/* BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2000-2001 Qualcomm Incorporated Written 2000,2001 by Maxim Krasnyansky This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. */ /* * $Id: hci_core.h,v 1.1.1.1 2003/06/23 22:18:43 jharrell Exp $ */ #ifndef __HCI_CORE_H #define __HCI_CORE_H #include /* HCI upper protocols */ #define HCI_MAX_PROTO 1 #define HCI_PROTO_L2CAP 0 #define HCI_INIT_TIMEOUT (HZ * 10) /* ----- Inquiry cache ----- */ #define INQUIRY_CACHE_AGE_MAX (HZ*5) // 5 seconds #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds struct inquiry_entry { struct inquiry_entry *next; __u32 timestamp; inquiry_info info; }; struct inquiry_cache { spinlock_t lock; __u32 timestamp; struct inquiry_entry *list; }; static inline void inquiry_cache_init(struct inquiry_cache *cache) { spin_lock_init(&cache->lock); cache->list = NULL; } static inline void inquiry_cache_lock(struct inquiry_cache *cache) { spin_lock(&cache->lock); } static inline void inquiry_cache_unlock(struct inquiry_cache *cache) { spin_unlock(&cache->lock); } static inline void inquiry_cache_lock_bh(struct inquiry_cache *cache) { spin_lock_bh(&cache->lock); } static inline void inquiry_cache_unlock_bh(struct inquiry_cache *cache) { spin_unlock_bh(&cache->lock); } static inline long inquiry_cache_age(struct inquiry_cache *cache) { return jiffies - cache->timestamp; } static inline long inquiry_entry_age(struct inquiry_entry *e) { return jiffies - e->timestamp; } extern void inquiry_cache_flush(struct inquiry_cache *cache); struct hci_dev; /* ----- HCI Connections ----- */ struct hci_conn { struct list_head list; bdaddr_t dst; __u16 handle; __u8 type; unsigned int sent; struct hci_dev *hdev; void *l2cap_data; void *priv; struct sk_buff_head data_q; }; struct conn_hash { struct list_head list; spinlock_t lock; unsigned int num; }; static inline void conn_hash_init(struct conn_hash *h) { INIT_LIST_HEAD(&h->list); spin_lock_init(&h->lock); h->num = 0; } static inline void conn_hash_lock(struct conn_hash *h) { spin_lock(&h->lock); } static inline void conn_hash_unlock(struct conn_hash *h) { spin_unlock(&h->lock); } static inline void __conn_hash_add(struct conn_hash *h, __u16 handle, struct hci_conn *c) { list_add(&c->list, &h->list); h->num++; } static inline void conn_hash_add(struct conn_hash *h, __u16 handle, struct hci_conn *c) { conn_hash_lock(h); __conn_hash_add(h, handle, c); conn_hash_unlock(h); } static inline void __conn_hash_del(struct conn_hash *h, struct hci_conn *c) { list_del(&c->list); h->num--; } static inline void conn_hash_del(struct conn_hash *h, struct hci_conn *c) { conn_hash_lock(h); __conn_hash_del(h, c); conn_hash_unlock(h); } static inline struct hci_conn *__conn_hash_lookup(struct conn_hash *h, __u16 handle) { register struct list_head *p; register struct hci_conn *c; list_for_each(p, &h->list) { c = list_entry(p, struct hci_conn, list); if (c->handle == handle) return c; } return NULL; } static inline struct hci_conn *conn_hash_lookup(struct conn_hash *h, __u16 handle) { struct hci_conn *conn; conn_hash_lock(h); conn = __conn_hash_lookup(h, handle); conn_hash_unlock(h); return conn; } /* ----- HCI Devices ----- */ struct hci_dev { atomic_t refcnt; char name[8]; __u32 flags; __u16 id; __u8 type; bdaddr_t bdaddr; __u8 features[8]; __u16 pkt_type; atomic_t cmd_cnt; unsigned int acl_cnt; unsigned int sco_cnt; unsigned int acl_mtu; unsigned int sco_mtu; unsigned int acl_max; unsigned int sco_max; void *driver_data; void *l2cap_data; void *priv; struct tasklet_struct cmd_task; struct tasklet_struct rx_task; struct tasklet_struct tx_task; struct sk_buff_head rx_q; struct sk_buff_head raw_q; struct sk_buff_head cmd_q; struct sk_buff *sent_cmd; struct semaphore req_lock; wait_queue_head_t req_wait_q; __u32 req_status; __u32 req_result; struct inquiry_cache inq_cache; struct conn_hash conn_hash; struct hci_dev_stats stat; int (*open)(struct hci_dev *hdev); int (*close)(struct hci_dev *hdev); int (*flush)(struct hci_dev *hdev); int (*send)(struct sk_buff *skb); }; static inline void hci_dev_hold(struct hci_dev *hdev) { atomic_inc(&hdev->refcnt); } static inline void hci_dev_put(struct hci_dev *hdev) { atomic_dec(&hdev->refcnt); } extern struct hci_dev *hci_dev_get(int index); extern int hci_register_dev(struct hci_dev *hdev); extern int hci_unregister_dev(struct hci_dev *hdev); extern int hci_dev_open(__u16 dev); extern int hci_dev_close(__u16 dev); extern int hci_dev_reset(__u16 dev); extern int hci_dev_reset_stat(__u16 dev); extern int hci_dev_info(unsigned long arg); extern int hci_dev_list(unsigned long arg); extern int hci_dev_setscan(unsigned long arg); extern int hci_dev_setauth(unsigned long arg); extern int hci_dev_setptype(unsigned long arg); extern int hci_conn_list(unsigned long arg); extern int hci_inquiry(unsigned long arg); extern __u32 hci_dev_setmode(struct hci_dev *hdev, __u32 mode); extern __u32 hci_dev_getmode(struct hci_dev *hdev); extern int hci_recv_frame(struct sk_buff *skb); /* ----- LMP capabilities ----- */ #define lmp_rswitch_capable(dev) (dev->features[0] & LMP_RSWITCH) /* ----- HCI tasks ----- */ static inline void hci_sched_cmd(struct hci_dev *hdev) { tasklet_schedule(&hdev->cmd_task); } static inline void hci_sched_rx(struct hci_dev *hdev) { tasklet_schedule(&hdev->rx_task); } static inline void hci_sched_tx(struct hci_dev *hdev) { tasklet_schedule(&hdev->tx_task); } /* ----- HCI protocols ----- */ struct hci_proto { char *name; __u32 id; __u32 flags; void *priv; int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr); int (*connect_cfm) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 status, struct hci_conn *conn); int (*disconn_ind) (struct hci_conn *conn, __u8 reason); int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb , __u16 flags); int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); }; extern int hci_register_proto(struct hci_proto *hproto); extern int hci_unregister_proto(struct hci_proto *hproto); extern int hci_register_notifier(struct notifier_block *nb); extern int hci_unregister_notifier(struct notifier_block *nb); extern int hci_connect(struct hci_dev * hdev, bdaddr_t * bdaddr); extern int hci_disconnect(struct hci_conn *conn, __u8 reason); extern int hci_send_cmd(struct hci_dev *hdev, __u16 ogf, __u16 ocf, __u32 plen, void * param); extern int hci_send_raw(struct sk_buff *skb); extern int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); extern int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); /* ----- HCI Sockets ----- */ extern void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); /* HCI info for socket */ #define hci_pi(sk) ((struct hci_pinfo *) &sk->protinfo) struct hci_pinfo { struct hci_dev *hdev; struct hci_filter filter; __u32 cmsg_mask; }; /* ----- HCI requests ----- */ #define HCI_REQ_DONE 0 #define HCI_REQ_PEND 1 #define HCI_REQ_CANCELED 2 #endif /* __HCI_CORE_H */