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 /*
26 * $Id: bluetooth.h,v 1.9 2002/05/06 21:11:55 maxk Exp $
27 */
28
29 #ifndef __BLUETOOTH_H
30 #define __BLUETOOTH_H
31
32 #include <asm/types.h>
33 #include <asm/byteorder.h>
34 #include <linux/poll.h>
35 #include <net/sock.h>
36
37 #ifndef AF_BLUETOOTH
38 #define AF_BLUETOOTH 31
39 #define PF_BLUETOOTH AF_BLUETOOTH
40 #endif
41
42 /* Reserv for core and drivers use */
43 #define BLUEZ_SKB_RESERVE 8
44
45 #ifndef MIN
46 #define MIN(a,b) ((a) < (b) ? (a) : (b))
47 #endif
48
49 #define BTPROTO_L2CAP 0
50 #define BTPROTO_HCI 1
51 #define BTPROTO_SCO 2
52 #define BTPROTO_RFCOMM 3
53 #define BTPROTO_BNEP 4
54 #define BTPROTO_CMTP 5
55 #define BTPROTO_HIDP 6
56
57 #define SOL_HCI 0
58 #define SOL_L2CAP 6
59 #define SOL_SCO 17
60 #define SOL_RFCOMM 18
61
62 /* Debugging */
63 #ifdef CONFIG_BLUEZ_DEBUG
64
65 #define HCI_CORE_DEBUG 1
66 #define HCI_SOCK_DEBUG 1
67 #define HCI_UART_DEBUG 1
68 #define HCI_USB_DEBUG 1
69 //#define HCI_DATA_DUMP 1
70
71 #define L2CAP_DEBUG 1
72 #define SCO_DEBUG 1
73 #define AF_BLUETOOTH_DEBUG 1
74
75 #endif /* CONFIG_BLUEZ_DEBUG */
76
77 extern void bluez_dump(char *pref, __u8 *buf, int count);
78
79 #if __GNUC__ <= 2 && __GNUC_MINOR__ < 95
80 #define __func__ __FUNCTION__
81 #endif
82
83 #define BT_INFO(fmt, arg...) printk(KERN_INFO fmt "\n" , ## arg)
84 #define BT_DBG(fmt, arg...) printk(KERN_INFO "%s: " fmt "\n" , __func__ , ## arg)
85 #define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
86
87 #ifdef HCI_DATA_DUMP
88 #define BT_DMP(buf, len) bluez_dump(__func__, buf, len)
89 #else
90 #define BT_DMP(D...)
91 #endif
92
93 /* Connection and socket states */
94 enum {
95 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
96 BT_OPEN,
97 BT_BOUND,
98 BT_LISTEN,
99 BT_CONNECT,
100 BT_CONNECT2,
101 BT_CONFIG,
102 BT_DISCONN,
103 BT_CLOSED
104 };
105
106 /* Endianness conversions */
107 #define htobs(a) __cpu_to_le16(a)
108 #define htobl(a) __cpu_to_le32(a)
109 #define btohs(a) __le16_to_cpu(a)
110 #define btohl(a) __le32_to_cpu(a)
111
112 /* BD Address */
113 typedef struct {
114 __u8 b[6];
115 } __attribute__((packed)) bdaddr_t;
116
117 #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
118 #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
119
120 /* Copy, swap, convert BD Address */
bacmp(bdaddr_t * ba1,bdaddr_t * ba2)121 static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2)
122 {
123 return memcmp(ba1, ba2, sizeof(bdaddr_t));
124 }
bacpy(bdaddr_t * dst,bdaddr_t * src)125 static inline void bacpy(bdaddr_t *dst, bdaddr_t *src)
126 {
127 memcpy(dst, src, sizeof(bdaddr_t));
128 }
129
130 void baswap(bdaddr_t *dst, bdaddr_t *src);
131 char *batostr(bdaddr_t *ba);
132 bdaddr_t *strtoba(char *str);
133
134 /* Common socket structures and functions */
135
136 #define bluez_pi(sk) ((struct bluez_pinfo *) &sk->protinfo)
137 #define bluez_sk(pi) ((struct sock *) \
138 ((void *)pi - (unsigned long)(&((struct sock *)0)->protinfo)))
139
140 struct bluez_pinfo {
141 bdaddr_t src;
142 bdaddr_t dst;
143
144 struct list_head accept_q;
145 struct sock *parent;
146 };
147
148 struct bluez_sock_list {
149 struct sock *head;
150 rwlock_t lock;
151 };
152
153 int bluez_sock_register(int proto, struct net_proto_family *ops);
154 int bluez_sock_unregister(int proto);
155 void bluez_sock_init(struct socket *sock, struct sock *sk);
156 void bluez_sock_link(struct bluez_sock_list *l, struct sock *s);
157 void bluez_sock_unlink(struct bluez_sock_list *l, struct sock *s);
158 int bluez_sock_recvmsg(struct socket *sock, struct msghdr *msg, int len, int flags, struct scm_cookie *scm);
159 uint bluez_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
160 int bluez_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
161
162 void bluez_accept_enqueue(struct sock *parent, struct sock *sk);
163 struct sock * bluez_accept_dequeue(struct sock *parent, struct socket *newsock);
164
165 /* Skb helpers */
166 struct bluez_skb_cb {
167 int incomming;
168 };
169 #define bluez_cb(skb) ((struct bluez_skb_cb *)(skb->cb))
170
bluez_skb_alloc(unsigned int len,int how)171 static inline struct sk_buff *bluez_skb_alloc(unsigned int len, int how)
172 {
173 struct sk_buff *skb;
174
175 if ((skb = alloc_skb(len + BLUEZ_SKB_RESERVE, how))) {
176 skb_reserve(skb, BLUEZ_SKB_RESERVE);
177 bluez_cb(skb)->incomming = 0;
178 }
179 return skb;
180 }
181
bluez_skb_send_alloc(struct sock * sk,unsigned long len,int nb,int * err)182 static inline struct sk_buff *bluez_skb_send_alloc(struct sock *sk, unsigned long len,
183 int nb, int *err)
184 {
185 struct sk_buff *skb;
186
187 if ((skb = sock_alloc_send_skb(sk, len + BLUEZ_SKB_RESERVE, nb, err))) {
188 skb_reserve(skb, BLUEZ_SKB_RESERVE);
189 bluez_cb(skb)->incomming = 0;
190 }
191
192 return skb;
193 }
194
skb_frags_no(struct sk_buff * skb)195 static inline int skb_frags_no(struct sk_buff *skb)
196 {
197 register struct sk_buff *frag = skb_shinfo(skb)->frag_list;
198 register int n = 1;
199
200 for (; frag; frag=frag->next, n++);
201 return n;
202 }
203
204 int hci_core_init(void);
205 int hci_core_cleanup(void);
206 int hci_sock_init(void);
207 int hci_sock_cleanup(void);
208
209 int bterr(__u16 code);
210
211 #ifndef MODULE_LICENSE
212 #define MODULE_LICENSE(x)
213 #endif
214
215 #ifndef list_for_each_safe
216 #define list_for_each_safe(pos, n, head) \
217 for (pos = (head)->next, n = pos->next; pos != (head); \
218 pos = n, n = pos->next)
219 #endif
220
221 #endif /* __BLUETOOTH_H */
222