/* 
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2000-2001 Qualcomm Incorporated

   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 as
   published by the Free Software Foundation;

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
   SOFTWARE IS DISCLAIMED.
*/

#ifndef __HCI_H
#define __HCI_H

#define HCI_MAX_ACL_SIZE        1024
#define HCI_MAX_SCO_SIZE        255
#define HCI_MAX_EVENT_SIZE      260
#define HCI_MAX_FRAME_SIZE      (HCI_MAX_ACL_SIZE + 4)

/* HCI dev events */
#define HCI_DEV_REG                     1
#define HCI_DEV_UNREG                   2
#define HCI_DEV_UP                      3
#define HCI_DEV_DOWN                    4
#define HCI_DEV_SUSPEND                 5
#define HCI_DEV_RESUME                  6

/* HCI notify events */
#define HCI_NOTIFY_CONN_ADD             1
#define HCI_NOTIFY_CONN_DEL             2
#define HCI_NOTIFY_VOICE_SETTING        3

/* HCI device types */
#define HCI_VIRTUAL     0
#define HCI_USB         1
#define HCI_PCCARD      2
#define HCI_UART        3
#define HCI_RS232       4
#define HCI_PCI         5
#define HCI_SDIO        6

/* HCI device quirks */
enum {
        HCI_QUIRK_NO_RESET,
        HCI_QUIRK_RAW_DEVICE,
        HCI_QUIRK_FIXUP_BUFFER_SIZE
};

/* HCI device flags */
enum {
        HCI_UP,
        HCI_INIT,
        HCI_RUNNING,

        HCI_PSCAN,
        HCI_ISCAN,
        HCI_AUTH,
        HCI_ENCRYPT,
        HCI_INQUIRY,

        HCI_RAW,
};

/* HCI ioctl defines */
#define HCIDEVUP        _IOW('H', 201, int)
#define HCIDEVDOWN      _IOW('H', 202, int)
#define HCIDEVRESET     _IOW('H', 203, int)
#define HCIDEVRESTAT    _IOW('H', 204, int)

#define HCIGETDEVLIST   _IOR('H', 210, int)
#define HCIGETDEVINFO   _IOR('H', 211, int)
#define HCIGETCONNLIST  _IOR('H', 212, int)
#define HCIGETCONNINFO  _IOR('H', 213, int)
#define HCIGETAUTHINFO  _IOR('H', 215, int)

#define HCISETRAW       _IOW('H', 220, int)
#define HCISETSCAN      _IOW('H', 221, int)
#define HCISETAUTH      _IOW('H', 222, int)
#define HCISETENCRYPT   _IOW('H', 223, int)
#define HCISETPTYPE     _IOW('H', 224, int)
#define HCISETLINKPOL   _IOW('H', 225, int)
#define HCISETLINKMODE  _IOW('H', 226, int)
#define HCISETACLMTU    _IOW('H', 227, int)
#define HCISETSCOMTU    _IOW('H', 228, int)

#define HCIINQUIRY      _IOR('H', 240, int)

/* HCI timeouts */
#define HCI_CONNECT_TIMEOUT     (40000) /* 40 seconds */
#define HCI_DISCONN_TIMEOUT     (2000)  /* 2 seconds */
#define HCI_PAIRING_TIMEOUT     (60000) /* 60 seconds */
#define HCI_IDLE_TIMEOUT        (6000)  /* 6 seconds */
#define HCI_INIT_TIMEOUT        (10000) /* 10 seconds */

/* HCI data types */
#define HCI_COMMAND_PKT         0x01
#define HCI_ACLDATA_PKT         0x02
#define HCI_SCODATA_PKT         0x03
#define HCI_EVENT_PKT           0x04
#define HCI_VENDOR_PKT          0xff

/* HCI packet types */
#define HCI_DM1         0x0008
#define HCI_DM3         0x0400
#define HCI_DM5         0x4000
#define HCI_DH1         0x0010
#define HCI_DH3         0x0800
#define HCI_DH5         0x8000

#define HCI_HV1         0x0020
#define HCI_HV2         0x0040
#define HCI_HV3         0x0080

#define SCO_PTYPE_MASK  (HCI_HV1 | HCI_HV2 | HCI_HV3)
#define ACL_PTYPE_MASK  (~SCO_PTYPE_MASK)

/* eSCO packet types */
#define ESCO_HV1        0x0001
#define ESCO_HV2        0x0002
#define ESCO_HV3        0x0004
#define ESCO_EV3        0x0008
#define ESCO_EV4        0x0010
#define ESCO_EV5        0x0020
#define ESCO_2EV3       0x0040
#define ESCO_3EV3       0x0080
#define ESCO_2EV5       0x0100
#define ESCO_3EV5       0x0200

#define SCO_ESCO_MASK  (ESCO_HV1 | ESCO_HV2 | ESCO_HV3)
#define EDR_ESCO_MASK  (ESCO_2EV3 | ESCO_3EV3 | ESCO_2EV5 | ESCO_3EV5)

/* ACL flags */
#define ACL_CONT                0x01
#define ACL_START               0x02
#define ACL_ACTIVE_BCAST        0x04
#define ACL_PICO_BCAST          0x08

/* Baseband links */
#define SCO_LINK        0x00
#define ACL_LINK        0x01
#define ESCO_LINK       0x02

/* LMP features */
#define LMP_3SLOT       0x01
#define LMP_5SLOT       0x02
#define LMP_ENCRYPT     0x04
#define LMP_SOFFSET     0x08
#define LMP_TACCURACY   0x10
#define LMP_RSWITCH     0x20
#define LMP_HOLD        0x40
#define LMP_SNIFF       0x80

#define LMP_PARK        0x01
#define LMP_RSSI        0x02
#define LMP_QUALITY     0x04
#define LMP_SCO         0x08
#define LMP_HV2         0x10
#define LMP_HV3         0x20
#define LMP_ULAW        0x40
#define LMP_ALAW        0x80

#define LMP_CVSD        0x01
#define LMP_PSCHEME     0x02
#define LMP_PCONTROL    0x04

#define LMP_ESCO        0x80

#define LMP_EV4         0x01
#define LMP_EV5         0x02

#define LMP_SNIFF_SUBR  0x02
#define LMP_EDR_ESCO_2M 0x20
#define LMP_EDR_ESCO_3M 0x40
#define LMP_EDR_3S_ESCO 0x80

#define LMP_SIMPLE_PAIR 0x08

/* Connection modes */
#define HCI_CM_ACTIVE   0x0000
#define HCI_CM_HOLD     0x0001
#define HCI_CM_SNIFF    0x0002
#define HCI_CM_PARK     0x0003

/* Link policies */
#define HCI_LP_RSWITCH  0x0001
#define HCI_LP_HOLD     0x0002
#define HCI_LP_SNIFF    0x0004
#define HCI_LP_PARK     0x0008

/* Link modes */
#define HCI_LM_ACCEPT   0x8000
#define HCI_LM_MASTER   0x0001
#define HCI_LM_AUTH     0x0002
#define HCI_LM_ENCRYPT  0x0004
#define HCI_LM_TRUSTED  0x0008
#define HCI_LM_RELIABLE 0x0010
#define HCI_LM_SECURE   0x0020

/* Authentication types */
#define HCI_AT_NO_BONDING               0x00
#define HCI_AT_NO_BONDING_MITM          0x01
#define HCI_AT_DEDICATED_BONDING        0x02
#define HCI_AT_DEDICATED_BONDING_MITM   0x03
#define HCI_AT_GENERAL_BONDING          0x04
#define HCI_AT_GENERAL_BONDING_MITM     0x05

/* -----  HCI Commands ---- */
#define HCI_OP_INQUIRY                  0x0401
struct hci_cp_inquiry {
        __u8     lap[3];
        __u8     length;
        __u8     num_rsp;
} __attribute__ ((packed));

#define HCI_OP_INQUIRY_CANCEL           0x0402

#define HCI_OP_EXIT_PERIODIC_INQ        0x0404

#define HCI_OP_CREATE_CONN              0x0405
struct hci_cp_create_conn {
        bdaddr_t bdaddr;
        __le16   pkt_type;
        __u8     pscan_rep_mode;
        __u8     pscan_mode;
        __le16   clock_offset;
        __u8     role_switch;
} __attribute__ ((packed));

#define HCI_OP_DISCONNECT               0x0406
struct hci_cp_disconnect {
        __le16   handle;
        __u8     reason;
} __attribute__ ((packed));

#define HCI_OP_ADD_SCO                  0x0407
struct hci_cp_add_sco {
        __le16   handle;
        __le16   pkt_type;
} __attribute__ ((packed));

#define HCI_OP_CREATE_CONN_CANCEL       0x0408
struct hci_cp_create_conn_cancel {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_OP_ACCEPT_CONN_REQ          0x0409
struct hci_cp_accept_conn_req {
        bdaddr_t bdaddr;
        __u8     role;
} __attribute__ ((packed));

#define HCI_OP_REJECT_CONN_REQ          0x040a
struct hci_cp_reject_conn_req {
        bdaddr_t bdaddr;
        __u8     reason;
} __attribute__ ((packed));

#define HCI_OP_LINK_KEY_REPLY           0x040b
struct hci_cp_link_key_reply {
        bdaddr_t bdaddr;
        __u8     link_key[16];
} __attribute__ ((packed));

#define HCI_OP_LINK_KEY_NEG_REPLY       0x040c
struct hci_cp_link_key_neg_reply {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_OP_PIN_CODE_REPLY           0x040d
struct hci_cp_pin_code_reply {
        bdaddr_t bdaddr;
        __u8     pin_len;
        __u8     pin_code[16];
} __attribute__ ((packed));

#define HCI_OP_PIN_CODE_NEG_REPLY       0x040e
struct hci_cp_pin_code_neg_reply {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_OP_CHANGE_CONN_PTYPE        0x040f
struct hci_cp_change_conn_ptype {
        __le16   handle;
        __le16   pkt_type;
} __attribute__ ((packed));

#define HCI_OP_AUTH_REQUESTED           0x0411
struct hci_cp_auth_requested {
        __le16   handle;
} __attribute__ ((packed));

#define HCI_OP_SET_CONN_ENCRYPT         0x0413
struct hci_cp_set_conn_encrypt {
        __le16   handle;
        __u8     encrypt;
} __attribute__ ((packed));

#define HCI_OP_CHANGE_CONN_LINK_KEY     0x0415
struct hci_cp_change_conn_link_key {
        __le16   handle;
} __attribute__ ((packed));

#define HCI_OP_REMOTE_NAME_REQ          0x0419
struct hci_cp_remote_name_req {
        bdaddr_t bdaddr;
        __u8     pscan_rep_mode;
        __u8     pscan_mode;
        __le16   clock_offset;
} __attribute__ ((packed));

#define HCI_OP_REMOTE_NAME_REQ_CANCEL   0x041a
struct hci_cp_remote_name_req_cancel {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_OP_READ_REMOTE_FEATURES     0x041b
struct hci_cp_read_remote_features {
        __le16   handle;
} __attribute__ ((packed));

#define HCI_OP_READ_REMOTE_EXT_FEATURES 0x041c
struct hci_cp_read_remote_ext_features {
        __le16   handle;
        __u8     page;
} __attribute__ ((packed));

#define HCI_OP_READ_REMOTE_VERSION      0x041d
struct hci_cp_read_remote_version {
        __le16   handle;
} __attribute__ ((packed));

#define HCI_OP_SETUP_SYNC_CONN          0x0428
struct hci_cp_setup_sync_conn {
        __le16   handle;
        __le32   tx_bandwidth;
        __le32   rx_bandwidth;
        __le16   max_latency;
        __le16   voice_setting;
        __u8     retrans_effort;
        __le16   pkt_type;
} __attribute__ ((packed));

#define HCI_OP_ACCEPT_SYNC_CONN_REQ     0x0429
struct hci_cp_accept_sync_conn_req {
        bdaddr_t bdaddr;
        __le32   tx_bandwidth;
        __le32   rx_bandwidth;
        __le16   max_latency;
        __le16   content_format;
        __u8     retrans_effort;
        __le16   pkt_type;
} __attribute__ ((packed));

#define HCI_OP_REJECT_SYNC_CONN_REQ     0x042a
struct hci_cp_reject_sync_conn_req {
        bdaddr_t bdaddr;
        __u8     reason;
} __attribute__ ((packed));

#define HCI_OP_SNIFF_MODE               0x0803
struct hci_cp_sniff_mode {
        __le16   handle;
        __le16   max_interval;
        __le16   min_interval;
        __le16   attempt;
        __le16   timeout;
} __attribute__ ((packed));

#define HCI_OP_EXIT_SNIFF_MODE          0x0804
struct hci_cp_exit_sniff_mode {
        __le16   handle;
} __attribute__ ((packed));

#define HCI_OP_ROLE_DISCOVERY           0x0809
struct hci_cp_role_discovery {
        __le16   handle;
} __attribute__ ((packed));
struct hci_rp_role_discovery {
        __u8     status;
        __le16   handle;
        __u8     role;
} __attribute__ ((packed));

#define HCI_OP_SWITCH_ROLE              0x080b
struct hci_cp_switch_role {
        bdaddr_t bdaddr;
        __u8     role;
} __attribute__ ((packed));

#define HCI_OP_READ_LINK_POLICY         0x080c
struct hci_cp_read_link_policy {
        __le16   handle;
} __attribute__ ((packed));
struct hci_rp_read_link_policy {
        __u8     status;
        __le16   handle;
        __le16   policy;
} __attribute__ ((packed));

#define HCI_OP_WRITE_LINK_POLICY        0x080d
struct hci_cp_write_link_policy {
        __le16   handle;
        __le16   policy;
} __attribute__ ((packed));
struct hci_rp_write_link_policy {
        __u8     status;
        __le16   handle;
} __attribute__ ((packed));

#define HCI_OP_READ_DEF_LINK_POLICY     0x080e
struct hci_rp_read_def_link_policy {
        __u8     status;
        __le16   policy;
} __attribute__ ((packed));

#define HCI_OP_WRITE_DEF_LINK_POLICY    0x080f
struct hci_cp_write_def_link_policy {
        __le16   policy;
} __attribute__ ((packed));

#define HCI_OP_SNIFF_SUBRATE            0x0811
struct hci_cp_sniff_subrate {
        __le16   handle;
        __le16   max_latency;
        __le16   min_remote_timeout;
        __le16   min_local_timeout;
} __attribute__ ((packed));

#define HCI_OP_SET_EVENT_MASK           0x0c01
struct hci_cp_set_event_mask {
        __u8     mask[8];
} __attribute__ ((packed));

#define HCI_OP_RESET                    0x0c03

#define HCI_OP_SET_EVENT_FLT            0x0c05
struct hci_cp_set_event_flt {
        __u8     flt_type;
        __u8     cond_type;
        __u8     condition[0];
} __attribute__ ((packed));

/* Filter types */
#define HCI_FLT_CLEAR_ALL       0x00
#define HCI_FLT_INQ_RESULT      0x01
#define HCI_FLT_CONN_SETUP      0x02

/* CONN_SETUP Condition types */
#define HCI_CONN_SETUP_ALLOW_ALL        0x00
#define HCI_CONN_SETUP_ALLOW_CLASS      0x01
#define HCI_CONN_SETUP_ALLOW_BDADDR     0x02

/* CONN_SETUP Conditions */
#define HCI_CONN_SETUP_AUTO_OFF 0x01
#define HCI_CONN_SETUP_AUTO_ON  0x02

#define HCI_OP_WRITE_LOCAL_NAME         0x0c13
struct hci_cp_write_local_name {
        __u8     name[248];
} __attribute__ ((packed));

#define HCI_OP_READ_LOCAL_NAME          0x0c14
struct hci_rp_read_local_name {
        __u8     status;
        __u8     name[248];
} __attribute__ ((packed));

#define HCI_OP_WRITE_CA_TIMEOUT         0x0c16

#define HCI_OP_WRITE_PG_TIMEOUT         0x0c18

#define HCI_OP_WRITE_SCAN_ENABLE        0x0c1a
        #define SCAN_DISABLED           0x00
        #define SCAN_INQUIRY            0x01
        #define SCAN_PAGE               0x02

#define HCI_OP_READ_AUTH_ENABLE         0x0c1f

#define HCI_OP_WRITE_AUTH_ENABLE        0x0c20
        #define AUTH_DISABLED           0x00
        #define AUTH_ENABLED            0x01

#define HCI_OP_READ_ENCRYPT_MODE        0x0c21

#define HCI_OP_WRITE_ENCRYPT_MODE       0x0c22
        #define ENCRYPT_DISABLED        0x00
        #define ENCRYPT_P2P             0x01
        #define ENCRYPT_BOTH            0x02

#define HCI_OP_READ_CLASS_OF_DEV        0x0c23
struct hci_rp_read_class_of_dev {
        __u8     status;
        __u8     dev_class[3];
} __attribute__ ((packed));

#define HCI_OP_WRITE_CLASS_OF_DEV       0x0c24
struct hci_cp_write_class_of_dev {
        __u8     dev_class[3];
} __attribute__ ((packed));

#define HCI_OP_READ_VOICE_SETTING       0x0c25
struct hci_rp_read_voice_setting {
        __u8     status;
        __le16   voice_setting;
} __attribute__ ((packed));

#define HCI_OP_WRITE_VOICE_SETTING      0x0c26
struct hci_cp_write_voice_setting {
        __le16   voice_setting;
} __attribute__ ((packed));

#define HCI_OP_HOST_BUFFER_SIZE         0x0c33
struct hci_cp_host_buffer_size {
        __le16   acl_mtu;
        __u8     sco_mtu;
        __le16   acl_max_pkt;
        __le16   sco_max_pkt;
} __attribute__ ((packed));

#define HCI_OP_READ_SSP_MODE            0x0c55
struct hci_rp_read_ssp_mode {
        __u8     status;
        __u8     mode;
} __attribute__ ((packed));

#define HCI_OP_WRITE_SSP_MODE           0x0c56
struct hci_cp_write_ssp_mode {
        __u8     mode;
} __attribute__ ((packed));

#define HCI_OP_READ_LOCAL_VERSION       0x1001
struct hci_rp_read_local_version {
        __u8     status;
        __u8     hci_ver;
        __le16   hci_rev;
        __u8     lmp_ver;
        __le16   manufacturer;
        __le16   lmp_subver;
} __attribute__ ((packed));

#define HCI_OP_READ_LOCAL_COMMANDS      0x1002
struct hci_rp_read_local_commands {
        __u8     status;
        __u8     commands[64];
} __attribute__ ((packed));

#define HCI_OP_READ_LOCAL_FEATURES      0x1003
struct hci_rp_read_local_features {
        __u8     status;
        __u8     features[8];
} __attribute__ ((packed));

#define HCI_OP_READ_LOCAL_EXT_FEATURES  0x1004
struct hci_rp_read_local_ext_features {
        __u8     status;
        __u8     page;
        __u8     max_page;
        __u8     features[8];
} __attribute__ ((packed));

#define HCI_OP_READ_BUFFER_SIZE         0x1005
struct hci_rp_read_buffer_size {
        __u8     status;
        __le16   acl_mtu;
        __u8     sco_mtu;
        __le16   acl_max_pkt;
        __le16   sco_max_pkt;
} __attribute__ ((packed));

#define HCI_OP_READ_BD_ADDR             0x1009
struct hci_rp_read_bd_addr {
        __u8     status;
        bdaddr_t bdaddr;
} __attribute__ ((packed));

/* ---- HCI Events ---- */
#define HCI_EV_INQUIRY_COMPLETE         0x01

#define HCI_EV_INQUIRY_RESULT           0x02
struct inquiry_info {
        bdaddr_t bdaddr;
        __u8     pscan_rep_mode;
        __u8     pscan_period_mode;
        __u8     pscan_mode;
        __u8     dev_class[3];
        __le16   clock_offset;
} __attribute__ ((packed));

#define HCI_EV_CONN_COMPLETE            0x03
struct hci_ev_conn_complete {
        __u8     status;
        __le16   handle;
        bdaddr_t bdaddr;
        __u8     link_type;
        __u8     encr_mode;
} __attribute__ ((packed));

#define HCI_EV_CONN_REQUEST             0x04
struct hci_ev_conn_request {
        bdaddr_t bdaddr;
        __u8     dev_class[3];
        __u8     link_type;
} __attribute__ ((packed));

#define HCI_EV_DISCONN_COMPLETE         0x05
struct hci_ev_disconn_complete {
        __u8     status;
        __le16   handle;
        __u8     reason;
} __attribute__ ((packed));

#define HCI_EV_AUTH_COMPLETE            0x06
struct hci_ev_auth_complete {
        __u8     status;
        __le16   handle;
} __attribute__ ((packed));

#define HCI_EV_REMOTE_NAME              0x07
struct hci_ev_remote_name {
        __u8     status;
        bdaddr_t bdaddr;
        __u8     name[248];
} __attribute__ ((packed));

#define HCI_EV_ENCRYPT_CHANGE           0x08
struct hci_ev_encrypt_change {
        __u8     status;
        __le16   handle;
        __u8     encrypt;
} __attribute__ ((packed));

#define HCI_EV_CHANGE_LINK_KEY_COMPLETE 0x09
struct hci_ev_change_link_key_complete {
        __u8     status;
        __le16   handle;
} __attribute__ ((packed));

#define HCI_EV_REMOTE_FEATURES          0x0b
struct hci_ev_remote_features {
        __u8     status;
        __le16   handle;
        __u8     features[8];
} __attribute__ ((packed));

#define HCI_EV_REMOTE_VERSION           0x0c
struct hci_ev_remote_version {
        __u8     status;
        __le16   handle;
        __u8     lmp_ver;
        __le16   manufacturer;
        __le16   lmp_subver;
} __attribute__ ((packed));

#define HCI_EV_QOS_SETUP_COMPLETE       0x0d
struct hci_qos {
        __u8     service_type;
        __u32    token_rate;
        __u32    peak_bandwidth;
        __u32    latency;
        __u32    delay_variation;
} __attribute__ ((packed));
struct hci_ev_qos_setup_complete {
        __u8     status;
        __le16   handle;
        struct   hci_qos qos;
} __attribute__ ((packed));

#define HCI_EV_CMD_COMPLETE             0x0e
struct hci_ev_cmd_complete {
        __u8     ncmd;
        __le16   opcode;
} __attribute__ ((packed));

#define HCI_EV_CMD_STATUS               0x0f
struct hci_ev_cmd_status {
        __u8     status;
        __u8     ncmd;
        __le16   opcode;
} __attribute__ ((packed));

#define HCI_EV_ROLE_CHANGE              0x12
struct hci_ev_role_change {
        __u8     status;
        bdaddr_t bdaddr;
        __u8     role;
} __attribute__ ((packed));

#define HCI_EV_NUM_COMP_PKTS            0x13
struct hci_ev_num_comp_pkts {
        __u8     num_hndl;
        /* variable length part */
} __attribute__ ((packed));

#define HCI_EV_MODE_CHANGE              0x14
struct hci_ev_mode_change {
        __u8     status;
        __le16   handle;
        __u8     mode;
        __le16   interval;
} __attribute__ ((packed));

#define HCI_EV_PIN_CODE_REQ             0x16
struct hci_ev_pin_code_req {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_EV_LINK_KEY_REQ             0x17
struct hci_ev_link_key_req {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_EV_LINK_KEY_NOTIFY          0x18
struct hci_ev_link_key_notify {
        bdaddr_t bdaddr;
        __u8     link_key[16];
        __u8     key_type;
} __attribute__ ((packed));

#define HCI_EV_CLOCK_OFFSET             0x1c
struct hci_ev_clock_offset {
        __u8     status;
        __le16   handle;
        __le16   clock_offset;
} __attribute__ ((packed));

#define HCI_EV_PKT_TYPE_CHANGE          0x1d
struct hci_ev_pkt_type_change {
        __u8     status;
        __le16   handle;
        __le16   pkt_type;
} __attribute__ ((packed));

#define HCI_EV_PSCAN_REP_MODE           0x20
struct hci_ev_pscan_rep_mode {
        bdaddr_t bdaddr;
        __u8     pscan_rep_mode;
} __attribute__ ((packed));

#define HCI_EV_INQUIRY_RESULT_WITH_RSSI 0x22
struct inquiry_info_with_rssi {
        bdaddr_t bdaddr;
        __u8     pscan_rep_mode;
        __u8     pscan_period_mode;
        __u8     dev_class[3];
        __le16   clock_offset;
        __s8     rssi;
} __attribute__ ((packed));
struct inquiry_info_with_rssi_and_pscan_mode {
        bdaddr_t bdaddr;
        __u8     pscan_rep_mode;
        __u8     pscan_period_mode;
        __u8     pscan_mode;
        __u8     dev_class[3];
        __le16   clock_offset;
        __s8     rssi;
} __attribute__ ((packed));

#define HCI_EV_REMOTE_EXT_FEATURES      0x23
struct hci_ev_remote_ext_features {
        __u8     status;
        __le16   handle;
        __u8     page;
        __u8     max_page;
        __u8     features[8];
} __attribute__ ((packed));

#define HCI_EV_SYNC_CONN_COMPLETE       0x2c
struct hci_ev_sync_conn_complete {
        __u8     status;
        __le16   handle;
        bdaddr_t bdaddr;
        __u8     link_type;
        __u8     tx_interval;
        __u8     retrans_window;
        __le16   rx_pkt_len;
        __le16   tx_pkt_len;
        __u8     air_mode;
} __attribute__ ((packed));

#define HCI_EV_SYNC_CONN_CHANGED        0x2d
struct hci_ev_sync_conn_changed {
        __u8     status;
        __le16   handle;
        __u8     tx_interval;
        __u8     retrans_window;
        __le16   rx_pkt_len;
        __le16   tx_pkt_len;
} __attribute__ ((packed));

#define HCI_EV_SNIFF_SUBRATE            0x2e
struct hci_ev_sniff_subrate {
        __u8     status;
        __le16   handle;
        __le16   max_tx_latency;
        __le16   max_rx_latency;
        __le16   max_remote_timeout;
        __le16   max_local_timeout;
} __attribute__ ((packed));

#define HCI_EV_EXTENDED_INQUIRY_RESULT  0x2f
struct extended_inquiry_info {
        bdaddr_t bdaddr;
        __u8     pscan_rep_mode;
        __u8     pscan_period_mode;
        __u8     dev_class[3];
        __le16   clock_offset;
        __s8     rssi;
        __u8     data[240];
} __attribute__ ((packed));

#define HCI_EV_IO_CAPA_REQUEST          0x31
struct hci_ev_io_capa_request {
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_EV_SIMPLE_PAIR_COMPLETE     0x36
struct hci_ev_simple_pair_complete {
        __u8     status;
        bdaddr_t bdaddr;
} __attribute__ ((packed));

#define HCI_EV_REMOTE_HOST_FEATURES     0x3d
struct hci_ev_remote_host_features {
        bdaddr_t bdaddr;
        __u8     features[8];
} __attribute__ ((packed));

/* Internal events generated by Bluetooth stack */
#define HCI_EV_STACK_INTERNAL   0xfd
struct hci_ev_stack_internal {
        __u16    type;
        __u8     data[0];
} __attribute__ ((packed));

#define HCI_EV_SI_DEVICE        0x01
struct hci_ev_si_device {
        __u16    event;
        __u16    dev_id;
} __attribute__ ((packed));

#define HCI_EV_SI_SECURITY      0x02
struct hci_ev_si_security {
        __u16    event;
        __u16    proto;
        __u16    subproto;
        __u8     incoming;
} __attribute__ ((packed));

/* ---- HCI Packet structures ---- */
#define HCI_COMMAND_HDR_SIZE 3
#define HCI_EVENT_HDR_SIZE   2
#define HCI_ACL_HDR_SIZE     4
#define HCI_SCO_HDR_SIZE     3

struct hci_command_hdr {
        __le16  opcode;         /* OCF & OGF */
        __u8    plen;
} __attribute__ ((packed));

struct hci_event_hdr {
        __u8    evt;
        __u8    plen;
} __attribute__ ((packed));

struct hci_acl_hdr {
        __le16  handle;         /* Handle & Flags(PB, BC) */
        __le16  dlen;
} __attribute__ ((packed));

struct hci_sco_hdr {
        __le16  handle;
        __u8    dlen;
} __attribute__ ((packed));

#ifdef __KERNEL__
#include <linux/skbuff.h>
static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)
{
        return (struct hci_event_hdr *) skb->data;
}

static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)
{
        return (struct hci_acl_hdr *) skb->data;
}

static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
{
        return (struct hci_sco_hdr *) skb->data;
}
#endif

/* Command opcode pack/unpack */
#define hci_opcode_pack(ogf, ocf)       (__u16) ((ocf & 0x03ff)|(ogf << 10))
#define hci_opcode_ogf(op)              (op >> 10)
#define hci_opcode_ocf(op)              (op & 0x03ff)

/* ACL handle and flags pack/unpack */
#define hci_handle_pack(h, f)   (__u16) ((h & 0x0fff)|(f << 12))
#define hci_handle(h)           (h & 0x0fff)
#define hci_flags(h)            (h >> 12)

/* ---- HCI Sockets ---- */

/* Socket options */
#define HCI_DATA_DIR    1
#define HCI_FILTER      2
#define HCI_TIME_STAMP  3

/* CMSG flags */
#define HCI_CMSG_DIR    0x0001
#define HCI_CMSG_TSTAMP 0x0002

struct sockaddr_hci {
        sa_family_t    hci_family;
        unsigned short hci_dev;
};
#define HCI_DEV_NONE    0xffff

struct hci_filter {
        unsigned long type_mask;
        unsigned long event_mask[2];
        __le16 opcode;
};

struct hci_ufilter {
        __u32  type_mask;
        __u32  event_mask[2];
        __le16 opcode;
};

#define HCI_FLT_TYPE_BITS       31
#define HCI_FLT_EVENT_BITS      63
#define HCI_FLT_OGF_BITS        63
#define HCI_FLT_OCF_BITS        127

/* ---- HCI Ioctl requests structures ---- */
struct hci_dev_stats {
        __u32 err_rx;
        __u32 err_tx;
        __u32 cmd_tx;
        __u32 evt_rx;
        __u32 acl_tx;
        __u32 acl_rx;
        __u32 sco_tx;
        __u32 sco_rx;
        __u32 byte_rx;
        __u32 byte_tx;
};

struct hci_dev_info {
        __u16 dev_id;
        char  name[8];

        bdaddr_t bdaddr;

        __u32 flags;
        __u8  type;

        __u8  features[8];

        __u32 pkt_type;
        __u32 link_policy;
        __u32 link_mode;

        __u16 acl_mtu;
        __u16 acl_pkts;
        __u16 sco_mtu;
        __u16 sco_pkts;

        struct hci_dev_stats stat;
};

struct hci_conn_info {
        __u16    handle;
        bdaddr_t bdaddr;
        __u8     type;
        __u8     out;
        __u16    state;
        __u32    link_mode;
};

struct hci_dev_req {
        __u16  dev_id;
        __u32  dev_opt;
};

struct hci_dev_list_req {
        __u16  dev_num;
        struct hci_dev_req dev_req[0];  /* hci_dev_req structures */
};

struct hci_conn_list_req {
        __u16  dev_id;
        __u16  conn_num;
        struct hci_conn_info conn_info[0];
};

struct hci_conn_info_req {
        bdaddr_t bdaddr;
        __u8     type;
        struct   hci_conn_info conn_info[0];
};

struct hci_auth_info_req {
        bdaddr_t bdaddr;
        __u8     type;
};

struct hci_inquiry_req {
        __u16 dev_id;
        __u16 flags;
        __u8  lap[3];
        __u8  length;
        __u8  num_rsp;
};
#define IREQ_CACHE_FLUSH 0x0001

#endif /* __HCI_H */