hci_core.h
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- /*
- BlueZ - Bluetooth protocol stack for Linux
- Copyright (C) 2000-2001 Qualcomm Incorporated
- Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
- 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 1.11 2001/08/05 06:02:15 maxk Exp $
- */
- #ifndef __HCI_CORE_H
- #define __HCI_CORE_H
- #include <net/bluetooth/hci.h>
- /* 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 */