xref: /openbmc/linux/include/net/bluetooth/sco.h (revision 31b90347)
1 /*
2    BlueZ - Bluetooth protocol stack for Linux
3    Copyright (C) 2000-2001 Qualcomm Incorporated
4 
5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License version 2 as
9    published by the Free Software Foundation;
10 
11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 
20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22    SOFTWARE IS DISCLAIMED.
23 */
24 
25 #ifndef __SCO_H
26 #define __SCO_H
27 
28 /* SCO defaults */
29 #define SCO_DEFAULT_MTU		500
30 #define SCO_DEFAULT_FLUSH_TO	0xFFFF
31 
32 #define SCO_CONN_TIMEOUT	(HZ * 40)
33 #define SCO_DISCONN_TIMEOUT	(HZ * 2)
34 #define SCO_CONN_IDLE_TIMEOUT	(HZ * 60)
35 
36 /* SCO socket address */
37 struct sockaddr_sco {
38 	sa_family_t	sco_family;
39 	bdaddr_t	sco_bdaddr;
40 };
41 
42 /* SCO socket options */
43 #define SCO_OPTIONS	0x01
44 struct sco_options {
45 	__u16 mtu;
46 };
47 
48 #define SCO_CONNINFO	0x02
49 struct sco_conninfo {
50 	__u16 hci_handle;
51 	__u8  dev_class[3];
52 };
53 
54 /* ---- SCO connections ---- */
55 struct sco_conn {
56 	struct hci_conn	*hcon;
57 
58 	spinlock_t	lock;
59 	struct sock	*sk;
60 
61 	unsigned int    mtu;
62 };
63 
64 #define sco_conn_lock(c)	spin_lock(&c->lock);
65 #define sco_conn_unlock(c)	spin_unlock(&c->lock);
66 
67 /* ----- SCO socket info ----- */
68 #define sco_pi(sk) ((struct sco_pinfo *) sk)
69 
70 struct sco_pinfo {
71 	struct bt_sock	bt;
72 	bdaddr_t	src;
73 	bdaddr_t	dst;
74 	__u32		flags;
75 	__u16		setting;
76 	struct sco_conn	*conn;
77 };
78 
79 #endif /* __SCO_H */
80