7a4e7066f9
The current implementation has a getMTU function which returns the mtu sent in a message. This function allows you to set the MTU value on the connected device, it first sets the MTU locally by calling esp_ble_gatt_set_local_mtu. It then calls esp_ble_gattc_send_mtu_req to have the connected device also change its MTU size.
105 lines
4.2 KiB
C++
105 lines
4.2 KiB
C++
/*
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* BLEDevice.h
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*
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* Created on: Mar 22, 2017
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* Author: kolban
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*/
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#ifndef MAIN_BLEDEVICE_H_
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#define MAIN_BLEDEVICE_H_
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#include "sdkconfig.h"
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#if defined(CONFIG_BLUEDROID_ENABLED)
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#include <esp_gattc_api.h>
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#include <string.h>
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#include <map>
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#include <string>
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//#include "BLEExceptions.h"
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#include "BLERemoteService.h"
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#include "BLEService.h"
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#include "BLEAddress.h"
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#include "BLEAdvertisedDevice.h"
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class BLERemoteService;
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class BLEClientCallbacks;
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class BLEAdvertisedDevice;
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/**
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* @brief A model of a %BLE client.
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*/
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class BLEClient {
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public:
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BLEClient();
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~BLEClient();
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bool connect(BLEAdvertisedDevice* device);
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bool connect(BLEAddress address, esp_ble_addr_type_t type = BLE_ADDR_TYPE_PUBLIC); // Connect to the remote BLE Server
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void disconnect(); // Disconnect from the remote BLE Server
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BLEAddress getPeerAddress(); // Get the address of the remote BLE Server
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int getRssi(); // Get the RSSI of the remote BLE Server
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std::map<std::string, BLERemoteService*>* getServices(); // Get a map of the services offered by the remote BLE Server
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BLERemoteService* getService(const char* uuid); // Get a reference to a specified service offered by the remote BLE server.
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BLERemoteService* getService(BLEUUID uuid); // Get a reference to a specified service offered by the remote BLE server.
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std::string getValue(BLEUUID serviceUUID, BLEUUID characteristicUUID); // Get the value of a given characteristic at a given service.
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void handleGAPEvent(
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esp_gap_ble_cb_event_t event,
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esp_ble_gap_cb_param_t* param);
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bool isConnected(); // Return true if we are connected.
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void setClientCallbacks(BLEClientCallbacks *pClientCallbacks);
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void setValue(BLEUUID serviceUUID, BLEUUID characteristicUUID, std::string value); // Set the value of a given characteristic at a given service.
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std::string toString(); // Return a string representation of this client.
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uint16_t getConnId();
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esp_gatt_if_t getGattcIf();
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uint16_t getMTU();
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bool setMTU(uint16_t mtu);
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uint16_t m_appId;
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private:
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friend class BLEDevice;
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friend class BLERemoteService;
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friend class BLERemoteCharacteristic;
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friend class BLERemoteDescriptor;
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void gattClientEventHandler(
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esp_gattc_cb_event_t event,
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esp_gatt_if_t gattc_if,
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esp_ble_gattc_cb_param_t* param);
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BLEAddress m_peerAddress = BLEAddress((uint8_t*)"\0\0\0\0\0\0"); // The BD address of the remote server.
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uint16_t m_conn_id;
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// int m_deviceType;
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esp_gatt_if_t m_gattc_if;
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bool m_haveServices = false; // Have we previously obtain the set of services from the remote server.
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bool m_isConnected = false; // Are we currently connected.
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BLEClientCallbacks* m_pClientCallbacks;
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FreeRTOS::Semaphore m_semaphoreRegEvt = FreeRTOS::Semaphore("RegEvt");
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FreeRTOS::Semaphore m_semaphoreOpenEvt = FreeRTOS::Semaphore("OpenEvt");
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FreeRTOS::Semaphore m_semaphoreSearchCmplEvt = FreeRTOS::Semaphore("SearchCmplEvt");
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FreeRTOS::Semaphore m_semaphoreRssiCmplEvt = FreeRTOS::Semaphore("RssiCmplEvt");
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std::map<std::string, BLERemoteService*> m_servicesMap;
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std::map<BLERemoteService*, uint16_t> m_servicesMapByInstID;
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void clearServices(); // Clear any existing services.
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uint16_t m_mtu = 23;
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}; // class BLEDevice
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/**
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* @brief Callbacks associated with a %BLE client.
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*/
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class BLEClientCallbacks {
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public:
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virtual ~BLEClientCallbacks() {};
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virtual void onConnect(BLEClient *pClient) = 0;
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virtual void onDisconnect(BLEClient *pClient) = 0;
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};
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#endif // CONFIG_BLUEDROID_ENABLED
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#endif /* MAIN_BLEDEVICE_H_ */
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