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BLEDeviceManager.cpp
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/*
BLE Device API
Copyright (c) 2016 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CurieBLE.h"
#include "BLEDeviceManager.h"
#include "BLEProfileManager.h"
#include "internal/ble_client.h"
#include <atomic.h>
#include "../src/services/ble/conn_internal.h"
#include "BLEUtils.h"
#include "BLECallbacks.h"
BLEDeviceManager* BLEDeviceManager::_instance;
BLEDeviceManager::BLEDeviceManager():
_min_conn_interval(0),
_max_conn_interval(0),
_adv_critical_local_name(""),
_wait_for_connect_peripheral_adv_rssi(0),
_available_for_connect_peripheral_adv_rssi(0),
_connecting(false),
_has_service_uuid(false),
_has_service_solicit_uuid(false),
_appearance(0),
_manufacturer_data_length(0),
_service_data_length(0),
_adv_type(0),
_adv_data_idx(0),
_local_name(""),
_state(BLE_PERIPH_STATE_NOT_READY),
_local_ble(NULL),
_peer_peripheral_index(0)
{
memset(&_local_bda, 0, sizeof(_local_bda));
memset(&_wait_for_connect_peripheral, 0, sizeof(_wait_for_connect_peripheral));
memset(&_service_uuid, 0, sizeof(_service_uuid));
memset(&_service_solicit_uuid, 0, sizeof(_service_solicit_uuid));
memset(&_service_data_uuid, 0, sizeof(_service_data_uuid));
memset(_service_data, 0, sizeof(_service_data));
memset(_service_data_buf, 0, sizeof(_service_data_buf));
memset(_adv_data, 0, sizeof(_adv_data));
memset(&_peer_central, 0, sizeof (bt_addr_le_t));
ble_client_get_factory_config(&_local_bda, _device_name);
_adv_param.type = BT_LE_ADV_IND;
_adv_param.addr_type = _local_bda.type;
_adv_param.interval_min = 0xA0;
_adv_param.interval_max = 0xF0;
_scan_param.type = BT_HCI_LE_SCAN_ACTIVE;
_scan_param.filter_dup = BT_HCI_LE_SCAN_FILTER_DUP_ENABLE;
_scan_param.interval = BT_GAP_SCAN_FAST_INTERVAL;
_scan_param.window = BT_GAP_SCAN_FAST_WINDOW;
memset(_peer_adv_buffer, 0, sizeof(_peer_adv_buffer));
memset(_peer_adv_mill, 0, sizeof(_peer_adv_mill));
memset(&_adv_accept_critical, 0, sizeof(_adv_accept_critical));
memset(&_adv_critical_service_uuid, 0, sizeof(_adv_critical_service_uuid));
memset(_peer_peripheral, 0, sizeof(_peer_peripheral));
memset(_peer_peripheral_adv_data, 0, sizeof(_peer_peripheral_adv_data));
memset(_peer_peripheral_adv_data_len, 0, sizeof(_peer_peripheral_adv_data_len));
memset(_peer_peripheral_adv_rssi, 0, sizeof(_peer_peripheral_adv_rssi));
memset(_device_events, 0, sizeof(_device_events));
memset(_manufacturer_data, 0, sizeof(_manufacturer_data));
memset(_peer_adv_data, 0, sizeof(_peer_adv_data));
memset(_peer_adv_data_len, 0, sizeof(_peer_adv_data_len));
memset(_peer_adv_rssi, 0, sizeof(_peer_adv_rssi));
}
BLEDeviceManager::~BLEDeviceManager()
{
}
bool BLEDeviceManager::begin(BLEDevice *device)
{
if (NULL == _local_ble)
{
_local_ble = device;
bt_le_set_mac_address(_local_bda);
// Set device name
setDeviceName();
_state = BLE_PERIPH_STATE_READY;
delay(4);
// TODO: Olny allow call one time
ble_client_init (bleConnectEventHandler, this,
bleDisconnectEventHandler, this,
bleParamUpdatedEventHandler, this);
return true;
}
else
{
return false;
}
}
void BLEDeviceManager::poll()
{
if (NULL != _device_events[BLEDiscovered])
{
BLEDevice tempdev = available();
while (tempdev)
{
_device_events[BLEDiscovered](tempdev);
tempdev = available();
}
}
}
void BLEDeviceManager::end()
{
}
bool BLEDeviceManager::connected(const BLEDevice *device) const
{
bt_conn_t* conn = bt_conn_lookup_addr_le(device->bt_le_address());
bool retval = false;
//pr_debug(LOG_MODULE_BLE, "%s-%d: add-%s", __FUNCTION__, __LINE__, device->address().c_str());
if (NULL != conn)
{
//pr_debug(LOG_MODULE_BLE, "%s-%d: state-%d", __FUNCTION__, __LINE__,conn->state);
if (conn->state == BT_CONN_CONNECTED)
{
retval = true;
}
bt_conn_unref(conn);
}
return retval;
}
bool BLEDeviceManager::disconnectSingle(const bt_addr_le_t *peer)
{
int err = 0;
bt_conn_t* conn = bt_conn_lookup_addr_le(peer);
if (NULL == conn)
{
return false;
}
err = bt_conn_disconnect (conn, BT_HCI_ERR_REMOTE_USER_TERM_CONN);
while (err == 0 && conn->state != BT_CONN_DISCONNECTED)
{
delay(10);
}
bt_conn_unref(conn);
return true;
}
bool BLEDeviceManager::disconnect(BLEDevice *device)
{
bool ret = true;
if (false == BLEUtils::isLocalBLE(*device))
{
// Remote device disconnect one
ret = disconnectSingle(device->bt_le_address());
}
else
{
// Local device disconnect all connections
if (true == BLEUtils::macAddressValid(_peer_central))
{
ret = disconnectSingle(&_peer_central);
}
for (int i = 0; i < BLE_MAX_CONN_CFG; i++)
{
if (true == BLEUtils::macAddressValid(_peer_peripheral[i]))
{
ret = disconnectSingle(&_peer_central);
}
}
}
return ret;
}
void BLEDeviceManager::setAdvertisedServiceUuid(const char* advertisedServiceUuid)
{
_has_service_uuid = true;
BLEUtils::uuidString2BT(advertisedServiceUuid, (bt_uuid_t *)&_service_uuid);
}
void BLEDeviceManager::setAdvertisedServiceData(const bt_uuid_t* serviceDataUuid,
const uint8_t* serviceData,
uint8_t serviceDataLength)
{
memcpy(&_service_data_uuid, serviceDataUuid, sizeof(_service_data_uuid));
if (serviceDataLength > BLE_MAX_ADV_SIZE)
{
serviceDataLength = BLE_MAX_ADV_SIZE;
}
memcpy(_service_data, serviceData, serviceDataLength);
_service_data_length = serviceDataLength;
}
void BLEDeviceManager::setServiceSolicitationUuid(const char* serviceSolicitationUuid)
{
_has_service_solicit_uuid = true;
BLEUtils::uuidString2BT(serviceSolicitationUuid, (bt_uuid_t *)&_service_solicit_uuid);
}
void BLEDeviceManager::setManufacturerData(const unsigned char manufacturerData[],
unsigned char manufacturerDataLength)
{
if (manufacturerDataLength > BLE_MAX_ADV_SIZE)
{
manufacturerDataLength = BLE_MAX_ADV_SIZE;
}
_manufacturer_data_length = manufacturerDataLength;
memcpy(_manufacturer_data, manufacturerData, manufacturerDataLength);
}
void BLEDeviceManager::setLocalName(const char *localName)
{
_local_name = localName;
}
void BLEDeviceManager::setAdvertisingInterval(float advertisingInterval)
{
uint16_t interval = (uint16_t) MSEC_TO_UNITS(advertisingInterval, UNIT_0_625_MS);
_adv_param.interval_min = interval;
_adv_param.interval_max = interval;
}
void BLEDeviceManager::setConnectionInterval(float minimumConnectionInterval,
float maximumConnectionInterval,
uint16_t latency,
uint16_t timeout)
{
}
void BLEDeviceManager::setConnectionInterval(float minimumConnectionInterval,
float maximumConnectionInterval)
{
}
bool BLEDeviceManager::setTxPower(int txPower)
{
ble_gap_set_tx_power(txPower);
return true;
}
void BLEDeviceManager::setConnectable(bool connectable)
{
uint8_t type = BT_LE_ADV_IND;
if (connectable == false)
{
type = BT_LE_ADV_NONCONN_IND;
}
_adv_param.type = type;
}
void BLEDeviceManager::setDeviceName(const char* deviceName)
{
memset(_device_name, 0, sizeof(_device_name));
if (deviceName && deviceName[0])
{
int len = strlen(deviceName);
if (len > BLE_MAX_DEVICE_NAME)
len = BLE_MAX_DEVICE_NAME;
memcpy(_device_name, deviceName, len);
if (NULL != _local_ble)
{
setDeviceName();
}
}
}
void
BLEDeviceManager::setDeviceName()
{
int len = strlen(_device_name);
bt_le_set_device_name(_device_name, len);
}
void BLEDeviceManager::setAppearance(unsigned short appearance)
{
_appearance = appearance;
}
BLE_STATUS_T
BLEDeviceManager::_advDataInit(void)
{
uint8_t lengthTotal = 2; // Flags data length
_adv_data_idx = 0;
/* Add flags */
_adv_type = (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR);
_adv_data[_adv_data_idx].type = BT_DATA_FLAGS;
_adv_data[_adv_data_idx].data = &_adv_type;
_adv_data[_adv_data_idx].data_len = 1;
_adv_data_idx++;
if (_has_service_uuid)
{
uint8_t type;
uint8_t length;
uint8_t *data = NULL;
pr_info(LOG_MODULE_BLE, "ADV Type-%d", _service_uuid.uuid.type);
if (BT_UUID_TYPE_16 == _service_uuid.uuid.type)
{
//UINT16_TO_LESTREAM(adv_tmp, uuid.uuid16);
data = (uint8_t *)&(((bt_uuid_16_t *)&_service_uuid)->val);
length = UUID_SIZE_16;
type = BT_DATA_UUID16_ALL;
}
else // Sid. KW, default is BT_UUID_TYPE_128
{
data = _service_uuid.val;
length = UUID_SIZE_128;
type = BT_DATA_UUID128_ALL;
}
// if (data) // Sid. KW, data is always initialized
{
_adv_data[_adv_data_idx].type = type;
_adv_data[_adv_data_idx].data = data;
_adv_data[_adv_data_idx].data_len = length;
_adv_data_idx++;
lengthTotal += length;
pr_info(LOG_MODULE_BLE, "Service UUID Len -%d", length);
}
}
if (_has_service_solicit_uuid)
{
uint8_t type;
uint8_t length;
uint8_t *data = NULL;
pr_info(LOG_MODULE_BLE, "ADV Type-%d", _service_solicit_uuid.uuid.type);
if (BT_UUID_TYPE_16 == _service_solicit_uuid.uuid.type)
{
//UINT16_TO_LESTREAM(adv_tmp, uuid.uuid16);
data = (uint8_t *)&(((bt_uuid_16_t *)&_service_solicit_uuid)->val);
length = UUID_SIZE_16;
type = BT_DATA_SOLICIT16;
}
else // Sid. KW, default is BT_UUID_TYPE_128
{
data = _service_solicit_uuid.val;
length = UUID_SIZE_128;
type = BT_DATA_SOLICIT128;
}
// Sid. KW, data is always initialized. if (data)
{
_adv_data[_adv_data_idx].type = type;
_adv_data[_adv_data_idx].data = data;
_adv_data[_adv_data_idx].data_len = length;
_adv_data_idx++;
lengthTotal += length;
pr_info(LOG_MODULE_BLE, "Service UUID Len -%d", length);
}
}
if (_local_name.length() > 0)
{
/* Add device name (truncated if too long) */
_adv_data[_adv_data_idx].type = BT_DATA_NAME_COMPLETE;
_adv_data[_adv_data_idx].data = (const uint8_t*)_local_name.c_str();
_adv_data[_adv_data_idx].data_len = _local_name.length();
_adv_data_idx++;
lengthTotal += _local_name.length();
pr_info(LOG_MODULE_BLE, "Local Name -%s", _local_name.c_str());
pr_info(LOG_MODULE_BLE, "Local Name Len -%d", _local_name.length());
}
if (_manufacturer_data_length > 0)
{
// Add manufacturer data
_adv_data[_adv_data_idx].type = BT_DATA_MANUFACTURER_DATA;
_adv_data[_adv_data_idx].data = _manufacturer_data;
_adv_data[_adv_data_idx].data_len = _manufacturer_data_length;
_adv_data_idx++;
lengthTotal += _manufacturer_data_length;
}
if (_service_data_length > 0)
{
/* Add Service Data (if it will fit) */
/* A 128-bit Service Data UUID won't fit in an Advertising packet */
if (BT_UUID_TYPE_16 != _service_data_uuid.uuid.type)
{
/* We support service data only for 16-bit service UUID */
return BLE_STATUS_NOT_SUPPORTED;
}
uint8_t block_len = sizeof(uint16_t) + _service_data_length;
if (1 + block_len > BLE_MAX_ADV_SIZE)
{
// Service data block is too large.
return BLE_STATUS_ERROR_PARAMETER;
}
_adv_data[_adv_data_idx].type = BT_DATA_SVC_DATA16;
_adv_data[_adv_data_idx].data = _service_data_buf;
_adv_data[_adv_data_idx].data_len = block_len;
_adv_data_idx++;
uint8_t *adv_tmp = _service_data_buf;
//UINT16_TO_LESTREAM(adv_tmp, (((bt_uuid_16_t *)&_service_data_uuid)->val));
memcpy(adv_tmp, &((bt_uuid_16_t*)&_service_data_uuid)->val, sizeof(uint16_t));
adv_tmp += 2;
memcpy(adv_tmp, _service_data, _service_data_length);
lengthTotal += block_len;
pr_info(LOG_MODULE_BLE, "SVC Len -%d", block_len);
}
if (lengthTotal > BLE_MAX_ADV_SIZE)
{
pr_error(LOG_MODULE_BLE, "ADV Total length-%d", lengthTotal);
// Service data block is too large.
return BLE_STATUS_ERROR_PARAMETER;
}
return BLE_STATUS_SUCCESS;
}
BLE_STATUS_T BLEDeviceManager::startAdvertising()
{
int ret;
BLE_STATUS_T status;
status = _advDataInit();
if (BLE_STATUS_SUCCESS != status)
{
return status;
}
pr_info(LOG_MODULE_BLE, "%s-ad_len%d", __FUNCTION__, _adv_data_idx);
if (_state != BLE_PERIPH_STATE_READY)
return BLE_STATUS_WRONG_STATE;
ret = bt_le_adv_start(&_adv_param, _adv_data, _adv_data_idx, NULL, 0);
if (0 != ret)
{
pr_error(LOG_MODULE_APP, "[ADV] Start failed. Error: %d", ret);
return BLE_STATUS_WRONG_STATE;
}
delay(10);
_state = BLE_PERIPH_STATE_ADVERTISING;
return BLE_STATUS_SUCCESS;
}
bool BLEDeviceManager::advertising()
{
return (BLE_PERIPH_STATE_ADVERTISING == _state);
}
BLE_STATUS_T BLEDeviceManager::stopAdvertising()
{
int err_code = 0;
BLE_STATUS_T status = BLE_STATUS_WRONG_STATE;
if (BLE_PERIPH_STATE_ADVERTISING == _state)
{
err_code = bt_le_adv_stop();
status = errorno_to_ble_status(err_code);
}
if (BLE_STATUS_SUCCESS != status)
return status;
_state = BLE_PERIPH_STATE_READY;
return BLE_STATUS_SUCCESS;
}
BLEDevice BLEDeviceManager::central()
{
BLEDevice temp(&_peer_central);
return temp;
}
BLEDevice BLEDeviceManager::peripheral()
{
BLEDevice temp;
for (int i = 0; i < BLE_MAX_CONN_CFG; i++)
{
if (_peer_peripheral_index >= BLE_MAX_CONN_CFG)
{
_peer_peripheral_index = 0;
}
const bt_addr_le_t & addr = _peer_peripheral[_peer_peripheral_index];
_peer_peripheral_index++;
if (true == BLEUtils::macAddressValid(addr))
{
temp.setAddress(addr);
break;
}
}
return temp;
}
bool BLEDeviceManager::startScanning()
{
_scan_param.filter_dup = BT_HCI_LE_SCAN_FILTER_DUP_ENABLE;//BT_HCI_LE_SCAN_FILTER_DUP_DISABLE;
int err = bt_le_scan_start(&_scan_param, ble_central_device_found);
if (err)
{
pr_info(LOG_MODULE_BLE, "Scanning failed to start (err %d)\n", err);
return false;
}
return true;
}
bool BLEDeviceManager::startScanningWithDuplicates()
{
_scan_param.filter_dup = BT_HCI_LE_SCAN_FILTER_DUP_ENABLE;
int err = bt_le_scan_start(&_scan_param, ble_central_device_found);
if (err)
{
pr_info(LOG_MODULE_BLE, "Scanning failed to start (err %d)\n", err);
return false;
}
return false;
}
bool BLEDeviceManager::stopScanning()
{
int err = bt_le_scan_stop();
if (err) // Sid. TODO: KW detected bt_le_scan_stop return only 0.
{
pr_info(LOG_MODULE_BLE, "Stop LE scan failed (err %d)\n", err);
return false;
}
return true;
}
void BLEDeviceManager::clearAdvertiseCritical()
{
memset(&_adv_accept_critical, 0, sizeof(_adv_accept_critical));
//memset(&_adv_critical_service_uuid, 0, sizeof(_adv_critical_service_uuid));
}
void BLEDeviceManager::setAdvertiseCritical(String name)
{
_adv_critical_local_name = name;
_adv_accept_critical.type = BT_DATA_NAME_COMPLETE;
_adv_accept_critical.data_len = name.length();
_adv_accept_critical.data = (const uint8_t*)_adv_critical_local_name.c_str();
}
void BLEDeviceManager::setAdvertiseCritical(BLEService& service)
{
BLEUtils::uuidString2BT(service.uuid(),(bt_uuid_t *)&_adv_critical_service_uuid);
uint8_t type = 0;
uint8_t length = 0;
uint8_t *data = NULL;
pr_info(LOG_MODULE_BLE, "ADV Type-%d", _adv_critical_service_uuid.uuid.type);
if (BT_UUID_TYPE_16 == _adv_critical_service_uuid.uuid.type)
{
data = (uint8_t *)&(((bt_uuid_16_t *)&_adv_critical_service_uuid)->val);
length = UUID_SIZE_16;
type = BT_DATA_UUID16_ALL;
}
else // Sid. KW, default is BT_UUID_TYPE_128
{
data = _adv_critical_service_uuid.val;
length = UUID_SIZE_128;
type = BT_DATA_UUID128_ALL;
}
_adv_accept_critical.type = type;
_adv_accept_critical.data_len = length;
_adv_accept_critical.data = data;
}
bool BLEDeviceManager::hasLocalName(const BLEDevice* device) const
{
if (BLEUtils::isLocalBLE(*device) == true)
{
return (_local_name.length() != 0);
}
const uint8_t* adv_data = NULL;
uint8_t adv_data_len = 0;
getDeviceAdvertiseBuffer(device->bt_le_address(),
adv_data,
adv_data_len);
if (NULL == adv_data)
{
return false;
}
while (adv_data_len > 1)
{
uint8_t len = adv_data[0];
uint8_t type = adv_data[1];
/* Check for early termination */
if (len == 0)
{
return false;
}
if ((len + 1) > adv_data_len) { // Sid. KW, can't be (adv_data_len < 2)
pr_info(LOG_MODULE_BLE, "AD malformed\n");
return false;
}
if (type == BT_DATA_NAME_COMPLETE)
{
return true;
}
adv_data_len -= len + 1;
adv_data += len + 1;
}
return false;
}
bool BLEDeviceManager::hasAdvertisedServiceUuid(const BLEDevice* device) const
{
if (BLEUtils::isLocalBLE(*device) == true)
{
return _has_service_uuid;
}
uint8_t service_cnt = advertisedServiceUuidCount(device);
return (service_cnt > 0);
}
bool BLEDeviceManager::hasAdvertisedServiceUuid(const BLEDevice* device, int index) const
{
uint8_t service_cnt = advertisedServiceUuidCount(device);
return (service_cnt > index);
}
void BLEDeviceManager::getDeviceAdvertiseBuffer(const bt_addr_le_t* addr,
const uint8_t* &adv_data,
uint8_t &adv_len) const
{
const bt_addr_le_t* temp = NULL;
// Connected device
for (int i = 0; i < BLE_MAX_CONN_CFG; i++)
{
temp = &_peer_peripheral[i];
if (bt_addr_le_cmp(temp, addr) == 0)
{
adv_data = _peer_peripheral_adv_data[i];
adv_len = _peer_peripheral_adv_data_len[i];
return;
}
}
// Connecting device
if (bt_addr_le_cmp(&_wait_for_connect_peripheral, addr) == 0)
{
adv_data = _wait_for_connect_peripheral_adv_data;
adv_len = _wait_for_connect_peripheral_adv_data_len;
return;
}
// Available device
if (bt_addr_le_cmp(&_available_for_connect_peripheral, addr) == 0)
{
adv_data = _available_for_connect_peripheral_adv_data;
adv_len = _available_for_connect_peripheral_adv_data_len;
return;
}
return;
}
int BLEDeviceManager::advertisedServiceUuidCount(const BLEDevice* device) const
{
const uint8_t* adv_data = NULL;
uint8_t adv_data_len = 0;
uint8_t service_cnt = 0;
if (BLEUtils::isLocalBLE(*device) == true)
{
if (_has_service_uuid)
service_cnt++;
return service_cnt;
}
getDeviceAdvertiseBuffer(device->bt_le_address(),
adv_data,
adv_data_len);
if (NULL == adv_data)
{
return service_cnt;
}
while (adv_data_len > 1)
{
uint8_t len = adv_data[0];
uint8_t type = adv_data[1];
/* Check for early termination */
if (len == 0)
{
return service_cnt;
}
if ((len + 1) > adv_data_len) { // Sid. KW, can't be (adv_data_len < 2)
pr_info(LOG_MODULE_BLE, "AD malformed\n");
return service_cnt;
}
if (type == BT_DATA_UUID16_ALL ||
type == BT_DATA_UUID128_ALL)
{
service_cnt++;
}
adv_data_len -= len + 1;
adv_data += len + 1;
}
return service_cnt;
}
String BLEDeviceManager::localName(const BLEDevice* device) const
{
if (BLEUtils::isLocalBLE(*device) == true)
{
return _local_name;
}
const uint8_t* adv_data = NULL;
uint8_t adv_data_len = 0;
char localname_string[BLE_MAX_ADV_SIZE];
memset(localname_string, 0, sizeof(localname_string));
getDeviceAdvertiseBuffer(device->bt_le_address(),
adv_data,
adv_data_len);
if (NULL == adv_data) {
String temp(localname_string);
return temp;
}
while (adv_data_len > 1)
{
uint8_t len = adv_data[0];
uint8_t type = adv_data[1];
/* Check for early termination */
if (len == 0) {
String temp(localname_string);
return temp;
}
if ((len + 1) > adv_data_len) { // Sid. KW, cannot be (adv_data_len < 2)
pr_info(LOG_MODULE_BLE, "AD malformed\n");
String temp(localname_string);
return temp;
}
if (type == BT_DATA_NAME_COMPLETE)
{
if (len >= BLE_MAX_ADV_SIZE)
{
len = BLE_MAX_ADV_SIZE-1;
}
uint8_t copy_len = len - 1;
memcpy(localname_string, &adv_data[2], copy_len);
localname_string[copy_len] = '\0';
break;
}
adv_data_len -= len + 1;
adv_data += len + 1;
}
String temp(localname_string);
return temp;
}
String BLEDeviceManager::advertisedServiceUuid(const BLEDevice* device) const
{
return advertisedServiceUuid(device, 0);
}
String BLEDeviceManager::advertisedServiceUuid(const BLEDevice* device, int index) const
{
const uint8_t* adv_data = NULL;
uint8_t adv_data_len = 0;
uint8_t service_cnt = 0;
bt_uuid_128_t service_uuid;
char uuid_string[37];
memset(uuid_string, 0, sizeof(uuid_string));
if (BLEUtils::isLocalBLE(*device) == true)
{
// Local device only support advertise 1 service now.
if (_has_service_uuid && index == 0)
{
BLEUtils::uuidBT2String(&_service_uuid.uuid, uuid_string);
}
return String(uuid_string);
}
getDeviceAdvertiseBuffer(device->bt_le_address(),
adv_data,
adv_data_len);
if ((uint8_t *)NULL == adv_data)
{
return String(uuid_string);
}
while (adv_data_len > 1)
{
uint8_t len = adv_data[0];
uint8_t type = adv_data[1];
/* Check for early termination */
if (len == 0)
{
return String(uuid_string);
}
if ((len + 1) > adv_data_len) { // Sid. KW, cannot be adv_data_len < 2
pr_info(LOG_MODULE_BLE, "AD malformed\n");
return String(uuid_string);
}
if (type == BT_DATA_UUID16_ALL ||
type == BT_DATA_UUID128_ALL)
{
service_cnt++;
}
if (index < service_cnt)
{
if (type == BT_DATA_UUID16_ALL)
{
service_uuid.uuid.type = BT_UUID_TYPE_16;
memcpy(&BT_UUID_16(&service_uuid.uuid)->val, &adv_data[2], 2);
}
else
{
service_uuid.uuid.type = BT_UUID_TYPE_128;
memcpy(service_uuid.val, &adv_data[2], 16);
}
BLEUtils::uuidBT2String(&service_uuid.uuid, uuid_string);
break;
}
adv_data_len -= len + 1;
adv_data += len + 1;
}
return String(uuid_string);
}
int BLEDeviceManager::rssi(const BLEDevice* device) const
{
const bt_addr_le_t* temp = NULL;
const bt_addr_le_t* addr = device->bt_le_address();
// Connected device
for (int i = 0; i < BLE_MAX_CONN_CFG; i++)
{
temp = &_peer_peripheral[i];
if (bt_addr_le_cmp(temp, addr) == 0)
{
return _peer_peripheral_adv_rssi[i];
}
}
// Connecting device
if (bt_addr_le_cmp(&_wait_for_connect_peripheral, addr) == 0)
{
return _wait_for_connect_peripheral_adv_rssi;
}
// Available device
if (bt_addr_le_cmp(&_available_for_connect_peripheral, addr) == 0)
{
return _available_for_connect_peripheral_adv_rssi;
}
return 0;
}
bool BLEDeviceManager::connect(BLEDevice &device)
{
//
uint64_t timestamp = millis();
uint64_t timestampcur = timestamp;
bool ret = true;
bt_addr_le_copy(&_wait_for_connect_peripheral, device.bt_le_address());
// Buffer the ADV data
memcpy(_wait_for_connect_peripheral_adv_data, _available_for_connect_peripheral_adv_data, BLE_MAX_ADV_SIZE);
_wait_for_connect_peripheral_adv_data_len = _available_for_connect_peripheral_adv_data_len;
_wait_for_connect_peripheral_adv_rssi = _available_for_connect_peripheral_adv_rssi;
startScanning();
pr_debug(LOG_MODULE_BLE, "%s-%d", __FUNCTION__, __LINE__);
// Wait for the connection
while (ret && (true == BLEUtils::macAddressValid(_wait_for_connect_peripheral)))
{
timestampcur = millis();
// TODO: dismiss the magic number
ret = (timestampcur - timestamp < 3000); // Time out
}
pr_debug(LOG_MODULE_BLE, "%s-%d", __FUNCTION__, __LINE__);
if (ret == false)
{
memset(&_wait_for_connect_peripheral, 0, sizeof(_wait_for_connect_peripheral));
if (_connecting == true)
{
ret = true;
while (_connecting == true)
{
pr_info(LOG_MODULE_BLE, "%s-%d: Connect request sent, wait for response", __FUNCTION__, __LINE__);
delay(2000);
}
}
else
{
stopScanning();
}
}
return ret;
}
bool BLEDeviceManager::connectToDevice(BLEDevice &device)
{
bt_addr_le_t* temp = NULL;
bt_addr_le_t* unused = NULL;
bool link_existed = false;
bool retval = false;
pr_debug(LOG_MODULE_BLE, "%s-%d-1", __FUNCTION__, __LINE__);
// Find free peripheral Items
for (int i = 0; i < BLE_MAX_CONN_CFG; i++)
{
temp = &_peer_peripheral[i];
if (true == BLEUtils::macAddressValid(*temp))
{
if (bt_addr_le_cmp(temp, device.bt_le_address()) == 0)
{
// Connect request has scheduled but connection don't established.
// The central can see the ADV and no need to send connect request.
link_existed = true;
break;
}
}
else
{
if (NULL == unused)
{
unused = temp;
// Buffer the ADV data
memcpy(_peer_peripheral_adv_data[i],
_wait_for_connect_peripheral_adv_data,
BLE_MAX_ADV_SIZE);
_peer_peripheral_adv_data_len[i] = _wait_for_connect_peripheral_adv_data_len;
_peer_peripheral_adv_rssi[i] = _wait_for_connect_peripheral_adv_rssi;
}
}
}
pr_debug(LOG_MODULE_BLE, "%s-%d:link_existed-%d unused-%p", __FUNCTION__, __LINE__, link_existed, unused);
if (!link_existed && NULL != unused)
{