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1da177e4 LT |
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) | |
a418b893 MH |
57 | #define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg) |
58 | #define BT_DBG(fmt, arg...) pr_debug("%s: " fmt "\n" , __func__ , ## arg) | |
1da177e4 | 59 | |
1da177e4 LT |
60 | /* Connection and socket states */ |
61 | enum { | |
62 | BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */ | |
63 | BT_OPEN, | |
64 | BT_BOUND, | |
65 | BT_LISTEN, | |
66 | BT_CONNECT, | |
67 | BT_CONNECT2, | |
68 | BT_CONFIG, | |
69 | BT_DISCONN, | |
70 | BT_CLOSED | |
71 | }; | |
72 | ||
73 | /* Endianness conversions */ | |
74 | #define htobs(a) __cpu_to_le16(a) | |
75 | #define htobl(a) __cpu_to_le32(a) | |
76 | #define btohs(a) __le16_to_cpu(a) | |
77 | #define btohl(a) __le32_to_cpu(a) | |
78 | ||
79 | /* BD Address */ | |
80 | typedef struct { | |
81 | __u8 b[6]; | |
82 | } __attribute__((packed)) bdaddr_t; | |
83 | ||
84 | #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}}) | |
85 | #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}}) | |
86 | ||
87 | /* Copy, swap, convert BD Address */ | |
88 | static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2) | |
89 | { | |
90 | return memcmp(ba1, ba2, sizeof(bdaddr_t)); | |
91 | } | |
92 | static inline void bacpy(bdaddr_t *dst, bdaddr_t *src) | |
93 | { | |
94 | memcpy(dst, src, sizeof(bdaddr_t)); | |
95 | } | |
96 | ||
97 | void baswap(bdaddr_t *dst, bdaddr_t *src); | |
98 | char *batostr(bdaddr_t *ba); | |
99 | bdaddr_t *strtoba(char *str); | |
100 | ||
101 | /* Common socket structures and functions */ | |
102 | ||
103 | #define bt_sk(__sk) ((struct bt_sock *) __sk) | |
104 | ||
105 | struct bt_sock { | |
106 | struct sock sk; | |
107 | bdaddr_t src; | |
108 | bdaddr_t dst; | |
109 | struct list_head accept_q; | |
110 | struct sock *parent; | |
111 | }; | |
112 | ||
113 | struct bt_sock_list { | |
114 | struct hlist_head head; | |
115 | rwlock_t lock; | |
116 | }; | |
117 | ||
118 | int bt_sock_register(int proto, struct net_proto_family *ops); | |
119 | int bt_sock_unregister(int proto); | |
120 | void bt_sock_link(struct bt_sock_list *l, struct sock *s); | |
121 | void bt_sock_unlink(struct bt_sock_list *l, struct sock *s); | |
122 | int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags); | |
123 | uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait); | |
3241ad82 | 124 | int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); |
1da177e4 LT |
125 | int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo); |
126 | ||
127 | void bt_accept_enqueue(struct sock *parent, struct sock *sk); | |
128 | void bt_accept_unlink(struct sock *sk); | |
129 | struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock); | |
130 | ||
131 | /* Skb helpers */ | |
132 | struct bt_skb_cb { | |
0d48d939 MH |
133 | __u8 pkt_type; |
134 | __u8 incoming; | |
1da177e4 LT |
135 | }; |
136 | #define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb)) | |
137 | ||
dd0fc66f | 138 | static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how) |
1da177e4 LT |
139 | { |
140 | struct sk_buff *skb; | |
141 | ||
142 | if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) { | |
143 | skb_reserve(skb, BT_SKB_RESERVE); | |
144 | bt_cb(skb)->incoming = 0; | |
145 | } | |
146 | return skb; | |
147 | } | |
148 | ||
149 | static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len, | |
150 | int nb, int *err) | |
151 | { | |
152 | struct sk_buff *skb; | |
153 | ||
154 | if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) { | |
155 | skb_reserve(skb, BT_SKB_RESERVE); | |
156 | bt_cb(skb)->incoming = 0; | |
157 | } | |
158 | ||
159 | return skb; | |
160 | } | |
161 | ||
162 | static inline int skb_frags_no(struct sk_buff *skb) | |
163 | { | |
164 | register struct sk_buff *frag = skb_shinfo(skb)->frag_list; | |
165 | register int n = 1; | |
166 | ||
167 | for (; frag; frag=frag->next, n++); | |
168 | return n; | |
169 | } | |
170 | ||
1da177e4 LT |
171 | int bt_err(__u16 code); |
172 | ||
6516455d | 173 | extern int hci_sock_init(void); |
04005dd9 | 174 | extern void hci_sock_cleanup(void); |
6516455d MH |
175 | |
176 | extern int bt_sysfs_init(void); | |
177 | extern void bt_sysfs_cleanup(void); | |
178 | ||
a91f2e39 | 179 | extern struct class *bt_class; |
be9d1227 | 180 | |
1da177e4 | 181 | #endif /* __BLUETOOTH_H */ |