BLEAdvertising.cpp

/*
 * BLEAdvertising.cpp
 *
 * This class encapsulates advertising a BLE Server.
 *  Created on: Jun 21, 2017
 *      Author: kolban
 *
 * The ESP-IDF provides a framework for BLE advertising.  It has determined that there are a common set
 * of properties that are advertised and has built a data structure that can be populated by the programmer.
 * This means that the programmer doesn't have to "mess with" the low level construction of a low level
 * BLE advertising frame.  Many of the fields are determined for us while others we can set before starting
 * to advertise.
 *
 * Should we wish to construct our own payload, we can use the BLEAdvertisementData class and call the setters
 * upon it.  Once it is populated, we can then associate it with the advertising and what ever the programmer
 * set in the data will be advertised.
 *
 */
#include "soc/soc_caps.h"
#if SOC_BLE_SUPPORTED

#include "sdkconfig.h"
#if defined(CONFIG_BLUEDROID_ENABLED)
#include "BLEAdvertising.h"
#include <esp_err.h>
#include "BLEUtils.h"
#include "GeneralUtils.h"
#include "esp32-hal-log.h"

/**
 * @brief Construct a default advertising object.
 *
 */
BLEAdvertising::BLEAdvertising() : m_scanRespData{} {
  m_advData.set_scan_rsp = false;
  m_advData.include_name = true;
  m_advData.include_txpower = true;
  m_advData.min_interval = 0x20;
  m_advData.max_interval = 0x40;
  m_advData.appearance = 0x00;
  m_advData.manufacturer_len = 0;
  m_advData.p_manufacturer_data = nullptr;
  m_advData.service_data_len = 0;
  m_advData.p_service_data = nullptr;
  m_advData.service_uuid_len = 0;
  m_advData.p_service_uuid = nullptr;
  m_advData.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT);

  m_advParams.adv_int_min = 0x20;
  m_advParams.adv_int_max = 0x40;
  m_advParams.adv_type = ADV_TYPE_IND;
  m_advParams.own_addr_type = BLE_ADDR_TYPE_PUBLIC;
  m_advParams.channel_map = ADV_CHNL_ALL;
  m_advParams.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY;
  m_advParams.peer_addr_type = BLE_ADDR_TYPE_PUBLIC;

  m_customAdvData = false;           // No custom advertising data
  m_customScanResponseData = false;  // No custom scan response data
}  // BLEAdvertising

/**
 * @brief Add a service uuid to exposed list of services.
 * @param [in] serviceUUID The UUID of the service to expose.
 */
void BLEAdvertising::addServiceUUID(BLEUUID serviceUUID) {
  m_serviceUUIDs.push_back(serviceUUID);
}  // addServiceUUID

/**
 * @brief Add a service uuid to exposed list of services.
 * @param [in] serviceUUID The string representation of the service to expose.
 */
void BLEAdvertising::addServiceUUID(const char *serviceUUID) {
  addServiceUUID(BLEUUID(serviceUUID));
}  // addServiceUUID

/**
 * @brief Remove a service uuid to exposed list of services.
 * @param [in] index The index of the service to stop exposing.
 */
bool BLEAdvertising::removeServiceUUID(int index) {

  // If index is larger than the size of the
  // advertised services, return false
  if (index > m_serviceUUIDs.size()) {
    return false;
  }

  m_serviceUUIDs.erase(m_serviceUUIDs.begin() + index);
  return true;
}

/**
 * @brief Remove a service uuid to exposed list of services.
 * @param [in] serviceUUID The BLEUUID of the service to stop exposing.
 */
bool BLEAdvertising::removeServiceUUID(BLEUUID serviceUUID) {
  for (int i = 0; i < m_serviceUUIDs.size(); i++) {
    if (m_serviceUUIDs.at(i).equals(serviceUUID)) {
      return removeServiceUUID(i);
    }
  }
  return false;
}

/**
 * @brief Remove a service uuid to exposed list of services.
 * @param [in] serviceUUID The string of the service to stop exposing.
 */
bool BLEAdvertising::removeServiceUUID(const char *serviceUUID) {
  return removeServiceUUID(BLEUUID(serviceUUID));
}

/**
 * @brief Set the device appearance in the advertising data.
 * The appearance attribute is of type 0x19.  The codes for distinct appearances can be found here:
 * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.gap.appearance.xml.
 * @param [in] appearance The appearance of the device in the advertising data.
 * @return N/A.
 */
void BLEAdvertising::setAppearance(uint16_t appearance) {
  m_advData.appearance = appearance;
}  // setAppearance

void BLEAdvertising::setAdvertisementType(esp_ble_adv_type_t adv_type) {
  m_advParams.adv_type = adv_type;
}  // setAdvertisementType

void BLEAdvertising::setAdvertisementChannelMap(esp_ble_adv_channel_t channel_map) {
  m_advParams.channel_map = channel_map;
}  // setAdvertisementChannelMap

void BLEAdvertising::setMinInterval(uint16_t mininterval) {
  m_advParams.adv_int_min = mininterval;
}  // setMinInterval

void BLEAdvertising::setMaxInterval(uint16_t maxinterval) {
  m_advParams.adv_int_max = maxinterval;
}  // setMaxInterval

void BLEAdvertising::setMinPreferred(uint16_t mininterval) {
  m_advData.min_interval = mininterval;
}  //

void BLEAdvertising::setMaxPreferred(uint16_t maxinterval) {
  m_advData.max_interval = maxinterval;
}  //

void BLEAdvertising::setScanResponse(bool set) {
  m_scanResp = set;
}

/**
 * @brief Set the filtering for the scan filter.
 * @param [in] scanRequestWhitelistOnly If true, only allow scan requests from those on the white list.
 * @param [in] connectWhitelistOnly If true, only allow connections from those on the white list.
 */
void BLEAdvertising::setScanFilter(bool scanRequestWhitelistOnly, bool connectWhitelistOnly) {
  log_v(">> setScanFilter: scanRequestWhitelistOnly: %d, connectWhitelistOnly: %d", scanRequestWhitelistOnly, connectWhitelistOnly);
  if (!scanRequestWhitelistOnly && !connectWhitelistOnly) {
    m_advParams.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY;
    log_v("<< setScanFilter");
    return;
  }
  if (scanRequestWhitelistOnly && !connectWhitelistOnly) {
    m_advParams.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_WLST_CON_ANY;
    log_v("<< setScanFilter");
    return;
  }
  if (!scanRequestWhitelistOnly && connectWhitelistOnly) {
    m_advParams.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_WLST;
    log_v("<< setScanFilter");
    return;
  }
  if (scanRequestWhitelistOnly && connectWhitelistOnly) {
    m_advParams.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_WLST_CON_WLST;
    log_v("<< setScanFilter");
    return;
  }
}  // setScanFilter

/**
 * @brief Set the advertisement data that is to be published in a regular advertisement.
 * @param [in] advertisementData The data to be advertised.
 */
void BLEAdvertising::setAdvertisementData(BLEAdvertisementData &advertisementData) {
  log_v(">> setAdvertisementData");
  esp_err_t errRc = ::esp_ble_gap_config_adv_data_raw((uint8_t *)advertisementData.getPayload().c_str(), advertisementData.getPayload().length());
  if (errRc != ESP_OK) {
    log_e("esp_ble_gap_config_adv_data_raw: %d %s", errRc, GeneralUtils::errorToString(errRc));
  }
  m_customAdvData = true;  // Set the flag that indicates we are using custom advertising data.
  log_v("<< setAdvertisementData");
}  // setAdvertisementData

/**
 * @brief Set the advertisement data that is to be published in a scan response.
 * @param [in] advertisementData The data to be advertised.
 */
void BLEAdvertising::setScanResponseData(BLEAdvertisementData &advertisementData) {
  log_v(">> setScanResponseData");
  esp_err_t errRc = ::esp_ble_gap_config_scan_rsp_data_raw((uint8_t *)advertisementData.getPayload().c_str(), advertisementData.getPayload().length());
  if (errRc != ESP_OK) {
    log_e("esp_ble_gap_config_scan_rsp_data_raw: %d %s", errRc, GeneralUtils::errorToString(errRc));
  }
  m_customScanResponseData = true;  // Set the flag that indicates we are using custom scan response data.
  log_v("<< setScanResponseData");
}  // setScanResponseData

/**
 * @brief Start advertising.
 * Start advertising.
 * @return N/A.
 */
void BLEAdvertising::start() {
  log_v(">> start: customAdvData: %d, customScanResponseData: %d", m_customAdvData, m_customScanResponseData);

  // We have a vector of service UUIDs that we wish to advertise.  In order to use the
  // ESP-IDF framework, these must be supplied in a contiguous array of their 128bit (16 byte)
  // representations.  If we have 1 or more services to advertise then we allocate enough
  // storage to host them and then copy them in one at a time into the contiguous storage.
  int numServices = m_serviceUUIDs.size();
  if (numServices > 0) {
    m_advData.service_uuid_len = 16 * numServices;
    m_advData.p_service_uuid = (uint8_t *)malloc(m_advData.service_uuid_len);
    if (!m_advData.p_service_uuid) {
      log_e(">> start failed: out of memory");
      return;
    }

    uint8_t *p = m_advData.p_service_uuid;
    for (int i = 0; i < numServices; i++) {
      log_d("- advertising service: %s", m_serviceUUIDs[i].toString().c_str());
      BLEUUID serviceUUID128 = m_serviceUUIDs[i].to128();
      memcpy(p, serviceUUID128.getNative()->uuid.uuid128, 16);
      p += 16;
    }
  } else {
    m_advData.service_uuid_len = 0;
    log_d("- no services advertised");
  }

  esp_err_t errRc;

  if (!m_customAdvData) {
    // Set the configuration for advertising.
    m_advData.set_scan_rsp = false;
    m_advData.include_name = !m_scanResp;
    m_advData.include_txpower = !m_scanResp;
    errRc = ::esp_ble_gap_config_adv_data(&m_advData);
    if (errRc != ESP_OK) {
      log_e("<< esp_ble_gap_config_adv_data: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
      return;
    }
  }

  if (!m_customScanResponseData && m_scanResp) {
    // Set the configuration for scan response.
    memcpy(&m_scanRespData, &m_advData, sizeof(esp_ble_adv_data_t));  // Copy the content of m_advData.
    m_scanRespData.set_scan_rsp = true;                               // Define this struct as scan response data
    m_scanRespData.include_name = true;                               // Caution: This may lead to a crash if the device name has more than 29 characters
    m_scanRespData.include_txpower = true;
    m_scanRespData.appearance = 0;  // If defined the 'Appearance' attribute is already included in the advertising data
    m_scanRespData.flag = 0;        // 'Flags' attribute should no be included in the scan response

    errRc = ::esp_ble_gap_config_adv_data(&m_scanRespData);
    if (errRc != ESP_OK) {
      log_e("<< esp_ble_gap_config_adv_data (Scan response): rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
      return;
    }
  }

  // If we had services to advertise then we previously allocated some storage for them.
  // Here we release that storage.
  free(m_advData.p_service_uuid);  //TODO change this variable to local scope?
  m_advData.p_service_uuid = nullptr;

  // Start advertising.
  errRc = ::esp_ble_gap_start_advertising(&m_advParams);
  if (errRc != ESP_OK) {
    log_e("<< esp_ble_gap_start_advertising: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
    return;
  }
  log_v("<< start");
}  // start

/**
 * @brief Stop advertising.
 * Stop advertising.
 * @return N/A.
 */
void BLEAdvertising::stop() {
  log_v(">> stop");
  esp_err_t errRc = ::esp_ble_gap_stop_advertising();
  if (errRc != ESP_OK) {
    log_e("esp_ble_gap_stop_advertising: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
    return;
  }
  log_v("<< stop");
}  // stop

/**
 * @brief Set BLE address.
 * @param [in] Bluetooth address.
 * @param [in] Bluetooth address type.
 * Set BLE address.
 */

void BLEAdvertising::setDeviceAddress(esp_bd_addr_t addr, esp_ble_addr_type_t type) {
  log_v(">> setPrivateAddress");

  m_advParams.own_addr_type = type;
  esp_err_t errRc = esp_ble_gap_set_rand_addr((uint8_t *)addr);
  if (errRc != ESP_OK) {
    log_e("esp_ble_gap_set_rand_addr: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
    return;
  }
  log_v("<< setPrivateAddress");
}  // setPrivateAddress

/**
 * @brief Add data to the payload to be advertised.
 * @param [in] data The data to be added to the payload.
 */
void BLEAdvertisementData::addData(String data) {
  if ((m_payload.length() + data.length()) > ESP_BLE_ADV_DATA_LEN_MAX) {
    return;
  }
  m_payload.concat(data);
}  // addData

/**
 * @brief Set the appearance.
 * @param [in] appearance The appearance code value.
 *
 * See also:
 * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.gap.appearance.xml
 */
void BLEAdvertisementData::setAppearance(uint16_t appearance) {
  char cdata[2];
  cdata[0] = 3;
  cdata[1] = ESP_BLE_AD_TYPE_APPEARANCE;  // 0x19
  addData(String(cdata, 2) + String((char *)&appearance, 2));
}  // setAppearance

/**
 * @brief Set the complete services.
 * @param [in] uuid The single service to advertise.
 */
void BLEAdvertisementData::setCompleteServices(BLEUUID uuid) {
  char cdata[2];
  switch (uuid.bitSize()) {
    case 16:
    {
      // [Len] [0x02] [LL] [HH]
      cdata[0] = 3;
      cdata[1] = ESP_BLE_AD_TYPE_16SRV_CMPL;  // 0x03
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid16, 2));
      break;
    }

    case 32:
    {
      // [Len] [0x04] [LL] [LL] [HH] [HH]
      cdata[0] = 5;
      cdata[1] = ESP_BLE_AD_TYPE_32SRV_CMPL;  // 0x05
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid32, 4));
      break;
    }

    case 128:
    {
      // [Len] [0x04] [0] [1] ... [15]
      cdata[0] = 17;
      cdata[1] = ESP_BLE_AD_TYPE_128SRV_CMPL;  // 0x07
      addData(String(cdata, 2) + String((char *)uuid.getNative()->uuid.uuid128, 16));
      break;
    }

    default: return;
  }
}  // setCompleteServices

/**
 * @brief Set the advertisement flags.
 * @param [in] The flags to be set in the advertisement.
 *
 * * ESP_BLE_ADV_FLAG_LIMIT_DISC
 * * ESP_BLE_ADV_FLAG_GEN_DISC
 * * ESP_BLE_ADV_FLAG_BREDR_NOT_SPT
 * * ESP_BLE_ADV_FLAG_DMT_CONTROLLER_SPT
 * * ESP_BLE_ADV_FLAG_DMT_HOST_SPT
 * * ESP_BLE_ADV_FLAG_NON_LIMIT_DISC
 */
void BLEAdvertisementData::setFlags(uint8_t flag) {
  char cdata[3];
  cdata[0] = 2;
  cdata[1] = ESP_BLE_AD_TYPE_FLAG;  // 0x01
  cdata[2] = flag;
  addData(String(cdata, 3));
}  // setFlag

/**
 * @brief Set manufacturer specific data.
 * @param [in] data Manufacturer data.
 */
void BLEAdvertisementData::setManufacturerData(String data) {
  log_d("BLEAdvertisementData", ">> setManufacturerData");
  char cdata[2];
  cdata[0] = data.length() + 1;
  cdata[1] = ESP_BLE_AD_MANUFACTURER_SPECIFIC_TYPE;  // 0xff
  addData(String(cdata, 2) + data);
  log_d("BLEAdvertisementData", "<< setManufacturerData");
}  // setManufacturerData

/**
 * @brief Set the name.
 * @param [in] The complete name of the device.
 */
void BLEAdvertisementData::setName(String name) {
  log_d("BLEAdvertisementData", ">> setName: %s", name.c_str());
  char cdata[2];
  cdata[0] = name.length() + 1;
  cdata[1] = ESP_BLE_AD_TYPE_NAME_CMPL;  // 0x09
  addData(String(cdata, 2) + name);
  log_d("BLEAdvertisementData", "<< setName");
}  // setName

/**
 * @brief Set the partial services.
 * @param [in] uuid The single service to advertise.
 */
void BLEAdvertisementData::setPartialServices(BLEUUID uuid) {
  char cdata[2];
  switch (uuid.bitSize()) {
    case 16:
    {
      // [Len] [0x02] [LL] [HH]
      cdata[0] = 3;
      cdata[1] = ESP_BLE_AD_TYPE_16SRV_PART;  // 0x02
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid16, 2));
      break;
    }

    case 32:
    {
      // [Len] [0x04] [LL] [LL] [HH] [HH]
      cdata[0] = 5;
      cdata[1] = ESP_BLE_AD_TYPE_32SRV_PART;  // 0x04
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid32, 4));
      break;
    }

    case 128:
    {
      // [Len] [0x04] [0] [1] ... [15]
      cdata[0] = 17;
      cdata[1] = ESP_BLE_AD_TYPE_128SRV_PART;  // 0x06
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid128, 16));
      break;
    }

    default: return;
  }
}  // setPartialServices

/**
 * @brief Set the service data (UUID + data)
 * @param [in] uuid The UUID to set with the service data.  Size of UUID will be used.
 * @param [in] data The data to be associated with the service data advert.
 */
void BLEAdvertisementData::setServiceData(BLEUUID uuid, String data) {
  char cdata[2];
  switch (uuid.bitSize()) {
    case 16:
    {
      // [Len] [0x16] [UUID16] data
      cdata[0] = data.length() + 3;
      cdata[1] = ESP_BLE_AD_TYPE_SERVICE_DATA;  // 0x16
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid16, 2) + data);
      break;
    }

    case 32:
    {
      // [Len] [0x20] [UUID32] data
      cdata[0] = data.length() + 5;
      cdata[1] = ESP_BLE_AD_TYPE_32SERVICE_DATA;  // 0x20
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid32, 4) + data);
      break;
    }

    case 128:
    {
      // [Len] [0x21] [UUID128] data
      cdata[0] = data.length() + 17;
      cdata[1] = ESP_BLE_AD_TYPE_128SERVICE_DATA;  // 0x21
      addData(String(cdata, 2) + String((char *)&uuid.getNative()->uuid.uuid128, 16) + data);
      break;
    }

    default: return;
  }
}  // setServiceData

/**
 * @brief Set the short name.
 * @param [in] The short name of the device.
 */
void BLEAdvertisementData::setShortName(String name) {
  log_d("BLEAdvertisementData", ">> setShortName: %s", name.c_str());
  char cdata[2];
  cdata[0] = name.length() + 1;
  cdata[1] = ESP_BLE_AD_TYPE_NAME_SHORT;  // 0x08
  addData(String(cdata, 2) + name);
  log_d("BLEAdvertisementData", "<< setShortName");
}  // setShortName

/**
 * @brief Retrieve the payload that is to be advertised.
 * @return The payload that is to be advertised.
 */
String BLEAdvertisementData::getPayload() {
  return m_payload;
}  // getPayload

void BLEAdvertising::handleGAPEvent(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) {

  log_d("handleGAPEvent [event no: %d]", (int)event);

  switch (event) {
    case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
    {
      // m_semaphoreSetAdv.give();
      break;
    }
    case ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT:
    {
      // m_semaphoreSetAdv.give();
      break;
    }
    case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
    {
      // m_semaphoreSetAdv.give();
      break;
    }
    case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
    {
      log_i("STOP advertising");
      //start();
      break;
    }
    default: break;
  }
}

#ifdef SOC_BLE_50_SUPPORTED

/**
* @brief           Creator
*
* @param[in]       instance : number of multi advertising instances
*
*
*/
BLEMultiAdvertising::BLEMultiAdvertising(uint8_t num) {
  params_arrays = (esp_ble_gap_ext_adv_params_t *)calloc(num, sizeof(esp_ble_gap_ext_adv_params_t));
  ext_adv = (esp_ble_gap_ext_adv_t *)calloc(num, sizeof(esp_ble_gap_ext_adv_t));
  count = num;
}

/**
* @brief           This function is used by the Host to set the advertising parameters.
*
* @param[in]       instance : identifies the advertising set whose parameters are being configured.
* @param[in]       params   : advertising parameters
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::setAdvertisingParams(uint8_t instance, const esp_ble_gap_ext_adv_params_t *params) {
  if (params->type == ESP_BLE_GAP_SET_EXT_ADV_PROP_LEGACY_IND && params->primary_phy == ESP_BLE_GAP_PHY_2M) {
    return false;
  }
  esp_err_t rc;
  rc = esp_ble_gap_ext_adv_set_params(instance, params);

  return ESP_OK == rc;
}

/**
* @brief           This function is used to set the data used in advertising PDUs that have a data field
*
* @param[in]       instance : identifies the advertising set whose data are being configured
* @param[in]       length   : data length
* @param[in]       data     : data information
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::setAdvertisingData(uint8_t instance, uint16_t length, const uint8_t *data) {
  esp_err_t rc;
  rc = esp_ble_gap_config_ext_adv_data_raw(instance, length, data);
  if (rc) {
    log_e("set advertising data err: %d", rc);
  }

  return ESP_OK == rc;
}

bool BLEMultiAdvertising::setScanRspData(uint8_t instance, uint16_t length, const uint8_t *data) {
  esp_err_t rc;
  rc = esp_ble_gap_config_ext_scan_rsp_data_raw(instance, length, data);
  if (rc) {
    log_e("set scan resp data err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used to request the Controller to enable one or more
*                  advertising sets using the advertising sets identified by the instance parameter.
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::start() {
  return start(count, 0);
}

/**
* @brief           This function is used to request the Controller to enable one or more
*                  advertising sets using the advertising sets identified by the instance parameter.
*
* @param[in]       num : Number of advertising sets to enable or disable
* @param[in]       from : first sxt adv set to use
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::start(uint8_t num, uint8_t from) {
  if (num > count || from >= count) {
    return false;
  }

  esp_err_t rc;
  rc = esp_ble_gap_ext_adv_start(num, &ext_adv[from]);
  if (rc) {
    log_e("start extended advertising err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used to request the Controller to disable one or more
*                  advertising sets using the advertising sets identified by the instance parameter.
*
* @param[in]       num_adv : Number of advertising sets to enable or disable
* @param[in]       ext_adv_inst : ext adv instance
*
* @return            - ESP_OK : success
*                    - other  : failed
*
*/
bool BLEMultiAdvertising::stop(uint8_t num_adv, const uint8_t *ext_adv_inst) {
  esp_err_t rc;
  rc = esp_ble_gap_ext_adv_stop(num_adv, ext_adv_inst);
  if (rc) {
    log_e("stop extended advertising err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used to remove an advertising set from the Controller.
*
* @param[in]       instance : Used to identify an advertising set
*
* @return            - ESP_OK : success
*                    - other  : failed
*
*/
bool BLEMultiAdvertising::remove(uint8_t instance) {
  esp_err_t rc;
  rc = esp_ble_gap_ext_adv_set_remove(instance);
  if (rc) {
    log_e("remove extended advertising err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used to remove all existing advertising sets from the Controller.
*
*
* @return            - ESP_OK : success
*                    - other  : failed
*
*/
bool BLEMultiAdvertising::clear() {
  esp_err_t rc;
  rc = esp_ble_gap_ext_adv_set_clear();
  if (rc) {
    log_e("clear extended advertising err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used by the Host to set the random device address specified by the Random_Address parameter.
*
* @param[in]       instance  : Used to identify an advertising set
* @param[in]       addr_legacy : Random Device Address
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::setInstanceAddress(uint8_t instance, uint8_t *addr_legacy) {
  esp_err_t rc;
  rc = esp_ble_gap_ext_adv_set_rand_addr(instance, addr_legacy);
  if (rc) {
    log_e("set random address err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used by the Host to set the parameters for periodic advertising.
*
* @param[in]       instance : identifies the advertising set whose periodic advertising parameters are being configured.
* @param[in]       params : periodic adv parameters
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::setPeriodicAdvertisingParams(uint8_t instance, const esp_ble_gap_periodic_adv_params_t *params) {
  esp_err_t rc;
  rc = esp_ble_gap_periodic_adv_set_params(instance, params);
  if (rc) {
    log_e("set periodic advertising params err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used to set the data used in periodic advertising PDUs.
*
* @param[in]       instance : identifies the advertising set whose periodic advertising parameters are being configured.
* @param[in]       length : the length of periodic data
* @param[in]       data : periodic data information
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::setPeriodicAdvertisingData(uint8_t instance, uint16_t length, const uint8_t *data) {
  esp_err_t rc;
  rc = esp_ble_gap_config_periodic_adv_data_raw(instance, length, data);
  if (rc) {
    log_e("set periodic advertising raw data err: %d", rc);
  }

  return ESP_OK == rc;
}

/**
* @brief           This function is used to request the Controller to enable the periodic advertising for the advertising set specified
*
* @param[in]       instance : Used to identify an advertising set
*
* @return            - true : success
*                    - false  : failed
*
*/
bool BLEMultiAdvertising::startPeriodicAdvertising(uint8_t instance) {
  esp_err_t rc;
  rc = esp_ble_gap_periodic_adv_start(instance);
  if (rc) {
    log_e("start periodic advertising err: %d", rc);
  }

  return ESP_OK == rc;
}

void BLEMultiAdvertising::setDuration(uint8_t instance, int duration, int max_events) {
  ext_adv[instance] = {instance, duration, max_events};
}

#endif  // SOC_BLE_50_SUPPORTED

#endif /* CONFIG_BLUEDROID_ENABLED */
#endif /* SOC_BLE_SUPPORTED */