;
894 return submit_or_queue_tx_urb(hdev, urb);
895
896 case HCI_SCODATA_PKT:
897 if (hci_conn_num(hdev, SCO_LINK) < 1)
898 return -ENODEV;
899
900 urb = alloc_isoc_urb(hdev, skb);
901 if (IS_ERR(urb))
902 return PTR_ERR(urb);
903
904 hdev->stat.sco_tx++;
905 return submit_tx_urb(hdev, urb);
906 }
907
908 return -EILSEQ;
909}
910
5e23b923
MH		 911static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
912{
155961e8 913 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 914
915 BT_DBG("%s evt %d", hdev->name, evt);
916
014f7bc7
MH		 917 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
918 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 919 schedule_work(&data->work);
a780efa8 920 }
5e23b923
MH		 921}
922
42b16b3f 923static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 924{
155961e8 925 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 926 struct usb_interface *intf = data->isoc;
927 struct usb_endpoint_descriptor *ep_desc;
928 int i, err;
929
930 if (!data->isoc)
931 return -ENODEV;
932
933 err = usb_set_interface(data->udev, 1, altsetting);
934 if (err < 0) {
935 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
936 return err;
937 }
938
939 data->isoc_altsetting = altsetting;
940
941 data->isoc_tx_ep = NULL;
942 data->isoc_rx_ep = NULL;
943
944 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
945 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
946
947 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
948 data->isoc_tx_ep = ep_desc;
949 continue;
950 }
951
952 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
953 data->isoc_rx_ep = ep_desc;
954 continue;
955 }
956 }
957
958 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
959 BT_ERR("%s invalid SCO descriptors", hdev->name);
960 return -ENODEV;
961 }
962
963 return 0;
964}
965
5e23b923
MH		 966static void btusb_work(struct work_struct *work)
967{
968 struct btusb_data *data = container_of(work, struct btusb_data, work);
969 struct hci_dev *hdev = data->hdev;
f4001d28 970 int new_alts;
7bee549e 971 int err;
5e23b923 972
014f7bc7 973 if (data->sco_num > 0) {
08b8b6c4 974 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 975 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 976 if (err < 0) {
977 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
978 usb_kill_anchored_urbs(&data->isoc_anchor);
979 return;
980 }
981
08b8b6c4 982 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 983 }
f4001d28
MA		 984
985 if (hdev->voice_setting & 0x0020) {
986 static const int alts[3] = { 2, 4, 5 };
014f7bc7 987 new_alts = alts[data->sco_num - 1];
f4001d28 988 } else {
014f7bc7 989 new_alts = data->sco_num;
f4001d28
MA		 990 }
991
992 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 993 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
994 usb_kill_anchored_urbs(&data->isoc_anchor);
995
f4001d28 996 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 997 return;
998 }
999
1000 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1001 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1002 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1003 else
2eda66f4 1004 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1005 }
1006 } else {
1007 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1008 usb_kill_anchored_urbs(&data->isoc_anchor);
1009
1010 __set_isoc_interface(hdev, 0);
08b8b6c4 1011 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1012 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1013 }
1014}
1015
7bee549e
ON		 1016static void btusb_waker(struct work_struct *work)
1017{
1018 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1019 int err;
1020
1021 err = usb_autopm_get_interface(data->intf);
1022 if (err < 0)
1023 return;
1024
1025 usb_autopm_put_interface(data->intf);
1026}
1027
9f8f962c
MH		 1028static int btusb_setup_bcm92035(struct hci_dev *hdev)
1029{
1030 struct sk_buff *skb;
1031 u8 val = 0x00;
1032
1033 BT_DBG("%s", hdev->name);
1034
1035 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1036 if (IS_ERR(skb))
1037 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1038 else
1039 kfree_skb(skb);
1040
1041 return 0;
1042}
1043
81cac64b
MH		 1044static int btusb_setup_csr(struct hci_dev *hdev)
1045{
1046 struct hci_rp_read_local_version *rp;
1047 struct sk_buff *skb;
1048 int ret;
1049
1050 BT_DBG("%s", hdev->name);
1051
1052 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1053 HCI_INIT_TIMEOUT);
1054 if (IS_ERR(skb)) {
1055 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1056 return -PTR_ERR(skb);
1057 }
1058
1059 rp = (struct hci_rp_read_local_version *) skb->data;
1060
1061 if (!rp->status) {
1062 if (le16_to_cpu(rp->manufacturer) != 10) {
1063 /* Clear the reset quirk since this is not an actual
1064 * early Bluetooth 1.1 device from CSR.
1065 */
1066 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1067
1068 /* These fake CSR controllers have all a broken
1069 * stored link key handling and so just disable it.
1070 */
1071 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1072 &hdev->quirks);
1073 }
1074 }
1075
1076 ret = -bt_to_errno(rp->status);
1077
1078 kfree_skb(skb);
1079
1080 return ret;
1081}
1082
dffd30ee
THJA		 1083struct intel_version {
1084 u8 status;
1085 u8 hw_platform;
1086 u8 hw_variant;
1087 u8 hw_revision;
1088 u8 fw_variant;
1089 u8 fw_revision;
1090 u8 fw_build_num;
1091 u8 fw_build_ww;
1092 u8 fw_build_yy;
1093 u8 fw_patch_num;
1094} __packed;
1095
1096static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1097 struct intel_version *ver)
1098{
1099 const struct firmware *fw;
1100 char fwname[64];
1101 int ret;
1102
1103 snprintf(fwname, sizeof(fwname),
1104 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1105 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1106 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1107 ver->fw_build_ww, ver->fw_build_yy);
1108
1109 ret = request_firmware(&fw, fwname, &hdev->dev);
1110 if (ret < 0) {
1111 if (ret == -EINVAL) {
1112 BT_ERR("%s Intel firmware file request failed (%d)",
1113 hdev->name, ret);
1114 return NULL;
1115 }
1116
1117 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1118 hdev->name, fwname, ret);
1119
1120 /* If the correct firmware patch file is not found, use the
1121 * default firmware patch file instead
1122 */
1123 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1124 ver->hw_platform, ver->hw_variant);
1125 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1126 BT_ERR("%s failed to open default Intel fw file: %s",
1127 hdev->name, fwname);
1128 return NULL;
1129 }
1130 }
1131
1132 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1133
1134 return fw;
1135}
1136
1137static int btusb_setup_intel_patching(struct hci_dev *hdev,
1138 const struct firmware *fw,
1139 const u8 **fw_ptr, int *disable_patch)
1140{
1141 struct sk_buff *skb;
1142 struct hci_command_hdr *cmd;
1143 const u8 *cmd_param;
1144 struct hci_event_hdr *evt = NULL;
1145 const u8 *evt_param = NULL;
1146 int remain = fw->size - (*fw_ptr - fw->data);
1147
1148 /* The first byte indicates the types of the patch command or event.
1149 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1150 * in the current firmware buffer doesn't start with 0x01 or
1151 * the size of remain buffer is smaller than HCI command header,
1152 * the firmware file is corrupted and it should stop the patching
1153 * process.
1154 */
1155 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1156 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1157 return -EINVAL;
1158 }
1159 (*fw_ptr)++;
1160 remain--;
1161
1162 cmd = (struct hci_command_hdr *)(*fw_ptr);
1163 *fw_ptr += sizeof(*cmd);
1164 remain -= sizeof(*cmd);
1165
1166 /* Ensure that the remain firmware data is long enough than the length
1167 * of command parameter. If not, the firmware file is corrupted.
1168 */
1169 if (remain < cmd->plen) {
1170 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1171 return -EFAULT;
1172 }
1173
1174 /* If there is a command that loads a patch in the firmware
1175 * file, then enable the patch upon success, otherwise just
1176 * disable the manufacturer mode, for example patch activation
1177 * is not required when the default firmware patch file is used
1178 * because there are no patch data to load.
1179 */
1180 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1181 *disable_patch = 0;
1182
1183 cmd_param = *fw_ptr;
1184 *fw_ptr += cmd->plen;
1185 remain -= cmd->plen;
1186
1187 /* This reads the expected events when the above command is sent to the
1188 * device. Some vendor commands expects more than one events, for
1189 * example command status event followed by vendor specific event.
1190 * For this case, it only keeps the last expected event. so the command
1191 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1192 * last expected event.
1193 */
1194 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1195 (*fw_ptr)++;
1196 remain--;
1197
1198 evt = (struct hci_event_hdr *)(*fw_ptr);
1199 *fw_ptr += sizeof(*evt);
1200 remain -= sizeof(*evt);
1201
1202 if (remain < evt->plen) {
1203 BT_ERR("%s Intel fw corrupted: invalid evt len",
1204 hdev->name);
1205 return -EFAULT;
1206 }
1207
1208 evt_param = *fw_ptr;
1209 *fw_ptr += evt->plen;
1210 remain -= evt->plen;
1211 }
1212
1213 /* Every HCI commands in the firmware file has its correspond event.
1214 * If event is not found or remain is smaller than zero, the firmware
1215 * file is corrupted.
1216 */
1217 if (!evt || !evt_param || remain < 0) {
1218 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1219 return -EFAULT;
1220 }
1221
1222 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1223 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1224 if (IS_ERR(skb)) {
1225 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1226 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1227 return PTR_ERR(skb);
dffd30ee
THJA		 1228 }
1229
1230 /* It ensures that the returned event matches the event data read from
1231 * the firmware file. At fist, it checks the length and then
1232 * the contents of the event.
1233 */
1234 if (skb->len != evt->plen) {
1235 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1236 le16_to_cpu(cmd->opcode));
1237 kfree_skb(skb);
1238 return -EFAULT;
1239 }
1240
1241 if (memcmp(skb->data, evt_param, evt->plen)) {
1242 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1243 hdev->name, le16_to_cpu(cmd->opcode));
1244 kfree_skb(skb);
1245 return -EFAULT;
1246 }
1247 kfree_skb(skb);
1248
1249 return 0;
1250}
1251
40cb0984
MH		 1252#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1253
1254static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1255{
1256 struct sk_buff *skb;
1257 struct hci_rp_read_bd_addr *rp;
1258
1259 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1260 HCI_INIT_TIMEOUT);
1261 if (IS_ERR(skb)) {
1262 BT_ERR("%s reading Intel device address failed (%ld)",
1263 hdev->name, PTR_ERR(skb));
1264 return PTR_ERR(skb);
1265 }
1266
1267 if (skb->len != sizeof(*rp)) {
1268 BT_ERR("%s Intel device address length mismatch", hdev->name);
1269 kfree_skb(skb);
1270 return -EIO;
1271 }
1272
1273 rp = (struct hci_rp_read_bd_addr *) skb->data;
1274 if (rp->status) {
1275 BT_ERR("%s Intel device address result failed (%02x)",
1276 hdev->name, rp->status);
1277 kfree_skb(skb);
1278 return -bt_to_errno(rp->status);
1279 }
1280
1281 /* For some Intel based controllers, the default Bluetooth device
1282 * address 00:03:19:9E:8B:00 can be found. These controllers are
1283 * fully operational, but have the danger of duplicate addresses
1284 * and that in turn can cause problems with Bluetooth operation.
1285 */
4739b5b1 1286 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
40cb0984
MH		 1287 BT_ERR("%s found Intel default device address (%pMR)",
1288 hdev->name, &rp->bdaddr);
4739b5b1
MH		 1289 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1290 }
40cb0984
MH		 1291
1292 kfree_skb(skb);
1293
1294 return 0;
1295}
1296
dffd30ee
THJA		 1297static int btusb_setup_intel(struct hci_dev *hdev)
1298{
1299 struct sk_buff *skb;
1300 const struct firmware *fw;
1301 const u8 *fw_ptr;
1302 int disable_patch;
1303 struct intel_version *ver;
1304
1305 const u8 mfg_enable[] = { 0x01, 0x00 };
1306 const u8 mfg_disable[] = { 0x00, 0x00 };
1307 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1308 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1309
1310 BT_DBG("%s", hdev->name);
1311
1312 /* The controller has a bug with the first HCI command sent to it
1313 * returning number of completed commands as zero. This would stall the
1314 * command processing in the Bluetooth core.
1315 *
1316 * As a workaround, send HCI Reset command first which will reset the
1317 * number of completed commands and allow normal command processing
1318 * from now on.
1319 */
1320 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1321 if (IS_ERR(skb)) {
1322 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1323 hdev->name, PTR_ERR(skb));
d9c78e97 1324 return PTR_ERR(skb);
dffd30ee
THJA		 1325 }
1326 kfree_skb(skb);
1327
1328 /* Read Intel specific controller version first to allow selection of
1329 * which firmware file to load.
1330 *
1331 * The returned information are hardware variant and revision plus
1332 * firmware variant, revision and build number.
1333 */
1334 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1335 if (IS_ERR(skb)) {
1336 BT_ERR("%s reading Intel fw version command failed (%ld)",
1337 hdev->name, PTR_ERR(skb));
d9c78e97 1338 return PTR_ERR(skb);
dffd30ee
THJA		 1339 }
1340
1341 if (skb->len != sizeof(*ver)) {
1342 BT_ERR("%s Intel version event length mismatch", hdev->name);
1343 kfree_skb(skb);
1344 return -EIO;
1345 }
1346
1347 ver = (struct intel_version *)skb->data;
1348 if (ver->status) {
1349 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1350 ver->status);
1351 kfree_skb(skb);
1352 return -bt_to_errno(ver->status);
1353 }
1354
1355 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1356 hdev->name, ver->hw_platform, ver->hw_variant,
1357 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1358 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1359 ver->fw_patch_num);
1360
1361 /* fw_patch_num indicates the version of patch the device currently
1362 * have. If there is no patch data in the device, it is always 0x00.
1363 * So, if it is other than 0x00, no need to patch the deivce again.
1364 */
1365 if (ver->fw_patch_num) {
1366 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1367 hdev->name, ver->fw_patch_num);
1368 kfree_skb(skb);
40cb0984 1369 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1370 return 0;
1371 }
1372
1373 /* Opens the firmware patch file based on the firmware version read
1374 * from the controller. If it fails to open the matching firmware
1375 * patch file, it tries to open the default firmware patch file.
1376 * If no patch file is found, allow the device to operate without
1377 * a patch.
1378 */
1379 fw = btusb_setup_intel_get_fw(hdev, ver);
1380 if (!fw) {
1381 kfree_skb(skb);
40cb0984 1382 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1383 return 0;
1384 }
1385 fw_ptr = fw->data;
1386
1387 /* This Intel specific command enables the manufacturer mode of the
1388 * controller.
1389 *
1390 * Only while this mode is enabled, the driver can download the
1391 * firmware patch data and configuration parameters.
1392 */
1393 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1394 if (IS_ERR(skb)) {
1395 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1396 hdev->name, PTR_ERR(skb));
1397 release_firmware(fw);
d9c78e97 1398 return PTR_ERR(skb);
dffd30ee
THJA		 1399 }
1400
1401 if (skb->data[0]) {
1402 u8 evt_status = skb->data[0];
1403 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1404 hdev->name, evt_status);
1405 kfree_skb(skb);
1406 release_firmware(fw);
1407 return -bt_to_errno(evt_status);
1408 }
1409 kfree_skb(skb);
1410
1411 disable_patch = 1;
1412
1413 /* The firmware data file consists of list of Intel specific HCI
1414 * commands and its expected events. The first byte indicates the
1415 * type of the message, either HCI command or HCI event.
1416 *
1417 * It reads the command and its expected event from the firmware file,
1418 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1419 * the returned event is compared with the event read from the firmware
1420 * file and it will continue until all the messages are downloaded to
1421 * the controller.
1422 *
1423 * Once the firmware patching is completed successfully,
1424 * the manufacturer mode is disabled with reset and activating the
1425 * downloaded patch.
1426 *
1427 * If the firmware patching fails, the manufacturer mode is
1428 * disabled with reset and deactivating the patch.
1429 *
1430 * If the default patch file is used, no reset is done when disabling
1431 * the manufacturer.
1432 */
1433 while (fw->size > fw_ptr - fw->data) {
1434 int ret;
1435
1436 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1437 &disable_patch);
1438 if (ret < 0)
1439 goto exit_mfg_deactivate;
1440 }
1441
1442 release_firmware(fw);
1443
1444 if (disable_patch)
1445 goto exit_mfg_disable;
1446
1447 /* Patching completed successfully and disable the manufacturer mode
1448 * with reset and activate the downloaded firmware patches.
1449 */
1450 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1451 mfg_reset_activate, HCI_INIT_TIMEOUT);
1452 if (IS_ERR(skb)) {
1453 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1454 hdev->name, PTR_ERR(skb));
d9c78e97 1455 return PTR_ERR(skb);
dffd30ee
THJA		 1456 }
1457 kfree_skb(skb);
1458
1459 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1460 hdev->name);
1461
40cb0984 1462 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1463 return 0;
1464
1465exit_mfg_disable:
1466 /* Disable the manufacturer mode without reset */
1467 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1468 HCI_INIT_TIMEOUT);
1469 if (IS_ERR(skb)) {
1470 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1471 hdev->name, PTR_ERR(skb));
d9c78e97 1472 return PTR_ERR(skb);
dffd30ee
THJA		 1473 }
1474 kfree_skb(skb);
1475
1476 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984
MH		 1477
1478 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1479 return 0;
1480
1481exit_mfg_deactivate:
1482 release_firmware(fw);
1483
1484 /* Patching failed. Disable the manufacturer mode with reset and
1485 * deactivate the downloaded firmware patches.
1486 */
1487 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1488 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1489 if (IS_ERR(skb)) {
1490 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1491 hdev->name, PTR_ERR(skb));
d9c78e97 1492 return PTR_ERR(skb);
dffd30ee
THJA		 1493 }
1494 kfree_skb(skb);
1495
1496 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1497 hdev->name);
1498
40cb0984 1499 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1500 return 0;
1501}
1502
cb8d6597
MH		 1503static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1504{
1505 struct sk_buff *skb;
1506 long ret;
1507
1508 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1509 if (IS_ERR(skb)) {
1510 ret = PTR_ERR(skb);
1511 BT_ERR("%s: changing Intel device address failed (%ld)",
1512 hdev->name, ret);
1513 return ret;
1514 }
1515 kfree_skb(skb);
1516
1517 return 0;
1518}
1519
ae8df494
AK		 1520static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1521 const bdaddr_t *bdaddr)
1522{
1523 struct sk_buff *skb;
1524 u8 buf[8];
1525 long ret;
1526
1527 buf[0] = 0xfe;
1528 buf[1] = sizeof(bdaddr_t);
1529 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1530
1531 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1532 if (IS_ERR(skb)) {
1533 ret = PTR_ERR(skb);
1534 BT_ERR("%s: changing Marvell device address failed (%ld)",
1535 hdev->name, ret);
1536 return ret;
1537 }
1538 kfree_skb(skb);
1539
1540 return 0;
1541}
1542
c8abb73f
MH		 1543#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1544
10d4c673
PG		 1545static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1546{
1547 struct btusb_data *data = hci_get_drvdata(hdev);
1548 struct usb_device *udev = data->udev;
1549 char fw_name[64];
1550 const struct firmware *fw;
1551 const u8 *fw_ptr;
1552 size_t fw_size;
1553 const struct hci_command_hdr *cmd;
1554 const u8 *cmd_param;
1555 u16 opcode;
1556 struct sk_buff *skb;
1557 struct hci_rp_read_local_version *ver;
c8abb73f 1558 struct hci_rp_read_bd_addr *bda;
10d4c673
PG		 1559 long ret;
1560
1561 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1562 udev->product ? udev->product : "BCM",
1563 le16_to_cpu(udev->descriptor.idVendor),
1564 le16_to_cpu(udev->descriptor.idProduct));
1565
1566 ret = request_firmware(&fw, fw_name, &hdev->dev);
1567 if (ret < 0) {
c8abb73f 1568 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
10d4c673
PG		 1569 return 0;
1570 }
1571
1572 /* Reset */
1573 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1574 if (IS_ERR(skb)) {
1575 ret = PTR_ERR(skb);
1576 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1577 goto done;
1578 }
1579 kfree_skb(skb);
1580
1581 /* Read Local Version Info */
1582 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1583 HCI_INIT_TIMEOUT);
1584 if (IS_ERR(skb)) {
1585 ret = PTR_ERR(skb);
1586 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1587 hdev->name, ret);
1588 goto done;
1589 }
1590
1591 if (skb->len != sizeof(*ver)) {
1592 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1593 hdev->name);
1594 kfree_skb(skb);
1595 ret = -EIO;
1596 goto done;
1597 }
1598
1599 ver = (struct hci_rp_read_local_version *) skb->data;
1600 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1601 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1602 ver->lmp_ver, ver->lmp_subver);
1603 kfree_skb(skb);
1604
1605 /* Start Download */
1606 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1607 if (IS_ERR(skb)) {
1608 ret = PTR_ERR(skb);
1609 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
1610 hdev->name, ret);
1611 goto reset_fw;
1612 }
1613 kfree_skb(skb);
1614
1615 /* 50 msec delay after Download Minidrv completes */
1616 msleep(50);
1617
1618 fw_ptr = fw->data;
1619 fw_size = fw->size;
1620
1621 while (fw_size >= sizeof(*cmd)) {
1622 cmd = (struct hci_command_hdr *) fw_ptr;
1623 fw_ptr += sizeof(*cmd);
1624 fw_size -= sizeof(*cmd);
1625
1626 if (fw_size < cmd->plen) {
1627 BT_ERR("%s: BCM: patch %s is corrupted",
1628 hdev->name, fw_name);
1629 ret = -EINVAL;
1630 goto reset_fw;
1631 }
1632
1633 cmd_param = fw_ptr;
1634 fw_ptr += cmd->plen;
1635 fw_size -= cmd->plen;
1636
1637 opcode = le16_to_cpu(cmd->opcode);
1638
1639 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1640 HCI_INIT_TIMEOUT);
1641 if (IS_ERR(skb)) {
1642 ret = PTR_ERR(skb);
1643 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
1644 hdev->name, opcode, ret);
1645 goto reset_fw;
1646 }
1647 kfree_skb(skb);
1648 }
1649
1650 /* 250 msec delay after Launch Ram completes */
1651 msleep(250);
1652
1653reset_fw:
1654 /* Reset */
1655 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1656 if (IS_ERR(skb)) {
1657 ret = PTR_ERR(skb);
1658 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1659 goto done;
1660 }
1661 kfree_skb(skb);
1662
1663 /* Read Local Version Info */
1664 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1665 HCI_INIT_TIMEOUT);
1666 if (IS_ERR(skb)) {
1667 ret = PTR_ERR(skb);
1668 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1669 hdev->name, ret);
1670 goto done;
1671 }
1672
1673 if (skb->len != sizeof(*ver)) {
1674 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1675 hdev->name);
1676 kfree_skb(skb);
1677 ret = -EIO;
1678 goto done;
1679 }
1680
1681 ver = (struct hci_rp_read_local_version *) skb->data;
1682 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1683 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1684 ver->lmp_ver, ver->lmp_subver);
1685 kfree_skb(skb);
1686
c8abb73f
MH		 1687 /* Read BD Address */
1688 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1689 HCI_INIT_TIMEOUT);
1690 if (IS_ERR(skb)) {
1691 ret = PTR_ERR(skb);
1692 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
1693 hdev->name, ret);
1694 goto done;
1695 }
1696
1697 if (skb->len != sizeof(*bda)) {
1698 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
1699 hdev->name);
1700 kfree_skb(skb);
1701 ret = -EIO;
1702 goto done;
1703 }
1704
1705 bda = (struct hci_rp_read_bd_addr *) skb->data;
1706 if (bda->status) {
1707 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1708 hdev->name, bda->status);
1709 kfree_skb(skb);
1710 ret = -bt_to_errno(bda->status);
1711 goto done;
1712 }
1713
1714 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1715 * with no configured address.
1716 */
849e5086 1717 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
c8abb73f
MH		 1718 BT_INFO("%s: BCM: using default device address (%pMR)",
1719 hdev->name, &bda->bdaddr);
849e5086
MH		 1720 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1721 }
c8abb73f
MH		 1722
1723 kfree_skb(skb);
1724
10d4c673
PG		 1725done:
1726 release_firmware(fw);
1727
1728 return ret;
1729}
1730
abbaf50e
MH		 1731static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1732{
1733 struct sk_buff *skb;
1734 long ret;
1735
1736 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1737 if (IS_ERR(skb)) {
1738 ret = PTR_ERR(skb);
1739 BT_ERR("%s: BCM: Change address command failed (%ld)",
1740 hdev->name, ret);
1741 return ret;
1742 }
1743 kfree_skb(skb);
1744
1745 return 0;
1746}
1747
5e23b923
MH		 1748static int btusb_probe(struct usb_interface *intf,
1749 const struct usb_device_id *id)
1750{
1751 struct usb_endpoint_descriptor *ep_desc;
1752 struct btusb_data *data;
1753 struct hci_dev *hdev;
1754 int i, err;
1755
1756 BT_DBG("intf %p id %p", intf, id);
1757
cfeb4145 1758 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 1759 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1760 return -ENODEV;
1761
1762 if (!id->driver_info) {
1763 const struct usb_device_id *match;
1764 match = usb_match_id(intf, blacklist_table);
1765 if (match)
1766 id = match;
1767 }
1768
cfeb4145
MH		 1769 if (id->driver_info == BTUSB_IGNORE)
1770 return -ENODEV;
1771
2d25f8b4
SL		 1772 if (id->driver_info & BTUSB_ATH3012) {
1773 struct usb_device *udev = interface_to_usbdev(intf);
1774
1775 /* Old firmware would otherwise let ath3k driver load
1776 * patch and sysconfig files */
1777 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1778 return -ENODEV;
1779 }
1780
98921dbd 1781 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 1782 if (!data)
1783 return -ENOMEM;
1784
1785 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1786 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1787
1788 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1789 data->intr_ep = ep_desc;
1790 continue;
1791 }
1792
1793 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1794 data->bulk_tx_ep = ep_desc;
1795 continue;
1796 }
1797
1798 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1799 data->bulk_rx_ep = ep_desc;
1800 continue;
1801 }
1802 }
1803
98921dbd 1804 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 1805 return -ENODEV;
5e23b923 1806
7a9d4020
MH		 1807 data->cmdreq_type = USB_TYPE_CLASS;
1808
5e23b923 1809 data->udev = interface_to_usbdev(intf);
5fbcd260 1810 data->intf = intf;
5e23b923
MH		 1811
1812 spin_lock_init(&data->lock);
1813
1814 INIT_WORK(&data->work, btusb_work);
7bee549e
ON		 1815 INIT_WORK(&data->waker, btusb_waker);
1816 spin_lock_init(&data->txlock);
5e23b923
MH		 1817
1818 init_usb_anchor(&data->tx_anchor);
1819 init_usb_anchor(&data->intr_anchor);
1820 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 1821 init_usb_anchor(&data->isoc_anchor);
7bee549e 1822 init_usb_anchor(&data->deferred);
5e23b923
MH		 1823
1824 hdev = hci_alloc_dev();
98921dbd 1825 if (!hdev)
5e23b923 1826 return -ENOMEM;
5e23b923 1827
c13854ce 1828 hdev->bus = HCI_USB;
155961e8 1829 hci_set_drvdata(hdev, data);
5e23b923
MH		 1830
1831 data->hdev = hdev;
1832
1833 SET_HCIDEV_DEV(hdev, &intf->dev);
1834
9f8f962c
MH		 1835 hdev->open = btusb_open;
1836 hdev->close = btusb_close;
1837 hdev->flush = btusb_flush;
1838 hdev->send = btusb_send_frame;
1839 hdev->notify = btusb_notify;
1840
1841 if (id->driver_info & BTUSB_BCM92035)
1842 hdev->setup = btusb_setup_bcm92035;
5e23b923 1843
abbaf50e 1844 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
10d4c673 1845 hdev->setup = btusb_setup_bcm_patchram;
abbaf50e
MH		 1846 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
1847 }
10d4c673 1848
cb8d6597 1849 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 1850 hdev->setup = btusb_setup_intel;
cb8d6597
MH		 1851 hdev->set_bdaddr = btusb_set_bdaddr_intel;
1852 }
dffd30ee 1853
ae8df494
AK		 1854 if (id->driver_info & BTUSB_MARVELL)
1855 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
1856
40df783d
MH		 1857 if (id->driver_info & BTUSB_INTEL_BOOT)
1858 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1859
7a9d4020 1860 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 1861 data->isoc = usb_ifnum_to_if(data->udev, 1);
1862
7a9d4020 1863 if (!reset)
a6c511c6 1864 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 1865
1866 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1867 if (!disable_scofix)
1868 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1869 }
1870
9bfa35fe
MH		 1871 if (id->driver_info & BTUSB_BROKEN_ISOC)
1872 data->isoc = NULL;
1873
7a9d4020
MH		 1874 if (id->driver_info & BTUSB_DIGIANSWER) {
1875 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 1876 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 1877 }
1878
1879 if (id->driver_info & BTUSB_CSR) {
1880 struct usb_device *udev = data->udev;
81cac64b 1881 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 1882
1883 /* Old firmware would otherwise execute USB reset */
81cac64b 1884 if (bcdDevice < 0x117)
a6c511c6 1885 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 1886
1887 /* Fake CSR devices with broken commands */
1888 if (bcdDevice <= 0x100)
1889 hdev->setup = btusb_setup_csr;
7a9d4020
MH		 1890 }
1891
cfeb4145 1892 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 1893 struct usb_device *udev = data->udev;
cfeb4145 1894
7a9d4020 1895 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 1896 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1897 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1898 }
1899
3a5ef20c
MH		 1900 if (id->driver_info & BTUSB_INTEL_BOOT) {
1901 /* A bug in the bootloader causes that interrupt interface is
1902 * only enabled after receiving SetInterface(0, AltSetting=0).
1903 */
1904 err = usb_set_interface(data->udev, 0, 0);
1905 if (err < 0) {
1906 BT_ERR("failed to set interface 0, alt 0 %d", err);
1907 hci_free_dev(hdev);
1908 return err;
1909 }
1910 }
1911
9bfa35fe
MH		 1912 if (data->isoc) {
1913 err = usb_driver_claim_interface(&btusb_driver,
5fbcd260 1914 data->isoc, data);
9bfa35fe
MH		 1915 if (err < 0) {
1916 hci_free_dev(hdev);
9bfa35fe
MH		 1917 return err;
1918 }
1919 }
1920
5e23b923
MH		 1921 err = hci_register_dev(hdev);
1922 if (err < 0) {
1923 hci_free_dev(hdev);
5e23b923
MH		 1924 return err;
1925 }
1926
1927 usb_set_intfdata(intf, data);
1928
1929 return 0;
1930}
1931
1932static void btusb_disconnect(struct usb_interface *intf)
1933{
1934 struct btusb_data *data = usb_get_intfdata(intf);
1935 struct hci_dev *hdev;
1936
1937 BT_DBG("intf %p", intf);
1938
1939 if (!data)
1940 return;
1941
1942 hdev = data->hdev;
5fbcd260
MH		 1943 usb_set_intfdata(data->intf, NULL);
1944
1945 if (data->isoc)
1946 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 1947
1948 hci_unregister_dev(hdev);
1949
5fbcd260
MH		 1950 if (intf == data->isoc)
1951 usb_driver_release_interface(&btusb_driver, data->intf);
1952 else if (data->isoc)
1953 usb_driver_release_interface(&btusb_driver, data->isoc);
1954
5e23b923
MH		 1955 hci_free_dev(hdev);
1956}
1957
7bee549e 1958#ifdef CONFIG_PM
6a88adf2
MH		 1959static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1960{
1961 struct btusb_data *data = usb_get_intfdata(intf);
1962
1963 BT_DBG("intf %p", intf);
1964
1965 if (data->suspend_count++)
1966 return 0;
1967
7bee549e 1968 spin_lock_irq(&data->txlock);
5b1b0b81 1969 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 1970 set_bit(BTUSB_SUSPENDING, &data->flags);
1971 spin_unlock_irq(&data->txlock);
1972 } else {
1973 spin_unlock_irq(&data->txlock);
1974 data->suspend_count--;
1975 return -EBUSY;
1976 }
1977
6a88adf2
MH		 1978 cancel_work_sync(&data->work);
1979
7bee549e 1980 btusb_stop_traffic(data);
6a88adf2
MH		 1981 usb_kill_anchored_urbs(&data->tx_anchor);
1982
6a88adf2
MH		 1983 return 0;
1984}
1985
7bee549e
ON		 1986static void play_deferred(struct btusb_data *data)
1987{
1988 struct urb *urb;
1989 int err;
1990
1991 while ((urb = usb_get_from_anchor(&data->deferred))) {
1992 err = usb_submit_urb(urb, GFP_ATOMIC);
1993 if (err < 0)
1994 break;
1995
1996 data->tx_in_flight++;
1997 }
1998 usb_scuttle_anchored_urbs(&data->deferred);
1999}
2000
6a88adf2
MH		 2001static int btusb_resume(struct usb_interface *intf)
2002{
2003 struct btusb_data *data = usb_get_intfdata(intf);
2004 struct hci_dev *hdev = data->hdev;
7bee549e 2005 int err = 0;
6a88adf2
MH		 2006
2007 BT_DBG("intf %p", intf);
2008
2009 if (--data->suspend_count)
2010 return 0;
2011
2012 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2013 goto done;
6a88adf2
MH		 2014
2015 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2016 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2017 if (err < 0) {
2018 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2019 goto failed;
6a88adf2
MH		 2020 }
2021 }
2022
2023 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2024 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2025 if (err < 0) {
6a88adf2 2026 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2027 goto failed;
2028 }
2029
2030 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2031 }
2032
2033 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2034 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2035 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2036 else
2037 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2038 }
2039
7bee549e
ON		 2040 spin_lock_irq(&data->txlock);
2041 play_deferred(data);
2042 clear_bit(BTUSB_SUSPENDING, &data->flags);
2043 spin_unlock_irq(&data->txlock);
2044 schedule_work(&data->work);
2045
6a88adf2 2046 return 0;
7bee549e
ON		 2047
2048failed:
2049 usb_scuttle_anchored_urbs(&data->deferred);
2050done:
2051 spin_lock_irq(&data->txlock);
2052 clear_bit(BTUSB_SUSPENDING, &data->flags);
2053 spin_unlock_irq(&data->txlock);
2054
2055 return err;
6a88adf2 2056}
7bee549e 2057#endif
6a88adf2 2058
5e23b923
MH		 2059static struct usb_driver btusb_driver = {
2060 .name = "btusb",
2061 .probe = btusb_probe,
2062 .disconnect = btusb_disconnect,
7bee549e 2063#ifdef CONFIG_PM
6a88adf2
MH		 2064 .suspend = btusb_suspend,
2065 .resume = btusb_resume,
7bee549e 2066#endif
5e23b923 2067 .id_table = btusb_table,
7bee549e 2068 .supports_autosuspend = 1,
e1f12eb6 2069 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2070};
2071
93f1508c 2072module_usb_driver(btusb_driver);
5e23b923 2073
cfeb4145
MH		 2074module_param(disable_scofix, bool, 0644);
2075MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2076
2077module_param(force_scofix, bool, 0644);
2078MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2079
2080module_param(reset, bool, 0644);
2081MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2082
5e23b923
MH		 2083MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2084MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2085MODULE_VERSION(VERSION);
2086MODULE_LICENSE("GPL");
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git