xref: /src/sys/netbt/hci.h

/*	$NetBSD: hci.h,v 1.10.8.2 2008/01/09 01:57:21 matt Exp $	*/

/*-
 * Copyright (c) 2005 Iain Hibbert.
 * Copyright (c) 2006 Itronix Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of Itronix Inc. may not be used to endorse
 *    or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
/*-
 * Copyright (c) 2001 Maksim Yevmenkin <m_evmenkin (at) yahoo.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $Id: hci.h,v 1.10.8.2 2008/01/09 01:57:21 matt Exp $
 * $FreeBSD: src/sys/netgraph/bluetooth/include/ng_hci.h,v 1.6 2005/01/07 01:45:43 imp Exp $
 */

/*
 * This file contains everything that applications need to know from
 * Host Controller Interface (HCI). Information taken from Bluetooth
 * Core Specifications (v1.1 and v2.0)
 *
 * This file can be included by both kernel and userland applications.
 *
 * NOTE: Here and after Bluetooth device is called a "unit". Bluetooth
 *       specification refers to both devices and units. They are the
 *       same thing (I think), so to be consistent word "unit" will be
 *       used.
 */

#ifndef _NETBT_HCI_H_
#define _NETBT_HCI_H_

#include <netbt/bluetooth.h>

/**************************************************************************
 **************************************************************************
 **                   Common defines and types (HCI)
 **************************************************************************
 **************************************************************************/

#define HCI_LAP_SIZE			3   /* unit LAP */
#define HCI_KEY_SIZE			16  /* link key */
#define HCI_PIN_SIZE			16  /* link PIN */
#define HCI_EVENT_MASK_SIZE		8   /* event mask */
#define HCI_CLASS_SIZE			3   /* unit class */
#define HCI_FEATURES_SIZE		8   /* LMP features */
#define HCI_UNIT_NAME_SIZE		248 /* unit name size */
#define HCI_DEVNAME_SIZE		16  /* same as dv_xname */
#define HCI_COMMANDS_SIZE		64  /* supported commands mask */

/* HCI specification */
#define HCI_SPEC_V10			0x00 /* v1.0 */
#define HCI_SPEC_V11			0x01 /* v1.1 */
#define HCI_SPEC_V12			0x02 /* v1.2 */
#define HCI_SPEC_V20			0x03 /* v2.0 */
/* 0x02 - 0xFF - reserved for future use */

/* LMP features (and page 0 of extended features) */
/* ------------------- byte 0 --------------------*/
#define HCI_LMP_3SLOT			0x01
#define HCI_LMP_5SLOT			0x02
#define HCI_LMP_ENCRYPTION		0x04
#define HCI_LMP_SLOT_OFFSET		0x08
#define HCI_LMP_TIMIACCURACY		0x10
#define HCI_LMP_ROLE_SWITCH		0x20
#define HCI_LMP_HOLD_MODE		0x40
#define HCI_LMP_SNIFF_MODE		0x80
/* ------------------- byte 1 --------------------*/
#define HCI_LMP_PARK_MODE		0x01
#define HCI_LMP_RSSI			0x02
#define HCI_LMP_CHANNEL_QUALITY		0x04
#define HCI_LMP_SCO_LINK		0x08
#define HCI_LMP_HV2_PKT			0x10
#define HCI_LMP_HV3_PKT			0x20
#define HCI_LMP_ULAW_LOG		0x40
#define HCI_LMP_ALAW_LOG		0x80
/* ------------------- byte 2 --------------------*/
#define HCI_LMP_CVSD			0x01
#define HCI_LMP_PAGISCHEME		0x02
#define HCI_LMP_POWER_CONTROL		0x04
#define HCI_LMP_TRANSPARENT_SCO		0x08
#define HCI_LMP_FLOW_CONTROL_LAG0	0x10
#define HCI_LMP_FLOW_CONTROL_LAG1	0x20
#define HCI_LMP_FLOW_CONTROL_LAG2	0x40
#define HCI_LMP_BC_ENCRYPTION		0x80
/* ------------------- byte 3 --------------------*/
/* reserved				0x01 */
#define HCI_LMP_EDR_ACL_2MBPS		0x02
#define HCI_LMP_EDR_ACL_3MBPS		0x04
#define HCI_LMP_ENHANCED_ISCAN		0x08
#define HCI_LMP_INTERLACED_ISCAN	0x10
#define HCI_LMP_INTERLACED_PSCAN	0x20
#define HCI_LMP_RSSI_INQUIRY		0x40
#define HCI_LMP_EV3_PKT			0x80
/* ------------------- byte 4 --------------------*/
#define HCI_LMP_EV4_PKT			0x01
#define HCI_LMP_EV5_PKT			0x02
/* reserved				0x04 */
#define HCI_LMP_AFH_CAPABLE_SLAVE	0x08
#define HCI_LMP_AFH_CLASS_SLAVE		0x10
/* reserved				0x20 */
/* reserved				0x40 */
#define HCI_LMP_3SLOT_EDR_ACL		0x80
/* ------------------- byte 5 --------------------*/
#define HCI_LMP_5SLOT_EDR_ACL		0x01
/* reserved				0x02 */
/* reserved				0x04 */
#define HCI_LMP_AFH_CAPABLE_MASTER	0x08
#define HCI_LMP_AFH_CLASS_MASTER	0x10
#define HCI_LMP_EDR_eSCO_2MBPS		0x20
#define HCI_LMP_EDR_eSCO_3MBPS		0x40
#define HCI_LMP_3SLOT_EDR_eSCO		0x80
/* ------------------- byte 6 --------------------*/
/* reserved					  */
/* ------------------- byte 7 --------------------*/
#define HCI_LMP_EXTENDED_FEATURES	0x80

/* Link types */
#define HCI_LINK_SCO			0x00 /* Voice */
#define HCI_LINK_ACL			0x01 /* Data */
#define HCI_LINK_eSCO			0x02 /* eSCO */
/* 0x03 - 0xFF - reserved for future use */

/*
 * ACL/SCO packet type bits are set to enable the
 * packet type, except for 2MBPS and 3MBPS when they
 * are unset to enable the packet type.
 */
/* ACL Packet types for "Create Connection" */
#define HCI_PKT_2MBPS_DH1	0x0002
#define HCI_PKT_3MBPS_DH1	0x0004
#define HCI_PKT_DM1		0x0008
#define HCI_PKT_DH1		0x0010
#define HCI_PKT_2MBPS_DH3	0x0100
#define HCI_PKT_3MBPS_DH3	0x0200
#define HCI_PKT_DM3		0x0400
#define HCI_PKT_DH3		0x0800
#define HCI_PKT_2MBPS_DH5	0x1000
#define HCI_PKT_3MBPS_DH5	0x2000
#define HCI_PKT_DM5		0x4000
#define HCI_PKT_DH5		0x8000

/* SCO Packet types for "Setup Synchronous Connection" */
#define HCI_PKT_HV1		0x0001
#define HCI_PKT_HV2		0x0002
#define HCI_PKT_HV3		0x0004
#define HCI_PKT_EV3		0x0008
#define HCI_PKT_EV4		0x0010
#define HCI_PKT_EV5		0x0020
#define HCI_PKT_2MBPS_EV3	0x0040
#define HCI_PKT_3MBPS_EV3	0x0080
#define HCI_PKT_2MBPS_EV5	0x0100
#define HCI_PKT_3MBPS_EV5	0x0200

/*
 * Connection modes/Unit modes
 *
 * This is confusing. It means that one of the units change its mode
 * for the specific connection. For example one connection was put on
 * hold (but i could be wrong :)
 */

/* Page scan modes (are deprecated) */
#define HCI_MANDATORY_PAGE_SCAN_MODE		0x00
#define HCI_OPTIONAL_PAGE_SCAN_MODE1		0x01
#define HCI_OPTIONAL_PAGE_SCAN_MODE2		0x02
#define HCI_OPTIONAL_PAGE_SCAN_MODE3		0x03
/* 0x04 - 0xFF - reserved for future use */

/* Page scan repetition modes */
#define HCI_SCAN_REP_MODE0			0x00
#define HCI_SCAN_REP_MODE1			0x01
#define HCI_SCAN_REP_MODE2			0x02
/* 0x03 - 0xFF - reserved for future use */

/* Page scan period modes */
#define HCI_PAGE_SCAN_PERIOD_MODE0		0x00
#define HCI_PAGE_SCAN_PERIOD_MODE1		0x01
#define HCI_PAGE_SCAN_PERIOD_MODE2		0x02
/* 0x03 - 0xFF - reserved for future use */

/* Scan enable */
#define HCI_NO_SCAN_ENABLE			0x00
#define HCI_INQUIRY_SCAN_ENABLE			0x01
#define HCI_PAGE_SCAN_ENABLE			0x02
/* 0x04 - 0xFF - reserved for future use */

/* Hold mode activities */
#define HCI_HOLD_MODE_NO_CHANGE			0x00
#define HCI_HOLD_MODE_SUSPEND_PAGE_SCAN		0x01
#define HCI_HOLD_MODE_SUSPEND_INQUIRY_SCAN	0x02
#define HCI_HOLD_MODE_SUSPEND_PERIOD_INQUIRY	0x04
/* 0x08 - 0x80 - reserved for future use */

/* Connection roles */
#define HCI_ROLE_MASTER				0x00
#define HCI_ROLE_SLAVE				0x01
/* 0x02 - 0xFF - reserved for future use */

/* Key flags */
#define HCI_USE_SEMI_PERMANENT_LINK_KEYS	0x00
#define HCI_USE_TEMPORARY_LINK_KEY		0x01
/* 0x02 - 0xFF - reserved for future use */

/* Pin types */
#define HCI_PIN_TYPE_VARIABLE			0x00
#define HCI_PIN_TYPE_FIXED			0x01

/* Link key types */
#define HCI_LINK_KEY_TYPE_COMBINATION_KEY	0x00
#define HCI_LINK_KEY_TYPE_LOCAL_UNIT_KEY	0x01
#define HCI_LINK_KEY_TYPE_REMOTE_UNIT_KEY	0x02
/* 0x03 - 0xFF - reserved for future use */

/* Encryption modes */
#define HCI_ENCRYPTION_MODE_NONE		0x00
#define HCI_ENCRYPTION_MODE_P2P			0x01
#define HCI_ENCRYPTION_MODE_ALL			0x02
/* 0x03 - 0xFF - reserved for future use */

/* Quality of service types */
#define HCI_SERVICE_TYPE_NO_TRAFFIC		0x00
#define HCI_SERVICE_TYPE_BEST_EFFORT		0x01
#define HCI_SERVICE_TYPE_GUARANTEED		0x02
/* 0x03 - 0xFF - reserved for future use */

/* Link policy settings */
#define HCI_LINK_POLICY_DISABLE_ALL_LM_MODES	0x0000
#define HCI_LINK_POLICY_ENABLE_ROLE_SWITCH	0x0001 /* Master/Slave switch */
#define HCI_LINK_POLICY_ENABLE_HOLD_MODE	0x0002
#define HCI_LINK_POLICY_ENABLE_SNIFF_MODE	0x0004
#define HCI_LINK_POLICY_ENABLE_PARK_MODE	0x0008
/* 0x0010 - 0x8000 - reserved for future use */

/* Event masks */
#define HCI_EVMSK_ALL				0x00000000ffffffff
#define HCI_EVMSK_NONE				0x0000000000000000
#define HCI_EVMSK_INQUIRY_COMPL			0x0000000000000001
#define HCI_EVMSK_INQUIRY_RESULT		0x0000000000000002
#define HCI_EVMSK_CON_COMPL			0x0000000000000004
#define HCI_EVMSK_CON_REQ			0x0000000000000008
#define HCI_EVMSK_DISCON_COMPL			0x0000000000000010
#define HCI_EVMSK_AUTH_COMPL			0x0000000000000020
#define HCI_EVMSK_REMOTE_NAME_REQ_COMPL		0x0000000000000040
#define HCI_EVMSK_ENCRYPTION_CHANGE		0x0000000000000080
#define HCI_EVMSK_CHANGE_CON_LINK_KEY_COMPL	0x0000000000000100
#define HCI_EVMSK_MASTER_LINK_KEY_COMPL		0x0000000000000200
#define HCI_EVMSK_READ_REMOTE_FEATURES_COMPL	0x0000000000000400
#define HCI_EVMSK_READ_REMOTE_VER_INFO_COMPL	0x0000000000000800
#define HCI_EVMSK_QOS_SETUP_COMPL		0x0000000000001000
#define HCI_EVMSK_COMMAND_COMPL			0x0000000000002000
#define HCI_EVMSK_COMMAND_STATUS		0x0000000000004000
#define HCI_EVMSK_HARDWARE_ERROR		0x0000000000008000
#define HCI_EVMSK_FLUSH_OCCUR			0x0000000000010000
#define HCI_EVMSK_ROLE_CHANGE			0x0000000000020000
#define HCI_EVMSK_NUM_COMPL_PKTS		0x0000000000040000
#define HCI_EVMSK_MODE_CHANGE			0x0000000000080000
#define HCI_EVMSK_RETURN_LINK_KEYS		0x0000000000100000
#define HCI_EVMSK_PIN_CODE_REQ			0x0000000000200000
#define HCI_EVMSK_LINK_KEY_REQ			0x0000000000400000
#define HCI_EVMSK_LINK_KEY_NOTIFICATION		0x0000000000800000
#define HCI_EVMSK_LOOPBACK_COMMAND		0x0000000001000000
#define HCI_EVMSK_DATA_BUFFER_OVERFLOW		0x0000000002000000
#define HCI_EVMSK_MAX_SLOT_CHANGE		0x0000000004000000
#define HCI_EVMSK_READ_CLOCK_OFFSET_COMLETE	0x0000000008000000
#define HCI_EVMSK_CON_PKT_TYPE_CHANGED		0x0000000010000000
#define HCI_EVMSK_QOS_VIOLATION			0x0000000020000000
#define HCI_EVMSK_PAGE_SCAN_MODE_CHANGE		0x0000000040000000
#define HCI_EVMSK_PAGE_SCAN_REP_MODE_CHANGE	0x0000000080000000
/* 0x0000000100000000 - 0x8000000000000000 - reserved for future use */

/* Filter types */
#define HCI_FILTER_TYPE_NONE			0x00
#define HCI_FILTER_TYPE_INQUIRY_RESULT		0x01
#define HCI_FILTER_TYPE_CON_SETUP		0x02
/* 0x03 - 0xFF - reserved for future use */

/* Filter condition types for HCI_FILTER_TYPE_INQUIRY_RESULT */
#define HCI_FILTER_COND_INQUIRY_NEW_UNIT	0x00
#define HCI_FILTER_COND_INQUIRY_UNIT_CLASS	0x01
#define HCI_FILTER_COND_INQUIRY_BDADDR		0x02
/* 0x03 - 0xFF - reserved for future use */

/* Filter condition types for HCI_FILTER_TYPE_CON_SETUP */
#define HCI_FILTER_COND_CON_ANY_UNIT		0x00
#define HCI_FILTER_COND_CON_UNIT_CLASS		0x01
#define HCI_FILTER_COND_CON_BDADDR		0x02
/* 0x03 - 0xFF - reserved for future use */

/* Xmit level types */
#define HCI_XMIT_LEVEL_CURRENT			0x00
#define HCI_XMIT_LEVEL_MAXIMUM			0x01
/* 0x02 - 0xFF - reserved for future use */

/* Host Controller to Host flow control */
#define HCI_HC2H_FLOW_CONTROL_NONE		0x00
#define HCI_HC2H_FLOW_CONTROL_ACL		0x01
#define HCI_HC2H_FLOW_CONTROL_SCO		0x02
#define HCI_HC2H_FLOW_CONTROL_BOTH		0x03
/* 0x04 - 0xFF - reserved future use */

/* Loopback modes */
#define HCI_LOOPBACK_NONE			0x00
#define HCI_LOOPBACK_LOCAL			0x01
#define HCI_LOOPBACK_REMOTE			0x02
/* 0x03 - 0xFF - reserved future use */

/**************************************************************************
 **************************************************************************
 **                 Link level defines, headers and types
 **************************************************************************
 **************************************************************************/

/*
 * Macro(s) to combine OpCode and extract OGF (OpCode Group Field)
 * and OCF (OpCode Command Field) from OpCode.
 */

#define HCI_OPCODE(gf,cf)		((((gf) & 0x3f) << 10) | ((cf) & 0x3ff))
#define HCI_OCF(op)			((op) & 0x3ff)
#define HCI_OGF(op)			(((op) >> 10) & 0x3f)

/*
 * Macro(s) to extract/combine connection handle, BC (Broadcast) and
 * PB (Packet boundary) flags.
 */

#define HCI_CON_HANDLE(h)		((h) & 0x0fff)
#define HCI_PB_FLAG(h)			(((h) & 0x3000) >> 12)
#define HCI_BC_FLAG(h)			(((h) & 0xc000) >> 14)
#define HCI_MK_CON_HANDLE(h, pb, bc) \
	(((h) & 0x0fff) | (((pb) & 3) << 12) | (((bc) & 3) << 14))

/* PB flag values */
					/* 00 - reserved for future use */
#define	HCI_PACKET_FRAGMENT		0x1
#define	HCI_PACKET_START		0x2
					/* 11 - reserved for future use */

/* BC flag values */
#define HCI_POINT2POINT			0x0 /* only Host controller to Host */
#define HCI_BROADCAST_ACTIVE		0x1 /* both directions */
#define HCI_BROADCAST_PICONET		0x2 /* both directions */
					/* 11 - reserved for future use */

/* HCI command packet header */
typedef struct {
	uint8_t		type;	/* MUST be 0x01 */
	uint16_t	opcode; /* OpCode */
	uint8_t		length; /* parameter(s) length in bytes */
} __attribute__ ((__packed__)) hci_cmd_hdr_t;

#define HCI_CMD_PKT			0x01
#define HCI_CMD_PKT_SIZE		(sizeof(hci_cmd_hdr_t) + 0xff)

/* ACL data packet header */
typedef struct {
	uint8_t		type;	     /* MUST be 0x02 */
	uint16_t	con_handle;  /* connection handle + PB + BC flags */
	uint16_t	length;      /* payload length in bytes */
} __attribute__ ((__packed__)) hci_acldata_hdr_t;

#define HCI_ACL_DATA_PKT		0x02
#define HCI_ACL_PKT_SIZE		(sizeof(hci_acldata_hdr_t) + 0xffff)

/* SCO data packet header */
typedef struct {
	uint8_t		type;	    /* MUST be 0x03 */
	uint16_t	con_handle; /* connection handle + reserved bits */
	uint8_t		length;     /* payload length in bytes */
} __attribute__ ((__packed__)) hci_scodata_hdr_t;

#define HCI_SCO_DATA_PKT		0x03
#define HCI_SCO_PKT_SIZE		(sizeof(hci_scodata_hdr_t) + 0xff)

/* HCI event packet header */
typedef struct {
	uint8_t		type;	/* MUST be 0x04 */
	uint8_t		event;  /* event */
	uint8_t		length; /* parameter(s) length in bytes */
} __attribute__ ((__packed__)) hci_event_hdr_t;

#define HCI_EVENT_PKT			0x04
#define HCI_EVENT_PKT_SIZE		(sizeof(hci_event_hdr_t) + 0xff)

/* HCI status return parameter */
typedef struct {
	uint8_t		status; /* 0x00 - success */
} __attribute__ ((__packed__)) hci_status_rp;

/**************************************************************************
 **************************************************************************
 ** OGF 0x01	Link control commands and return parameters
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_LINK_CONTROL			0x01

#define HCI_OCF_INQUIRY					0x0001
#define HCI_CMD_INQUIRY					0x0401
typedef struct {
	uint8_t		lap[HCI_LAP_SIZE]; /* LAP */
	uint8_t		inquiry_length;    /* (N x 1.28) sec */
	uint8_t		num_responses;     /* Max. # of responses */
} __attribute__ ((__packed__)) hci_inquiry_cp;
/* No return parameter(s) */

#define HCI_OCF_INQUIRY_CANCEL				0x0002
#define HCI_CMD_INQUIRY_CANCEL				0x0402
/* No command parameter(s) */
typedef hci_status_rp	hci_inquiry_cancel_rp;

#define HCI_OCF_PERIODIC_INQUIRY			0x0003
#define HCI_CMD_PERIODIC_INQUIRY			0x0403
typedef struct {
	uint16_t	max_period_length; /* Max. and min. amount of time */
	uint16_t	min_period_length; /* between consecutive inquiries */
	uint8_t		lap[HCI_LAP_SIZE]; /* LAP */
	uint8_t		inquiry_length;    /* (inquiry_length * 1.28) sec */
	uint8_t		num_responses;     /* Max. # of responses */
} __attribute__ ((__packed__)) hci_periodic_inquiry_cp;

typedef hci_status_rp	hci_periodic_inquiry_rp;

#define HCI_OCF_EXIT_PERIODIC_INQUIRY			0x0004
#define HCI_CMD_EXIT_PERIODIC_INQUIRY			0x0404
/* No command parameter(s) */
typedef hci_status_rp	hci_exit_periodic_inquiry_rp;

#define HCI_OCF_CREATE_CON				0x0005
#define HCI_CMD_CREATE_CON				0x0405
typedef struct {
	bdaddr_t	bdaddr;             /* destination address */
	uint16_t	pkt_type;           /* packet type */
	uint8_t		page_scan_rep_mode; /* page scan repetition mode */
	uint8_t		page_scan_mode;     /* reserved - set to 0x00 */
	uint16_t	clock_offset;       /* clock offset */
	uint8_t		accept_role_switch; /* accept role switch? 0x00 == No */
} __attribute__ ((__packed__)) hci_create_con_cp;
/* No return parameter(s) */

#define HCI_OCF_DISCONNECT				0x0006
#define HCI_CMD_DISCONNECT				0x0406
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint8_t		reason;     /* reason to disconnect */
} __attribute__ ((__packed__)) hci_discon_cp;
/* No return parameter(s) */

/* Add SCO Connection is deprecated */
#define HCI_OCF_ADD_SCO_CON				0x0007
#define HCI_CMD_ADD_SCO_CON				0x0407
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint16_t	pkt_type;   /* packet type */
} __attribute__ ((__packed__)) hci_add_sco_con_cp;
/* No return parameter(s) */

#define HCI_OCF_CREATE_CON_CANCEL			0x0008
#define HCI_CMD_CREATE_CON_CANCEL			0x0408
typedef struct {
	bdaddr_t	bdaddr;		/* destination address */
} __attribute__ ((__packed__)) hci_create_con_cancel_cp;

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	bdaddr_t	bdaddr;		/* destination address */
} __attribute__ ((__packed__)) hci_create_con_cancel_rp;

#define HCI_OCF_ACCEPT_CON				0x0009
#define HCI_CMD_ACCEPT_CON				0x0409
typedef struct {
	bdaddr_t	bdaddr; /* address of unit to be connected */
	uint8_t		role;   /* connection role */
} __attribute__ ((__packed__)) hci_accept_con_cp;
/* No return parameter(s) */

#define HCI_OCF_REJECT_CON				0x000a
#define HCI_CMD_REJECT_CON				0x040A
typedef struct {
	bdaddr_t	bdaddr; /* remote address */
	uint8_t		reason; /* reason to reject */
} __attribute__ ((__packed__)) hci_reject_con_cp;
/* No return parameter(s) */

#define HCI_OCF_LINK_KEY_REP				0x000b
#define HCI_CMD_LINK_KEY_REP				0x040B
typedef struct {
	bdaddr_t	bdaddr;            /* remote address */
	uint8_t		key[HCI_KEY_SIZE]; /* key */
} __attribute__ ((__packed__)) hci_link_key_rep_cp;

typedef struct {
	uint8_t		status; /* 0x00 - success */
	bdaddr_t	bdaddr; /* unit address */
} __attribute__ ((__packed__)) hci_link_key_rep_rp;

#define HCI_OCF_LINK_KEY_NEG_REP			0x000c
#define HCI_CMD_LINK_KEY_NEG_REP			0x040C
typedef struct {
	bdaddr_t	bdaddr; /* remote address */
} __attribute__ ((__packed__)) hci_link_key_neg_rep_cp;

typedef struct {
	uint8_t		status; /* 0x00 - success */
	bdaddr_t	bdaddr; /* unit address */
} __attribute__ ((__packed__)) hci_link_key_neg_rep_rp;

#define HCI_OCF_PIN_CODE_REP				0x000d
#define HCI_CMD_PIN_CODE_REP				0x040D
typedef struct {
	bdaddr_t	bdaddr;               /* remote address */
	uint8_t		pin_size;             /* pin code length (in bytes) */
	uint8_t		pin[HCI_PIN_SIZE];    /* pin code */
} __attribute__ ((__packed__)) hci_pin_code_rep_cp;

typedef struct {
	uint8_t		status; /* 0x00 - success */
	bdaddr_t	bdaddr; /* unit address */
} __attribute__ ((__packed__)) hci_pin_code_rep_rp;

#define HCI_OCF_PIN_CODE_NEG_REP			0x000e
#define HCI_CMD_PIN_CODE_NEG_REP			0x040E
typedef struct {
	bdaddr_t	bdaddr; /* remote address */
} __attribute__ ((__packed__)) hci_pin_code_neg_rep_cp;

typedef struct {
	uint8_t		status; /* 0x00 - success */
	bdaddr_t	bdaddr; /* unit address */
} __attribute__ ((__packed__)) hci_pin_code_neg_rep_rp;

#define HCI_OCF_CHANGE_CON_PACKET_TYPE			0x000f
#define HCI_CMD_CHANGE_CON_PACKET_TYPE			0x040F
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint16_t	pkt_type;   /* packet type */
} __attribute__ ((__packed__)) hci_change_con_pkt_type_cp;
/* No return parameter(s) */

#define HCI_OCF_AUTH_REQ				0x0011
#define HCI_CMD_AUTH_REQ				0x0411
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_auth_req_cp;
/* No return parameter(s) */

#define HCI_OCF_SET_CON_ENCRYPTION			0x0013
#define HCI_CMD_SET_CON_ENCRYPTION			0x0413
typedef struct {
	uint16_t	con_handle;        /* connection handle */
	uint8_t		encryption_enable; /* 0x00 - disable, 0x01 - enable */
} __attribute__ ((__packed__)) hci_set_con_encryption_cp;
/* No return parameter(s) */

#define HCI_OCF_CHANGE_CON_LINK_KEY			0x0015
#define HCI_CMD_CHANGE_CON_LINK_KEY			0x0415
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_change_con_link_key_cp;
/* No return parameter(s) */

#define HCI_OCF_MASTER_LINK_KEY				0x0017
#define HCI_CMD_MASTER_LINK_KEY				0x0417
typedef struct {
	uint8_t		key_flag; /* key flag */
} __attribute__ ((__packed__)) hci_master_link_key_cp;
/* No return parameter(s) */

#define HCI_OCF_REMOTE_NAME_REQ				0x0019
#define HCI_CMD_REMOTE_NAME_REQ				0x0419
typedef struct {
	bdaddr_t	bdaddr;             /* remote address */
	uint8_t		page_scan_rep_mode; /* page scan repetition mode */
	uint8_t		page_scan_mode;     /* page scan mode */
	uint16_t	clock_offset;       /* clock offset */
} __attribute__ ((__packed__)) hci_remote_name_req_cp;
/* No return parameter(s) */

#define HCI_OCF_REMOTE_NAME_REQ_CANCEL			0x001a
#define HCI_CMD_REMOTE_NAME_REQ_CANCEL			0x041A
typedef struct {
	bdaddr_t	bdaddr;             /* remote address */
} __attribute__ ((__packed__)) hci_remote_name_req_cancel_cp;

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	bdaddr_t	bdaddr;         /* remote address */
} __attribute__ ((__packed__)) hci_remote_name_req_cancel_rp;

#define HCI_OCF_READ_REMOTE_FEATURES			0x001b
#define HCI_CMD_READ_REMOTE_FEATURES			0x041B
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_remote_features_cp;
/* No return parameter(s) */

#define HCI_OCF_READ_REMOTE_EXTENDED_FEATURES		0x001c
#define HCI_CMD_READ_REMOTE_EXTENDED_FEATURES		0x041C
typedef struct {
	uint16_t	con_handle;	/* connection handle */
	uint8_t		page;		/* page number */
} __attribute__ ((__packed__)) hci_read_remote_extended_features_cp;
/* No return parameter(s) */

#define HCI_OCF_READ_REMOTE_VER_INFO			0x001d
#define HCI_CMD_READ_REMOTE_VER_INFO			0x041D
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_remote_ver_info_cp;
/* No return parameter(s) */

#define HCI_OCF_READ_CLOCK_OFFSET			0x001f
#define HCI_CMD_READ_CLOCK_OFFSET			0x041F
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_clock_offset_cp;
/* No return parameter(s) */

#define HCI_OCF_READ_LMP_HANDLE				0x0020
#define HCI_CMD_READ_LMP_HANDLE				0x0420
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_lmp_handle_cp;

typedef struct {
	uint8_t		status;	    /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint8_t		lmp_handle; /* LMP handle */
	uint32_t	reserved;   /* reserved */
} __attribute__ ((__packed__)) hci_read_lmp_handle_rp;

#define HCI_OCF_SETUP_SCO_CON				0x0028
#define HCI_CMD_SETUP_SCO_CON				0x0428
typedef struct {
	uint16_t	con_handle;	/* connection handle */
	uint32_t	tx_bandwidth;	/* transmit bandwidth */
	uint32_t	rx_bandwidth;	/* receive bandwidth */
	uint16_t	latency;	/* maximum latency */
	uint16_t	voice;		/* voice setting */
	uint8_t		rt_effort;	/* retransmission effort */
	uint16_t	pkt_type;	/* packet types */
} __attribute__ ((__packed__)) hci_setup_sco_con_cp;
/* No return parameter(s) */

#define HCI_OCF_ACCEPT_SCO_CON_REQ			0x0029
#define HCI_CMD_ACCEPT_SCO_CON_REQ			0x0429
typedef struct {
	bdaddr_t	bdaddr;		/* remote address */
	uint32_t	tx_bandwidth;	/* transmit bandwidth */
	uint32_t	rx_bandwidth;	/* receive bandwidth */
	uint16_t	latency;	/* maximum latency */
	uint16_t	content;	/* voice setting */
	uint8_t		rt_effort;	/* retransmission effort */
	uint16_t	pkt_type;	/* packet types */
} __attribute__ ((__packed__)) hci_accept_sco_con_req_cp;
/* No return parameter(s) */

#define HCI_OCF_REJECT_SCO_CON_REQ			0x002a
#define HCI_CMD_REJECT_SCO_CON_REQ			0x042a
typedef struct {
	bdaddr_t	bdaddr;		/* remote address */
	uint8_t		reason;		/* reject error code */
} __attribute__ ((__packed__)) hci_reject_sco_con_req_cp;
/* No return parameter(s) */

/**************************************************************************
 **************************************************************************
 ** OGF 0x02	Link policy commands and return parameters
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_LINK_POLICY			0x02

#define HCI_OCF_HOLD_MODE				0x0001
#define HCI_CMD_HOLD_MODE				0x0801
typedef struct {
	uint16_t	con_handle;   /* connection handle */
	uint16_t	max_interval; /* (max_interval * 0.625) msec */
	uint16_t	min_interval; /* (max_interval * 0.625) msec */
} __attribute__ ((__packed__)) hci_hold_mode_cp;
/* No return parameter(s) */

#define HCI_OCF_SNIFF_MODE				0x0003
#define HCI_CMD_SNIFF_MODE				0x0803
typedef struct {
	uint16_t	con_handle;   /* connection handle */
	uint16_t	max_interval; /* (max_interval * 0.625) msec */
	uint16_t	min_interval; /* (max_interval * 0.625) msec */
	uint16_t	attempt;      /* (2 * attempt - 1) * 0.625 msec */
	uint16_t	timeout;      /* (2 * attempt - 1) * 0.625 msec */
} __attribute__ ((__packed__)) hci_sniff_mode_cp;
/* No return parameter(s) */

#define HCI_OCF_EXIT_SNIFF_MODE				0x0004
#define HCI_CMD_EXIT_SNIFF_MODE				0x0804
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_exit_sniff_mode_cp;
/* No return parameter(s) */

#define HCI_OCF_PARK_MODE				0x0005
#define HCI_CMD_PARK_MODE				0x0805
typedef struct {
	uint16_t	con_handle;   /* connection handle */
	uint16_t	max_interval; /* (max_interval * 0.625) msec */
	uint16_t	min_interval; /* (max_interval * 0.625) msec */
} __attribute__ ((__packed__)) hci_park_mode_cp;
/* No return parameter(s) */

#define HCI_OCF_EXIT_PARK_MODE				0x0006
#define HCI_CMD_EXIT_PARK_MODE				0x0806
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_exit_park_mode_cp;
/* No return parameter(s) */

#define HCI_OCF_QOS_SETUP				0x0007
#define HCI_CMD_QOS_SETUP				0x0807
typedef struct {
	uint16_t	con_handle;      /* connection handle */
	uint8_t		flags;           /* reserved for future use */
	uint8_t		service_type;    /* service type */
	uint32_t	token_rate;      /* bytes per second */
	uint32_t	peak_bandwidth;  /* bytes per second */
	uint32_t	latency;         /* microseconds */
	uint32_t	delay_variation; /* microseconds */
} __attribute__ ((__packed__)) hci_qos_setup_cp;
/* No return parameter(s) */

#define HCI_OCF_ROLE_DISCOVERY				0x0009
#define HCI_CMD_ROLE_DISCOVERY				0x0809
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_role_discovery_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint8_t		role;       /* role for the connection handle */
} __attribute__ ((__packed__)) hci_role_discovery_rp;

#define HCI_OCF_SWITCH_ROLE				0x000b
#define HCI_CMD_SWITCH_ROLE				0x080B
typedef struct {
	bdaddr_t	bdaddr; /* remote address */
	uint8_t		role;   /* new local role */
} __attribute__ ((__packed__)) hci_switch_role_cp;
/* No return parameter(s) */

#define HCI_OCF_READ_LINK_POLICY_SETTINGS		0x000c
#define HCI_CMD_READ_LINK_POLICY_SETTINGS		0x080C
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_link_policy_settings_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint16_t	settings;   /* link policy settings */
} __attribute__ ((__packed__)) hci_read_link_policy_settings_rp;

#define HCI_OCF_WRITE_LINK_POLICY_SETTINGS		0x000d
#define HCI_CMD_WRITE_LINK_POLICY_SETTINGS		0x080D
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint16_t	settings;   /* link policy settings */
} __attribute__ ((__packed__)) hci_write_link_policy_settings_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_write_link_policy_settings_rp;

#define HCI_OCF_READ_DEFAULT_LINK_POLICY_SETTINGS	0x000e
#define HCI_CMD_READ_DEFAULT_LINK_POLICY_SETTINGS	0x080E
/* No command parameter(s) */
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	settings;   /* link policy settings */
} __attribute__ ((__packed__)) hci_read_default_link_policy_settings_rp;

#define HCI_OCF_WRITE_DEFAULT_LINK_POLICY_SETTINGS	0x000f
#define HCI_CMD_WRITE_DEFAULT_LINK_POLICY_SETTINGS	0x080F
typedef struct {
	uint16_t	settings;   /* link policy settings */
} __attribute__ ((__packed__)) hci_write_default_link_policy_settings_cp;

typedef hci_status_rp	hci_write_default_link_policy_settings_rp;

#define HCI_OCF_FLOW_SPECIFICATION			0x0010
#define HCI_CMD_FLOW_SPECIFICATION			0x0810
typedef struct {
	uint16_t	con_handle;	/* connection handle */
	uint8_t		flags;		/* reserved */
	uint8_t		flow_direction;
	uint8_t		service_type;
	uint32_t	token_rate;
	uint32_t	token_bucket;
	uint32_t	peak_bandwidth;
	uint32_t	latency;
} __attribute__ ((__packed__)) hci_flow_specification_cp;
/* No return parameter(s) */

/**************************************************************************
 **************************************************************************
 ** OGF 0x03	Host Controller and Baseband commands and return parameters
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_HC_BASEBAND			0x03

#define HCI_OCF_SET_EVENT_MASK				0x0001
#define HCI_CMD_SET_EVENT_MASK				0x0C01
typedef struct {
	uint8_t		event_mask[HCI_EVENT_MASK_SIZE]; /* event_mask */
} __attribute__ ((__packed__)) hci_set_event_mask_cp;

typedef hci_status_rp	hci_set_event_mask_rp;

#define HCI_OCF_RESET					0x0003
#define HCI_CMD_RESET					0x0C03
/* No command parameter(s) */
typedef hci_status_rp	hci_reset_rp;

#define HCI_OCF_SET_EVENT_FILTER			0x0005
#define HCI_CMD_SET_EVENT_FILTER			0x0C05
typedef struct {
	uint8_t		filter_type;           /* filter type */
	uint8_t		filter_condition_type; /* filter condition type */
/* variable size condition
	uint8_t		condition[]; -- conditions */
} __attribute__ ((__packed__)) hci_set_event_filter_cp;

typedef hci_status_rp	hci_set_event_filter_rp;

#define HCI_OCF_FLUSH					0x0008
#define HCI_CMD_FLUSH					0x0C08
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_flush_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_flush_rp;

#define HCI_OCF_READ_PIN_TYPE				0x0009
#define HCI_CMD_READ_PIN_TYPE				0x0C09
/* No command parameter(s) */
typedef struct {
	uint8_t		status;   /* 0x00 - success */
	uint8_t		pin_type; /* PIN type */
} __attribute__ ((__packed__)) hci_read_pin_type_rp;

#define HCI_OCF_WRITE_PIN_TYPE				0x000a
#define HCI_CMD_WRITE_PIN_TYPE				0x0C0A
typedef struct {
	uint8_t		pin_type; /* PIN type */
} __attribute__ ((__packed__)) hci_write_pin_type_cp;

typedef hci_status_rp	hci_write_pin_type_rp;

#define HCI_OCF_CREATE_NEW_UNIT_KEY			0x000b
#define HCI_CMD_CREATE_NEW_UNIT_KEY			0x0C0B
/* No command parameter(s) */
typedef hci_status_rp	hci_create_new_unit_key_rp;

#define HCI_OCF_READ_STORED_LINK_KEY			0x000d
#define HCI_CMD_READ_STORED_LINK_KEY			0x0C0D
typedef struct {
	bdaddr_t	bdaddr;   /* address */
	uint8_t		read_all; /* read all keys? 0x01 - yes */
} __attribute__ ((__packed__)) hci_read_stored_link_key_cp;

typedef struct {
	uint8_t		status;        /* 0x00 - success */
	uint16_t	max_num_keys;  /* Max. number of keys */
	uint16_t	num_keys_read; /* Number of stored keys */
} __attribute__ ((__packed__)) hci_read_stored_link_key_rp;

#define HCI_OCF_WRITE_STORED_LINK_KEY			0x0011
#define HCI_CMD_WRITE_STORED_LINK_KEY			0x0C11
typedef struct {
	uint8_t		num_keys_write; /* # of keys to write */
/* these are repeated "num_keys_write" times
	bdaddr_t	bdaddr;             --- remote address(es)
	uint8_t		key[HCI_KEY_SIZE];  --- key(s) */
} __attribute__ ((__packed__)) hci_write_stored_link_key_cp;

typedef struct {
	uint8_t		status;           /* 0x00 - success */
	uint8_t		num_keys_written; /* # of keys successfully written */
} __attribute__ ((__packed__)) hci_write_stored_link_key_rp;

#define HCI_OCF_DELETE_STORED_LINK_KEY			0x0012
#define HCI_CMD_DELETE_STORED_LINK_KEY			0x0C12
typedef struct {
	bdaddr_t	bdaddr;     /* address */
	uint8_t		delete_all; /* delete all keys? 0x01 - yes */
} __attribute__ ((__packed__)) hci_delete_stored_link_key_cp;

typedef struct {
	uint8_t		status;           /* 0x00 - success */
	uint16_t	num_keys_deleted; /* Number of keys deleted */
} __attribute__ ((__packed__)) hci_delete_stored_link_key_rp;

#define HCI_OCF_WRITE_LOCAL_NAME			0x0013
#define HCI_CMD_WRITE_LOCAL_NAME			0x0C13
typedef struct {
	char		name[HCI_UNIT_NAME_SIZE]; /* new unit name */
} __attribute__ ((__packed__)) hci_write_local_name_cp;

typedef hci_status_rp	hci_write_local_name_rp;

#define HCI_OCF_READ_LOCAL_NAME				0x0014
#define HCI_CMD_READ_LOCAL_NAME				0x0C14
/* No command parameter(s) */
typedef struct {
	uint8_t		status;                   /* 0x00 - success */
	char		name[HCI_UNIT_NAME_SIZE]; /* unit name */
} __attribute__ ((__packed__)) hci_read_local_name_rp;

#define HCI_OCF_READ_CON_ACCEPT_TIMEOUT			0x0015
#define HCI_CMD_READ_CON_ACCEPT_TIMEOUT			0x0C15
/* No command parameter(s) */
typedef struct {
	uint8_t		status;  /* 0x00 - success */
	uint16_t	timeout; /* (timeout * 0.625) msec */
} __attribute__ ((__packed__)) hci_read_con_accept_timeout_rp;

#define HCI_OCF_WRITE_CON_ACCEPT_TIMEOUT		0x0016
#define HCI_CMD_WRITE_CON_ACCEPT_TIMEOUT		0x0C16
typedef struct {
	uint16_t	timeout; /* (timeout * 0.625) msec */
} __attribute__ ((__packed__)) hci_write_con_accept_timeout_cp;

typedef hci_status_rp	hci_write_con_accept_timeout_rp;

#define HCI_OCF_READ_PAGE_TIMEOUT			0x0017
#define HCI_CMD_READ_PAGE_TIMEOUT			0x0C17
/* No command parameter(s) */
typedef struct {
	uint8_t		status;  /* 0x00 - success */
	uint16_t	timeout; /* (timeout * 0.625) msec */
} __attribute__ ((__packed__)) hci_read_page_timeout_rp;

#define HCI_OCF_WRITE_PAGE_TIMEOUT			0x0018
#define HCI_CMD_WRITE_PAGE_TIMEOUT			0x0C18
typedef struct {
	uint16_t	timeout; /* (timeout * 0.625) msec */
} __attribute__ ((__packed__)) hci_write_page_timeout_cp;

typedef hci_status_rp	hci_write_page_timeout_rp;

#define HCI_OCF_READ_SCAN_ENABLE			0x0019
#define HCI_CMD_READ_SCAN_ENABLE			0x0C19
/* No command parameter(s) */
typedef struct {
	uint8_t		status;      /* 0x00 - success */
	uint8_t		scan_enable; /* Scan enable */
} __attribute__ ((__packed__)) hci_read_scan_enable_rp;

#define HCI_OCF_WRITE_SCAN_ENABLE			0x001a
#define HCI_CMD_WRITE_SCAN_ENABLE			0x0C1A
typedef struct {
	uint8_t		scan_enable; /* Scan enable */
} __attribute__ ((__packed__)) hci_write_scan_enable_cp;

typedef hci_status_rp	hci_write_scan_enable_rp;

#define HCI_OCF_READ_PAGE_SCAN_ACTIVITY			0x001b
#define HCI_CMD_READ_PAGE_SCAN_ACTIVITY			0x0C1B
/* No command parameter(s) */
typedef struct {
	uint8_t		status;             /* 0x00 - success */
	uint16_t	page_scan_interval; /* interval * 0.625 msec */
	uint16_t	page_scan_window;   /* window * 0.625 msec */
} __attribute__ ((__packed__)) hci_read_page_scan_activity_rp;

#define HCI_OCF_WRITE_PAGE_SCAN_ACTIVITY		0x001c
#define HCI_CMD_WRITE_PAGE_SCAN_ACTIVITY		0x0C1C
typedef struct {
	uint16_t	page_scan_interval; /* interval * 0.625 msec */
	uint16_t	page_scan_window;   /* window * 0.625 msec */
} __attribute__ ((__packed__)) hci_write_page_scan_activity_cp;

typedef hci_status_rp	hci_write_page_scan_activity_rp;

#define HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY		0x001d
#define HCI_CMD_READ_INQUIRY_SCAN_ACTIVITY		0x0C1D
/* No command parameter(s) */
typedef struct {
	uint8_t		status;                /* 0x00 - success */
	uint16_t	inquiry_scan_interval; /* interval * 0.625 msec */
	uint16_t	inquiry_scan_window;   /* window * 0.625 msec */
} __attribute__ ((__packed__)) hci_read_inquiry_scan_activity_rp;

#define HCI_OCF_WRITE_INQUIRY_SCAN_ACTIVITY		0x001e
#define HCI_CMD_WRITE_INQUIRY_SCAN_ACTIVITY		0x0C1E
typedef struct {
	uint16_t	inquiry_scan_interval; /* interval * 0.625 msec */
	uint16_t	inquiry_scan_window;   /* window * 0.625 msec */
} __attribute__ ((__packed__)) hci_write_inquiry_scan_activity_cp;

typedef hci_status_rp	hci_write_inquiry_scan_activity_rp;

#define HCI_OCF_READ_AUTH_ENABLE			0x001f
#define HCI_CMD_READ_AUTH_ENABLE			0x0C1F
/* No command parameter(s) */
typedef struct {
	uint8_t		status;      /* 0x00 - success */
	uint8_t		auth_enable; /* 0x01 - enabled */
} __attribute__ ((__packed__)) hci_read_auth_enable_rp;

#define HCI_OCF_WRITE_AUTH_ENABLE			0x0020
#define HCI_CMD_WRITE_AUTH_ENABLE			0x0C20
typedef struct {
	uint8_t		auth_enable; /* 0x01 - enabled */
} __attribute__ ((__packed__)) hci_write_auth_enable_cp;

typedef hci_status_rp	hci_write_auth_enable_rp;

#define HCI_OCF_READ_ENCRYPTION_MODE			0x0021
#define HCI_CMD_READ_ENCRYPTION_MODE			0x0C21
/* No command parameter(s) */
typedef struct {
	uint8_t		status;          /* 0x00 - success */
	uint8_t		encryption_mode; /* encryption mode */
} __attribute__ ((__packed__)) hci_read_encryption_mode_rp;

#define HCI_OCF_WRITE_ENCRYPTION_MODE			0x0022
#define HCI_CMD_WRITE_ENCRYPTION_MODE			0x0C22
typedef struct {
	uint8_t		encryption_mode; /* encryption mode */
} __attribute__ ((__packed__)) hci_write_encryption_mode_cp;

typedef hci_status_rp	hci_write_encryption_mode_rp;

#define HCI_OCF_READ_UNIT_CLASS				0x0023
#define HCI_CMD_READ_UNIT_CLASS				0x0C23
/* No command parameter(s) */
typedef struct {
	uint8_t		status;                 /* 0x00 - success */
	uint8_t		uclass[HCI_CLASS_SIZE]; /* unit class */
} __attribute__ ((__packed__)) hci_read_unit_class_rp;

#define HCI_OCF_WRITE_UNIT_CLASS			0x0024
#define HCI_CMD_WRITE_UNIT_CLASS			0x0C24
typedef struct {
	uint8_t		uclass[HCI_CLASS_SIZE]; /* unit class */
} __attribute__ ((__packed__)) hci_write_unit_class_cp;

typedef hci_status_rp	hci_write_unit_class_rp;

#define HCI_OCF_READ_VOICE_SETTING			0x0025
#define HCI_CMD_READ_VOICE_SETTING			0x0C25
/* No command parameter(s) */
typedef struct {
	uint8_t		status;   /* 0x00 - success */
	uint16_t	settings; /* voice settings */
} __attribute__ ((__packed__)) hci_read_voice_setting_rp;

#define HCI_OCF_WRITE_VOICE_SETTING			0x0026
#define HCI_CMD_WRITE_VOICE_SETTING			0x0C26
typedef struct {
	uint16_t	settings; /* voice settings */
} __attribute__ ((__packed__)) hci_write_voice_setting_cp;

typedef hci_status_rp	hci_write_voice_setting_rp;

#define HCI_OCF_READ_AUTO_FLUSH_TIMEOUT			0x0027
#define HCI_CMD_READ_AUTO_FLUSH_TIMEOUT			0x0C27
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_auto_flush_timeout_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint16_t	timeout;    /* 0x00 - no flush, timeout * 0.625 msec */
} __attribute__ ((__packed__)) hci_read_auto_flush_timeout_rp;

#define HCI_OCF_WRITE_AUTO_FLUSH_TIMEOUT		0x0028
#define HCI_CMD_WRITE_AUTO_FLUSH_TIMEOUT		0x0C28
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint16_t	timeout;    /* 0x00 - no flush, timeout * 0.625 msec */
} __attribute__ ((__packed__)) hci_write_auto_flush_timeout_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_write_auto_flush_timeout_rp;

#define HCI_OCF_READ_NUM_BROADCAST_RETRANS		0x0029
#define HCI_CMD_READ_NUM_BROADCAST_RETRANS		0x0C29
/* No command parameter(s) */
typedef struct {
	uint8_t		status;  /* 0x00 - success */
	uint8_t		counter; /* number of broadcast retransmissions */
} __attribute__ ((__packed__)) hci_read_num_broadcast_retrans_rp;

#define HCI_OCF_WRITE_NUM_BROADCAST_RETRANS		0x002a
#define HCI_CMD_WRITE_NUM_BROADCAST_RETRANS		0x0C2A
typedef struct {
	uint8_t		counter; /* number of broadcast retransmissions */
} __attribute__ ((__packed__)) hci_write_num_broadcast_retrans_cp;

typedef hci_status_rp	hci_write_num_broadcast_retrans_rp;

#define HCI_OCF_READ_HOLD_MODE_ACTIVITY			0x002b
#define HCI_CMD_READ_HOLD_MODE_ACTIVITY			0x0C2B
/* No command parameter(s) */
typedef struct {
	uint8_t		status;             /* 0x00 - success */
	uint8_t		hold_mode_activity; /* Hold mode activities */
} __attribute__ ((__packed__)) hci_read_hold_mode_activity_rp;

#define HCI_OCF_WRITE_HOLD_MODE_ACTIVITY		0x002c
#define HCI_CMD_WRITE_HOLD_MODE_ACTIVITY		0x0C2C
typedef struct {
	uint8_t		hold_mode_activity; /* Hold mode activities */
} __attribute__ ((__packed__)) hci_write_hold_mode_activity_cp;

typedef hci_status_rp	hci_write_hold_mode_activity_rp;

#define HCI_OCF_READ_XMIT_LEVEL				0x002d
#define HCI_CMD_READ_XMIT_LEVEL				0x0C2D
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint8_t		type;       /* Xmit level type */
} __attribute__ ((__packed__)) hci_read_xmit_level_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	char		level;      /* -30 <= level <= 30 dBm */
} __attribute__ ((__packed__)) hci_read_xmit_level_rp;

#define HCI_OCF_READ_SCO_FLOW_CONTROL			0x002e
#define HCI_CMD_READ_SCO_FLOW_CONTROL			0x0C2E
/* No command parameter(s) */
typedef struct {
	uint8_t		status;       /* 0x00 - success */
	uint8_t		flow_control; /* 0x00 - disabled */
} __attribute__ ((__packed__)) hci_read_sco_flow_control_rp;

#define HCI_OCF_WRITE_SCO_FLOW_CONTROL			0x002f
#define HCI_CMD_WRITE_SCO_FLOW_CONTROL			0x0C2F
typedef struct {
	uint8_t		flow_control; /* 0x00 - disabled */
} __attribute__ ((__packed__)) hci_write_sco_flow_control_cp;

typedef hci_status_rp	hci_write_sco_flow_control_rp;

#define HCI_OCF_HC2H_FLOW_CONTROL			0x0031
#define HCI_CMD_HC2H_FLOW_CONTROL			0x0C31
typedef struct {
	uint8_t		hc2h_flow; /* Host Controller to Host flow control */
} __attribute__ ((__packed__)) hci_hc2h_flow_control_cp;

typedef hci_status_rp	hci_h2hc_flow_control_rp;

#define HCI_OCF_HOST_BUFFER_SIZE			0x0033
#define HCI_CMD_HOST_BUFFER_SIZE			0x0C33
typedef struct {
	uint16_t	max_acl_size; /* Max. size of ACL packet (bytes) */
	uint8_t		max_sco_size; /* Max. size of SCO packet (bytes) */
	uint16_t	num_acl_pkts;  /* Max. number of ACL packets */
	uint16_t	num_sco_pkts;  /* Max. number of SCO packets */
} __attribute__ ((__packed__)) hci_host_buffer_size_cp;

typedef hci_status_rp	hci_host_buffer_size_rp;

#define HCI_OCF_HOST_NUM_COMPL_PKTS			0x0035
#define HCI_CMD_HOST_NUM_COMPL_PKTS			0x0C35
typedef struct {
	uint8_t		nu_con_handles; /* # of connection handles */
/* these are repeated "num_con_handles" times
	uint16_t	con_handle;    --- connection handle(s)
	uint16_t	compl_pkts;    --- # of completed packets */
} __attribute__ ((__packed__)) hci_host_num_compl_pkts_cp;
/* No return parameter(s) */

#define HCI_OCF_READ_LINK_SUPERVISION_TIMEOUT		0x0036
#define HCI_CMD_READ_LINK_SUPERVISION_TIMEOUT		0x0C36
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_link_supervision_timeout_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint16_t	timeout;    /* Link supervision timeout * 0.625 msec */
} __attribute__ ((__packed__)) hci_read_link_supervision_timeout_rp;

#define HCI_OCF_WRITE_LINK_SUPERVISION_TIMEOUT		0x0037
#define HCI_CMD_WRITE_LINK_SUPERVISION_TIMEOUT		0x0C37
typedef struct {
	uint16_t	con_handle; /* connection handle */
	uint16_t	timeout;    /* Link supervision timeout * 0.625 msec */
} __attribute__ ((__packed__)) hci_write_link_supervision_timeout_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_write_link_supervision_timeout_rp;

#define HCI_OCF_READ_NUM_SUPPORTED_IAC			0x0038
#define HCI_CMD_READ_NUM_SUPPORTED_IAC			0x0C38
/* No command parameter(s) */
typedef struct {
	uint8_t		status;  /* 0x00 - success */
	uint8_t		num_iac; /* # of supported IAC during scan */
} __attribute__ ((__packed__)) hci_read_num_supported_iac_rp;

#define HCI_OCF_READ_IAC_LAP				0x0039
#define HCI_CMD_READ_IAC_LAP				0x0C39
/* No command parameter(s) */
typedef struct {
	uint8_t		status;  /* 0x00 - success */
	uint8_t		num_iac; /* # of IAC */
/* these are repeated "num_iac" times
	uint8_t		laps[HCI_LAP_SIZE]; --- LAPs */
} __attribute__ ((__packed__)) hci_read_iac_lap_rp;

#define HCI_OCF_WRITE_IAC_LAP				0x003a
#define HCI_CMD_WRITE_IAC_LAP				0x0C3A
typedef struct {
	uint8_t		num_iac; /* # of IAC */
/* these are repeated "num_iac" times
	uint8_t		laps[HCI_LAP_SIZE]; --- LAPs */
} __attribute__ ((__packed__)) hci_write_iac_lap_cp;

typedef hci_status_rp	hci_write_iac_lap_rp;

#define HCI_OCF_READ_PAGE_SCAN_PERIOD			0x003b
#define HCI_CMD_READ_PAGE_SCAN_PERIOD			0x0C3B
/* No command parameter(s) */
typedef struct {
	uint8_t		status;                /* 0x00 - success */
	uint8_t		page_scan_period_mode; /* Page scan period mode */
} __attribute__ ((__packed__)) hci_read_page_scan_period_rp;

#define HCI_OCF_WRITE_PAGE_SCAN_PERIOD			0x003c
#define HCI_CMD_WRITE_PAGE_SCAN_PERIOD			0x0C3C
typedef struct {
	uint8_t		page_scan_period_mode; /* Page scan period mode */
} __attribute__ ((__packed__)) hci_write_page_scan_period_cp;

typedef hci_status_rp	hci_write_page_scan_period_rp;

/* Read Page Scan Mode is deprecated */
#define HCI_OCF_READ_PAGE_SCAN				0x003d
#define HCI_CMD_READ_PAGE_SCAN				0x0C3D
/* No command parameter(s) */
typedef struct {
	uint8_t		status;         /* 0x00 - success */
	uint8_t		page_scan_mode; /* Page scan mode */
} __attribute__ ((__packed__)) hci_read_page_scan_rp;

/* Write Page Scan Mode is deprecated */
#define HCI_OCF_WRITE_PAGE_SCAN				0x003e
#define HCI_CMD_WRITE_PAGE_SCAN				0x0C3E
typedef struct {
	uint8_t		page_scan_mode; /* Page scan mode */
} __attribute__ ((__packed__)) hci_write_page_scan_cp;

typedef hci_status_rp	hci_write_page_scan_rp;

#define HCI_OCF_SET_AFH_CLASSIFICATION			0x003f
#define HCI_CMD_SET_AFH_CLASSIFICATION			0x0C3F
typedef struct {
	uint8_t		classification[10];
} __attribute__ ((__packed__)) hci_set_afh_classification_cp;

typedef hci_status_rp	hci_set_afh_classification_rp;

#define HCI_OCF_READ_INQUIRY_SCAN_TYPE			0x0042
#define HCI_CMD_READ_INQUIRY_SCAN_TYPE			0x0C42
/* No command parameter(s) */

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint8_t		type;		/* inquiry scan type */
} __attribute__ ((__packed__)) hci_read_inquiry_scan_type_rp;

#define HCI_OCF_WRITE_INQUIRY_SCAN_TYPE			0x0043
#define HCI_CMD_WRITE_INQUIRY_SCAN_TYPE			0x0C43
typedef struct {
	uint8_t		type;		/* inquiry scan type */
} __attribute__ ((__packed__)) hci_write_inquiry_scan_type_cp;

typedef hci_status_rp	hci_write_inquiry_scan_type_rp;

#define HCI_OCF_READ_INQUIRY_MODE			0x0044
#define HCI_CMD_READ_INQUIRY_MODE			0x0C44
/* No command parameter(s) */

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint8_t		mode;		/* inquiry mode */
} __attribute__ ((__packed__)) hci_read_inquiry_mode_rp;

#define HCI_OCF_WRITE_INQUIRY_MODE			0x0045
#define HCI_CMD_WRITE_INQUIRY_MODE			0x0C45
typedef struct {
	uint8_t		mode;		/* inquiry mode */
} __attribute__ ((__packed__)) hci_write_inquiry_mode_cp;

typedef hci_status_rp	hci_write_inquiry_mode_rp;

#define HCI_OCF_READ_PAGE_SCAN_TYPE			0x0046
#define HCI_CMD_READ_PAGE_SCAN_TYPE			0x0C46
/* No command parameter(s) */

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint8_t		type;		/* page scan type */
} __attribute__ ((__packed__)) hci_read_page_scan_type_rp;

#define HCI_OCF_WRITE_PAGE_SCAN_TYPE			0x0047
#define HCI_CMD_WRITE_PAGE_SCAN_TYPE			0x0C47
typedef struct {
	uint8_t		type;		/* page scan type */
} __attribute__ ((__packed__)) hci_write_page_scan_type_cp;

typedef hci_status_rp	hci_write_page_scan_type_rp;

#define HCI_OCF_READ_AFH_ASSESSMENT			0x0048
#define HCI_CMD_READ_AFH_ASSESSMENT			0x0C48
/* No command parameter(s) */

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint8_t		mode;		/* assessment mode */
} __attribute__ ((__packed__)) hci_read_afh_assessment_rp;

#define HCI_OCF_WRITE_AFH_ASSESSMENT			0x0049
#define HCI_CMD_WRITE_AFH_ASSESSMENT			0x0C49
typedef struct {
	uint8_t		mode;		/* assessment mode */
} __attribute__ ((__packed__)) hci_write_afh_assessment_cp;

typedef hci_status_rp	hci_write_afh_assessment_rp;

/**************************************************************************
 **************************************************************************
 ** OGF 0x04	Informational commands and return parameters
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_INFO				0x04

#define HCI_OCF_READ_LOCAL_VER				0x0001
#define HCI_CMD_READ_LOCAL_VER				0x1001
/* No command parameter(s) */
typedef struct {
	uint8_t		status;         /* 0x00 - success */
	uint8_t		hci_version;    /* HCI version */
	uint16_t	hci_revision;   /* HCI revision */
	uint8_t		lmp_version;    /* LMP version */
	uint16_t	manufacturer;   /* Hardware manufacturer name */
	uint16_t	lmp_subversion; /* LMP sub-version */
} __attribute__ ((__packed__)) hci_read_local_ver_rp;

#define HCI_OCF_READ_LOCAL_COMMANDS			0x0002
#define HCI_CMD_READ_LOCAL_COMMANDS			0x1002
/* No command parameter(s) */
typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint8_t		commands[HCI_COMMANDS_SIZE];	/* opcode bitmask */
} __attribute__ ((__packed__)) hci_read_local_commands_rp;

#define HCI_OCF_READ_LOCAL_FEATURES			0x0003
#define HCI_CMD_READ_LOCAL_FEATURES			0x1003
/* No command parameter(s) */
typedef struct {
	uint8_t		status;                      /* 0x00 - success */
	uint8_t		features[HCI_FEATURES_SIZE]; /* LMP features bitmsk*/
} __attribute__ ((__packed__)) hci_read_local_features_rp;

#define HCI_OCF_READ_LOCAL_EXTENDED_FEATURES		0x0004
#define HCI_CMD_READ_LOCAL_EXTENDED_FEATURES		0x1004
typedef struct {
	uint8_t		page;		/* page number */
} __attribute__ ((__packed__)) hci_read_local_extended_features_cp;

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint8_t		page;		/* page number */
	uint8_t		max_page;	/* maximum page number */
	uint8_t		features[HCI_FEATURES_SIZE];	/* LMP features */
} __attribute__ ((__packed__)) hci_read_local_extended_features_rp;

#define HCI_OCF_READ_BUFFER_SIZE			0x0005
#define HCI_CMD_READ_BUFFER_SIZE			0x1005
/* No command parameter(s) */
typedef struct {
	uint8_t		status;       /* 0x00 - success */
	uint16_t	max_acl_size; /* Max. size of ACL packet (bytes) */
	uint8_t		max_sco_size; /* Max. size of SCO packet (bytes) */
	uint16_t	num_acl_pkts;  /* Max. number of ACL packets */
	uint16_t	num_sco_pkts;  /* Max. number of SCO packets */
} __attribute__ ((__packed__)) hci_read_buffer_size_rp;

/* Read Country Code is deprecated */
#define HCI_OCF_READ_COUNTRY_CODE			0x0007
#define HCI_CMD_READ_COUNTRY_CODE			0x1007
/* No command parameter(s) */
typedef struct {
	uint8_t		status;       /* 0x00 - success */
	uint8_t		country_code; /* 0x00 - NAM, EUR, JP; 0x01 - France */
} __attribute__ ((__packed__)) hci_read_country_code_rp;

#define HCI_OCF_READ_BDADDR				0x0009
#define HCI_CMD_READ_BDADDR				0x1009
/* No command parameter(s) */
typedef struct {
	uint8_t		status; /* 0x00 - success */
	bdaddr_t	bdaddr; /* unit address */
} __attribute__ ((__packed__)) hci_read_bdaddr_rp;

/**************************************************************************
 **************************************************************************
 ** OGF 0x05	Status commands and return parameters
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_STATUS				0x05

#define HCI_OCF_READ_FAILED_CONTACT_CNTR		0x0001
#define HCI_CMD_READ_FAILED_CONTACT_CNTR		0x1401
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_failed_contact_cntr_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint16_t	counter;    /* number of consecutive failed contacts */
} __attribute__ ((__packed__)) hci_read_failed_contact_cntr_rp;

#define HCI_OCF_RESET_FAILED_CONTACT_CNTR		0x0002
#define HCI_CMD_RESET_FAILED_CONTACT_CNTR		0x1402
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_reset_failed_contact_cntr_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_reset_failed_contact_cntr_rp;

#define HCI_OCF_READ_LINK_QUALITY			0x0003
#define HCI_CMD_READ_LINK_QUALITY			0x1403
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_link_quality_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint8_t		quality;    /* higher value means better quality */
} __attribute__ ((__packed__)) hci_read_link_quality_rp;

#define HCI_OCF_READ_RSSI				0x0005
#define HCI_CMD_READ_RSSI				0x1405
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_rssi_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	char		rssi;       /* -127 <= rssi <= 127 dB */
} __attribute__ ((__packed__)) hci_read_rssi_rp;

#define HCI_OCF_READ_AFH_CHANNEL_MAP			0x0006
#define HCI_CMD_READ_AFH_CHANNEL_MAP			0x1406
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_read_afh_channel_map_cp;

typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint8_t		mode;       /* AFH mode */
	uint8_t		map[10];    /* AFH Channel Map */
} __attribute__ ((__packed__)) hci_read_afh_channel_map_rp;

#define HCI_OCF_READ_CLOCK				0x0007
#define HCI_CMD_READ_CLOCK				0x1407
typedef struct {
	uint16_t	con_handle;	/* connection handle */
	uint8_t		clock;		/* which clock */
} __attribute__ ((__packed__)) hci_read_clock_cp;

typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint16_t	con_handle;	/* connection handle */
	uint32_t	clock;		/* clock value */
	uint16_t	accuracy;	/* clock accuracy */
} __attribute__ ((__packed__)) hci_read_clock_rp;


/**************************************************************************
 **************************************************************************
 ** OGF 0x06	Testing commands and return parameters
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_TESTING				0x06

#define HCI_OCF_READ_LOOPBACK_MODE			0x0001
#define HCI_CMD_READ_LOOPBACK_MODE			0x1801
/* No command parameter(s) */
typedef struct {
	uint8_t		status; /* 0x00 - success */
	uint8_t		lbmode; /* loopback mode */
} __attribute__ ((__packed__)) hci_read_loopback_mode_rp;

#define HCI_OCF_WRITE_LOOPBACK_MODE			0x0002
#define HCI_CMD_WRITE_LOOPBACK_MODE			0x1802
typedef struct {
	uint8_t		lbmode; /* loopback mode */
} __attribute__ ((__packed__)) hci_write_loopback_mode_cp;

typedef hci_status_rp	hci_write_loopback_mode_rp;

#define HCI_OCF_ENABLE_UNIT_UNDER_TEST			0x0003
#define HCI_CMD_ENABLE_UNIT_UNDER_TEST			0x1803
/* No command parameter(s) */
typedef hci_status_rp	hci_enable_unit_under_test_rp;

/**************************************************************************
 **************************************************************************
 ** OGF 0x3e	Bluetooth Logo Testing
 ** OGF 0x3f	Vendor Specific
 **************************************************************************
 **************************************************************************/

#define HCI_OGF_BT_LOGO				0x3e
#define HCI_OGF_VENDOR				0x3f

/* Ericsson specific FC */
#define HCI_CMD_ERICSSON_WRITE_PCM_SETTINGS		0xFC07
#define HCI_CMD_ERICSSON_SET_UART_BAUD_RATE		0xFC09
#define HCI_CMD_ERICSSON_SET_SCO_DATA_PATH		0xFC1D

/* Cambridge Silicon Radio specific FC */
#define HCI_CMD_CSR_EXTN				0xFC00


/**************************************************************************
 **************************************************************************
 **                         Events and event parameters
 **************************************************************************
 **************************************************************************/

#define HCI_EVENT_INQUIRY_COMPL			0x01
typedef struct {
	uint8_t		status; /* 0x00 - success */
} __attribute__ ((__packed__)) hci_inquiry_compl_ep;

#define HCI_EVENT_INQUIRY_RESULT		0x02
typedef struct {
	uint8_t		num_responses;      /* number of responses */
/*	hci_inquiry_response[num_responses]   -- see below */
} __attribute__ ((__packed__)) hci_inquiry_result_ep;

typedef struct {
	bdaddr_t	bdaddr;                   /* unit address */
	uint8_t		page_scan_rep_mode;       /* page scan rep. mode */
	uint8_t		page_scan_period_mode;    /* page scan period mode */
	uint8_t		page_scan_mode;           /* page scan mode */
	uint8_t		uclass[HCI_CLASS_SIZE];   /* unit class */
	uint16_t	clock_offset;             /* clock offset */
} __attribute__ ((__packed__)) hci_inquiry_response;

#define HCI_EVENT_CON_COMPL			0x03
typedef struct {
	uint8_t		status;          /* 0x00 - success */
	uint16_t	con_handle;      /* Connection handle */
	bdaddr_t	bdaddr;          /* remote unit address */
	uint8_t		link_type;       /* Link type */
	uint8_t		encryption_mode; /* Encryption mode */
} __attribute__ ((__packed__)) hci_con_compl_ep;

#define HCI_EVENT_CON_REQ			0x04
typedef struct {
	bdaddr_t	bdaddr;                 /* remote unit address */
	uint8_t		uclass[HCI_CLASS_SIZE]; /* remote unit class */
	uint8_t		link_type;              /* link type */
} __attribute__ ((__packed__)) hci_con_req_ep;

#define HCI_EVENT_DISCON_COMPL			0x05
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint8_t		reason;     /* reason to disconnect */
} __attribute__ ((__packed__)) hci_discon_compl_ep;

#define HCI_EVENT_AUTH_COMPL			0x06
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_auth_compl_ep;

#define HCI_EVENT_REMOTE_NAME_REQ_COMPL		0x07
typedef struct {
	uint8_t		status;                   /* 0x00 - success */
	bdaddr_t	bdaddr;                   /* remote unit address */
	char		name[HCI_UNIT_NAME_SIZE]; /* remote unit name */
} __attribute__ ((__packed__)) hci_remote_name_req_compl_ep;

#define HCI_EVENT_ENCRYPTION_CHANGE		0x08
typedef struct {
	uint8_t		status;            /* 0x00 - success */
	uint16_t	con_handle;        /* Connection handle */
	uint8_t		encryption_enable; /* 0x00 - disable */
} __attribute__ ((__packed__)) hci_encryption_change_ep;

#define HCI_EVENT_CHANGE_CON_LINK_KEY_COMPL	0x09
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* Connection handle */
} __attribute__ ((__packed__)) hci_change_con_link_key_compl_ep;

#define HCI_EVENT_MASTER_LINK_KEY_COMPL		0x0a
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* Connection handle */
	uint8_t		key_flag;   /* Key flag */
} __attribute__ ((__packed__)) hci_master_link_key_compl_ep;

#define HCI_EVENT_READ_REMOTE_FEATURES_COMPL	0x0b
typedef struct {
	uint8_t		status;                      /* 0x00 - success */
	uint16_t	con_handle;                  /* Connection handle */
	uint8_t		features[HCI_FEATURES_SIZE]; /* LMP features bitmsk*/
} __attribute__ ((__packed__)) hci_read_remote_features_compl_ep;

#define HCI_EVENT_READ_REMOTE_VER_INFO_COMPL	0x0c
typedef struct {
	uint8_t		status;         /* 0x00 - success */
	uint16_t	con_handle;     /* Connection handle */
	uint8_t		lmp_version;    /* LMP version */
	uint16_t	manufacturer;   /* Hardware manufacturer name */
	uint16_t	lmp_subversion; /* LMP sub-version */
} __attribute__ ((__packed__)) hci_read_remote_ver_info_compl_ep;

#define HCI_EVENT_QOS_SETUP_COMPL		0x0d
typedef struct {
	uint8_t		status;          /* 0x00 - success */
	uint16_t	con_handle;      /* connection handle */
	uint8_t		flags;           /* reserved for future use */
	uint8_t		service_type;    /* service type */
	uint32_t	token_rate;      /* bytes per second */
	uint32_t	peak_bandwidth;  /* bytes per second */
	uint32_t	latency;         /* microseconds */
	uint32_t	delay_variation; /* microseconds */
} __attribute__ ((__packed__)) hci_qos_setup_compl_ep;

#define HCI_EVENT_COMMAND_COMPL			0x0e
typedef struct {
	uint8_t		num_cmd_pkts; /* # of HCI command packets */
	uint16_t	opcode;       /* command OpCode */
	/* command return parameters (if any) */
} __attribute__ ((__packed__)) hci_command_compl_ep;

#define HCI_EVENT_COMMAND_STATUS		0x0f
typedef struct {
	uint8_t		status;       /* 0x00 - pending */
	uint8_t		num_cmd_pkts; /* # of HCI command packets */
	uint16_t	opcode;       /* command OpCode */
} __attribute__ ((__packed__)) hci_command_status_ep;

#define HCI_EVENT_HARDWARE_ERROR		0x10
typedef struct {
	uint8_t		hardware_code; /* hardware error code */
} __attribute__ ((__packed__)) hci_hardware_error_ep;

#define HCI_EVENT_FLUSH_OCCUR			0x11
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_flush_occur_ep;

#define HCI_EVENT_ROLE_CHANGE			0x12
typedef struct {
	uint8_t		status; /* 0x00 - success */
	bdaddr_t	bdaddr; /* address of remote unit */
	uint8_t		role;   /* new connection role */
} __attribute__ ((__packed__)) hci_role_change_ep;

#define HCI_EVENT_NUM_COMPL_PKTS		0x13
typedef struct {
	uint8_t		num_con_handles; /* # of connection handles */
/* these are repeated "num_con_handles" times
	uint16_t	con_handle; --- connection handle(s)
	uint16_t	compl_pkts; --- # of completed packets */
} __attribute__ ((__packed__)) hci_num_compl_pkts_ep;

#define HCI_EVENT_MODE_CHANGE			0x14
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint8_t		unit_mode;  /* remote unit mode */
	uint16_t	interval;   /* interval * 0.625 msec */
} __attribute__ ((__packed__)) hci_mode_change_ep;

#define HCI_EVENT_RETURN_LINK_KEYS		0x15
typedef struct {
	uint8_t		num_keys; /* # of keys */
/* these are repeated "num_keys" times
	bdaddr_t	bdaddr;               --- remote address(es)
	uint8_t		key[HCI_KEY_SIZE]; --- key(s) */
} __attribute__ ((__packed__)) hci_return_link_keys_ep;

#define HCI_EVENT_PIN_CODE_REQ			0x16
typedef struct {
	bdaddr_t	bdaddr; /* remote unit address */
} __attribute__ ((__packed__)) hci_pin_code_req_ep;

#define HCI_EVENT_LINK_KEY_REQ			0x17
typedef struct {
	bdaddr_t	bdaddr; /* remote unit address */
} __attribute__ ((__packed__)) hci_link_key_req_ep;

#define HCI_EVENT_LINK_KEY_NOTIFICATION		0x18
typedef struct {
	bdaddr_t	bdaddr;            /* remote unit address */
	uint8_t		key[HCI_KEY_SIZE]; /* link key */
	uint8_t		key_type;          /* type of the key */
} __attribute__ ((__packed__)) hci_link_key_notification_ep;

#define HCI_EVENT_LOOPBACK_COMMAND		0x19
typedef hci_cmd_hdr_t	hci_loopback_command_ep;

#define HCI_EVENT_DATA_BUFFER_OVERFLOW		0x1a
typedef struct {
	uint8_t		link_type; /* Link type */
} __attribute__ ((__packed__)) hci_data_buffer_overflow_ep;

#define HCI_EVENT_MAX_SLOT_CHANGE		0x1b
typedef struct {
	uint16_t	con_handle;    /* connection handle */
	uint8_t		lmp_max_slots; /* Max. # of slots allowed */
} __attribute__ ((__packed__)) hci_max_slot_change_ep;

#define HCI_EVENT_READ_CLOCK_OFFSET_COMPL	0x1c
typedef struct {
	uint8_t		status;       /* 0x00 - success */
	uint16_t	con_handle;   /* Connection handle */
	uint16_t	clock_offset; /* Clock offset */
} __attribute__ ((__packed__)) hci_read_clock_offset_compl_ep;

#define HCI_EVENT_CON_PKT_TYPE_CHANGED		0x1d
typedef struct {
	uint8_t		status;     /* 0x00 - success */
	uint16_t	con_handle; /* connection handle */
	uint16_t	pkt_type;   /* packet type */
} __attribute__ ((__packed__)) hci_con_pkt_type_changed_ep;

#define HCI_EVENT_QOS_VIOLATION			0x1e
typedef struct {
	uint16_t	con_handle; /* connection handle */
} __attribute__ ((__packed__)) hci_qos_violation_ep;

/* Page Scan Mode Change Event is deprecated */
#define HCI_EVENT_PAGE_SCAN_MODE_CHANGE		0x1f
typedef struct {
	bdaddr_t	bdaddr;         /* destination address */
	uint8_t		page_scan_mode; /* page scan mode */
} __attribute__ ((__packed__)) hci_page_scan_mode_change_ep;

#define HCI_EVENT_PAGE_SCAN_REP_MODE_CHANGE	0x20
typedef struct {
	bdaddr_t	bdaddr;             /* destination address */
	uint8_t		page_scan_rep_mode; /* page scan repetition mode */
} __attribute__ ((__packed__)) hci_page_scan_rep_mode_change_ep;

#define HCI_EVENT_FLOW_SPECIFICATION_COMPL	0x21
typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint16_t	con_handle;	/* connection handle */
	uint8_t		flags;		/* reserved */
	uint8_t		direction;	/* flow direction */
	uint8_t		type;		/* service type */
	uint32_t	token_rate;	/* token rate */
	uint32_t	bucket_size;	/* token bucket size */
	uint32_t	peak_bandwidth;	/* peak bandwidth */
	uint32_t	latency;	/* access latency */
} __attribute__ ((__packed__)) hci_flow_specification_compl_ep;

#define HCI_EVENT_RSSI_RESULT			0x22
typedef struct {
	uint8_t		num_responses;      /* number of responses */
/*	hci_rssi_response[num_responses]   -- see below */
} __attribute__ ((__packed__)) hci_rssi_result_ep;

typedef struct {
	bdaddr_t	bdaddr;			/* unit address */
	uint8_t		page_scan_rep_mode;	/* page scan rep. mode */
	uint8_t		blank;			/* reserved */
	uint8_t		uclass[HCI_CLASS_SIZE];	/* unit class */
	uint16_t	clock_offset;		/* clock offset */
	int8_t		rssi;			/* rssi */
} __attribute__ ((__packed__)) hci_rssi_response;

#define HCI_EVENT_READ_REMOTE_EXTENDED_FEATURES	0x23
typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint16_t	con_handle;	/* connection handle */
	uint8_t		page;		/* page number */
	uint8_t		max;		/* max page number */
	uint8_t		features[HCI_FEATURES_SIZE]; /* LMP features bitmsk*/
} __attribute__ ((__packed__)) hci_read_remote_extended_features_ep;

#define HCI_EVENT_SCO_CON_COMPL			0x2c
typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint16_t	con_handle;	/* connection handle */
	bdaddr_t	bdaddr;		/* unit address */
	uint8_t		link_type;	/* link type */
	uint8_t		interval;	/* transmission interval */
	uint8_t		window;		/* retransmission window */
	uint16_t	rxlen;		/* rx packet length */
	uint16_t	txlen;		/* tx packet length */
	uint8_t		mode;		/* air mode */
} __attribute__ ((__packed__)) hci_sco_con_compl_ep;

#define HCI_EVENT_SCO_CON_CHANGED		0x2d
typedef struct {
	uint8_t		status;		/* 0x00 - success */
	uint16_t	con_handle;	/* connection handle */
	uint8_t		interval;	/* transmission interval */
	uint8_t		window;		/* retransmission window */
	uint16_t	rxlen;		/* rx packet length */
	uint16_t	txlen;		/* tx packet length */
} __attribute__ ((__packed__)) hci_sco_con_changed_ep;

#define HCI_EVENT_BT_LOGO			0xfe

#define HCI_EVENT_VENDOR			0xff

/**************************************************************************
 **************************************************************************
 **                 HCI Socket Definitions
 **************************************************************************
 **************************************************************************/

/* HCI socket options */
#define SO_HCI_EVT_FILTER		1	/* get/set event filter */
#define SO_HCI_PKT_FILTER		2	/* get/set packet filter */
#define SO_HCI_DIRECTION		3	/* packet direction indicator */

/* Control Messages */
#define SCM_HCI_DIRECTION		SO_HCI_DIRECTION

/*
 * HCI socket filter and get/set routines
 *
 * for ease of use, we filter 256 possible events/packets
 */
struct hci_filter {
	uint32_t	mask[8];	/* 256 bits */
};

static __inline void
hci_filter_set(uint8_t bit, struct hci_filter *filter)
{
	uint8_t off = bit - 1;

	off >>= 5;
	filter->mask[off] |= (1 << ((bit - 1) & 0x1f));
}

static __inline void
hci_filter_clr(uint8_t bit, struct hci_filter *filter)
{
	uint8_t off = bit - 1;

	off >>= 5;
	filter->mask[off] &= ~(1 << ((bit - 1) & 0x1f));
}

static __inline int
hci_filter_test(uint8_t bit, struct hci_filter *filter)
{
	uint8_t off = bit - 1;

	off >>= 5;
	return (filter->mask[off] & (1 << ((bit - 1) & 0x1f)));
}

/*
 * HCI socket ioctl's
 *
 * Apart from GBTINFOA, these are all indexed on the unit name
 */

#define SIOCGBTINFO	_IOWR('b',  5, struct btreq) /* get unit info */
#define SIOCGBTINFOA	_IOWR('b',  6, struct btreq) /* get info by address */
#define SIOCNBTINFO	_IOWR('b',  7, struct btreq) /* next unit info */

#define SIOCSBTFLAGS	_IOWR('b',  8, struct btreq) /* set unit flags */
#define SIOCSBTPOLICY	_IOWR('b',  9, struct btreq) /* set unit link policy */
#define SIOCSBTPTYPE	_IOWR('b', 10, struct btreq) /* set unit packet type */

#define SIOCGBTSTATS	_IOWR('b', 11, struct btreq) /* get unit statistics */
#define SIOCZBTSTATS	_IOWR('b', 12, struct btreq) /* zero unit statistics */

#define SIOCBTDUMP	 _IOW('b', 13, struct btreq) /* print debug info */
#define SIOCSBTSCOMTU	_IOWR('b', 17, struct btreq) /* set sco_mtu value */

struct bt_stats {
	uint32_t	err_tx;
	uint32_t	err_rx;
	uint32_t	cmd_tx;
	uint32_t	evt_rx;
	uint32_t	acl_tx;
	uint32_t	acl_rx;
	uint32_t	sco_tx;
	uint32_t	sco_rx;
	uint32_t	byte_tx;
	uint32_t	byte_rx;
};

struct btreq {
	char	btr_name[HCI_DEVNAME_SIZE];	/* device name */

	union {
	    struct {
		bdaddr_t btri_bdaddr;		/* device bdaddr */
		uint16_t btri_flags;		/* flags */
		uint16_t btri_num_cmd;		/* # of free cmd buffers */
		uint16_t btri_num_acl;		/* # of free ACL buffers */
		uint16_t btri_num_sco;		/* # of free SCO buffers */
		uint16_t btri_acl_mtu;		/* ACL mtu */
		uint16_t btri_sco_mtu;		/* SCO mtu */
		uint16_t btri_link_policy;	/* Link Policy */
		uint16_t btri_packet_type;	/* Packet Type */
	    } btri;
	    struct bt_stats btrs;   /* unit stats */
	} btru;
};

#define btr_flags	btru.btri.btri_flags
#define btr_bdaddr	btru.btri.btri_bdaddr
#define btr_num_cmd	btru.btri.btri_num_cmd
#define btr_num_acl	btru.btri.btri_num_acl
#define btr_num_sco	btru.btri.btri_num_sco
#define btr_acl_mtu	btru.btri.btri_acl_mtu
#define btr_sco_mtu	btru.btri.btri_sco_mtu
#define btr_link_policy btru.btri.btri_link_policy
#define btr_packet_type btru.btri.btri_packet_type
#define btr_stats	btru.btrs

/* hci_unit & btr_flags */
#define BTF_UP			(1<<0)	/* unit is up */
#define BTF_RUNNING		(1<<1)	/* unit is running */
#define BTF_XMIT_CMD		(1<<2)	/* unit is transmitting CMD packets */
#define BTF_XMIT_ACL		(1<<3)	/* unit is transmitting ACL packets */
#define BTF_XMIT_SCO		(1<<4)	/* unit is transmitting SCO packets */
#define BTF_XMIT		(BTF_XMIT_CMD | BTF_XMIT_ACL | BTF_XMIT_SCO)
#define BTF_INIT_BDADDR		(1<<5)	/* waiting for bdaddr */
#define BTF_INIT_BUFFER_SIZE	(1<<6)	/* waiting for buffer size */
#define BTF_INIT_FEATURES	(1<<7)	/* waiting for features */
#define BTF_POWER_UP_NOOP	(1<<8)	/* should wait for No-op on power up */
#define BTF_INIT_COMMANDS	(1<<9)	/* waiting for supported commands */

#define BTF_INIT		(BTF_INIT_BDADDR	\
				| BTF_INIT_BUFFER_SIZE	\
				| BTF_INIT_FEATURES	\
				| BTF_INIT_COMMANDS)

/**************************************************************************
 **************************************************************************
 **                 HCI Kernel Definitions
 **************************************************************************
 **************************************************************************/

#ifdef _KERNEL

#include <sys/device.h>

struct l2cap_channel;
struct mbuf;
struct sco_pcb;
struct socket;

/* global HCI kernel variables */

/* sysctl variables */
extern int hci_memo_expiry;
extern int hci_acl_expiry;
extern int hci_sendspace, hci_recvspace;
extern int hci_eventq_max, hci_aclrxq_max, hci_scorxq_max;

/*
 * HCI Connection Information
 */
struct hci_link {
	struct hci_unit		*hl_unit;	/* our unit */
	TAILQ_ENTRY(hci_link)	 hl_next;	/* next link on unit */

	/* common info */
	uint16_t		 hl_state;	/* connection state */
	uint16_t		 hl_flags;	/* link flags */
	bdaddr_t		 hl_bdaddr;	/* dest address */
	uint16_t		 hl_handle;	/* connection handle */
	uint8_t			 hl_type;	/* link type */

	/* ACL link info */
	uint8_t			 hl_lastid;	/* last id used */
	uint16_t		 hl_refcnt;	/* reference count */
	uint16_t		 hl_mtu;	/* signalling mtu for link */
	uint16_t		 hl_flush;	/* flush timeout */
	uint16_t		 hl_clock;	/* remote clock offset */

	TAILQ_HEAD(,l2cap_pdu)	 hl_txq;	/* queue of outgoing PDUs */
	int			 hl_txqlen;	/* number of fragments */
	struct mbuf		*hl_rxp;	/* incoming PDU (accumulating)*/
	callout_t		 hl_expire;	/* connection expiry timer */
	TAILQ_HEAD(,l2cap_req)	 hl_reqs;	/* pending requests */

	/* SCO link info */
	struct hci_link		*hl_link;	/* SCO ACL link */
	struct sco_pcb		*hl_sco;	/* SCO pcb */
	MBUFQ_HEAD()		 hl_data;	/* SCO outgoing data */
};

/* hci_link state */
#define HCI_LINK_CLOSED		0  /* closed */
#define HCI_LINK_WAIT_CONNECT	1  /* waiting to connect */
#define HCI_LINK_WAIT_AUTH	2  /* waiting for auth */
#define HCI_LINK_WAIT_ENCRYPT	3  /* waiting for encrypt */
#define HCI_LINK_WAIT_SECURE	4  /* waiting for secure */
#define HCI_LINK_OPEN		5  /* ready and willing */
#define HCI_LINK_BLOCK		6  /* open but blocking (see hci_acl_start) */

/* hci_link flags */
#define HCI_LINK_AUTH_REQ	(1<<0)  /* authentication requested */
#define HCI_LINK_ENCRYPT_REQ	(1<<1)  /* encryption requested */
#define HCI_LINK_SECURE_REQ	(1<<2)	/* secure link requested */
#define HCI_LINK_AUTH		(1<<3)	/* link is authenticated */
#define HCI_LINK_ENCRYPT	(1<<4)	/* link is encrypted */
#define HCI_LINK_SECURE		(1<<5)	/* link is secured */

/*
 * Bluetooth Memo
 *	cached device information for remote devices that this unit has seen
 */
struct hci_memo {
	struct timeval		time;		/* time of last response */
	bdaddr_t		bdaddr;
	uint8_t			page_scan_rep_mode;
	uint8_t			page_scan_mode;
	uint16_t		clock_offset;
	LIST_ENTRY(hci_memo)	next;
};

/*
 * The Bluetooth HCI interface attachment structure
 */
struct hci_if {
	int	(*enable)(device_t);
	void	(*disable)(device_t);
	void	(*output_cmd)(device_t, struct mbuf *);
	void	(*output_acl)(device_t, struct mbuf *);
	void	(*output_sco)(device_t, struct mbuf *);
	void	(*get_stats)(device_t, struct bt_stats *, int);
	int	ipl;		/* for locking */
};

/*
 * The Bluetooth HCI device unit structure
 */
struct hci_unit {
	device_t	 hci_dev;		/* bthci handle */
	device_t	 hci_bthub;		/* bthub(4) handle */
	const struct hci_if *hci_if;		/* bthci driver interface */

	/* device info */
	bdaddr_t	 hci_bdaddr;		/* device address */
	uint16_t	 hci_flags;		/* see BTF_ above */

	uint16_t	 hci_packet_type;	/* packet types */
	uint16_t	 hci_acl_mask;		/* ACL packet capabilities */
	uint16_t	 hci_sco_mask;		/* SCO packet capabilities */

	uint16_t	 hci_link_policy;	/* link policy */
	uint16_t	 hci_lmp_mask;		/* link policy capabilities */

	uint8_t		 hci_cmds[HCI_COMMANDS_SIZE]; /* opcode bitmask */

	/* flow control */
	uint16_t	 hci_max_acl_size;	/* ACL payload mtu */
	uint16_t	 hci_num_acl_pkts;	/* free ACL packet buffers */
	uint8_t		 hci_num_cmd_pkts;	/* free CMD packet buffers */
	uint8_t		 hci_max_sco_size;	/* SCO payload mtu */
	uint16_t	 hci_num_sco_pkts;	/* free SCO packet buffers */

	TAILQ_HEAD(,hci_link)	hci_links;	/* list of ACL/SCO links */
	LIST_HEAD(,hci_memo)	hci_memos;	/* cached memo list */

	/* input queues */
	void			*hci_rxint;	/* receive interrupt cookie */
	kmutex_t		 hci_devlock;	/* device queue lock */
	MBUFQ_HEAD()		 hci_eventq;	/* Event queue */
	MBUFQ_HEAD()		 hci_aclrxq;	/* ACL rx queue */
	MBUFQ_HEAD()		 hci_scorxq;	/* SCO rx queue */
	uint16_t		 hci_eventqlen;	/* Event queue length */
	uint16_t		 hci_aclrxqlen;	/* ACL rx queue length */
	uint16_t		 hci_scorxqlen;	/* SCO rx queue length */

	/* output queues */
	MBUFQ_HEAD()		 hci_cmdwait;	/* pending commands */
	MBUFQ_HEAD()		 hci_scodone;	/* SCO done queue */

	SIMPLEQ_ENTRY(hci_unit) hci_next;
};

extern SIMPLEQ_HEAD(hci_unit_list, hci_unit) hci_unit_list;

/*
 * HCI layer function prototypes
 */

/* hci_event.c */
void hci_event(struct mbuf *, struct hci_unit *);

/* hci_ioctl.c */
int hci_ioctl(unsigned long, void *, struct lwp *);

/* hci_link.c */
struct hci_link *hci_acl_open(struct hci_unit *, bdaddr_t *);
struct hci_link *hci_acl_newconn(struct hci_unit *, bdaddr_t *);
void hci_acl_close(struct hci_link *, int);
void hci_acl_timeout(void *);
int hci_acl_setmode(struct hci_link *);
void hci_acl_linkmode(struct hci_link *);
void hci_acl_recv(struct mbuf *, struct hci_unit *);
int hci_acl_send(struct mbuf *, struct hci_link *, struct l2cap_channel *);
void hci_acl_start(struct hci_link *);
void hci_acl_complete(struct hci_link *, int);
struct hci_link *hci_sco_newconn(struct hci_unit *, bdaddr_t *);
void hci_sco_recv(struct mbuf *, struct hci_unit *);
void hci_sco_start(struct hci_link *);
void hci_sco_complete(struct hci_link *, int);
struct hci_link *hci_link_alloc(struct hci_unit *);
void hci_link_free(struct hci_link *, int);
struct hci_link *hci_link_lookup_bdaddr(struct hci_unit *, bdaddr_t *, uint16_t);
struct hci_link *hci_link_lookup_handle(struct hci_unit *, uint16_t);

/* hci_misc.c */
int hci_route_lookup(bdaddr_t *, bdaddr_t *);
struct hci_memo *hci_memo_find(struct hci_unit *, bdaddr_t *);
struct hci_memo *hci_memo_new(struct hci_unit *, bdaddr_t *);
void hci_memo_free(struct hci_memo *);

/* hci_socket.c */
void hci_drop(void *);
int hci_usrreq(struct socket *, int, struct mbuf *, struct mbuf *, struct mbuf *, struct lwp *);
int hci_ctloutput(int, struct socket *, int, int, struct mbuf **);
void hci_mtap(struct mbuf *, struct hci_unit *);

/* hci_unit.c */
struct hci_unit *hci_attach(const struct hci_if *, device_t, uint16_t);
void hci_detach(struct hci_unit *);
int hci_enable(struct hci_unit *);
void hci_disable(struct hci_unit *);
struct hci_unit *hci_unit_lookup(bdaddr_t *);
int hci_send_cmd(struct hci_unit *, uint16_t, void *, uint8_t);
bool hci_input_event(struct hci_unit *, struct mbuf *);
bool hci_input_acl(struct hci_unit *, struct mbuf *);
bool hci_input_sco(struct hci_unit *, struct mbuf *);
bool hci_complete_sco(struct hci_unit *, struct mbuf *);
void hci_output_cmd(struct hci_unit *, struct mbuf *);
void hci_output_acl(struct hci_unit *, struct mbuf *);
void hci_output_sco(struct hci_unit *, struct mbuf *);

#endif	/* _KERNEL */

#endif /* _NETBT_HCI_H_ */