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_BLE_INT_H
  #define BTM_BLE_INT_H
  
  #include "common/bt_target.h"
  #include "osi/fixed_queue.h"
  #include "stack/hcidefs.h"
  #include "stack/btm_ble_api.h"
  #include "btm_int.h"
  
  #if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
  #include "stack/smp_api.h"
  #endif
  
  
  /* scanning enable status */
  #define BTM_BLE_SCAN_ENABLE      0x01
  #define BTM_BLE_SCAN_DISABLE     0x00
  
  /* advertising enable status */
  #define BTM_BLE_ADV_ENABLE     0x01
  #define BTM_BLE_ADV_DISABLE    0x00
  
  /* use the high 4 bits unused by inquiry mode */
  #define BTM_BLE_SELECT_SCAN     0x20
  #define BTM_BLE_NAME_REQUEST    0x40
  #define BTM_BLE_OBSERVE         0x80
  
  #define BTM_BLE_MAX_WL_ENTRY        1
  #define BTM_BLE_AD_DATA_LEN         31
  
  #define BTM_BLE_ENC_MASK    0x03
  
  #define BTM_BLE_DUPLICATE_DISABLE       0
  #define BTM_BLE_DUPLICATE_ENABLE        1
  #define BTM_BLE_DUPLICATE_MAX           BTM_BLE_DUPLICATE_ENABLE
  
  #define BTM_BLE_GAP_DISC_SCAN_INT      18         /* Interval(scan_int) = 11.25 ms= 0x0010 * 0.625 ms */
  #define BTM_BLE_GAP_DISC_SCAN_WIN      18         /* scan_window = 11.25 ms= 0x0010 * 0.625 ms */
  #define BTM_BLE_GAP_ADV_INT            512        /* Tgap(gen_disc) = 1.28 s= 512 * 0.625 ms */
  #define BTM_BLE_GAP_LIM_TOUT           180        /* Tgap(lim_timeout) = 180s max */
  #define BTM_BLE_LOW_LATENCY_SCAN_INT   8000       /* Interval(scan_int) = 5s= 8000 * 0.625 ms */
  #define BTM_BLE_LOW_LATENCY_SCAN_WIN   8000       /* scan_window = 5s= 8000 * 0.625 ms */
  
  
  #define BTM_BLE_GAP_ADV_FAST_INT_1         48         /* TGAP(adv_fast_interval1) = 30(used) ~ 60 ms  = 48 *0.625 */
  #define BTM_BLE_GAP_ADV_FAST_INT_2         160         /* TGAP(adv_fast_interval2) = 100(used) ~ 150 ms = 160 * 0.625 ms */
  #define BTM_BLE_GAP_ADV_SLOW_INT           2048         /* Tgap(adv_slow_interval) = 1.28 s= 512 * 0.625 ms */
  #define BTM_BLE_GAP_ADV_DIR_MAX_INT        800         /* Tgap(dir_conn_adv_int_max) = 500 ms = 800 * 0.625 ms */
  #define BTM_BLE_GAP_ADV_DIR_MIN_INT        400         /* Tgap(dir_conn_adv_int_min) = 250 ms = 400 * 0.625 ms */
  
  #define BTM_BLE_GAP_FAST_ADV_TOUT          30
  
  #define BTM_BLE_SEC_REQ_ACT_NONE           0
  #define BTM_BLE_SEC_REQ_ACT_ENCRYPT        1 /* encrypt the link using current key or key refresh */
  #define BTM_BLE_SEC_REQ_ACT_PAIR           2
  #define BTM_BLE_SEC_REQ_ACT_DISCARD        3 /* discard the sec request while encryption is started but not completed */
  typedef UINT8   tBTM_BLE_SEC_REQ_ACT;
  
  #define BLE_STATIC_PRIVATE_MSB_MASK          0x3f
  #define BLE_RESOLVE_ADDR_MSB                 0x40   /*  most significant bit, bit7, bit6 is 01 to be resolvable random */
  #define BLE_RESOLVE_ADDR_MASK                0xc0   /* bit 6, and bit7 */
  #define BTM_BLE_IS_RESOLVE_BDA(x)           ((x[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB)
  
  /* LE scan activity bit mask, continue with LE inquiry bits */
  #define BTM_LE_SELECT_CONN_ACTIVE      0x0040     /* selection connection is in progress */
  #define BTM_LE_OBSERVE_ACTIVE          0x0080     /* observe is in progress */
  #define BTM_LE_DISCOVER_ACTIVE         0x0100     /* scan is in progress */
  
  /* BLE scan activity mask checking */
  #define BTM_BLE_IS_SCAN_ACTIVE(x)   ((x) & BTM_BLE_SCAN_ACTIVE_MASK)
  #define BTM_BLE_IS_INQ_ACTIVE(x)   ((x) & BTM_BLE_INQUIRY_MASK)
  #define BTM_BLE_IS_OBS_ACTIVE(x)   ((x) & BTM_LE_OBSERVE_ACTIVE)
  #define BTM_BLE_IS_DISCO_ACTIVE(x)   ((x) & BTM_LE_DISCOVER_ACTIVE)
  #define BTM_BLE_IS_SEL_CONN_ACTIVE(x)   ((x) & BTM_LE_SELECT_CONN_ACTIVE)
  
  /* BLE ADDR type ID bit */
  #define BLE_ADDR_TYPE_ID_BIT 0x02
  
  #define BTM_VSC_CHIP_CAPABILITY_L_VERSION 55
  #define BTM_VSC_CHIP_CAPABILITY_M_VERSION 95
  
  typedef enum {
      BTM_BLE_IDLE,
      BTM_BLE_SCANNING,
      BTM_BLE_SCAN_PENDING,
      BTM_BLE_STOP_SCAN,
      BTM_BLE_ADVERTISING,
      BTM_BLE_ADV_PENDING,
      BTM_BLE_STOP_ADV,
  }tBTM_BLE_GAP_STATE;
  
  typedef struct {
      UINT16              data_mask;
      UINT8               *p_flags;
      UINT8               ad_data[BTM_BLE_AD_DATA_LEN];
      UINT8               *p_pad;
  } tBTM_BLE_LOCAL_ADV_DATA;
  
  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.                                         */
      BOOLEAN         scan_rsp;
      tBLE_BD_ADDR    le_bda;
  } tINQ_LE_BDADDR;
  
  #define BTM_BLE_ADV_DATA_LEN_MAX        31
  #define BTM_BLE_CACHE_ADV_DATA_MAX      62
  
  #define BTM_BLE_ISVALID_PARAM(x, min, max)  (((x) >= (min) && (x) <= (max)) || ((x) == BTM_BLE_CONN_PARAM_UNDEF))
  
  #define BTM_BLE_PRIVATE_ADDR_INT    900  /* 15 minutes minimum for random address refreshing */
  
  typedef struct {
      UINT16 discoverable_mode;
      UINT16 connectable_mode;
      BOOLEAN scan_params_set;
      UINT32 scan_window;
      UINT32 scan_interval;
      UINT8 scan_type; /* current scan type: active or passive */
      UINT8 scan_duplicate_filter; /* duplicate filter enabled for scan */
      UINT16 adv_interval_min;
      UINT16 adv_interval_max;
      tBTM_BLE_AFP afp; /* advertising filter policy */
      tBTM_BLE_SFP sfp; /* scanning filter policy */
      tBTM_START_ADV_CMPL_CBACK *p_adv_cb;
      tBTM_START_STOP_ADV_CMPL_CBACK *p_stop_adv_cb;
      tBLE_ADDR_TYPE adv_addr_type;
      UINT8 evt_type;
      UINT8 adv_mode;
      tBLE_BD_ADDR direct_bda;
      tBTM_BLE_EVT directed_conn;
      BOOLEAN fast_adv_on;
      TIMER_LIST_ENT fast_adv_timer;
  
      UINT8 adv_len;
      UINT8 adv_data_cache[BTM_BLE_CACHE_ADV_DATA_MAX];
      BD_ADDR adv_addr;
      /* inquiry BD addr database */
      UINT8 num_bd_entries;
      UINT8 max_bd_entries;
      tBTM_BLE_LOCAL_ADV_DATA adv_data;
      tBTM_BLE_ADV_CHNL_MAP adv_chnl_map;
  
      TIMER_LIST_ENT inq_timer_ent;
      BOOLEAN scan_rsp;
      tBTM_BLE_GAP_STATE state; /* Current state that the inquiry process is in */
      INT8 tx_power;
  } tBTM_BLE_INQ_CB;
  
  
  /* random address resolving complete callback */
  typedef void (tBTM_BLE_RESOLVE_CBACK) (void *match_rec, void *p);
  
  typedef void (tBTM_BLE_ADDR_CBACK) (BD_ADDR_PTR static_random, void *p);
  
  #define BTM_BLE_GAP_ADDR_BIT_RANDOM      (1<<0)
  #define BTM_BLE_GAP_ADDR_BIT_RESOLVABLE  (1<<1)
  
  /* random address management control block */
  typedef struct {
      tBLE_ADDR_TYPE              own_addr_type;         /* local device LE address type */
      UINT8                       exist_addr_bit;
      BD_ADDR                     static_rand_addr;
      BD_ADDR                     resolvale_addr;
      BD_ADDR                     private_addr;
      BD_ADDR                     random_bda;
      BOOLEAN                     busy;
      UINT16                       index;
      tBTM_BLE_RESOLVE_CBACK      *p_resolve_cback;
      tBTM_BLE_ADDR_CBACK         *p_generate_cback;
      void                        *p;
      TIMER_LIST_ENT              raddr_timer_ent;
      tBTM_SET_LOCAL_PRIVACY_CBACK *set_local_privacy_cback;
  } tBTM_LE_RANDOM_CB;
  
  #define BTM_BLE_MAX_BG_CONN_DEV_NUM    10
  
  typedef struct {
      UINT16              min_conn_int;
      UINT16              max_conn_int;
      UINT16              slave_latency;
      UINT16              supervision_tout;
  
  } tBTM_LE_CONN_PRAMS;
  
  
  typedef struct {
      BD_ADDR     bd_addr;
      UINT8       attr;
      BOOLEAN     is_connected;
      BOOLEAN     in_use;
  } tBTM_LE_BG_CONN_DEV;
  
  /* white list using state as a bit mask */
  #define BTM_BLE_WL_IDLE         0
  #define BTM_BLE_WL_INIT         1
  #define BTM_BLE_WL_SCAN         2
  #define BTM_BLE_WL_ADV          4
  typedef UINT8 tBTM_BLE_WL_STATE;
  
  /* resolving list using state as a bit mask */
  #define BTM_BLE_RL_IDLE         0
  #define BTM_BLE_RL_INIT         1
  #define BTM_BLE_RL_SCAN         2
  #define BTM_BLE_RL_ADV          4
  typedef UINT8 tBTM_BLE_RL_STATE;
  
  /* BLE connection state */
  #define BLE_CONN_IDLE    0
  #define BLE_DIR_CONN     1
  #define BLE_BG_CONN      2
  #define BLE_CONN_CANCEL  3
  typedef UINT8 tBTM_BLE_CONN_ST;
  
  typedef struct {
      void    *p_param;
  } tBTM_BLE_CONN_REQ;
  
  /* LE state request */
  #define BTM_BLE_STATE_INVALID               0
  #define BTM_BLE_STATE_CONN_ADV              1
  #define BTM_BLE_STATE_INIT                  2
  #define BTM_BLE_STATE_MASTER                3
  #define BTM_BLE_STATE_SLAVE                 4
  #define BTM_BLE_STATE_LO_DUTY_DIR_ADV       5
  #define BTM_BLE_STATE_HI_DUTY_DIR_ADV       6
  #define BTM_BLE_STATE_NON_CONN_ADV          7
  #define BTM_BLE_STATE_PASSIVE_SCAN          8
  #define BTM_BLE_STATE_ACTIVE_SCAN           9
  #define BTM_BLE_STATE_SCAN_ADV              10
  #define BTM_BLE_STATE_MAX                   11
  typedef UINT8 tBTM_BLE_STATE;
  
  #define BTM_BLE_STATE_CONN_ADV_BIT          0x0001
  #define BTM_BLE_STATE_INIT_BIT              0x0002
  #define BTM_BLE_STATE_MASTER_BIT            0x0004
  #define BTM_BLE_STATE_SLAVE_BIT             0x0008
  #define BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT   0x0010
  #define BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT   0x0020
  #define BTM_BLE_STATE_NON_CONN_ADV_BIT      0x0040
  #define BTM_BLE_STATE_PASSIVE_SCAN_BIT      0x0080
  #define BTM_BLE_STATE_ACTIVE_SCAN_BIT       0x0100
  #define BTM_BLE_STATE_SCAN_ADV_BIT          0x0200
  typedef UINT16 tBTM_BLE_STATE_MASK;
  
  #define BTM_BLE_STATE_ALL_MASK              0x03ff
  #define BTM_BLE_STATE_ALL_ADV_MASK          (BTM_BLE_STATE_CONN_ADV_BIT|BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT|BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT|BTM_BLE_STATE_SCAN_ADV_BIT)
  #define BTM_BLE_STATE_ALL_SCAN_MASK         (BTM_BLE_STATE_PASSIVE_SCAN_BIT|BTM_BLE_STATE_ACTIVE_SCAN_BIT)
  #define BTM_BLE_STATE_ALL_CONN_MASK         (BTM_BLE_STATE_MASTER_BIT|BTM_BLE_STATE_SLAVE_BIT)
  
  #ifndef BTM_LE_RESOLVING_LIST_MAX
  #define BTM_LE_RESOLVING_LIST_MAX     0x20
  #endif
  
  #define BTM_DUPLICATE_SCAN_EXCEPTIONAL_INFO_ADV_ADDR             0
  #define BTM_DUPLICATE_SCAN_EXCEPTIONAL_INFO_MESH_LINK_ID         1
  #define BTM_DUPLICATE_SCAN_EXCEPTIONAL_INFO_MESH_BEACON_TYPE     2
  #define BTM_DUPLICATE_SCAN_EXCEPTIONAL_INFO_MESH_PROV_SRV_ADV    3
  #define BTM_DUPLICATE_SCAN_EXCEPTIONAL_INFO_MESH_PROXY_SRV_ADV   4
  
  typedef struct {
      BD_ADDR         *resolve_q_random_pseudo;
      UINT8           *resolve_q_action;
      UINT8           q_next;
      UINT8           q_pending;
  } tBTM_BLE_RESOLVE_Q;
  
  typedef struct {
      BOOLEAN     in_use;
      BOOLEAN     to_add;
      BD_ADDR     bd_addr;
      tBLE_ADDR_TYPE addr_type;
      UINT8       attr;
  } tBTM_BLE_WL_OP;
  
  /* BLE privacy mode */
  #define BTM_PRIVACY_NONE    0              /* BLE no privacy */
  #define BTM_PRIVACY_1_1     1              /* BLE privacy 1.1, do not support privacy 1.0 */
  #define BTM_PRIVACY_1_2     2              /* BLE privacy 1.2 */
  #define BTM_PRIVACY_MIXED   3              /* BLE privacy mixed mode, broadcom propietary mode */
  typedef UINT8 tBTM_PRIVACY_MODE;
  
  /* data length change event callback */
  typedef void (tBTM_DATA_LENGTH_CHANGE_CBACK) (UINT16 max_tx_length, UINT16 max_rx_length);
  
  /* Define BLE Device Management control structure
  */
  typedef struct {
      UINT16 scan_activity;         /* LE scan activity mask */
  
      /*****************************************************
      **      BLE Inquiry
      *****************************************************/
      tBTM_BLE_INQ_CB inq_var;
  
      /* observer callback and timer */
      tBTM_INQ_RESULTS_CB *p_obs_results_cb;
      tBTM_CMPL_CB *p_obs_cmpl_cb;
      tBTM_INQ_DIS_CB *p_obs_discard_cb;
      TIMER_LIST_ENT obs_timer_ent;
  
      /* scan callback and timer */
      tBTM_INQ_RESULTS_CB *p_scan_results_cb;
      tBTM_CMPL_CB *p_scan_cmpl_cb;
      TIMER_LIST_ENT scan_timer_ent;
  
      /* background connection procedure cb value */
      tBTM_BLE_CONN_TYPE bg_conn_type;
      UINT32 scan_int;
      UINT32 scan_win;
      tBTM_BLE_SEL_CBACK *p_select_cback;
      /* white list information */
      UINT8 white_list_avail_size;
      tBTM_ADD_WHITELIST_CBACK *add_wl_cb;
      tBTM_BLE_WL_STATE wl_state;
  
      fixed_queue_t *conn_pending_q;
      tBTM_BLE_CONN_ST conn_state;
  
      /* random address management control block */
      tBTM_LE_RANDOM_CB addr_mgnt_cb;
  
      BOOLEAN enabled;
  
  #if BLE_PRIVACY_SPT == TRUE
      BOOLEAN mixed_mode; /* privacy 1.2 mixed mode is on or not */
      tBTM_PRIVACY_MODE privacy_mode; /* privacy mode */
      UINT8 resolving_list_avail_size; /* resolving list available size */
      tBTM_BLE_RESOLVE_Q resolving_list_pend_q; /* Resolving list queue */
      tBTM_BLE_RL_STATE suspended_rl_state; /* Suspended resolving list state */
      UINT8 *irk_list_mask; /* IRK list availability mask, up to max entry bits */
      tBTM_BLE_RL_STATE rl_state; /* Resolving list state */
  #endif
  
      tBTM_BLE_WL_OP wl_op_q[BTM_BLE_MAX_BG_CONN_DEV_NUM];
  
      /* current BLE link state */
      tBTM_BLE_STATE_MASK cur_states; /* bit mask of tBTM_BLE_STATE */
      UINT8 link_count[2]; /* total link count master and slave*/
      tBTM_UPDATE_DUPLICATE_EXCEPTIONAL_LIST_CMPL_CBACK *update_exceptional_list_cmp_cb;
  } tBTM_BLE_CB;
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  void btm_ble_timeout(TIMER_LIST_ENT *p_tle);
  void btm_ble_process_adv_pkt (UINT8 *p);
  void btm_ble_process_adv_discard_evt(UINT8 *p);
  void btm_ble_proc_scan_rsp_rpt (UINT8 *p);
  tBTM_STATUS btm_ble_read_remote_name(BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur, tBTM_CMPL_CB *p_cb);
  BOOLEAN btm_ble_cancel_remote_name(BD_ADDR remote_bda);
  
  tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode);
  tBTM_STATUS btm_ble_set_connectability(UINT16 combined_mode);
  tBTM_STATUS btm_ble_start_inquiry (UINT8 mode, UINT8   duration);
  void btm_ble_stop_scan(void);
  void btm_clear_all_pending_le_entry(void);
  
  BOOLEAN btm_ble_send_extended_scan_params(UINT8 scan_type, UINT32 scan_int,
          UINT32 scan_win, UINT8 addr_type_own,
          UINT8 scan_filter_policy);
  void btm_ble_stop_inquiry(void);
  void btm_ble_init (void);
  void btm_ble_free (void);
  void btm_ble_connected (UINT8 *bda, UINT16 handle, UINT8 enc_mode, UINT8 role, tBLE_ADDR_TYPE addr_type, BOOLEAN addr_matched);
  void btm_ble_read_remote_features_complete(UINT8 *p);
  void btm_ble_write_adv_enable_complete(UINT8 *p);
  void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced);
  void btm_read_ble_local_supported_states_complete(UINT8 *p, UINT16 evt_len);
  tBTM_BLE_CONN_ST btm_ble_get_conn_st(void);
  void btm_ble_set_conn_st(tBTM_BLE_CONN_ST new_st);
  UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst,
                                tBTM_BLE_ADV_DATA *p_data);
  tBTM_STATUS btm_ble_start_adv(void);
  tBTM_STATUS btm_ble_stop_adv(void);
  tBTM_STATUS btm_ble_start_scan(void);
  void btm_ble_create_ll_conn_complete (UINT8 status);
  
  /* LE security function from btm_sec.c */
  #if SMP_INCLUDED == TRUE
  void btm_ble_link_sec_check(BD_ADDR bd_addr, tBTM_LE_AUTH_REQ auth_req, tBTM_BLE_SEC_REQ_ACT *p_sec_req_act);
  void btm_ble_ltk_request_reply(BD_ADDR bda,  BOOLEAN use_stk, BT_OCTET16 stk);
  UINT8 btm_proc_smp_cback(tSMP_EVT event, BD_ADDR bd_addr, tSMP_EVT_DATA *p_data);
  tBTM_STATUS btm_ble_set_encryption (BD_ADDR bd_addr, void *p_ref_data, UINT8 link_role);
  void btm_ble_ltk_request(UINT16 handle, UINT8 rand[8], UINT16 ediv);
  tBTM_STATUS btm_ble_start_encrypt(BD_ADDR bda, BOOLEAN use_stk, BT_OCTET16 stk);
  void btm_ble_link_encrypted(BD_ADDR bd_addr, UINT8 encr_enable);
  #endif
  
  /* LE device management functions */
  void btm_ble_reset_id( void );
  
  /* security related functions */
  void btm_ble_increment_sign_ctr(BD_ADDR bd_addr, BOOLEAN is_local );
  BOOLEAN btm_get_local_div (BD_ADDR bd_addr, UINT16 *p_div);
  BOOLEAN btm_ble_get_enc_key_type(BD_ADDR bd_addr, UINT8 *p_key_types);
  
  void btm_ble_test_command_complete(UINT8 *p);
  void btm_ble_rand_enc_complete (UINT8 *p, UINT16 op_code, tBTM_RAND_ENC_CB *p_enc_cplt_cback);
  
  void btm_sec_save_le_key(BD_ADDR bd_addr, tBTM_LE_KEY_TYPE key_type, tBTM_LE_KEY_VALUE *p_keys, BOOLEAN pass_to_application);
  void btm_ble_update_sec_key_size(BD_ADDR bd_addr, UINT8 enc_key_size);
  UINT8 btm_ble_read_sec_key_size(BD_ADDR bd_addr);
  
  /* white list function */
  BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr, tBLE_ADDR_TYPE addr_type, tBTM_ADD_WHITELIST_CBACK *add_wl_cb);
  void btm_update_scanner_filter_policy(tBTM_BLE_SFP scan_policy);
  void btm_update_adv_filter_policy(tBTM_BLE_AFP adv_policy);
  void btm_ble_clear_white_list (void);
  void btm_read_white_list_size_complete(UINT8 *p, UINT16 evt_len);
  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);
  void btm_ble_white_list_init(UINT8 white_list_size);
  
  /* background connection function */
  BOOLEAN btm_ble_suspend_bg_conn(void);
  BOOLEAN btm_ble_resume_bg_conn(void);
  void btm_ble_initiate_select_conn(BD_ADDR bda);
  BOOLEAN btm_ble_start_auto_conn(BOOLEAN start);
  BOOLEAN btm_ble_start_select_conn(BOOLEAN start, tBTM_BLE_SEL_CBACK   *p_select_cback);
  BOOLEAN btm_ble_renew_bg_conn_params(BOOLEAN add, BD_ADDR bd_addr);
  void btm_write_dir_conn_wl(BD_ADDR target_addr);
  void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bda, UINT8 status);
  BOOLEAN btm_execute_wl_dev_operation(void);
  void btm_ble_update_link_topology_mask(UINT8 role, BOOLEAN increase);
  
  /* direct connection utility */
  BOOLEAN btm_send_pending_direct_conn(void);
  void btm_ble_enqueue_direct_conn_req(void *p_param);
  
  /* BLE address management */
  void btm_gen_resolvable_private_addr (void *p_cmd_cplt_cback);
  void btm_gen_non_resolvable_private_addr (tBTM_BLE_ADDR_CBACK *p_cback, void *p);
  void btm_ble_resolve_random_addr(BD_ADDR random_bda, tBTM_BLE_RESOLVE_CBACK *p_cback, void *p);
  void btm_gen_resolve_paddr_low(tBTM_RAND_ENC *p);
  
  /*  privacy function */
  #if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
  /* BLE address mapping with CS feature */
  BOOLEAN btm_identity_addr_to_random_pseudo(BD_ADDR bd_addr, UINT8 *p_addr_type, BOOLEAN refresh);
  BOOLEAN btm_random_pseudo_to_identity_addr(BD_ADDR random_pseudo, UINT8 *p_static_addr_type);
  void btm_ble_refresh_peer_resolvable_private_addr(BD_ADDR pseudo_bda, BD_ADDR rra, UINT8 rra_type);
  void btm_ble_refresh_local_resolvable_private_addr(BD_ADDR pseudo_addr, BD_ADDR local_rpa);
  void btm_ble_read_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len) ;
  void btm_ble_remove_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len);
  void btm_ble_add_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len);
  void btm_ble_clear_resolving_list_complete(UINT8 *p, UINT16 evt_len);
  void btm_read_ble_resolving_list_size_complete (UINT8 *p, UINT16 evt_len);
  void btm_ble_enable_resolving_list(UINT8);
  BOOLEAN btm_ble_disable_resolving_list(UINT8 rl_mask, BOOLEAN to_resume);
  void btm_ble_enable_resolving_list_for_platform (UINT8 rl_mask);
  void btm_ble_resolving_list_init(UINT8 max_irk_list_sz);
  void btm_ble_resolving_list_cleanup(void);
  #endif
  
  void btm_ble_multi_adv_configure_rpa (tBTM_BLE_MULTI_ADV_INST *p_inst);
  void btm_ble_multi_adv_init(void);
  void *btm_ble_multi_adv_get_ref(UINT8 inst_id);
  void btm_ble_multi_adv_cleanup(void);
  void btm_ble_multi_adv_reenable(UINT8 inst_id);
  void btm_ble_multi_adv_enb_privacy(BOOLEAN enable);
  char btm_ble_map_adv_tx_power(int tx_power_index);
  void btm_ble_batchscan_init(void);
  void btm_ble_batchscan_cleanup(void);
  void btm_ble_adv_filter_init(void);
  void btm_ble_adv_filter_cleanup(void);
  BOOLEAN btm_ble_topology_check(tBTM_BLE_STATE_MASK request);
  BOOLEAN btm_ble_clear_topology_mask(tBTM_BLE_STATE_MASK request_state);
  BOOLEAN btm_ble_set_topology_mask(tBTM_BLE_STATE_MASK request_state);
  tBTM_BLE_STATE_MASK btm_ble_get_topology_mask(void);
  
  #if BTM_BLE_CONFORMANCE_TESTING == TRUE
  void btm_ble_set_no_disc_if_pair_fail (BOOLEAN disble_disc);
  void btm_ble_set_test_mac_value (BOOLEAN enable, UINT8 *p_test_mac_val);
  void btm_ble_set_test_local_sign_cntr_value(BOOLEAN enable, UINT32 test_local_sign_cntr);
  void btm_set_random_address(BD_ADDR random_bda);
  void btm_ble_set_keep_rfu_in_auth_req(BOOLEAN keep_rfu);
  #endif
  
  /*
  #ifdef __cplusplus
  }
  #endif
  */
  #endif
  