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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) },
Raphael Kubo da Costaa7905fb2013-09-02 14:57:51 +0300105 { USB_DEVICE(0x0b05, 0x17cb) },
Jaroslav Resler0c1abbd2012-09-11 17:25:32 +0800106 { USB_DEVICE(0x04ca, 0x2003) },
Manoj Iyer79cd7602012-04-09 09:22:28 -0500107 { USB_DEVICE(0x0489, 0xe042) },
Wen-chien Jesse Sungd13431c2011-11-08 14:30:22 +0800108 { USB_DEVICE(0x413c, 0x8197) },
109
Steven Harms98514032012-04-13 14:45:55 -0400110 /* Foxconn - Hon Hai */
Gustavo Padovanee664012012-08-15 01:38:11 -0300111 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
Steven Harms98514032012-04-13 14:45:55 -0400112
Gustavo Padovan92c385f2012-08-06 15:36:49 -0300113 /*Broadcom devices with vendor specific id */
114 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
115
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200116 { } /* Terminating entry */
117};
118
119MODULE_DEVICE_TABLE(usb, btusb_table);
120
121static struct usb_device_id blacklist_table[] = {
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200122 /* CSR BlueCore devices */
123 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
124
125 /* Broadcom BCM2033 without firmware */
126 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
127
Bala Shanmugambe931122010-11-26 17:35:46 +0530128 /* Atheros 3011 with sflash firmware */
129 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
Marek Vasut6eda5412012-06-08 14:32:50 +0200130 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
Andy Ross2a7bccc2011-05-09 16:11:16 -0700131 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
Ricardo Mendoza8e7c3d22011-07-13 16:04:29 +0100132 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
Keng-Yu Lin6b6ba882011-11-30 18:32:37 +0800133 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
Marcos Chaparroacd94542012-11-06 16:19:11 -0300134 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
Bala Shanmugambe931122010-11-26 17:35:46 +0530135
Cho, Yu-Chen509e7862011-01-26 17:10:59 +0800136 /* Atheros AR9285 Malbec with sflash firmware */
137 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
138
Bala Shanmugamd9f51b52011-02-11 15:38:53 +0530139 /* Atheros 3012 with sflash firmware */
Ming Leid66629c2013-03-15 11:00:39 +0800140 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
Steven.Li2d25f8b2011-07-01 14:02:36 +0800141 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
Sunguk Lee94a32d102013-03-12 04:41:58 +0900142 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
Cho, Yu-Chen07c0ea82012-03-14 22:01:21 +0200143 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
Ming Leiebaf5792013-03-18 23:45:11 +0800144 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
Eran9498ba72011-12-05 22:15:29 +0000145 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
Josh Boyer3f63c342013-02-19 11:54:16 -0500146 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
AceLan Kao55ed7d42012-03-28 10:25:36 +0800147 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
Daniel Schaal2c262b22012-12-29 11:14:34 +0100148 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
Mohammed Habibulla0d38fa92014-04-17 11:37:13 -0700149 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
Sergio Cambraf4d6f7d2013-01-10 01:06:55 +0100150 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
AceLan Kao87522a42012-04-13 17:39:57 +0800151 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
AceLan Kaoac713112012-04-19 14:53:45 +0800152 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
Peng Chen877ed5f2013-08-30 17:41:40 +0800153 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
Giancarlo Formicuccia6c4ae5c2012-06-10 08:33:11 +0200154 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
Peng Chen2096ae62012-08-01 10:11:59 +0800155 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
AceLan Kaoeed307e2012-12-11 11:41:20 +0800156 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
AceLan Kao3a61eda2013-01-03 12:24:59 +0800157 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
AceLan Kao2582d522013-01-03 12:25:00 +0800158 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
Noguchi Kazutosi0fc110f2013-03-24 23:41:10 +0900159 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
Thomas Loo4008b2c2013-07-03 02:53:54 +0200160 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
Sujith Manoharan44c41272013-07-15 09:29:03 +0530161 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
AceLan Kaodf235042013-07-17 11:27:40 +0800162 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
AceLan Kaoeba6a132013-06-20 13:38:45 +0800163 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
Bala Shanmugamd9f51b52011-02-11 15:38:53 +0530164
Cho, Yu-Chene9036e32011-02-15 10:20:07 +0800165 /* Atheros AR5BBU12 with sflash firmware */
166 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
167
Michael Gruetzner85d59722012-05-02 22:33:40 +0200168 /* Atheros AR5BBU12 with sflash firmware */
169 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
Yevgeniy Melnichukbc21fde2012-08-07 19:48:10 +0530170 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
Michael Gruetzner85d59722012-05-02 22:33:40 +0200171
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200172 /* Broadcom BCM2035 */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100173 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
174 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
175 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200176
177 /* Broadcom BCM2045 */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100178 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
179 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmannbdbef3d2008-09-23 00:16:35 +0200180
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200181 /* IBM/Lenovo ThinkPad with Broadcom chip */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100182 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
183 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200184
185 /* HP laptop with Broadcom chip */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100186 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200187
188 /* Dell laptop with Broadcom chip */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100189 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200190
Marcel Holtmann5ddd4a62008-11-30 12:17:27 +0100191 /* Dell Wireless 370 and 410 devices */
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100192 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmann5ddd4a62008-11-30 12:17:27 +0100193 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200194
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100195 /* Belkin F8T012 and F8T013 devices */
196 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
197 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200198
Marcel Holtmann5ddd4a62008-11-30 12:17:27 +0100199 /* Asus WL-BTD202 device */
200 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
201
202 /* Kensington Bluetooth USB adapter */
203 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
204
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200205 /* RTX Telecom based adapters with buggy SCO support */
206 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
207 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
208
209 /* CONWISE Technology based adapters with buggy SCO support */
210 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
211
Marcel Holtmanncfeb4142008-08-07 22:26:56 +0200212 /* Digianswer devices */
213 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
214 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
215
216 /* CSR BlueCore Bluetooth Sniffer */
217 { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
218
219 /* Frontline ComProbe Bluetooth Sniffer */
220 { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
221
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -0700222 /* Intel Bluetooth device */
223 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
224
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200225 { } /* Terminating entry */
226};
227
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200228#define BTUSB_MAX_ISOC_FRAMES 10
229
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200230#define BTUSB_INTR_RUNNING 0
231#define BTUSB_BULK_RUNNING 1
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200232#define BTUSB_ISOC_RUNNING 2
Oliver Neukum7bee5492009-08-24 23:44:59 +0200233#define BTUSB_SUSPENDING 3
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300234#define BTUSB_DID_ISO_RESUME 4
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200235
236struct btusb_data {
237 struct hci_dev *hdev;
238 struct usb_device *udev;
Marcel Holtmann5fbcd262008-09-23 00:16:36 +0200239 struct usb_interface *intf;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200240 struct usb_interface *isoc;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200241
242 spinlock_t lock;
243
244 unsigned long flags;
245
246 struct work_struct work;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200247 struct work_struct waker;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200248
249 struct usb_anchor tx_anchor;
250 struct usb_anchor intr_anchor;
251 struct usb_anchor bulk_anchor;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200252 struct usb_anchor isoc_anchor;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200253 struct usb_anchor deferred;
254 int tx_in_flight;
255 spinlock_t txlock;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200256
257 struct usb_endpoint_descriptor *intr_ep;
258 struct usb_endpoint_descriptor *bulk_tx_ep;
259 struct usb_endpoint_descriptor *bulk_rx_ep;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200260 struct usb_endpoint_descriptor *isoc_tx_ep;
261 struct usb_endpoint_descriptor *isoc_rx_ep;
262
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100263 __u8 cmdreq_type;
264
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100265 unsigned int sco_num;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200266 int isoc_altsetting;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +0100267 int suspend_count;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200268};
269
Oliver Neukum7bee5492009-08-24 23:44:59 +0200270static int inc_tx(struct btusb_data *data)
271{
272 unsigned long flags;
273 int rv;
274
275 spin_lock_irqsave(&data->txlock, flags);
276 rv = test_bit(BTUSB_SUSPENDING, &data->flags);
277 if (!rv)
278 data->tx_in_flight++;
279 spin_unlock_irqrestore(&data->txlock, flags);
280
281 return rv;
282}
283
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200284static void btusb_intr_complete(struct urb *urb)
285{
286 struct hci_dev *hdev = urb->context;
David Herrmann155961e2012-02-09 21:58:32 +0100287 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200288 int err;
289
290 BT_DBG("%s urb %p status %d count %d", hdev->name,
291 urb, urb->status, urb->actual_length);
292
293 if (!test_bit(HCI_RUNNING, &hdev->flags))
294 return;
295
296 if (urb->status == 0) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200297 hdev->stat.byte_rx += urb->actual_length;
298
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200299 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
300 urb->transfer_buffer,
301 urb->actual_length) < 0) {
302 BT_ERR("%s corrupted event packet", hdev->name);
303 hdev->stat.err_rx++;
304 }
Champion Chen41ba8fa2014-09-06 14:06:08 -0500305 } else if (urb->status == -ENOENT) {
306 /* Avoid suspend failed when usb_kill_urb */
307 return;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200308 }
309
310 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
311 return;
312
Oliver Neukum7bee5492009-08-24 23:44:59 +0200313 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200314 usb_anchor_urb(urb, &data->intr_anchor);
315
316 err = usb_submit_urb(urb, GFP_ATOMIC);
317 if (err < 0) {
Paul Bolle4935f1c2011-08-09 17:16:28 +0200318 /* -EPERM: urb is being killed;
319 * -ENODEV: device got disconnected */
320 if (err != -EPERM && err != -ENODEV)
Stefan Seyfried61faddf2010-11-30 21:49:08 +0100321 BT_ERR("%s urb %p failed to resubmit (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200322 hdev->name, urb, -err);
323 usb_unanchor_urb(urb);
324 }
325}
326
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100327static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200328{
David Herrmann155961e2012-02-09 21:58:32 +0100329 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200330 struct urb *urb;
331 unsigned char *buf;
332 unsigned int pipe;
333 int err, size;
334
335 BT_DBG("%s", hdev->name);
336
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200337 if (!data->intr_ep)
338 return -ENODEV;
339
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100340 urb = usb_alloc_urb(0, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200341 if (!urb)
342 return -ENOMEM;
343
344 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
345
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100346 buf = kmalloc(size, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200347 if (!buf) {
348 usb_free_urb(urb);
349 return -ENOMEM;
350 }
351
352 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
353
354 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
355 btusb_intr_complete, hdev,
356 data->intr_ep->bInterval);
357
358 urb->transfer_flags |= URB_FREE_BUFFER;
359
360 usb_anchor_urb(urb, &data->intr_anchor);
361
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100362 err = usb_submit_urb(urb, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200363 if (err < 0) {
Paul Bolled4b8d1c2011-10-09 12:12:22 +0200364 if (err != -EPERM && err != -ENODEV)
365 BT_ERR("%s urb %p submission failed (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200366 hdev->name, urb, -err);
367 usb_unanchor_urb(urb);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200368 }
369
370 usb_free_urb(urb);
371
372 return err;
373}
374
375static void btusb_bulk_complete(struct urb *urb)
376{
377 struct hci_dev *hdev = urb->context;
David Herrmann155961e2012-02-09 21:58:32 +0100378 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200379 int err;
380
381 BT_DBG("%s urb %p status %d count %d", hdev->name,
382 urb, urb->status, urb->actual_length);
383
384 if (!test_bit(HCI_RUNNING, &hdev->flags))
385 return;
386
387 if (urb->status == 0) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200388 hdev->stat.byte_rx += urb->actual_length;
389
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200390 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
391 urb->transfer_buffer,
392 urb->actual_length) < 0) {
393 BT_ERR("%s corrupted ACL packet", hdev->name);
394 hdev->stat.err_rx++;
395 }
Champion Chen41ba8fa2014-09-06 14:06:08 -0500396 } else if (urb->status == -ENOENT) {
397 /* Avoid suspend failed when usb_kill_urb */
398 return;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200399 }
400
401 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
402 return;
403
404 usb_anchor_urb(urb, &data->bulk_anchor);
Oliver Neukum652fd782009-12-16 19:23:43 +0100405 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200406
407 err = usb_submit_urb(urb, GFP_ATOMIC);
408 if (err < 0) {
Paul Bolle4935f1c2011-08-09 17:16:28 +0200409 /* -EPERM: urb is being killed;
410 * -ENODEV: device got disconnected */
411 if (err != -EPERM && err != -ENODEV)
Stefan Seyfried61faddf2010-11-30 21:49:08 +0100412 BT_ERR("%s urb %p failed to resubmit (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200413 hdev->name, urb, -err);
414 usb_unanchor_urb(urb);
415 }
416}
417
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100418static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200419{
David Herrmann155961e2012-02-09 21:58:32 +0100420 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200421 struct urb *urb;
422 unsigned char *buf;
423 unsigned int pipe;
Vikram Kandukuri290ba202009-07-02 14:31:59 +0530424 int err, size = HCI_MAX_FRAME_SIZE;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200425
426 BT_DBG("%s", hdev->name);
427
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200428 if (!data->bulk_rx_ep)
429 return -ENODEV;
430
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100431 urb = usb_alloc_urb(0, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200432 if (!urb)
433 return -ENOMEM;
434
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100435 buf = kmalloc(size, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200436 if (!buf) {
437 usb_free_urb(urb);
438 return -ENOMEM;
439 }
440
441 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
442
443 usb_fill_bulk_urb(urb, data->udev, pipe,
444 buf, size, btusb_bulk_complete, hdev);
445
446 urb->transfer_flags |= URB_FREE_BUFFER;
447
Oliver Neukum7bee5492009-08-24 23:44:59 +0200448 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200449 usb_anchor_urb(urb, &data->bulk_anchor);
450
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100451 err = usb_submit_urb(urb, mem_flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200452 if (err < 0) {
Paul Bolled4b8d1c2011-10-09 12:12:22 +0200453 if (err != -EPERM && err != -ENODEV)
454 BT_ERR("%s urb %p submission failed (%d)",
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200455 hdev->name, urb, -err);
456 usb_unanchor_urb(urb);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200457 }
458
459 usb_free_urb(urb);
460
461 return err;
462}
463
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200464static void btusb_isoc_complete(struct urb *urb)
465{
466 struct hci_dev *hdev = urb->context;
David Herrmann155961e2012-02-09 21:58:32 +0100467 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200468 int i, err;
469
470 BT_DBG("%s urb %p status %d count %d", hdev->name,
471 urb, urb->status, urb->actual_length);
472
473 if (!test_bit(HCI_RUNNING, &hdev->flags))
474 return;
475
476 if (urb->status == 0) {
477 for (i = 0; i < urb->number_of_packets; i++) {
478 unsigned int offset = urb->iso_frame_desc[i].offset;
479 unsigned int length = urb->iso_frame_desc[i].actual_length;
480
481 if (urb->iso_frame_desc[i].status)
482 continue;
483
484 hdev->stat.byte_rx += length;
485
486 if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
487 urb->transfer_buffer + offset,
488 length) < 0) {
489 BT_ERR("%s corrupted SCO packet", hdev->name);
490 hdev->stat.err_rx++;
491 }
492 }
Champion Chen41ba8fa2014-09-06 14:06:08 -0500493 } else if (urb->status == -ENOENT) {
494 /* Avoid suspend failed when usb_kill_urb */
495 return;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200496 }
497
498 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
499 return;
500
501 usb_anchor_urb(urb, &data->isoc_anchor);
502
503 err = usb_submit_urb(urb, GFP_ATOMIC);
504 if (err < 0) {
Paul Bolle4935f1c2011-08-09 17:16:28 +0200505 /* -EPERM: urb is being killed;
506 * -ENODEV: device got disconnected */
507 if (err != -EPERM && err != -ENODEV)
Stefan Seyfried61faddf2010-11-30 21:49:08 +0100508 BT_ERR("%s urb %p failed to resubmit (%d)",
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200509 hdev->name, urb, -err);
510 usb_unanchor_urb(urb);
511 }
512}
513
Jesper Juhl42b16b32011-01-17 00:09:38 +0100514static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200515{
516 int i, offset = 0;
517
518 BT_DBG("len %d mtu %d", len, mtu);
519
520 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
521 i++, offset += mtu, len -= mtu) {
522 urb->iso_frame_desc[i].offset = offset;
523 urb->iso_frame_desc[i].length = mtu;
524 }
525
526 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
527 urb->iso_frame_desc[i].offset = offset;
528 urb->iso_frame_desc[i].length = len;
529 i++;
530 }
531
532 urb->number_of_packets = i;
533}
534
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100535static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200536{
David Herrmann155961e2012-02-09 21:58:32 +0100537 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200538 struct urb *urb;
539 unsigned char *buf;
540 unsigned int pipe;
541 int err, size;
542
543 BT_DBG("%s", hdev->name);
544
545 if (!data->isoc_rx_ep)
546 return -ENODEV;
547
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100548 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200549 if (!urb)
550 return -ENOMEM;
551
552 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
553 BTUSB_MAX_ISOC_FRAMES;
554
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100555 buf = kmalloc(size, mem_flags);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200556 if (!buf) {
557 usb_free_urb(urb);
558 return -ENOMEM;
559 }
560
561 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
562
Bing Zhaofa0fb932011-12-20 18:19:00 -0800563 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
564 hdev, data->isoc_rx_ep->bInterval);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200565
566 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200567
568 __fill_isoc_descriptor(urb, size,
569 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
570
571 usb_anchor_urb(urb, &data->isoc_anchor);
572
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100573 err = usb_submit_urb(urb, mem_flags);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200574 if (err < 0) {
Paul Bolled4b8d1c2011-10-09 12:12:22 +0200575 if (err != -EPERM && err != -ENODEV)
576 BT_ERR("%s urb %p submission failed (%d)",
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200577 hdev->name, urb, -err);
578 usb_unanchor_urb(urb);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200579 }
580
581 usb_free_urb(urb);
582
583 return err;
584}
585
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200586static void btusb_tx_complete(struct urb *urb)
587{
588 struct sk_buff *skb = urb->context;
589 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
David Herrmann155961e2012-02-09 21:58:32 +0100590 struct btusb_data *data = hci_get_drvdata(hdev);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200591
592 BT_DBG("%s urb %p status %d count %d", hdev->name,
593 urb, urb->status, urb->actual_length);
594
595 if (!test_bit(HCI_RUNNING, &hdev->flags))
596 goto done;
597
598 if (!urb->status)
599 hdev->stat.byte_tx += urb->transfer_buffer_length;
600 else
601 hdev->stat.err_tx++;
602
603done:
604 spin_lock(&data->txlock);
605 data->tx_in_flight--;
606 spin_unlock(&data->txlock);
607
608 kfree(urb->setup_packet);
609
610 kfree_skb(skb);
611}
612
613static void btusb_isoc_tx_complete(struct urb *urb)
614{
615 struct sk_buff *skb = urb->context;
616 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200617
618 BT_DBG("%s urb %p status %d count %d", hdev->name,
619 urb, urb->status, urb->actual_length);
620
621 if (!test_bit(HCI_RUNNING, &hdev->flags))
622 goto done;
623
624 if (!urb->status)
625 hdev->stat.byte_tx += urb->transfer_buffer_length;
626 else
627 hdev->stat.err_tx++;
628
629done:
630 kfree(urb->setup_packet);
631
632 kfree_skb(skb);
633}
634
635static int btusb_open(struct hci_dev *hdev)
636{
David Herrmann155961e2012-02-09 21:58:32 +0100637 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200638 int err;
639
640 BT_DBG("%s", hdev->name);
641
Oliver Neukum7bee5492009-08-24 23:44:59 +0200642 err = usb_autopm_get_interface(data->intf);
643 if (err < 0)
644 return err;
645
646 data->intf->needs_remote_wakeup = 1;
647
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200648 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
Oliver Neukum7bee5492009-08-24 23:44:59 +0200649 goto done;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200650
651 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
Oliver Neukum7bee5492009-08-24 23:44:59 +0200652 goto done;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200653
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100654 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100655 if (err < 0)
656 goto failed;
657
658 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200659 if (err < 0) {
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100660 usb_kill_anchored_urbs(&data->intr_anchor);
661 goto failed;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200662 }
663
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100664 set_bit(BTUSB_BULK_RUNNING, &data->flags);
665 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
666
Oliver Neukum7bee5492009-08-24 23:44:59 +0200667done:
668 usb_autopm_put_interface(data->intf);
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100669 return 0;
670
671failed:
672 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
673 clear_bit(HCI_RUNNING, &hdev->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200674 usb_autopm_put_interface(data->intf);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200675 return err;
676}
677
Oliver Neukum7bee5492009-08-24 23:44:59 +0200678static void btusb_stop_traffic(struct btusb_data *data)
679{
680 usb_kill_anchored_urbs(&data->intr_anchor);
681 usb_kill_anchored_urbs(&data->bulk_anchor);
682 usb_kill_anchored_urbs(&data->isoc_anchor);
683}
684
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200685static int btusb_close(struct hci_dev *hdev)
686{
David Herrmann155961e2012-02-09 21:58:32 +0100687 struct btusb_data *data = hci_get_drvdata(hdev);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200688 int err;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200689
690 BT_DBG("%s", hdev->name);
691
692 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
693 return 0;
694
Marcel Holtmanne8c3c3d2008-09-23 00:16:36 +0200695 cancel_work_sync(&data->work);
Linus Torvalds404291a2009-11-11 13:32:29 -0800696 cancel_work_sync(&data->waker);
Marcel Holtmanne8c3c3d2008-09-23 00:16:36 +0200697
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200698 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200699 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200700 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200701
702 btusb_stop_traffic(data);
703 err = usb_autopm_get_interface(data->intf);
704 if (err < 0)
Oliver Neukum7b8e2c12009-11-13 14:26:23 +0100705 goto failed;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200706
707 data->intf->needs_remote_wakeup = 0;
708 usb_autopm_put_interface(data->intf);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200709
Oliver Neukum7b8e2c12009-11-13 14:26:23 +0100710failed:
711 usb_scuttle_anchored_urbs(&data->deferred);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200712 return 0;
713}
714
715static int btusb_flush(struct hci_dev *hdev)
716{
David Herrmann155961e2012-02-09 21:58:32 +0100717 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200718
719 BT_DBG("%s", hdev->name);
720
721 usb_kill_anchored_urbs(&data->tx_anchor);
722
723 return 0;
724}
725
726static int btusb_send_frame(struct sk_buff *skb)
727{
728 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
David Herrmann155961e2012-02-09 21:58:32 +0100729 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200730 struct usb_ctrlrequest *dr;
731 struct urb *urb;
732 unsigned int pipe;
733 int err;
734
735 BT_DBG("%s", hdev->name);
736
737 if (!test_bit(HCI_RUNNING, &hdev->flags))
738 return -EBUSY;
739
740 switch (bt_cb(skb)->pkt_type) {
741 case HCI_COMMAND_PKT:
742 urb = usb_alloc_urb(0, GFP_ATOMIC);
743 if (!urb)
744 return -ENOMEM;
745
746 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
747 if (!dr) {
748 usb_free_urb(urb);
749 return -ENOMEM;
750 }
751
Marcel Holtmann7a9d4022008-11-30 12:17:26 +0100752 dr->bRequestType = data->cmdreq_type;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200753 dr->bRequest = 0;
754 dr->wIndex = 0;
755 dr->wValue = 0;
756 dr->wLength = __cpu_to_le16(skb->len);
757
758 pipe = usb_sndctrlpipe(data->udev, 0x00);
759
760 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
761 skb->data, skb->len, btusb_tx_complete, skb);
762
763 hdev->stat.cmd_tx++;
764 break;
765
766 case HCI_ACLDATA_PKT:
Peter Hurley9fd481e2011-07-14 08:48:32 -0400767 if (!data->bulk_tx_ep)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200768 return -ENODEV;
769
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200770 urb = usb_alloc_urb(0, GFP_ATOMIC);
771 if (!urb)
772 return -ENOMEM;
773
774 pipe = usb_sndbulkpipe(data->udev,
775 data->bulk_tx_ep->bEndpointAddress);
776
777 usb_fill_bulk_urb(urb, data->udev, pipe,
778 skb->data, skb->len, btusb_tx_complete, skb);
779
780 hdev->stat.acl_tx++;
781 break;
782
783 case HCI_SCODATA_PKT:
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200784 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
785 return -ENODEV;
786
787 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
788 if (!urb)
789 return -ENOMEM;
790
791 pipe = usb_sndisocpipe(data->udev,
792 data->isoc_tx_ep->bEndpointAddress);
793
Gustavo F. Padovan03c2d0e2011-02-14 18:53:43 -0300794 usb_fill_int_urb(urb, data->udev, pipe,
795 skb->data, skb->len, btusb_isoc_tx_complete,
796 skb, data->isoc_tx_ep->bInterval);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200797
798 urb->transfer_flags = URB_ISO_ASAP;
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200799
800 __fill_isoc_descriptor(urb, skb->len,
801 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
802
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200803 hdev->stat.sco_tx++;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200804 goto skip_waking;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200805
806 default:
807 return -EILSEQ;
808 }
809
Oliver Neukum7bee5492009-08-24 23:44:59 +0200810 err = inc_tx(data);
811 if (err) {
812 usb_anchor_urb(urb, &data->deferred);
813 schedule_work(&data->waker);
814 err = 0;
815 goto done;
816 }
817
818skip_waking:
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200819 usb_anchor_urb(urb, &data->tx_anchor);
820
821 err = usb_submit_urb(urb, GFP_ATOMIC);
822 if (err < 0) {
Paul Bolle5a9b80e2011-10-09 12:12:16 +0200823 if (err != -EPERM && err != -ENODEV)
824 BT_ERR("%s urb %p submission failed (%d)",
825 hdev->name, urb, -err);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200826 kfree(urb->setup_packet);
827 usb_unanchor_urb(urb);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200828 } else {
829 usb_mark_last_busy(data->udev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200830 }
831
Oliver Neukum7bee5492009-08-24 23:44:59 +0200832done:
Cong Wang54a8a792011-11-22 09:32:57 +0800833 usb_free_urb(urb);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200834 return err;
835}
836
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200837static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
838{
David Herrmann155961e2012-02-09 21:58:32 +0100839 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200840
841 BT_DBG("%s evt %d", hdev->name, evt);
842
Marcel Holtmann43c2e572009-02-04 17:41:38 +0100843 if (hdev->conn_hash.sco_num != data->sco_num) {
844 data->sco_num = hdev->conn_hash.sco_num;
845 schedule_work(&data->work);
Marcel Holtmanna780efa2008-11-30 12:17:12 +0100846 }
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200847}
848
Jesper Juhl42b16b32011-01-17 00:09:38 +0100849static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200850{
David Herrmann155961e2012-02-09 21:58:32 +0100851 struct btusb_data *data = hci_get_drvdata(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200852 struct usb_interface *intf = data->isoc;
853 struct usb_endpoint_descriptor *ep_desc;
854 int i, err;
855
856 if (!data->isoc)
857 return -ENODEV;
858
859 err = usb_set_interface(data->udev, 1, altsetting);
860 if (err < 0) {
861 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
862 return err;
863 }
864
865 data->isoc_altsetting = altsetting;
866
867 data->isoc_tx_ep = NULL;
868 data->isoc_rx_ep = NULL;
869
870 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
871 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
872
873 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
874 data->isoc_tx_ep = ep_desc;
875 continue;
876 }
877
878 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
879 data->isoc_rx_ep = ep_desc;
880 continue;
881 }
882 }
883
884 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
885 BT_ERR("%s invalid SCO descriptors", hdev->name);
886 return -ENODEV;
887 }
888
889 return 0;
890}
891
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200892static void btusb_work(struct work_struct *work)
893{
894 struct btusb_data *data = container_of(work, struct btusb_data, work);
895 struct hci_dev *hdev = data->hdev;
Mikel Astizf4001d22012-04-11 08:48:51 +0200896 int new_alts;
Oliver Neukum7bee5492009-08-24 23:44:59 +0200897 int err;
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200898
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200899 if (hdev->conn_hash.sco_num > 0) {
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300900 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
Oliver Neukum8efdd0c2011-02-11 13:00:06 +0100901 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200902 if (err < 0) {
903 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
904 usb_kill_anchored_urbs(&data->isoc_anchor);
905 return;
906 }
907
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300908 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +0200909 }
Mikel Astizf4001d22012-04-11 08:48:51 +0200910
911 if (hdev->voice_setting & 0x0020) {
912 static const int alts[3] = { 2, 4, 5 };
913 new_alts = alts[hdev->conn_hash.sco_num - 1];
914 } else {
915 new_alts = hdev->conn_hash.sco_num;
916 }
917
918 if (data->isoc_altsetting != new_alts) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200919 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
920 usb_kill_anchored_urbs(&data->isoc_anchor);
921
Mikel Astizf4001d22012-04-11 08:48:51 +0200922 if (__set_isoc_interface(hdev, new_alts) < 0)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200923 return;
924 }
925
926 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100927 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200928 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
929 else
Marcel Holtmann2eda66f2008-11-30 12:17:10 +0100930 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +0200931 }
932 } else {
933 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
934 usb_kill_anchored_urbs(&data->isoc_anchor);
935
936 __set_isoc_interface(hdev, 0);
Gustavo F. Padovan08b8b6c2010-07-16 17:20:33 -0300937 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
Oliver Neukum8efdd0c2011-02-11 13:00:06 +0100938 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
Marcel Holtmann5e23b922007-10-20 14:12:34 +0200939 }
940}
941
Oliver Neukum7bee5492009-08-24 23:44:59 +0200942static void btusb_waker(struct work_struct *work)
943{
944 struct btusb_data *data = container_of(work, struct btusb_data, waker);
945 int err;
946
947 err = usb_autopm_get_interface(data->intf);
948 if (err < 0)
949 return;
950
951 usb_autopm_put_interface(data->intf);
952}
953
Marcel Holtmann9f8f9622013-04-10 08:11:35 -0700954static int btusb_setup_bcm92035(struct hci_dev *hdev)
955{
956 struct sk_buff *skb;
957 u8 val = 0x00;
958
959 BT_DBG("%s", hdev->name);
960
961 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
962 if (IS_ERR(skb))
963 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
964 else
965 kfree_skb(skb);
966
967 return 0;
968}
969
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -0700970struct intel_version {
971 u8 status;
972 u8 hw_platform;
973 u8 hw_variant;
974 u8 hw_revision;
975 u8 fw_variant;
976 u8 fw_revision;
977 u8 fw_build_num;
978 u8 fw_build_ww;
979 u8 fw_build_yy;
980 u8 fw_patch_num;
981} __packed;
982
983static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
984 struct intel_version *ver)
985{
986 const struct firmware *fw;
987 char fwname[64];
988 int ret;
989
990 snprintf(fwname, sizeof(fwname),
991 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
992 ver->hw_platform, ver->hw_variant, ver->hw_revision,
993 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
994 ver->fw_build_ww, ver->fw_build_yy);
995
996 ret = request_firmware(&fw, fwname, &hdev->dev);
997 if (ret < 0) {
998 if (ret == -EINVAL) {
999 BT_ERR("%s Intel firmware file request failed (%d)",
1000 hdev->name, ret);
1001 return NULL;
1002 }
1003
1004 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1005 hdev->name, fwname, ret);
1006
1007 /* If the correct firmware patch file is not found, use the
1008 * default firmware patch file instead
1009 */
1010 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1011 ver->hw_platform, ver->hw_variant);
1012 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1013 BT_ERR("%s failed to open default Intel fw file: %s",
1014 hdev->name, fwname);
1015 return NULL;
1016 }
1017 }
1018
1019 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1020
1021 return fw;
1022}
1023
1024static int btusb_setup_intel_patching(struct hci_dev *hdev,
1025 const struct firmware *fw,
1026 const u8 **fw_ptr, int *disable_patch)
1027{
1028 struct sk_buff *skb;
1029 struct hci_command_hdr *cmd;
1030 const u8 *cmd_param;
1031 struct hci_event_hdr *evt = NULL;
1032 const u8 *evt_param = NULL;
1033 int remain = fw->size - (*fw_ptr - fw->data);
1034
1035 /* The first byte indicates the types of the patch command or event.
1036 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1037 * in the current firmware buffer doesn't start with 0x01 or
1038 * the size of remain buffer is smaller than HCI command header,
1039 * the firmware file is corrupted and it should stop the patching
1040 * process.
1041 */
1042 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1043 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1044 return -EINVAL;
1045 }
1046 (*fw_ptr)++;
1047 remain--;
1048
1049 cmd = (struct hci_command_hdr *)(*fw_ptr);
1050 *fw_ptr += sizeof(*cmd);
1051 remain -= sizeof(*cmd);
1052
1053 /* Ensure that the remain firmware data is long enough than the length
1054 * of command parameter. If not, the firmware file is corrupted.
1055 */
1056 if (remain < cmd->plen) {
1057 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1058 return -EFAULT;
1059 }
1060
1061 /* If there is a command that loads a patch in the firmware
1062 * file, then enable the patch upon success, otherwise just
1063 * disable the manufacturer mode, for example patch activation
1064 * is not required when the default firmware patch file is used
1065 * because there are no patch data to load.
1066 */
1067 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1068 *disable_patch = 0;
1069
1070 cmd_param = *fw_ptr;
1071 *fw_ptr += cmd->plen;
1072 remain -= cmd->plen;
1073
1074 /* This reads the expected events when the above command is sent to the
1075 * device. Some vendor commands expects more than one events, for
1076 * example command status event followed by vendor specific event.
1077 * For this case, it only keeps the last expected event. so the command
1078 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1079 * last expected event.
1080 */
1081 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1082 (*fw_ptr)++;
1083 remain--;
1084
1085 evt = (struct hci_event_hdr *)(*fw_ptr);
1086 *fw_ptr += sizeof(*evt);
1087 remain -= sizeof(*evt);
1088
1089 if (remain < evt->plen) {
1090 BT_ERR("%s Intel fw corrupted: invalid evt len",
1091 hdev->name);
1092 return -EFAULT;
1093 }
1094
1095 evt_param = *fw_ptr;
1096 *fw_ptr += evt->plen;
1097 remain -= evt->plen;
1098 }
1099
1100 /* Every HCI commands in the firmware file has its correspond event.
1101 * If event is not found or remain is smaller than zero, the firmware
1102 * file is corrupted.
1103 */
1104 if (!evt || !evt_param || remain < 0) {
1105 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1106 return -EFAULT;
1107 }
1108
1109 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1110 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1111 if (IS_ERR(skb)) {
1112 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1113 hdev->name, cmd->opcode, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001114 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001115 }
1116
1117 /* It ensures that the returned event matches the event data read from
1118 * the firmware file. At fist, it checks the length and then
1119 * the contents of the event.
1120 */
1121 if (skb->len != evt->plen) {
1122 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1123 le16_to_cpu(cmd->opcode));
1124 kfree_skb(skb);
1125 return -EFAULT;
1126 }
1127
1128 if (memcmp(skb->data, evt_param, evt->plen)) {
1129 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1130 hdev->name, le16_to_cpu(cmd->opcode));
1131 kfree_skb(skb);
1132 return -EFAULT;
1133 }
1134 kfree_skb(skb);
1135
1136 return 0;
1137}
1138
1139static int btusb_setup_intel(struct hci_dev *hdev)
1140{
1141 struct sk_buff *skb;
1142 const struct firmware *fw;
1143 const u8 *fw_ptr;
1144 int disable_patch;
1145 struct intel_version *ver;
1146
1147 const u8 mfg_enable[] = { 0x01, 0x00 };
1148 const u8 mfg_disable[] = { 0x00, 0x00 };
1149 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1150 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1151
1152 BT_DBG("%s", hdev->name);
1153
1154 /* The controller has a bug with the first HCI command sent to it
1155 * returning number of completed commands as zero. This would stall the
1156 * command processing in the Bluetooth core.
1157 *
1158 * As a workaround, send HCI Reset command first which will reset the
1159 * number of completed commands and allow normal command processing
1160 * from now on.
1161 */
1162 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1163 if (IS_ERR(skb)) {
1164 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1165 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001166 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001167 }
1168 kfree_skb(skb);
1169
1170 /* Read Intel specific controller version first to allow selection of
1171 * which firmware file to load.
1172 *
1173 * The returned information are hardware variant and revision plus
1174 * firmware variant, revision and build number.
1175 */
1176 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1177 if (IS_ERR(skb)) {
1178 BT_ERR("%s reading Intel fw version command failed (%ld)",
1179 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001180 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001181 }
1182
1183 if (skb->len != sizeof(*ver)) {
1184 BT_ERR("%s Intel version event length mismatch", hdev->name);
1185 kfree_skb(skb);
1186 return -EIO;
1187 }
1188
1189 ver = (struct intel_version *)skb->data;
1190 if (ver->status) {
1191 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1192 ver->status);
1193 kfree_skb(skb);
1194 return -bt_to_errno(ver->status);
1195 }
1196
1197 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1198 hdev->name, ver->hw_platform, ver->hw_variant,
1199 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1200 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1201 ver->fw_patch_num);
1202
1203 /* fw_patch_num indicates the version of patch the device currently
1204 * have. If there is no patch data in the device, it is always 0x00.
1205 * So, if it is other than 0x00, no need to patch the deivce again.
1206 */
1207 if (ver->fw_patch_num) {
1208 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1209 hdev->name, ver->fw_patch_num);
1210 kfree_skb(skb);
1211 return 0;
1212 }
1213
1214 /* Opens the firmware patch file based on the firmware version read
1215 * from the controller. If it fails to open the matching firmware
1216 * patch file, it tries to open the default firmware patch file.
1217 * If no patch file is found, allow the device to operate without
1218 * a patch.
1219 */
1220 fw = btusb_setup_intel_get_fw(hdev, ver);
1221 if (!fw) {
1222 kfree_skb(skb);
1223 return 0;
1224 }
1225 fw_ptr = fw->data;
1226
1227 /* This Intel specific command enables the manufacturer mode of the
1228 * controller.
1229 *
1230 * Only while this mode is enabled, the driver can download the
1231 * firmware patch data and configuration parameters.
1232 */
1233 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1234 if (IS_ERR(skb)) {
1235 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1236 hdev->name, PTR_ERR(skb));
1237 release_firmware(fw);
Adam Leeea788752013-07-10 10:02:12 +08001238 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001239 }
1240
1241 if (skb->data[0]) {
1242 u8 evt_status = skb->data[0];
1243 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1244 hdev->name, evt_status);
1245 kfree_skb(skb);
1246 release_firmware(fw);
1247 return -bt_to_errno(evt_status);
1248 }
1249 kfree_skb(skb);
1250
1251 disable_patch = 1;
1252
1253 /* The firmware data file consists of list of Intel specific HCI
1254 * commands and its expected events. The first byte indicates the
1255 * type of the message, either HCI command or HCI event.
1256 *
1257 * It reads the command and its expected event from the firmware file,
1258 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1259 * the returned event is compared with the event read from the firmware
1260 * file and it will continue until all the messages are downloaded to
1261 * the controller.
1262 *
1263 * Once the firmware patching is completed successfully,
1264 * the manufacturer mode is disabled with reset and activating the
1265 * downloaded patch.
1266 *
1267 * If the firmware patching fails, the manufacturer mode is
1268 * disabled with reset and deactivating the patch.
1269 *
1270 * If the default patch file is used, no reset is done when disabling
1271 * the manufacturer.
1272 */
1273 while (fw->size > fw_ptr - fw->data) {
1274 int ret;
1275
1276 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1277 &disable_patch);
1278 if (ret < 0)
1279 goto exit_mfg_deactivate;
1280 }
1281
1282 release_firmware(fw);
1283
1284 if (disable_patch)
1285 goto exit_mfg_disable;
1286
1287 /* Patching completed successfully and disable the manufacturer mode
1288 * with reset and activate the downloaded firmware patches.
1289 */
1290 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1291 mfg_reset_activate, HCI_INIT_TIMEOUT);
1292 if (IS_ERR(skb)) {
1293 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1294 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001295 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001296 }
1297 kfree_skb(skb);
1298
1299 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1300 hdev->name);
1301
1302 return 0;
1303
1304exit_mfg_disable:
1305 /* Disable the manufacturer mode without reset */
1306 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1307 HCI_INIT_TIMEOUT);
1308 if (IS_ERR(skb)) {
1309 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1310 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001311 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001312 }
1313 kfree_skb(skb);
1314
1315 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1316 return 0;
1317
1318exit_mfg_deactivate:
1319 release_firmware(fw);
1320
1321 /* Patching failed. Disable the manufacturer mode with reset and
1322 * deactivate the downloaded firmware patches.
1323 */
1324 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1325 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1326 if (IS_ERR(skb)) {
1327 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1328 hdev->name, PTR_ERR(skb));
Adam Leeea788752013-07-10 10:02:12 +08001329 return PTR_ERR(skb);
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001330 }
1331 kfree_skb(skb);
1332
1333 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1334 hdev->name);
1335
1336 return 0;
1337}
1338
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001339static int btusb_probe(struct usb_interface *intf,
1340 const struct usb_device_id *id)
1341{
1342 struct usb_endpoint_descriptor *ep_desc;
1343 struct btusb_data *data;
1344 struct hci_dev *hdev;
1345 int i, err;
1346
1347 BT_DBG("intf %p id %p", intf, id);
1348
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001349 /* interface numbers are hardcoded in the spec */
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001350 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1351 return -ENODEV;
1352
1353 if (!id->driver_info) {
1354 const struct usb_device_id *match;
1355 match = usb_match_id(intf, blacklist_table);
1356 if (match)
1357 id = match;
1358 }
1359
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001360 if (id->driver_info == BTUSB_IGNORE)
1361 return -ENODEV;
1362
1363 if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
1364 return -ENODEV;
1365
1366 if (ignore_csr && id->driver_info & BTUSB_CSR)
1367 return -ENODEV;
1368
1369 if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
1370 return -ENODEV;
1371
Steven.Li2d25f8b2011-07-01 14:02:36 +08001372 if (id->driver_info & BTUSB_ATH3012) {
1373 struct usb_device *udev = interface_to_usbdev(intf);
1374
1375 /* Old firmware would otherwise let ath3k driver load
1376 * patch and sysconfig files */
1377 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
1378 return -ENODEV;
1379 }
1380
Sachin Kamat98921db2012-07-27 12:38:39 +05301381 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001382 if (!data)
1383 return -ENOMEM;
1384
1385 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1386 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1387
1388 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1389 data->intr_ep = ep_desc;
1390 continue;
1391 }
1392
1393 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1394 data->bulk_tx_ep = ep_desc;
1395 continue;
1396 }
1397
1398 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1399 data->bulk_rx_ep = ep_desc;
1400 continue;
1401 }
1402 }
1403
Sachin Kamat98921db2012-07-27 12:38:39 +05301404 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001405 return -ENODEV;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001406
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001407 data->cmdreq_type = USB_TYPE_CLASS;
1408
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001409 data->udev = interface_to_usbdev(intf);
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001410 data->intf = intf;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001411
1412 spin_lock_init(&data->lock);
1413
1414 INIT_WORK(&data->work, btusb_work);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001415 INIT_WORK(&data->waker, btusb_waker);
1416 spin_lock_init(&data->txlock);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001417
1418 init_usb_anchor(&data->tx_anchor);
1419 init_usb_anchor(&data->intr_anchor);
1420 init_usb_anchor(&data->bulk_anchor);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001421 init_usb_anchor(&data->isoc_anchor);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001422 init_usb_anchor(&data->deferred);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001423
1424 hdev = hci_alloc_dev();
Sachin Kamat98921db2012-07-27 12:38:39 +05301425 if (!hdev)
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001426 return -ENOMEM;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001427
Marcel Holtmannc13854c2010-02-08 15:27:07 +01001428 hdev->bus = HCI_USB;
David Herrmann155961e2012-02-09 21:58:32 +01001429 hci_set_drvdata(hdev, data);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001430
1431 data->hdev = hdev;
1432
1433 SET_HCIDEV_DEV(hdev, &intf->dev);
1434
Marcel Holtmann9f8f9622013-04-10 08:11:35 -07001435 hdev->open = btusb_open;
1436 hdev->close = btusb_close;
1437 hdev->flush = btusb_flush;
1438 hdev->send = btusb_send_frame;
1439 hdev->notify = btusb_notify;
1440
1441 if (id->driver_info & BTUSB_BCM92035)
1442 hdev->setup = btusb_setup_bcm92035;
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001443
Tedd Ho-Jeong Andffd30e2013-04-19 09:57:43 -07001444 if (id->driver_info & BTUSB_INTEL)
1445 hdev->setup = btusb_setup_intel;
1446
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001447 /* Interface numbers are hardcoded in the specification */
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001448 data->isoc = usb_ifnum_to_if(data->udev, 1);
1449
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001450 if (!reset)
Szymon Janca6c511c2012-05-23 12:35:46 +02001451 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001452
1453 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1454 if (!disable_scofix)
1455 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1456 }
1457
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001458 if (id->driver_info & BTUSB_BROKEN_ISOC)
1459 data->isoc = NULL;
1460
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001461 if (id->driver_info & BTUSB_DIGIANSWER) {
1462 data->cmdreq_type = USB_TYPE_VENDOR;
Szymon Janca6c511c2012-05-23 12:35:46 +02001463 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001464 }
1465
1466 if (id->driver_info & BTUSB_CSR) {
1467 struct usb_device *udev = data->udev;
1468
1469 /* Old firmware would otherwise execute USB reset */
1470 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
Szymon Janca6c511c2012-05-23 12:35:46 +02001471 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001472 }
1473
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001474 if (id->driver_info & BTUSB_SNIFFER) {
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001475 struct usb_device *udev = data->udev;
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001476
Marcel Holtmann7a9d4022008-11-30 12:17:26 +01001477 /* New sniffer firmware has crippled HCI interface */
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001478 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1479 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001480
1481 data->isoc = NULL;
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001482 }
1483
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001484 if (data->isoc) {
1485 err = usb_driver_claim_interface(&btusb_driver,
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001486 data->isoc, data);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001487 if (err < 0) {
1488 hci_free_dev(hdev);
Marcel Holtmann9bfa35f2008-08-18 13:23:52 +02001489 return err;
1490 }
1491 }
1492
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001493 err = hci_register_dev(hdev);
1494 if (err < 0) {
1495 hci_free_dev(hdev);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001496 return err;
1497 }
1498
1499 usb_set_intfdata(intf, data);
1500
1501 return 0;
1502}
1503
1504static void btusb_disconnect(struct usb_interface *intf)
1505{
1506 struct btusb_data *data = usb_get_intfdata(intf);
1507 struct hci_dev *hdev;
1508
1509 BT_DBG("intf %p", intf);
1510
1511 if (!data)
1512 return;
1513
1514 hdev = data->hdev;
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001515 usb_set_intfdata(data->intf, NULL);
1516
1517 if (data->isoc)
1518 usb_set_intfdata(data->isoc, NULL);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001519
1520 hci_unregister_dev(hdev);
1521
Marcel Holtmann5fbcd262008-09-23 00:16:36 +02001522 if (intf == data->isoc)
1523 usb_driver_release_interface(&btusb_driver, data->intf);
1524 else if (data->isoc)
1525 usb_driver_release_interface(&btusb_driver, data->isoc);
1526
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001527 hci_free_dev(hdev);
1528}
1529
Oliver Neukum7bee5492009-08-24 23:44:59 +02001530#ifdef CONFIG_PM
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001531static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1532{
1533 struct btusb_data *data = usb_get_intfdata(intf);
1534
1535 BT_DBG("intf %p", intf);
1536
1537 if (data->suspend_count++)
1538 return 0;
1539
Oliver Neukum7bee5492009-08-24 23:44:59 +02001540 spin_lock_irq(&data->txlock);
Alan Stern5b1b0b82011-08-19 23:49:48 +02001541 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
Oliver Neukum7bee5492009-08-24 23:44:59 +02001542 set_bit(BTUSB_SUSPENDING, &data->flags);
1543 spin_unlock_irq(&data->txlock);
1544 } else {
1545 spin_unlock_irq(&data->txlock);
1546 data->suspend_count--;
1547 return -EBUSY;
1548 }
1549
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001550 cancel_work_sync(&data->work);
1551
Oliver Neukum7bee5492009-08-24 23:44:59 +02001552 btusb_stop_traffic(data);
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001553 usb_kill_anchored_urbs(&data->tx_anchor);
1554
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001555 return 0;
1556}
1557
Oliver Neukum7bee5492009-08-24 23:44:59 +02001558static void play_deferred(struct btusb_data *data)
1559{
1560 struct urb *urb;
1561 int err;
1562
1563 while ((urb = usb_get_from_anchor(&data->deferred))) {
1564 err = usb_submit_urb(urb, GFP_ATOMIC);
1565 if (err < 0)
1566 break;
1567
1568 data->tx_in_flight++;
1569 }
1570 usb_scuttle_anchored_urbs(&data->deferred);
1571}
1572
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001573static int btusb_resume(struct usb_interface *intf)
1574{
1575 struct btusb_data *data = usb_get_intfdata(intf);
1576 struct hci_dev *hdev = data->hdev;
Oliver Neukum7bee5492009-08-24 23:44:59 +02001577 int err = 0;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001578
1579 BT_DBG("intf %p", intf);
1580
1581 if (--data->suspend_count)
1582 return 0;
1583
1584 if (!test_bit(HCI_RUNNING, &hdev->flags))
Oliver Neukum7bee5492009-08-24 23:44:59 +02001585 goto done;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001586
1587 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1588 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1589 if (err < 0) {
1590 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001591 goto failed;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001592 }
1593 }
1594
1595 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
Marcel Holtmann43c2e572009-02-04 17:41:38 +01001596 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1597 if (err < 0) {
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001598 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
Oliver Neukum7bee5492009-08-24 23:44:59 +02001599 goto failed;
1600 }
1601
1602 btusb_submit_bulk_urb(hdev, GFP_NOIO);
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001603 }
1604
1605 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1606 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1607 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1608 else
1609 btusb_submit_isoc_urb(hdev, GFP_NOIO);
1610 }
1611
Oliver Neukum7bee5492009-08-24 23:44:59 +02001612 spin_lock_irq(&data->txlock);
1613 play_deferred(data);
1614 clear_bit(BTUSB_SUSPENDING, &data->flags);
1615 spin_unlock_irq(&data->txlock);
1616 schedule_work(&data->work);
1617
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001618 return 0;
Oliver Neukum7bee5492009-08-24 23:44:59 +02001619
1620failed:
1621 usb_scuttle_anchored_urbs(&data->deferred);
1622done:
1623 spin_lock_irq(&data->txlock);
1624 clear_bit(BTUSB_SUSPENDING, &data->flags);
1625 spin_unlock_irq(&data->txlock);
1626
1627 return err;
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001628}
Oliver Neukum7bee5492009-08-24 23:44:59 +02001629#endif
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001630
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001631static struct usb_driver btusb_driver = {
1632 .name = "btusb",
1633 .probe = btusb_probe,
1634 .disconnect = btusb_disconnect,
Oliver Neukum7bee5492009-08-24 23:44:59 +02001635#ifdef CONFIG_PM
Marcel Holtmann6a88adf2008-11-30 12:17:14 +01001636 .suspend = btusb_suspend,
1637 .resume = btusb_resume,
Oliver Neukum7bee5492009-08-24 23:44:59 +02001638#endif
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001639 .id_table = btusb_table,
Oliver Neukum7bee5492009-08-24 23:44:59 +02001640 .supports_autosuspend = 1,
Sarah Sharpe1f12eb2012-04-23 10:08:51 -07001641 .disable_hub_initiated_lpm = 1,
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001642};
1643
Greg Kroah-Hartman93f15082011-11-18 09:47:34 -08001644module_usb_driver(btusb_driver);
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001645
Marcel Holtmanncfeb4142008-08-07 22:26:56 +02001646module_param(ignore_dga, bool, 0644);
1647MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1648
1649module_param(ignore_csr, bool, 0644);
1650MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1651
1652module_param(ignore_sniffer, bool, 0644);
1653MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1654
1655module_param(disable_scofix, bool, 0644);
1656MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1657
1658module_param(force_scofix, bool, 0644);
1659MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1660
1661module_param(reset, bool, 0644);
1662MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1663
Marcel Holtmann5e23b922007-10-20 14:12:34 +02001664MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1665MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1666MODULE_VERSION(VERSION);
1667MODULE_LICENSE("GPL");