[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / net / bluetooth / hci_core.h

/* 
   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.
*/

#ifndef __HCI_CORE_H
#define __HCI_CORE_H

#include <net/bluetooth/hci.h>

/* HCI upper protocols */
#define HCI_PROTO_L2CAP	0
#define HCI_PROTO_SCO	1

/* HCI Core structures */
struct inquiry_data {
	bdaddr_t	bdaddr;
	__u8		pscan_rep_mode;
	__u8		pscan_period_mode;
	__u8		pscan_mode;
	__u8		dev_class[3];
	__le16		clock_offset;
	__s8		rssi;
	__u8		ssp_mode;
};

struct inquiry_entry {
	struct inquiry_entry 	*next;
	__u32			timestamp;
	struct inquiry_data	data;
};

struct inquiry_cache {
	spinlock_t 		lock;
	__u32			timestamp;
	struct inquiry_entry 	*list;
};

struct hci_conn_hash {
	struct list_head list;
	spinlock_t       lock;
	unsigned int     acl_num;
	unsigned int     sco_num;
};

struct hci_dev {
	struct list_head list;
	spinlock_t	lock;
	atomic_t	refcnt;

	char		name[8];
	unsigned long	flags;
	__u16		id;
	__u8		type;
	bdaddr_t	bdaddr;
	__u8		dev_name[248];
	__u8		dev_class[3];
	__u8		features[8];
	__u8		commands[64];
	__u8		ssp_mode;
	__u8		hci_ver;
	__u16		hci_rev;
	__u16		manufacturer;
	__u16		voice_setting;

	__u16		pkt_type;
	__u16		esco_type;
	__u16		link_policy;
	__u16		link_mode;

	__u32		idle_timeout;
	__u16		sniff_min_interval;
	__u16		sniff_max_interval;

	unsigned long	quirks;

	atomic_t	cmd_cnt;
	unsigned int	acl_cnt;
	unsigned int	sco_cnt;

	unsigned int	acl_mtu;
	unsigned int	sco_mtu;
	unsigned int	acl_pkts;
	unsigned int	sco_pkts;

	unsigned long	cmd_last_tx;
	unsigned long	acl_last_tx;
	unsigned long	sco_last_tx;

	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 sk_buff		*reassembly[3];

	struct semaphore	req_lock;
	wait_queue_head_t	req_wait_q;
	__u32			req_status;
	__u32			req_result;

	struct inquiry_cache	inq_cache;
	struct hci_conn_hash	conn_hash;

	struct hci_dev_stats	stat;

	struct sk_buff_head	driver_init;

	void			*driver_data;
	void			*core_data;

	atomic_t 		promisc;

	struct device		*parent;
	struct device		dev;

	struct module 		*owner;

	int (*open)(struct hci_dev *hdev);
	int (*close)(struct hci_dev *hdev);
	int (*flush)(struct hci_dev *hdev);
	int (*send)(struct sk_buff *skb);
	void (*destruct)(struct hci_dev *hdev);
	void (*notify)(struct hci_dev *hdev, unsigned int evt);
	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
};

struct hci_conn {
	struct list_head list;

	atomic_t	 refcnt;
	spinlock_t	 lock;

	bdaddr_t	 dst;
	__u16		 handle;
	__u16		 state;
	__u8             mode;
	__u8		 type;
	__u8		 out;
	__u8		 attempt;
	__u8		 dev_class[3];
	__u8             features[8];
	__u8             ssp_mode;
	__u16            interval;
	__u16            pkt_type;
	__u16            link_policy;
	__u32		 link_mode;
	__u8             auth_type;
	__u8             sec_level;
	__u8             power_save;
	unsigned long	 pend;

	unsigned int	 sent;

	struct sk_buff_head data_q;

	struct timer_list disc_timer;
	struct timer_list idle_timer;

	struct work_struct work;

	struct device	dev;

	struct hci_dev	*hdev;
	void		*l2cap_data;
	void		*sco_data;
	void		*priv;

	struct hci_conn	*link;
};

extern struct hci_proto *hci_proto[];
extern struct list_head hci_dev_list;
extern struct list_head hci_cb_list;
extern rwlock_t hci_dev_list_lock;
extern rwlock_t hci_cb_list_lock;

/* ----- Inquiry cache ----- */
#define INQUIRY_CACHE_AGE_MAX   (HZ*30)   // 30 seconds
#define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   // 60 seconds

#define inquiry_cache_lock(c)		spin_lock(&c->lock)
#define inquiry_cache_unlock(c)		spin_unlock(&c->lock)
#define inquiry_cache_lock_bh(c)	spin_lock_bh(&c->lock)
#define inquiry_cache_unlock_bh(c)	spin_unlock_bh(&c->lock)

static inline void inquiry_cache_init(struct hci_dev *hdev)
{
	struct inquiry_cache *c = &hdev->inq_cache;
	spin_lock_init(&c->lock);
	c->list = NULL;
}

static inline int inquiry_cache_empty(struct hci_dev *hdev)
{
	struct inquiry_cache *c = &hdev->inq_cache;
	return (c->list == NULL);
}

static inline long inquiry_cache_age(struct hci_dev *hdev)
{
	struct inquiry_cache *c = &hdev->inq_cache;
	return jiffies - c->timestamp;
}

static inline long inquiry_entry_age(struct inquiry_entry *e)
{
	return jiffies - e->timestamp;
}

struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);

/* ----- HCI Connections ----- */
enum {
	HCI_CONN_AUTH_PEND,
	HCI_CONN_ENCRYPT_PEND,
	HCI_CONN_RSWITCH_PEND,
	HCI_CONN_MODE_CHANGE_PEND,
};

static inline void hci_conn_hash_init(struct hci_dev *hdev)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	INIT_LIST_HEAD(&h->list);
	spin_lock_init(&h->lock);
	h->acl_num = 0;
	h->sco_num = 0;
}

static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	list_add(&c->list, &h->list);
	if (c->type == ACL_LINK)
		h->acl_num++;
	else
		h->sco_num++;
}

static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	list_del(&c->list);
	if (c->type == ACL_LINK)
		h->acl_num--;
	else
		h->sco_num--;
}

static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
					__u16 handle)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct list_head *p;
	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 *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
					__u8 type, bdaddr_t *ba)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct list_head *p;
	struct hci_conn  *c;

	list_for_each(p, &h->list) {
		c = list_entry(p, struct hci_conn, list);
		if (c->type == type && !bacmp(&c->dst, ba))
			return c;
	}
	return NULL;
}

static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
					__u8 type, __u16 state)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct list_head *p;
	struct hci_conn  *c;

	list_for_each(p, &h->list) {
		c = list_entry(p, struct hci_conn, list);
		if (c->type == type && c->state == state)
			return c;
	}
	return NULL;
}

void hci_acl_connect(struct hci_conn *conn);
void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
void hci_add_sco(struct hci_conn *conn, __u16 handle);
void hci_setup_sync(struct hci_conn *conn, __u16 handle);

struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
int hci_conn_del(struct hci_conn *conn);
void hci_conn_hash_flush(struct hci_dev *hdev);
void hci_conn_check_pending(struct hci_dev *hdev);

struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
int hci_conn_check_link_mode(struct hci_conn *conn);
int hci_conn_security(struct hci_conn *conn, __u8 sec_level);
int hci_conn_change_link_key(struct hci_conn *conn);
int hci_conn_switch_role(struct hci_conn *conn, __u8 role);

void hci_conn_enter_active_mode(struct hci_conn *conn);
void hci_conn_enter_sniff_mode(struct hci_conn *conn);

static inline void hci_conn_hold(struct hci_conn *conn)
{
	atomic_inc(&conn->refcnt);
	del_timer(&conn->disc_timer);
}

static inline void hci_conn_put(struct hci_conn *conn)
{
	if (atomic_dec_and_test(&conn->refcnt)) {
		unsigned long timeo;
		if (conn->type == ACL_LINK) {
			del_timer(&conn->idle_timer);
			if (conn->state == BT_CONNECTED) {
				timeo = msecs_to_jiffies(HCI_DISCONN_TIMEOUT);
				if (!conn->out)
					timeo *= 5;
			} else
				timeo = msecs_to_jiffies(10);
		} else
			timeo = msecs_to_jiffies(10);
		mod_timer(&conn->disc_timer, jiffies + timeo);
	}
}

/* ----- 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 Devices ----- */
static inline void __hci_dev_put(struct hci_dev *d)
{
	if (atomic_dec_and_test(&d->refcnt))
		d->destruct(d);
}

static inline void hci_dev_put(struct hci_dev *d)
{ 
	__hci_dev_put(d);
	module_put(d->owner);
}

static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
{
	atomic_inc(&d->refcnt);
	return d;
}

static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
{
	if (try_module_get(d->owner))
		return __hci_dev_hold(d);
	return NULL;
}

#define hci_dev_lock(d)		spin_lock(&d->lock)
#define hci_dev_unlock(d)	spin_unlock(&d->lock)
#define hci_dev_lock_bh(d)	spin_lock_bh(&d->lock)
#define hci_dev_unlock_bh(d)	spin_unlock_bh(&d->lock)

struct hci_dev *hci_dev_get(int index);
struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);

struct hci_dev *hci_alloc_dev(void);
void hci_free_dev(struct hci_dev *hdev);
int hci_register_dev(struct hci_dev *hdev);
int hci_unregister_dev(struct hci_dev *hdev);
int hci_suspend_dev(struct hci_dev *hdev);
int hci_resume_dev(struct hci_dev *hdev);
int hci_dev_open(__u16 dev);
int hci_dev_close(__u16 dev);
int hci_dev_reset(__u16 dev);
int hci_dev_reset_stat(__u16 dev);
int hci_dev_cmd(unsigned int cmd, void __user *arg);
int hci_get_dev_list(void __user *arg);
int hci_get_dev_info(void __user *arg);
int hci_get_conn_list(void __user *arg);
int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
int hci_inquiry(void __user *arg);

void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);

/* Receive frame from HCI drivers */
static inline int hci_recv_frame(struct sk_buff *skb)
{
	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
	if (!hdev || (!test_bit(HCI_UP, &hdev->flags) 
			&& !test_bit(HCI_INIT, &hdev->flags))) {
		kfree_skb(skb);
		return -ENXIO;
	}

	/* Incomming skb */
	bt_cb(skb)->incoming = 1;

	/* Time stamp */
	__net_timestamp(skb);

	/* Queue frame for rx task */
	skb_queue_tail(&hdev->rx_q, skb);
	hci_sched_rx(hdev);
	return 0;
}

int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);

int hci_register_sysfs(struct hci_dev *hdev);
void hci_unregister_sysfs(struct hci_dev *hdev);
void hci_conn_add_sysfs(struct hci_conn *conn);
void hci_conn_del_sysfs(struct hci_conn *conn);

#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))

/* ----- LMP capabilities ----- */
#define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
#define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
#define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
#define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
#define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)

/* ----- HCI protocols ----- */
struct hci_proto {
	char		*name;
	unsigned int	id;
	unsigned long	flags;

	void		*priv;

	int (*connect_ind)	(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
	int (*connect_cfm)	(struct hci_conn *conn, __u8 status);
	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);
	int (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
};

static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
{
	register struct hci_proto *hp;
	int mask = 0;

	hp = hci_proto[HCI_PROTO_L2CAP];
	if (hp && hp->connect_ind)
		mask |= hp->connect_ind(hdev, bdaddr, type);

	hp = hci_proto[HCI_PROTO_SCO];
	if (hp && hp->connect_ind)
		mask |= hp->connect_ind(hdev, bdaddr, type);

	return mask;
}

static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
{
	register struct hci_proto *hp;

	hp = hci_proto[HCI_PROTO_L2CAP];
	if (hp && hp->connect_cfm)
		hp->connect_cfm(conn, status);

	hp = hci_proto[HCI_PROTO_SCO];
	if (hp && hp->connect_cfm)
		hp->connect_cfm(conn, status);
}

static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
{
	register struct hci_proto *hp;

	hp = hci_proto[HCI_PROTO_L2CAP];
	if (hp && hp->disconn_ind)
		hp->disconn_ind(conn, reason);

	hp = hci_proto[HCI_PROTO_SCO];
	if (hp && hp->disconn_ind)
		hp->disconn_ind(conn, reason);
}

static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
{
	register struct hci_proto *hp;
	__u8 encrypt;

	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
		return;

	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;

	hp = hci_proto[HCI_PROTO_L2CAP];
	if (hp && hp->security_cfm)
		hp->security_cfm(conn, status, encrypt);

	hp = hci_proto[HCI_PROTO_SCO];
	if (hp && hp->security_cfm)
		hp->security_cfm(conn, status, encrypt);
}

static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
{
	register struct hci_proto *hp;

	hp = hci_proto[HCI_PROTO_L2CAP];
	if (hp && hp->security_cfm)
		hp->security_cfm(conn, status, encrypt);

	hp = hci_proto[HCI_PROTO_SCO];
	if (hp && hp->security_cfm)
		hp->security_cfm(conn, status, encrypt);
}

int hci_register_proto(struct hci_proto *hproto);
int hci_unregister_proto(struct hci_proto *hproto);

/* ----- HCI callbacks ----- */
struct hci_cb {
	struct list_head list;

	char *name;

	void (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
	void (*key_change_cfm)	(struct hci_conn *conn, __u8 status);
	void (*role_switch_cfm)	(struct hci_conn *conn, __u8 status, __u8 role);
};

static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
{
	struct list_head *p;
	__u8 encrypt;

	hci_proto_auth_cfm(conn, status);

	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
		return;

	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;

	read_lock_bh(&hci_cb_list_lock);
	list_for_each(p, &hci_cb_list) {
		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
		if (cb->security_cfm)
			cb->security_cfm(conn, status, encrypt);
	}
	read_unlock_bh(&hci_cb_list_lock);
}

static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
{
	struct list_head *p;

	hci_proto_encrypt_cfm(conn, status, encrypt);

	read_lock_bh(&hci_cb_list_lock);
	list_for_each(p, &hci_cb_list) {
		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
		if (cb->security_cfm)
			cb->security_cfm(conn, status, encrypt);
	}
	read_unlock_bh(&hci_cb_list_lock);
}

static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
{
	struct list_head *p;

	read_lock_bh(&hci_cb_list_lock);
	list_for_each(p, &hci_cb_list) {
		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
		if (cb->key_change_cfm)
			cb->key_change_cfm(conn, status);
	}
	read_unlock_bh(&hci_cb_list_lock);
}

static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
{
	struct list_head *p;

	read_lock_bh(&hci_cb_list_lock);
	list_for_each(p, &hci_cb_list) {
		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
		if (cb->role_switch_cfm)
			cb->role_switch_cfm(conn, status, role);
	}
	read_unlock_bh(&hci_cb_list_lock);
}

int hci_register_cb(struct hci_cb *hcb);
int hci_unregister_cb(struct hci_cb *hcb);

int hci_register_notifier(struct notifier_block *nb);
int hci_unregister_notifier(struct notifier_block *nb);

int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);

void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);

void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);

/* ----- HCI Sockets ----- */
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)

struct hci_pinfo {
	struct bt_sock    bt;
	struct hci_dev    *hdev;
	struct hci_filter filter;
	__u32             cmsg_mask;
};

/* HCI security filter */
#define HCI_SFLT_MAX_OGF  5

struct hci_sec_filter {
	__u32 type_mask;
	__u32 event_mask[2];
	__u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
};

/* ----- HCI requests ----- */
#define HCI_REQ_DONE	  0
#define HCI_REQ_PEND	  1
#define HCI_REQ_CANCELED  2

#define hci_req_lock(d)		down(&d->req_lock)
#define hci_req_unlock(d)	up(&d->req_lock)

void hci_req_complete(struct hci_dev *hdev, int result);

#endif /* __HCI_CORE_H */
Commit	Line	Data
1da177e4 LT	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 __HCI_CORE_H
	26	#define __HCI_CORE_H
	27
1da177e4 LT	28	#include <net/bluetooth/hci.h>
	29
	30	/* HCI upper protocols */
	31	#define HCI_PROTO_L2CAP 0
	32	#define HCI_PROTO_SCO 1
	33
1da177e4	34	/* HCI Core structures */
1da177e4 LT	35	struct inquiry_data {
	36	bdaddr_t bdaddr;
	37	__u8 pscan_rep_mode;
	38	__u8 pscan_period_mode;
	39	__u8 pscan_mode;
	40	__u8 dev_class[3];
1ebb9252	41	__le16 clock_offset;
1da177e4	42	__s8 rssi;
41a96212	43	__u8 ssp_mode;
1da177e4 LT	44	};
	45
	46	struct inquiry_entry {
	47	struct inquiry_entry *next;
	48	__u32 timestamp;
	49	struct inquiry_data data;
	50	};
	51
	52	struct inquiry_cache {
	53	spinlock_t lock;
	54	__u32 timestamp;
	55	struct inquiry_entry *list;
	56	};
	57
	58	struct hci_conn_hash {
	59	struct list_head list;
	60	spinlock_t lock;
	61	unsigned int acl_num;
	62	unsigned int sco_num;
	63	};
	64
	65	struct hci_dev {
	66	struct list_head list;
	67	spinlock_t lock;
	68	atomic_t refcnt;
	69
	70	char name[8];
	71	unsigned long flags;
	72	__u16 id;
	73	__u8 type;
	74	bdaddr_t bdaddr;
a9de9248 MH	75	__u8 dev_name[248];
a9de9248 MH	76	__u8 dev_class[3];
1da177e4	77	__u8 features[8];
a9de9248	78	__u8 commands[64];
333140b5	79	__u8 ssp_mode;
1143e5a6 MH	80	__u8 hci_ver;
	81	__u16 hci_rev;
	82	__u16 manufacturer;
1da177e4 LT	83	__u16 voice_setting;
	84
	85	__u16 pkt_type;
5b7f9909	86	__u16 esco_type;
1da177e4 LT	87	__u16 link_policy;
	88	__u16 link_mode;
	89
04837f64 MH	90	__u32 idle_timeout;
	91	__u16 sniff_min_interval;
	92	__u16 sniff_max_interval;
	93
1da177e4 LT	94	unsigned long quirks;
	95
	96	atomic_t cmd_cnt;
	97	unsigned int acl_cnt;
	98	unsigned int sco_cnt;
	99
	100	unsigned int acl_mtu;
	101	unsigned int sco_mtu;
	102	unsigned int acl_pkts;
	103	unsigned int sco_pkts;
	104
	105	unsigned long cmd_last_tx;
	106	unsigned long acl_last_tx;
	107	unsigned long sco_last_tx;
	108
	109	struct tasklet_struct cmd_task;
	110	struct tasklet_struct rx_task;
	111	struct tasklet_struct tx_task;
	112
	113	struct sk_buff_head rx_q;
	114	struct sk_buff_head raw_q;
	115	struct sk_buff_head cmd_q;
	116
	117	struct sk_buff *sent_cmd;
ef222013	118	struct sk_buff *reassembly[3];
1da177e4 LT	119
	120	struct semaphore req_lock;
	121	wait_queue_head_t req_wait_q;
	122	__u32 req_status;
	123	__u32 req_result;
	124
	125	struct inquiry_cache inq_cache;
	126	struct hci_conn_hash conn_hash;
	127
	128	struct hci_dev_stats stat;
	129
	130	struct sk_buff_head driver_init;
	131
	132	void *driver_data;
	133	void *core_data;
	134
	135	atomic_t promisc;
	136
a91f2e39 MH	137	struct device *parent;
a91f2e39 MH	138	struct device dev;
1da177e4 LT	139
	140	struct module *owner;
	141
	142	int (open)(struct hci_dev hdev);
	143	int (close)(struct hci_dev hdev);
	144	int (flush)(struct hci_dev hdev);
	145	int (send)(struct sk_buff skb);
	146	void (destruct)(struct hci_dev hdev);
	147	void (notify)(struct hci_dev hdev, unsigned int evt);
	148	int (ioctl)(struct hci_dev hdev, unsigned int cmd, unsigned long arg);
	149	};
	150
	151	struct hci_conn {
	152	struct list_head list;
	153
	154	atomic_t refcnt;
	155	spinlock_t lock;
	156
	157	bdaddr_t dst;
	158	__u16 handle;
	159	__u16 state;
04837f64	160	__u8 mode;
1da177e4 LT	161	__u8 type;
1da177e4 LT	162	__u8 out;
4c67bc74	163	__u8 attempt;
1da177e4	164	__u8 dev_class[3];
04837f64	165	__u8 features[8];
41a96212	166	__u8 ssp_mode;
04837f64	167	__u16 interval;
a8746417	168	__u16 pkt_type;
04837f64	169	__u16 link_policy;
1da177e4	170	__u32 link_mode;
40be492f	171	__u8 auth_type;
8c1b2355	172	__u8 sec_level;
04837f64	173	__u8 power_save;
1da177e4	174	unsigned long pend;
04837f64	175
1da177e4	176	unsigned int sent;
04837f64	177
1da177e4 LT	178	struct sk_buff_head data_q;
1da177e4 LT	179
04837f64 MH	180	struct timer_list disc_timer;
	181	struct timer_list idle_timer;
	182
b219e3ac MH	183	struct work_struct work;
	184
	185	struct device dev;
	186
1da177e4 LT	187	struct hci_dev *hdev;
	188	void *l2cap_data;
	189	void *sco_data;
	190	void *priv;
	191
	192	struct hci_conn *link;
	193	};
	194
	195	extern struct hci_proto *hci_proto[];
	196	extern struct list_head hci_dev_list;
	197	extern struct list_head hci_cb_list;
	198	extern rwlock_t hci_dev_list_lock;
	199	extern rwlock_t hci_cb_list_lock;
	200
	201	/* ----- Inquiry cache ----- */
	202	#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds
	203	#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds
	204
	205	#define inquiry_cache_lock(c) spin_lock(&c->lock)
	206	#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
	207	#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
	208	#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
	209
	210	static inline void inquiry_cache_init(struct hci_dev *hdev)
	211	{
	212	struct inquiry_cache *c = &hdev->inq_cache;
	213	spin_lock_init(&c->lock);
	214	c->list = NULL;
	215	}
	216
	217	static inline int inquiry_cache_empty(struct hci_dev *hdev)
	218	{
	219	struct inquiry_cache *c = &hdev->inq_cache;
	220	return (c->list == NULL);
	221	}
	222
	223	static inline long inquiry_cache_age(struct hci_dev *hdev)
	224	{
	225	struct inquiry_cache *c = &hdev->inq_cache;
	226	return jiffies - c->timestamp;
	227	}
	228
	229	static inline long inquiry_entry_age(struct inquiry_entry *e)
	230	{
	231	return jiffies - e->timestamp;
	232	}
	233
	234	struct inquiry_entry hci_inquiry_cache_lookup(struct hci_dev hdev, bdaddr_t *bdaddr);
	235	void hci_inquiry_cache_update(struct hci_dev hdev, struct inquiry_data data);
	236
	237	/* ----- HCI Connections ----- */
	238	enum {
	239	HCI_CONN_AUTH_PEND,
	240	HCI_CONN_ENCRYPT_PEND,
04837f64 MH	241	HCI_CONN_RSWITCH_PEND,
04837f64 MH	242	HCI_CONN_MODE_CHANGE_PEND,
1da177e4 LT	243	};
	244
	245	static inline void hci_conn_hash_init(struct hci_dev *hdev)
	246	{
	247	struct hci_conn_hash *h = &hdev->conn_hash;
	248	INIT_LIST_HEAD(&h->list);
	249	spin_lock_init(&h->lock);
	250	h->acl_num = 0;
	251	h->sco_num = 0;
	252	}
	253
	254	static inline void hci_conn_hash_add(struct hci_dev hdev, struct hci_conn c)
	255	{
	256	struct hci_conn_hash *h = &hdev->conn_hash;
	257	list_add(&c->list, &h->list);
	258	if (c->type == ACL_LINK)
	259	h->acl_num++;
	260	else
	261	h->sco_num++;
	262	}
	263
	264	static inline void hci_conn_hash_del(struct hci_dev hdev, struct hci_conn c)
	265	{
	266	struct hci_conn_hash *h = &hdev->conn_hash;
	267	list_del(&c->list);
	268	if (c->type == ACL_LINK)
	269	h->acl_num--;
	270	else
	271	h->sco_num--;
	272	}
	273
	274	static inline struct hci_conn hci_conn_hash_lookup_handle(struct hci_dev hdev,
	275	__u16 handle)
	276	{
	277	struct hci_conn_hash *h = &hdev->conn_hash;
	278	struct list_head *p;
	279	struct hci_conn *c;
	280
	281	list_for_each(p, &h->list) {
	282	c = list_entry(p, struct hci_conn, list);
	283	if (c->handle == handle)
	284	return c;
	285	}
	286	return NULL;
	287	}
	288
	289	static inline struct hci_conn hci_conn_hash_lookup_ba(struct hci_dev hdev,
	290	__u8 type, bdaddr_t *ba)
	291	{
	292	struct hci_conn_hash *h = &hdev->conn_hash;
	293	struct list_head *p;
	294	struct hci_conn *c;
	295
	296	list_for_each(p, &h->list) {
	297	c = list_entry(p, struct hci_conn, list);
	298	if (c->type == type && !bacmp(&c->dst, ba))
	299	return c;
	300	}
	301	return NULL;
	302	}
	303
4c67bc74 MH	304	static inline struct hci_conn hci_conn_hash_lookup_state(struct hci_dev hdev,
	305	__u8 type, __u16 state)
	306	{
	307	struct hci_conn_hash *h = &hdev->conn_hash;
	308	struct list_head *p;
	309	struct hci_conn *c;
	310
	311	list_for_each(p, &h->list) {
	312	c = list_entry(p, struct hci_conn, list);
	313	if (c->type == type && c->state == state)
	314	return c;
	315	}
	316	return NULL;
	317	}
	318
	319	void hci_acl_connect(struct hci_conn *conn);
1da177e4 LT	320	void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
1da177e4 LT	321	void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82	322	void hci_setup_sync(struct hci_conn *conn, __u16 handle);
1da177e4 LT	323
1da177e4 LT	324	struct hci_conn hci_conn_add(struct hci_dev hdev, int type, bdaddr_t *dst);
a9de9248 MH	325	int hci_conn_del(struct hci_conn *conn);
	326	void hci_conn_hash_flush(struct hci_dev *hdev);
	327	void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4	328
8c1b2355	329	struct hci_conn hci_connect(struct hci_dev hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
e7c29cb1	330	int hci_conn_check_link_mode(struct hci_conn *conn);
8c1b2355	331	int hci_conn_security(struct hci_conn *conn, __u8 sec_level);
1da177e4	332	int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355	333	int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4	334
04837f64 MH	335	void hci_conn_enter_active_mode(struct hci_conn *conn);
04837f64 MH	336	void hci_conn_enter_sniff_mode(struct hci_conn *conn);
1da177e4 LT	337
	338	static inline void hci_conn_hold(struct hci_conn *conn)
	339	{
	340	atomic_inc(&conn->refcnt);
04837f64	341	del_timer(&conn->disc_timer);
1da177e4 LT	342	}
	343
	344	static inline void hci_conn_put(struct hci_conn *conn)
	345	{
	346	if (atomic_dec_and_test(&conn->refcnt)) {
04837f64	347	unsigned long timeo;
1da177e4	348	if (conn->type == ACL_LINK) {
04837f64	349	del_timer(&conn->idle_timer);
6ac59344 MH	350	if (conn->state == BT_CONNECTED) {
	351	timeo = msecs_to_jiffies(HCI_DISCONN_TIMEOUT);
	352	if (!conn->out)
769be974	353	timeo *= 5;
6ac59344 MH	354	} else
6ac59344 MH	355	timeo = msecs_to_jiffies(10);
1da177e4	356	} else
04837f64 MH	357	timeo = msecs_to_jiffies(10);
04837f64 MH	358	mod_timer(&conn->disc_timer, jiffies + timeo);
1da177e4 LT	359	}
	360	}
	361
	362	/* ----- HCI tasks ----- */
	363	static inline void hci_sched_cmd(struct hci_dev *hdev)
	364	{
	365	tasklet_schedule(&hdev->cmd_task);
	366	}
	367
	368	static inline void hci_sched_rx(struct hci_dev *hdev)
	369	{
	370	tasklet_schedule(&hdev->rx_task);
	371	}
	372
	373	static inline void hci_sched_tx(struct hci_dev *hdev)
	374	{
	375	tasklet_schedule(&hdev->tx_task);
	376	}
	377
	378	/* ----- HCI Devices ----- */
	379	static inline void __hci_dev_put(struct hci_dev *d)
	380	{
	381	if (atomic_dec_and_test(&d->refcnt))
	382	d->destruct(d);
	383	}
	384
	385	static inline void hci_dev_put(struct hci_dev *d)
	386	{
	387	__hci_dev_put(d);
	388	module_put(d->owner);
	389	}
	390
	391	static inline struct hci_dev __hci_dev_hold(struct hci_dev d)
	392	{
	393	atomic_inc(&d->refcnt);
	394	return d;
	395	}
	396
	397	static inline struct hci_dev hci_dev_hold(struct hci_dev d)
	398	{
	399	if (try_module_get(d->owner))
	400	return __hci_dev_hold(d);
	401	return NULL;
	402	}
	403
	404	#define hci_dev_lock(d) spin_lock(&d->lock)
	405	#define hci_dev_unlock(d) spin_unlock(&d->lock)
	406	#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
	407	#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
	408
	409	struct hci_dev *hci_dev_get(int index);
	410	struct hci_dev hci_get_route(bdaddr_t src, bdaddr_t *dst);
	411
	412	struct hci_dev *hci_alloc_dev(void);
	413	void hci_free_dev(struct hci_dev *hdev);
	414	int hci_register_dev(struct hci_dev *hdev);
	415	int hci_unregister_dev(struct hci_dev *hdev);
	416	int hci_suspend_dev(struct hci_dev *hdev);
	417	int hci_resume_dev(struct hci_dev *hdev);
	418	int hci_dev_open(__u16 dev);
	419	int hci_dev_close(__u16 dev);
	420	int hci_dev_reset(__u16 dev);
	421	int hci_dev_reset_stat(__u16 dev);
	422	int hci_dev_cmd(unsigned int cmd, void __user *arg);
423	int hci_get_dev_list(void __user *arg);
424	int hci_get_dev_info(void __user *arg);
425	int hci_get_conn_list(void __user *arg);
426	int hci_get_conn_info(struct hci_dev hdev, void __user arg);
40be492f	427	int hci_get_auth_info(struct hci_dev hdev, void __user arg);
1da177e4 LT	428	int hci_inquiry(void __user *arg);
	429
	430	void hci_event_packet(struct hci_dev hdev, struct sk_buff skb);
	431
	432	/* Receive frame from HCI drivers */
	433	static inline int hci_recv_frame(struct sk_buff *skb)
	434	{
	435	struct hci_dev hdev = (struct hci_dev ) skb->dev;
	436	if (!hdev \|\| (!test_bit(HCI_UP, &hdev->flags)
	437	&& !test_bit(HCI_INIT, &hdev->flags))) {
	438	kfree_skb(skb);
	439	return -ENXIO;
	440	}
	441
	442	/* Incomming skb */
	443	bt_cb(skb)->incoming = 1;
	444
	445	/* Time stamp */
a61bbcf2	446	__net_timestamp(skb);
1da177e4 LT	447
	448	/* Queue frame for rx task */
	449	skb_queue_tail(&hdev->rx_q, skb);
	450	hci_sched_rx(hdev);
	451	return 0;
	452	}
	453
ef222013 MH	454	int hci_recv_fragment(struct hci_dev hdev, int type, void data, int count);
ef222013 MH	455
1da177e4 LT	456	int hci_register_sysfs(struct hci_dev *hdev);
1da177e4 LT	457	void hci_unregister_sysfs(struct hci_dev *hdev);
b219e3ac MH	458	void hci_conn_add_sysfs(struct hci_conn *conn);
b219e3ac MH	459	void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4	460
a91f2e39	461	#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4 LT	462
1da177e4 LT	463	/* ----- LMP capabilities ----- */
04837f64 MH	464	#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
	465	#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
	466	#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
	467	#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909	468	#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974	469	#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
1da177e4 LT	470
	471	/* ----- HCI protocols ----- */
	472	struct hci_proto {
8c1b2355	473	char *name;
1da177e4 LT	474	unsigned int id;
	475	unsigned long flags;
	476
	477	void *priv;
	478
8c1b2355	479	int (connect_ind) (struct hci_dev hdev, bdaddr_t *bdaddr, __u8 type);
1da177e4 LT	480	int (connect_cfm) (struct hci_conn conn, __u8 status);
	481	int (disconn_ind) (struct hci_conn conn, __u8 reason);
	482	int (recv_acldata) (struct hci_conn conn, struct sk_buff *skb, __u16 flags);
	483	int (recv_scodata) (struct hci_conn conn, struct sk_buff *skb);
8c1b2355	484	int (security_cfm) (struct hci_conn conn, __u8 status, __u8 encrypt);
1da177e4 LT	485	};
	486
	487	static inline int hci_proto_connect_ind(struct hci_dev hdev, bdaddr_t bdaddr, __u8 type)
	488	{
	489	register struct hci_proto *hp;
	490	int mask = 0;
8c1b2355	491
1da177e4 LT	492	hp = hci_proto[HCI_PROTO_L2CAP];
	493	if (hp && hp->connect_ind)
	494	mask \|= hp->connect_ind(hdev, bdaddr, type);
	495
	496	hp = hci_proto[HCI_PROTO_SCO];
	497	if (hp && hp->connect_ind)
	498	mask \|= hp->connect_ind(hdev, bdaddr, type);
	499
	500	return mask;
	501	}
	502
	503	static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
	504	{
	505	register struct hci_proto *hp;
	506
	507	hp = hci_proto[HCI_PROTO_L2CAP];
	508	if (hp && hp->connect_cfm)
	509	hp->connect_cfm(conn, status);
	510
	511	hp = hci_proto[HCI_PROTO_SCO];
	512	if (hp && hp->connect_cfm)
	513	hp->connect_cfm(conn, status);
	514	}
	515
	516	static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
	517	{
	518	register struct hci_proto *hp;
	519
	520	hp = hci_proto[HCI_PROTO_L2CAP];
	521	if (hp && hp->disconn_ind)
	522	hp->disconn_ind(conn, reason);
	523
	524	hp = hci_proto[HCI_PROTO_SCO];
	525	if (hp && hp->disconn_ind)
	526	hp->disconn_ind(conn, reason);
	527	}
	528
	529	static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
	530	{
	531	register struct hci_proto *hp;
8c1b2355 MH	532	__u8 encrypt;
	533
	534	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	535	return;
	536
	537	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
1da177e4 LT	538
1da177e4 LT	539	hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355 MH	540	if (hp && hp->security_cfm)
8c1b2355 MH	541	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	542
1da177e4 LT	543	hp = hci_proto[HCI_PROTO_SCO];
8c1b2355 MH	544	if (hp && hp->security_cfm)
8c1b2355 MH	545	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	546	}
1da177e4 LT	547
9719f8af	548	static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
1da177e4 LT	549	{
	550	register struct hci_proto *hp;
	551
	552	hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355 MH	553	if (hp && hp->security_cfm)
8c1b2355 MH	554	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	555
1da177e4 LT	556	hp = hci_proto[HCI_PROTO_SCO];
8c1b2355 MH	557	if (hp && hp->security_cfm)
8c1b2355 MH	558	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	559	}
	560
	561	int hci_register_proto(struct hci_proto *hproto);
	562	int hci_unregister_proto(struct hci_proto *hproto);
	563
	564	/* ----- HCI callbacks ----- */
	565	struct hci_cb {
	566	struct list_head list;
	567
	568	char *name;
	569
8c1b2355	570	void (security_cfm) (struct hci_conn conn, __u8 status, __u8 encrypt);
1da177e4 LT	571	void (key_change_cfm) (struct hci_conn conn, __u8 status);
	572	void (role_switch_cfm) (struct hci_conn conn, __u8 status, __u8 role);
	573	};
	574
	575	static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
	576	{
	577	struct list_head *p;
8c1b2355	578	__u8 encrypt;
1da177e4 LT	579
	580	hci_proto_auth_cfm(conn, status);
	581
8c1b2355 MH	582	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	583	return;
	584
	585	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
	586
1da177e4 LT	587	read_lock_bh(&hci_cb_list_lock);
	588	list_for_each(p, &hci_cb_list) {
	589	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355 MH	590	if (cb->security_cfm)
8c1b2355 MH	591	cb->security_cfm(conn, status, encrypt);
1da177e4 LT	592	}
	593	read_unlock_bh(&hci_cb_list_lock);
	594	}
	595
	596	static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
	597	{
	598	struct list_head *p;
	599
9719f8af	600	hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4 LT	601
	602	read_lock_bh(&hci_cb_list_lock);
	603	list_for_each(p, &hci_cb_list) {
	604	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355 MH	605	if (cb->security_cfm)
8c1b2355 MH	606	cb->security_cfm(conn, status, encrypt);
1da177e4 LT	607	}
	608	read_unlock_bh(&hci_cb_list_lock);
	609	}
	610
	611	static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
	612	{
	613	struct list_head *p;
	614
	615	read_lock_bh(&hci_cb_list_lock);
	616	list_for_each(p, &hci_cb_list) {
	617	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
	618	if (cb->key_change_cfm)
	619	cb->key_change_cfm(conn, status);
	620	}
	621	read_unlock_bh(&hci_cb_list_lock);
	622	}
	623
	624	static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
	625	{
	626	struct list_head *p;
	627
	628	read_lock_bh(&hci_cb_list_lock);
	629	list_for_each(p, &hci_cb_list) {
	630	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
	631	if (cb->role_switch_cfm)
	632	cb->role_switch_cfm(conn, status, role);
	633	}
	634	read_unlock_bh(&hci_cb_list_lock);
	635	}
	636
	637	int hci_register_cb(struct hci_cb *hcb);
	638	int hci_unregister_cb(struct hci_cb *hcb);
	639
	640	int hci_register_notifier(struct notifier_block *nb);
	641	int hci_unregister_notifier(struct notifier_block *nb);
	642
a9de9248	643	int hci_send_cmd(struct hci_dev hdev, __u16 opcode, __u32 plen, void param);
1da177e4 LT	644	int hci_send_acl(struct hci_conn conn, struct sk_buff skb, __u16 flags);
	645	int hci_send_sco(struct hci_conn conn, struct sk_buff skb);
	646
a9de9248	647	void hci_sent_cmd_data(struct hci_dev hdev, __u16 opcode);
1da177e4 LT	648
	649	void hci_si_event(struct hci_dev hdev, int type, int dlen, void data);
	650
	651	/* ----- HCI Sockets ----- */
	652	void hci_send_to_sock(struct hci_dev hdev, struct sk_buff skb);
	653
	654	/* HCI info for socket */
	655	#define hci_pi(sk) ((struct hci_pinfo *) sk)
	656
	657	struct hci_pinfo {
	658	struct bt_sock bt;
	659	struct hci_dev *hdev;
	660	struct hci_filter filter;
	661	__u32 cmsg_mask;
	662	};
	663
	664	/* HCI security filter */
	665	#define HCI_SFLT_MAX_OGF 5
	666
	667	struct hci_sec_filter {
	668	__u32 type_mask;
	669	__u32 event_mask[2];
	670	__u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
	671	};
	672
	673	/* ----- HCI requests ----- */
	674	#define HCI_REQ_DONE 0
	675	#define HCI_REQ_PEND 1
	676	#define HCI_REQ_CANCELED 2
	677
	678	#define hci_req_lock(d) down(&d->req_lock)
	679	#define hci_req_unlock(d) up(&d->req_lock)
	680
	681	void hci_req_complete(struct hci_dev *hdev, int result);
	682
	683	#endif /* __HCI_CORE_H */