text: /******************************************************************************
   *
   *  Copyright (C) 1999-2012 Broadcom Corporation
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at:
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   *
   ******************************************************************************/
  
  /******************************************************************************
   *
   *  this file contains the main Bluetooth Manager (BTM) internal
   *  definitions.
   *
   ******************************************************************************/
  #ifndef BTM_INT_H
  #define BTM_INT_H
  
  #include "common/bt_defs.h"
  #include "common/bt_target.h"
  #include "stack/hcidefs.h"
  
  #include "stack/rfcdefs.h"
  
  #include "stack/btm_api.h"
  #include "osi/fixed_queue.h"
  
  #if (BLE_INCLUDED == TRUE)
  #include "btm_ble_int.h"
  #endif
  #if (SMP_INCLUDED == TRUE)
  #include "stack/smp_api.h"
  #endif
  
  #if BTM_MAX_LOC_BD_NAME_LEN > 0
  typedef char tBTM_LOC_BD_NAME[BTM_MAX_LOC_BD_NAME_LEN + 1];
  #endif
  
  #define  BTM_ACL_IS_CONNECTED(bda)   (btm_bda_to_acl (bda, BT_TRANSPORT_BR_EDR) != NULL)
  
  /* Definitions for Server Channel Number (SCN) management
  */
  #define BTM_MAX_SCN      PORT_MAX_RFC_PORTS
  
  /* Define masks for supported and exception 2.0 ACL packet types
  */
  #define BTM_ACL_SUPPORTED_PKTS_MASK      (HCI_PKT_TYPES_MASK_DM1        | \
                                            HCI_PKT_TYPES_MASK_DH1        | \
                                            HCI_PKT_TYPES_MASK_DM3        | \
                                            HCI_PKT_TYPES_MASK_DH3        | \
                                            HCI_PKT_TYPES_MASK_DM5        | \
                                            HCI_PKT_TYPES_MASK_DH5)
  
  #define BTM_ACL_EXCEPTION_PKTS_MASK      (HCI_PKT_TYPES_MASK_NO_2_DH1   | \
                                            HCI_PKT_TYPES_MASK_NO_3_DH1   | \
                                            HCI_PKT_TYPES_MASK_NO_2_DH3   | \
                                            HCI_PKT_TYPES_MASK_NO_3_DH3   | \
                                            HCI_PKT_TYPES_MASK_NO_2_DH5   | \
                                            HCI_PKT_TYPES_MASK_NO_3_DH5)
  
  #define BTM_EPR_AVAILABLE(p) ((HCI_ATOMIC_ENCRYPT_SUPPORTED((p)->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]) && \
                                 HCI_ATOMIC_ENCRYPT_SUPPORTED(controller_get_interface()->get_features_classic(0)->as_array)) \
                                 ? TRUE : FALSE)
  
  #define BTM_IS_BRCM_CONTROLLER() (controller_get_interface()->get_bt_version()->manufacturer == LMP_COMPID_BROADCOM)
  
  /* Define the ACL Management control structure
  */
  typedef struct {
  UINT16          hci_handle;
  UINT16          pkt_types_mask;
  UINT16          clock_offset;
  BD_ADDR         remote_addr;
  DEV_CLASS       remote_dc;
  BD_NAME         remote_name;
  
  UINT16          manufacturer;
  UINT16          lmp_subversion;
  UINT16          link_super_tout;
  BD_FEATURES     peer_lmp_features[HCI_EXT_FEATURES_PAGE_MAX + 1];    /* Peer LMP Extended features mask table for the device */
  UINT8           num_read_pages;
  UINT8           lmp_version;
  
  BOOLEAN         in_use;
  UINT8           link_role;
  BOOLEAN         link_up_issued;     /* True if busy_level link up has been issued */
  
  #define BTM_ACL_SWKEY_STATE_IDLE                0
  #define BTM_ACL_SWKEY_STATE_MODE_CHANGE         1
  #define BTM_ACL_SWKEY_STATE_ENCRYPTION_OFF      2
  #define BTM_ACL_SWKEY_STATE_SWITCHING           3
  #define BTM_ACL_SWKEY_STATE_ENCRYPTION_ON       4
  #define BTM_ACL_SWKEY_STATE_IN_PROGRESS         5
  UINT8           switch_role_state;
  
  #define BTM_ACL_ENCRYPT_STATE_IDLE              0
  #define BTM_ACL_ENCRYPT_STATE_ENCRYPT_OFF       1   /* encryption turning off */
  #define BTM_ACL_ENCRYPT_STATE_TEMP_FUNC         2   /* temporarily off for change link key or role switch */
  #define BTM_ACL_ENCRYPT_STATE_ENCRYPT_ON        3   /* encryption turning on */
  UINT8           encrypt_state;                  /* overall BTM encryption state */
  
  #if BLE_INCLUDED == TRUE
  tBT_TRANSPORT   transport;
  BD_ADDR         conn_addr;              /* local device address used for this connection */
  UINT8           conn_addr_type;         /* local device address type for this connection */
  BD_ADDR         active_remote_addr;     /* remote address used on this connection */
  UINT8           active_remote_addr_type;         /* local device address type for this connection */
  BD_FEATURES     peer_le_features;       /* Peer LE Used features mask for the device */
  tBTM_SET_PKT_DATA_LENGTH_CBACK *p_set_pkt_data_cback;
  tBTM_LE_SET_PKT_DATA_LENGTH_PARAMS data_length_params;
  #endif
  
  } tACL_CONN;
  
  /*****************************************************
  ** TIMER Definitions
  ******************************************************/
  #define TT_DEV_RESET     1
  #define TT_DEV_RLN       2
  #define TT_DEV_RLNKP     4              /* Read Link Policy Settings */
  
  /* Define the Device Management control structure
  */
  typedef struct {
  tBTM_DEV_STATUS_CB  *p_dev_status_cb;   /* Device status change callback        */
  tBTM_VS_EVT_CB      *p_vend_spec_cb[BTM_MAX_VSE_CALLBACKS];     /* Register for vendor specific events  */
  
  tBTM_CMPL_CB        *p_stored_link_key_cmpl_cb;   /* Read/Write/Delete stored link key    */
  
  TIMER_LIST_ENT       reset_timer;
  tBTM_CMPL_CB         *p_reset_cmpl_cb;
  
  TIMER_LIST_ENT       rln_timer;
  tBTM_CMPL_CB        *p_rln_cmpl_cb;     /* Callback function to be called when  */
  /* read local name function complete    */
  TIMER_LIST_ENT       rssi_timer;
  tBTM_CMPL_CB        *p_rssi_cmpl_cb;    /* Callback function to be called when  */
  /* read rssi function completes         */
  TIMER_LIST_ENT       lnk_quality_timer;
  tBTM_CMPL_CB        *p_lnk_qual_cmpl_cb;/* Callback function to be called when  */
  /* read link quality function completes */
  TIMER_LIST_ENT       txpwer_timer;
  tBTM_CMPL_CB        *p_txpwer_cmpl_cb;    /* Callback function to be called when  */
  /* read inq tx power function completes  */
  
  TIMER_LIST_ENT       qossu_timer;
  tBTM_CMPL_CB        *p_qossu_cmpl_cb;   /* Callback function to be called when  */
  /* qos setup function completes         */
  
  tBTM_ROLE_SWITCH_CMPL switch_role_ref_data;
  tBTM_CMPL_CB        *p_switch_role_cb;  /* Callback function to be called when  */
  /* requested switch role is completed   */
  
  TIMER_LIST_ENT       tx_power_timer;
  tBTM_CMPL_CB        *p_tx_power_cmpl_cb;/* Callback function to be called       */
  
  #if CLASSIC_BT_INCLUDED == TRUE
  TIMER_LIST_ENT       afh_channels_timer;
  tBTM_CMPL_CB        *p_afh_channels_cmpl_cb; /* Callback function to be called  When */
  /* set AFH channels is completed   */
  #endif
  
  DEV_CLASS            dev_class;         /* Local device class                   */
  
  #if BLE_INCLUDED == TRUE
  
  TIMER_LIST_ENT       ble_channels_timer;
  tBTM_CMPL_CB        *p_ble_channels_cmpl_cb; /* Callback function to be called  When
                                                  ble set host channels is completed   */
  
  tBTM_CMPL_CB        *p_le_test_cmd_cmpl_cb;   /* Callback function to be called when
                                                    LE test mode command has been sent successfully */
  
  BD_ADDR                 read_tx_pwr_addr;   /* read TX power target address     */
  
  #define BTM_LE_SUPPORT_STATE_SIZE   8
  UINT8                   le_supported_states[BTM_LE_SUPPORT_STATE_SIZE];
  
  tBTM_BLE_LOCAL_ID_KEYS id_keys; /* local BLE ID keys */
  BT_OCTET16 ble_encryption_key_value; /* BLE encryption key */
  
  #if BTM_BLE_CONFORMANCE_TESTING == TRUE
  BOOLEAN                 no_disc_if_pair_fail;
  BOOLEAN                 enable_test_mac_val;
  BT_OCTET8               test_mac;
  BOOLEAN                 enable_test_local_sign_cntr;
  UINT32                  test_local_sign_cntr;
  #endif
  
  #endif  /* BLE_INCLUDED */
  
  tBTM_IO_CAP          loc_io_caps;       /* IO capability of the local device */
  tBTM_AUTH_REQ        loc_auth_req;      /* the auth_req flag  */
  BOOLEAN              secure_connections_only;    /* Rejects service level 0 connections if */
  /* itself or peer device doesn't support */
  /* secure connections */
  } tBTM_DEVCB;
  
  
  /* Define the structures and constants used for inquiry
  */
  
  /* Definitions of limits for inquiries */
  #define BTM_PER_INQ_MIN_MAX_PERIOD      HCI_PER_INQ_MIN_MAX_PERIOD
  #define BTM_PER_INQ_MAX_MAX_PERIOD      HCI_PER_INQ_MAX_MAX_PERIOD
  #define BTM_PER_INQ_MIN_MIN_PERIOD      HCI_PER_INQ_MIN_MIN_PERIOD
  #define BTM_PER_INQ_MAX_MIN_PERIOD      HCI_PER_INQ_MAX_MIN_PERIOD
  #define BTM_MAX_INQUIRY_LENGTH          HCI_MAX_INQUIRY_LENGTH
  #define BTM_MIN_INQUIRY_LEN             0x01
  
  #define BTM_MIN_INQ_TX_POWER    -70
  #define BTM_MAX_INQ_TX_POWER    20
  
  typedef struct {
  UINT32          inq_count;          /* Used for determining if a response has already been      */
  /* received for the current inquiry operation. (We do not   */
  /* want to flood the caller with multiple responses from    */
  /* the same device.                                         */
  BD_ADDR         bd_addr;
  } tINQ_BDADDR;
  
  typedef struct {
  UINT32          time_of_resp;
  UINT32          inq_count;          /* "timestamps" the entry with a particular inquiry count   */
  /* Used for determining if a response has already been      */
  /* received for the current inquiry operation. (We do not   */
  /* want to flood the caller with multiple responses from    */
  /* the same device.                                         */
  tBTM_INQ_INFO   inq_info;
  BOOLEAN         in_use;
  
  #if (BLE_INCLUDED == TRUE)
  BOOLEAN         scan_rsp;
  #endif
  } tINQ_DB_ENT;
  
  
  enum {
  INQ_NONE,
  INQ_LE_OBSERVE,
  INQ_GENERAL
  };
  typedef UINT8 tBTM_INQ_TYPE;
  
  typedef struct {
      tBTM_CMPL_CB *p_remname_cmpl_cb;
  
  #define BTM_EXT_RMT_NAME_TIMEOUT    40
  
  
      TIMER_LIST_ENT  rmt_name_timer_ent;
  
      UINT16           discoverable_mode;
      UINT16           connectable_mode;
      UINT16           page_scan_window;
      UINT16           page_scan_period;
      UINT16           inq_scan_window;
      UINT16           inq_scan_period;
      UINT16           inq_scan_type;
      UINT16           page_scan_type;        /* current page scan type */
      tBTM_INQ_TYPE    scan_type;
  
      BD_ADDR          remname_bda;           /* Name of bd addr for active remote name request */
  #define BTM_RMT_NAME_INACTIVE       0
  #define BTM_RMT_NAME_EXT            0x1     /* Initiated through API */
  #define BTM_RMT_NAME_SEC            0x2     /* Initiated internally by security manager */
  #define BTM_RMT_NAME_INQ            0x4     /* Remote name initiated internally by inquiry */
      BOOLEAN          remname_active;        /* State of a remote name request by external API */
  
      tBTM_CMPL_CB    *p_inq_cmpl_cb;
      tBTM_INQ_RESULTS_CB *p_inq_results_cb;
      tBTM_CMPL_CB    *p_inq_ble_cmpl_cb;     /*completion callback exclusively for LE Observe*/
      tBTM_INQ_RESULTS_CB *p_inq_ble_results_cb;/*results callback exclusively for LE observe*/
      tBTM_CMPL_CB    *p_inqfilter_cmpl_cb;   /* Called (if not NULL) after inquiry filter completed */
      UINT32           inq_counter;           /* Counter incremented each time an inquiry completes */
      /* Used for determining whether or not duplicate devices */
      /* have responded to the same inquiry */
      TIMER_LIST_ENT   inq_timer_ent;
      tINQ_BDADDR     *p_bd_db;               /* Pointer to memory that holds bdaddrs */
      UINT16           num_bd_entries;        /* Number of entries in database */
      UINT16           max_bd_entries;        /* Maximum number of entries that can be stored */
      tINQ_DB_ENT      inq_db[BTM_INQ_DB_SIZE];
      tBTM_INQ_PARMS   inqparms;              /* Contains the parameters for the current inquiry */
      tBTM_INQUIRY_CMPL inq_cmpl_info;        /* Status and number of responses from the last inquiry */
  
      UINT16           per_min_delay;         /* Current periodic minimum delay */
      UINT16           per_max_delay;         /* Current periodic maximum delay */
      BOOLEAN          inqfilt_active;
      UINT8            pending_filt_complete_event; /* to take care of btm_event_filter_complete corresponding to */
      /* inquiry that has been cancelled*/
      UINT8            inqfilt_type;          /* Contains the inquiry filter type (BD ADDR, COD, or Clear) */
  
  #define BTM_INQ_INACTIVE_STATE      0
  #define BTM_INQ_CLR_FILT_STATE      1   /* Currently clearing the inquiry filter preceeding the inquiry request */
      /* (bypassed if filtering is not used)                                  */
  #define BTM_INQ_SET_FILT_STATE      2   /* Sets the new filter (or turns off filtering) in this state */
  #define BTM_INQ_ACTIVE_STATE        3   /* Actual inquiry or periodic inquiry is in progress */
  #define BTM_INQ_REMNAME_STATE       4   /* Remote name requests are active  */
  
      UINT8            state;             /* Current state that the inquiry process is in */
      UINT8            inq_active;        /* Bit Mask indicating type of inquiry is active */
      BOOLEAN          no_inc_ssp;        /* TRUE, to stop inquiry on incoming SSP */
  #if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
      btm_inq_state    next_state;        /*interleaving state to determine next mode to be inquired*/
  #endif
  } tBTM_INQUIRY_VAR_ST;
  
  /* The MSB of the clock offset field indicates that the offset is valid if TRUE */
  #define BTM_CLOCK_OFFSET_VALID      0x8000
  
  /* Define the structures needed by security management
  */
  
  #define BTM_SEC_INVALID_HANDLE  0xFFFF
  
  typedef UINT8 *BTM_BD_NAME_PTR;                        /* Pointer to Device name */
  
  /* Security callback is called by this unit when security
  **   procedures are completed.  Parameters are
  **              BD Address of remote
  **              Result of the operation
  */
  typedef tBTM_SEC_CBACK tBTM_SEC_CALLBACK;
  
  #define BTM_DATA_HANDLE_MASK 0x0FFF
  
  #define BTMD_GET_HANDLE(u16) (UINT16)((u16) & BTM_DATA_HANDLE_MASK)
  
  typedef void (tBTM_SCO_IND_CBACK) (UINT16 sco_inx) ;
  
  /* MACROs to convert from SCO packet types mask to ESCO and back */
  #define BTM_SCO_PKT_TYPE_MASK   (   HCI_PKT_TYPES_MASK_HV1      \
                                   |  HCI_PKT_TYPES_MASK_HV2      \
                                   |  HCI_PKT_TYPES_MASK_HV3)
  
  /* Mask defining only the SCO types of an esco packet type */
  #define BTM_ESCO_PKT_TYPE_MASK  (   HCI_ESCO_PKT_TYPES_MASK_HV1 \
                                   |  HCI_ESCO_PKT_TYPES_MASK_HV2 \
                                   |  HCI_ESCO_PKT_TYPES_MASK_HV3)
  
  #define BTM_SCO_2_ESCO(scotype)  ((UINT16)(((scotype) & BTM_SCO_PKT_TYPE_MASK) >> 5))
  #define BTM_ESCO_2_SCO(escotype) ((UINT16)(((escotype) & BTM_ESCO_PKT_TYPE_MASK) << 5))
  
  /* Define masks for supported and exception 2.0 SCO packet types
  */
  #define BTM_SCO_SUPPORTED_PKTS_MASK      (HCI_ESCO_PKT_TYPES_MASK_HV1       | \
                                            HCI_ESCO_PKT_TYPES_MASK_HV2       | \
                                            HCI_ESCO_PKT_TYPES_MASK_HV3       | \
                                            HCI_ESCO_PKT_TYPES_MASK_EV3       | \
                                            HCI_ESCO_PKT_TYPES_MASK_EV4       | \
                                            HCI_ESCO_PKT_TYPES_MASK_EV5)
  
  #define BTM_SCO_EXCEPTION_PKTS_MASK      (HCI_ESCO_PKT_TYPES_MASK_NO_2_EV3  | \
                                            HCI_ESCO_PKT_TYPES_MASK_NO_3_EV3  | \
                                            HCI_ESCO_PKT_TYPES_MASK_NO_2_EV5  | \
                                            HCI_ESCO_PKT_TYPES_MASK_NO_3_EV5)
  
  
  #define BTM_SCO_ROUTE_UNKNOWN       0xff
  
  /* Define the structure that contains (e)SCO data */
  typedef struct {
      tBTM_ESCO_CBACK    *p_esco_cback;   /* Callback for eSCO events     */
      tBTM_ESCO_PARAMS    setup;
      tBTM_ESCO_DATA      data;           /* Connection complete information */
      UINT8               hci_status;
  } tBTM_ESCO_INFO;
  
  /* Define the structure used for SCO Management
  */
  typedef struct {
      tBTM_ESCO_INFO   esco;              /* Current settings             */
  #if BTM_SCO_HCI_INCLUDED == TRUE
  #define BTM_SCO_XMIT_QUEUE_THRS         20
      fixed_queue_t   *xmit_data_q;       /* SCO data transmitting queue  */
      INT16           sent_not_acked;
  #endif
      tBTM_SCO_CB     *p_conn_cb;         /* Callback for when connected  */
      tBTM_SCO_CB     *p_disc_cb;         /* Callback for when disconnect */
      UINT16           state;             /* The state of the SCO link    */
      UINT16           hci_handle;        /* HCI Handle                   */
      BOOLEAN          is_orig;           /* TRUE if the originator       */
      BOOLEAN          rem_bd_known;      /* TRUE if remote BD addr known */
  
  } tSCO_CONN;
  
  /* SCO Management control block */
  typedef struct {
      tBTM_SCO_IND_CBACK  *app_sco_ind_cb;
  #if BTM_SCO_HCI_INCLUDED == TRUE
      tBTM_SCO_DATA_CB     *p_data_cb;        /* Callback for SCO data over HCI */
      UINT32               xmit_window_size; /* Total SCO window in bytes  */
      UINT16               num_lm_sco_bufs;
  #endif
      tSCO_CONN            sco_db[BTM_MAX_SCO_LINKS];
      tBTM_ESCO_PARAMS     def_esco_parms;
      BD_ADDR              xfer_addr;
      UINT16               sco_disc_reason;
      BOOLEAN              esco_supported;    /* TRUE if 1.2 cntlr AND supports eSCO links */
      tBTM_SCO_TYPE        desired_sco_mode;
      tBTM_SCO_TYPE        xfer_sco_type;
      tBTM_SCO_PCM_PARAM   sco_pcm_param;
      tBTM_SCO_CODEC_TYPE  codec_in_use;      /* None, CVSD, MSBC, etc. */
  #if BTM_SCO_HCI_INCLUDED == TRUE
      tBTM_SCO_ROUTE_TYPE  sco_path;
  #endif
  
  } tSCO_CB;
  
  
  #if BTM_SCO_INCLUDED == TRUE
  void     btm_set_sco_ind_cback( tBTM_SCO_IND_CBACK *sco_ind_cb );
  void     btm_accept_sco_link(UINT16 sco_inx, tBTM_ESCO_PARAMS *p_setup,
                               tBTM_SCO_CB *p_conn_cb, tBTM_SCO_CB *p_disc_cb);
  void     btm_reject_sco_link(UINT16 sco_inx );
  void btm_sco_chk_pend_rolechange (UINT16 hci_handle);
  #else
  #define btm_accept_sco_link(sco_inx, p_setup, p_conn_cb, p_disc_cb)
  #define btm_reject_sco_link(sco_inx)
  #define btm_set_sco_ind_cback(sco_ind_cb)
  #define btm_sco_chk_pend_rolechange(hci_handle)
  #endif  /* BTM_SCO_INCLUDED */
  
  /*
  ** Define structure for Security Service Record.
  ** A record exists for each service registered with the Security Manager
  */
  #define BTM_SEC_OUT_FLAGS   (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT | BTM_SEC_OUT_AUTHORIZE)
  #define BTM_SEC_IN_FLAGS    (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | BTM_SEC_IN_AUTHORIZE)
  
  #define BTM_SEC_OUT_LEVEL4_FLAGS   (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT | \
                                          BTM_SEC_OUT_MITM | BTM_SEC_MODE4_LEVEL4)
  
  #define BTM_SEC_IN_LEVEL4_FLAGS    (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | \
                                          BTM_SEC_IN_MITM | BTM_SEC_MODE4_LEVEL4)
  
  typedef struct {
      UINT32          mx_proto_id;        /* Service runs over this multiplexer protocol */
      UINT32          orig_mx_chan_id;    /* Channel on the multiplexer protocol    */
      UINT32          term_mx_chan_id;    /* Channel on the multiplexer protocol    */
      UINT16          psm;                /* L2CAP PSM value */
      UINT16          security_flags;     /* Bitmap of required security features */
      UINT8           service_id;         /* Passed in authorization callback */
  #if (L2CAP_UCD_INCLUDED == TRUE)
      UINT16          ucd_security_flags; /* Bitmap of required security features for UCD */
  #endif
  #if BTM_SEC_SERVICE_NAME_LEN > 0
      UINT8           orig_service_name[BTM_SEC_SERVICE_NAME_LEN + 1];
      UINT8           term_service_name[BTM_SEC_SERVICE_NAME_LEN + 1];
  #endif
  } tBTM_SEC_SERV_REC;
  
  #if BLE_INCLUDED == TRUE
  /* LE Security information of device in Slave Role */
  typedef struct {
      BT_OCTET16          irk;            /* peer diverified identity root */
      BT_OCTET16          pltk;           /* peer long term key */
      BT_OCTET16          pcsrk;          /* peer SRK peer device used to secured sign local data  */
  
      BT_OCTET16          lltk;           /* local long term key */
      BT_OCTET16          lcsrk;          /* local SRK peer device used to secured sign local data  */
  
      BT_OCTET8           rand;           /* random vector for LTK generation */
      UINT16              ediv;           /* LTK diversifier of this slave device */
      UINT16              div;            /* local DIV  to generate local LTK=d1(ER,DIV,0) and CSRK=d1(ER,DIV,1)  */
      UINT8               sec_level;      /* local pairing security level */
      UINT8               key_size;       /* key size of the LTK delivered to peer device */
      UINT8               srk_sec_level;  /* security property of peer SRK for this device */
      UINT8               local_csrk_sec_level;  /* security property of local CSRK for this device */
  
      UINT32              counter;        /* peer sign counter for verifying rcv signed cmd */
      UINT32              local_counter;  /* local sign counter for sending signed write cmd*/
  } tBTM_SEC_BLE_KEYS;
  
  typedef struct {
      BD_ADDR pseudo_addr; /* LE pseudo address of the device if different from device address  */
      tBLE_ADDR_TYPE      ble_addr_type;  /* LE device type: public or random address */
      tBLE_ADDR_TYPE      static_addr_type;   /* static address type */
      BD_ADDR             static_addr;    /* static address */
  
  #define BTM_WHITE_LIST_BIT          0x01
  #define BTM_RESOLVING_LIST_BIT      0x02
      UINT8               in_controller_list;   /* in controller resolving list or not */
      UINT8               resolving_list_index;
  #if BLE_PRIVACY_SPT == TRUE
      BD_ADDR             cur_rand_addr;  /* current random address */
  
  #define BTM_BLE_ADDR_PSEUDO         0   /* address index device record */
  #define BTM_BLE_ADDR_RRA            1   /* cur_rand_addr */
  #define BTM_BLE_ADDR_STATIC         2   /* static_addr  */
      UINT8               active_addr_type;
  #endif
  
  #if SMP_INCLUDED == TRUE
      tBTM_LE_KEY_TYPE    key_type;       /* bit mask of valid key types in record */
      tBTM_SEC_BLE_KEYS   keys;           /* LE device security info in slave rode */
  #if (SMP_SLAVE_CON_PARAMS_UPD_ENABLE == TRUE)
      bool skip_update_conn_param;        /* skip update connection paraams or not*/
  #endif
      UINT16 auth_mode;                   /* Authentication mode */
  #endif
  #if (BLE_PRIVACY_SPT == TRUE)
      tBLE_ADDR_TYPE      current_addr_type; /* current adv addr type*/
      BD_ADDR             current_addr;      /* current adv addr*/
      bool                current_addr_valid; /* current addr info is valid or not*/
  #endif
  } tBTM_SEC_BLE;
  
  
  #endif  /* BLE_INCLUDED */
  
  /* Peering bond type */
  enum {
      BOND_TYPE_UNKNOWN,
      BOND_TYPE_PERSISTENT,
      BOND_TYPE_TEMPORARY
  };
  typedef UINT8 tBTM_BOND_TYPE;
  
  /*
  ** Define structure for Security Device Record.
  ** A record exists for each device authenticated with this device
  */
  typedef struct {
      tBTM_SEC_SERV_REC   *p_cur_service;
      tBTM_SEC_CALLBACK   *p_callback;
      void                *p_ref_data;
      UINT32               timestamp;         /* Timestamp of the last connection   */
      UINT32               trusted_mask[BTM_SEC_SERVICE_ARRAY_SIZE];  /* Bitwise OR of trusted services     */
      UINT16               hci_handle;        /* Handle to connection when exists   */
      UINT16               clock_offset;      /* Latest known clock offset          */
      BD_ADDR              bd_addr;           /* BD_ADDR of the device              */
      DEV_CLASS            dev_class;         /* DEV_CLASS of the device            */
      LINK_KEY             link_key;          /* Device link key                    */
      UINT8                pin_code_length;   /* Length of the pin_code used for paring */
  
  #define BTM_SEC_AUTHORIZED      BTM_SEC_FLAG_AUTHORIZED     /* 0x01 */
  #define BTM_SEC_AUTHENTICATED   BTM_SEC_FLAG_AUTHENTICATED  /* 0x02 */
  #define BTM_SEC_ENCRYPTED       BTM_SEC_FLAG_ENCRYPTED      /* 0x04 */
  #define BTM_SEC_NAME_KNOWN      0x08
  #define BTM_SEC_LINK_KEY_KNOWN  BTM_SEC_FLAG_LKEY_KNOWN /* 0x10 */
  #define BTM_SEC_LINK_KEY_AUTHED BTM_SEC_FLAG_LKEY_AUTHED    /* 0x20 */
  #define BTM_SEC_ROLE_SWITCHED   0x40
  #define BTM_SEC_IN_USE          0x80
      /* LE link security flag */
  #define BTM_SEC_LE_AUTHENTICATED   0x0200   /* LE link is encrypted after pairing with MITM */
  #define BTM_SEC_LE_ENCRYPTED       0x0400   /* LE link is encrypted */
  #define BTM_SEC_LE_NAME_KNOWN      0x0800   /* not used */
  #define BTM_SEC_LE_LINK_KEY_KNOWN  0x1000   /* bonded with peer (peer LTK and/or SRK is saved) */
  #define BTM_SEC_LE_LINK_KEY_AUTHED 0x2000   /* pairing is done with MITM */
  #define BTM_SEC_16_DIGIT_PIN_AUTHED 0x4000   /* pairing is done with 16 digit pin */
  
      UINT16           sec_flags;          /* Current device security state      */
  
      tBTM_BD_NAME    sec_bd_name;        /* User friendly name of the device. (may be truncated to save space in dev_rec table) */
      BD_FEATURES     features[HCI_EXT_FEATURES_PAGE_MAX + 1];           /* Features supported by the device */
      UINT8           num_read_pages;
  
  #define BTM_SEC_STATE_IDLE               0
  #define BTM_SEC_STATE_AUTHENTICATING     1
  #define BTM_SEC_STATE_ENCRYPTING         2
  #define BTM_SEC_STATE_GETTING_NAME       3
  #define BTM_SEC_STATE_AUTHORIZING        4
  #define BTM_SEC_STATE_SWITCHING_ROLE     5
  #define BTM_SEC_STATE_DISCONNECTING      6 /* disconnecting BR/EDR */
  #define BTM_SEC_STATE_DELAY_FOR_ENC      7 /* delay to check for encryption to work around */
      /* controller problems */
  #define BTM_SEC_STATE_DISCONNECTING_BLE  8 /* disconnecting BLE */
  #define BTM_SEC_STATE_DISCONNECTING_BOTH 9 /* disconnecting BR/EDR and BLE */
  
      UINT8       sec_state;              /* Operating state                    */
      BOOLEAN     is_originator;          /* TRUE if device is originating connection */
  #if (L2CAP_UCD_INCLUDED == TRUE)
      BOOLEAN     is_ucd;                 /* TRUE if device is sending or receiving UCD */
      /* if incoming security failed, received UCD will be discarded */
  #endif
      BOOLEAN     role_master;            /* TRUE if current mode is master     */
      UINT16      security_required;      /* Security required for connection   */
      BOOLEAN     link_key_not_sent;      /* link key notification has not been sent waiting for name */
      UINT8       link_key_type;          /* Type of key used in pairing   */
      BOOLEAN     link_key_changed;       /* Changed link key during current connection */
  
  #define BTM_MAX_PRE_SM4_LKEY_TYPE   BTM_LKEY_TYPE_REMOTE_UNIT /* the link key type used by legacy pairing */
  
  #define BTM_SM4_UNKNOWN     0x00
  #define BTM_SM4_KNOWN       0x10
  #define BTM_SM4_TRUE        0x11
  #define BTM_SM4_REQ_PEND    0x08        /* set this bit when getting remote features */
  #define BTM_SM4_UPGRADE     0x04        /* set this bit when upgrading link key */
  #define BTM_SM4_RETRY       0x02        /* set this bit to retry on HCI_ERR_KEY_MISSING or HCI_ERR_LMP_ERR_TRANS_COLLISION */
  #define BTM_SM4_DD_ACP      0x20        /* set this bit to indicate peer initiated dedicated bonding */
  #define BTM_SM4_CONN_PEND   0x40        /* set this bit to indicate accepting acl conn; to be cleared on btm_acl_created */
      UINT8       sm4;                    /* BTM_SM4_TRUE, if the peer supports SM4 */
      tBTM_IO_CAP rmt_io_caps;            /* IO capability of the peer device */
      tBTM_AUTH_REQ rmt_auth_req;         /* the auth_req flag as in the IO caps rsp evt */
      BOOLEAN     remote_supports_secure_connections;
      BOOLEAN     remote_features_needed; /* set to true if the local device is in */
      /* "Secure Connections Only" mode and it receives */
      /* HCI_IO_CAPABILITY_REQUEST_EVT from the peer before */
      /* it knows peer's support for Secure Connections */
  
      UINT16              ble_hci_handle;         /* use in DUMO connection */
      UINT8               enc_key_size;           /* current link encryption key size */
      tBT_DEVICE_TYPE     device_type;
      BOOLEAN             new_encryption_key_is_p256; /* Set to TRUE when the newly generated LK
                                                      ** is generated from P-256.
                                                      ** Link encrypted with such LK can be used
                                                      ** for SM over BR/EDR.
                                                      */
      BOOLEAN no_smp_on_br;       /* if set to TRUE then SMP on BR/EDR doesn't */
      /* work, i.e. link keys crosspairing */
      /* SC BR/EDR->SC LE doesn't happen */
      tBTM_BOND_TYPE bond_type;   /* peering bond type */
  
  #if BLE_INCLUDED == TRUE
      tBTM_SEC_BLE        ble;
      tBTM_LE_CONN_PRAMS  conn_params;
  #endif
  
  // btla-specific ++
  #if BTM_DISC_DURING_RS == TRUE
  #define BTM_SEC_RS_NOT_PENDING          0           /* Role Switch not in progress */
  #define BTM_SEC_RS_PENDING              1           /* Role Switch in progress */
  #define BTM_SEC_DISC_PENDING            2           /* Disconnect is pending */
      UINT8           rs_disc_pending;
  #endif
  // btla-specific --
  #define BTM_SEC_NO_LAST_SERVICE_ID      0
      UINT8           last_author_service_id;         /* ID of last serviced authorized: Reset after each l2cap connection */
      BOOLEAN         enc_init_by_we;
  } tBTM_SEC_DEV_REC;
  
  #define BTM_SEC_IS_SM4(sm) ((BOOLEAN)(BTM_SM4_TRUE == ((sm)&BTM_SM4_TRUE)))
  #define BTM_SEC_IS_SM4_LEGACY(sm) ((BOOLEAN)(BTM_SM4_KNOWN == ((sm)&BTM_SM4_TRUE)))
  #define BTM_SEC_IS_SM4_UNKNOWN(sm) ((BOOLEAN)(BTM_SM4_UNKNOWN == ((sm)&BTM_SM4_TRUE)))
  
  #define BTM_SEC_LE_MASK    (BTM_SEC_LE_AUTHENTICATED|BTM_SEC_LE_ENCRYPTED|BTM_SEC_LE_LINK_KEY_KNOWN|BTM_SEC_LE_LINK_KEY_AUTHED)
  
  /*
  ** Define device configuration structure
  */
  typedef struct {
  #if BTM_MAX_LOC_BD_NAME_LEN > 0
      tBTM_LOC_BD_NAME bd_name;                    /* local Bluetooth device name */
  #endif
      BOOLEAN          pin_type;                   /* TRUE if PIN type is fixed */
      UINT8            pin_code_len;               /* Bonding information */
      PIN_CODE         pin_code;                   /* PIN CODE if pin type is fixed */
      BOOLEAN          connectable;                /* If TRUE page scan should be enabled */
      UINT8            def_inq_scan_mode;          /* ??? limited/general/none */
  } tBTM_CFG;
  
  enum {
      BTM_PM_ST_ACTIVE  = BTM_PM_STS_ACTIVE,
      BTM_PM_ST_HOLD    = BTM_PM_STS_HOLD,
      BTM_PM_ST_SNIFF   = BTM_PM_STS_SNIFF,
      BTM_PM_ST_PARK    = BTM_PM_STS_PARK,
      BTM_PM_ST_PENDING = BTM_PM_STS_PENDING
  };
  typedef UINT8 tBTM_PM_STATE;
  
  enum {
      BTM_PM_SET_MODE_EVT,    /* Set power mode API is called. */
      BTM_PM_UPDATE_EVT,
      BTM_PM_RD_MODE_EVT     /* Read power mode API is called. */
  };
  typedef UINT8 tBTM_PM_EVENT;
  
  typedef struct {
      UINT16          event;
      UINT16          len;
      UINT8           link_ind;
  } tBTM_PM_MSG_DATA;
  
  typedef struct {
      UINT8 hci_status;
      UINT8 mode;
      UINT16 interval;
  } tBTM_PM_MD_CHG_DATA;
  
  typedef struct {
      UINT8          pm_id;      /* the entity that calls SetPowerMode API */
      tBTM_PM_PWR_MD *p_pmd;
  } tBTM_PM_SET_MD_DATA;
  
  typedef struct {
      void        *p_data;
      UINT8        link_ind;
  } tBTM_PM_SM_DATA;
  
  typedef struct {
      tBTM_PM_PWR_MD req_mode[BTM_MAX_PM_RECORDS + 1]; /* the desired mode and parameters of the connection*/
      tBTM_PM_PWR_MD set_mode;  /* the mode and parameters sent down to the host controller. */
      UINT16         interval;  /* the interval from last mode change event. */
  #if (BTM_SSR_INCLUDED == TRUE)
      UINT16         max_lat;   /* stored SSR maximum latency */
      UINT16         min_rmt_to;/* stored SSR minimum remote timeout */
      UINT16         min_loc_to;/* stored SSR minimum local timeout */
  #endif
      tBTM_PM_STATE  state;     /* contains the current mode of the connection */
      BOOLEAN        chg_ind;   /* a request change indication */
  } tBTM_PM_MCB;
  
  #define BTM_PM_REC_NOT_USED 0
  typedef struct {
      tBTM_PM_STATUS_CBACK *cback;/* to notify the registered party of mode change event */
      UINT8                 mask; /* registered request mask. 0, if this entry is not used */
  } tBTM_PM_RCB;
  
  enum {
      BTM_BLI_ACL_UP_EVT,
      BTM_BLI_ACL_DOWN_EVT,
      BTM_BLI_PAGE_EVT,
      BTM_BLI_PAGE_DONE_EVT,
      BTM_BLI_INQ_EVT,
      BTM_BLI_INQ_CANCEL_EVT,
      BTM_BLI_INQ_DONE_EVT
  };
  typedef UINT8 tBTM_BLI_EVENT;
  
  /* Pairing State */
  enum {
      BTM_PAIR_STATE_IDLE,                        /* Idle                                         */
      BTM_PAIR_STATE_GET_REM_NAME,                /* Getting the remote name (to check for SM4)   */
      BTM_PAIR_STATE_WAIT_PIN_REQ,                /* Started authentication, waiting for PIN req (PIN is pre-fetched) */
      BTM_PAIR_STATE_WAIT_LOCAL_PIN,              /* Waiting for local PIN code                   */
      BTM_PAIR_STATE_WAIT_NUMERIC_CONFIRM,        /* Waiting user 'yes' to numeric confirmation   */
      BTM_PAIR_STATE_KEY_ENTRY,                   /* Key entry state (we are a keyboard)          */
      BTM_PAIR_STATE_WAIT_LOCAL_OOB_RSP,          /* Waiting for local response to peer OOB data  */
      BTM_PAIR_STATE_WAIT_LOCAL_IOCAPS,           /* Waiting for local IO capabilities and OOB data */
      BTM_PAIR_STATE_INCOMING_SSP,                /* Incoming SSP (got peer IO caps when idle)    */
      BTM_PAIR_STATE_WAIT_AUTH_COMPLETE,          /* All done, waiting authentication cpmplete    */
      BTM_PAIR_STATE_WAIT_DISCONNECT              /* Waiting to disconnect the ACL                */
  };
  typedef UINT8 tBTM_PAIRING_STATE;
  
  #define BTM_PAIR_FLAGS_WE_STARTED_DD    0x01    /* We want to do dedicated bonding              */
  #define BTM_PAIR_FLAGS_PEER_STARTED_DD  0x02    /* Peer initiated dedicated bonding             */
  #define BTM_PAIR_FLAGS_DISC_WHEN_DONE   0x04    /* Disconnect when done     */
  #define BTM_PAIR_FLAGS_PIN_REQD         0x08    /* set this bit when pin_callback is called     */
  #define BTM_PAIR_FLAGS_PRE_FETCH_PIN    0x10    /* set this bit when pre-fetch pin     */
  #define BTM_PAIR_FLAGS_REJECTED_CONNECT 0x20    /* set this bit when rejected incoming connection  */
  #define BTM_PAIR_FLAGS_WE_CANCEL_DD     0x40    /* set this bit when cancelling a bonding procedure */
  #define BTM_PAIR_FLAGS_LE_ACTIVE        0x80    /* use this bit when SMP pairing is active */
  
  
  typedef struct {
      BOOLEAN             is_mux;
      BD_ADDR             bd_addr;
      UINT16              psm;
      BOOLEAN             is_orig;
      tBTM_SEC_CALLBACK   *p_callback;
      void                *p_ref_data;
      UINT32              mx_proto_id;
      UINT32              mx_chan_id;
      tBT_TRANSPORT       transport;
  } tBTM_SEC_QUEUE_ENTRY;
  
  #if (L2CAP_UCD_INCLUDED == TRUE)
  
  #define CONN_ORIENT_TERM                0x00    /* incoming connection oriented */
  #define CONN_ORIENT_ORIG                0x01    /* outgoing connection oriented */
  #define CONNLESS_TERM                   0x02    /* incoming connectionless      */
  #define CONNLESS_ORIG                   0x03    /* outgoing connectionless      */
  #define CONNECTION_TYPE_ORIG_MASK       0x01    /* mask for direction           */
  #define CONNECTION_TYPE_CONNLESS_MASK   0x02    /* mask for connectionless or not */
  typedef UINT8 CONNECTION_TYPE;
  
  #else
  
  #define CONN_ORIENT_TERM                FALSE
  #define CONN_ORIENT_ORIG                TRUE
  typedef BOOLEAN CONNECTION_TYPE;
  
  #endif /* (L2CAP_UCD_INCLUDED == TRUE) */
  
  /* Define a structure to hold all the BTM data
  */
  
  #define BTM_STATE_BUFFER_SIZE  5                  /* size of state buffer */
  
  typedef struct {
      tBTM_CFG    cfg;                        /* Device configuration */
  
      /****************************************************
      **      ACL Management
      ****************************************************/
      tACL_CONN   acl_db[MAX_L2CAP_LINKS];
  #if (CLASSIC_BT_INCLUDED == TRUE)
      UINT8       btm_scn[BTM_MAX_SCN];        /* current SCNs: TRUE if SCN is in use */
  #endif  ///CLASSIC_BT_INCLUDED == TRUE
      UINT16      btm_def_link_policy;
      UINT16      btm_def_link_super_tout;
  
      tBTM_BL_EVENT_MASK     bl_evt_mask;
      tBTM_BL_CHANGE_CB     *p_bl_changed_cb;    /* Callback for when Busy Level changed */
  
      /****************************************************
      **      Power Management
      ****************************************************/
      tBTM_PM_MCB pm_mode_db[MAX_L2CAP_LINKS];   /* per ACL link */
      tBTM_PM_RCB pm_reg_db[BTM_MAX_PM_RECORDS + 1]; /* per application/module */
      UINT8       pm_pend_link;  /* the index of acl_db, which has a pending PM cmd */
      UINT8       pm_pend_id;    /* the id pf the module, which has a pending PM cmd */
  
      /*****************************************************
      **      Device control
      *****************************************************/
      tBTM_DEVCB  devcb;
  
      /*****************************************************
      **      BLE Device controllers
      *****************************************************/
  #if (BLE_INCLUDED == TRUE)
      tBTM_BLE_CB             ble_ctr_cb;
  
      UINT16                  enc_handle;
      BT_OCTET8               enc_rand;   /* received rand value from LTK request*/
      UINT16                  ediv;       /* received ediv value from LTK request */
      UINT8                   key_size;
      tBTM_BLE_VSC_CB         cmn_ble_vsc_cb;
  #endif
  
      /* Packet types supported by the local device */
      UINT16      btm_acl_pkt_types_supported;
      UINT16      btm_sco_pkt_types_supported;
  
  
      /*****************************************************
      **      Inquiry
      *****************************************************/
      tBTM_INQUIRY_VAR_ST     btm_inq_vars;
  
      /*****************************************************
      **      SCO Management
      *****************************************************/
  #if BTM_SCO_INCLUDED == TRUE
      tSCO_CB             sco_cb;
  #endif
  
      /*****************************************************
      **      Security Management
      *****************************************************/
      tBTM_APPL_INFO          api;
  
  #define BTM_SEC_MAX_RMT_NAME_CALLBACKS  2
  
      tBTM_RMT_NAME_CALLBACK  *p_rmt_name_callback[BTM_SEC_MAX_RMT_NAME_CALLBACKS];
  #if (SMP_INCLUDED == TRUE)
      tBTM_SEC_DEV_REC        *p_collided_dev_rec;
  #endif  ///SMP_INCLUDED == TRUE
      TIMER_LIST_ENT           sec_collision_tle;
      UINT32                   collision_start_time;
      UINT32                   max_collision_delay;
      UINT32                   dev_rec_count;      /* Counter used for device record timestamp */
      UINT8                    security_mode;
      BOOLEAN                  pairing_disabled;
      BOOLEAN                  connect_only_paired;
      BOOLEAN                  security_mode_changed;  /* mode changed during bonding */
      BOOLEAN                  sec_req_pending;       /*   TRUE if a request is pending */
  #if (CLASSIC_BT_INCLUDED == TRUE)
      BOOLEAN                  pin_type_changed;       /* pin type changed during bonding */
  #endif  ///CLASSIC_BT_INCLUDED == TRUE
  #if (SMP_INCLUDED == TRUE)
  #if (CLASSIC_BT_INCLUDED == TRUE)
  // btla-specific ++
  #ifdef PORCHE_PAIRING_CONFLICT
      UINT8                    pin_code_len_saved;     /* for legacy devices */
  #endif
  // btla-specific --
  
      UINT8                    pin_code_len;  /* for legacy devices */
      PIN_CODE                 pin_code;      /* for legacy devices */
      UINT8                    disc_reason;   /* for legacy devices */
      UINT16                   disc_handle;   /* for legacy devices */
  #endif  ///CLASSIC_BT_INCLUDED == TRUE
      tBTM_PAIRING_STATE       pairing_state; /* The current pairing state    */
      UINT8                    pairing_flags; /* The current pairing flags    */
      BD_ADDR                  pairing_bda;   /* The device currently pairing */
      TIMER_LIST_ENT           pairing_tle;   /* Timer for pairing process    */
  
  #endif  ///SMP_INCLUDED == TRUE
  #if SMP_INCLUDED == TRUE || CLASSIC_BT_INCLUDED == TRUE
      tBTM_SEC_SERV_REC        sec_serv_rec[BTM_SEC_MAX_SERVICE_RECORDS];
  #endif // SMP_INCLUDED == TRUE || BT_CLASSIC_ENABLED == TRUE
      tBTM_SEC_DEV_REC         sec_dev_rec[BTM_SEC_MAX_DEVICE_RECORDS];
      tBTM_SEC_SERV_REC       *p_out_serv;
      tBTM_MKEY_CALLBACK      *mkey_cback;
  
      BD_ADDR                  connecting_bda;
      DEV_CLASS                connecting_dc;
  
      UINT8                   acl_disc_reason;
      UINT8                   trace_level;
      UINT8                   busy_level; /* the current busy level */
      BOOLEAN                 is_paging;  /* TRUE, if paging is in progess */
      BOOLEAN                 is_inquiry; /* TRUE, if inquiry is in progess */
      fixed_queue_t           *page_queue;
      BOOLEAN                 paging;
      BOOLEAN                 discing;
      fixed_queue_t           *sec_pending_q;  /* pending sequrity requests in tBTM_SEC_QUEUE_ENTRY format */
  #if  (!defined(BT_TRACE_VERBOSE) || (BT_TRACE_VERBOSE == FALSE))
      char state_temp_buffer[BTM_STATE_BUFFER_SIZE];
  #endif
  } tBTM_CB;
  
  typedef struct{
    //connection parameters update callback
    tBTM_UPDATE_CONN_PARAM_CBACK *update_conn_param_cb;
  }tBTM_CallbackFunc;
  
  extern tBTM_CallbackFunc conn_param_update_cb;
  /* security action for L2CAP COC channels */
  #define BTM_SEC_OK                1
  #define BTM_SEC_ENCRYPT           2    /* encrypt the link with current key */
  #define BTM_SEC_ENCRYPT_NO_MITM   3    /* unauthenticated encryption or better */
  #define BTM_SEC_ENCRYPT_MITM      4    /* authenticated encryption */
  #define BTM_SEC_ENC_PENDING       5    /* wait for link encryption pending */
  
  typedef UINT8 tBTM_SEC_ACTION;
  
  /*
  #ifdef __cplusplus
  extern "C"
  {
  #endif
  */
  
  #if BTM_DYNAMIC_MEMORY == FALSE
  extern tBTM_CB  btm_cb;
  #else
  extern tBTM_CB *btm_cb_ptr;
  #define btm_cb (*btm_cb_ptr)
  #endif
  
  /* Internal functions provided by btm_main.c
  ********************************************
  */
  void         btm_init (void);
  void         btm_free (void);
  
  /* Internal functions provided by btm_inq.c
  *******************************************
  */
  tBTM_STATUS  btm_initiate_rem_name (BD_ADDR remote_bda,
                                      tBTM_INQ_INFO *p_cur,
                                      UINT8 origin, UINT32 timeout,
                                      tBTM_CMPL_CB *p_cb);
  
  void         btm_process_remote_name (BD_ADDR bda, BD_NAME name, UINT16 evt_len,
                                        UINT8 hci_status);
  void         btm_inq_rmt_name_failed(void);
  
  /* Inquiry related functions */
  void         btm_clr_inq_db (BD_ADDR p_bda);
  void         btm_inq_db_init (void);
  void         btm_process_inq_results (UINT8 *p, UINT8 inq_res_mode);
  void         btm_process_inq_complete (UINT8 status, UINT8 mode);
  void         btm_process_cancel_complete(UINT8 status, UINT8 mode);
  void         btm_event_filter_complete (UINT8 *p);
  void         btm_inq_stop_on_ssp(void);
  void         btm_inq_clear_ssp(void);
  tINQ_DB_ENT *btm_inq_db_find (BD_ADDR p_bda);
  BOOLEAN      btm_inq_find_bdaddr (BD_ADDR p_bda);
  
  BOOLEAN btm_lookup_eir(BD_ADDR_PTR p_rem_addr);
  
  /* Internal functions provided by btm_acl.c
  ********************************************
  */
  void         btm_acl_init (void);
  void         btm_acl_created (BD_ADDR bda, DEV_CLASS dc, BD_NAME bdn,
                                UINT16 hci_handle, UINT8 link_role, tBT_TRANSPORT transport);
  void         btm_acl_removed (BD_ADDR bda, tBT_TRANSPORT transport);
  void         btm_acl_device_down (void);
  void         btm_acl_update_busy_level (tBTM_BLI_EVENT event);
  
  void         btm_cont_rswitch (tACL_CONN *p,
                                 tBTM_SEC_DEV_REC *p_dev_rec,
                                 UINT8 hci_status);
  
  UINT8        btm_handle_to_acl_index (UINT16 hci_handle);
  tACL_CONN    *btm_handle_to_acl (UINT16 hci_handle);
  void         btm_read_link_policy_complete (UINT8 *p);
  void         btm_read_rssi_complete (UINT8 *p);
  void         btm_read_tx_power_complete (UINT8 *p, BOOLEAN is_ble);
  void         btm_read_link_quality_complete (UINT8 *p);
  tBTM_STATUS  btm_set_packet_types (tACL_CONN *p, UINT16 pkt_types);
  void         btm_process_clk_off_comp_evt (UINT16 hci_handle, UINT16 clock_offset);
  void         btm_acl_role_changed (UINT8 hci_status, BD_ADDR bd_addr, UINT8 new_role);
  void         btm_acl_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable);
  UINT16       btm_get_acl_disc_reason_code (void);
  tBTM_STATUS  btm_remove_acl (BD_ADDR bd_addr, tBT_TRANSPORT transport);
  void         btm_read_remote_features_complete (UINT8 *p);
  void         btm_read_remote_ext_features_complete (UINT8 *p);
  void         btm_read_remote_ext_features_failed (UINT8 status, UINT16 handle);
  void         btm_read_remote_version_complete (UINT8 *p);
  void         btm_establish_continue (tACL_CONN *p_acl_cb);
  
  // btla-specific ++
  void         btm_acl_chk_peer_pkt_type_support (tACL_CONN *p, UINT16 *p_pkt_type);
  // btla-specific --
  /* Read maximum data packet that can be sent over current connection */
  UINT16 btm_get_max_packet_size (BD_ADDR addr);
  tACL_CONN *btm_bda_to_acl (BD_ADDR bda, tBT_TRANSPORT transport);
  BOOLEAN    btm_acl_notif_conn_collision (BD_ADDR bda);
  
  void btm_pm_reset(void);
  void btm_pm_sm_alloc(UINT8 ind);
  void btm_pm_proc_cmd_status(UINT8 status);
  void btm_pm_proc_mode_change (UINT8 hci_status, UINT16 hci_handle, UINT8 mode,
                                UINT16 interval);
  void btm_pm_proc_ssr_evt (UINT8 *p, UINT16 evt_len);
  #if BTM_SCO_INCLUDED == TRUE
  void btm_sco_chk_pend_unpark (UINT8 hci_status, UINT16 hci_handle);
  #if (BTM_SCO_HCI_INCLUDED == TRUE )
  void btm_sco_process_num_bufs (UINT16 num_lm_sco_bufs);
  void btm_sco_process_num_completed_pkts (UINT8 *p);
  #endif /* (BTM_SCO_HCI_INCLUDED == TRUE ) */
  #else
  #define btm_sco_chk_pend_unpark(hci_status, hci_handle)
  #endif /* BTM_SCO_INCLUDED */
  void btm_qos_setup_complete (UINT8 status, UINT16 handle, FLOW_SPEC *p_flow);
  
  
  /* Internal functions provided by btm_sco.c
  ********************************************
  */
  void btm_sco_init (void);
  void btm_sco_connected (UINT8 hci_status, BD_ADDR bda, UINT16 hci_handle,
                          tBTM_ESCO_DATA *p_esco_data);
  void btm_esco_proc_conn_chg (UINT8 status, UINT16 handle, UINT8 tx_interval,
                               UINT8 retrans_window, UINT16 rx_pkt_len,
                               UINT16 tx_pkt_len);
  void btm_sco_conn_req (BD_ADDR bda,  DEV_CLASS dev_class, UINT8 link_type);
  void btm_sco_removed (UINT16 hci_handle, UINT8 reason);
  void btm_sco_acl_removed (BD_ADDR bda);
  void btm_route_sco_data (BT_HDR *p_msg);
  BOOLEAN btm_is_sco_active (UINT16 handle);
  void btm_remove_sco_links (BD_ADDR bda);
  BOOLEAN btm_is_sco_active_by_bdaddr (BD_ADDR remote_bda);
  
  tBTM_SCO_TYPE btm_read_def_esco_mode (tBTM_ESCO_PARAMS *p_parms);
  UINT16  btm_find_scb_by_handle (UINT16 handle);
  void btm_sco_flush_sco_data(UINT16 sco_inx);
  
  /* Internal functions provided by btm_devctl.c
  **********************************************
  */
  void btm_dev_init (void);
  void btm_dev_timeout (TIMER_LIST_ENT *p_tle);
  void btm_read_local_name_complete (UINT8 *p, UINT16 evt_len);
  
  #if (BLE_INCLUDED == TRUE)
  void btm_ble_add_2_white_list_complete(UINT8 status);
  void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len);
  void btm_ble_clear_white_list_complete(UINT8 *p, UINT16 evt_len);
  BOOLEAN btm_ble_addr_resolvable(BD_ADDR rpa, tBTM_SEC_DEV_REC *p_dev_rec);
  tBTM_STATUS btm_ble_read_resolving_list_entry(tBTM_SEC_DEV_REC *p_dev_rec);
  BOOLEAN btm_ble_resolving_list_load_dev(tBTM_SEC_DEV_REC *p_dev_rec);
  void btm_ble_resolving_list_remove_dev(tBTM_SEC_DEV_REC *p_dev_rec);
  #endif  /* BLE_INCLUDED */
  
  /* Vendor Specific Command complete evt handler */
  void btm_vsc_complete (UINT8 *p, UINT16 cc_opcode, UINT16 evt_len,
                         tBTM_CMPL_CB *p_vsc_cplt_cback);
  void btm_inq_db_reset (void);
  void btm_vendor_specific_evt (UINT8 *p, UINT8 evt_len);
  void btm_delete_stored_link_key_complete (UINT8 *p);
  void btm_report_device_status (tBTM_DEV_STATUS status);
  void btm_set_afh_channels_complete (UINT8 *p);
  void btm_ble_set_channels_complete (UINT8 *p);
  
  /* Internal functions provided by btm_dev.c
  **********************************************
  */
  BOOLEAN btm_dev_support_switch (BD_ADDR bd_addr);
  
  tBTM_SEC_DEV_REC  *btm_sec_alloc_dev (BD_ADDR bd_addr);
  void              btm_sec_free_dev (tBTM_SEC_DEV_REC *p_dev_rec, tBT_TRANSPORT transport);
  tBTM_SEC_DEV_REC  *btm_find_dev (BD_ADDR bd_addr);
  tBTM_SEC_DEV_REC  *btm_find_or_alloc_dev (BD_ADDR bd_addr);
  tBTM_SEC_DEV_REC  *btm_find_dev_by_handle (UINT16 handle);
  tBTM_BOND_TYPE     btm_get_bond_type_dev(BD_ADDR bd_addr);
  BOOLEAN            btm_set_bond_type_dev(BD_ADDR bd_addr,
          tBTM_BOND_TYPE bond_type);
  
  /* Internal functions provided by btm_sec.c
  **********************************************
  */
  BOOLEAN btm_dev_support_switch (BD_ADDR bd_addr);
  tBTM_STATUS  btm_sec_l2cap_access_req (BD_ADDR bd_addr, UINT16 psm,
                                         UINT16 handle, CONNECTION_TYPE conn_type,
                                         tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
  tBTM_STATUS  btm_sec_mx_access_request (BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
                                          UINT32 mx_proto_id, UINT32 mx_chan_id,
                                          tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
  void  btm_sec_conn_req (UINT8 *bda, UINT8 *dc);
  void btm_create_conn_cancel_complete (UINT8 *p);
  void btm_read_linq_tx_power_complete (UINT8 *p);
  
  void  btm_sec_init (UINT8 sec_mode);
  void  btm_sec_dev_reset (void);
  void  btm_sec_abort_access_req (BD_ADDR bd_addr);
  void  btm_sec_auth_complete (UINT16 handle, UINT8 status);
  void  btm_sec_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable);
  void  btm_sec_connected (UINT8 *bda, UINT16 handle, UINT8 status, UINT8 enc_mode);
  tBTM_STATUS btm_sec_disconnect (UINT16 handle, UINT8 reason);
  void  btm_sec_disconnected (UINT16 handle, UINT8 reason);
  void  btm_sec_rmt_name_request_complete (UINT8 *bd_addr, UINT8 *bd_name, UINT8 status);
  void  btm_sec_rmt_host_support_feat_evt (UINT8 *p);
  void  btm_io_capabilities_req (UINT8 *p);
  void  btm_io_capabilities_rsp (UINT8 *p);
  void  btm_proc_sp_req_evt (tBTM_SP_EVT event, UINT8 *p);
  void  btm_keypress_notif_evt (UINT8 *p);
  void  btm_simple_pair_complete (UINT8 *p);
  void  btm_sec_link_key_notification (UINT8 *p_bda, UINT8 *p_link_key, UINT8 key_type);
  void  btm_sec_link_key_request (UINT8 *p_bda);
  void  btm_sec_pin_code_request (UINT8 *p_bda);
  void  btm_sec_update_clock_offset (UINT16 handle, UINT16 clock_offset);
  void  btm_sec_dev_rec_cback_event (tBTM_SEC_DEV_REC *p_dev_rec, UINT8 res, BOOLEAN is_le_transport);
  void btm_sec_set_peer_sec_caps (tACL_CONN *p_acl_cb, tBTM_SEC_DEV_REC *p_dev_rec);
  
  #if BLE_INCLUDED == TRUE
  void  btm_sec_clear_ble_keys (tBTM_SEC_DEV_REC  *p_dev_rec);
  BOOLEAN btm_sec_find_bonded_dev (UINT8 start_idx, UINT8 *p_found_idx, tBTM_SEC_DEV_REC **p_rec);
  BOOLEAN btm_sec_is_a_bonded_dev (BD_ADDR bda);
  void btm_consolidate_dev(tBTM_SEC_DEV_REC *p_target_rec);
  BOOLEAN btm_sec_is_le_capable_dev (BD_ADDR bda);
  BOOLEAN btm_ble_init_pseudo_addr (tBTM_SEC_DEV_REC *p_dev_rec, BD_ADDR new_pseudo_addr);
  extern BOOLEAN btm_ble_start_sec_check(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
                              tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
  #endif /* BLE_INCLUDED */
  
  extern tBTM_SEC_SERV_REC *btm_sec_find_first_serv (CONNECTION_TYPE conn_type, UINT16 psm);
  
  tINQ_DB_ENT *btm_inq_db_new (BD_ADDR p_bda);
  
  #if BTM_OOB_INCLUDED == TRUE
  void  btm_rem_oob_req (UINT8 *p);
  void  btm_read_local_oob_complete (UINT8 *p);
  #else
  #define btm_rem_oob_req(p)
  #define btm_read_local_oob_complete(p)
  #endif
  
  void  btm_acl_resubmit_page (void);
  void  btm_acl_reset_paging (void);
  void  btm_acl_paging (BT_HDR *p, BD_ADDR dest);
  UINT8 btm_sec_clr_service_by_psm (UINT16 psm);
  void  btm_sec_clr_temp_auth_service (BD_ADDR bda);
  
  void btm_ble_lock_init(void);
  
  void btm_ble_sem_init(void);
  
  void btm_ble_sem_free(void);
  
  void btm_ble_lock_free(void);
  
  /*
  #ifdef __cplusplus
  }
  #endif
  */
  
  #endif
  