FreeBSD/Linux Kernel Cross Reference
sys/netbt/hci.h

     /*      $NetBSD: hci.h,v 1.46 2019/09/28 07:06:33 plunky 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@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 1.46 2019/09/28 07:06:33 plunky 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, v2.0, v2.1 + EDR, v3.0 + HS,
     * v4.0 and v4.2)
     *
     * 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>
    
    #include <sys/ioccom.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 /* v1.0b */
   #define HCI_SPEC_V11                    0x01 /* v1.1 */
   #define HCI_SPEC_V12                    0x02 /* v1.2 */
   #define HCI_SPEC_V20                    0x03 /* v2.0 + EDR */
   #define HCI_SPEC_V21                    0x04 /* v2.1 + EDR */
   #define HCI_SPEC_V30                    0x05 /* v3.0 + HS */
   #define HCI_SPEC_V40                    0x06 /* v4.0 */
   #define HCI_SPEC_V41                    0x07 /* v4.1 */
   #define HCI_SPEC_V42                    0x08 /* v4.2 */
   #define HCI_SPEC_V50                    0x09 /* v5.0 */
   /* 0x0A - 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
   #define HCI_LMP_BR_EDR_UNSUPPORTED      0x20
   #define HCI_LMP_LE_CONTROLLER           0x40
   #define HCI_LMP_3SLOT_EDR_ACL           0x80
   /* ------------------- byte 5 --------------------*/
   #define HCI_LMP_5SLOT_EDR_ACL           0x01
   #define HCI_LMP_SNIFF_SUBRATING         0x02
   #define HCI_LMP_PAUSE_ENCRYPTION        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 --------------------*/
   #define HCI_LMP_EXTENDED_INQUIRY        0x01
   #define HCI_LMP_LE_BR_EDR_CONTROLLER    0x02
   /* reserved                             0x04 */
   #define HCI_LMP_SIMPLE_PAIRING          0x08
   #define HCI_LMP_ENCAPSULATED_PDU        0x10
   #define HCI_LMP_ERRDATA_REPORTING       0x20
   #define HCI_LMP_NOFLUSH_PB_FLAG         0x40
   /* reserved                             0x80 */
   /* ------------------- byte 7 --------------------*/
   #define HCI_LMP_LINK_SUPERVISION_TO     0x01
   #define HCI_LMP_INQ_RSP_TX_POWER        0x02
   #define HCI_LMP_ENHANCED_POWER_CONTROL  0x04
   #define HCI_LMP_EXTENDED_FEATURES       0x80
   
   /* page 1 of extended features */
   /* ------------------- byte 0 --------------------*/
   #define HCI_LMP_SSP                     0x01
   #define HCI_LMP_LE_HOST                 0x02
   #define HCI_LMP_LE_BR_EDR_HOST          0x04
   #define HCI_LMP_SECURE_CONN_HOST        0x08
   
   /* page 2 of extended features */
   /* ------------------- byte 0 --------------------*/
   #define HCI_LMP_CONNLESS_MASTER         0x01
   #define HCI_LMP_CONNLESS_SLAVE          0x02
   #define HCI_LMP_SYNC_TRAIN              0x04
   #define HCI_LMP_SYNC_SCAN               0x08
   #define HCI_LMP_INQ_RSP_NOTIFY          0x10
   #define HCI_LMP_INTERLACE_SCAN          0x20
   #define HCI_LMP_COARSE_CLOCK            0x40
   /* reserved                             0x80 */
   /* ------------------- byte 0 --------------------*/
   #define HCI_LMP_SECURE_CONN_CONTROLLER  0x01
   #define HCI_LMP_PING                    0x02
   /* reserved                             0x04 */
   #define HCI_LMP_TRAIN_NUDGING           0x08
   
   /* 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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __packed hci_create_con_cancel_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* destination address */
   } __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 */
   } __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 */
   } __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 */
   } __packed hci_link_key_rep_cp;
   
   typedef struct {
           uint8_t         status; /* 0x00 - success */
           bdaddr_t        bdaddr; /* unit address */
   } __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 */
   } __packed hci_link_key_neg_rep_cp;
   
   typedef struct {
           uint8_t         status; /* 0x00 - success */
           bdaddr_t        bdaddr; /* unit address */
   } __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 */
   } __packed hci_pin_code_rep_cp;
   
   typedef struct {
           uint8_t         status; /* 0x00 - success */
           bdaddr_t        bdaddr; /* unit address */
   } __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 */
   } __packed hci_pin_code_neg_rep_cp;
   
   typedef struct {
           uint8_t         status; /* 0x00 - success */
           bdaddr_t        bdaddr; /* unit address */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __packed hci_remote_name_req_cancel_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __packed hci_reject_sco_con_req_cp;
   /* No return parameter(s) */
   
   #define HCI_OCF_IO_CAPABILITY_REP                       0x002b
   #define HCI_CMD_IO_CAPABILITY_REP                       0x042a
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
           uint8_t         io_cap;         /* IO capability */
           uint8_t         oob_data;       /* OOB data present */
           uint8_t         auth_req;       /* auth requirements */
   } __packed hci_io_capability_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_io_capability_rep_rp;
   
   #define HCI_OCF_USER_CONFIRM_REP                        0x002c
   #define HCI_CMD_USER_CONFIRM_REP                        0x042c
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_confirm_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_confirm_rep_rp;
   
   #define HCI_OCF_USER_CONFIRM_NEG_REP                    0x002d
   #define HCI_CMD_USER_CONFIRM_NEG_REP                    0x042d
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_confirm_neg_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_confirm_neg_rep_rp;
   
   #define HCI_OCF_USER_PASSKEY_REP                        0x002e
   #define HCI_CMD_USER_PASSKEY_REP                        0x042e
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
           uint32_t        value;          /* 000000 - 999999 */
   } __packed hci_user_passkey_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_passkey_rep_rp;
   
   #define HCI_OCF_USER_PASSKEY_NEG_REP                    0x002f
   #define HCI_CMD_USER_PASSKEY_NEG_REP                    0x042f
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_passkey_neg_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_passkey_neg_rep_rp;
   
   #define HCI_OCF_OOB_DATA_REP                            0x0030
   #define HCI_CMD_OOB_DATA_REP                            0x0430
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
           uint8_t         c[16];          /* pairing hash */
           uint8_t         r[16];          /* pairing randomizer */
   } __packed hci_user_oob_data_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_oob_data_rep_rp;
   
   #define HCI_OCF_OOB_DATA_NEG_REP                        0x0033
   #define HCI_CMD_OOB_DATA_NEG_REP                        0x0433
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_oob_data_neg_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_user_oob_data_neg_rep_rp;
   
   #define HCI_OCF_IO_CAPABILITY_NEG_REP                   0x0034
   #define HCI_CMD_IO_CAPABILITY_NEG_REP                   0x0434
   typedef struct {
           bdaddr_t        bdaddr;         /* remote address */
           uint8_t         reason;         /* error code */
   } __packed hci_io_capability_neg_rep_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           bdaddr_t        bdaddr;         /* remote address */
   } __packed hci_io_capability_neg_rep_rp;
   
   /**************************************************************************
    **************************************************************************
    ** 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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __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 */
   } __packed hci_write_link_policy_settings_cp;
   
   typedef struct {
           uint8_t         status;     /* 0x00 - success */
           uint16_t        con_handle; /* connection handle */
   } __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 */
   } __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 */
   } __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;
   } __packed hci_flow_specification_cp;
   /* No return parameter(s) */
   
   #define HCI_OCF_SNIFF_SUBRATING                         0x0011
   #define HCI_CMD_SNIFF_SUBRATING                         0x0810
   typedef struct {
           uint16_t        con_handle;     /* connection handle */
           uint16_t        max_latency;
           uint16_t        max_timeout;    /* max remote timeout */
           uint16_t        min_timeout;    /* min local timeout */
   } __packed hci_sniff_subrating_cp;
   
   typedef struct {
           uint8_t         status;         /* 0x00 - success */
           uint16_t        con_handle;     /* connection handle */
   } __packed hci_sniff_subrating_rp;
   
  /**************************************************************************
   **************************************************************************
   ** 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 */
  } __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 */
  } __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 */
  } __packed hci_flush_cp;
  
  typedef struct {
          uint8_t         status;     /* 0x00 - success */
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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) */
  } __packed hci_write_stored_link_key_cp;
  
  typedef struct {
          uint8_t         status;           /* 0x00 - success */
          uint8_t         num_keys_written; /* # of keys successfully written */
  } __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 */
  } __packed hci_delete_stored_link_key_cp;
  
  typedef struct {
          uint8_t         status;           /* 0x00 - success */
          uint16_t        num_keys_deleted; /* Number of keys deleted */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_write_auth_enable_cp;
  
  typedef hci_status_rp   hci_write_auth_enable_rp;
  
  /* Read Encryption Mode is deprecated */
  #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 */
  } __packed hci_read_encryption_mode_rp;
  
  /* Write Encryption Mode is deprecated */
  #define HCI_OCF_WRITE_ENCRYPTION_MODE                   0x0022
  #define HCI_CMD_WRITE_ENCRYPTION_MODE                   0x0C22
  typedef struct {
          uint8_t         encryption_mode; /* encryption mode */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_write_auto_flush_timeout_cp;
  
  typedef struct {
          uint8_t         status;     /* 0x00 - success */
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_write_link_supervision_timeout_cp;
  
  typedef struct {
          uint8_t         status;     /* 0x00 - success */
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_write_iac_lap_cp;
  
  typedef hci_status_rp   hci_write_iac_lap_rp;
  
  /* Read Page Scan Period Mode is deprecated */
  #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 */
  } __packed hci_read_page_scan_period_rp;
  
  /* Write Page Scan Period Mode is deprecated */
  #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 */
  } __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 */
  } __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 */
  } __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];
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_write_afh_assessment_cp;
  
  typedef hci_status_rp   hci_write_afh_assessment_rp;
  
  #define HCI_OCF_READ_EXTENDED_INQUIRY_RSP               0x0051
  #define HCI_CMD_READ_EXTENDED_INQUIRY_RSP               0x0C51
  /* No command parameter(s) */
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint8_t         fec_required;
          uint8_t         response[240];
  } __packed hci_read_extended_inquiry_rsp_rp;
  
  #define HCI_OCF_WRITE_EXTENDED_INQUIRY_RSP              0x0052
  #define HCI_CMD_WRITE_EXTENDED_INQUIRY_RSP              0x0C52
  typedef struct {
          uint8_t         fec_required;
          uint8_t         response[240];
  } __packed hci_write_extended_inquiry_rsp_cp;
  
  typedef hci_status_rp   hci_write_extended_inquiry_rsp_rp;
  
  #define HCI_OCF_REFRESH_ENCRYPTION_KEY                  0x0053
  #define HCI_CMD_REFRESH_ENCRYPTION_KEY                  0x0C53
  typedef struct {
          uint16_t        con_handle;     /* connection handle */
  } __packed hci_refresh_encryption_key_cp;
  
  typedef hci_status_rp   hci_refresh_encryption_key_rp;
  
  #define HCI_OCF_READ_SIMPLE_PAIRING_MODE                0x0055
  #define HCI_CMD_READ_SIMPLE_PAIRING_MODE                0x0C55
  /* No command parameter(s) */
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint8_t         mode;           /* simple pairing mode */
  } __packed hci_read_simple_pairing_mode_rp;
  
  #define HCI_OCF_WRITE_SIMPLE_PAIRING_MODE               0x0056
  #define HCI_CMD_WRITE_SIMPLE_PAIRING_MODE               0x0C56
  typedef struct {
          uint8_t         mode;           /* simple pairing mode */
  } __packed hci_write_simple_pairing_mode_cp;
  
  typedef hci_status_rp   hci_write_simple_pairing_mode_rp;
  
  #define HCI_OCF_READ_LOCAL_OOB_DATA                     0x0057
  #define HCI_CMD_READ_LOCAL_OOB_DATA                     0x0C57
  /* No command parameter(s) */
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint8_t         c[16];          /* pairing hash */
          uint8_t         r[16];          /* pairing randomizer */
  } __packed hci_read_local_oob_data_rp;
  
  #define HCI_OCF_READ_INQUIRY_RSP_XMIT_POWER             0x0058
  #define HCI_CMD_READ_INQUIRY_RSP_XMIT_POWER             0x0C58
  /* No command parameter(s) */
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          int8_t          power;          /* TX power */
  } __packed hci_read_inquiry_rsp_xmit_power_rp;
  
  #define HCI_OCF_WRITE_INQUIRY_RSP_XMIT_POWER            0x0059
  #define HCI_CMD_WRITE_INQUIRY_RSP_XMIT_POWER            0x0C59
  typedef struct {
          int8_t          power;          /* TX power */
  } __packed hci_write_inquiry_rsp_xmit_power_cp;
  
  typedef hci_status_rp   hci_write_inquiry_rsp_xmit_power_rp;
  
  #define HCI_OCF_READ_DEFAULT_ERRDATA_REPORTING          0x005A
  #define HCI_CMD_READ_DEFAULT_ERRDATA_REPORTING          0x0C5A
  /* No command parameter(s) */
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint8_t         reporting;      /* erroneous data reporting */
  } __packed hci_read_default_errdata_reporting_rp;
  
  #define HCI_OCF_WRITE_DEFAULT_ERRDATA_REPORTING         0x005B
  #define HCI_CMD_WRITE_DEFAULT_ERRDATA_REPORTING         0x0C5B
  typedef struct {
          uint8_t         reporting;      /* erroneous data reporting */
  } __packed hci_write_default_errdata_reporting_cp;
  
  typedef hci_status_rp   hci_write_default_errdata_reporting_rp;
  
  #define HCI_OCF_ENHANCED_FLUSH                          0x005F
  #define HCI_CMD_ENHANCED_FLUSH                          0x0C5F
  typedef struct {
          uint16_t        con_handle;     /* connection handle */
          uint8_t         packet_type;
  } __packed hci_enhanced_flush_cp;
  
  /* No response parameter(s) */
  
  #define HCI_OCF_SEND_KEYPRESS_NOTIFICATION              0x0060
  #define HCI_CMD_SEND_KEYPRESS_NOTIFICATION              0x0C60
  typedef struct {
          bdaddr_t        bdaddr;         /* remote address */
          uint8_t         type;           /* notification type */
  } __packed hci_send_keypress_notification_cp;
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          bdaddr_t        bdaddr;         /* remote address */
  } __packed hci_send_keypress_notification_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 */
  } __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 */
  } __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*/
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_reset_failed_contact_cntr_cp;
  
  typedef struct {
          uint8_t         status;     /* 0x00 - success */
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_read_rssi_cp;
  
  typedef struct {
          uint8_t         status;     /* 0x00 - success */
          uint16_t        con_handle; /* connection handle */
          char            rssi;       /* -127 <= rssi <= 127 dB */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_read_clock_rp;
  
  #define HCI_OCF_READ_ENCRYPTION_KEY_SIZE                0x0008
  #define HCI_CMD_READ_ENCRYPTION_KEY_SIZE                0x1408
  typedef struct {
          uint16_t        con_handle;     /* connection handle */
  } __packed hci_read_encryption_key_size_cp;
  
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint16_t        con_handle;     /* connection handle */
          uint8_t         size;           /* key size */
  } __packed hci_read_encryption_key_size_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 */
  } __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 */
  } __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;
  
  #define HCI_OCF_WRITE_SIMPLE_PAIRING_DEBUG_MODE         0x0004
  #define HCI_CMD_WRITE_SIMPLE_PAIRING_DEBUG_MODE         0x1804
  typedef struct {
          uint8_t         mode;   /* simple pairing debug mode */
  } __packed hci_write_simple_pairing_debug_mode_cp;
  
  typedef hci_status_rp   hci_write_simple_pairing_debug_mode_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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_discon_compl_ep;
  
  #define HCI_EVENT_AUTH_COMPL                    0x06
  typedef struct {
          uint8_t         status;     /* 0x00 - success */
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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*/
  } __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 */
  } __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 */
  } __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) */
  } __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 */
  } __packed hci_command_status_ep;
  
  #define HCI_EVENT_HARDWARE_ERROR                0x10
  typedef struct {
          uint8_t         hardware_code; /* hardware error code */
  } __packed hci_hardware_error_ep;
  
  #define HCI_EVENT_FLUSH_OCCUR                   0x11
  typedef struct {
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __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) */
  } __packed hci_return_link_keys_ep;
  
  #define HCI_EVENT_PIN_CODE_REQ                  0x16
  typedef struct {
          bdaddr_t        bdaddr; /* remote unit address */
  } __packed hci_pin_code_req_ep;
  
  #define HCI_EVENT_LINK_KEY_REQ                  0x17
  typedef struct {
          bdaddr_t        bdaddr; /* remote unit address */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __packed hci_con_pkt_type_changed_ep;
  
  #define HCI_EVENT_QOS_VIOLATION                 0x1e
  typedef struct {
          uint16_t        con_handle; /* connection handle */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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 */
  } __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*/
  } __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 */
  } __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 */
  } __packed hci_sco_con_changed_ep;
  
  #define HCI_EVENT_SNIFF_SUBRATING               0x2e
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint16_t        con_handle;     /* connection handle */
          uint16_t        tx_latency;     /* max transmit latency */
          uint16_t        rx_latency;     /* max receive latency */
          uint16_t        remote_timeout; /* remote timeout */
          uint16_t        local_timeout;  /* local timeout */
  } __packed hci_sniff_subrating_ep;
  
  #define HCI_EVENT_EXTENDED_RESULT               0x2f
  typedef struct {
          uint8_t         num_responses;  /* must be 0x01 */
          bdaddr_t        bdaddr;         /* remote device address */
          uint8_t         page_scan_rep_mode;
          uint8_t         reserved;
          uint8_t         uclass[HCI_CLASS_SIZE];
          uint16_t        clock_offset;
          int8_t          rssi;
          uint8_t         response[240];  /* extended inquiry response */
  } __packed hci_extended_result_ep;
  
  #define HCI_EVENT_ENCRYPTION_KEY_REFRESH        0x30
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          uint16_t        con_handle;     /* connection handle */
  } __packed hci_encryption_key_refresh_ep;
  
  #define HCI_EVENT_IO_CAPABILITY_REQ             0x31
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
  } __packed hci_io_capability_req_ep;
  
  #define HCI_EVENT_IO_CAPABILITY_RSP             0x32
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
          uint8_t         io_capability;
          uint8_t         oob_data_present;
          uint8_t         auth_requirement;
  } __packed hci_io_capability_rsp_ep;
  
  #define HCI_EVENT_USER_CONFIRM_REQ              0x33
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
          uint32_t        value;          /* 000000 - 999999 */
  } __packed hci_user_confirm_req_ep;
  
  #define HCI_EVENT_USER_PASSKEY_REQ              0x34
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
  } __packed hci_user_passkey_req_ep;
  
  #define HCI_EVENT_REMOTE_OOB_DATA_REQ           0x35
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
  } __packed hci_remote_oob_data_req_ep;
  
  #define HCI_EVENT_SIMPLE_PAIRING_COMPL          0x36
  typedef struct {
          uint8_t         status;         /* 0x00 - success */
          bdaddr_t        bdaddr;         /* remote device address */
  } __packed hci_simple_pairing_compl_ep;
  
  #define HCI_EVENT_LINK_SUPERVISION_TO_CHANGED   0x38
  typedef struct {
          uint16_t        con_handle;     /* connection handle */
          uint16_t        timeout;        /* link supervision timeout */
  } __packed hci_link_supervision_to_changed_ep;
  
  #define HCI_EVENT_ENHANCED_FLUSH_COMPL          0x39
  typedef struct {
          uint16_t        con_handle;     /* connection handle */
  } __packed hci_enhanced_flush_compl_ep;
  
  #define HCI_EVENT_USER_PASSKEY_NOTIFICATION     0x3b
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
          uint32_t        value;          /* 000000 - 999999 */
  } __packed hci_user_passkey_notification_ep;
  
  #define HCI_EVENT_KEYPRESS_NOTIFICATION         0x3c
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
          uint8_t         notification_type;
  } __packed hci_keypress_notification_ep;
  
  #define HCI_EVENT_REMOTE_FEATURES_NOTIFICATION  0x3d
  typedef struct {
          bdaddr_t        bdaddr;         /* remote device address */
          uint8_t         features[HCI_FEATURES_SIZE]; /* LMP features bitmsk*/
  } __packed hci_remote_features_notification_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 = (uint8_t)((bit - 1) >> 5);
          uint8_t sh = (uint8_t)((bit - 1) & 0x1f);
  
          filter->mask[off] |= 1U << sh;
  }
  
  static __inline void
  hci_filter_clr(uint8_t bit, struct hci_filter *filter)
  {
          uint8_t off = (uint8_t)((bit - 1) >> 5);
          uint8_t sh = (uint8_t)((bit - 1) & 0x1f);
  
          filter->mask[off] &= ~(1U << sh);
  }
  
  static __inline int
  hci_filter_test(uint8_t bit, const struct hci_filter *filter)
  {
          uint8_t off = (uint8_t)((bit - 1) >> 5);
          uint8_t sh = (uint8_t)((bit - 1) & 0x1f);
  
          return (int)((filter->mask[off] >> sh) & 1U);
  }
  
  /*
   * 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 */
  
  #define SIOCGBTFEAT     _IOWR('b', 18, struct btreq) /* get unit features */
  
  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 */
                  uint16_t btri_max_acl;          /* max ACL buffers */
                  uint16_t btri_max_sco;          /* max SCO buffers */
              } btri;
              struct {
                  uint8_t btrf_page0[HCI_FEATURES_SIZE];  /* basic */
                  uint8_t btrf_page1[HCI_FEATURES_SIZE];  /* extended */
                  uint8_t btrf_page2[HCI_FEATURES_SIZE];  /* extended */
              } btrf;
              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_max_acl     btru.btri.btri_max_acl
  #define btr_max_sco     btru.btri.btri_max_sco
  #define btr_features0   btru.btrf.btrf_page0
  #define btr_features1   btru.btrf.btrf_page1
  #define btr_features2   btru.btrf.btrf_page2
  #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_MASTER              (1<<10) /* request Master role */
  
  #define BTF_INIT                (BTF_INIT_BDADDR        \
                                  | BTF_INIT_BUFFER_SIZE  \
                                  | BTF_INIT_FEATURES     \
                                  | BTF_INIT_COMMANDS)
  
  /**************************************************************************
   **************************************************************************
   **                 HCI Kernel Definitions
   **************************************************************************
   **************************************************************************/
  
  #ifdef _KERNEL
  
  #include <sys/condvar.h>
  #include <sys/device.h>
  
  struct l2cap_channel;
  struct mbuf;
  struct sco_pcb;
  struct socket;
  struct sockopt;
  
  /* 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 */
  #define HCI_LINK_CREATE_CON     (1<<6)  /* "Create Connection" pending */
  
  /*
   * 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 */
          kcondvar_t       hci_init;              /* sleep on this */
  
          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_feat0[HCI_FEATURES_SIZE]; /* features mask */
          uint8_t          hci_feat1[HCI_FEATURES_SIZE]; /* extended page 1 */
          uint8_t          hci_feat2[HCI_FEATURES_SIZE]; /* extended page 2 */
          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 */
          uint16_t         hci_max_acl_pkts;      /* max 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 */
          uint16_t         hci_max_sco_pkts;      /* max 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_pcb(unsigned long, void *);
  
  /* 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 *, bdaddr_t *, uint8_t);
  void hci_link_free(struct hci_link *, int);
  struct hci_link *hci_link_lookup_bdaddr(struct hci_unit *, bdaddr_t *, uint8_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 *);
  void hci_init(void);
  int hci_ctloutput(int, struct socket *, struct sockopt *);
  void hci_mtap(struct mbuf *, struct hci_unit *);
  
  /* hci_unit.c */
  struct hci_unit *hci_attach_pcb(const struct hci_if *, device_t, uint16_t);
  void hci_detach_pcb(struct hci_unit *);
  int hci_enable(struct hci_unit *);
  void hci_disable(struct hci_unit *);
  struct hci_unit *hci_unit_lookup(const bdaddr_t *);
  int hci_send_cmd(struct hci_unit *, uint16_t, void *, uint8_t);
  void hci_num_cmds(struct hci_unit *, 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_ */

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