/*
 * ng_hci.h
 */

/*-
 * Copyright (c) 2001 Maksim Yevmenkin <m_evmenkin@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: ng_hci.h,v 1.2 2003/03/18 00:09:37 max Exp $
 * $FreeBSD: src/sys/netgraph/bluetooth/include/ng_hci.h,v 1.7 2006/05/17 00:13:06 emax Exp $
 */

/*
 * This file contains everything that application needs to know about
 * Host Controller Interface (HCI). All information was obtained from
 * Bluetooth Specification Book v1.1.
 *
 * 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 _NETGRAPH_HCI_H_
#define _NETGRAPH_HCI_H_

/**************************************************************************
 **************************************************************************
 **     Netgraph node hook name, type name and type cookie and commands
 **************************************************************************
 **************************************************************************/

/* Node type name and type cookie */
#define NG_HCI_NODE_TYPE                        "hci"
#define NGM_HCI_COOKIE                          1000774184

/* Netgraph node hook names */
#define NG_HCI_HOOK_DRV                         "drv" /* Driver <-> HCI */
#define NG_HCI_HOOK_ACL                         "acl" /* HCI <-> Upper */
#define NG_HCI_HOOK_SCO                         "sco" /* HCI <-> Upper */ 
#define NG_HCI_HOOK_RAW                         "raw" /* HCI <-> Upper */ 

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

/* All sizes are in bytes */
#define NG_HCI_BDADDR_SIZE                      6   /* unit address */
#define NG_HCI_LAP_SIZE                         3   /* unit LAP */
#define NG_HCI_KEY_SIZE                         16  /* link key */
#define NG_HCI_PIN_SIZE                         16  /* link PIN */
#define NG_HCI_EVENT_MASK_SIZE                  8   /* event mask */
#define NG_HCI_CLASS_SIZE                       3   /* unit class */
#define NG_HCI_FEATURES_SIZE                    8   /* LMP features */
#define NG_HCI_UNIT_NAME_SIZE                   248 /* unit name size */

/* HCI specification */
#define NG_HCI_SPEC_V10                         0x00 /* v1.0 */
#define NG_HCI_SPEC_V11                         0x01 /* v1.1 */
/* 0x02 - 0xFF - reserved for future use */

/* LMP features */
/* ------------------- byte 0 --------------------*/
#define NG_HCI_LMP_3SLOT                        0x01
#define NG_HCI_LMP_5SLOT                        0x02
#define NG_HCI_LMP_ENCRYPTION                   0x04
#define NG_HCI_LMP_SLOT_OFFSET                  0x08
#define NG_HCI_LMP_TIMING_ACCURACY              0x10
#define NG_HCI_LMP_SWITCH                       0x20
#define NG_HCI_LMP_HOLD_MODE                    0x40
#define NG_HCI_LMP_SNIFF_MODE                   0x80
/* ------------------- byte 1 --------------------*/
#define NG_HCI_LMP_PARK_MODE                    0x01
#define NG_HCI_LMP_RSSI                         0x02
#define NG_HCI_LMP_CHANNEL_QUALITY              0x04
#define NG_HCI_LMP_SCO_LINK                     0x08
#define NG_HCI_LMP_HV2_PKT                      0x10
#define NG_HCI_LMP_HV3_PKT                      0x20
#define NG_HCI_LMP_ULAW_LOG                     0x40
#define NG_HCI_LMP_ALAW_LOG                     0x80
/* ------------------- byte 2 --------------------*/
#define NG_HCI_LMP_CVSD                         0x01
#define NG_HCI_LMP_PAGING_SCHEME                0x02
#define NG_HCI_LMP_POWER_CONTROL                0x04
#define NG_HCI_LMP_TRANSPARENT_SCO              0x08
#define NG_HCI_LMP_FLOW_CONTROL_LAG0            0x10
#define NG_HCI_LMP_FLOW_CONTROL_LAG1            0x20
#define NG_HCI_LMP_FLOW_CONTROL_LAG2            0x40

/* Link types */
#define NG_HCI_LINK_SCO                         0x00 /* Voice */
#define NG_HCI_LINK_ACL                         0x01 /* Data */
/* 0x02 - 0xFF - reserved for future use */

/* Packet types */
                                /* 0x0001 - 0x0004 - reserved for future use */
#define NG_HCI_PKT_DM1                          0x0008 /* ACL link */
#define NG_HCI_PKT_DH1                          0x0010 /* ACL link */
#define NG_HCI_PKT_HV1                          0x0020 /* SCO link */
#define NG_HCI_PKT_HV2                          0x0040 /* SCO link */
#define NG_HCI_PKT_HV3                          0x0080 /* SCO link */
                                /* 0x0100 - 0x0200 - reserved for future use */
#define NG_HCI_PKT_DM3                          0x0400 /* ACL link */
#define NG_HCI_PKT_DH3                          0x0800 /* ACL link */
                                /* 0x1000 - 0x2000 - reserved for future use */
#define NG_HCI_PKT_DM5                          0x4000 /* ACL link */
#define NG_HCI_PKT_DH5                          0x8000 /* ACL link */

/* 
 * 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 :) 
 */

#define NG_HCI_UNIT_MODE_ACTIVE                 0x00
#define NG_HCI_UNIT_MODE_HOLD                   0x01
#define NG_HCI_UNIT_MODE_SNIFF                  0x02
#define NG_HCI_UNIT_MODE_PARK                   0x03
/* 0x04 - 0xFF - reserved for future use */

/* Page scan modes */
#define NG_HCI_MANDATORY_PAGE_SCAN_MODE         0x00
#define NG_HCI_OPTIONAL_PAGE_SCAN_MODE1         0x01
#define NG_HCI_OPTIONAL_PAGE_SCAN_MODE2         0x02
#define NG_HCI_OPTIONAL_PAGE_SCAN_MODE3         0x03
/* 0x04 - 0xFF - reserved for future use */

/* Page scan repetition modes */
#define NG_HCI_SCAN_REP_MODE0                   0x00
#define NG_HCI_SCAN_REP_MODE1                   0x01
#define NG_HCI_SCAN_REP_MODE2                   0x02
/* 0x03 - 0xFF - reserved for future use */

/* Page scan period modes */
#define NG_HCI_PAGE_SCAN_PERIOD_MODE0           0x00
#define NG_HCI_PAGE_SCAN_PERIOD_MODE1           0x01
#define NG_HCI_PAGE_SCAN_PERIOD_MODE2           0x02
/* 0x03 - 0xFF - reserved for future use */

/* Scan enable */
#define NG_HCI_NO_SCAN_ENABLE                   0x00
#define NG_HCI_INQUIRY_ENABLE_PAGE_DISABLE      0x01
#define NG_HCI_INQUIRY_DISABLE_PAGE_ENABLE      0x02
#define NG_HCI_INQUIRY_ENABLE_PAGE_ENABLE       0x03
/* 0x04 - 0xFF - reserved for future use */

/* Hold mode activities */
#define NG_HCI_HOLD_MODE_NO_CHANGE              0x00
#define NG_HCI_HOLD_MODE_SUSPEND_PAGE_SCAN      0x01
#define NG_HCI_HOLD_MODE_SUSPEND_INQUIRY_SCAN   0x02
#define NG_HCI_HOLD_MODE_SUSPEND_PERIOD_INQUIRY 0x04
/* 0x08 - 0x80 - reserved for future use */

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

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

/* Pin types */
#define NG_HCI_PIN_TYPE_VARIABLE                0x00
#define NG_HCI_PIN_TYPE_FIXED                   0x01

/* Link key types */
#define NG_HCI_LINK_KEY_TYPE_COMBINATION_KEY    0x00
#define NG_HCI_LINK_KEY_TYPE_LOCAL_UNIT_KEY     0x01
#define NG_HCI_LINK_KEY_TYPE_REMOTE_UNIT_KEY    0x02
/* 0x03 - 0xFF - reserved for future use */

/* Encryption modes */
#define NG_HCI_ENCRYPTION_MODE_NONE             0x00
#define NG_HCI_ENCRYPTION_MODE_P2P              0x01
#define NG_HCI_ENCRYPTION_MODE_ALL              0x02
/* 0x03 - 0xFF - reserved for future use */

/* Quality of service types */
#define NG_HCI_SERVICE_TYPE_NO_TRAFFIC          0x00
#define NG_HCI_SERVICE_TYPE_BEST_EFFORT         0x01
#define NG_HCI_SERVICE_TYPE_GUARANTEED          0x02
/* 0x03 - 0xFF - reserved for future use */

/* Link policy settings */
#define NG_HCI_LINK_POLICY_DISABLE_ALL_LM_MODES 0x0000
#define NG_HCI_LINK_POLICY_ENABLE_ROLE_SWITCH   0x0001 /* Master/Slave switch */
#define NG_HCI_LINK_POLICY_ENABLE_HOLD_MODE     0x0002
#define NG_HCI_LINK_POLICY_ENABLE_SNIFF_MODE    0x0004
#define NG_HCI_LINK_POLICY_ENABLE_PARK_MODE     0x0008
/* 0x0010 - 0x8000 - reserved for future use */

/* Event masks */
#define NG_HCI_EVMSK_ALL                        0x00000000ffffffff
#define NG_HCI_EVMSK_NONE                       0x0000000000000000
#define NG_HCI_EVMSK_INQUIRY_COMPL              0x0000000000000001
#define NG_HCI_EVMSK_INQUIRY_RESULT             0x0000000000000002
#define NG_HCI_EVMSK_CON_COMPL                  0x0000000000000004
#define NG_HCI_EVMSK_CON_REQ                    0x0000000000000008
#define NG_HCI_EVMSK_DISCON_COMPL               0x0000000000000010
#define NG_HCI_EVMSK_AUTH_COMPL                 0x0000000000000020
#define NG_HCI_EVMSK_REMOTE_NAME_REQ_COMPL      0x0000000000000040
#define NG_HCI_EVMSK_ENCRYPTION_CHANGE          0x0000000000000080
#define NG_HCI_EVMSK_CHANGE_CON_LINK_KEY_COMPL  0x0000000000000100
#define NG_HCI_EVMSK_MASTER_LINK_KEY_COMPL      0x0000000000000200
#define NG_HCI_EVMSK_READ_REMOTE_FEATURES_COMPL 0x0000000000000400
#define NG_HCI_EVMSK_READ_REMOTE_VER_INFO_COMPL 0x0000000000000800
#define NG_HCI_EVMSK_QOS_SETUP_COMPL            0x0000000000001000
#define NG_HCI_EVMSK_COMMAND_COMPL              0x0000000000002000
#define NG_HCI_EVMSK_COMMAND_STATUS             0x0000000000004000
#define NG_HCI_EVMSK_HARDWARE_ERROR             0x0000000000008000
#define NG_HCI_EVMSK_FLUSH_OCCUR                0x0000000000010000
#define NG_HCI_EVMSK_ROLE_CHANGE                0x0000000000020000
#define NG_HCI_EVMSK_NUM_COMPL_PKTS             0x0000000000040000
#define NG_HCI_EVMSK_MODE_CHANGE                0x0000000000080000
#define NG_HCI_EVMSK_RETURN_LINK_KEYS           0x0000000000100000
#define NG_HCI_EVMSK_PIN_CODE_REQ               0x0000000000200000
#define NG_HCI_EVMSK_LINK_KEY_REQ               0x0000000000400000
#define NG_HCI_EVMSK_LINK_KEY_NOTIFICATION      0x0000000000800000
#define NG_HCI_EVMSK_LOOPBACK_COMMAND           0x0000000001000000
#define NG_HCI_EVMSK_DATA_BUFFER_OVERFLOW       0x0000000002000000
#define NG_HCI_EVMSK_MAX_SLOT_CHANGE            0x0000000004000000
#define NG_HCI_EVMSK_READ_CLOCK_OFFSET_COMLETE  0x0000000008000000
#define NG_HCI_EVMSK_CON_PKT_TYPE_CHANGED       0x0000000010000000
#define NG_HCI_EVMSK_QOS_VIOLATION              0x0000000020000000
#define NG_HCI_EVMSK_PAGE_SCAN_MODE_CHANGE      0x0000000040000000
#define NG_HCI_EVMSK_PAGE_SCAN_REP_MODE_CHANGE  0x0000000080000000
/* 0x0000000100000000 - 0x8000000000000000 - reserved for future use */

/* Filter types */
#define NG_HCI_FILTER_TYPE_NONE                 0x00
#define NG_HCI_FILTER_TYPE_INQUIRY_RESULT       0x01
#define NG_HCI_FILTER_TYPE_CON_SETUP            0x02
/* 0x03 - 0xFF - reserved for future use */

/* Filter condition types for NG_HCI_FILTER_TYPE_INQUIRY_RESULT */
#define NG_HCI_FILTER_COND_INQUIRY_NEW_UNIT     0x00
#define NG_HCI_FILTER_COND_INQUIRY_UNIT_CLASS   0x01
#define NG_HCI_FILTER_COND_INQUIRY_BDADDR       0x02
/* 0x03 - 0xFF - reserved for future use */

/* Filter condition types for NG_HCI_FILTER_TYPE_CON_SETUP */
#define NG_HCI_FILTER_COND_CON_ANY_UNIT         0x00
#define NG_HCI_FILTER_COND_CON_UNIT_CLASS       0x01
#define NG_HCI_FILTER_COND_CON_BDADDR           0x02
/* 0x03 - 0xFF - reserved for future use */

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

/* Host to Host Controller flow control */
#define NG_HCI_H2HC_FLOW_CONTROL_NONE           0x00
#define NG_HCI_H2HC_FLOW_CONTROL_ACL            0x01
#define NG_HCI_H2HC_FLOW_CONTROL_SCO            0x02
#define NG_HCI_H2HC_FLOW_CONTROL_BOTH           0x03    /* ACL and SCO */
/* 0x04 - 0xFF - reserved future use */

/* Country codes */
#define NG_HCI_COUNTRY_CODE_NAM_EUR_JP          0x00
#define NG_HCI_COUNTRY_CODE_FRANCE              0x01
/* 0x02 - 0xFF - reserved future use */

/* Loopback modes */
#define NG_HCI_LOOPBACK_NONE                    0x00
#define NG_HCI_LOOPBACK_LOCAL                   0x01
#define NG_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 NG_HCI_OPCODE(gf,cf)            ((((gf) & 0x3f) << 10) | ((cf) & 0x3ff))
#define NG_HCI_OCF(op)                  ((op) & 0x3ff)
#define NG_HCI_OGF(op)                  (((op) >> 10) & 0x3f)

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

#define NG_HCI_CON_HANDLE(h)            ((h) & 0x0fff)
#define NG_HCI_PB_FLAG(h)               (((h) & 0x3000) >> 12)
#define NG_HCI_BC_FLAG(h)               (((h) & 0xc000) >> 14)
#define NG_HCI_MK_CON_HANDLE(h, pb, bc) \
        (((h) & 0x0fff) | (((pb) & 3) << 12) | (((bc) & 3) << 14))

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

/* BC flag values */
#define NG_HCI_POINT2POINT              0x0 /* only Host controller to Host */
#define NG_HCI_BROADCAST_ACTIVE         0x1 /* both directions */
#define NG_HCI_BROADCAST_PICONET        0x2 /* both directions */
                                        /* 11 - reserved for future use */

/* HCI command packet header */
#define NG_HCI_CMD_PKT                  0x01
#define NG_HCI_CMD_PKT_SIZE             0xff /* without header */
typedef struct {
        u_int8_t        type;   /* MUST be 0x1 */
        u_int16_t       opcode; /* OpCode */
        u_int8_t        length; /* parameter(s) length in bytes */
} __attribute__ ((packed)) ng_hci_cmd_pkt_t;

/* ACL data packet header */
#define NG_HCI_ACL_DATA_PKT             0x02
#define NG_HCI_ACL_PKT_SIZE             0xffff /* without header */
typedef struct {
        u_int8_t        type;        /* MUST be 0x2 */
        u_int16_t       con_handle;  /* connection handle + PB + BC flags */
        u_int16_t       length;      /* payload length in bytes */
} __attribute__ ((packed)) ng_hci_acldata_pkt_t;

/* SCO data packet header */
#define NG_HCI_SCO_DATA_PKT             0x03
#define NG_HCI_SCO_PKT_SIZE             0xff /* without header */
typedef struct {
        u_int8_t        type;       /* MUST be 0x3 */
        u_int16_t       con_handle; /* connection handle + reserved bits */
        u_int8_t        length;     /* payload length in bytes */
} __attribute__ ((packed)) ng_hci_scodata_pkt_t;

/* HCI event packet header */
#define NG_HCI_EVENT_PKT                0x04
#define NG_HCI_EVENT_PKT_SIZE           0xff /* without header */
typedef struct {
        u_int8_t        type;   /* MUST be 0x4 */
        u_int8_t        event;  /* event */
        u_int8_t        length; /* parameter(s) length in bytes */
} __attribute__ ((packed)) ng_hci_event_pkt_t;

/* Bluetooth unit address */
typedef struct {
        u_int8_t        b[NG_HCI_BDADDR_SIZE];
} __attribute__ ((packed)) bdaddr_t;
typedef bdaddr_t *      bdaddr_p;

/* Any BD_ADDR. Note: This is actually 7 bytes (count '\0' terminator) */
#define NG_HCI_BDADDR_ANY       ((bdaddr_p) "\000\000\000\000\000\000")

/* HCI status return parameter */
typedef struct {
        u_int8_t        status; /* 0x00 - success */
} __attribute__ ((packed)) ng_hci_status_rp;

/**************************************************************************
 **************************************************************************
 **        Upper layer protocol interface. LP_xxx event parameters
 **************************************************************************
 **************************************************************************/

/* Connection Request Event */
#define NGM_HCI_LP_CON_REQ                      1  /* Upper -> HCI */
typedef struct {
        u_int16_t       link_type; /* type of connection */
        bdaddr_t        bdaddr;    /* remote unit address */
} ng_hci_lp_con_req_ep;

/*
 * XXX XXX XXX
 *
 * NOTE: This request is not defined by Bluetooth specification, 
 * but i find it useful :)
 */
#define NGM_HCI_LP_DISCON_REQ                   2 /* Upper -> HCI */
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       reason;     /* reason to disconnect (only low byte) */
} ng_hci_lp_discon_req_ep;

/* Connection Confirmation Event */
#define NGM_HCI_LP_CON_CFM                      3  /* HCI -> Upper */
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int8_t        link_type;  /* link type */
        u_int16_t       con_handle; /* con_handle */
        bdaddr_t        bdaddr;     /* remote unit address */
} ng_hci_lp_con_cfm_ep;

/* Connection Indication Event */
#define NGM_HCI_LP_CON_IND                      4  /* HCI -> Upper */
typedef struct {
        u_int8_t        link_type;                 /* link type */
        u_int8_t        uclass[NG_HCI_CLASS_SIZE]; /* unit class */
        bdaddr_t        bdaddr;                    /* remote unit address */
} ng_hci_lp_con_ind_ep;

/* Connection Response Event */
#define NGM_HCI_LP_CON_RSP                      5  /* Upper -> HCI */
typedef struct {
        u_int8_t        status;    /* 0x00 - accept connection */
        u_int8_t        link_type; /* link type */
        bdaddr_t        bdaddr;    /* remote unit address */
} ng_hci_lp_con_rsp_ep;

/* Disconnection Indication Event */
#define NGM_HCI_LP_DISCON_IND                   6  /* HCI -> Upper */
typedef struct {
        u_int8_t        reason;     /* reason to disconnect (only low byte) */
        u_int8_t        link_type;  /* link type */
        u_int16_t       con_handle; /* connection handle */
} ng_hci_lp_discon_ind_ep;

/* QoS Setup Request Event */
#define NGM_HCI_LP_QOS_REQ                      7  /* Upper -> HCI */
typedef struct {
        u_int16_t       con_handle;      /* connection handle */
        u_int8_t        flags;           /* reserved */
        u_int8_t        service_type;    /* service type */
        u_int32_t       token_rate;      /* bytes/sec */
        u_int32_t       peak_bandwidth;  /* bytes/sec */
        u_int32_t       latency;         /* msec */
        u_int32_t       delay_variation; /* msec */
} ng_hci_lp_qos_req_ep;

/* QoS Conformition Event */
#define NGM_HCI_LP_QOS_CFM                      8  /* HCI -> Upper */
typedef struct {
        u_int16_t       status;          /* 0x00 - success  (only low byte) */
        u_int16_t       con_handle;      /* connection handle */
} ng_hci_lp_qos_cfm_ep;

/* QoS Violation Indication Event */
#define NGM_HCI_LP_QOS_IND                      9  /* HCI -> Upper */
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} ng_hci_lp_qos_ind_ep;

/**************************************************************************
 **************************************************************************
 **                    HCI node command/event parameters
 **************************************************************************
 **************************************************************************/

/* Debug levels */
#define NG_HCI_ALERT_LEVEL              1
#define NG_HCI_ERR_LEVEL                2
#define NG_HCI_WARN_LEVEL               3
#define NG_HCI_INFO_LEVEL               4

/* Unit states */
#define NG_HCI_UNIT_CONNECTED           (1 << 0)
#define NG_HCI_UNIT_INITED              (1 << 1)
#define NG_HCI_UNIT_READY       (NG_HCI_UNIT_CONNECTED|NG_HCI_UNIT_INITED)
#define NG_HCI_UNIT_COMMAND_PENDING     (1 << 2)

/* Connection state */
#define NG_HCI_CON_CLOSED               0 /* connection closed */
#define NG_HCI_CON_W4_LP_CON_RSP        1 /* wait for LP_ConnectRsp */
#define NG_HCI_CON_W4_CONN_COMPLETE     2 /* wait for Connection_Complete evt */
#define NG_HCI_CON_OPEN                 3 /* connection open */

/* Get HCI node (unit) state (see states above) */
#define NGM_HCI_NODE_GET_STATE                  100  /* HCI -> User */
typedef u_int16_t       ng_hci_node_state_ep;

/* Turn on "inited" bit */
#define NGM_HCI_NODE_INIT                       101 /* User -> HCI */
/* No parameters */

/* Get/Set node debug level (see debug levels above) */
#define NGM_HCI_NODE_GET_DEBUG                  102 /* HCI -> User */
#define NGM_HCI_NODE_SET_DEBUG                  103 /* User -> HCI */
typedef u_int16_t       ng_hci_node_debug_ep;

/* Get node buffer info */
#define NGM_HCI_NODE_GET_BUFFER                 104 /* HCI -> User */
typedef struct {
        u_int8_t        cmd_free; /* number of free command packets */
        u_int8_t        sco_size; /* max. size of SCO packet */
        u_int16_t       sco_pkts; /* number of SCO packets */
        u_int16_t       sco_free; /* number of free SCO packets */
        u_int16_t       acl_size; /* max. size of ACL packet */
        u_int16_t       acl_pkts; /* number of ACL packets */
        u_int16_t       acl_free; /* number of free ACL packets */
} ng_hci_node_buffer_ep;

/* Get BDADDR */
#define NGM_HCI_NODE_GET_BDADDR                 105 /* HCI -> User */
/* bdaddr_t -- BDADDR */

/* Get features */
#define NGM_HCI_NODE_GET_FEATURES               106 /* HCI -> User */
/* features[NG_HCI_FEATURES_SIZE] -- features */

#define NGM_HCI_NODE_GET_STAT                   107 /* HCI -> User */
typedef struct {
        u_int32_t       cmd_sent;   /* number of HCI commands sent */
        u_int32_t       evnt_recv;  /* number of HCI events received */
        u_int32_t       acl_recv;   /* number of ACL packets received */
        u_int32_t       acl_sent;   /* number of ACL packets sent */
        u_int32_t       sco_recv;   /* number of SCO packets received */
        u_int32_t       sco_sent;   /* number of SCO packets sent */
        u_int32_t       bytes_recv; /* total number of bytes received */
        u_int32_t       bytes_sent; /* total number of bytes sent */
} ng_hci_node_stat_ep;

#define NGM_HCI_NODE_RESET_STAT                 108 /* User -> HCI */
/* No parameters */

#define NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE       109 /* User -> HCI */

#define NGM_HCI_NODE_GET_NEIGHBOR_CACHE         110 /* HCI -> User */
typedef struct {
        u_int32_t       num_entries;    /* number of entries */
} ng_hci_node_get_neighbor_cache_ep;

typedef struct {
        u_int16_t       page_scan_rep_mode;             /* page rep scan mode */
        u_int16_t       page_scan_mode;                 /* page scan mode */
        u_int16_t       clock_offset;                   /* clock offset */
        bdaddr_t        bdaddr;                         /* bdaddr */
        u_int8_t        features[NG_HCI_FEATURES_SIZE]; /* features */
} ng_hci_node_neighbor_cache_entry_ep;

#define NG_HCI_MAX_NEIGHBOR_NUM \
        ((0xffff - sizeof(ng_hci_node_get_neighbor_cache_ep))/sizeof(ng_hci_node_neighbor_cache_entry_ep))

#define NGM_HCI_NODE_GET_CON_LIST               111 /* HCI -> User */
typedef struct {
        u_int32_t       num_connections; /* number of connections */
} ng_hci_node_con_list_ep;

typedef struct {
        u_int8_t        link_type;       /* ACL or SCO */
        u_int8_t        encryption_mode; /* none, p2p, ... */
        u_int8_t        mode;            /* ACTIVE, HOLD ... */
        u_int8_t        role;            /* MASTER/SLAVE */
        u_int16_t       state;           /* connection state */
        u_int16_t       reserved;        /* place holder */
        u_int16_t       pending;         /* number of pending packets */
        u_int16_t       queue_len;       /* number of packets in queue */
        u_int16_t       con_handle;      /* connection handle */
        bdaddr_t        bdaddr;          /* remote bdaddr */
} ng_hci_node_con_ep;

#define NG_HCI_MAX_CON_NUM \
        ((0xffff - sizeof(ng_hci_node_con_list_ep))/sizeof(ng_hci_node_con_ep))

#define NGM_HCI_NODE_UP                         112 /* HCI -> Upper */
typedef struct {
        u_int16_t       pkt_size; /* max. ACL/SCO packet size (w/out header) */
        u_int16_t       num_pkts; /* ACL/SCO packet queue size */
        u_int16_t       reserved; /* place holder */
        bdaddr_t        bdaddr;   /* bdaddr */
} ng_hci_node_up_ep;

#define NGM_HCI_SYNC_CON_QUEUE                  113 /* HCI -> Upper */
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       completed;  /* number of completed packets */
} ng_hci_sync_con_queue_ep;

#define NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK      114 /* HCI -> User */
#define NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK      115 /* User -> HCI */
typedef u_int16_t       ng_hci_node_link_policy_mask_ep;

#define NGM_HCI_NODE_GET_PACKET_MASK            116 /* HCI -> User */
#define NGM_HCI_NODE_SET_PACKET_MASK            117 /* User -> HCI */
typedef u_int16_t       ng_hci_node_packet_mask_ep;

#define NGM_HCI_NODE_GET_ROLE_SWITCH            118 /* HCI -> User */
#define NGM_HCI_NODE_SET_ROLE_SWITCH            119 /* User -> HCI */
typedef u_int16_t       ng_hci_node_role_switch_ep;

#define NGM_HCI_NODE_LIST_NAMES                 200 /* HCI -> User */

/**************************************************************************
 **************************************************************************
 **             Link control commands and return parameters
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_LINK_CONTROL                 0x01 /* OpCode Group Field */

#define NG_HCI_OCF_INQUIRY                      0x0001
typedef struct {
        u_int8_t        lap[NG_HCI_LAP_SIZE]; /* LAP */
        u_int8_t        inquiry_length; /* (N x 1.28) sec */
        u_int8_t        num_responses;  /* Max. # of responses before halted */
} __attribute__ ((packed)) ng_hci_inquiry_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_INQUIRY_CANCEL               0x0002
/* No command parameter(s) */
typedef ng_hci_status_rp        ng_hci_inquiry_cancel_rp;

#define NG_HCI_OCF_PERIODIC_INQUIRY             0x0003
typedef struct {
        u_int16_t       max_period_length; /* Max. and min. amount of time */
        u_int16_t       min_period_length; /* between consecutive inquiries */
        u_int8_t        lap[NG_HCI_LAP_SIZE]; /* LAP */
        u_int8_t        inquiry_length;    /* (inquiry_length * 1.28) sec */
        u_int8_t        num_responses;     /* Max. # of responses */
} __attribute__ ((packed)) ng_hci_periodic_inquiry_cp;

typedef ng_hci_status_rp        ng_hci_periodic_inquiry_rp;
        
#define NG_HCI_OCF_EXIT_PERIODIC_INQUIRY        0x0004
/* No command parameter(s) */
typedef ng_hci_status_rp        ng_hci_exit_periodic_inquiry_rp;

#define NG_HCI_OCF_CREATE_CON                   0x0005
typedef struct {
        bdaddr_t        bdaddr;             /* destination address */
        u_int16_t       pkt_type;           /* packet type */
        u_int8_t        page_scan_rep_mode; /* page scan repetition mode */
        u_int8_t        page_scan_mode;     /* page scan mode */
        u_int16_t       clock_offset;       /* clock offset */
        u_int8_t        accept_role_switch; /* accept role switch? 0x00 - no */
} __attribute__ ((packed)) ng_hci_create_con_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_DISCON                       0x0006
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int8_t        reason;     /* reason to disconnect */
} __attribute__ ((packed)) ng_hci_discon_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_ADD_SCO_CON                  0x0007
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       pkt_type;   /* packet type */
} __attribute__ ((packed)) ng_hci_add_sco_con_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_ACCEPT_CON                   0x0009
typedef struct {
        bdaddr_t        bdaddr; /* address of unit to be connected */
        u_int8_t        role;   /* connection role */
} __attribute__ ((packed)) ng_hci_accept_con_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_REJECT_CON                   0x000a
typedef struct {
        bdaddr_t        bdaddr; /* remote address */
        u_int8_t        reason; /* reason to reject */
} __attribute__ ((packed)) ng_hci_reject_con_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_LINK_KEY_REP                 0x000b
typedef struct {
        bdaddr_t        bdaddr;               /* remote address */
        u_int8_t        key[NG_HCI_KEY_SIZE]; /* key */
} __attribute__ ((packed)) ng_hci_link_key_rep_cp;

typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* unit address */
} __attribute__ ((packed)) ng_hci_link_key_rep_rp;

#define NG_HCI_OCF_LINK_KEY_NEG_REP             0x000c
typedef struct {
        bdaddr_t        bdaddr; /* remote address */
} __attribute__ ((packed)) ng_hci_link_key_neg_rep_cp;

typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* unit address */
} __attribute__ ((packed)) ng_hci_link_key_neg_rep_rp;

#define NG_HCI_OCF_PIN_CODE_REP                 0x000d
typedef struct {
        bdaddr_t        bdaddr;               /* remote address */
        u_int8_t        pin_size;             /* pin code length (in bytes) */
        u_int8_t        pin[NG_HCI_PIN_SIZE]; /* pin code */
} __attribute__ ((packed)) ng_hci_pin_code_rep_cp;

typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* unit address */
} __attribute__ ((packed)) ng_hci_pin_code_rep_rp;

#define NG_HCI_OCF_PIN_CODE_NEG_REP             0x000e
typedef struct {
        bdaddr_t        bdaddr;  /* remote address */
} __attribute__ ((packed)) ng_hci_pin_code_neg_rep_cp;

typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* unit address */
} __attribute__ ((packed)) ng_hci_pin_code_neg_rep_rp;

#define NG_HCI_OCF_CHANGE_CON_PKT_TYPE          0x000f
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       pkt_type;   /* packet type */
} __attribute__ ((packed)) ng_hci_change_con_pkt_type_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_AUTH_REQ                     0x0011
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_auth_req_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_SET_CON_ENCRYPTION           0x0013
typedef struct {
        u_int16_t       con_handle;        /* connection handle */
        u_int8_t        encryption_enable; /* 0x00 - disable, 0x01 - enable */
} __attribute__ ((packed)) ng_hci_set_con_encryption_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_CHANGE_CON_LINK_KEY          0x0015
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_change_con_link_key_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_MASTER_LINK_KEY              0x0017
typedef struct {
        u_int8_t        key_flag; /* key flag */
} __attribute__ ((packed)) ng_hci_master_link_key_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_REMOTE_NAME_REQ              0x0019
typedef struct {
        bdaddr_t        bdaddr;             /* remote address */
        u_int8_t        page_scan_rep_mode; /* page scan repetition mode */
        u_int8_t        page_scan_mode;     /* page scan mode */
        u_int16_t       clock_offset;       /* clock offset */
} __attribute__ ((packed)) ng_hci_remote_name_req_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_READ_REMOTE_FEATURES         0x001b
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_remote_features_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_READ_REMOTE_VER_INFO         0x001d
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_remote_ver_info_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_READ_CLOCK_OFFSET             0x001f
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_clock_offset_cp;
/* No return parameter(s) */

/**************************************************************************
 **************************************************************************
 **        Link policy commands and return parameters
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_LINK_POLICY                  0x02 /* OpCode Group Field */

#define NG_HCI_OCF_HOLD_MODE                    0x0001
typedef struct {
        u_int16_t       con_handle;   /* connection handle */
        u_int16_t       max_interval; /* (max_interval * 0.625) msec */
        u_int16_t       min_interval; /* (max_interval * 0.625) msec */
} __attribute__ ((packed)) ng_hci_hold_mode_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_SNIFF_MODE                   0x0003
typedef struct {
        u_int16_t       con_handle;   /* connection handle */
        u_int16_t       max_interval; /* (max_interval * 0.625) msec */
        u_int16_t       min_interval; /* (max_interval * 0.625) msec */
        u_int16_t       attempt;      /* (2 * attempt - 1) * 0.625 msec */
        u_int16_t       timeout;      /* (2 * attempt - 1) * 0.625 msec */
} __attribute__ ((packed)) ng_hci_sniff_mode_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_EXIT_SNIFF_MODE              0x0004
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_exit_sniff_mode_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_PARK_MODE                    0x0005
typedef struct {
        u_int16_t       con_handle;   /* connection handle */
        u_int16_t       max_interval; /* (max_interval * 0.625) msec */
        u_int16_t       min_interval; /* (max_interval * 0.625) msec */
} __attribute__ ((packed)) ng_hci_park_mode_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_EXIT_PARK_MODE               0x0006
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_exit_park_mode_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_QOS_SETUP                    0x0007
typedef struct {
        u_int16_t       con_handle;      /* connection handle */
        u_int8_t        flags;           /* reserved for future use */
        u_int8_t        service_type;    /* service type */
        u_int32_t       token_rate;      /* bytes per second */
        u_int32_t       peak_bandwidth;  /* bytes per second */
        u_int32_t       latency;         /* microseconds */
        u_int32_t       delay_variation; /* microseconds */
} __attribute__ ((packed)) ng_hci_qos_setup_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_ROLE_DISCOVERY               0x0009
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_role_discovery_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int8_t        role;       /* role for the connection handle */
} __attribute__ ((packed)) ng_hci_role_discovery_rp;

#define NG_HCI_OCF_SWITCH_ROLE                  0x000b
typedef struct {
        bdaddr_t        bdaddr; /* remote address */
        u_int8_t        role;   /* new local role */
} __attribute__ ((packed)) ng_hci_switch_role_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_READ_LINK_POLICY_SETTINGS    0x000c
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_link_policy_settings_cp;
        
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       settings;   /* link policy settings */
} __attribute__ ((packed)) ng_hci_read_link_policy_settings_rp;

#define NG_HCI_OCF_WRITE_LINK_POLICY_SETTINGS   0x000d
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       settings;   /* link policy settings */
} __attribute__ ((packed)) ng_hci_write_link_policy_settings_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_write_link_policy_settings_rp;

/**************************************************************************
 **************************************************************************
 **   Host controller and baseband commands and return parameters 
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_HC_BASEBAND                  0x03 /* OpCode Group Field */

#define NG_HCI_OCF_SET_EVENT_MASK               0x0001
typedef struct {
        u_int8_t        event_mask[NG_HCI_EVENT_MASK_SIZE]; /* event_mask */
} __attribute__ ((packed)) ng_hci_set_event_mask_cp;

typedef ng_hci_status_rp        ng_hci_set_event_mask_rp;

#define NG_HCI_OCF_RESET                        0x0003
/* No command parameter(s) */
typedef ng_hci_status_rp        ng_hci_reset_rp;

#define NG_HCI_OCF_SET_EVENT_FILTER             0x0005
typedef struct {
        u_int8_t        filter_type;           /* filter type */
        u_int8_t        filter_condition_type; /* filter condition type */
        u_int8_t        condition[0];          /* conditions - variable size */
} __attribute__ ((packed)) ng_hci_set_event_filter_cp;

typedef ng_hci_status_rp        ng_hci_set_event_filter_rp;

#define NG_HCI_OCF_FLUSH                        0x0008
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_flush_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_flush_rp;

#define NG_HCI_OCF_READ_PIN_TYPE                0x0009
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;   /* 0x00 - success */
        u_int8_t        pin_type; /* PIN type */
} __attribute__ ((packed)) ng_hci_read_pin_type_rp;

#define NG_HCI_OCF_WRITE_PIN_TYPE               0x000a
typedef struct {
        u_int8_t        pin_type; /* PIN type */
} __attribute__ ((packed)) ng_hci_write_pin_type_cp;

typedef ng_hci_status_rp        ng_hci_write_pin_type_rp;

#define NG_HCI_OCF_CREATE_NEW_UNIT_KEY          0x000b
/* No command parameter(s) */
typedef ng_hci_status_rp        ng_hci_create_new_unit_key_rp;

#define NG_HCI_OCF_READ_STORED_LINK_KEY         0x000d
typedef struct {
        bdaddr_t        bdaddr;   /* address */
        u_int8_t        read_all; /* read all keys? 0x01 - yes */
} __attribute__ ((packed)) ng_hci_read_stored_link_key_cp;

typedef struct {
        u_int8_t        status;        /* 0x00 - success */
        u_int16_t       max_num_keys;  /* Max. number of keys */
        u_int16_t       num_keys_read; /* Number of stored keys */
} __attribute__ ((packed)) ng_hci_read_stored_link_key_rp;

#define NG_HCI_OCF_WRITE_STORED_LINK_KEY        0x0011
typedef struct {
        u_int8_t        num_keys_write; /* # of keys to write */
/* these are repeated "num_keys_write" times 
        bdaddr_t        bdaddr;                --- remote address(es)
        u_int8_t        key[NG_HCI_KEY_SIZE];  --- key(s) */
} __attribute__ ((packed)) ng_hci_write_stored_link_key_cp;

typedef struct {
        u_int8_t        status;           /* 0x00 - success */
        u_int8_t        num_keys_written; /* # of keys successfully written */
} __attribute__ ((packed)) ng_hci_write_stored_link_key_rp;

#define NG_HCI_OCF_DELETE_STORED_LINK_KEY       0x0012
typedef struct {
        bdaddr_t        bdaddr;     /* address */
        u_int8_t        delete_all; /* delete all keys? 0x01 - yes */
} __attribute__ ((packed)) ng_hci_delete_stored_link_key_cp;

typedef struct {
        u_int8_t        status;           /* 0x00 - success */
        u_int16_t       num_keys_deleted; /* Number of keys deleted */
} __attribute__ ((packed)) ng_hci_delete_stored_link_key_rp;

#define NG_HCI_OCF_CHANGE_LOCAL_NAME            0x0013
typedef struct {
        char            name[NG_HCI_UNIT_NAME_SIZE]; /* new unit name */
} __attribute__ ((packed)) ng_hci_change_local_name_cp;

typedef ng_hci_status_rp        ng_hci_change_local_name_rp;

#define NG_HCI_OCF_READ_LOCAL_NAME              0x0014
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;  /* 0x00 - success */
        char            name[NG_HCI_UNIT_NAME_SIZE]; /* unit name */
} __attribute__ ((packed)) ng_hci_read_local_name_rp;

#define NG_HCI_OCF_READ_CON_ACCEPT_TIMO         0x0015
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;  /* 0x00 - success */
        u_int16_t       timeout; /* (timeout * 0.625) msec */
} __attribute__ ((packed)) ng_hci_read_con_accept_timo_rp;

#define NG_HCI_OCF_WRITE_CON_ACCEPT_TIMO        0x0016
typedef struct {
        u_int16_t       timeout; /* (timeout * 0.625) msec */
} __attribute__ ((packed)) ng_hci_write_con_accept_timo_cp;

typedef ng_hci_status_rp        ng_hci_write_con_accept_timo_rp;

#define NG_HCI_OCF_READ_PAGE_TIMO               0x0017
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;  /* 0x00 - success */
        u_int16_t       timeout; /* (timeout * 0.625) msec */
} __attribute__ ((packed)) ng_hci_read_page_timo_rp;

#define NG_HCI_OCF_WRITE_PAGE_TIMO              0x0018
typedef struct {
        u_int16_t       timeout; /* (timeout * 0.625) msec */
} __attribute__ ((packed)) ng_hci_write_page_timo_cp;

typedef ng_hci_status_rp        ng_hci_write_page_timo_rp;

#define NG_HCI_OCF_READ_SCAN_ENABLE             0x0019
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;      /* 0x00 - success */
        u_int8_t        scan_enable; /* Scan enable */
} __attribute__ ((packed)) ng_hci_read_scan_enable_rp;

#define NG_HCI_OCF_WRITE_SCAN_ENABLE            0x001a
typedef struct {
        u_int8_t        scan_enable; /* Scan enable */
} __attribute__ ((packed)) ng_hci_write_scan_enable_cp;

typedef ng_hci_status_rp        ng_hci_write_scan_enable_rp;

#define NG_HCI_OCF_READ_PAGE_SCAN_ACTIVITY      0x001b
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;             /* 0x00 - success */
        u_int16_t       page_scan_interval; /* interval * 0.625 msec */
        u_int16_t       page_scan_window;   /* window * 0.625 msec */
} __attribute__ ((packed)) ng_hci_read_page_scan_activity_rp;

#define NG_HCI_OCF_WRITE_PAGE_SCAN_ACTIVITY     0x001c
typedef struct {
        u_int16_t       page_scan_interval; /* interval * 0.625 msec */
        u_int16_t       page_scan_window;   /* window * 0.625 msec */
} __attribute__ ((packed)) ng_hci_write_page_scan_activity_cp;

typedef ng_hci_status_rp        ng_hci_write_page_scan_activity_rp;

#define NG_HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY   0x001d
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;                /* 0x00 - success */
        u_int16_t       inquiry_scan_interval; /* interval * 0.625 msec */
        u_int16_t       inquiry_scan_window;   /* window * 0.625 msec */
} __attribute__ ((packed)) ng_hci_read_inquiry_scan_activity_rp;

#define NG_HCI_OCF_WRITE_INQUIRY_SCAN_ACTIVITY  0x001e
typedef struct {
        u_int16_t       inquiry_scan_interval; /* interval * 0.625 msec */
        u_int16_t       inquiry_scan_window;   /* window * 0.625 msec */
} __attribute__ ((packed)) ng_hci_write_inquiry_scan_activity_cp;

typedef ng_hci_status_rp        ng_hci_write_inquiry_scan_activity_rp;

#define NG_HCI_OCF_READ_AUTH_ENABLE             0x001f
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;      /* 0x00 - success */
        u_int8_t        auth_enable; /* 0x01 - enabled */
} __attribute__ ((packed)) ng_hci_read_auth_enable_rp;

#define NG_HCI_OCF_WRITE_AUTH_ENABLE            0x0020
typedef struct {
        u_int8_t        auth_enable; /* 0x01 - enabled */
} __attribute__ ((packed)) ng_hci_write_auth_enable_cp;

typedef ng_hci_status_rp        ng_hci_write_auth_enable_rp;

#define NG_HCI_OCF_READ_ENCRYPTION_MODE         0x0021
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;          /* 0x00 - success */
        u_int8_t        encryption_mode; /* encryption mode */
} __attribute__ ((packed)) ng_hci_read_encryption_mode_rp;

#define NG_HCI_OCF_WRITE_ENCRYPTION_MODE        0x0022
typedef struct {
        u_int8_t        encryption_mode; /* encryption mode */
} __attribute__ ((packed)) ng_hci_write_encryption_mode_cp;

typedef ng_hci_status_rp        ng_hci_write_encryption_mode_rp;

#define NG_HCI_OCF_READ_UNIT_CLASS              0x0023
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;                    /* 0x00 - success */
        u_int8_t        uclass[NG_HCI_CLASS_SIZE]; /* unit class */
} __attribute__ ((packed)) ng_hci_read_unit_class_rp;

#define NG_HCI_OCF_WRITE_UNIT_CLASS             0x0024
typedef struct {
        u_int8_t        uclass[NG_HCI_CLASS_SIZE]; /* unit class */
} __attribute__ ((packed)) ng_hci_write_unit_class_cp;

typedef ng_hci_status_rp        ng_hci_write_unit_class_rp;

#define NG_HCI_OCF_READ_VOICE_SETTINGS          0x0025
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;   /* 0x00 - success */
        u_int16_t       settings; /* voice settings */
} __attribute__ ((packed)) ng_hci_read_voice_settings_rp;

#define NG_HCI_OCF_WRITE_VOICE_SETTINGS         0x0026
typedef struct {
        u_int16_t       settings; /* voice settings */
} __attribute__ ((packed)) ng_hci_write_voice_settings_cp;

typedef ng_hci_status_rp        ng_hci_write_voice_settings_rp;

#define NG_HCI_OCF_READ_AUTO_FLUSH_TIMO         0x0027
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_auto_flush_timo_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       timeout;    /* 0x00 - no flush, timeout * 0.625 msec */
} __attribute__ ((packed)) ng_hci_read_auto_flush_timo_rp;
        
#define NG_HCI_OCF_WRITE_AUTO_FLUSH_TIMO        0x0028
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       timeout;    /* 0x00 - no flush, timeout * 0.625 msec */
} __attribute__ ((packed)) ng_hci_write_auto_flush_timo_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_write_auto_flush_timo_rp;

#define NG_HCI_OCF_READ_NUM_BROADCAST_RETRANS   0x0029
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;  /* 0x00 - success */
        u_int8_t        counter; /* number of broadcast retransmissions */
} __attribute__ ((packed)) ng_hci_read_num_broadcast_retrans_rp;

#define NG_HCI_OCF_WRITE_NUM_BROADCAST_RETRANS  0x002a
typedef struct {
        u_int8_t        counter; /* number of broadcast retransmissions */
} __attribute__ ((packed)) ng_hci_write_num_broadcast_retrans_cp;

typedef ng_hci_status_rp        ng_hci_write_num_broadcast_retrans_rp;

#define NG_HCI_OCF_READ_HOLD_MODE_ACTIVITY      0x002b
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;             /* 0x00 - success */
        u_int8_t        hold_mode_activity; /* Hold mode activities */
} __attribute__ ((packed)) ng_hci_read_hold_mode_activity_rp;

#define NG_HCI_OCF_WRITE_HOLD_MODE_ACTIVITY     0x002c
typedef struct {
        u_int8_t        hold_mode_activity; /* Hold mode activities */
} __attribute__ ((packed)) ng_hci_write_hold_mode_activity_cp;

typedef ng_hci_status_rp        ng_hci_write_hold_mode_activity_rp;

#define NG_HCI_OCF_READ_XMIT_LEVEL              0x002d
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int8_t        type;       /* Xmit level type */
} __attribute__ ((packed)) ng_hci_read_xmit_level_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        char            level;      /* -30 <= level <= 30 dBm */
} __attribute__ ((packed)) ng_hci_read_xmit_level_rp;

#define NG_HCI_OCF_READ_SCO_FLOW_CONTROL        0x002e
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;       /* 0x00 - success */
        u_int8_t        flow_control; /* 0x00 - disabled */
} __attribute__ ((packed)) ng_hci_read_sco_flow_control_rp;

#define NG_HCI_OCF_WRITE_SCO_FLOW_CONTROL       0x002f
typedef struct {
        u_int8_t        flow_control; /* 0x00 - disabled */
} __attribute__ ((packed)) ng_hci_write_sco_flow_control_cp;

typedef ng_hci_status_rp        ng_hci_write_sco_flow_control_rp;

#define NG_HCI_OCF_H2HC_FLOW_CONTROL            0x0031
typedef struct {
        u_int8_t        h2hc_flow; /* Host to Host controller flow control */
} __attribute__ ((packed)) ng_hci_h2hc_flow_control_cp;

typedef ng_hci_status_rp        ng_hci_h2hc_flow_control_rp;

#define NG_HCI_OCF_HOST_BUFFER_SIZE             0x0033
typedef struct {
        u_int16_t       max_acl_size; /* Max. size of ACL packet (bytes) */
        u_int8_t        max_sco_size; /* Max. size of SCO packet (bytes) */
        u_int16_t       num_acl_pkt;  /* Max. number of ACL packets */
        u_int16_t       num_sco_pkt;  /* Max. number of SCO packets */
} __attribute__ ((packed)) ng_hci_host_buffer_size_cp;

typedef ng_hci_status_rp        ng_hci_host_buffer_size_rp;

#define NG_HCI_OCF_HOST_NUM_COMPL_PKTS          0x0035
typedef struct {
        u_int8_t        num_con_handles; /* # of connection handles */
/* these are repeated "num_con_handles" times
        u_int16_t       con_handle; --- connection handle(s)
        u_int16_t       compl_pkt;  --- # of completed packets */
} __attribute__ ((packed)) ng_hci_host_num_compl_pkts_cp;
/* No return parameter(s) */

#define NG_HCI_OCF_READ_LINK_SUPERVISION_TIMO   0x0036
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_link_supervision_timo_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       timeout;    /* Link supervision timeout * 0.625 msec */
} __attribute__ ((packed)) ng_hci_read_link_supervision_timo_rp;

#define NG_HCI_OCF_WRITE_LINK_SUPERVISION_TIMO  0x0037
typedef struct {
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       timeout;    /* Link supervision timeout * 0.625 msec */
} __attribute__ ((packed)) ng_hci_write_link_supervision_timo_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_write_link_supervision_timo_rp;

#define NG_HCI_OCF_READ_SUPPORTED_IAC_NUM       0x0038
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;  /* 0x00 - success */
        u_int8_t        num_iac; /* # of supported IAC during scan */
} __attribute__ ((packed)) ng_hci_read_supported_iac_num_rp;

#define NG_HCI_OCF_READ_IAC_LAP                 0x0039
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;  /* 0x00 - success */
        u_int8_t        num_iac; /* # of IAC */
/* these are repeated "num_iac" times 
        u_int8_t        laps[NG_HCI_LAP_SIZE]; --- LAPs */
} __attribute__ ((packed)) ng_hci_read_iac_lap_rp;

#define NG_HCI_OCF_WRITE_IAC_LAP                0x003a
typedef struct {
        u_int8_t        num_iac; /* # of IAC */
/* these are repeated "num_iac" times 
        u_int8_t        laps[NG_HCI_LAP_SIZE]; --- LAPs */
} __attribute__ ((packed)) ng_hci_write_iac_lap_cp;

typedef ng_hci_status_rp        ng_hci_write_iac_lap_rp;

#define NG_HCI_OCF_READ_PAGE_SCAN_PERIOD        0x003b
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;                /* 0x00 - success */
        u_int8_t        page_scan_period_mode; /* Page scan period mode */
} __attribute__ ((packed)) ng_hci_read_page_scan_period_rp;

#define NG_HCI_OCF_WRITE_PAGE_SCAN_PERIOD       0x003c
typedef struct {
        u_int8_t        page_scan_period_mode; /* Page scan period mode */
} __attribute__ ((packed)) ng_hci_write_page_scan_period_cp;

typedef ng_hci_status_rp        ng_hci_write_page_scan_period_rp;

#define NG_HCI_OCF_READ_PAGE_SCAN               0x003d
/* No command parameter(s) */
typedef struct {
        u_int8_t        status;         /* 0x00 - success */
        u_int8_t        page_scan_mode; /* Page scan mode */
} __attribute__ ((packed)) ng_hci_read_page_scan_rp;

#define NG_HCI_OCF_WRITE_PAGE_SCAN              0x003e
typedef struct {
        u_int8_t        page_scan_mode; /* Page scan mode */
} __attribute__ ((packed)) ng_hci_write_page_scan_cp;

typedef ng_hci_status_rp        ng_hci_write_page_scan_rp;

/**************************************************************************
 **************************************************************************
 **           Informational commands and return parameters 
 **     All commands in this category do not accept any parameters
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_INFO                         0x04 /* OpCode Group Field */

#define NG_HCI_OCF_READ_LOCAL_VER               0x0001
typedef struct {
        u_int8_t        status;         /* 0x00 - success */
        u_int8_t        hci_version;    /* HCI version */
        u_int16_t       hci_revision;   /* HCI revision */
        u_int8_t        lmp_version;    /* LMP version */
        u_int16_t       manufacturer;   /* Hardware manufacturer name */
        u_int16_t       lmp_subversion; /* LMP sub-version */
} __attribute__ ((packed)) ng_hci_read_local_ver_rp;

#define NG_HCI_OCF_READ_LOCAL_FEATURES          0x0003
typedef struct {
        u_int8_t        status;                         /* 0x00 - success */
        u_int8_t        features[NG_HCI_FEATURES_SIZE]; /* LMP features bitmsk*/
} __attribute__ ((packed)) ng_hci_read_local_features_rp;

#define NG_HCI_OCF_READ_BUFFER_SIZE             0x0005
typedef struct {
        u_int8_t        status;       /* 0x00 - success */
        u_int16_t       max_acl_size; /* Max. size of ACL packet (bytes) */
        u_int8_t        max_sco_size; /* Max. size of SCO packet (bytes) */
        u_int16_t       num_acl_pkt;  /* Max. number of ACL packets */
        u_int16_t       num_sco_pkt;  /* Max. number of SCO packets */
} __attribute__ ((packed)) ng_hci_read_buffer_size_rp;

#define NG_HCI_OCF_READ_COUNTRY_CODE            0x0007
typedef struct {
        u_int8_t        status;       /* 0x00 - success */
        u_int8_t        country_code; /* 0x00 - NAM, EUR, JP; 0x01 - France */
} __attribute__ ((packed)) ng_hci_read_country_code_rp;

#define NG_HCI_OCF_READ_BDADDR                  0x0009
typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* unit address */
} __attribute__ ((packed)) ng_hci_read_bdaddr_rp;

/**************************************************************************
 **************************************************************************
 **            Status commands and return parameters 
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_STATUS                       0x05 /* OpCode Group Field */

#define NG_HCI_OCF_READ_FAILED_CONTACT_CNTR     0x0001
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_failed_contact_cntr_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       counter;    /* number of consecutive failed contacts */
} __attribute__ ((packed)) ng_hci_read_failed_contact_cntr_rp;

#define NG_HCI_OCF_RESET_FAILED_CONTACT_CNTR    0x0002
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_reset_failed_contact_cntr_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_reset_failed_contact_cntr_rp;

#define NG_HCI_OCF_GET_LINK_QUALITY             0x0003
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_get_link_quality_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int8_t        quality;    /* higher value means better quality */
} __attribute__ ((packed)) ng_hci_get_link_quality_rp;

#define NG_HCI_OCF_READ_RSSI                    0x0005
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_read_rssi_cp;

typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        char            rssi;       /* -127 <= rssi <= 127 dB */
} __attribute__ ((packed)) ng_hci_read_rssi_rp;

/**************************************************************************
 **************************************************************************
 **             Testing commands and return parameters 
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_TESTING                      0x06 /* OpCode Group Field */

#define NG_HCI_OCF_READ_LOOPBACK_MODE           0x0001
/* No command parameter(s) */
typedef struct {
        u_int8_t        status; /* 0x00 - success */
        u_int8_t        lbmode; /* loopback mode */
} __attribute__ ((packed)) ng_hci_read_loopback_mode_rp;

#define NG_HCI_OCF_WRITE_LOOPBACK_MODE          0x0002
typedef struct {
        u_int8_t        lbmode; /* loopback mode */
} __attribute__ ((packed)) ng_hci_write_loopback_mode_cp;

typedef ng_hci_status_rp        ng_hci_write_loopback_mode_rp;

#define NG_HCI_OCF_ENABLE_UNIT_UNDER_TEST       0x0003
/* No command parameter(s) */
typedef ng_hci_status_rp        ng_hci_enable_unit_under_test_rp;

/**************************************************************************
 **************************************************************************
 **                Special HCI OpCode group field values
 **************************************************************************
 **************************************************************************/

#define NG_HCI_OGF_BT_LOGO                      0x3e    

#define NG_HCI_OGF_VENDOR                       0x3f

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

#define NG_HCI_EVENT_INQUIRY_COMPL              0x01
typedef struct {
        u_int8_t        status; /* 0x00 - success */
} __attribute__ ((packed)) ng_hci_inquiry_compl_ep;

#define NG_HCI_EVENT_INQUIRY_RESULT             0x02
typedef struct {
        u_int8_t        num_responses;      /* number of responses */
/*      ng_hci_inquiry_response[num_responses]   -- see below */
} __attribute__ ((packed)) ng_hci_inquiry_result_ep;

typedef struct {
        bdaddr_t        bdaddr;                   /* unit address */
        u_int8_t        page_scan_rep_mode;       /* page scan rep. mode */
        u_int8_t        page_scan_period_mode;    /* page scan period mode */
        u_int8_t        page_scan_mode;           /* page scan mode */
        u_int8_t        uclass[NG_HCI_CLASS_SIZE];/* unit class */
        u_int16_t       clock_offset;             /* clock offset */
} __attribute__ ((packed)) ng_hci_inquiry_response;

#define NG_HCI_EVENT_CON_COMPL                  0x03
typedef struct {
        u_int8_t        status;          /* 0x00 - success */
        u_int16_t       con_handle;      /* Connection handle */
        bdaddr_t        bdaddr;          /* remote unit address */
        u_int8_t        link_type;       /* Link type */
        u_int8_t        encryption_mode; /* Encryption mode */
} __attribute__ ((packed)) ng_hci_con_compl_ep;

#define NG_HCI_EVENT_CON_REQ                    0x04
typedef struct {
        bdaddr_t        bdaddr;                    /* remote unit address */
        u_int8_t        uclass[NG_HCI_CLASS_SIZE]; /* remote unit class */
        u_int8_t        link_type;                 /* link type */
} __attribute__ ((packed)) ng_hci_con_req_ep;

#define NG_HCI_EVENT_DISCON_COMPL               0x05
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int8_t        reason;     /* reason to disconnect */
} __attribute__ ((packed)) ng_hci_discon_compl_ep;

#define NG_HCI_EVENT_AUTH_COMPL                 0x06
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_auth_compl_ep;

#define NG_HCI_EVENT_REMOTE_NAME_REQ_COMPL      0x7
typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* remote unit address */
        char            name[NG_HCI_UNIT_NAME_SIZE]; /* remote unit name */
} __attribute__ ((packed)) ng_hci_remote_name_req_compl_ep;

#define NG_HCI_EVENT_ENCRYPTION_CHANGE          0x08
typedef struct {
        u_int8_t        status;            /* 0x00 - success */
        u_int16_t       con_handle;        /* Connection handle */
        u_int8_t        encryption_enable; /* 0x00 - disable */
} __attribute__ ((packed)) ng_hci_encryption_change_ep;

#define NG_HCI_EVENT_CHANGE_CON_LINK_KEY_COMPL  0x09
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* Connection handle */
} __attribute__ ((packed)) ng_hci_change_con_link_key_compl_ep;

#define NG_HCI_EVENT_MASTER_LINK_KEY_COMPL      0x0a
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* Connection handle */
        u_int8_t        key_flag;   /* Key flag */
} __attribute__ ((packed)) ng_hci_master_link_key_compl_ep;

#define NG_HCI_EVENT_READ_REMOTE_FEATURES_COMPL 0x0b
typedef struct {
        u_int8_t        status;                         /* 0x00 - success */
        u_int16_t       con_handle;                     /* Connection handle */
        u_int8_t        features[NG_HCI_FEATURES_SIZE]; /* LMP features bitmsk*/
} __attribute__ ((packed)) ng_hci_read_remote_features_compl_ep;

#define NG_HCI_EVENT_READ_REMOTE_VER_INFO_COMPL 0x0c
typedef struct {
        u_int8_t        status;         /* 0x00 - success */
        u_int16_t       con_handle;     /* Connection handle */
        u_int8_t        lmp_version;    /* LMP version */
        u_int16_t       manufacturer;   /* Hardware manufacturer name */
        u_int16_t       lmp_subversion; /* LMP sub-version */
} __attribute__ ((packed)) ng_hci_read_remote_ver_info_compl_ep;

#define NG_HCI_EVENT_QOS_SETUP_COMPL            0x0d
typedef struct {
        u_int8_t        status;          /* 0x00 - success */
        u_int16_t       con_handle;      /* connection handle */
        u_int8_t        flags;           /* reserved for future use */
        u_int8_t        service_type;    /* service type */
        u_int32_t       token_rate;      /* bytes per second */
        u_int32_t       peak_bandwidth;  /* bytes per second */
        u_int32_t       latency;         /* microseconds */
        u_int32_t       delay_variation; /* microseconds */
} __attribute__ ((packed)) ng_hci_qos_setup_compl_ep;

#define NG_HCI_EVENT_COMMAND_COMPL              0x0e
typedef struct {
        u_int8_t        num_cmd_pkts; /* # of HCI command packets */
        u_int16_t       opcode;       /* command OpCode */
        /* command return parameters (if any) */
} __attribute__ ((packed)) ng_hci_command_compl_ep;

#define NG_HCI_EVENT_COMMAND_STATUS             0x0f
typedef struct {
        u_int8_t        status;       /* 0x00 - pending */
        u_int8_t        num_cmd_pkts; /* # of HCI command packets */
        u_int16_t       opcode;       /* command OpCode */
} __attribute__ ((packed)) ng_hci_command_status_ep;

#define NG_HCI_EVENT_HARDWARE_ERROR             0x10
typedef struct {
        u_int8_t        hardware_code; /* hardware error code */
} __attribute__ ((packed)) ng_hci_hardware_error_ep;

#define NG_HCI_EVENT_FLUSH_OCCUR                0x11
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_flush_occur_ep;

#define NG_HCI_EVENT_ROLE_CHANGE                0x12
typedef struct {
        u_int8_t        status; /* 0x00 - success */
        bdaddr_t        bdaddr; /* address of remote unit */
        u_int8_t        role;   /* new connection role */
} __attribute__ ((packed)) ng_hci_role_change_ep;

#define NG_HCI_EVENT_NUM_COMPL_PKTS             0x13
typedef struct {
        u_int8_t        num_con_handles; /* # of connection handles */
/* these are repeated "num_con_handles" times 
        u_int16_t       con_handle; --- connection handle(s)
        u_int16_t       compl_pkt;  --- # of completed packets */
} __attribute__ ((packed)) ng_hci_num_compl_pkts_ep;

#define NG_HCI_EVENT_MODE_CHANGE                0x14
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int8_t        unit_mode;  /* remote unit mode */
        u_int16_t       interval;   /* interval * 0.625 msec */
} __attribute__ ((packed)) ng_hci_mode_change_ep;

#define NG_HCI_EVENT_RETURN_LINK_KEYS           0x15
typedef struct {
        u_int8_t        num_keys; /* # of keys */
/* these are repeated "num_keys" times 
        bdaddr_t        bdaddr;               --- remote address(es)
        u_int8_t        key[NG_HCI_KEY_SIZE]; --- key(s) */
} __attribute__ ((packed)) ng_hci_return_link_keys_ep;

#define NG_HCI_EVENT_PIN_CODE_REQ               0x16
typedef struct {
        bdaddr_t        bdaddr; /* remote unit address */
} __attribute__ ((packed)) ng_hci_pin_code_req_ep;

#define NG_HCI_EVENT_LINK_KEY_REQ               0x17
typedef struct {
        bdaddr_t        bdaddr; /* remote unit address */
} __attribute__ ((packed)) ng_hci_link_key_req_ep;

#define NG_HCI_EVENT_LINK_KEY_NOTIFICATION      0x18
typedef struct {
        bdaddr_t        bdaddr;               /* remote unit address */
        u_int8_t        key[NG_HCI_KEY_SIZE]; /* link key */
        u_int8_t        key_type;             /* type of the key */
} __attribute__ ((packed)) ng_hci_link_key_notification_ep;

#define NG_HCI_EVENT_LOOPBACK_COMMAND           0x19
typedef struct {
        u_int8_t        command[0]; /* Command packet */
} __attribute__ ((packed)) ng_hci_loopback_command_ep;

#define NG_HCI_EVENT_DATA_BUFFER_OVERFLOW       0x1a
typedef struct {
        u_int8_t        link_type; /* Link type */
} __attribute__ ((packed)) ng_hci_data_buffer_overflow_ep;

#define NG_HCI_EVENT_MAX_SLOT_CHANGE            0x1b
typedef struct {
        u_int16_t       con_handle;    /* connection handle */
        u_int8_t        lmp_max_slots; /* Max. # of slots allowed */
} __attribute__ ((packed)) ng_hci_max_slot_change_ep;

#define NG_HCI_EVENT_READ_CLOCK_OFFSET_COMPL    0x1c
typedef struct {
        u_int8_t        status;       /* 0x00 - success */
        u_int16_t       con_handle;   /* Connection handle */
        u_int16_t       clock_offset; /* Clock offset */
} __attribute__ ((packed)) ng_hci_read_clock_offset_compl_ep;

#define NG_HCI_EVENT_CON_PKT_TYPE_CHANGED       0x1d
typedef struct {
        u_int8_t        status;     /* 0x00 - success */
        u_int16_t       con_handle; /* connection handle */
        u_int16_t       pkt_type;   /* packet type */
} __attribute__ ((packed)) ng_hci_con_pkt_type_changed_ep;

#define NG_HCI_EVENT_QOS_VIOLATION              0x1e
typedef struct {
        u_int16_t       con_handle; /* connection handle */
} __attribute__ ((packed)) ng_hci_qos_violation_ep;

#define NG_HCI_EVENT_PAGE_SCAN_MODE_CHANGE      0x1f
typedef struct {
        bdaddr_t        bdaddr;         /* destination address */
        u_int8_t        page_scan_mode; /* page scan mode */
} __attribute__ ((packed)) ng_hci_page_scan_mode_change_ep;

#define NG_HCI_EVENT_PAGE_SCAN_REP_MODE_CHANGE  0x20
typedef struct {
        bdaddr_t        bdaddr;             /* destination address */
        u_int8_t        page_scan_rep_mode; /* page scan repetition mode */
} __attribute__ ((packed)) ng_hci_page_scan_rep_mode_change_ep;

#define NG_HCI_EVENT_BT_LOGO                    0xfe

#define NG_HCI_EVENT_VENDOR                     0xff

#endif /* ndef _NETGRAPH_HCI_H_ */