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 60 #ifdef HCI_DATA_DUMP 61 #define BT_DMP(buf, len) bt_dump(__FUNCTION__, buf, len) 62 #else 63 #define BT_DMP(D...) 64 #endif 65 66 extern struct proc_dir_entry *proc_bt; 67 68 /* Connection and socket states */ 69 enum { 70 BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */ 71 BT_OPEN, 72 BT_BOUND, 73 BT_LISTEN, 74 BT_CONNECT, 75 BT_CONNECT2, 76 BT_CONFIG, 77 BT_DISCONN, 78 BT_CLOSED 79 }; 80 81 /* Endianness conversions */ 82 #define htobs(a) __cpu_to_le16(a) 83 #define htobl(a) __cpu_to_le32(a) 84 #define btohs(a) __le16_to_cpu(a) 85 #define btohl(a) __le32_to_cpu(a) 86 87 /* BD Address */ 88 typedef struct { 89 __u8 b[6]; 90 } __attribute__((packed)) bdaddr_t; 91 92 #define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}}) 93 #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}}) 94 95 /* Copy, swap, convert BD Address */ 96 static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2) 97 { 98 return memcmp(ba1, ba2, sizeof(bdaddr_t)); 99 } 100 static inline void bacpy(bdaddr_t *dst, bdaddr_t *src) 101 { 102 memcpy(dst, src, sizeof(bdaddr_t)); 103 } 104 105 void baswap(bdaddr_t *dst, bdaddr_t *src); 106 char *batostr(bdaddr_t *ba); 107 bdaddr_t *strtoba(char *str); 108 109 /* Common socket structures and functions */ 110 111 #define bt_sk(__sk) ((struct bt_sock *) __sk) 112 113 struct bt_sock { 114 struct sock sk; 115 bdaddr_t src; 116 bdaddr_t dst; 117 struct list_head accept_q; 118 struct sock *parent; 119 }; 120 121 struct bt_sock_list { 122 struct hlist_head head; 123 rwlock_t lock; 124 }; 125 126 int bt_sock_register(int proto, struct net_proto_family *ops); 127 int bt_sock_unregister(int proto); 128 void bt_sock_link(struct bt_sock_list *l, struct sock *s); 129 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s); 130 int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags); 131 uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait); 132 int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo); 133 134 void bt_accept_enqueue(struct sock *parent, struct sock *sk); 135 void bt_accept_unlink(struct sock *sk); 136 struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock); 137 138 /* Skb helpers */ 139 struct bt_skb_cb { 140 int incoming; 141 }; 142 #define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb)) 143 144 static inline struct sk_buff *bt_skb_alloc(unsigned int len, int how) 145 { 146 struct sk_buff *skb; 147 148 if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) { 149 skb_reserve(skb, BT_SKB_RESERVE); 150 bt_cb(skb)->incoming = 0; 151 } 152 return skb; 153 } 154 155 static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long len, 156 int nb, int *err) 157 { 158 struct sk_buff *skb; 159 160 if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) { 161 skb_reserve(skb, BT_SKB_RESERVE); 162 bt_cb(skb)->incoming = 0; 163 } 164 165 return skb; 166 } 167 168 static inline int skb_frags_no(struct sk_buff *skb) 169 { 170 register struct sk_buff *frag = skb_shinfo(skb)->frag_list; 171 register int n = 1; 172 173 for (; frag; frag=frag->next, n++); 174 return n; 175 } 176 177 void bt_dump(char *pref, __u8 *buf, int count); 178 179 int bt_err(__u16 code); 180 181 #endif /* __BLUETOOTH_H */ 182