Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 __BLUETOOTH_H
26#define __BLUETOOTH_H
27
28#include <asm/types.h>
29#include <asm/byteorder.h>
30#include <linux/list.h>
31#include <linux/poll.h>
32#include <net/sock.h>
33
34#ifndef AF_BLUETOOTH
35#define AF_BLUETOOTH 31
36#define PF_BLUETOOTH AF_BLUETOOTH
37#endif
38
39/* Reserv for core and drivers use */
40#define BT_SKB_RESERVE 8
41
42#define BTPROTO_L2CAP 0
43#define BTPROTO_HCI 1
44#define BTPROTO_SCO 2
45#define BTPROTO_RFCOMM 3
46#define BTPROTO_BNEP 4
47#define BTPROTO_CMTP 5
48#define BTPROTO_HIDP 6
49#define BTPROTO_AVDTP 7
50
51#define SOL_HCI 0
52#define SOL_L2CAP 6
53#define SOL_SCO 17
54#define SOL_RFCOMM 18
55
56#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
57#define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __FUNCTION__ , ## arg)
58#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __FUNCTION__ , ## arg)
59
60extern struct proc_dir_entry *proc_bt;
61
62/* Connection and socket states */
63enum {
64 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
65 BT_OPEN,
66 BT_BOUND,
67 BT_LISTEN,
68 BT_CONNECT,
69 BT_CONNECT2,
70 BT_CONFIG,
71 BT_DISCONN,
72 BT_CLOSED
73};
74
75/* Endianness conversions */
76#define htobs(a) __cpu_to_le16(a)
77#define htobl(a) __cpu_to_le32(a)
78#define btohs(a) __le16_to_cpu(a)
79#define btohl(a) __le32_to_cpu(a)
80
81/* BD Address */
82typedef struct {
83 __u8 b[6];
84} __attribute__((packed)) bdaddr_t;
85
86#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
87#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
88
89/* Copy, swap, convert BD Address */
90static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
91{
92 return memcmp(ba1, ba2, sizeof(bdaddr_t));
93}
94static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
95{
96 memcpy(dst, src, sizeof(bdaddr_t));
97}
98
99void baswap(bdaddr_t *dst, bdaddr_t *src);
100char *batostr(bdaddr_t *ba);
101bdaddr_t *strtoba(char *str);
102
103/* Common socket structures and functions */
104
105#define bt_sk(__sk) ((struct bt_sock *) __sk)
106
107struct bt_sock {
108 struct sock sk;
109 bdaddr_t src;
110 bdaddr_t dst;
111 struct list_head accept_q;
112 struct sock *parent;
113};
114
115struct bt_sock_list {
116 struct hlist_head head;
117 rwlock_t lock;
118};
119
120int bt_sock_register(int proto, struct net_proto_family *ops);
121int bt_sock_unregister(int proto);
122void bt_sock_link(struct bt_sock_list *l, struct sock *s);
123void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
124int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags);
125uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
126int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
127
128void bt_accept_enqueue(struct sock *parent, struct sock *sk);
129void bt_accept_unlink(struct sock *sk);
130struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
131
132/* Skb helpers */
133struct bt_skb_cb {
134 __u8 pkt_type;
135 __u8 incoming;
136};
137#define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb))
138
139static inline struct sk_buff *bt_skb_alloc(unsigned int len, unsigned int __nocast how)
140{
141 struct sk_buff *skb;
142
143 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
144 skb_reserve(skb, BT_SKB_RESERVE);
145 bt_cb(skb)->incoming = 0;
146 }
147 return skb;
148}
149
150static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len,
151 int nb, int *err)
152{
153 struct sk_buff *skb;
154
155 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
156 skb_reserve(skb, BT_SKB_RESERVE);
157 bt_cb(skb)->incoming = 0;
158 }
159
160 return skb;
161}
162
163static inline int skb_frags_no(struct sk_buff *skb)
164{
165 register struct sk_buff *frag = skb_shinfo(skb)->frag_list;
166 register int n = 1;
167
168 for (; frag; frag=frag->next, n++);
169 return n;
170}
171
172int bt_err(__u16 code);
173
174#endif /* __BLUETOOTH_H */