path: root/include/net/bluetooth/hci_core.h

/*
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.

   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 <linux/leds.h>
#include <net/bluetooth/hci.h>
#include <net/bluetooth/hci_sock.h>

/* HCI priority */
#define HCI_PRIO_MAX	7

/* 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 list_head	all;		/* inq_cache.all */
	struct list_head	list;		/* unknown or resolve */
	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;	/* All devices found during inquiry */
	struct list_head	unknown;	/* Name state not known */
	struct list_head	resolve;	/* Name needs to be resolved */
	__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_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;
};

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

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

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

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 pending;
	__u8	instance;
	__u32	flags;
	__u16	timeout;
	__u16	remaining_time;
	__u16	duration;
	__u16	adv_data_len;
	__u8	adv_data[HCI_MAX_AD_LENGTH];
	__u16	scan_rsp_len;
	__u8	scan_rsp_data[HCI_MAX_AD_LENGTH];
};

#define HCI_MAX_ADV_INSTANCES		5
#define HCI_DEFAULT_ADV_DURATION	2

#define HCI_MAX_SHORT_NAME_LENGTH	10

/* Default LE RPA expiry time, 15 minutes */
#define HCI_DEFAULT_RPA_TIMEOUT		(15 * 60)

/* Default min/max age of connection information (1s/3s) */
#define DEFAULT_CONN_INFO_MIN_AGE	1000
#define DEFAULT_CONN_INFO_MAX_AGE	3000

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 mutex	lock;

	char		name[8];
	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_white_list_size;
	__u8		le_states[8];
	__u8		commands[64];
	__u8		hci_ver;
	__u16		hci_rev;
	__u8		lmp_ver;
	__u16		manufacturer;
	__u16		lmp_subver;
	__u16		voice_setting;
	__u8		num_iac;
	__u8		stored_max_keys;
	__u8		stored_num_keys;
	__u8		io_capability;
	__s8		inq_tx_power;
	__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_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;
	__u16		discov_interleaved_timeout;
	__u16		conn_info_min_age;
	__u16		conn_info_max_age;
	__u8		ssp_debug_mode;
	__u8		hw_error_code;
	__u32		clock;

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

	__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	acl_mtu;
	unsigned int	sco_mtu;
	unsigned int	le_mtu;
	unsigned int	acl_pkts;
	unsigned int	sco_pkts;
	unsigned int	le_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;

	struct workqueue_struct	*workqueue;
	struct workqueue_struct	*req_workqueue;

	struct work_struct	power_on;
	struct delayed_work	power_off;
	struct work_struct	error_reset;

	__u16			discov_timeout;
	struct delayed_work	discov_off;

	struct delayed_work	service_cache;