/*******************************************************************************
**
** Function btm_ble_start_select_conn
**
** Description This function is to start/stop selective connection procedure.
**
** Parameters start: TRUE to start; FALSE to stop.
** p_select_cback: callback function to return application
** selection.
**
** Returns BOOLEAN: selective connectino procedure is started.
**
*******************************************************************************/
BOOLEAN btm_ble_start_select_conn(BOOLEAN start, tBTM_BLE_SEL_CBACK *p_select_cback)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT32 scan_int = p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
UINT32 scan_win = p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
BTM_TRACE_EVENT ("%s", __func__);
if (start)
{
if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity))
{
if (p_select_cback != NULL)
btm_cb.ble_ctr_cb.p_select_cback = p_select_cback;
btm_execute_wl_dev_operation();
btm_update_scanner_filter_policy(SP_ADV_WL);
btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_PASS;
/* Process advertising packets only from devices in the white list */
if (btm_cb.cmn_ble_vsc_cb.extended_scan_support == 0)
{
/* use passive scan by default */
if (!btsnd_hcic_ble_set_scan_params(BTM_BLE_SCAN_MODE_PASS,
scan_int,
scan_win,
p_cb->addr_mgnt_cb.own_addr_type,
SP_ADV_WL))
{
return FALSE;
}
}
else
{
if (!btm_ble_send_extended_scan_params(BTM_BLE_SCAN_MODE_PASS,
scan_int,
scan_win,
p_cb->addr_mgnt_cb.own_addr_type,
SP_ADV_WL))
{
return FALSE;
}
}
if (!btm_ble_topology_check(BTM_BLE_STATE_PASSIVE_SCAN))
{
BTM_TRACE_ERROR("peripheral device cannot initiate passive scan for a selective connection");
return FALSE;
}
else if (background_connections_pending())
{
#if BLE_PRIVACY_SPT == TRUE
btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
#endif
if (!btsnd_hcic_ble_set_scan_enable(TRUE, TRUE)) /* duplicate filtering enabled */
return FALSE;
/* mark up inquiry status flag */
p_cb->scan_activity |= BTM_LE_SELECT_CONN_ACTIVE;
p_cb->wl_state |= BTM_BLE_WL_SCAN;
}
}
else
{
BTM_TRACE_ERROR("scan active, can not start selective connection procedure");
return FALSE;
}
}
else /* disable selective connection mode */
{
p_cb->scan_activity &= ~BTM_LE_SELECT_CONN_ACTIVE;
p_cb->p_select_cback = NULL;
p_cb->wl_state &= ~BTM_BLE_WL_SCAN;
/* stop scanning */
if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity))
btm_ble_stop_scan(); /* duplicate filtering enabled */
}
return TRUE;
}
/*******************************************************************************
**
** Function btm_ble_start_select_conn
**
** Description This function is to start/stop selective connection procedure.
**
** Parameters start: TRUE to start; FALSE to stop.
** p_select_cback: callback function to return application
** selection.
**
** Returns BOOLEAN: selective connectino procedure is started.
**
*******************************************************************************/
BOOLEAN btm_ble_start_select_conn(BOOLEAN start,tBTM_BLE_SEL_CBACK *p_select_cback)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT16 scan_int, scan_win;
BTM_TRACE_EVENT ("btm_ble_start_select_conn");
scan_int = (p_cb->scan_int == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
scan_win = (p_cb->scan_win == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
if (start)
{
if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity))
{
if (p_select_cback != NULL)
btm_cb.ble_ctr_cb.p_select_cback = p_select_cback;
btm_execute_wl_dev_operation();
btm_update_scanner_filter_policy(SP_ADV_WL);
btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_PASS;
if (!btsnd_hcic_ble_set_scan_params(BTM_BLE_SCAN_MODE_PASS, /* use passive scan by default */
scan_int, /* scan interval */
scan_win, /* scan window */
p_cb->addr_mgnt_cb.own_addr_type,
SP_ADV_WL) /* process advertising packets only from devices in the White List */
)
return FALSE;
if (!btm_ble_topology_check(BTM_BLE_STATE_PASSIVE_SCAN))
{
BTM_TRACE_ERROR("peripheral device cannot initiate passive scan for a selective connection");
return FALSE;
}
else if (p_cb->bg_dev_num > 0 && btm_ble_count_unconn_dev_in_whitelist() > 0 )
{
if (!btsnd_hcic_ble_set_scan_enable(TRUE, TRUE)) /* duplicate filtering enabled */
return FALSE;
/* mark up inquiry status flag */
p_cb->scan_activity |= BTM_LE_SELECT_CONN_ACTIVE;
p_cb->wl_state |= BTM_BLE_WL_SCAN;
}
}
else
{
BTM_TRACE_ERROR("scan active, can not start selective connection procedure");
return FALSE;
}
}
else /* disable selective connection mode */
{
p_cb->scan_activity &= ~BTM_LE_SELECT_CONN_ACTIVE;
p_cb->p_select_cback = NULL;
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
if (btm_cb.cmn_ble_vsc_cb.rpa_offloading == TRUE)
btm_ble_vendor_disable_irk_list();
#endif
p_cb->wl_state |= BTM_BLE_WL_SCAN;
/* stop scanning */
if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity))
btm_ble_stop_scan(); /* duplicate filtering enabled */
btm_update_scanner_filter_policy(SP_ADV_ALL);
}
return TRUE;
}
