181 lines
4.8 KiB
C
181 lines
4.8 KiB
C
/*
|
|
BlueZ - Bluetooth protocol stack for Linux
|
|
Copyright (C) 2000-2001 Qualcomm Incorporated
|
|
|
|
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License version 2 as
|
|
published by the Free Software Foundation;
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
|
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
|
|
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
|
|
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
|
|
SOFTWARE IS DISCLAIMED.
|
|
*/
|
|
|
|
#ifndef __BLUETOOTH_H
|
|
#define __BLUETOOTH_H
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/byteorder.h>
|
|
#include <linux/list.h>
|
|
#include <linux/poll.h>
|
|
#include <net/sock.h>
|
|
|
|
#ifndef AF_BLUETOOTH
|
|
#define AF_BLUETOOTH 31
|
|
#define PF_BLUETOOTH AF_BLUETOOTH
|
|
#endif
|
|
|
|
/* Reserv for core and drivers use */
|
|
#define BT_SKB_RESERVE 8
|
|
|
|
#define BTPROTO_L2CAP 0
|
|
#define BTPROTO_HCI 1
|
|
#define BTPROTO_SCO 2
|
|
#define BTPROTO_RFCOMM 3
|
|
#define BTPROTO_BNEP 4
|
|
#define BTPROTO_CMTP 5
|
|
#define BTPROTO_HIDP 6
|
|
#define BTPROTO_AVDTP 7
|
|
|
|
#define SOL_HCI 0
|
|
#define SOL_L2CAP 6
|
|
#define SOL_SCO 17
|
|
#define SOL_RFCOMM 18
|
|
|
|
#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
|
|
#define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __FUNCTION__ , ## arg)
|
|
#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __FUNCTION__ , ## arg)
|
|
|
|
/* Connection and socket states */
|
|
enum {
|
|
BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
|
|
BT_OPEN,
|
|
BT_BOUND,
|
|
BT_LISTEN,
|
|
BT_CONNECT,
|
|
BT_CONNECT2,
|
|
BT_CONFIG,
|
|
BT_DISCONN,
|
|
BT_CLOSED
|
|
};
|
|
|
|
/* Endianness conversions */
|
|
#define htobs(a) __cpu_to_le16(a)
|
|
#define htobl(a) __cpu_to_le32(a)
|
|
#define btohs(a) __le16_to_cpu(a)
|
|
#define btohl(a) __le32_to_cpu(a)
|
|
|
|
/* BD Address */
|
|
typedef struct {
|
|
__u8 b[6];
|
|
} __attribute__((packed)) bdaddr_t;
|
|
|
|
#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
|
|
#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
|
|
|
|
/* Copy, swap, convert BD Address */
|
|
static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
|
|
{
|
|
return memcmp(ba1, ba2, sizeof(bdaddr_t));
|
|
}
|
|
static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
|
|
{
|
|
memcpy(dst, src, sizeof(bdaddr_t));
|
|
}
|
|
|
|
void baswap(bdaddr_t *dst, bdaddr_t *src);
|
|
char *batostr(bdaddr_t *ba);
|
|
bdaddr_t *strtoba(char *str);
|
|
|
|
/* Common socket structures and functions */
|
|
|
|
#define bt_sk(__sk) ((struct bt_sock *) __sk)
|
|
|
|
struct bt_sock {
|
|
struct sock sk;
|
|
bdaddr_t src;
|
|
bdaddr_t dst;
|
|
struct list_head accept_q;
|
|
struct sock *parent;
|
|
};
|
|
|
|
struct bt_sock_list {
|
|
struct hlist_head head;
|
|
rwlock_t lock;
|
|
};
|
|
|
|
int bt_sock_register(int proto, struct net_proto_family *ops);
|
|
int bt_sock_unregister(int proto);
|
|
void bt_sock_link(struct bt_sock_list *l, struct sock *s);
|
|
void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
|
|
int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags);
|
|
uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
|
|
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
|
|
|
|
void bt_accept_enqueue(struct sock *parent, struct sock *sk);
|
|
void bt_accept_unlink(struct sock *sk);
|
|
struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
|
|
|
|
/* Skb helpers */
|
|
struct bt_skb_cb {
|
|
__u8 pkt_type;
|
|
__u8 incoming;
|
|
};
|
|
#define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb))
|
|
|
|
static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
|
|
{
|
|
struct sk_buff *skb;
|
|
|
|
if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
|
|
skb_reserve(skb, BT_SKB_RESERVE);
|
|
bt_cb(skb)->incoming = 0;
|
|
}
|
|
return skb;
|
|
}
|
|
|
|
static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len,
|
|
int nb, int *err)
|
|
{
|
|
struct sk_buff *skb;
|
|
|
|
if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
|
|
skb_reserve(skb, BT_SKB_RESERVE);
|
|
bt_cb(skb)->incoming = 0;
|
|
}
|
|
|
|
return skb;
|
|
}
|
|
|
|
static inline int skb_frags_no(struct sk_buff *skb)
|
|
{
|
|
register struct sk_buff *frag = skb_shinfo(skb)->frag_list;
|
|
register int n = 1;
|
|
|
|
for (; frag; frag=frag->next, n++);
|
|
return n;
|
|
}
|
|
|
|
int bt_err(__u16 code);
|
|
|
|
extern int hci_sock_init(void);
|
|
extern int hci_sock_cleanup(void);
|
|
|
|
extern int bt_sysfs_init(void);
|
|
extern void bt_sysfs_cleanup(void);
|
|
|
|
extern struct class *bt_class;
|
|
|
|
#endif /* __BLUETOOTH_H */
|