/*******************************************************************************
**
** Function btm_update_bg_conn_list
**
** Description This function update the local background connection device list.
*******************************************************************************/
BOOLEAN btm_update_bg_conn_list(BOOLEAN to_add, BD_ADDR bd_addr)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT8 i;
BD_ADDR dummy_bda = {0};
BTM_TRACE_EVENT0 ("btm_update_bg_conn_list");
if ((to_add && (p_cb->bg_conn_dev_num == BTM_BLE_MAX_BG_CONN_DEV_NUM || p_cb->num_empty_filter == 0)) ||
(!to_add && p_cb->num_empty_filter == p_cb->max_filter_entries))
{
BTM_TRACE_DEBUG1("num_empty_filter = %d", p_cb->num_empty_filter);
return FALSE;
}
for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM && i < p_cb->max_filter_entries; i ++)
{
/* to add */
if (memcmp(p_cb->bg_conn_dev_list[i], dummy_bda, BD_ADDR_LEN) == 0 && to_add)
{
memcpy(p_cb->bg_conn_dev_list[i], bd_addr, BD_ADDR_LEN);
p_cb->bg_conn_dev_num ++;
return TRUE;
}
/* to remove */
if (!to_add && memcmp(p_cb->bg_conn_dev_list[i], bd_addr, BD_ADDR_LEN) == 0)
{
memset(p_cb->bg_conn_dev_list[i], 0, BD_ADDR_LEN);
p_cb->bg_conn_dev_num --;
return TRUE;
}
}
return FALSE;
}
/*******************************************************************************
**
** Function btm_ble_add_2_white_list_complete
**
** Description This function read the current white list size.
*******************************************************************************/
void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
BTM_TRACE_EVENT0 ("btm_ble_remove_from_white_list_complete");
if (*p == HCI_SUCCESS)
{
p_cb->num_empty_filter ++;
}
}
/*******************************************************************************
**
** Function btm_ble_initiate_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.
**
*******************************************************************************/
void btm_ble_initiate_select_conn(BD_ADDR bda)
{
BTM_TRACE_EVENT0 ("btm_ble_initiate_select_conn");
/* use direct connection procedure to initiate connection */
if (!L2CA_ConnectFixedChnl(L2CAP_ATT_CID, bda))
{
BTM_TRACE_ERROR0("btm_ble_initiate_select_conn failed");
}
}
/*******************************************************************************
**
** Function btm_ble_add_2_white_list_complete
**
** Description This function read the current white list size.
*******************************************************************************/
void btm_ble_add_2_white_list_complete(UINT8 status)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
BTM_TRACE_EVENT0 ("btm_ble_add_2_white_list_complete");
if (status == HCI_SUCCESS)
{
p_cb->num_empty_filter --;
}
}
/*******************************************************************************
**
** Function btm_ble_clear_white_list_complete
**
** Description This function clears the white list complete.
*******************************************************************************/
void btm_ble_clear_white_list_complete(UINT8 *p_data, UINT16 evt_len)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT8 status;
BTM_TRACE_EVENT0 ("btm_ble_clear_white_list_complete");
STREAM_TO_UINT8 (status, p_data);
if (status == HCI_SUCCESS)
p_cb->num_empty_filter = p_cb->max_filter_entries;
}
/*******************************************************************************
**
** Function btm_ble_suspend_bg_sele_conn
**
** Description This function is to suspend an active background connection
** procedure.
**
** Parameters none.
**
** Returns none.
**
*******************************************************************************/
void btm_ble_suspend_bg_sele_conn(void)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
BTM_TRACE_EVENT0 ("btm_ble_suspend_bg_sele_conn");
if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE)
{
p_cb->bg_conn_state = BLE_BG_CONN_SUSPEND;
btm_ble_start_select_conn(FALSE, NULL);
}
}
/*******************************************************************************
**
** Function btm_ble_suspend_bg_conn
**
** Description This function is to suspend an active background connection
** procedure.
**
** Parameters none.
**
** Returns none.
**
*******************************************************************************/
void btm_ble_suspend_bg_conn(void)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
BTM_TRACE_EVENT0 ("btm_ble_suspend_bg_conn");
if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO)
{
if (btm_ble_start_auto_conn(FALSE))
p_cb->bg_conn_state = BLE_BG_CONN_SUSPEND;
}
}
/*******************************************************************************
**
** Function btm_ble_initiate_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.
**
*******************************************************************************/
void btm_ble_initiate_select_conn(BD_ADDR bda)
{
UINT8 addr_type;
BTM_TRACE_EVENT0 ("btm_ble_initiate_select_conn");
addr_type = btm_ble_map_bda_to_conn_bda(bda);
/* use direct connection procedure to initiate connection */
if (!L2CA_ConnectFixedChnl(L2CAP_ATT_CID, bda))
{
BTM_TRACE_ERROR0("btm_ble_initiate_select_conn failed");
}
}
/*******************************************************************************
**
** Function btm_find_or_alloc_dev
**
** Description Look for the record in the device database for the record
** with specified BD address
**
** Returns Pointer to the record or NULL
**
*******************************************************************************/
tBTM_SEC_DEV_REC *btm_find_or_alloc_dev (BD_ADDR bd_addr)
{
tBTM_SEC_DEV_REC *p_dev_rec;
BTM_TRACE_EVENT0 ("btm_find_or_alloc_dev");
if ((p_dev_rec = btm_find_dev (bd_addr)) == NULL)
{
/* Allocate a new device record or reuse the oldest one */
p_dev_rec = btm_sec_alloc_dev (bd_addr);
}
return(p_dev_rec);
}
/*******************************************************************************
**
** Function btm_update_scanner_filter_policy
**
** Description This function update the filter policy of scnner or advertiser.
*******************************************************************************/
void btm_update_scanner_filter_policy(tBTM_BLE_SFP scan_policy)
{
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
BTM_TRACE_EVENT0 ("btm_update_scanner_filter_policy");
btm_cb.ble_ctr_cb.inq_var.sfp = scan_policy;
btsnd_hcic_ble_set_scan_params ((UINT8)((p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ? BTM_BLE_SCAN_MODE_ACTI: p_inq->scan_type),
(UINT16)(!p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval),
(UINT16)(!p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window),
BLE_ADDR_PUBLIC,
scan_policy);
}
/*******************************************************************************
**
** Function btm_write_bg_conn_wl
**
** Description This function write background connection device list into
** controller.
*******************************************************************************/
void btm_write_bg_conn_wl(void)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT8 i;
BTM_TRACE_EVENT0 ("btm_write_bg_conn_wl");
btm_ble_clear_white_list();
for (i = 0; i < p_cb->bg_conn_dev_num; i ++)
{
if (!btm_update_dev_to_white_list(TRUE, p_cb->bg_conn_dev_list[i], BLE_ADDR_PUBLIC))
break;
}
return;
}
/*******************************************************************************
**
** Function btm_ble_suspend_bg_conn
**
** Description This function is to suspend an active background connection
** procedure.
**
** Parameters none.
**
** Returns none.
**
*******************************************************************************/
void btm_ble_suspend_bg_conn(void)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
BTM_TRACE_EVENT0 ("btm_ble_suspend_bg_conn");
if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO)
{
btm_ble_start_auto_conn(FALSE);
}
else if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE)
{
btm_ble_start_select_conn(FALSE, NULL);
}
}
/*******************************************************************************
**
** Function btm_update_bg_conn_list
**
** Description This function update the local background connection device list.
*******************************************************************************/
BOOLEAN btm_update_bg_conn_list(BOOLEAN to_add, BD_ADDR bd_addr, UINT8 *p_attr_tag)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
tBTM_LE_BG_CONN_DEV *p_bg_dev = &p_cb->bg_dev_list[0], *p_next, *p_cur;
UINT8 i, j;
BOOLEAN ret = FALSE;
BTM_TRACE_EVENT0 ("btm_update_bg_conn_list");
if ((to_add && (p_cb->bg_dev_num == BTM_BLE_MAX_BG_CONN_DEV_NUM || p_cb->num_empty_filter == 0)))
{
BTM_TRACE_DEBUG1("num_empty_filter = %d", p_cb->num_empty_filter);
return ret;
}
for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM; i ++, p_bg_dev ++)
{
if (p_bg_dev->in_use && memcmp(p_bg_dev->bd_addr, bd_addr, BD_ADDR_LEN) == 0)
{
if (!to_add)
{
memset(p_bg_dev, 0, sizeof(tBTM_LE_BG_CONN_DEV));
p_cb->bg_dev_num --;
p_cur = p_bg_dev;
p_next = p_bg_dev + 1;
for (j = i + 1 ;j < BTM_BLE_MAX_BG_CONN_DEV_NUM && p_next->in_use ; j ++, p_cur ++, p_next ++ )
memcpy(p_cur, p_next, sizeof(tBTM_LE_BG_CONN_DEV));
}
ret = TRUE;
break;
}
else if (!p_bg_dev->in_use && to_add)
{
BTM_TRACE_DEBUG0("add new WL entry in bg_dev_list");
memcpy(p_bg_dev->bd_addr, bd_addr, BD_ADDR_LEN);
p_bg_dev->in_use = TRUE;
p_cb->bg_dev_num ++;
ret = TRUE;
break;
}
}
return ret;
}
/*******************************************************************************
**
** Function btm_update_scanner_filter_policy
**
** Description This function update the filter policy of scnner or advertiser.
*******************************************************************************/
void btm_update_scanner_filter_policy(tBTM_BLE_SFP scan_policy)
{
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
BTM_TRACE_EVENT0 ("btm_update_scanner_filter_policy");
p_inq->sfp = scan_policy;
#ifdef BLUETOOTH_RTK
p_inq->scan_type = (p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ? BTM_BLE_SCAN_MODE_PASS: p_inq->scan_type;
#else
p_inq->scan_type = (p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ? BTM_BLE_SCAN_MODE_ACTI: p_inq->scan_type;
#endif
btsnd_hcic_ble_set_scan_params (p_inq->scan_type,
(UINT16)(!p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval),
(UINT16)(!p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window),
BLE_ADDR_PUBLIC,
scan_policy);
}
/*******************************************************************************
**
** Function btm_ble_count_unconn_dev_in_whitelist
**
** Description This function check the number of unconnected device in white list.
*******************************************************************************/
UINT8 btm_ble_count_unconn_dev_in_whitelist(void)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT8 count = 0, i;
BD_ADDR dummy_bda ={0};
BTM_TRACE_EVENT0 ("btm_ble_find_dev_in_whitelist");
for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM && i < p_cb->max_filter_entries; i ++)
{
if (memcmp(p_cb->bg_conn_dev_list[i], dummy_bda, BD_ADDR_LEN) != 0 &&
!BTM_IsAclConnectionUp(p_cb->bg_conn_dev_list[i]))
{
count ++;
}
}
return count;
}
/*******************************************************************************
**
** Function btm_ble_find_dev_in_whitelist
**
** Description This function check if the device is in the white list
*******************************************************************************/
BOOLEAN btm_ble_find_dev_in_whitelist(BD_ADDR bd_addr)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT8 i;
BTM_TRACE_EVENT0 ("btm_ble_find_dev_in_whitelist");
/* empty wl */
if (p_cb->num_empty_filter == p_cb->max_filter_entries)
{
BTM_TRACE_DEBUG0("white list empty");
return FALSE;
}
for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM && i < p_cb->max_filter_entries; i ++)
{
if (memcmp(p_cb->bg_conn_dev_list[i], bd_addr, BD_ADDR_LEN) == 0)
return TRUE;
}
return FALSE;
}
/*******************************************************************************
**
** Function btm_update_adv_filter_policy
**
** Description This function update the filter policy of scnner or advertiser.
*******************************************************************************/
void btm_update_adv_filter_policy(tBTM_BLE_AFP adv_policy)
{
tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
BTM_TRACE_EVENT0 ("btm_update_adv_filter_policy");
p_cb->afp = adv_policy;
}
/*******************************************************************************
**
** Function btm_ble_clear_white_list
**
** Description This function clears the white list.
*******************************************************************************/
void btm_ble_clear_white_list (void)
{
BTM_TRACE_EVENT0 ("btm_ble_clear_white_list");
btsnd_hcic_ble_clear_white_list();
}
/*******************************************************************************
**
** Function btm_sec_alloc_dev
**
** Description Look for the record in the device database for the record
** with specified handle
**
** Returns Pointer to the record
**
*******************************************************************************/
tBTM_SEC_DEV_REC *btm_sec_alloc_dev (BD_ADDR bd_addr)
{
tBTM_SEC_DEV_REC *p_dev_rec = NULL;
tBTM_INQ_INFO *p_inq_info;
int i;
BTM_TRACE_EVENT0 ("btm_sec_alloc_dev");
for (i = 0; i < BTM_SEC_MAX_DEVICE_RECORDS; i++)
{
if (!(btm_cb.sec_dev_rec[i].sec_flags & BTM_SEC_IN_USE))
{
p_dev_rec = &btm_cb.sec_dev_rec[i];
break;
}
}
if (!p_dev_rec)
p_dev_rec = btm_find_oldest_dev();
memset (p_dev_rec, 0, sizeof (tBTM_SEC_DEV_REC));
p_dev_rec->sec_flags = BTM_SEC_IN_USE;
/* Check with the BT manager if details about remote device are known */
/* outgoing connection */
if ((p_inq_info = BTM_InqDbRead(bd_addr)) != NULL)
{
memcpy (p_dev_rec->dev_class, p_inq_info->results.dev_class, DEV_CLASS_LEN);
#if BLE_INCLUDED == TRUE
p_dev_rec->device_type = p_inq_info->results.device_type;
p_dev_rec->ble.ble_addr_type = p_inq_info->results.ble_addr_type;
/* update conn params, use default value for background connection params */
memset(&p_dev_rec->conn_params, 0xff, sizeof(tBTM_LE_CONN_PRAMS));
#endif
#if BTM_INQ_GET_REMOTE_NAME == TRUE
if (p_inq_info->remote_name_state == BTM_INQ_RMT_NAME_DONE)
{
BCM_STRNCPY_S ((char *)p_dev_rec->sec_bd_name, sizeof (p_dev_rec->sec_bd_name),
(char *)p_inq_info->remote_name, BTM_MAX_REM_BD_NAME_LEN);
p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
}
#endif
}
else
{
#if BLE_INCLUDED == TRUE
/* update conn params, use default value for background connection params */
memset(&p_dev_rec->conn_params, 0xff, sizeof(tBTM_LE_CONN_PRAMS));
#endif
if (!memcmp (bd_addr, btm_cb.connecting_bda, BD_ADDR_LEN))
memcpy (p_dev_rec->dev_class, btm_cb.connecting_dc, DEV_CLASS_LEN);
}
memcpy (p_dev_rec->bd_addr, bd_addr, BD_ADDR_LEN);
p_dev_rec->hci_handle = BTM_GetHCIConnHandle (bd_addr);
p_dev_rec->timestamp = btm_cb.dev_rec_count++;
p_dev_rec->pin_key_len = 0;
return(p_dev_rec);
}
/*******************************************************************************
**
** 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_EVENT0 ("btm_ble_start_select_conn");
scan_int = (p_cb->scan_int == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_CONN_EST_SCAN_INT : p_cb->scan_int;
scan_win = (p_cb->scan_win == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_CONN_EST_SCAN_WIND : p_cb->scan_win;
if (start)
{
if (!btm_cb.btm_inq_vars.inq_active)
{
btm_cb.ble_ctr_cb.p_select_cback = p_select_cback;
btm_update_scanner_filter_policy(SP_ADV_WL);
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 */
BLE_ADDR_PUBLIC, /* own device, DUMO always use public */
SP_ADV_WL) /* process advertising packets only from devices in the White List */
)
return FALSE;
if (p_cb->inq_var.adv_mode == BTM_BLE_ADV_ENABLE)
{
BTM_TRACE_ERROR0("peripheral device cannot initiate a selective connection");
return FALSE;
}
else if (p_cb->bg_conn_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 */
btm_cb.btm_inq_vars.inq_active = TRUE;
btm_cb.ble_ctr_cb.inq_var.proc_mode = BTM_BLE_SELECT_SCAN;
p_cb->bg_conn_state = BLE_BG_CONN_ACTIVE;
}
}
else
{
BTM_TRACE_ERROR0("scan active, can not start selective connection procedure");
return FALSE;
}
}
else /* disable selective connection mode */
{
p_cb->p_select_cback = NULL;
btm_cb.btm_inq_vars.inq_active = FALSE;
btm_cb.ble_ctr_cb.inq_var.proc_mode = BTM_BLE_INQUIRY_NONE;
btm_update_scanner_filter_policy(SP_ADV_ALL);
/* stop scanning */
if (p_cb->bg_conn_dev_num > 0)
{
if (!btsnd_hcic_ble_set_scan_enable(FALSE, TRUE)) /* duplicate filtering enabled */
return FALSE;
}
}
return TRUE;
}
