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Marcel Holtmann5e23b922007-10-20 14:12:34 +02001/*
2 *
3 * Generic Bluetooth USB driver
4 *
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02005 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
Marcel Holtmann5e23b922007-10-20 14:12:34 +02006 *
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
Marcel Holtmann5e23b922007-10-20 14:12:34 +020024#include <linux/module.h>
Marcel Holtmann5e23b922007-10-20 14:12:34 +020025#include <linux/usb.h>
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -070026#include <linux/firmware.h>
Marcel Holtmann5e23b922007-10-20 14:12:34 +020027
28#include <net/bluetooth/bluetooth.h>
29#include <net/bluetooth/hci_core.h>
30
Oliver Neukum7bee5492009-08-24 23:44:59 +020031#define VERSION "0.6"
Marcel Holtmanncfeb4142008-08-07 22:26:56 +020032
Rusty Russell90ab5ee2012-01-13 09:32:20 +103033static bool ignore_dga;
34static bool ignore_csr;
35static bool ignore_sniffer;
36static bool disable_scofix;
37static bool force_scofix;
Marcel Holtmann7a9d4022008-11-30 12:17:26 +010038
Rusty Russell90ab5ee2012-01-13 09:32:20 +103039static bool reset = 1;
Marcel Holtmanncfeb4142008-08-07 22:26:56 +020040
41static struct usb_driver btusb_driver;
42
43#define BTUSB_IGNORE 0x01
Marcel Holtmann7a9d4022008-11-30 12:17:26 +010044#define BTUSB_DIGIANSWER 0x02
45#define BTUSB_CSR 0x04
46#define BTUSB_SNIFFER 0x08
47#define BTUSB_BCM92035 0x10
48#define BTUSB_BROKEN_ISOC 0x20
49#define BTUSB_WRONG_SCO_MTU 0x40
Steven.Li2d25f8b2011-07-01 14:02:36 +080050#define BTUSB_ATH3012 0x80
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -070051#define BTUSB_INTEL 0x100
Marcel Holtmann5e23b922007-10-20 14:12:34 +020052
53static struct usb_device_id btusb_table[] = {
54 /* Generic Bluetooth USB device */
55 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
56
Henrik Rydberg1fa65352012-08-25 19:28:06 +020057 /* Apple-specific (Broadcom) devices */
58 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
59
Cho, Yu-Chenc5197742013-06-04 21:40:26 +080060 /* MediaTek MT76x0E */
61 { USB_DEVICE(0x0e8d, 0x763f) },
62
Oliver Neukumc510eae2011-09-21 11:41:45 +020063 /* Broadcom SoftSailing reporting vendor specific */
Don Zickus2e8b50632012-03-28 16:41:11 -040064 { USB_DEVICE(0x0a5c, 0x21e1) },
Oliver Neukumc510eae2011-09-21 11:41:45 +020065
Nobuhiro Iwamatsu3cd01972010-08-20 16:24:07 +090066 /* Apple MacBookPro 7,1 */
67 { USB_DEVICE(0x05ac, 0x8213) },
68
Cyril Lacoux0a79f672010-07-14 10:29:27 +040069 /* Apple iMac11,1 */
70 { USB_DEVICE(0x05ac, 0x8215) },
71
Nobuhiro Iwamatsu9c047152010-08-20 16:24:06 +090072 /* Apple MacBookPro6,2 */
73 { USB_DEVICE(0x05ac, 0x8218) },
74
Edgar (gimli) Hucek3e3ede72010-11-04 08:04:33 +010075 /* Apple MacBookAir3,1, MacBookAir3,2 */
76 { USB_DEVICE(0x05ac, 0x821b) },
77
Pieter-Augustijn Van Malleghema63b7232011-09-07 02:28:10 -040078 /* Apple MacBookAir4,1 */
79 { USB_DEVICE(0x05ac, 0x821f) },
80
Marc-Antoine Perennou88d377b2011-03-24 14:51:21 -030081 /* Apple MacBookPro8,2 */
82 { USB_DEVICE(0x05ac, 0x821a) },
83
Jurgen Kramerf78b68262011-09-04 18:01:42 +020084 /* Apple MacMini5,1 */
85 { USB_DEVICE(0x05ac, 0x8281) },
86
Marcel Holtmanncfeb4142008-08-07 22:26:56 +020087 /* 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 */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100101 { USB_DEVICE(0x0c10, 0x0000) },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200102
Wen-chien Jesse Sungd13431c2011-11-08 14:30:22 +0800103 /* Broadcom BCM20702A0 */
Jeff Cook1ee3ff62012-11-09 16:39:48 -0700104 { USB_DEVICE(0x0b05, 0x17b5) },
Jaroslav Resler0c1abbd2012-09-11 17:25:32 +0800105 { USB_DEVICE(0x04ca, 0x2003) },
Manoj Iyer79cd7602012-04-09 09:22:28 -0500106 { USB_DEVICE(0x0489, 0xe042) },
Wen-chien Jesse Sungd13431c2011-11-08 14:30:22 +0800107 { USB_DEVICE(0x413c, 0x8197) },
108
Steven Harms98514032012-04-13 14:45:55 -0400109 /* Foxconn - Hon Hai */
Gustavo Padovanee664012012-08-15 01:38:11 -0300110 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
Steven Harms98514032012-04-13 14:45:55 -0400111
Gustavo Padovan92c385f2012-08-06 15:36:49 -0300112 /*Broadcom devices with vendor specific id */
113 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
114
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200115 { } /* Terminating entry */
116};
117
118MODULE_DEVICE_TABLE(usb, btusb_table);
119
120static struct usb_device_id blacklist_table[] = {
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200121 /* CSR BlueCore devices */
122 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
123
124 /* Broadcom BCM2033 without firmware */
125 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
126
Bala Shanmugambe931122010-11-26 17:35:46 +0530127 /* Atheros 3011 with sflash firmware */
128 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
Marek Vasut6eda5412012-06-08 14:32:50 +0200129 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
Andy Ross2a7bccc2011-05-09 16:11:16 -0700130 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
Ricardo Mendoza8e7c3d22011-07-13 16:04:29 +0100131 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
Keng-Yu Lin6b6ba882011-11-30 18:32:37 +0800132 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
Marcos Chaparroacd94542012-11-06 16:19:11 -0300133 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
Bala Shanmugambe931122010-11-26 17:35:46 +0530134
Cho, Yu-Chen509e7862011-01-26 17:10:59 +0800135 /* Atheros AR9285 Malbec with sflash firmware */
136 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
137
Bala Shanmugamd9f51b52011-02-11 15:38:53 +0530138 /* Atheros 3012 with sflash firmware */
Ming Leid66629c2013-03-15 11:00:39 +0800139 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
Steven.Li2d25f8b2011-07-01 14:02:36 +0800140 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
Sunguk Lee94a32d102013-03-12 04:41:58 +0900141 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
Cho, Yu-Chen07c0ea82012-03-14 22:01:21 +0200142 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
Ming Leiebaf5792013-03-18 23:45:11 +0800143 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
Eran9498ba72011-12-05 22:15:29 +0000144 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
Josh Boyer3f63c342013-02-19 11:54:16 -0500145 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
AceLan Kao55ed7d42012-03-28 10:25:36 +0800146 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
Daniel Schaal2c262b22012-12-29 11:14:34 +0100147 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
Sergio Cambraf4d6f7d2013-01-10 01:06:55 +0100148 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
AceLan Kao87522a42012-04-13 17:39:57 +0800149 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
AceLan Kaoac713112012-04-19 14:53:45 +0800150 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
Peng Chen877ed5f2013-08-30 17:41:40 +0800151 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
Giancarlo Formicuccia6c4ae5c2012-06-10 08:33:11 +0200152 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
Peng Chen2096ae62012-08-01 10:11:59 +0800153 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
AceLan Kaoeed307e2012-12-11 11:41:20 +0800154 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
AceLan Kao3a61eda2013-01-03 12:24:59 +0800155 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
AceLan Kao2582d522013-01-03 12:25:00 +0800156 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
Noguchi Kazutosi0fc110f2013-03-24 23:41:10 +0900157 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
Thomas Loo4008b2c2013-07-03 02:53:54 +0200158 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
Sujith Manoharan44c41272013-07-15 09:29:03 +0530159 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
AceLan Kaodf235042013-07-17 11:27:40 +0800160 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
AceLan Kaoeba6a132013-06-20 13:38:45 +0800161 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
Bala Shanmugamd9f51b52011-02-11 15:38:53 +0530162
Cho, Yu-Chene9036e32011-02-15 10:20:07 +0800163 /* Atheros AR5BBU12 with sflash firmware */
164 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
165
Michael Gruetzner85d59722012-05-02 22:33:40 +0200166 /* Atheros AR5BBU12 with sflash firmware */
167 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
Yevgeniy Melnichukbc21fde2012-08-07 19:48:10 +0530168 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
Michael Gruetzner85d59722012-05-02 22:33:40 +0200169
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200170 /* Broadcom BCM2035 */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100171 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
172 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
173 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200174
175 /* Broadcom BCM2045 */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100176 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
177 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmannbdbef3d2008-09-23 00:16:35 +0200178
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200179 /* IBM/Lenovo ThinkPad with Broadcom chip */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100180 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
181 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200182
183 /* HP laptop with Broadcom chip */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100184 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200185
186 /* Dell laptop with Broadcom chip */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100187 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200188
Marcel Holtmann5ddd4a62008-11-30 12:17:27 +0100189 /* Dell Wireless 370 and 410 devices */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100190 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmann5ddd4a62008-11-30 12:17:27 +0100191 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200192
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100193 /* Belkin F8T012 and F8T013 devices */
194 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
195 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200196
Marcel Holtmann5ddd4a62008-11-30 12:17:27 +0100197 /* Asus WL-BTD202 device */
198 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
199
200 /* Kensington Bluetooth USB adapter */
201 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
202
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200203 /* RTX Telecom based adapters with buggy SCO support */
204 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
205 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
206
207 /* CONWISE Technology based adapters with buggy SCO support */
208 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
209
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200210 /* Digianswer devices */
211 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
212 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
213
214 /* CSR BlueCore Bluetooth Sniffer */
215 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
216
217 /* Frontline ComProbe Bluetooth Sniffer */
218 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
219
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -0700220 /* Intel Bluetooth device */
221 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
222
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200223 { } /* Terminating entry */
224};
225
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200226#define BTUSB_MAX_ISOC_FRAMES 10
227
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200228#define BTUSB_INTR_RUNNING 0
229#define BTUSB_BULK_RUNNING 1
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200230#define BTUSB_ISOC_RUNNING 2
Oliver Neukum7bee5492009-08-24 23:44:59 +0200231#define BTUSB_SUSPENDING 3
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300232#define BTUSB_DID_ISO_RESUME 4
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200233
234struct btusb_data {
235 struct hci_dev *hdev;
236 struct usb_device *udev;
Marcel Holtmann5fbcd262008-09-23 00:16:36 +0200237 struct usb_interface *intf;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200238 struct usb_interface *isoc;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200239
240 spinlock_t lock;
241
242 unsigned long flags;
243
244 struct work_struct work;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200245 struct work_struct waker;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200246
247 struct usb_anchor tx_anchor;
248 struct usb_anchor intr_anchor;
249 struct usb_anchor bulk_anchor;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200250 struct usb_anchor isoc_anchor;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200251 struct usb_anchor deferred;
252 int tx_in_flight;
253 spinlock_t txlock;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200254
255 struct usb_endpoint_descriptor *intr_ep;
256 struct usb_endpoint_descriptor *bulk_tx_ep;
257 struct usb_endpoint_descriptor *bulk_rx_ep;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200258 struct usb_endpoint_descriptor *isoc_tx_ep;
259 struct usb_endpoint_descriptor *isoc_rx_ep;
260
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100261 __u8 cmdreq_type;
262
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100263 unsigned int sco_num;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200264 int isoc_altsetting;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +0100265 int suspend_count;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200266};
267
Oliver Neukum7bee5492009-08-24 23:44:59 +0200268static int inc_tx(struct btusb_data *data)
269{
270 unsigned long flags;
271 int rv;
272
273 spin_lock_irqsave(&data->txlock, flags);
274 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
275 if (!rv)
276 data->tx_in_flight++;
277 spin_unlock_irqrestore(&data->txlock, flags);
278
279 return rv;
280}
281
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200282static void btusb_intr_complete(struct urb *urb)
283{
284 struct hci_dev *hdev = urb->context;
David Herrmann155961e2012-02-09 21:58:32 +0100285 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200286 int err;
287
288 BT_DBG("%s urb %p status %d count %d", hdev->name,
289 urb, urb->status, urb->actual_length);
290
291 if (!test_bit(HCI_RUNNING, &hdev->flags))
292 return;
293
294 if (urb->status == 0) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200295 hdev->stat.byte_rx += urb->actual_length;
296
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200297 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
298 urb->transfer_buffer,
299 urb->actual_length) < 0) {
300 BT_ERR("%s corrupted event packet", hdev->name);
301 hdev->stat.err_rx++;
302 }
303 }
304
305 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
306 return;
307
Oliver Neukum7bee5492009-08-24 23:44:59 +0200308 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200309 usb_anchor_urb(urb, &data->intr_anchor);
310
311 err = usb_submit_urb(urb, GFP_ATOMIC);
312 if (err < 0) {
Paul Bolle4935f1c2011-08-09 17:16:28 +0200313 /* -EPERM: urb is being killed;
314 * -ENODEV: device got disconnected */
315 if (err != -EPERM && err != -ENODEV)
Stefan Seyfried61faddf2010-11-30 21:49:08 +0100316 BT_ERR("%s urb %p failed to resubmit (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200317 hdev->name, urb, -err);
318 usb_unanchor_urb(urb);
319 }
320}
321
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100322static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200323{
David Herrmann155961e2012-02-09 21:58:32 +0100324 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200325 struct urb *urb;
326 unsigned char *buf;
327 unsigned int pipe;
328 int err, size;
329
330 BT_DBG("%s", hdev->name);
331
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200332 if (!data->intr_ep)
333 return -ENODEV;
334
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100335 urb = usb_alloc_urb(0, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200336 if (!urb)
337 return -ENOMEM;
338
339 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
340
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100341 buf = kmalloc(size, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200342 if (!buf) {
343 usb_free_urb(urb);
344 return -ENOMEM;
345 }
346
347 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
348
349 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
350 btusb_intr_complete, hdev,
351 data->intr_ep->bInterval);
352
353 urb->transfer_flags |= URB_FREE_BUFFER;
354
355 usb_anchor_urb(urb, &data->intr_anchor);
356
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100357 err = usb_submit_urb(urb, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200358 if (err < 0) {
Paul Bolled4b8d1c2011-10-09 12:12:22 +0200359 if (err != -EPERM && err != -ENODEV)
360 BT_ERR("%s urb %p submission failed (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200361 hdev->name, urb, -err);
362 usb_unanchor_urb(urb);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200363 }
364
365 usb_free_urb(urb);
366
367 return err;
368}
369
370static void btusb_bulk_complete(struct urb *urb)
371{
372 struct hci_dev *hdev = urb->context;
David Herrmann155961e2012-02-09 21:58:32 +0100373 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200374 int err;
375
376 BT_DBG("%s urb %p status %d count %d", hdev->name,
377 urb, urb->status, urb->actual_length);
378
379 if (!test_bit(HCI_RUNNING, &hdev->flags))
380 return;
381
382 if (urb->status == 0) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200383 hdev->stat.byte_rx += urb->actual_length;
384
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200385 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
386 urb->transfer_buffer,
387 urb->actual_length) < 0) {
388 BT_ERR("%s corrupted ACL packet", hdev->name);
389 hdev->stat.err_rx++;
390 }
391 }
392
393 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
394 return;
395
396 usb_anchor_urb(urb, &data->bulk_anchor);
Oliver Neukum652fd782009-12-16 19:23:43 +0100397 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200398
399 err = usb_submit_urb(urb, GFP_ATOMIC);
400 if (err < 0) {
Paul Bolle4935f1c2011-08-09 17:16:28 +0200401 /* -EPERM: urb is being killed;
402 * -ENODEV: device got disconnected */
403 if (err != -EPERM && err != -ENODEV)
Stefan Seyfried61faddf2010-11-30 21:49:08 +0100404 BT_ERR("%s urb %p failed to resubmit (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200405 hdev->name, urb, -err);
406 usb_unanchor_urb(urb);
407 }
408}
409
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100410static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200411{
David Herrmann155961e2012-02-09 21:58:32 +0100412 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200413 struct urb *urb;
414 unsigned char *buf;
415 unsigned int pipe;
Vikram Kandukuri290ba202009-07-02 14:31:59 +0530416 int err, size = HCI_MAX_FRAME_SIZE;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200417
418 BT_DBG("%s", hdev->name);
419
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200420 if (!data->bulk_rx_ep)
421 return -ENODEV;
422
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100423 urb = usb_alloc_urb(0, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200424 if (!urb)
425 return -ENOMEM;
426
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100427 buf = kmalloc(size, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200428 if (!buf) {
429 usb_free_urb(urb);
430 return -ENOMEM;
431 }
432
433 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
434
435 usb_fill_bulk_urb(urb, data->udev, pipe,
436 buf, size, btusb_bulk_complete, hdev);
437
438 urb->transfer_flags |= URB_FREE_BUFFER;
439
Oliver Neukum7bee5492009-08-24 23:44:59 +0200440 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200441 usb_anchor_urb(urb, &data->bulk_anchor);
442
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100443 err = usb_submit_urb(urb, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200444 if (err < 0) {
Paul Bolled4b8d1c2011-10-09 12:12:22 +0200445 if (err != -EPERM && err != -ENODEV)
446 BT_ERR("%s urb %p submission failed (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200447 hdev->name, urb, -err);
448 usb_unanchor_urb(urb);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200449 }
450
451 usb_free_urb(urb);
452
453 return err;
454}
455
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200456static void btusb_isoc_complete(struct urb *urb)
457{
458 struct hci_dev *hdev = urb->context;
David Herrmann155961e2012-02-09 21:58:32 +0100459 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200460 int i, err;
461
462 BT_DBG("%s urb %p status %d count %d", hdev->name,
463 urb, urb->status, urb->actual_length);
464
465 if (!test_bit(HCI_RUNNING, &hdev->flags))
466 return;
467
468 if (urb->status == 0) {
469 for (i = 0; i < urb->number_of_packets; i++) {
470 unsigned int offset = urb->iso_frame_desc[i].offset;
471 unsigned int length = urb->iso_frame_desc[i].actual_length;
472
473 if (urb->iso_frame_desc[i].status)
474 continue;
475
476 hdev->stat.byte_rx += length;
477
478 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
479 urb->transfer_buffer + offset,
480 length) < 0) {
481 BT_ERR("%s corrupted SCO packet", hdev->name);
482 hdev->stat.err_rx++;
483 }
484 }
485 }
486
487 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
488 return;
489
490 usb_anchor_urb(urb, &data->isoc_anchor);
491
492 err = usb_submit_urb(urb, GFP_ATOMIC);
493 if (err < 0) {
Paul Bolle4935f1c2011-08-09 17:16:28 +0200494 /* -EPERM: urb is being killed;
495 * -ENODEV: device got disconnected */
496 if (err != -EPERM && err != -ENODEV)
Stefan Seyfried61faddf2010-11-30 21:49:08 +0100497 BT_ERR("%s urb %p failed to resubmit (%d)",
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200498 hdev->name, urb, -err);
499 usb_unanchor_urb(urb);
500 }
501}
502
Jesper Juhl42b16b32011-01-17 00:09:38 +0100503static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200504{
505 int i, offset = 0;
506
507 BT_DBG("len %d mtu %d", len, mtu);
508
509 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
510 i++, offset += mtu, len -= mtu) {
511 urb->iso_frame_desc[i].offset = offset;
512 urb->iso_frame_desc[i].length = mtu;
513 }
514
515 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
516 urb->iso_frame_desc[i].offset = offset;
517 urb->iso_frame_desc[i].length = len;
518 i++;
519 }
520
521 urb->number_of_packets = i;
522}
523
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100524static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200525{
David Herrmann155961e2012-02-09 21:58:32 +0100526 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200527 struct urb *urb;
528 unsigned char *buf;
529 unsigned int pipe;
530 int err, size;
531
532 BT_DBG("%s", hdev->name);
533
534 if (!data->isoc_rx_ep)
535 return -ENODEV;
536
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100537 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200538 if (!urb)
539 return -ENOMEM;
540
541 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
542 BTUSB_MAX_ISOC_FRAMES;
543
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100544 buf = kmalloc(size, mem_flags);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200545 if (!buf) {
546 usb_free_urb(urb);
547 return -ENOMEM;
548 }
549
550 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
551
Bing Zhaofa0fb932011-12-20 18:19:00 -0800552 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
553 hdev, data->isoc_rx_ep->bInterval);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200554
555 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200556
557 __fill_isoc_descriptor(urb, size,
558 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
559
560 usb_anchor_urb(urb, &data->isoc_anchor);
561
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100562 err = usb_submit_urb(urb, mem_flags);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200563 if (err < 0) {
Paul Bolled4b8d1c2011-10-09 12:12:22 +0200564 if (err != -EPERM && err != -ENODEV)
565 BT_ERR("%s urb %p submission failed (%d)",
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200566 hdev->name, urb, -err);
567 usb_unanchor_urb(urb);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200568 }
569
570 usb_free_urb(urb);
571
572 return err;
573}
574
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200575static void btusb_tx_complete(struct urb *urb)
576{
577 struct sk_buff *skb = urb->context;
578 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
David Herrmann155961e2012-02-09 21:58:32 +0100579 struct btusb_data *data = hci_get_drvdata(hdev);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200580
581 BT_DBG("%s urb %p status %d count %d", hdev->name,
582 urb, urb->status, urb->actual_length);
583
584 if (!test_bit(HCI_RUNNING, &hdev->flags))
585 goto done;
586
587 if (!urb->status)
588 hdev->stat.byte_tx += urb->transfer_buffer_length;
589 else
590 hdev->stat.err_tx++;
591
592done:
593 spin_lock(&data->txlock);
594 data->tx_in_flight--;
595 spin_unlock(&data->txlock);
596
597 kfree(urb->setup_packet);
598
599 kfree_skb(skb);
600}
601
602static void btusb_isoc_tx_complete(struct urb *urb)
603{
604 struct sk_buff *skb = urb->context;
605 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200606
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 kfree(urb->setup_packet);
620
621 kfree_skb(skb);
622}
623
624static int btusb_open(struct hci_dev *hdev)
625{
David Herrmann155961e2012-02-09 21:58:32 +0100626 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200627 int err;
628
629 BT_DBG("%s", hdev->name);
630
Oliver Neukum7bee5492009-08-24 23:44:59 +0200631 err = usb_autopm_get_interface(data->intf);
632 if (err < 0)
633 return err;
634
635 data->intf->needs_remote_wakeup = 1;
636
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200637 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
Oliver Neukum7bee5492009-08-24 23:44:59 +0200638 goto done;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200639
640 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
Oliver Neukum7bee5492009-08-24 23:44:59 +0200641 goto done;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200642
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100643 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100644 if (err < 0)
645 goto failed;
646
647 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200648 if (err < 0) {
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100649 usb_kill_anchored_urbs(&data->intr_anchor);
650 goto failed;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200651 }
652
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100653 set_bit(BTUSB_BULK_RUNNING, &data->flags);
654 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
655
Oliver Neukum7bee5492009-08-24 23:44:59 +0200656done:
657 usb_autopm_put_interface(data->intf);
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100658 return 0;
659
660failed:
661 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
662 clear_bit(HCI_RUNNING, &hdev->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200663 usb_autopm_put_interface(data->intf);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200664 return err;
665}
666
Oliver Neukum7bee5492009-08-24 23:44:59 +0200667static void btusb_stop_traffic(struct btusb_data *data)
668{
669 usb_kill_anchored_urbs(&data->intr_anchor);
670 usb_kill_anchored_urbs(&data->bulk_anchor);
671 usb_kill_anchored_urbs(&data->isoc_anchor);
672}
673
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200674static int btusb_close(struct hci_dev *hdev)
675{
David Herrmann155961e2012-02-09 21:58:32 +0100676 struct btusb_data *data = hci_get_drvdata(hdev);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200677 int err;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200678
679 BT_DBG("%s", hdev->name);
680
681 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
682 return 0;
683
Marcel Holtmanne8c3c3d2008-09-23 00:16:36 +0200684 cancel_work_sync(&data->work);
Linus Torvalds404291a2009-11-11 13:32:29 -0800685 cancel_work_sync(&data->waker);
Marcel Holtmanne8c3c3d2008-09-23 00:16:36 +0200686
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200687 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200688 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200689 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200690
691 btusb_stop_traffic(data);
692 err = usb_autopm_get_interface(data->intf);
693 if (err < 0)
Oliver Neukum7b8e2c12009-11-13 14:26:23 +0100694 goto failed;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200695
696 data->intf->needs_remote_wakeup = 0;
697 usb_autopm_put_interface(data->intf);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200698
Oliver Neukum7b8e2c12009-11-13 14:26:23 +0100699failed:
700 usb_scuttle_anchored_urbs(&data->deferred);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200701 return 0;
702}
703
704static int btusb_flush(struct hci_dev *hdev)
705{
David Herrmann155961e2012-02-09 21:58:32 +0100706 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200707
708 BT_DBG("%s", hdev->name);
709
710 usb_kill_anchored_urbs(&data->tx_anchor);
711
712 return 0;
713}
714
715static int btusb_send_frame(struct sk_buff *skb)
716{
717 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
David Herrmann155961e2012-02-09 21:58:32 +0100718 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200719 struct usb_ctrlrequest *dr;
720 struct urb *urb;
721 unsigned int pipe;
722 int err;
723
724 BT_DBG("%s", hdev->name);
725
726 if (!test_bit(HCI_RUNNING, &hdev->flags))
727 return -EBUSY;
728
729 switch (bt_cb(skb)->pkt_type) {
730 case HCI_COMMAND_PKT:
731 urb = usb_alloc_urb(0, GFP_ATOMIC);
732 if (!urb)
733 return -ENOMEM;
734
735 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
736 if (!dr) {
737 usb_free_urb(urb);
738 return -ENOMEM;
739 }
740
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100741 dr->bRequestType = data->cmdreq_type;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200742 dr->bRequest = 0;
743 dr->wIndex = 0;
744 dr->wValue = 0;
745 dr->wLength = __cpu_to_le16(skb->len);
746
747 pipe = usb_sndctrlpipe(data->udev, 0x00);
748
749 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
750 skb->data, skb->len, btusb_tx_complete, skb);
751
752 hdev->stat.cmd_tx++;
753 break;
754
755 case HCI_ACLDATA_PKT:
Peter Hurley9fd481e2011-07-14 08:48:32 -0400756 if (!data->bulk_tx_ep)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200757 return -ENODEV;
758
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200759 urb = usb_alloc_urb(0, GFP_ATOMIC);
760 if (!urb)
761 return -ENOMEM;
762
763 pipe = usb_sndbulkpipe(data->udev,
764 data->bulk_tx_ep->bEndpointAddress);
765
766 usb_fill_bulk_urb(urb, data->udev, pipe,
767 skb->data, skb->len, btusb_tx_complete, skb);
768
769 hdev->stat.acl_tx++;
770 break;
771
772 case HCI_SCODATA_PKT:
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200773 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
774 return -ENODEV;
775
776 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
777 if (!urb)
778 return -ENOMEM;
779
780 pipe = usb_sndisocpipe(data->udev,
781 data->isoc_tx_ep->bEndpointAddress);
782
Gustavo F. Padovan03c2d0e2011-02-14 18:53:43 -0300783 usb_fill_int_urb(urb, data->udev, pipe,
784 skb->data, skb->len, btusb_isoc_tx_complete,
785 skb, data->isoc_tx_ep->bInterval);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200786
787 urb->transfer_flags = URB_ISO_ASAP;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200788
789 __fill_isoc_descriptor(urb, skb->len,
790 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
791
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200792 hdev->stat.sco_tx++;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200793 goto skip_waking;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200794
795 default:
796 return -EILSEQ;
797 }
798
Oliver Neukum7bee5492009-08-24 23:44:59 +0200799 err = inc_tx(data);
800 if (err) {
801 usb_anchor_urb(urb, &data->deferred);
802 schedule_work(&data->waker);
803 err = 0;
804 goto done;
805 }
806
807skip_waking:
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200808 usb_anchor_urb(urb, &data->tx_anchor);
809
810 err = usb_submit_urb(urb, GFP_ATOMIC);
811 if (err < 0) {
Paul Bolle5a9b80e2011-10-09 12:12:16 +0200812 if (err != -EPERM && err != -ENODEV)
813 BT_ERR("%s urb %p submission failed (%d)",
814 hdev->name, urb, -err);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200815 kfree(urb->setup_packet);
816 usb_unanchor_urb(urb);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200817 } else {
818 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200819 }
820
Oliver Neukum7bee5492009-08-24 23:44:59 +0200821done:
Cong Wang54a8a792011-11-22 09:32:57 +0800822 usb_free_urb(urb);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200823 return err;
824}
825
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200826static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
827{
David Herrmann155961e2012-02-09 21:58:32 +0100828 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200829
830 BT_DBG("%s evt %d", hdev->name, evt);
831
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100832 if (hdev->conn_hash.sco_num != data->sco_num) {
833 data->sco_num = hdev->conn_hash.sco_num;
834 schedule_work(&data->work);
Marcel Holtmanna780efa2008-11-30 12:17:12 +0100835 }
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200836}
837
Jesper Juhl42b16b32011-01-17 00:09:38 +0100838static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200839{
David Herrmann155961e2012-02-09 21:58:32 +0100840 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200841 struct usb_interface *intf = data->isoc;
842 struct usb_endpoint_descriptor *ep_desc;
843 int i, err;
844
845 if (!data->isoc)
846 return -ENODEV;
847
848 err = usb_set_interface(data->udev, 1, altsetting);
849 if (err < 0) {
850 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
851 return err;
852 }
853
854 data->isoc_altsetting = altsetting;
855
856 data->isoc_tx_ep = NULL;
857 data->isoc_rx_ep = NULL;
858
859 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
860 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
861
862 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
863 data->isoc_tx_ep = ep_desc;
864 continue;
865 }
866
867 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
868 data->isoc_rx_ep = ep_desc;
869 continue;
870 }
871 }
872
873 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
874 BT_ERR("%s invalid SCO descriptors", hdev->name);
875 return -ENODEV;
876 }
877
878 return 0;
879}
880
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200881static void btusb_work(struct work_struct *work)
882{
883 struct btusb_data *data = container_of(work, struct btusb_data, work);
884 struct hci_dev *hdev = data->hdev;
Mikel Astizf4001d22012-04-11 08:48:51 +0200885 int new_alts;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200886 int err;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200887
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200888 if (hdev->conn_hash.sco_num > 0) {
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300889 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
Oliver Neukum8efdd0c2011-02-11 13:00:06 +0100890 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200891 if (err < 0) {
892 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
893 usb_kill_anchored_urbs(&data->isoc_anchor);
894 return;
895 }
896
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300897 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200898 }
Mikel Astizf4001d22012-04-11 08:48:51 +0200899
900 if (hdev->voice_setting & 0x0020) {
901 static const int alts[3] = { 2, 4, 5 };
902 new_alts = alts[hdev->conn_hash.sco_num - 1];
903 } else {
904 new_alts = hdev->conn_hash.sco_num;
905 }
906
907 if (data->isoc_altsetting != new_alts) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200908 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
909 usb_kill_anchored_urbs(&data->isoc_anchor);
910
Mikel Astizf4001d22012-04-11 08:48:51 +0200911 if (__set_isoc_interface(hdev, new_alts) < 0)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200912 return;
913 }
914
915 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100916 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200917 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
918 else
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100919 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200920 }
921 } else {
922 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
923 usb_kill_anchored_urbs(&data->isoc_anchor);
924
925 __set_isoc_interface(hdev, 0);
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300926 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
Oliver Neukum8efdd0c2011-02-11 13:00:06 +0100927 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200928 }
929}
930
Oliver Neukum7bee5492009-08-24 23:44:59 +0200931static void btusb_waker(struct work_struct *work)
932{
933 struct btusb_data *data = container_of(work, struct btusb_data, waker);
934 int err;
935
936 err = usb_autopm_get_interface(data->intf);
937 if (err < 0)
938 return;
939
940 usb_autopm_put_interface(data->intf);
941}
942
Marcel Holtmann9f8f9622013-04-10 08:11:35 -0700943static int btusb_setup_bcm92035(struct hci_dev *hdev)
944{
945 struct sk_buff *skb;
946 u8 val = 0x00;
947
948 BT_DBG("%s", hdev->name);
949
950 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
951 if (IS_ERR(skb))
952 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
953 else
954 kfree_skb(skb);
955
956 return 0;
957}
958
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -0700959struct intel_version {
960 u8 status;
961 u8 hw_platform;
962 u8 hw_variant;
963 u8 hw_revision;
964 u8 fw_variant;
965 u8 fw_revision;
966 u8 fw_build_num;
967 u8 fw_build_ww;
968 u8 fw_build_yy;
969 u8 fw_patch_num;
970} __packed;
971
972static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
973 struct intel_version *ver)
974{
975 const struct firmware *fw;
976 char fwname[64];
977 int ret;
978
979 snprintf(fwname, sizeof(fwname),
980 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
981 ver->hw_platform, ver->hw_variant, ver->hw_revision,
982 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
983 ver->fw_build_ww, ver->fw_build_yy);
984
985 ret = request_firmware(&fw, fwname, &hdev->dev);
986 if (ret < 0) {
987 if (ret == -EINVAL) {
988 BT_ERR("%s Intel firmware file request failed (%d)",
989 hdev->name, ret);
990 return NULL;
991 }
992
993 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
994 hdev->name, fwname, ret);
995
996 /* If the correct firmware patch file is not found, use the
997 * default firmware patch file instead
998 */
999 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1000 ver->hw_platform, ver->hw_variant);
1001 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1002 BT_ERR("%s failed to open default Intel fw file: %s",
1003 hdev->name, fwname);
1004 return NULL;
1005 }
1006 }
1007
1008 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1009
1010 return fw;
1011}
1012
1013static int btusb_setup_intel_patching(struct hci_dev *hdev,
1014 const struct firmware *fw,
1015 const u8 **fw_ptr, int *disable_patch)
1016{
1017 struct sk_buff *skb;
1018 struct hci_command_hdr *cmd;
1019 const u8 *cmd_param;
1020 struct hci_event_hdr *evt = NULL;
1021 const u8 *evt_param = NULL;
1022 int remain = fw->size - (*fw_ptr - fw->data);
1023
1024 /* The first byte indicates the types of the patch command or event.
1025 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1026 * in the current firmware buffer doesn't start with 0x01 or
1027 * the size of remain buffer is smaller than HCI command header,
1028 * the firmware file is corrupted and it should stop the patching
1029 * process.
1030 */
1031 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1032 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1033 return -EINVAL;
1034 }
1035 (*fw_ptr)++;
1036 remain--;
1037
1038 cmd = (struct hci_command_hdr *)(*fw_ptr);
1039 *fw_ptr += sizeof(*cmd);
1040 remain -= sizeof(*cmd);
1041
1042 /* Ensure that the remain firmware data is long enough than the length
1043 * of command parameter. If not, the firmware file is corrupted.
1044 */
1045 if (remain < cmd->plen) {
1046 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1047 return -EFAULT;
1048 }
1049
1050 /* If there is a command that loads a patch in the firmware
1051 * file, then enable the patch upon success, otherwise just
1052 * disable the manufacturer mode, for example patch activation
1053 * is not required when the default firmware patch file is used
1054 * because there are no patch data to load.
1055 */
1056 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1057 *disable_patch = 0;
1058
1059 cmd_param = *fw_ptr;
1060 *fw_ptr += cmd->plen;
1061 remain -= cmd->plen;
1062
1063 /* This reads the expected events when the above command is sent to the
1064 * device. Some vendor commands expects more than one events, for
1065 * example command status event followed by vendor specific event.
1066 * For this case, it only keeps the last expected event. so the command
1067 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1068 * last expected event.
1069 */
1070 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1071 (*fw_ptr)++;
1072 remain--;
1073
1074 evt = (struct hci_event_hdr *)(*fw_ptr);
1075 *fw_ptr += sizeof(*evt);
1076 remain -= sizeof(*evt);
1077
1078 if (remain < evt->plen) {
1079 BT_ERR("%s Intel fw corrupted: invalid evt len",
1080 hdev->name);
1081 return -EFAULT;
1082 }
1083
1084 evt_param = *fw_ptr;
1085 *fw_ptr += evt->plen;
1086 remain -= evt->plen;
1087 }
1088
1089 /* Every HCI commands in the firmware file has its correspond event.
1090 * If event is not found or remain is smaller than zero, the firmware
1091 * file is corrupted.
1092 */
1093 if (!evt || !evt_param || remain < 0) {
1094 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1095 return -EFAULT;
1096 }
1097
1098 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1099 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1100 if (IS_ERR(skb)) {
1101 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1102 hdev->name, cmd->opcode, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001103 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001104 }
1105
1106 /* It ensures that the returned event matches the event data read from
1107 * the firmware file. At fist, it checks the length and then
1108 * the contents of the event.
1109 */
1110 if (skb->len != evt->plen) {
1111 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1112 le16_to_cpu(cmd->opcode));
1113 kfree_skb(skb);
1114 return -EFAULT;
1115 }
1116
1117 if (memcmp(skb->data, evt_param, evt->plen)) {
1118 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1119 hdev->name, le16_to_cpu(cmd->opcode));
1120 kfree_skb(skb);
1121 return -EFAULT;
1122 }
1123 kfree_skb(skb);
1124
1125 return 0;
1126}
1127
1128static int btusb_setup_intel(struct hci_dev *hdev)
1129{
1130 struct sk_buff *skb;
1131 const struct firmware *fw;
1132 const u8 *fw_ptr;
1133 int disable_patch;
1134 struct intel_version *ver;
1135
1136 const u8 mfg_enable[] = { 0x01, 0x00 };
1137 const u8 mfg_disable[] = { 0x00, 0x00 };
1138 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1139 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1140
1141 BT_DBG("%s", hdev->name);
1142
1143 /* The controller has a bug with the first HCI command sent to it
1144 * returning number of completed commands as zero. This would stall the
1145 * command processing in the Bluetooth core.
1146 *
1147 * As a workaround, send HCI Reset command first which will reset the
1148 * number of completed commands and allow normal command processing
1149 * from now on.
1150 */
1151 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1152 if (IS_ERR(skb)) {
1153 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1154 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001155 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001156 }
1157 kfree_skb(skb);
1158
1159 /* Read Intel specific controller version first to allow selection of
1160 * which firmware file to load.
1161 *
1162 * The returned information are hardware variant and revision plus
1163 * firmware variant, revision and build number.
1164 */
1165 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1166 if (IS_ERR(skb)) {
1167 BT_ERR("%s reading Intel fw version command failed (%ld)",
1168 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001169 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001170 }
1171
1172 if (skb->len != sizeof(*ver)) {
1173 BT_ERR("%s Intel version event length mismatch", hdev->name);
1174 kfree_skb(skb);
1175 return -EIO;
1176 }
1177
1178 ver = (struct intel_version *)skb->data;
1179 if (ver->status) {
1180 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1181 ver->status);
1182 kfree_skb(skb);
1183 return -bt_to_errno(ver->status);
1184 }
1185
1186 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1187 hdev->name, ver->hw_platform, ver->hw_variant,
1188 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1189 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1190 ver->fw_patch_num);
1191
1192 /* fw_patch_num indicates the version of patch the device currently
1193 * have. If there is no patch data in the device, it is always 0x00.
1194 * So, if it is other than 0x00, no need to patch the deivce again.
1195 */
1196 if (ver->fw_patch_num) {
1197 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1198 hdev->name, ver->fw_patch_num);
1199 kfree_skb(skb);
1200 return 0;
1201 }
1202
1203 /* Opens the firmware patch file based on the firmware version read
1204 * from the controller. If it fails to open the matching firmware
1205 * patch file, it tries to open the default firmware patch file.
1206 * If no patch file is found, allow the device to operate without
1207 * a patch.
1208 */
1209 fw = btusb_setup_intel_get_fw(hdev, ver);
1210 if (!fw) {
1211 kfree_skb(skb);
1212 return 0;
1213 }
1214 fw_ptr = fw->data;
1215
1216 /* This Intel specific command enables the manufacturer mode of the
1217 * controller.
1218 *
1219 * Only while this mode is enabled, the driver can download the
1220 * firmware patch data and configuration parameters.
1221 */
1222 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1223 if (IS_ERR(skb)) {
1224 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1225 hdev->name, PTR_ERR(skb));
1226 release_firmware(fw);
Adam Leeea788752013-07-10 10:02:12 +08001227 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001228 }
1229
1230 if (skb->data[0]) {
1231 u8 evt_status = skb->data[0];
1232 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1233 hdev->name, evt_status);
1234 kfree_skb(skb);
1235 release_firmware(fw);
1236 return -bt_to_errno(evt_status);
1237 }
1238 kfree_skb(skb);
1239
1240 disable_patch = 1;
1241
1242 /* The firmware data file consists of list of Intel specific HCI
1243 * commands and its expected events. The first byte indicates the
1244 * type of the message, either HCI command or HCI event.
1245 *
1246 * It reads the command and its expected event from the firmware file,
1247 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1248 * the returned event is compared with the event read from the firmware
1249 * file and it will continue until all the messages are downloaded to
1250 * the controller.
1251 *
1252 * Once the firmware patching is completed successfully,
1253 * the manufacturer mode is disabled with reset and activating the
1254 * downloaded patch.
1255 *
1256 * If the firmware patching fails, the manufacturer mode is
1257 * disabled with reset and deactivating the patch.
1258 *
1259 * If the default patch file is used, no reset is done when disabling
1260 * the manufacturer.
1261 */
1262 while (fw->size > fw_ptr - fw->data) {
1263 int ret;
1264
1265 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1266 &disable_patch);
1267 if (ret < 0)
1268 goto exit_mfg_deactivate;
1269 }
1270
1271 release_firmware(fw);
1272
1273 if (disable_patch)
1274 goto exit_mfg_disable;
1275
1276 /* Patching completed successfully and disable the manufacturer mode
1277 * with reset and activate the downloaded firmware patches.
1278 */
1279 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1280 mfg_reset_activate, HCI_INIT_TIMEOUT);
1281 if (IS_ERR(skb)) {
1282 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1283 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001284 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001285 }
1286 kfree_skb(skb);
1287
1288 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1289 hdev->name);
1290
1291 return 0;
1292
1293exit_mfg_disable:
1294 /* Disable the manufacturer mode without reset */
1295 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1296 HCI_INIT_TIMEOUT);
1297 if (IS_ERR(skb)) {
1298 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1299 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001300 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001301 }
1302 kfree_skb(skb);
1303
1304 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1305 return 0;
1306
1307exit_mfg_deactivate:
1308 release_firmware(fw);
1309
1310 /* Patching failed. Disable the manufacturer mode with reset and
1311 * deactivate the downloaded firmware patches.
1312 */
1313 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1314 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1315 if (IS_ERR(skb)) {
1316 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1317 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001318 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001319 }
1320 kfree_skb(skb);
1321
1322 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1323 hdev->name);
1324
1325 return 0;
1326}
1327
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001328static int btusb_probe(struct usb_interface *intf,
1329 const struct usb_device_id *id)
1330{
1331 struct usb_endpoint_descriptor *ep_desc;
1332 struct btusb_data *data;
1333 struct hci_dev *hdev;
1334 int i, err;
1335
1336 BT_DBG("intf %p id %p", intf, id);
1337
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001338 /* interface numbers are hardcoded in the spec */
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001339 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1340 return -ENODEV;
1341
1342 if (!id->driver_info) {
1343 const struct usb_device_id *match;
1344 match = usb_match_id(intf, blacklist_table);
1345 if (match)
1346 id = match;
1347 }
1348
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001349 if (id->driver_info == BTUSB_IGNORE)
1350 return -ENODEV;
1351
1352 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1353 return -ENODEV;
1354
1355 if (ignore_csr && id->driver_info & BTUSB_CSR)
1356 return -ENODEV;
1357
1358 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1359 return -ENODEV;
1360
Steven.Li2d25f8b2011-07-01 14:02:36 +08001361 if (id->driver_info & BTUSB_ATH3012) {
1362 struct usb_device *udev = interface_to_usbdev(intf);
1363
1364 /* Old firmware would otherwise let ath3k driver load
1365 * patch and sysconfig files */
1366 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1367 return -ENODEV;
1368 }
1369
Sachin Kamat98921db2012-07-27 12:38:39 +05301370 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001371 if (!data)
1372 return -ENOMEM;
1373
1374 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1375 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1376
1377 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1378 data->intr_ep = ep_desc;
1379 continue;
1380 }
1381
1382 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1383 data->bulk_tx_ep = ep_desc;
1384 continue;
1385 }
1386
1387 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1388 data->bulk_rx_ep = ep_desc;
1389 continue;
1390 }
1391 }
1392
Sachin Kamat98921db2012-07-27 12:38:39 +05301393 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001394 return -ENODEV;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001395
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001396 data->cmdreq_type = USB_TYPE_CLASS;
1397
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001398 data->udev = interface_to_usbdev(intf);
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001399 data->intf = intf;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001400
1401 spin_lock_init(&data->lock);
1402
1403 INIT_WORK(&data->work, btusb_work);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001404 INIT_WORK(&data->waker, btusb_waker);
1405 spin_lock_init(&data->txlock);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001406
1407 init_usb_anchor(&data->tx_anchor);
1408 init_usb_anchor(&data->intr_anchor);
1409 init_usb_anchor(&data->bulk_anchor);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001410 init_usb_anchor(&data->isoc_anchor);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001411 init_usb_anchor(&data->deferred);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001412
1413 hdev = hci_alloc_dev();
Sachin Kamat98921db2012-07-27 12:38:39 +05301414 if (!hdev)
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001415 return -ENOMEM;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001416
Marcel Holtmannc13854c2010-02-08 15:27:07 +01001417 hdev->bus = HCI_USB;
David Herrmann155961e2012-02-09 21:58:32 +01001418 hci_set_drvdata(hdev, data);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001419
1420 data->hdev = hdev;
1421
1422 SET_HCIDEV_DEV(hdev, &intf->dev);
1423
Marcel Holtmann9f8f9622013-04-10 08:11:35 -07001424 hdev->open = btusb_open;
1425 hdev->close = btusb_close;
1426 hdev->flush = btusb_flush;
1427 hdev->send = btusb_send_frame;
1428 hdev->notify = btusb_notify;
1429
1430 if (id->driver_info & BTUSB_BCM92035)
1431 hdev->setup = btusb_setup_bcm92035;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001432
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001433 if (id->driver_info & BTUSB_INTEL)
1434 hdev->setup = btusb_setup_intel;
1435
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001436 /* Interface numbers are hardcoded in the specification */
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001437 data->isoc = usb_ifnum_to_if(data->udev, 1);
1438
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001439 if (!reset)
Szymon Janca6c511c2012-05-23 12:35:46 +02001440 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001441
1442 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1443 if (!disable_scofix)
1444 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1445 }
1446
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001447 if (id->driver_info & BTUSB_BROKEN_ISOC)
1448 data->isoc = NULL;
1449
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001450 if (id->driver_info & BTUSB_DIGIANSWER) {
1451 data->cmdreq_type = USB_TYPE_VENDOR;
Szymon Janca6c511c2012-05-23 12:35:46 +02001452 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001453 }
1454
1455 if (id->driver_info & BTUSB_CSR) {
1456 struct usb_device *udev = data->udev;
1457
1458 /* Old firmware would otherwise execute USB reset */
1459 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
Szymon Janca6c511c2012-05-23 12:35:46 +02001460 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001461 }
1462
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001463 if (id->driver_info & BTUSB_SNIFFER) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001464 struct usb_device *udev = data->udev;
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001465
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001466 /* New sniffer firmware has crippled HCI interface */
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001467 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1468 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001469
1470 data->isoc = NULL;
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001471 }
1472
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001473 if (data->isoc) {
1474 err = usb_driver_claim_interface(&btusb_driver,
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001475 data->isoc, data);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001476 if (err < 0) {
1477 hci_free_dev(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001478 return err;
1479 }
1480 }
1481
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001482 err = hci_register_dev(hdev);
1483 if (err < 0) {
1484 hci_free_dev(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001485 return err;
1486 }
1487
1488 usb_set_intfdata(intf, data);
1489
1490 return 0;
1491}
1492
1493static void btusb_disconnect(struct usb_interface *intf)
1494{
1495 struct btusb_data *data = usb_get_intfdata(intf);
1496 struct hci_dev *hdev;
1497
1498 BT_DBG("intf %p", intf);
1499
1500 if (!data)
1501 return;
1502
1503 hdev = data->hdev;
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001504 usb_set_intfdata(data->intf, NULL);
1505
1506 if (data->isoc)
1507 usb_set_intfdata(data->isoc, NULL);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001508
1509 hci_unregister_dev(hdev);
1510
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001511 if (intf == data->isoc)
1512 usb_driver_release_interface(&btusb_driver, data->intf);
1513 else if (data->isoc)
1514 usb_driver_release_interface(&btusb_driver, data->isoc);
1515
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001516 hci_free_dev(hdev);
1517}
1518
Oliver Neukum7bee5492009-08-24 23:44:59 +02001519#ifdef CONFIG_PM
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001520static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1521{
1522 struct btusb_data *data = usb_get_intfdata(intf);
1523
1524 BT_DBG("intf %p", intf);
1525
1526 if (data->suspend_count++)
1527 return 0;
1528
Oliver Neukum7bee5492009-08-24 23:44:59 +02001529 spin_lock_irq(&data->txlock);
Alan Stern5b1b0b82011-08-19 23:49:48 +02001530 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
Oliver Neukum7bee5492009-08-24 23:44:59 +02001531 set_bit(BTUSB_SUSPENDING, &data->flags);
1532 spin_unlock_irq(&data->txlock);
1533 } else {
1534 spin_unlock_irq(&data->txlock);
1535 data->suspend_count--;
1536 return -EBUSY;
1537 }
1538
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001539 cancel_work_sync(&data->work);
1540
Oliver Neukum7bee5492009-08-24 23:44:59 +02001541 btusb_stop_traffic(data);
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001542 usb_kill_anchored_urbs(&data->tx_anchor);
1543
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001544 return 0;
1545}
1546
Oliver Neukum7bee5492009-08-24 23:44:59 +02001547static void play_deferred(struct btusb_data *data)
1548{
1549 struct urb *urb;
1550 int err;
1551
1552 while ((urb = usb_get_from_anchor(&data->deferred))) {
1553 err = usb_submit_urb(urb, GFP_ATOMIC);
1554 if (err < 0)
1555 break;
1556
1557 data->tx_in_flight++;
1558 }
1559 usb_scuttle_anchored_urbs(&data->deferred);
1560}
1561
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001562static int btusb_resume(struct usb_interface *intf)
1563{
1564 struct btusb_data *data = usb_get_intfdata(intf);
1565 struct hci_dev *hdev = data->hdev;
Oliver Neukum7bee5492009-08-24 23:44:59 +02001566 int err = 0;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001567
1568 BT_DBG("intf %p", intf);
1569
1570 if (--data->suspend_count)
1571 return 0;
1572
1573 if (!test_bit(HCI_RUNNING, &hdev->flags))
Oliver Neukum7bee5492009-08-24 23:44:59 +02001574 goto done;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001575
1576 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1577 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1578 if (err < 0) {
1579 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001580 goto failed;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001581 }
1582 }
1583
1584 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
Marcel Holtmann43c2e572009-02-04 17:41:38 +01001585 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1586 if (err < 0) {
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001587 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001588 goto failed;
1589 }
1590
1591 btusb_submit_bulk_urb(hdev, GFP_NOIO);
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001592 }
1593
1594 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1595 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1596 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1597 else
1598 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1599 }
1600
Oliver Neukum7bee5492009-08-24 23:44:59 +02001601 spin_lock_irq(&data->txlock);
1602 play_deferred(data);
1603 clear_bit(BTUSB_SUSPENDING, &data->flags);
1604 spin_unlock_irq(&data->txlock);
1605 schedule_work(&data->work);
1606
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001607 return 0;
Oliver Neukum7bee5492009-08-24 23:44:59 +02001608
1609failed:
1610 usb_scuttle_anchored_urbs(&data->deferred);
1611done:
1612 spin_lock_irq(&data->txlock);
1613 clear_bit(BTUSB_SUSPENDING, &data->flags);
1614 spin_unlock_irq(&data->txlock);
1615
1616 return err;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001617}
Oliver Neukum7bee5492009-08-24 23:44:59 +02001618#endif
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001619
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001620static struct usb_driver btusb_driver = {
1621 .name = "btusb",
1622 .probe = btusb_probe,
1623 .disconnect = btusb_disconnect,
Oliver Neukum7bee5492009-08-24 23:44:59 +02001624#ifdef CONFIG_PM
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001625 .suspend = btusb_suspend,
1626 .resume = btusb_resume,
Oliver Neukum7bee5492009-08-24 23:44:59 +02001627#endif
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001628 .id_table = btusb_table,
Oliver Neukum7bee5492009-08-24 23:44:59 +02001629 .supports_autosuspend = 1,
Sarah Sharpe1f12eb2012-04-23 10:08:51 -07001630 .disable_hub_initiated_lpm = 1,
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001631};
1632
Greg Kroah-Hartman93f15082011-11-18 09:47:34 -08001633module_usb_driver(btusb_driver);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001634
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001635module_param(ignore_dga, bool, 0644);
1636MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1637
1638module_param(ignore_csr, bool, 0644);
1639MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1640
1641module_param(ignore_sniffer, bool, 0644);
1642MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1643
1644module_param(disable_scofix, bool, 0644);
1645MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1646
1647module_param(force_scofix, bool, 0644);
1648MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1649
1650module_param(reset, bool, 0644);
1651MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1652
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001653MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1654MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1655MODULE_VERSION(VERSION);
1656MODULE_LICENSE("GPL");