include/net/bluetooth/sco.h

   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         bdaddr_t        *dst;
  59         bdaddr_t        *src;
  60
  61         spinlock_t      lock;
  62         struct sock     *sk;
  63
  64         unsigned int    mtu;
  65 };
  66
  67 #define sco_conn_lock(c)        spin_lock(&c->lock);
  68 #define sco_conn_unlock(c)      spin_unlock(&c->lock);
  69
  70 /* ----- SCO socket info ----- */
  71 #define sco_pi(sk) ((struct sco_pinfo *) sk)
  72
  73 struct sco_pinfo {
  74         struct bt_sock  bt;
  75         __u32           flags;
  76         struct sco_conn *conn;
  77 };
  78
  79 #endif /* __SCO_H */