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 extern struct proc_dir_entry *proc_bt; 61 62 /* Connection and socket states */ 63 enum { 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 */ 82 typedef 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 */ 90 static inline int bacmp(bdaddr_t *ba1, bdaddr_t *ba2) 91 { 92 return memcmp(ba1, ba2, sizeof(bdaddr_t)); 93 } 94 static inline void bacpy(bdaddr_t *dst, bdaddr_t *src) 95 { 96 memcpy(dst, src, sizeof(bdaddr_t)); 97 } 98 99 void baswap(bdaddr_t *dst, bdaddr_t *src); 100 char *batostr(bdaddr_t *ba); 101 bdaddr_t *strtoba(char *str); 102 103 /* Common socket structures and functions */ 104 105 #define bt_sk(__sk) ((struct bt_sock *) __sk) 106 107 struct 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 }; 114 115 struct bt_sock_list { 116 struct hlist_head head; 117 rwlock_t lock; 118 }; 119 120 int bt_sock_register(int proto, struct net_proto_family *ops); 121 int bt_sock_unregister(int proto); 122 void bt_sock_link(struct bt_sock_list *l, struct sock *s); 123 void bt_sock_unlink(struct bt_sock_list *l, struct sock *s); 124 int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags); 125 uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait); 126 int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo); 127 128 void bt_accept_enqueue(struct sock *parent, struct sock *sk); 129 void bt_accept_unlink(struct sock *sk); 130 struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock); 131 132 /* Skb helpers */ 133 struct bt_skb_cb { 134 __u8 pkt_type; 135 __u8 incoming; 136 }; 137 #define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb)) 138 139 static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t 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 } 149 150 static 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 } 162 163 static 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 } 171 172 int bt_err(__u16 code); 173 174 #endif /* __BLUETOOTH_H */ 175