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" , __func__ , ## arg) 58 #define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg) 59 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); 124 int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); 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 { 133 __u8 pkt_type; 134 __u8 incoming; 135 }; 136 #define bt_cb(skb) ((struct bt_skb_cb *)(skb->cb)) 137 138 static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how) 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 } 170 171 int bt_err(__u16 code); 172 173 extern int hci_sock_init(void); 174 extern void hci_sock_cleanup(void); 175 176 extern int bt_sysfs_init(void); 177 extern void bt_sysfs_cleanup(void); 178 179 extern struct class *bt_class; 180 181 #endif /* __BLUETOOTH_H */ 182