[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 mutex		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 rfkill		*rfkill;

	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;
	__u16            disc_timeout;
	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_add;
	struct work_struct work_del;

	struct device	dev;
	atomic_t	devref;

	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, __u8 auth_type);
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);

void hci_conn_hold_device(struct hci_conn *conn);
void hci_conn_put_device(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(conn->disc_timeout);
				if (!conn->out)
					timeo *= 2;
			} else
				timeo = msecs_to_jiffies(10);
		} else
			timeo = msecs_to_jiffies(10);
		mod_timer(&conn->disc_timer, jiffies + timeo);
	}
}

/* ----- 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);

int hci_recv_frame(struct sk_buff *skb);
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_init_sysfs(struct hci_conn *conn);
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);
	int (*disconn_cfm)	(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 int hci_proto_disconn_ind(struct hci_conn *conn)
{
	register struct hci_proto *hp;
	int reason = 0x13;

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

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

	return reason;
}

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

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

	hp = hci_proto[HCI_PROTO_SCO];
	if (hp && hp->disconn_cfm)
		hp->disconn_cfm(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;

	if (conn->sec_level == BT_SECURITY_SDP)
		conn->sec_level = BT_SECURITY_LOW;

	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)		mutex_lock(&d->req_lock)
#define hci_req_unlock(d)	mutex_unlock(&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	119
a6a67efd	120	struct mutex req_lock;
1da177e4 LT	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	139
611b30f7 MH	140	struct rfkill *rfkill;
611b30f7 MH	141
1da177e4 LT	142	struct module *owner;
	143
	144	int (open)(struct hci_dev hdev);
	145	int (close)(struct hci_dev hdev);
	146	int (flush)(struct hci_dev hdev);
	147	int (send)(struct sk_buff skb);
	148	void (destruct)(struct hci_dev hdev);
	149	void (notify)(struct hci_dev hdev, unsigned int evt);
	150	int (ioctl)(struct hci_dev hdev, unsigned int cmd, unsigned long arg);
	151	};
	152
	153	struct hci_conn {
	154	struct list_head list;
	155
	156	atomic_t refcnt;
	157	spinlock_t lock;
	158
	159	bdaddr_t dst;
	160	__u16 handle;
	161	__u16 state;
04837f64	162	__u8 mode;
1da177e4 LT	163	__u8 type;
1da177e4 LT	164	__u8 out;
4c67bc74	165	__u8 attempt;
1da177e4	166	__u8 dev_class[3];
04837f64	167	__u8 features[8];
41a96212	168	__u8 ssp_mode;
04837f64	169	__u16 interval;
a8746417	170	__u16 pkt_type;
04837f64	171	__u16 link_policy;
1da177e4	172	__u32 link_mode;
40be492f	173	__u8 auth_type;
8c1b2355	174	__u8 sec_level;
04837f64	175	__u8 power_save;
052b30b0	176	__u16 disc_timeout;
1da177e4	177	unsigned long pend;
04837f64	178
1da177e4	179	unsigned int sent;
04837f64	180
1da177e4 LT	181	struct sk_buff_head data_q;
1da177e4 LT	182
04837f64 MH	183	struct timer_list disc_timer;
	184	struct timer_list idle_timer;
	185
f3784d83 RQ	186	struct work_struct work_add;
f3784d83 RQ	187	struct work_struct work_del;
b219e3ac MH	188
b219e3ac MH	189	struct device dev;
9eba32b8	190	atomic_t devref;
b219e3ac	191
1da177e4 LT	192	struct hci_dev *hdev;
	193	void *l2cap_data;
	194	void *sco_data;
	195	void *priv;
	196
	197	struct hci_conn *link;
	198	};
	199
	200	extern struct hci_proto *hci_proto[];
	201	extern struct list_head hci_dev_list;
	202	extern struct list_head hci_cb_list;
	203	extern rwlock_t hci_dev_list_lock;
	204	extern rwlock_t hci_cb_list_lock;
	205
	206	/* ----- Inquiry cache ----- */
	207	#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds
	208	#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds
	209
	210	#define inquiry_cache_lock(c) spin_lock(&c->lock)
	211	#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
	212	#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
	213	#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
	214
	215	static inline void inquiry_cache_init(struct hci_dev *hdev)
	216	{
	217	struct inquiry_cache *c = &hdev->inq_cache;
	218	spin_lock_init(&c->lock);
	219	c->list = NULL;
	220	}
	221
	222	static inline int inquiry_cache_empty(struct hci_dev *hdev)
	223	{
	224	struct inquiry_cache *c = &hdev->inq_cache;
	225	return (c->list == NULL);
	226	}
	227
	228	static inline long inquiry_cache_age(struct hci_dev *hdev)
	229	{
	230	struct inquiry_cache *c = &hdev->inq_cache;
	231	return jiffies - c->timestamp;
	232	}
	233
	234	static inline long inquiry_entry_age(struct inquiry_entry *e)
	235	{
	236	return jiffies - e->timestamp;
	237	}
	238
	239	struct inquiry_entry hci_inquiry_cache_lookup(struct hci_dev hdev, bdaddr_t *bdaddr);
	240	void hci_inquiry_cache_update(struct hci_dev hdev, struct inquiry_data data);
	241
	242	/* ----- HCI Connections ----- */
	243	enum {
	244	HCI_CONN_AUTH_PEND,
	245	HCI_CONN_ENCRYPT_PEND,
04837f64 MH	246	HCI_CONN_RSWITCH_PEND,
04837f64 MH	247	HCI_CONN_MODE_CHANGE_PEND,
1da177e4 LT	248	};
	249
	250	static inline void hci_conn_hash_init(struct hci_dev *hdev)
	251	{
	252	struct hci_conn_hash *h = &hdev->conn_hash;
	253	INIT_LIST_HEAD(&h->list);
	254	spin_lock_init(&h->lock);
	255	h->acl_num = 0;
	256	h->sco_num = 0;
	257	}
	258
	259	static inline void hci_conn_hash_add(struct hci_dev hdev, struct hci_conn c)
	260	{
	261	struct hci_conn_hash *h = &hdev->conn_hash;
	262	list_add(&c->list, &h->list);
	263	if (c->type == ACL_LINK)
	264	h->acl_num++;
	265	else
	266	h->sco_num++;
	267	}
	268
	269	static inline void hci_conn_hash_del(struct hci_dev hdev, struct hci_conn c)
	270	{
	271	struct hci_conn_hash *h = &hdev->conn_hash;
	272	list_del(&c->list);
	273	if (c->type == ACL_LINK)
	274	h->acl_num--;
	275	else
	276	h->sco_num--;
	277	}
	278
	279	static inline struct hci_conn hci_conn_hash_lookup_handle(struct hci_dev hdev,
	280	__u16 handle)
	281	{
	282	struct hci_conn_hash *h = &hdev->conn_hash;
	283	struct list_head *p;
	284	struct hci_conn *c;
	285
	286	list_for_each(p, &h->list) {
	287	c = list_entry(p, struct hci_conn, list);
	288	if (c->handle == handle)
	289	return c;
	290	}
	291	return NULL;
	292	}
	293
	294	static inline struct hci_conn hci_conn_hash_lookup_ba(struct hci_dev hdev,
	295	__u8 type, bdaddr_t *ba)
	296	{
	297	struct hci_conn_hash *h = &hdev->conn_hash;
	298	struct list_head *p;
	299	struct hci_conn *c;
	300
	301	list_for_each(p, &h->list) {
	302	c = list_entry(p, struct hci_conn, list);
	303	if (c->type == type && !bacmp(&c->dst, ba))
	304	return c;
	305	}
	306	return NULL;
	307	}
	308
4c67bc74 MH	309	static inline struct hci_conn hci_conn_hash_lookup_state(struct hci_dev hdev,
	310	__u8 type, __u16 state)
	311	{
	312	struct hci_conn_hash *h = &hdev->conn_hash;
	313	struct list_head *p;
	314	struct hci_conn *c;
	315
	316	list_for_each(p, &h->list) {
	317	c = list_entry(p, struct hci_conn, list);
	318	if (c->type == type && c->state == state)
	319	return c;
	320	}
	321	return NULL;
	322	}
	323
	324	void hci_acl_connect(struct hci_conn *conn);
1da177e4 LT	325	void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
1da177e4 LT	326	void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82	327	void hci_setup_sync(struct hci_conn *conn, __u16 handle);
1da177e4 LT	328
1da177e4 LT	329	struct hci_conn hci_conn_add(struct hci_dev hdev, int type, bdaddr_t *dst);
a9de9248 MH	330	int hci_conn_del(struct hci_conn *conn);
	331	void hci_conn_hash_flush(struct hci_dev *hdev);
	332	void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4	333
8c1b2355	334	struct hci_conn hci_connect(struct hci_dev hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
e7c29cb1	335	int hci_conn_check_link_mode(struct hci_conn *conn);
0684e5f9	336	int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4	337	int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355	338	int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4	339
04837f64 MH	340	void hci_conn_enter_active_mode(struct hci_conn *conn);
04837f64 MH	341	void hci_conn_enter_sniff_mode(struct hci_conn *conn);
1da177e4	342
9eba32b8 MH	343	void hci_conn_hold_device(struct hci_conn *conn);
	344	void hci_conn_put_device(struct hci_conn *conn);
	345
1da177e4 LT	346	static inline void hci_conn_hold(struct hci_conn *conn)
	347	{
	348	atomic_inc(&conn->refcnt);
04837f64	349	del_timer(&conn->disc_timer);
1da177e4 LT	350	}
	351
	352	static inline void hci_conn_put(struct hci_conn *conn)
	353	{
	354	if (atomic_dec_and_test(&conn->refcnt)) {
04837f64	355	unsigned long timeo;
1da177e4	356	if (conn->type == ACL_LINK) {
04837f64	357	del_timer(&conn->idle_timer);
6ac59344	358	if (conn->state == BT_CONNECTED) {
052b30b0	359	timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344	360	if (!conn->out)
052b30b0	361	timeo *= 2;
6ac59344 MH	362	} else
6ac59344 MH	363	timeo = msecs_to_jiffies(10);
1da177e4	364	} else
04837f64 MH	365	timeo = msecs_to_jiffies(10);
04837f64 MH	366	mod_timer(&conn->disc_timer, jiffies + timeo);
1da177e4 LT	367	}
	368	}
	369
1da177e4 LT	370	/* ----- HCI Devices ----- */
	371	static inline void __hci_dev_put(struct hci_dev *d)
	372	{
	373	if (atomic_dec_and_test(&d->refcnt))
	374	d->destruct(d);
	375	}
	376
	377	static inline void hci_dev_put(struct hci_dev *d)
	378	{
	379	__hci_dev_put(d);
	380	module_put(d->owner);
	381	}
	382
	383	static inline struct hci_dev __hci_dev_hold(struct hci_dev d)
	384	{
	385	atomic_inc(&d->refcnt);
	386	return d;
	387	}
	388
	389	static inline struct hci_dev hci_dev_hold(struct hci_dev d)
	390	{
	391	if (try_module_get(d->owner))
	392	return __hci_dev_hold(d);
	393	return NULL;
	394	}
	395
	396	#define hci_dev_lock(d) spin_lock(&d->lock)
	397	#define hci_dev_unlock(d) spin_unlock(&d->lock)
	398	#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
	399	#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
	400
	401	struct hci_dev *hci_dev_get(int index);
	402	struct hci_dev hci_get_route(bdaddr_t src, bdaddr_t *dst);
	403
	404	struct hci_dev *hci_alloc_dev(void);
	405	void hci_free_dev(struct hci_dev *hdev);
	406	int hci_register_dev(struct hci_dev *hdev);
	407	int hci_unregister_dev(struct hci_dev *hdev);
	408	int hci_suspend_dev(struct hci_dev *hdev);
	409	int hci_resume_dev(struct hci_dev *hdev);
	410	int hci_dev_open(__u16 dev);
	411	int hci_dev_close(__u16 dev);
	412	int hci_dev_reset(__u16 dev);
	413	int hci_dev_reset_stat(__u16 dev);
	414	int hci_dev_cmd(unsigned int cmd, void __user *arg);
	415	int hci_get_dev_list(void __user *arg);
	416	int hci_get_dev_info(void __user *arg);
	417	int hci_get_conn_list(void __user *arg);
	418	int hci_get_conn_info(struct hci_dev hdev, void __user arg);
40be492f	419	int hci_get_auth_info(struct hci_dev hdev, void __user arg);
1da177e4 LT	420	int hci_inquiry(void __user *arg);
	421
	422	void hci_event_packet(struct hci_dev hdev, struct sk_buff skb);
	423
76bca880	424	int hci_recv_frame(struct sk_buff *skb);
ef222013 MH	425	int hci_recv_fragment(struct hci_dev hdev, int type, void data, int count);
ef222013 MH	426
1da177e4 LT	427	int hci_register_sysfs(struct hci_dev *hdev);
1da177e4 LT	428	void hci_unregister_sysfs(struct hci_dev *hdev);
a67e899c	429	void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac MH	430	void hci_conn_add_sysfs(struct hci_conn *conn);
b219e3ac MH	431	void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4	432
a91f2e39	433	#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4 LT	434
1da177e4 LT	435	/* ----- LMP capabilities ----- */
04837f64 MH	436	#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
	437	#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
	438	#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
	439	#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909	440	#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974	441	#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
1da177e4 LT	442
	443	/* ----- HCI protocols ----- */
	444	struct hci_proto {
8c1b2355	445	char *name;
1da177e4 LT	446	unsigned int id;
	447	unsigned long flags;
	448
	449	void *priv;
	450
8c1b2355	451	int (connect_ind) (struct hci_dev hdev, bdaddr_t *bdaddr, __u8 type);
1da177e4	452	int (connect_cfm) (struct hci_conn conn, __u8 status);
2950f21a MH	453	int (disconn_ind) (struct hci_conn conn);
2950f21a MH	454	int (disconn_cfm) (struct hci_conn conn, __u8 reason);
1da177e4 LT	455	int (recv_acldata) (struct hci_conn conn, struct sk_buff *skb, __u16 flags);
1da177e4 LT	456	int (recv_scodata) (struct hci_conn conn, struct sk_buff *skb);
8c1b2355	457	int (security_cfm) (struct hci_conn conn, __u8 status, __u8 encrypt);
1da177e4 LT	458	};
	459
	460	static inline int hci_proto_connect_ind(struct hci_dev hdev, bdaddr_t bdaddr, __u8 type)
	461	{
	462	register struct hci_proto *hp;
	463	int mask = 0;
8c1b2355	464
1da177e4 LT	465	hp = hci_proto[HCI_PROTO_L2CAP];
	466	if (hp && hp->connect_ind)
	467	mask \|= hp->connect_ind(hdev, bdaddr, type);
	468
	469	hp = hci_proto[HCI_PROTO_SCO];
	470	if (hp && hp->connect_ind)
	471	mask \|= hp->connect_ind(hdev, bdaddr, type);
	472
	473	return mask;
	474	}
	475
	476	static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
	477	{
	478	register struct hci_proto *hp;
	479
	480	hp = hci_proto[HCI_PROTO_L2CAP];
	481	if (hp && hp->connect_cfm)
	482	hp->connect_cfm(conn, status);
	483
	484	hp = hci_proto[HCI_PROTO_SCO];
	485	if (hp && hp->connect_cfm)
	486	hp->connect_cfm(conn, status);
	487	}
	488
2950f21a	489	static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4 LT	490	{
1da177e4 LT	491	register struct hci_proto *hp;
2950f21a	492	int reason = 0x13;
1da177e4 LT	493
	494	hp = hci_proto[HCI_PROTO_L2CAP];
	495	if (hp && hp->disconn_ind)
2950f21a	496	reason = hp->disconn_ind(conn);
1da177e4 LT	497
	498	hp = hci_proto[HCI_PROTO_SCO];
	499	if (hp && hp->disconn_ind)
2950f21a MH	500	reason = hp->disconn_ind(conn);
	501
	502	return reason;
	503	}
	504
	505	static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
	506	{
	507	register struct hci_proto *hp;
	508
	509	hp = hci_proto[HCI_PROTO_L2CAP];
	510	if (hp && hp->disconn_cfm)
	511	hp->disconn_cfm(conn, reason);
	512
	513	hp = hci_proto[HCI_PROTO_SCO];
	514	if (hp && hp->disconn_cfm)
	515	hp->disconn_cfm(conn, reason);
1da177e4 LT	516	}
	517
	518	static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
	519	{
	520	register struct hci_proto *hp;
8c1b2355 MH	521	__u8 encrypt;
	522
	523	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	524	return;
	525
	526	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
1da177e4 LT	527
1da177e4 LT	528	hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355 MH	529	if (hp && hp->security_cfm)
8c1b2355 MH	530	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	531
1da177e4 LT	532	hp = hci_proto[HCI_PROTO_SCO];
8c1b2355 MH	533	if (hp && hp->security_cfm)
8c1b2355 MH	534	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	535	}
1da177e4 LT	536
9719f8af	537	static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
1da177e4 LT	538	{
	539	register struct hci_proto *hp;
	540
	541	hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355 MH	542	if (hp && hp->security_cfm)
8c1b2355 MH	543	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	544
1da177e4 LT	545	hp = hci_proto[HCI_PROTO_SCO];
8c1b2355 MH	546	if (hp && hp->security_cfm)
8c1b2355 MH	547	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	548	}
	549
	550	int hci_register_proto(struct hci_proto *hproto);
	551	int hci_unregister_proto(struct hci_proto *hproto);
	552
	553	/* ----- HCI callbacks ----- */
	554	struct hci_cb {
	555	struct list_head list;
	556
	557	char *name;
	558
8c1b2355	559	void (security_cfm) (struct hci_conn conn, __u8 status, __u8 encrypt);
1da177e4 LT	560	void (key_change_cfm) (struct hci_conn conn, __u8 status);
	561	void (role_switch_cfm) (struct hci_conn conn, __u8 status, __u8 role);
	562	};
	563
	564	static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
	565	{
	566	struct list_head *p;
8c1b2355	567	__u8 encrypt;
1da177e4 LT	568
	569	hci_proto_auth_cfm(conn, status);
	570
8c1b2355 MH	571	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	572	return;
	573
	574	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
	575
1da177e4 LT	576	read_lock_bh(&hci_cb_list_lock);
	577	list_for_each(p, &hci_cb_list) {
	578	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355 MH	579	if (cb->security_cfm)
8c1b2355 MH	580	cb->security_cfm(conn, status, encrypt);
1da177e4 LT	581	}
	582	read_unlock_bh(&hci_cb_list_lock);
	583	}
	584
	585	static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
	586	{
	587	struct list_head *p;
	588
435fef20 MH	589	if (conn->sec_level == BT_SECURITY_SDP)
	590	conn->sec_level = BT_SECURITY_LOW;
	591
9719f8af	592	hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4 LT	593
	594	read_lock_bh(&hci_cb_list_lock);
	595	list_for_each(p, &hci_cb_list) {
	596	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355 MH	597	if (cb->security_cfm)
8c1b2355 MH	598	cb->security_cfm(conn, status, encrypt);
1da177e4 LT	599	}
	600	read_unlock_bh(&hci_cb_list_lock);
	601	}
	602
	603	static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
	604	{
	605	struct list_head *p;
	606
	607	read_lock_bh(&hci_cb_list_lock);
	608	list_for_each(p, &hci_cb_list) {
	609	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
	610	if (cb->key_change_cfm)
	611	cb->key_change_cfm(conn, status);
	612	}
	613	read_unlock_bh(&hci_cb_list_lock);
	614	}
	615
	616	static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
	617	{
	618	struct list_head *p;
	619
	620	read_lock_bh(&hci_cb_list_lock);
	621	list_for_each(p, &hci_cb_list) {
	622	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
	623	if (cb->role_switch_cfm)
	624	cb->role_switch_cfm(conn, status, role);
	625	}
	626	read_unlock_bh(&hci_cb_list_lock);
	627	}
	628
	629	int hci_register_cb(struct hci_cb *hcb);
	630	int hci_unregister_cb(struct hci_cb *hcb);
	631
	632	int hci_register_notifier(struct notifier_block *nb);
	633	int hci_unregister_notifier(struct notifier_block *nb);
	634
a9de9248	635	int hci_send_cmd(struct hci_dev hdev, __u16 opcode, __u32 plen, void param);
1da177e4 LT	636	int hci_send_acl(struct hci_conn conn, struct sk_buff skb, __u16 flags);
	637	int hci_send_sco(struct hci_conn conn, struct sk_buff skb);
	638
a9de9248	639	void hci_sent_cmd_data(struct hci_dev hdev, __u16 opcode);
1da177e4 LT	640
	641	void hci_si_event(struct hci_dev hdev, int type, int dlen, void data);
	642
	643	/* ----- HCI Sockets ----- */
	644	void hci_send_to_sock(struct hci_dev hdev, struct sk_buff skb);
	645
	646	/* HCI info for socket */
	647	#define hci_pi(sk) ((struct hci_pinfo *) sk)
	648
	649	struct hci_pinfo {
	650	struct bt_sock bt;
	651	struct hci_dev *hdev;
	652	struct hci_filter filter;
	653	__u32 cmsg_mask;
	654	};
	655
	656	/* HCI security filter */
	657	#define HCI_SFLT_MAX_OGF 5
	658
	659	struct hci_sec_filter {
	660	__u32 type_mask;
	661	__u32 event_mask[2];
	662	__u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
	663	};
	664
	665	/* ----- HCI requests ----- */
	666	#define HCI_REQ_DONE 0
	667	#define HCI_REQ_PEND 1
	668	#define HCI_REQ_CANCELED 2
	669
a6a67efd TG	670	#define hci_req_lock(d) mutex_lock(&d->req_lock)
a6a67efd TG	671	#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 LT	672
	673	void hci_req_complete(struct hci_dev *hdev, int result);
	674
	675	#endif /* __HCI_CORE_H */