

#ifndef __HCI_CORE_H
#define __HCI_CORE_H

#include <linux/idr.h>
#include <linux/leds.h>
#include <linux/rculist.h>
#include <linux/spinlock.h>
#include <linux/srcu.h>

#include <net/bluetooth/hci.h>
#include <net/bluetooth/hci_sync.h>
#include <net/bluetooth/hci_sock.h>


#define HCI_PRIO_MAX	7


#define HCI_MAX_ID 10000


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 list_head	all;		
	struct list_head	list;		
	enum {
		NAME_NOT_KNOWN,
		NAME_NEEDED,
		NAME_PENDING,
		NAME_KNOWN,
	} name_state;
	__u32			timestamp;
	struct inquiry_data	data;
};

struct discovery_state {
	int			type;
	enum {
		DISCOVERY_STOPPED,
		DISCOVERY_STARTING,
		DISCOVERY_FINDING,
		DISCOVERY_RESOLVING,
		DISCOVERY_STOPPING,
	} state;
	struct list_head	all;	
	struct list_head	unknown;	
	struct list_head	resolve;	
	__u32			timestamp;
	bdaddr_t		last_adv_addr;
	u8			last_adv_addr_type;
	s8			last_adv_rssi;
	u32			last_adv_flags;
	u8			last_adv_data[HCI_MAX_EXT_AD_LENGTH];
	u8			last_adv_data_len;
	bool			report_invalid_rssi;
	bool			result_filtering;
	bool			limited;
	s8			rssi;
	u16			uuid_count;
	u8			(*uuids)[16];
	unsigned long		scan_start;
	unsigned long		scan_duration;
	unsigned long		name_resolve_timeout;
	spinlock_t		lock;
};

#define SUSPEND_NOTIFIER_TIMEOUT	msecs_to_jiffies(2000) 

enum suspend_tasks {
	SUSPEND_PAUSE_DISCOVERY,
	SUSPEND_UNPAUSE_DISCOVERY,

	SUSPEND_PAUSE_ADVERTISING,
	SUSPEND_UNPAUSE_ADVERTISING,

	SUSPEND_SCAN_DISABLE,
	SUSPEND_SCAN_ENABLE,
	SUSPEND_DISCONNECTING,

	SUSPEND_POWERING_DOWN,

	SUSPEND_PREPARE_NOTIFIER,

	SUSPEND_SET_ADV_FILTER,
	__SUSPEND_NUM_TASKS
};

enum suspended_state {
	BT_RUNNING = 0,
	BT_SUSPEND_DISCONNECT,
	BT_SUSPEND_CONFIGURE_WAKE,
};

struct hci_conn_hash {
	struct list_head list;
	unsigned int     acl_num;
	unsigned int     amp_num;
	unsigned int     sco_num;
	unsigned int     iso_num;
	unsigned int     le_num;
	unsigned int     le_num_peripheral;
};

struct bdaddr_list {
	struct list_head list;
	bdaddr_t bdaddr;
	u8 bdaddr_type;
};

struct codec_list {
	struct list_head list;
	u8	id;
	__u16	cid;
	__u16	vid;
	u8	transport;
	u8	num_caps;
	u32	len;
	struct hci_codec_caps caps[];
};

struct bdaddr_list_with_irk {
	struct list_head list;
	bdaddr_t bdaddr;
	u8 bdaddr_type;
	u8 peer_irk[16];
	u8 local_irk[16];
};


enum hci_conn_flags {
	HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
	HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
};
typedef u8 hci_conn_flags_t;

struct bdaddr_list_with_flags {
	struct list_head list;
	bdaddr_t bdaddr;
	u8 bdaddr_type;
	hci_conn_flags_t flags;
};

struct bt_uuid {
	struct list_head list;
	u8 uuid[16];
	u8 size;
	u8 svc_hint;
};

struct blocked_key {
	struct list_head list;
	struct rcu_head rcu;
	u8 type;
	u8 val[16];
};

struct smp_csrk {
	bdaddr_t bdaddr;
	u8 bdaddr_type;
	u8 type;
	u8 val[16];
};

struct smp_ltk {
	struct list_head list;
	struct rcu_head rcu;
	bdaddr_t bdaddr;
	u8 bdaddr_type;
	u8 authenticated;
	u8 type;
	u8 enc_size;
	__le16 ediv;
	__le64 rand;
	u8 val[16];
};

struct smp_irk {
	struct list_head list;
	struct rcu_head rcu;
	bdaddr_t rpa;
	bdaddr_t bdaddr;
	u8 addr_type;
	u8 val[16];
};

struct link_key {
	struct list_head list;
	struct rcu_head rcu;
	bdaddr_t bdaddr;
	u8 type;
	u8 val[HCI_LINK_KEY_SIZE];
	u8 pin_len;
};

struct oob_data {
	struct list_head list;
	bdaddr_t bdaddr;
	u8 bdaddr_type;
	u8 present;
	u8 hash192[16];
	u8 rand192[16];
	u8 hash256[16];
	u8 rand256[16];
};

struct adv_info {
	struct list_head list;
	bool	enabled;
	bool	pending;
	bool	periodic;
	__u8	mesh;
	__u8	instance;
	__u32	flags;
	__u16	timeout;
	__u16	remaining_time;
	__u16	duration;
	__u16	adv_data_len;
	__u8	adv_data[HCI_MAX_EXT_AD_LENGTH];
	bool	adv_data_changed;
	__u16	scan_rsp_len;
	__u8	scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
	bool	scan_rsp_changed;
	__u16	per_adv_data_len;
	__u8	per_adv_data[HCI_MAX_PER_AD_LENGTH];
	__s8	tx_power;
	__u32   min_interval;
	__u32   max_interval;
	bdaddr_t	random_addr;
	bool 		rpa_expired;
	struct delayed_work	rpa_expired_cb;
};

#define HCI_MAX_ADV_INSTANCES		5
#define HCI_DEFAULT_ADV_DURATION	2

#define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F

#define DATA_CMP(_d1, _l1, _d2, _l2) \
	(_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)

#define ADV_DATA_CMP(_adv, _data, _len) \
	DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)

#define SCAN_RSP_CMP(_adv, _data, _len) \
	DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)

struct monitored_device {
	struct list_head list;

	bdaddr_t bdaddr;
	__u8     addr_type;
	__u16    handle;
	bool     notified;
};

struct adv_pattern {
	struct list_head list;
	__u8 ad_type;
	__u8 offset;
	__u8 length;
	__u8 value[HCI_MAX_EXT_AD_LENGTH];
};

struct adv_rssi_thresholds {
	__s8 low_threshold;
	__s8 high_threshold;
	__u16 low_threshold_timeout;
	__u16 high_threshold_timeout;
	__u8 sampling_period;
};

struct adv_monitor {
	struct list_head patterns;
	struct adv_rssi_thresholds rssi;
	__u16		handle;

	enum {
		ADV_MONITOR_STATE_NOT_REGISTERED,
		ADV_MONITOR_STATE_REGISTERED,
		ADV_MONITOR_STATE_OFFLOADED
	} state;
};

#define HCI_MIN_ADV_MONITOR_HANDLE		1
#define HCI_MAX_ADV_MONITOR_NUM_HANDLES		32
#define HCI_MAX_ADV_MONITOR_NUM_PATTERNS	16
#define HCI_ADV_MONITOR_EXT_NONE		1
#define HCI_ADV_MONITOR_EXT_MSFT		2

#define HCI_MAX_SHORT_NAME_LENGTH	10

#define HCI_CONN_HANDLE_UNSET		0xffff
#define HCI_CONN_HANDLE_MAX		0x0eff


#define HCI_MIN_ENC_KEY_SIZE		7


#define HCI_DEFAULT_RPA_TIMEOUT		(15 * 60)


#define DEFAULT_CONN_INFO_MIN_AGE	1000
#define DEFAULT_CONN_INFO_MAX_AGE	3000

#define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8

struct amp_assoc {
	__u16	len;
	__u16	offset;
	__u16	rem_len;
	__u16	len_so_far;
	__u8	data[HCI_MAX_AMP_ASSOC_SIZE];
};

#define HCI_MAX_PAGES	3

struct hci_dev {
	struct list_head list;
	struct srcu_struct srcu;
	struct mutex	lock;

	const char	*name;
	unsigned long	flags;
	__u16		id;
	__u8		bus;
	__u8		dev_type;
	bdaddr_t	bdaddr;
	bdaddr_t	setup_addr;
	bdaddr_t	public_addr;
	bdaddr_t	random_addr;
	bdaddr_t	static_addr;
	__u8		adv_addr_type;
	__u8		dev_name[HCI_MAX_NAME_LENGTH];
	__u8		short_name[HCI_MAX_SHORT_NAME_LENGTH];
	__u8		eir[HCI_MAX_EIR_LENGTH];
	__u16		appearance;
	__u8		dev_class[3];
	__u8		major_class;
	__u8		minor_class;
	__u8		max_page;
	__u8		features[HCI_MAX_PAGES][8];
	__u8		le_features[8];
	__u8		le_accept_list_size;
	__u8		le_resolv_list_size;
	__u8		le_num_of_adv_sets;
	__u8		le_states[8];
	__u8		mesh_ad_types[16];
	__u8		mesh_send_ref;
	__u8		commands[64];
	__u8		hci_ver;
	__u16		hci_rev;
	__u8		lmp_ver;
	__u16		manufacturer;
	__u16		lmp_subver;
	__u16		voice_setting;
	__u8		num_iac;
	__u16		stored_max_keys;
	__u16		stored_num_keys;
	__u8		io_capability;
	__s8		inq_tx_power;
	__u8		err_data_reporting;
	__u16		page_scan_interval;
	__u16		page_scan_window;
	__u8		page_scan_type;
	__u8		le_adv_channel_map;
	__u16		le_adv_min_interval;
	__u16		le_adv_max_interval;
	__u8		le_scan_type;
	__u16		le_scan_interval;
	__u16		le_scan_window;
	__u16		le_scan_int_suspend;
	__u16		le_scan_window_suspend;
	__u16		le_scan_int_discovery;
	__u16		le_scan_window_discovery;
	__u16		le_scan_int_adv_monitor;
	__u16		le_scan_window_adv_monitor;
	__u16		le_scan_int_connect;
	__u16		le_scan_window_connect;
	__u16		le_conn_min_interval;
	__u16		le_conn_max_interval;
	__u16		le_conn_latency;
	__u16		le_supv_timeout;
	__u16		le_def_tx_len;
	__u16		le_def_tx_time;
	__u16		le_max_tx_len;
	__u16		le_max_tx_time;
	__u16		le_max_rx_len;
	__u16		le_max_rx_time;
	__u8		le_max_key_size;
	__u8		le_min_key_size;
	__u16		discov_interleaved_timeout;
	__u16		conn_info_min_age;
	__u16		conn_info_max_age;
	__u16		auth_payload_timeout;
	__u8		min_enc_key_size;
	__u8		max_enc_key_size;
	__u8		pairing_opts;
	__u8		ssp_debug_mode;
	__u8		hw_error_code;
	__u32		clock;
	__u16		advmon_allowlist_duration;
	__u16		advmon_no_filter_duration;
	__u8		enable_advmon_interleave_scan;

	__u16		devid_source;
	__u16		devid_vendor;
	__u16		devid_product;
	__u16		devid_version;

	__u8		def_page_scan_type;
	__u16		def_page_scan_int;
	__u16		def_page_scan_window;
	__u8		def_inq_scan_type;
	__u16		def_inq_scan_int;
	__u16		def_inq_scan_window;
	__u16		def_br_lsto;
	__u16		def_page_timeout;
	__u16		def_multi_adv_rotation_duration;
	__u16		def_le_autoconnect_timeout;
	__s8		min_le_tx_power;
	__s8		max_le_tx_power;

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

	__u32		idle_timeout;
	__u16		sniff_min_interval;
	__u16		sniff_max_interval;

	__u8		amp_status;
	__u32		amp_total_bw;
	__u32		amp_max_bw;
	__u32		amp_min_latency;
	__u32		amp_max_pdu;
	__u8		amp_type;
	__u16		amp_pal_cap;
	__u16		amp_assoc_size;
	__u32		amp_max_flush_to;
	__u32		amp_be_flush_to;

	struct amp_assoc	loc_assoc;

	__u8		flow_ctl_mode;

	unsigned int	auto_accept_delay;

	unsigned long	quirks;

	atomic_t	cmd_cnt;
	unsigned int	acl_cnt;
	unsigned int	sco_cnt;
	unsigned int	le_cnt;
	unsigned int	iso_cnt;

	unsigned int	acl_mtu;
	unsigned int	sco_mtu;
	unsigned int	le_mtu;
	unsigned int	iso_mtu;
	unsigned int	acl_pkts;
	unsigned int	sco_pkts;
	unsigned int	le_pkts;
	unsigned int	iso_pkts;

	__u16		block_len;
	__u16		block_mtu;
	__u16		num_blocks;
	__u16		block_cnt;

	unsigned long	acl_last_tx;
	unsigned long	sco_last_tx;
	unsigned long	le_last_tx;

	__u8		le_tx_def_phys;
	__u8		le_rx_def_phys;

	struct workqueue_struct	*workqueue;
	struct workqueue_struct	*req_workqueue;

	struct work_struct	power_on;
	struct delayed_work	power_off;
	struct work_struct	error_reset;
	struct work_struct	cmd_sync_work;
	struct list_head	cmd_sync_work_list;
	struct mutex		cmd_sync_work_lock;
	struct mutex		unregister_lock;
	struct work_struct	cmd_sync_cancel_work;
	struct work_struct	reenable_adv_work;

	__u16			discov_timeout;
	struct delayed_work	discov_off;

	struct delayed_work	service_cache;

	struct delayed_work	cmd_timer;
	struct delayed_work	ncmd_timer;

	struct work_struct	rx_work;
	struct work_struct	cmd_work;
	struct work_struct	tx_work;

	struct delayed_work	le_scan_disable;
	struct delayed_work	le_scan_restart;

	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		*recv_event;

	struct mutex		req_lock;
	wait_queue_head_t	req_wait_q;
	__u32			req_status;
	__u32			req_result;
	struct sk_buff		*req_skb;

	void			*smp_data;
	void			*smp_bredr_data;

	struct discovery_state	discovery;

	int			discovery_old_state;
	bool			discovery_paused;
	int			advertising_old_state;
	bool			advertising_paused;

	struct notifier_block	suspend_notifier;
	enum suspended_state	suspend_state_next;
	enum suspended_state	suspend_state;
	bool			scanning_paused;
	bool			suspended;
	u8			wake_reason;
	bdaddr_t		wake_addr;
	u8			wake_addr_type;

	struct hci_conn_hash	conn_hash;

	struct list_head	mesh_pending;
	struct list_head	mgmt_pending;
	struct list_head	reject_list;
	struct list_head	accept_list;
	struct list_head	uuids;
	struct list_head	link_keys;
	struct list_head	long_term_keys;
	struct list_head	identity_resolving_keys;
	struct list_head	remote_oob_data;
	struct list_head	le_accept_list;
	struct list_head	le_resolv_list;
	struct list_head	le_conn_params;
	struct list_head	pend_le_conns;
	struct list_head	pend_le_reports;
	struct list_head	blocked_keys;
	struct list_head	local_codecs;

	struct hci_dev_stats	stat;

	atomic_t		promisc;

	const char		*hw_info;
	const char		*fw_info;
	struct dentry		*debugfs;

	struct device		dev;

	struct rfkill		*rfkill;

	DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
	hci_conn_flags_t	conn_flags;

	__s8			adv_tx_power;
	__u8			adv_data[HCI_MAX_EXT_AD_LENGTH];
	__u8			adv_data_len;
	__u8			scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
	__u8			scan_rsp_data_len;
	__u8			per_adv_data[HCI_MAX_PER_AD_LENGTH];
	__u8			per_adv_data_len;

	struct list_head	adv_instances;
	unsigned int		adv_instance_cnt;
	__u8			cur_adv_instance;
	__u16			adv_instance_timeout;
	struct delayed_work	adv_instance_expire;

	struct idr		adv_monitors_idr;
	unsigned int		adv_monitors_cnt;

	__u8			irk[16];
	__u32			rpa_timeout;
	struct delayed_work	rpa_expired;
	bdaddr_t		rpa;

	struct delayed_work	mesh_send_done;

	enum {
		INTERLEAVE_SCAN_NONE,
		INTERLEAVE_SCAN_NO_FILTER,
		INTERLEAVE_SCAN_ALLOWLIST
	} interleave_scan_state;

	struct delayed_work	interleave_scan;

	struct list_head	monitored_devices;
	bool			advmon_pend_notify;

#if IS_ENABLED(CONFIG_BT_LEDS)
	struct led_trigger	*power_led;
#endif

#if IS_ENABLED(CONFIG_BT_MSFTEXT)
	__u16			msft_opcode;
	void			*msft_data;
	bool			msft_curve_validity;
#endif

#if IS_ENABLED(CONFIG_BT_AOSPEXT)
	bool			aosp_capable;
	bool			aosp_quality_report;
#endif

	int (*open)(struct hci_dev *hdev);
	int (*close)(struct hci_dev *hdev);
	int (*flush)(struct hci_dev *hdev);
	int (*setup)(struct hci_dev *hdev);
	int (*shutdown)(struct hci_dev *hdev);
	int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
	void (*notify)(struct hci_dev *hdev, unsigned int evt);
	void (*hw_error)(struct hci_dev *hdev, u8 code);
	int (*post_init)(struct hci_dev *hdev);
	int (*set_diag)(struct hci_dev *hdev, bool enable);
	int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
	void (*cmd_timeout)(struct hci_dev *hdev);
	bool (*wakeup)(struct hci_dev *hdev);
	int (*set_quality_report)(struct hci_dev *hdev, bool enable);
	int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
	int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
				     struct bt_codec *codec, __u8 *vnd_len,
				     __u8 **vnd_data);
};

#define HCI_PHY_HANDLE(handle)	(handle & 0xff)

enum conn_reasons {
	CONN_REASON_PAIR_DEVICE,
	CONN_REASON_L2CAP_CHAN,
	CONN_REASON_SCO_CONNECT,
	CONN_REASON_ISO_CONNECT,
};

struct hci_conn {
	struct list_head list;

	atomic_t	refcnt;

	bdaddr_t	dst;
	__u8		dst_type;
	bdaddr_t	src;
	__u8		src_type;
	bdaddr_t	init_addr;
	__u8		init_addr_type;
	bdaddr_t	resp_addr;
	__u8		resp_addr_type;
	__u8		adv_instance;
	__u16		handle;
	__u16		sync_handle;
	__u16		state;
	__u8		mode;
	__u8		type;
	__u8		role;
	bool		out;
	__u8		attempt;
	__u8		dev_class[3];
	__u8		features[HCI_MAX_PAGES][8];
	__u16		pkt_type;
	__u16		link_policy;
	__u8		key_type;
	__u8		auth_type;
	__u8		sec_level;
	__u8		pending_sec_level;
	__u8		pin_length;
	__u8		enc_key_size;
	__u8		io_capability;
	__u32		passkey_notify;
	__u8		passkey_entered;
	__u16		disc_timeout;
	__u16		conn_timeout;
	__u16		setting;
	__u16		auth_payload_timeout;
	__u16		le_conn_min_interval;
	__u16		le_conn_max_interval;
	__u16		le_conn_interval;
	__u16		le_conn_latency;
	__u16		le_supv_timeout;
	__u8		le_adv_data[HCI_MAX_EXT_AD_LENGTH];
	__u8		le_adv_data_len;
	__u8		le_per_adv_data[HCI_MAX_PER_AD_LENGTH];
	__u8		le_per_adv_data_len;
	__u8		le_tx_phy;
	__u8		le_rx_phy;
	__s8		rssi;
	__s8		tx_power;
	__s8		max_tx_power;
	struct bt_iso_qos iso_qos;
	unsigned long	flags;

	enum conn_reasons conn_reason;

	__u32		clock;
	__u16		clock_accuracy;

	unsigned long	conn_info_timestamp;

	__u8		remote_cap;
	__u8		remote_auth;
	__u8		remote_id;

	unsigned int	sent;

	struct sk_buff_head data_q;
	struct list_head chan_list;

	struct delayed_work disc_work;
	struct delayed_work auto_accept_work;
	struct delayed_work idle_work;
	struct delayed_work le_conn_timeout;
	struct work_struct  le_scan_cleanup;

	struct device	dev;
	struct dentry	*debugfs;

	struct hci_dev	*hdev;
	void		*l2cap_data;
	void		*sco_data;
	void		*iso_data;
	struct amp_mgr	*amp_mgr;

	struct hci_conn	*link;
	struct bt_codec codec;

	void (*connect_cfm_cb)	(struct hci_conn *conn, u8 status);
	void (*security_cfm_cb)	(struct hci_conn *conn, u8 status);
	void (*disconn_cfm_cb)	(struct hci_conn *conn, u8 reason);

	void (*cleanup)(struct hci_conn *conn);
};

struct hci_chan {
	struct list_head list;
	__u16 handle;
	struct hci_conn *conn;
	struct sk_buff_head data_q;
	unsigned int	sent;
	__u8		state;
	bool		amp;
};

struct hci_conn_params {
	struct list_head list;
	struct list_head action;

	bdaddr_t addr;
	u8 addr_type;

	u16 conn_min_interval;
	u16 conn_max_interval;
	u16 conn_latency;
	u16 supervision_timeout;

	enum {
		HCI_AUTO_CONN_DISABLED,
		HCI_AUTO_CONN_REPORT,
		HCI_AUTO_CONN_DIRECT,
		HCI_AUTO_CONN_ALWAYS,
		HCI_AUTO_CONN_LINK_LOSS,
		HCI_AUTO_CONN_EXPLICIT,
	} auto_connect;

	struct hci_conn *conn;
	bool explicit_connect;
	
	hci_conn_flags_t flags;
	u8  privacy_mode;
};

extern struct list_head hci_dev_list;
extern struct list_head hci_cb_list;
extern rwlock_t hci_dev_list_lock;
extern struct mutex hci_cb_list_lock;

#define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
#define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
#define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
#define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
#define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
#define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)

#define hci_dev_clear_volatile_flags(hdev)			\
	do {							\
		hci_dev_clear_flag(hdev, HCI_LE_SCAN);		\
		hci_dev_clear_flag(hdev, HCI_LE_ADV);		\
		hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
		hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);	\
		hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);	\
	} while (0)

#define hci_dev_le_state_simultaneous(hdev) \
	(test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
	 (hdev->le_states[4] & 0x08) &&	 \
	 (hdev->le_states[4] & 0x40) &&	 \
	 (hdev->le_states[3] & 0x10))	


int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
int l2cap_disconn_ind(struct hci_conn *hcon);
void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);

#if IS_ENABLED(CONFIG_BT_BREDR)
int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
#else
static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
				  __u8 *flags)
{
	return 0;
}

static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
{
}
#endif

#if IS_ENABLED(CONFIG_BT_LE)
int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
#else
static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
				  __u8 *flags)
{
	return 0;
}
static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
			    u16 flags)
{
}
#endif


#define INQUIRY_CACHE_AGE_MAX   (HZ*30)   
#define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   

static inline void discovery_init(struct hci_dev *hdev)
{
	spin_lock_init(&hdev->discovery.lock);
	hdev->discovery.state = DISCOVERY_STOPPED;
	INIT_LIST_HEAD(&hdev->discovery.all);
	INIT_LIST_HEAD(&hdev->discovery.unknown);
	INIT_LIST_HEAD(&hdev->discovery.resolve);
	hdev->discovery.report_invalid_rssi = true;
	hdev->discovery.rssi = HCI_RSSI_INVALID;
}

static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
{
	hdev->discovery.result_filtering = false;
	hdev->discovery.report_invalid_rssi = true;
	hdev->discovery.rssi = HCI_RSSI_INVALID;
	hdev->discovery.uuid_count = 0;

	spin_lock(&hdev->discovery.lock);
	kfree(hdev->discovery.uuids);
	hdev->discovery.uuids = NULL;
	spin_unlock(&hdev->discovery.lock);

	hdev->discovery.scan_start = 0;
	hdev->discovery.scan_duration = 0;
}

bool hci_discovery_active(struct hci_dev *hdev);

void hci_discovery_set_state(struct hci_dev *hdev, int state);

static inline int inquiry_cache_empty(struct hci_dev *hdev)
{
	return list_empty(&hdev->discovery.all);
}

static inline long inquiry_cache_age(struct hci_dev *hdev)
{
	struct discovery_state *c = &hdev->discovery;
	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);
struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
						       bdaddr_t *bdaddr);
struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
						       bdaddr_t *bdaddr,
						       int state);
void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
				      struct inquiry_entry *ie);
u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
			     bool name_known);
void hci_inquiry_cache_flush(struct hci_dev *hdev);


enum {
	HCI_CONN_AUTH_PEND,
	HCI_CONN_ENCRYPT_PEND,
	HCI_CONN_RSWITCH_PEND,
	HCI_CONN_MODE_CHANGE_PEND,
	HCI_CONN_SCO_SETUP_PEND,
	HCI_CONN_MGMT_CONNECTED,
	HCI_CONN_SSP_ENABLED,
	HCI_CONN_SC_ENABLED,
	HCI_CONN_AES_CCM,
	HCI_CONN_POWER_SAVE,
	HCI_CONN_FLUSH_KEY,
	HCI_CONN_ENCRYPT,
	HCI_CONN_AUTH,
	HCI_CONN_SECURE,
	HCI_CONN_FIPS,
	HCI_CONN_STK_ENCRYPT,
	HCI_CONN_AUTH_INITIATOR,
	HCI_CONN_DROP,
	HCI_CONN_CANCEL,
	HCI_CONN_PARAM_REMOVAL_PEND,
	HCI_CONN_NEW_LINK_KEY,
	HCI_CONN_SCANNING,
	HCI_CONN_AUTH_FAILURE,
	HCI_CONN_PER_ADV,
};

static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;
	return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
	       test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
}

static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;
	return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
	       test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
}

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_rcu(&c->list, &h->list);
	switch (c->type) {
	case ACL_LINK:
		h->acl_num++;
		break;
	case AMP_LINK:
		h->amp_num++;
		break;
	case LE_LINK:
		h->le_num++;
		if (c->role == HCI_ROLE_SLAVE)
			h->le_num_peripheral++;
		break;
	case SCO_LINK:
	case ESCO_LINK:
		h->sco_num++;
		break;
	case ISO_LINK:
		h->iso_num++;
		break;
	}
}

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_rcu(&c->list);
	synchronize_rcu();

	switch (c->type) {
	case ACL_LINK:
		h->acl_num--;
		break;
	case AMP_LINK:
		h->amp_num--;
		break;
	case LE_LINK:
		h->le_num--;
		if (c->role == HCI_ROLE_SLAVE)
			h->le_num_peripheral--;
		break;
	case SCO_LINK:
	case ESCO_LINK:
		h->sco_num--;
		break;
	case ISO_LINK:
		h->iso_num--;
		break;
	}
}

static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	switch (type) {
	case ACL_LINK:
		return h->acl_num;
	case AMP_LINK:
		return h->amp_num;
	case LE_LINK:
		return h->le_num;
	case SCO_LINK:
	case ESCO_LINK:
		return h->sco_num;
	case ISO_LINK:
		return h->iso_num;
	default:
		return 0;
	}
}

static inline unsigned int hci_conn_count(struct hci_dev *hdev)
{
	struct hci_conn_hash *c = &hdev->conn_hash;

	return c->acl_num + c->amp_num + c->sco_num + c->le_num + c->iso_num;
}

static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn *c;
	__u8 type = INVALID_LINK;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->handle == handle) {
			type = c->type;
			break;
		}
	}

	rcu_read_unlock();

	return type;
}

static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
							bdaddr_t *ba,
							__u8 big, __u8 bis)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
			continue;

		if (c->iso_qos.big == big && c->iso_qos.bis == bis) {
			rcu_read_unlock();
			return c;
		}
	}
	rcu_read_unlock();

	return NULL;
}

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 hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->handle == handle) {
			rcu_read_unlock();
			return c;
		}
	}
	rcu_read_unlock();

	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 hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type == type && !bacmp(&c->dst, ba)) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

static inline struct hci_conn *hci_conn_hash_lookup_role(struct hci_dev *hdev,
							 __u8 type, __u8 role,
							 bdaddr_t *ba)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type == type && c->role == role && !bacmp(&c->dst, ba)) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
						       bdaddr_t *ba,
						       __u8 ba_type)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type != LE_LINK)
		       continue;

		if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
							bdaddr_t *ba,
							__u8 ba_type)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type != ISO_LINK)
			continue;

		if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
							__u8 handle)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type != ISO_LINK)
			continue;

		if (handle == c->iso_qos.cig) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
							__u8 handle)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
			continue;

		if (handle == c->iso_qos.big) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	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 hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type == type && c->state == state) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
					    hci_conn_func_t func, __u8 type,
					    __u16 state, void *data)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	if (!func)
		return;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type == type && c->state == state)
			func(c, data);
	}

	rcu_read_unlock();
}

static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn  *c;

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type == LE_LINK && c->state == BT_CONNECT &&
		    !test_bit(HCI_CONN_SCANNING, &c->flags)) {
			rcu_read_unlock();
			return c;
		}
	}

	rcu_read_unlock();

	return NULL;
}

int hci_disconnect(struct hci_conn *conn, __u8 reason);
bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
void hci_sco_setup(struct hci_conn *conn, __u8 status);
bool hci_iso_setup_path(struct hci_conn *conn);
int hci_le_create_cis(struct hci_conn *conn);

struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
			      u8 role);
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_chan *hci_chan_create(struct hci_conn *conn);
void hci_chan_del(struct hci_chan *chan);
void hci_chan_list_flush(struct hci_conn *conn);
struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);

struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
				     u8 dst_type, u8 sec_level,
				     u16 conn_timeout,
				     enum conn_reasons conn_reason);
struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
				u8 dst_type, bool dst_resolved, u8 sec_level,
				u16 conn_timeout, u8 role);
struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
				 u8 sec_level, u8 auth_type,
				 enum conn_reasons conn_reason);
struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
				 __u16 setting, struct bt_codec *codec);
struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
			      __u8 dst_type, struct bt_iso_qos *qos);
struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
				 __u8 dst_type, struct bt_iso_qos *qos);
struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
				 __u8 dst_type, struct bt_iso_qos *qos,
				 __u8 data_len, __u8 *data);
int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
		       __u8 sid);
int hci_le_big_create_sync(struct hci_dev *hdev, struct bt_iso_qos *qos,
			   __u16 sync_handle, __u8 num_bis, __u8 bis[]);
int hci_conn_check_link_mode(struct hci_conn *conn);
int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
		      bool initiator);
int hci_conn_switch_role(struct hci_conn *conn, __u8 role);

void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);

void hci_conn_failed(struct hci_conn *conn, u8 status);



static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
{
	get_device(&conn->dev);
	return conn;
}

static inline void hci_conn_put(struct hci_conn *conn)
{
	put_device(&conn->dev);
}

static inline void hci_conn_hold(struct hci_conn *conn)
{
	BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));

	atomic_inc(&conn->refcnt);
	cancel_delayed_work(&conn->disc_work);
}

static inline void hci_conn_drop(struct hci_conn *conn)
{
	BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));

	if (atomic_dec_and_test(&conn->refcnt)) {
		unsigned long timeo;

		switch (conn->type) {
		case ACL_LINK:
		case LE_LINK:
			cancel_delayed_work(&conn->idle_work);
			if (conn->state == BT_CONNECTED) {
				timeo = conn->disc_timeout;
				if (!conn->out)
					timeo *= 2;
			} else {
				timeo = 0;
			}
			break;

		case AMP_LINK:
			timeo = conn->disc_timeout;
			break;

		default:
			timeo = 0;
			break;
		}

		cancel_delayed_work(&conn->disc_work);
		queue_delayed_work(conn->hdev->workqueue,
				   &conn->disc_work, timeo);
	}
}


static inline void hci_dev_put(struct hci_dev *d)
{
	BT_DBG("%s orig refcnt %d", d->name,
	       kref_read(&d->dev.kobj.kref));

	put_device(&d->dev);
}

static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
{
	BT_DBG("%s orig refcnt %d", d->name,
	       kref_read(&d->dev.kobj.kref));

	get_device(&d->dev);
	return d;
}

#define hci_dev_lock(d)		mutex_lock(&d->lock)
#define hci_dev_unlock(d)	mutex_unlock(&d->lock)

#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
#define to_hci_conn(c) container_of(c, struct hci_conn, dev)

static inline void *hci_get_drvdata(struct hci_dev *hdev)
{
	return dev_get_drvdata(&hdev->dev);
}

static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
{
	dev_set_drvdata(&hdev->dev, data);
}

static inline void *hci_get_priv(struct hci_dev *hdev)
{
	return (char *)hdev + sizeof(*hdev);
}

struct hci_dev *hci_dev_get(int index);
struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);

struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);

static inline struct hci_dev *hci_alloc_dev(void)
{
	return hci_alloc_dev_priv(0);
}

void hci_free_dev(struct hci_dev *hdev);
int hci_register_dev(struct hci_dev *hdev);
void hci_unregister_dev(struct hci_dev *hdev);
void hci_release_dev(struct hci_dev *hdev);
int hci_register_suspend_notifier(struct hci_dev *hdev);
int hci_unregister_suspend_notifier(struct hci_dev *hdev);
int hci_suspend_dev(struct hci_dev *hdev);
int hci_resume_dev(struct hci_dev *hdev);
int hci_reset_dev(struct hci_dev *hdev);
int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
__printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
__printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);

static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
{
#if IS_ENABLED(CONFIG_BT_MSFTEXT)
	hdev->msft_opcode = opcode;
#endif
}

static inline void hci_set_aosp_capable(struct hci_dev *hdev)
{
#if IS_ENABLED(CONFIG_BT_AOSPEXT)
	hdev->aosp_capable = true;
#endif
}

int hci_dev_open(__u16 dev);
int hci_dev_close(__u16 dev);
int hci_dev_do_close(struct hci_dev *hdev);
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);

struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
					   bdaddr_t *bdaddr, u8 type);
struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
				    struct list_head *list, bdaddr_t *bdaddr,
				    u8 type);
struct bdaddr_list_with_flags *
hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
				  u8 type);
int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
				 u8 type, u8 *peer_irk, u8 *local_irk);
int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
				   u8 type, u32 flags);
int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
				 u8 type);
int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
				   u8 type);
void hci_bdaddr_list_clear(struct list_head *list);

struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
					       bdaddr_t *addr, u8 addr_type);
struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
					    bdaddr_t *addr, u8 addr_type);
void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
void hci_conn_params_clear_disabled(struct hci_dev *hdev);
void hci_conn_params_free(struct hci_conn_params *param);

void hci_pend_le_list_del_init(struct hci_conn_params *param);
void hci_pend_le_list_add(struct hci_conn_params *param,
			  struct list_head *list);
struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
						  bdaddr_t *addr,
						  u8 addr_type);

void hci_uuids_clear(struct hci_dev *hdev);

void hci_link_keys_clear(struct hci_dev *hdev);
struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
				  bdaddr_t *bdaddr, u8 *val, u8 type,
				  u8 pin_len, bool *persistent);
struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 addr_type, u8 type, u8 authenticated,
			    u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
			     u8 addr_type, u8 role);
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
void hci_smp_ltks_clear(struct hci_dev *hdev);
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);

struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
				     u8 addr_type);
struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 addr_type, u8 val[16], bdaddr_t *rpa);
void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
void hci_blocked_keys_clear(struct hci_dev *hdev);
void hci_smp_irks_clear(struct hci_dev *hdev);

bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);

void hci_remote_oob_data_clear(struct hci_dev *hdev);
struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
					  bdaddr_t *bdaddr, u8 bdaddr_type);
int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 bdaddr_type, u8 *hash192, u8 *rand192,
			    u8 *hash256, u8 *rand256);
int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
			       u8 bdaddr_type);

void hci_adv_instances_clear(struct hci_dev *hdev);
struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
				      u32 flags, u16 adv_data_len, u8 *adv_data,
				      u16 scan_rsp_len, u8 *scan_rsp_data,
				      u16 timeout, u16 duration, s8 tx_power,
				      u32 min_interval, u32 max_interval,
				      u8 mesh_handle);
struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
				      u32 flags, u8 data_len, u8 *data,
				      u32 min_interval, u32 max_interval);
int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
			 u16 adv_data_len, u8 *adv_data,
			 u16 scan_rsp_len, u8 *scan_rsp_data);
int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);

void hci_adv_monitors_clear(struct hci_dev *hdev);
void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
int hci_remove_all_adv_monitor(struct hci_dev *hdev);
bool hci_is_adv_monitoring(struct hci_dev *hdev);
int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);

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

void hci_init_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)->dev.parent = (pdev))


#define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
#define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
#define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
#define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
#define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
#define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
#define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
#define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
#define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
#define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
#define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
#define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
#define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
#define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
#define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
#define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
#define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
#define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
#define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
#define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
#define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)


#define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
#define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
#define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
#define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
#define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)


#define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
#define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
#define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))

#define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
				!hci_dev_test_flag(dev, HCI_AUTO_OFF))
#define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
				hci_dev_test_flag(dev, HCI_SC_ENABLED))
#define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
				!hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
#define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
				!adv->rpa_expired)

#define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
		      ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))

#define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
		      ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))

#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
			 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))

#define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)


#define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
			     hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))

#define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
				   (hdev->commands[39] & 0x04))


#define enhanced_sync_conn_capable(dev) \
	(((dev)->commands[29] & 0x08) && \
	 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))


#define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
			   ((dev)->commands[37] & 0x40) && \
			   !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))


#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)


#define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))


#define max_adv_len(dev) \
	(ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)


#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
					 ext_adv_capable(dev))


#define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))


#define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
#define cis_capable(dev) \
	(cis_central_capable(dev) || cis_peripheral_capable(dev))
#define cis_central_capable(dev) \
	((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
#define cis_peripheral_capable(dev) \
	((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
#define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)

#define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
	(!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))


#define HCI_PROTO_DEFER             0x01

static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
					__u8 type, __u8 *flags)
{
	switch (type) {
	case ACL_LINK:
		return l2cap_connect_ind(hdev, bdaddr);

	case SCO_LINK:
	case ESCO_LINK:
		return sco_connect_ind(hdev, bdaddr, flags);

	case ISO_LINK:
		return iso_connect_ind(hdev, bdaddr, flags);

	default:
		BT_ERR("unknown link type %d", type);
		return -EINVAL;
	}
}

static inline int hci_proto_disconn_ind(struct hci_conn *conn)
{
	if (conn->type != ACL_LINK && conn->type != LE_LINK)
		return HCI_ERROR_REMOTE_USER_TERM;

	return l2cap_disconn_ind(conn);
}


struct hci_cb {
	struct list_head list;

	char *name;

	void (*connect_cfm)	(struct hci_conn *conn, __u8 status);
	void (*disconn_cfm)	(struct hci_conn *conn, __u8 status);
	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_connect_cfm(struct hci_conn *conn, __u8 status)
{
	struct hci_cb *cb;

	mutex_lock(&hci_cb_list_lock);
	list_for_each_entry(cb, &hci_cb_list, list) {
		if (cb->connect_cfm)
			cb->connect_cfm(conn, status);
	}
	mutex_unlock(&hci_cb_list_lock);

	if (conn->connect_cfm_cb)
		conn->connect_cfm_cb(conn, status);
}

static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
{
	struct hci_cb *cb;

	mutex_lock(&hci_cb_list_lock);
	list_for_each_entry(cb, &hci_cb_list, list) {
		if (cb->disconn_cfm)
			cb->disconn_cfm(conn, reason);
	}
	mutex_unlock(&hci_cb_list_lock);

	if (conn->disconn_cfm_cb)
		conn->disconn_cfm_cb(conn, reason);
}

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

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

	encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;

	mutex_lock(&hci_cb_list_lock);
	list_for_each_entry(cb, &hci_cb_list, list) {
		if (cb->security_cfm)
			cb->security_cfm(conn, status, encrypt);
	}
	mutex_unlock(&hci_cb_list_lock);

	if (conn->security_cfm_cb)
		conn->security_cfm_cb(conn, status);
}

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

	if (conn->state == BT_CONFIG) {
		if (!status)
			conn->state = BT_CONNECTED;

		hci_connect_cfm(conn, status);
		hci_conn_drop(conn);
		return;
	}

	if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
		encrypt = 0x00;
	else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
		encrypt = 0x02;
	else
		encrypt = 0x01;

	if (!status) {
		if (conn->sec_level == BT_SECURITY_SDP)
			conn->sec_level = BT_SECURITY_LOW;

		if (conn->pending_sec_level > conn->sec_level)
			conn->sec_level = conn->pending_sec_level;
	}

	mutex_lock(&hci_cb_list_lock);
	list_for_each_entry(cb, &hci_cb_list, list) {
		if (cb->security_cfm)
			cb->security_cfm(conn, status, encrypt);
	}
	mutex_unlock(&hci_cb_list_lock);

	if (conn->security_cfm_cb)
		conn->security_cfm_cb(conn, status);
}

static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
{
	struct hci_cb *cb;

	mutex_lock(&hci_cb_list_lock);
	list_for_each_entry(cb, &hci_cb_list, list) {
		if (cb->key_change_cfm)
			cb->key_change_cfm(conn, status);
	}
	mutex_unlock(&hci_cb_list_lock);
}

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

	mutex_lock(&hci_cb_list_lock);
	list_for_each_entry(cb, &hci_cb_list, list) {
		if (cb->role_switch_cfm)
			cb->role_switch_cfm(conn, status, role);
	}
	mutex_unlock(&hci_cb_list_lock);
}

static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
{
	if (addr_type != ADDR_LE_DEV_RANDOM)
		return false;

	if ((bdaddr->b[5] & 0xc0) == 0x40)
	       return true;

	return false;
}

static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
{
	if (addr_type == ADDR_LE_DEV_PUBLIC)
		return true;

	
	if ((addr->b[5] & 0xc0) == 0xc0)
		return true;

	return false;
}

static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
					  bdaddr_t *bdaddr, u8 addr_type)
{
	if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
		return NULL;

	return hci_find_irk_by_rpa(hdev, bdaddr);
}

static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
					u16 to_multiplier)
{
	u16 max_latency;

	if (min > max) {
		BT_WARN("min %d > max %d", min, max);
		return -EINVAL;
	}

	if (min < 6) {
		BT_WARN("min %d < 6", min);
		return -EINVAL;
	}

	if (max > 3200) {
		BT_WARN("max %d > 3200", max);
		return -EINVAL;
	}

	if (to_multiplier < 10) {
		BT_WARN("to_multiplier %d < 10", to_multiplier);
		return -EINVAL;
	}

	if (to_multiplier > 3200) {
		BT_WARN("to_multiplier %d > 3200", to_multiplier);
		return -EINVAL;
	}

	if (max >= to_multiplier * 8) {
		BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
		return -EINVAL;
	}

	max_latency = (to_multiplier * 4 / max) - 1;
	if (latency > 499) {
		BT_WARN("latency %d > 499", latency);
		return -EINVAL;
	}

	if (latency > max_latency) {
		BT_WARN("latency %d > max_latency %d", latency, max_latency);
		return -EINVAL;
	}

	return 0;
}

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

int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
		   const void *param);

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

void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);

u32 hci_conn_get_phy(struct hci_conn *conn);


void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
			 int flag, struct sock *skip_sk);
void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
				 void *data, u16 data_len, ktime_t tstamp,
				 int flag, struct sock *skip_sk);

void hci_sock_dev_event(struct hci_dev *hdev, int event);

#define HCI_MGMT_VAR_LEN	BIT(0)
#define HCI_MGMT_NO_HDEV	BIT(1)
#define HCI_MGMT_UNTRUSTED	BIT(2)
#define HCI_MGMT_UNCONFIGURED	BIT(3)
#define HCI_MGMT_HDEV_OPTIONAL	BIT(4)

struct hci_mgmt_handler {
	int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
		     u16 data_len);
	size_t data_len;
	unsigned long flags;
};

struct hci_mgmt_chan {
	struct list_head list;
	unsigned short channel;
	size_t handler_count;
	const struct hci_mgmt_handler *handlers;
	void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
};

int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);


#define DISCOV_TYPE_BREDR		(BIT(BDADDR_BREDR))
#define DISCOV_TYPE_LE			(BIT(BDADDR_LE_PUBLIC) | \
					 BIT(BDADDR_LE_RANDOM))
#define DISCOV_TYPE_INTERLEAVED		(BIT(BDADDR_BREDR) | \
					 BIT(BDADDR_LE_PUBLIC) | \
					 BIT(BDADDR_LE_RANDOM))


#define DISCOV_LE_SCAN_WIN		0x12
#define DISCOV_LE_SCAN_INT		0x12
#define DISCOV_LE_TIMEOUT		10240	
#define DISCOV_INTERLEAVED_TIMEOUT	5120	
#define DISCOV_INTERLEAVED_INQUIRY_LEN	0x04
#define DISCOV_BREDR_INQUIRY_LEN	0x08
#define DISCOV_LE_RESTART_DELAY		msecs_to_jiffies(200)	
#define DISCOV_LE_FAST_ADV_INT_MIN	0x00A0	
#define DISCOV_LE_FAST_ADV_INT_MAX	0x00F0	
#define DISCOV_LE_PER_ADV_INT_MIN	0x00A0	
#define DISCOV_LE_PER_ADV_INT_MAX	0x00A0	
#define DISCOV_LE_ADV_MESH_MIN		0x00A0  
#define DISCOV_LE_ADV_MESH_MAX		0x00A0  
#define INTERVAL_TO_MS(x)		(((x) * 10) / 0x10)

#define NAME_RESOLVE_DURATION		msecs_to_jiffies(10240)	

void mgmt_fill_version_info(void *ver);
int mgmt_new_settings(struct hci_dev *hdev);
void mgmt_index_added(struct hci_dev *hdev);
void mgmt_index_removed(struct hci_dev *hdev);
void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
void mgmt_power_on(struct hci_dev *hdev, int err);
void __mgmt_power_off(struct hci_dev *hdev);
void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
		       bool persistent);
void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
			   u8 *name, u8 name_len);
void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
			      u8 link_type, u8 addr_type, u8 reason,
			      bool mgmt_connected);
void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 link_type, u8 addr_type, u8 status);
void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn,
			 u8 status);
void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
				  u8 status);
void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
				      u8 status);
int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
			      u8 link_type, u8 addr_type, u32 value,
			      u8 confirm_hint);
int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
				     u8 link_type, u8 addr_type, u8 status);
int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
					 u8 link_type, u8 addr_type, u8 status);
int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
			      u8 link_type, u8 addr_type);
int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
				     u8 link_type, u8 addr_type, u8 status);
int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
					 u8 link_type, u8 addr_type, u8 status);
int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
			     u8 link_type, u8 addr_type, u32 passkey,
			     u8 entered);
void mgmt_auth_failed(struct hci_conn *conn, u8 status);
void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
				    u8 status);
void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
		       u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
		       u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
		       u64 instant);
void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
		      u8 addr_type, s8 rssi, u8 *name, u8 name_len);
void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
void mgmt_suspending(struct hci_dev *hdev, u8 state);
void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
		   u8 addr_type);
bool mgmt_powering_down(struct hci_dev *hdev);
void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
		   bool persistent);
void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
			 u8 bdaddr_type, u8 store_hint, u16 min_interval,
			 u16 max_interval, u16 latency, u16 timeout);
void mgmt_smp_complete(struct hci_conn *conn, bool complete);
bool mgmt_get_connectable(struct hci_dev *hdev);
u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
			    u8 instance);
void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
			      u8 instance);
int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
				  bdaddr_t *bdaddr, u8 addr_type);

int hci_abort_conn(struct hci_conn *conn, u8 reason);
u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
		      u16 to_multiplier);
void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
		      __u8 ltk[16], __u8 key_size);

void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
			       u8 *bdaddr_type);

#define SCO_AIRMODE_MASK       0x0003
#define SCO_AIRMODE_CVSD       0x0000
#define SCO_AIRMODE_TRANSP     0x0003

#define LOCAL_CODEC_ACL_MASK	BIT(0)
#define LOCAL_CODEC_SCO_MASK	BIT(1)

#define TRANSPORT_TYPE_MAX	0x04

#endif 
