/* * NimBLEExtAdvertising.cpp * * Created: on February 6, 2022 * Author H2zero */ #include "nimconfig.h" #if defined(CONFIG_BT_ENABLED) && \ defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER) && \ CONFIG_BT_NIMBLE_EXT_ADV #if defined(CONFIG_NIMBLE_CPP_IDF) #include "services/gap/ble_svc_gap.h" #else #include "nimble/nimble/host/services/gap/include/services/gap/ble_svc_gap.h" #endif #include "NimBLEExtAdvertising.h" #include "NimBLEDevice.h" #include "NimBLEServer.h" #include "NimBLEUtils.h" #include "NimBLELog.h" static NimBLEExtAdvertisingCallbacks defaultCallbacks; static const char* LOG_TAG = "NimBLEExtAdvertising"; /** * @brief Destructor: deletes callback instances if requested. */ NimBLEExtAdvertising::~NimBLEExtAdvertising() { if(m_deleteCallbacks && m_pCallbacks != &defaultCallbacks) { delete m_pCallbacks; } } /** * @brief Register the extended advertisement data. * @param [in] inst_id The extended advertisement instance ID to assign to this data. * @param [in] adv The extended advertisement instance with the data to set. * @return True if advertising started successfully. */ bool NimBLEExtAdvertising::setInstanceData(uint8_t inst_id, NimBLEExtAdvertisement& adv) { adv.m_params.sid = inst_id; // Legacy advertising as connectable requires the scannable flag also. if (adv.m_params.legacy_pdu && adv.m_params.connectable) { adv.m_params.scannable = true; } // If connectable or not scannable disable the callback for scan response requests if (adv.m_params.connectable || !adv.m_params.scannable) { adv.m_params.scan_req_notif = false; } #if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL) NimBLEServer* pServer = NimBLEDevice::getServer(); if (pServer != nullptr) { if (!pServer->m_gattsStarted) { pServer->start(); } } int rc = ble_gap_ext_adv_configure(inst_id, &adv.m_params, NULL, (pServer != nullptr) ? NimBLEServer::handleGapEvent : NimBLEExtAdvertising::handleGapEvent, NULL); #else int rc = ble_gap_ext_adv_configure(inst_id, &data.m_params, NULL, NimBLEExtAdvertising::handleGapEvent, NULL); #endif if (rc != 0) { NIMBLE_LOGE(LOG_TAG, "Advertising config error: rc = %d", rc); } else { os_mbuf *buf; buf = os_msys_get_pkthdr(adv.m_payload.size(), 0); if (!buf) { NIMBLE_LOGE(LOG_TAG, "Data buffer allocation failed"); return false; } rc = os_mbuf_append(buf, &adv.m_payload[0], adv.m_payload.size()); if (rc != 0) { NIMBLE_LOGE(LOG_TAG, "Unable to copy data: rc = %d", rc); return false; } else { if (adv.m_params.scannable && !adv.m_params.legacy_pdu) { rc = ble_gap_ext_adv_rsp_set_data(inst_id, buf); } else { rc = ble_gap_ext_adv_set_data(inst_id, buf); } if (rc != 0) { NIMBLE_LOGE(LOG_TAG, "Invalid advertisement data: rc = %d", rc); } else { if (!adv.m_advAddress.isNull()) { rc = ble_gap_ext_adv_set_addr(inst_id, adv.m_advAddress.getBase()); } if (rc != 0) { NIMBLE_LOGE(LOG_TAG, "Error setting advertisement address: rc = %d", rc); return false; } } } } return (rc == 0); } /** * @brief Set the scan response data for a legacy advertisement. * @param [in] inst_id The extended advertisement instance ID to assign to this data. * @param [in] lsr A reference to a NimBLEExtAdvertisement that contains the data. */ bool NimBLEExtAdvertising::setScanResponseData(uint8_t inst_id, NimBLEExtAdvertisement & lsr) { os_mbuf *buf = os_msys_get_pkthdr(lsr.m_payload.size(), 0); if (!buf) { NIMBLE_LOGE(LOG_TAG, "Data buffer allocation failed"); return false; } int rc = os_mbuf_append(buf, &lsr.m_payload[0], lsr.m_payload.size()); if (rc != 0) { NIMBLE_LOGE(LOG_TAG, "Unable to copy scan data: rc = %d", rc); return false; } else { rc = ble_gap_ext_adv_rsp_set_data(inst_id, buf); } return (rc == 0); } /** * @brief Start extended advertising. * @param [in] inst_id The extended advertisement instance ID to start. * @param [in] duration How long to advertise for in milliseconds, 0 = forever (default). * @param [in] max_events Maximum number of advertisement events to send, 0 = no limit (default). * @return True if advertising started successfully. */ bool NimBLEExtAdvertising::start(uint8_t inst_id, int duration, int max_events) { NIMBLE_LOGD(LOG_TAG, ">> Extended Advertising start"); // If Host is not synced we cannot start advertising. if(!NimBLEDevice::m_synced) { NIMBLE_LOGE(LOG_TAG, "Host reset, wait for sync."); return false; } int rc = ble_gap_ext_adv_start(inst_id, duration / 10, max_events); switch (rc) { case 0: m_advStatus[inst_id] = true; break; case BLE_HS_EINVAL: NIMBLE_LOGE(LOG_TAG, "Unable to advertise - Value Error"); break; case BLE_HS_EALREADY: NIMBLE_LOGI(LOG_TAG, "Advertisement Already active"); break; case BLE_HS_ETIMEOUT_HCI: case BLE_HS_EOS: case BLE_HS_ECONTROLLER: case BLE_HS_ENOTSYNCED: NIMBLE_LOGE(LOG_TAG, "Unable to advertise - Host Reset"); break; default: NIMBLE_LOGE(LOG_TAG, "Error enabling advertising; rc=%d, %s", rc, NimBLEUtils::returnCodeToString(rc)); break; } NIMBLE_LOGD(LOG_TAG, "<< Extended Advertising start"); return (rc == 0 || rc == BLE_HS_EALREADY); } // start /** * @brief Stop and remove this instance data from the advertisement set. * @param [in] inst_id The extended advertisement instance to stop advertising. * @return True if successful. */ bool NimBLEExtAdvertising::removeInstance(uint8_t inst_id) { if (stop(inst_id)) { int rc = ble_gap_ext_adv_remove(inst_id); if (rc != 0 && rc != BLE_HS_EALREADY) { NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_remove rc = %d %s", rc, NimBLEUtils::returnCodeToString(rc)); return false; } return true; } return false; } // removeInstance /** * @brief Stop and remove all advertising instance data. * @return True if successful. */ bool NimBLEExtAdvertising::removeAll() { if (stop()) { int rc = ble_gap_ext_adv_clear(); if (rc == 0 || rc == BLE_HS_EALREADY) { return true; } else { NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_clear rc = %d %s", rc, NimBLEUtils::returnCodeToString(rc)); } } return false; } // removeAll /** * @brief Stop advertising this instance data. * @param [in] inst_id The extended advertisement instance to stop advertising. * @return True if successful. */ bool NimBLEExtAdvertising::stop(uint8_t inst_id) { int rc = ble_gap_ext_adv_stop(inst_id); if (rc != 0 && rc != BLE_HS_EALREADY) { NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_stop rc = %d %s", rc, NimBLEUtils::returnCodeToString(rc)); return false; } m_advStatus[inst_id] = false; return true; } // stop /** * @brief Stop all advertisements. * @return True if successful. */ bool NimBLEExtAdvertising::stop() { int rc = ble_gap_ext_adv_clear(); if (rc != 0 && rc != BLE_HS_EALREADY) { NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_stop rc = %d %s", rc, NimBLEUtils::returnCodeToString(rc)); return false; } for(auto it : m_advStatus) { it = false; } return true; } // stop /** * @brief Set a callback to call when the advertisement stops. * @param [in] pCallbacks A pointer to a callback to be invoked when an advertisement stops. * @param [in] deleteCallbacks if true callback class will be deleted when advertising is destructed. */ void NimBLEExtAdvertising::setCallbacks(NimBLEExtAdvertisingCallbacks* pCallbacks, bool deleteCallbacks) { if (pCallbacks != nullptr){ m_pCallbacks = pCallbacks; m_deleteCallbacks = deleteCallbacks; } else { m_pCallbacks = &defaultCallbacks; } } // setCallbacks /** * @brief Check if currently advertising. * @param [in] inst_id The instance ID of the advertised data to get the status of. * @return True if advertising is active. */ bool NimBLEExtAdvertising::isActive(uint8_t inst_id) { return m_advStatus[inst_id]; } // isAdvertising /** * @brief Check if any instances are currently advertising. * @return True if any instance is active. */ bool NimBLEExtAdvertising::isAdvertising() { for (auto it : m_advStatus) { if (it) { return true; } } return false; } // isAdvertising /* * Host reset seems to clear advertising data, * we need clear the flag so it reloads it. */ void NimBLEExtAdvertising::onHostSync() { NIMBLE_LOGD(LOG_TAG, "Host re-synced"); for(auto it : m_advStatus) { it = false; } } // onHostSync /** * @brief Handler for gap events when not using peripheral role. * @param [in] event the event data. * @param [in] arg pointer to the advertising instance. */ /*STATIC*/ int NimBLEExtAdvertising::handleGapEvent(struct ble_gap_event *event, void *arg) { (void)arg; NimBLEExtAdvertising* pAdv = NimBLEDevice::getAdvertising(); switch (event->type) { case BLE_GAP_EVENT_ADV_COMPLETE: { switch (event->adv_complete.reason) { // Don't call the callback if host reset, we want to // preserve the active flag until re-sync to restart advertising. case BLE_HS_ETIMEOUT_HCI: case BLE_HS_EOS: case BLE_HS_ECONTROLLER: case BLE_HS_ENOTSYNCED: NIMBLE_LOGE(LOG_TAG, "host reset, rc = %d", event->adv_complete.reason); NimBLEDevice::onReset(event->adv_complete.reason); return 0; default: break; } pAdv->m_advStatus[event->adv_complete.instance] = false; pAdv->m_pCallbacks->onStopped(pAdv, event->adv_complete.reason, event->adv_complete.instance); break; } case BLE_GAP_EVENT_SCAN_REQ_RCVD: { pAdv->m_pCallbacks->onScanRequest(pAdv, event->scan_req_rcvd.instance, NimBLEAddress(event->scan_req_rcvd.scan_addr)); break; } } return 0; } // handleGapEvent /** Default callback handlers */ void NimBLEExtAdvertisingCallbacks::onStopped(NimBLEExtAdvertising *pAdv, int reason, uint8_t inst_id) { NIMBLE_LOGD("NimBLEExtAdvertisingCallbacks", "onStopped: Default"); } // onStopped void NimBLEExtAdvertisingCallbacks::onScanRequest(NimBLEExtAdvertising *pAdv, uint8_t inst_id, NimBLEAddress addr) { NIMBLE_LOGD("NimBLEExtAdvertisingCallbacks", "onScanRequest: Default"); } // onScanRequest /** * @brief Construct a BLE extended advertisement. * @param [in] priPhy The primary Phy to advertise on, can be one of: * * BLE_HCI_LE_PHY_1M * * BLE_HCI_LE_PHY_CODED * @param [in] secPhy The secondary Phy to advertise on, can be one of: * * BLE_HCI_LE_PHY_1M * * BLE_HCI_LE_PHY_2M * * BLE_HCI_LE_PHY_CODED */ NimBLEExtAdvertisement::NimBLEExtAdvertisement(uint8_t priPhy, uint8_t secPhy) : m_advAddress{} { memset (&m_params, 0, sizeof(m_params)); m_params.own_addr_type = NimBLEDevice::m_own_addr_type; m_params.primary_phy = priPhy; m_params.secondary_phy = secPhy; m_params.tx_power = 127; } // NimBLEExtAdvertisement /** * @brief Sets wether the advertisement should use legacy (BLE 4.0, 31 bytes max) advertising. * @param [in] val true = using legacy advertising. */ void NimBLEExtAdvertisement::setLegacyAdvertising(bool val) { m_params.legacy_pdu = val; } // setLegacyAdvertising /** * @brief Sets wether the advertisement has scan response data available. * @param [in] val true = scan response is available. */ void NimBLEExtAdvertisement::setScannable(bool val) { m_params.scannable = val; } // setScannable /** * @brief Sets the transmission power level for this advertisement. * @param [in] dbm the transmission power to use in dbm. * @details The allowable value range depends on device hardware. \n * The ESP32C3 and ESP32S3 have a range of -27 to +18. */ void NimBLEExtAdvertisement::setTxPower(int8_t dbm) { m_params.tx_power = dbm; } /** * @brief Sets wether this advertisement should advertise as a connectable device. * @param [in] val True = connectable. */ void NimBLEExtAdvertisement::setConnectable(bool val) { #if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL) m_params.connectable = val; #endif } // setConnectable /** * @brief Set the address to use for this advertisement. * @param [in] addr The address to use. */ void NimBLEExtAdvertisement::setAddress(const NimBLEAddress & addr) { m_advAddress = addr; // Must use random address type. m_params.own_addr_type = BLE_OWN_ADDR_RANDOM; } /** * @brief Sets The primary channels to advertise on. * @param [in] ch37 Advertise on channel 37. * @param [in] ch38 Advertise on channel 38. * @param [in] ch39 Advertise on channel 39. * @details This will set a bitmask using the input parameters to allow different \n * combinations. If all inputs are false then all 3 channels will be used. */ void NimBLEExtAdvertisement::setPrimaryChannels(bool ch37, bool ch38, bool ch39) { m_params.channel_map = (ch37 | (ch38 << 1) | (ch39 << 2)); } // setPrimaryChannels /** * @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 NimBLEExtAdvertisement::setScanFilter(bool scanRequestWhitelistOnly, bool connectWhitelistOnly) { if (!scanRequestWhitelistOnly && !connectWhitelistOnly) { m_params.filter_policy = BLE_HCI_ADV_FILT_NONE; return; } if (scanRequestWhitelistOnly && !connectWhitelistOnly) { m_params.filter_policy = BLE_HCI_ADV_FILT_SCAN; return; } if (!scanRequestWhitelistOnly && connectWhitelistOnly) { m_params.filter_policy = BLE_HCI_ADV_FILT_CONN; return; } if (scanRequestWhitelistOnly && connectWhitelistOnly) { m_params.filter_policy = BLE_HCI_ADV_FILT_BOTH; return; } } // setScanFilter /** * @brief Sets the peer to directly advertise to. * @param [in] addr The address of the peer to direct the advertisements. */ void NimBLEExtAdvertisement::setDirectedPeer(const NimBLEAddress & addr) { m_params.peer = *addr.getBase(); } // setDirectedPeer /** * @brief Enable or disable direct advertisements to the peer set with `NimBLEExtAdvertisement::setDirectedPeer` * @param [in] val true = send directed advertisements to peer. * @param [in] high_duty true = use fast advertising rate, default - true. */ void NimBLEExtAdvertisement::setDirected(bool val, bool high_duty) { m_params.directed = val; m_params.high_duty_directed = high_duty; } // setDirected /** * @brief Set the minimum advertising interval. * @param [in] mininterval Minimum value for advertising interval in 0.625ms units, 0 = use default. */ void NimBLEExtAdvertisement::setMinInterval(uint32_t mininterval) { m_params.itvl_min = mininterval; } // setMinInterval /** * @brief Set the maximum advertising interval. * @param [in] maxinterval Maximum value for advertising interval in 0.625ms units, 0 = use default. */ void NimBLEExtAdvertisement::setMaxInterval(uint32_t maxinterval) { m_params.itvl_max = maxinterval; } // setMaxInterval /** * @brief Set the primary advertising PHY to use * @param [in] phy Can be one of following constants: * * BLE_HCI_LE_PHY_1M * * BLE_HCI_LE_PHY_CODED */ void NimBLEExtAdvertisement::setPrimaryPhy(uint8_t phy) { m_params.primary_phy = phy; } // setPrimaryPhy /** * @brief Set the secondary advertising PHY to use * @param [in] phy Can be one of following constants: * * BLE_HCI_LE_PHY_1M * * BLE_HCI_LE_PHY_2M * * BLE_HCI_LE_PHY_CODED */ void NimBLEExtAdvertisement::setSecondaryPhy(uint8_t phy) { m_params.secondary_phy = phy; } // setSecondaryPhy /** * @brief Sets whether the advertisement should be anonymous. * @param [in] val Set to true to enable anonymous advertising. * * @details Anonymous advertising omits the device's address from the advertisement. */ void NimBLEExtAdvertisement::setAnonymous(bool val) { m_params.anonymous = val; } // setAnonymous /** * @brief Sets whether the scan response request callback should be called. * @param [in] enable If true the scan response request callback will be called for this advertisement. */ void NimBLEExtAdvertisement::enableScanRequestCallback(bool enable) { m_params.scan_req_notif = enable; } // enableScanRequestCallback /** * @brief Clears the data stored in this instance, does not change settings. * @details This will clear all data but preserves advertising parameter settings. */ void NimBLEExtAdvertisement::clearData() { std::vector swap; std::swap(m_payload, swap); } /** * @brief Get the size of the current data. */ size_t NimBLEExtAdvertisement::getDataSize() { return m_payload.size(); } // getDataSize /** * @brief Set the advertisement data. * @param [in] data The data to be set as the payload. * @param [in] length The size of data. * @details This will completely replace any data that was previously set. */ void NimBLEExtAdvertisement::setData(const uint8_t * data, size_t length) { m_payload.assign(data, data + length); } // setData /** * @brief Add data to the payload to be advertised. * @param [in] data The data to be added to the payload. */ void NimBLEExtAdvertisement::addData(const std::string &data) { addData((uint8_t*)data.data(), data.length()); } // addData /** * @brief Add data to the payload to be advertised. * @param [in] data The data to be added to the payload. * @param [in] length The size of data to be added to the payload. */ void NimBLEExtAdvertisement::addData(const uint8_t * data, size_t length) { m_payload.insert(m_payload.end(), data, data + length); } // addData /** * @brief Set the appearance. * @param [in] appearance The appearance code value. */ void NimBLEExtAdvertisement::setAppearance(uint16_t appearance) { char cdata[2]; cdata[0] = 3; cdata[1] = BLE_HS_ADV_TYPE_APPEARANCE; // 0x19 addData(std::string(cdata, 2) + std::string((char*) &appearance, 2)); } // setAppearance /** * @brief Set the advertisement flags. * @param [in] flag The flags to be set in the advertisement. * * BLE_HS_ADV_F_DISC_LTD * * BLE_HS_ADV_F_DISC_GEN * * BLE_HS_ADV_F_BREDR_UNSUP - must always use with NimBLE */ void NimBLEExtAdvertisement::setFlags(uint8_t flag) { char cdata[3]; cdata[0] = 2; cdata[1] = BLE_HS_ADV_TYPE_FLAGS; // 0x01 cdata[2] = flag | BLE_HS_ADV_F_BREDR_UNSUP; addData(std::string(cdata, 3)); } // setFlags /** * @brief Set manufacturer specific data. * @param [in] data The manufacturer data to advertise. */ void NimBLEExtAdvertisement::setManufacturerData(const std::string &data) { char cdata[2]; cdata[0] = data.length() + 1; cdata[1] = BLE_HS_ADV_TYPE_MFG_DATA ; // 0xff addData(std::string(cdata, 2) + data); } // setManufacturerData /** * @brief Set the URI to advertise. * @param [in] uri The uri to advertise. */ void NimBLEExtAdvertisement::setURI(const std::string &uri) { char cdata[2]; cdata[0] = uri.length() + 1; cdata[1] = BLE_HS_ADV_TYPE_URI; addData(std::string(cdata, 2) + uri); } // setURI /** * @brief Set the complete name of this device. * @param [in] name The name to advertise. */ void NimBLEExtAdvertisement::setName(const std::string &name) { char cdata[2]; cdata[0] = name.length() + 1; cdata[1] = BLE_HS_ADV_TYPE_COMP_NAME; // 0x09 addData(std::string(cdata, 2) + name); } // setName /** * @brief Set a single service to advertise as a complete list of services. * @param [in] uuid The service to advertise. */ void NimBLEExtAdvertisement::setCompleteServices(const NimBLEUUID &uuid) { setServices(true, uuid.bitSize(), {uuid}); } // setCompleteServices /** * @brief Set the complete list of 16 bit services to advertise. * @param [in] v_uuid A vector of 16 bit UUID's to advertise. */ void NimBLEExtAdvertisement::setCompleteServices16(const std::vector& v_uuid) { setServices(true, 16, v_uuid); } // setCompleteServices16 /** * @brief Set the complete list of 32 bit services to advertise. * @param [in] v_uuid A vector of 32 bit UUID's to advertise. */ void NimBLEExtAdvertisement::setCompleteServices32(const std::vector& v_uuid) { setServices(true, 32, v_uuid); } // setCompleteServices32 /** * @brief Set a single service to advertise as a partial list of services. * @param [in] uuid The service to advertise. */ void NimBLEExtAdvertisement::setPartialServices(const NimBLEUUID &uuid) { setServices(false, uuid.bitSize(), {uuid}); } // setPartialServices /** * @brief Set the partial list of services to advertise. * @param [in] v_uuid A vector of 16 bit UUID's to advertise. */ void NimBLEExtAdvertisement::setPartialServices16(const std::vector& v_uuid) { setServices(false, 16, v_uuid); } // setPartialServices16 /** * @brief Set the partial list of services to advertise. * @param [in] v_uuid A vector of 32 bit UUID's to advertise. */ void NimBLEExtAdvertisement::setPartialServices32(const std::vector& v_uuid) { setServices(false, 32, v_uuid); } // setPartialServices32 /** * @brief Utility function to create the list of service UUID's from a vector. * @param [in] complete If true the vector is the complete set of services. * @param [in] size The bit size of the UUID's in the vector. (16, 32, or 128). * @param [in] v_uuid The vector of service UUID's to advertise. */ void NimBLEExtAdvertisement::setServices(const bool complete, const uint8_t size, const std::vector &v_uuid) { char cdata[2]; cdata[0] = (size / 8) * v_uuid.size() + 1; switch(size) { case 16: cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS16 : BLE_HS_ADV_TYPE_INCOMP_UUIDS16; break; case 32: cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS32 : BLE_HS_ADV_TYPE_INCOMP_UUIDS32; break; case 128: cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS128 : BLE_HS_ADV_TYPE_INCOMP_UUIDS128; break; default: return; } std::string uuids; for(auto &it : v_uuid){ if(it.bitSize() != size) { NIMBLE_LOGE(LOG_TAG, "Service UUID(%d) invalid", size); continue; } else { uuids += std::string(reinterpret_cast(it.getValue()), size / 8); } } addData(std::string(cdata, 2) + uuids); } // setServices /** * @brief Set the service data (UUID + data) * @param [in] uuid The UUID to set with the service data. * @param [in] data The data to be associated with the service data advertised. */ void NimBLEExtAdvertisement::setServiceData(const NimBLEUUID &uuid, const std::string &data) { uint8_t size = uuid.bitSize() / 8; char cdata[2] = {static_cast(1 + size), BLE_HS_ADV_TYPE_SVC_DATA_UUID16}; switch (size) { case 2: { // [Len] [0x16] [UUID16] data break; } case 16: { // [Len] [0x21] [UUID128] data cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID128; // 0x21 break; } case 4: { // [Len] [0x20] [UUID32] data cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID32; // 0x20 break; } default: return; } addData(std::string(cdata, 2) + std::string(reinterpret_cast(uuid.getValue()), size) + data); } // setServiceData /** * @brief Set the short name. * @param [in] name The short name of the device. */ void NimBLEExtAdvertisement::setShortName(const std::string &name) { char cdata[2]; cdata[0] = name.length() + 1; cdata[1] = BLE_HS_ADV_TYPE_INCOMP_NAME; // 0x08 addData(std::string(cdata, 2) + name); } // setShortName /** * @brief Adds Tx power level to the advertisement data. */ void NimBLEExtAdvertisement::addTxPower() { m_params.include_tx_power = 1; } // addTxPower /** * @brief Set the preferred connection interval parameters. * @param [in] min The minimum interval desired. * @param [in] max The maximum interval desired. */ void NimBLEExtAdvertisement::setPreferredParams(uint16_t min, uint16_t max) { uint8_t data[6]; data[0] = BLE_HS_ADV_SLAVE_ITVL_RANGE_LEN + 1; data[1] = BLE_HS_ADV_TYPE_SLAVE_ITVL_RANGE; data[2] = min; data[3] = min >> 8; data[4] = max; data[5] = max >> 8; addData(data, 6); } // setPreferredParams #endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_BROADCASTER && CONFIG_BT_NIMBLE_EXT_ADV */